Anti-Inflammatory Diet

All health care starts with diet. My recommendations for a healthy diet are here:
Anti-Inflammatory Diet and Lifestyle.
There are over 190 articles on diet, inflammation and disease on this blog
(find topics using search [upper left] or index [lower right]), and
more articles by Prof. Ayers on Suite101 .

Thursday, October 22, 2009

Erectile Dysfunction Diet

Inflammation Leads to Hypertension, Nitric Oxide Inadequacy and Impotence

Drugs for erectile dysfunction (ED), e.g. sidenafil (Viagra), compensate for inadequate nitric oxide (NO) production from arginine by inhibiting the enzyme, phosphodiesterase (PDE5), that hydrolyzes the cyclic GMP that mediates the NO-triggered process of vascular dilation.

Inflammation Is the Core of ED

Drug treatment to compensate for inadequate NO production is a multibillion dollar industry that avoids curing the underlying cause of the ED.  All of the physiological predispositions to ED result in or derive from chronic inflammation.  The major cause of ED, hypertension, frequently as a result of kidney disease, diabetes or metabolic syndrome, can be treated with diet and exercise.  Of course the typically recommended diet is essentially the Anti-Inflammatory Diet, compromised by the unenlightened persistence in the counterproductive use of grain starches, high fructose corn syrup, omega-6 polyunsaturated fatty acids and low saturated fat.

Decreasing Testosterone Results from Declining Health -- not Age

Recent studies also indicate that testosterone levels do not normally decline with age, but rather with declining health.  Healthy men have higher testosterone levels.  I would suggest that reduction in serum testosterone could be used as a measure of chronic inflammation in men.  This also suggests that many of the symptoms associated with aging in men actually reflect increasing chronic inflammation and reduced testosterone.

ED Diets Are Just the Anti-Inflammatory Diet Plus Veggies

A chronic high starch/sugar/HFCS diet with omega-6 oils in place of saturated fats, leads to chronic inflammation, high triglycerides, risk of metabolic syndrome and obesity.  Of course, diabetics have an even lower tolerance for this type of diet.  This diet, which is rather typical in many modern cultures, also provides a high risk of damage to endothelial cells lining the circulatory system and to ED.  The opposite of the inflammatory diet is the low carb, high omega-3 fish oil, no vegetable oil, meat/fish/dairy, Anti-Inflammatory Diet.  This is supplemented with exercise and high vitamin D.  Foods labeled as beneficial to ED also include specific herbs, spices and leafy vegetables, because these contain organic chemicals that inhibit components of the inflammation system or are anti-oxidants.
 
ED and Biofilms

I would suspect that men with ED suffer from chronic dietary inflammation and one of the consequences of this type of diet is the accumulation of pathogenic biofilms.  Hypertension, which is a contributor to ED and a consequence of chronic inflammation, is also associated with periodontal biofilms and kidney disease (aggravated by renal biofilms.)  I suspect that endothelial cells of capillaries are compromised by biofilm-derived endotoxins that ultimately contribute to apoptosis, decrease in capillary beds and elevation of blood pressure.  All of these assaults on endothelial cells undermine penile vasculature and contribute to ED.

Viagra Can Lead to Rosacea

Men taking Viagra or other PDE5 inhibitors typically have compromised vascular systems that are the basis for ED.  Increasing the response to NO in men with ED produces an increased risk of rosacea.  Withdrawal from PDE5 inhibitors stops the rosacea, which returns if the PDE5 inhibitor use is reinitiated.  Thus, the flush that is the goal of Viagra therapy, leaves some redfaced.

ref:
Ioannides, D. et al. (2009) Phosphodiesterase-5 inhibitors and rosacea: report of 10 cases. Br. J. Dermatol. 160: 719-20.

Thursday, October 15, 2009

Migraine Headache Diet

Simple Guidelines to Lower Chronic Inflammation and Avoid Pain

If I stick to this Anti-Inflammatory Diet and Lifestyle, I don’t get migraine headaches any more. I can still get a migraine, if I let myself get very dehydrated or drift into carbohydrate excess, but I am shocked when it happens. I can still enjoy chocolate and coffee. Avoiding the headaches is under my control and the diet is healthy and easy to follow.

Chronic Inflammation Is the Foundation for Migraine Headaches

The details and rationale for the Basic Anti-inflammatory Diet and Lifestyle are discussed in many articles on this blog. The guiding logic is that migraine headaches are based on chronic inflammation, although in each individual case there may be specific health problems that contribute and trigger migraines. If the chronic inflammation is removed, then migraines can’t happen or are reduced in frequency and/or severity.

Common Migraine Guidelines Point to Inflammation as the Problem

Feverfew is present on all of the lists of traditional treatments to avoid migraines. Extracts of feverfew contain parthenolide, a sesquiterpene lactone, that has been shown in mouse studies to inhibit activation of NFkB, the inflammation transcription factor. Stress reduction, acupuncture, etc. all point to vagal stimulation to reduce chronic inflammation. I would also recommend that migraine sufferers investigate vagal stimulation exercises to augment the basic diet and exercise to eliminate chronic inflammation.

Anti-inflammatory Diet in a Nutshell

  1. Vitamin D -- deficiency is common... even with adequate sun exposure
  2. Low carbs -- starch is hyperglycemic, grain gluten intolerance is very common
  3. Vegetable oils -- only olive oil is safe (trans fats are dangerous), butter is better
  4. Fish oil -- omega-3 oils can reduce chronic inflammation
  5. High fructose corn syrup -- eliminate all sources
  6. Saturated Fats -- safer than polyunsaturated fats, major source of calories

Typical Meals for a Healthy Head

  • Breakfast -- eggs, bacon, sausage, stewed tomatoes, cottage cheese, coffee, yogurt (low sugar, no HFCS) (avoid cereal, pancakes, waffles, toast, etc.)
example: scrambled eggs with sausage, yogurt (unsweetened, blended with fresh raspberries, strawberries or blueberries, sweetened with honey) coffee mocha
  • Lunch -- soup, salad, chicken, ham, tuna, vegetables, modest amounts of fruit, etc. (avoid bread, buns, potatoes, pasta, rice), keep the carbs to less than 50 grams
example: homemade chili with extra ham; thin sliver of toast loaded with feta cheese, broiled and drizzled with extra virgin olive oil; salad with peppers, tomatoes and cubes of jalapeno cheese, olive oil/vinegar, herbs/spices
  • Dinner -- fish, meat, vegetables, 50 grams of carbs (avoid grains)
example: broiled salmon with crushed pinenuts, garlic, butter and lemon; sauteed sliced zucchini/miniature squashes; wedges of small potatoes, microwaved ‘till soft and fried in light olive oil and butter; strawberries painted with melted dark chocolate

Why Conventional Diet Wisdom Gives You a Headache

The government food pyramid was designed by the food industry and was never supported by evidence from the biomedical literature. Research shows that saturated fats actually lower heart disease. Polyunsaturated fats in common vegetable oils are a major source of chronic diet-based inflammation. Starch/sugar raises triglycerides, not dietary fats. Grains are a major source of inflammation, because of the high incidence of gluten intolerance, the high content of hyperglycemic starch (even in whole grain breads, etc.) and in the support of gut biofilms based on Klebsiella, a contributor to Crohn’s and other autoimmune diseases. Blood lipid levels were not associated with heart disease and lowering these levels with statins does not improve health. Lowering inflammation uniformly improves health, as well as eliminating migraines.

Monday, October 12, 2009

Biofilm Transformation, Helicobacter, Klebsiella

Helicobacter pylori causes stomach cancer, but it feeds on hydrogen gas produced by Klebsiella pneumoniae in gut biofilms. DNA released by biofilm bacteria not only transfers antibiotic resistance, but it also provides protection against host antibacterial peptides, such a cathelicidins and defensins.

Exploding Labs

When I was working on host/pathogen interactions and plant disease resistance, I also became familiar with research on the formation of the plant equivalent of cancer, crown galls, and symbiotic bacterial nitrogen fixation. I mention this, because this also exposed me to the free-living bacterial nitrogen fixing system in Klebsiella and to the memorable urban legion of exploding labs. As the story goes, as bacteria convert atmospheric nitrogen gas into ammonia, nitrogen fixation, they use high energy electrons, e.g. from ferrodoxin, and lots of ATP, but they also produce hydrogen gas. In labs where they are researching nitrogen fixation, the excess hydrogen gas would accumulate on the ceiling until... boom! Now those labs are properly vented.

Helicobacter Uses Hydrogen as an Energy Source

Helicobacter pylori is considered the most common bacterial pathogen of humans and is the primary cause of ulcers and stomach cancer. H. pylori lives in the stomach by neutralizing stomach acid with ammonia. Another interesting ability of this bacterium is its ability to use hydrogen dissolved in circulating blood as an energy source. The high energy electrons from molecular hydrogen are transported to its electron transport chain, and the energy is used in membrane transport and ATP production. The circulating hydrogen is produced by gut bacteria.

Klebsiella Is not just a Soil Bacterium, Gut Gases

Klebsiella pneumonia is a lung pathogen and it also forms gut biofilms. Presence in the gut and the ability to produce hydrogen gas has some implications for hydrogen utilizing bacteria like H. pylori. Clearly, the stomach of someone with an abundant source of hydrogen fuel in their blood is a better target for H. pylori colonization. This explains why even at age 50, individuals who were exclusively breastfed have a lower incidence of H. pylori and stomach cancer, since even a single bottle of formula can shift an infant to adult, i.e. Klebsiella gut flora.

Klebsiella Needs Carbs to Produce Hydrogen

K. pneumoniae has been associated with Crohn’s Disease and Ankylosing Spondylitis. It grows in gut biofilms and produces pullulanase, an enzyme that can utilize the branched glucosides left over from the action of amylase on plant starch. So K.p. has an untapped food source and it needs lots of ATP to produce hydrogen gas. The nitrogenase needed for nitrogen fixation and hydrogen production is very sensitive to oxygen, so this means that K.p. needs a partially anaerobic environment and must get its energy from fermentation. Fermentation yields much less ATP than respiration using oxygen, which means that K.p. can only produce hydrogen with lots of glucose from starch.

Low Carb Diet Cures Crohn’s Disease

It turns out that the antigen causing Crohn’s disease is the pullulanse (with collagen mimetics.) As you should expect, it has a basic triplet. Eating a low carb diet reduces the flareups of Crohn’s disease, presumably by starving out the K.p.. It is interesting that nitrogenase is the antigen involved in Ankylosing Spondylitis.

Biofilms Promote Transformation and Antibiotic Resistance

Just as a footnote to the benefit of K.p. as a citizen of a biofilm community, H.p. should also live in those biofilms, since that is the source of the hydrogen it uses. Biofilms also stimulate the exchange of DNA, because the quorum sensing chemical signals trigger the release of DNA. The DNA is a component in the matrix that binds bacteria in the biofilm and can work in conjunction with bacterial acidic polysaccharides and host heparan sulfate. These acidic polymers tend to bind the basic antimicrobial peptides, e.g. defensins and cathecidins produced as a major non-adaptive defense against bacteria. Thus, the release of DNA triggered by quorum sensing, builds matrix, facilitates DNA transformation that is the foundation for the spread of antibiotic resistance in gut biofilms and provides resistance against antimicrobial peptides.

Tuesday, October 6, 2009

Cytstic Fibrosis Overproduces Tissue Transglutaminase and Contributes to Celiac

Tissue transglutaminase (tTG or TG2) is produced in excess in some diseases, such as cystic fibrosis, and contributes to inflammation and disease symptoms. tTG also readily moves in and out of cells by virtue of its basic triplet and when in the cytoplasm, tTG is ubiquinated and degraded by proteosomes. I have previously pointed out that internalization and proteosome degradation are also the initial steps in processing of proteins for presentation by the immune system and antibody production, i.e. turning a cellular protein into an autoantigen involved in autoimmune disease.
Here is an image of a computational protein model of tTG I drew with Chimera. I have highlighted the basic triplet to show its exposure to facilitate transport.

Oxidative Stress Alters tTG and Triggers Inflammation

A recent article also links tTG intracellular chemical modifications (SUMOylation), which are linked to oxidative stress, to activation of NFkB and inflammation. Thus, tTG is a major player in controlling cell surface interactions with potentially toxic materials such as polyglutamine-rich gliadin, as well as triggering inflammation in response to oxidation stress.

Cystic Fibrosis Causes Overproduction of tTG

When I read that cystic fibrosis results in an increase in the production of tTG in lungs, I immediately thought of the role of tTG as an autoantigen in celiac disease and the progression of celiac into Hashimoto’s thyroiditis, which has the same autoantigen, tTG. I suspected that the overproduction of tTG and inflammation in cystic fibrosis should increase tTG autoantibody production and tTG-mediated autoimmune diseases of celiac and Hashimoto’s thyroiditis.

Extra tTG Leads to Autoimmune Celiac

A quick PubMed search of CF and celiac, revealed a study of comorbidity between CF and celiac in Norway. Just as expected, the two diseases occur together with a frequency three times higher than predicted by coincidence. CF stimulated tTG overproduction was driving the development of celiac.

references:
Luciani A, Villella VR, Vasaturo A, Giardino I, Raia V, Pettoello-Mantovani M, D'Apolito M, Guido S, Leal T, Quaratino S, Maiuri L. SUMOylation of tissue transglutaminase as link between oxidative stress and inflammation. J Immunol. 2009 Aug 15;183(4):2775-84.

Fluge G, Olesen HV, Gilljam M, Meyer P, Pressler T, Storrösten OT, Karpati F, Hjelte L. Co-morbidity of cystic fibrosis and celiac disease in Scandinavian cystic fibrosis patients. J Cyst Fibros. 2009 May;8(3):198-202.

Monday, September 28, 2009

Paradoxical Inflammation

Anti-inflammatory Treatments Cause Inflammation in Some Diseases, e.g. Rosacea

I thought that the anti-inflammatory diet and lifestyle I outlined on this blog would be a general purpose starting point for the treatment of all diseases. Inflammation is the foundation for allergies, autoimmune diseases and cancer. Inflammation is a basic defense against infectious diseases and many tissues require signaling components integral to inflammation for their normal function, so it is possible to overdo anti-inflammatory treatment and produce immuno-suppression. But that is unusual. What I am talking about here is inflammation caused by vitamin D, omega-3 oils, potentially low carbs and inhibitors of NFkB, such as tumeric. This is Paradoxical Inflammation.

Rosacean Inflammation Is Paradoxical

The obvious example of a paradoxical inflammatory disease is rosacea. Rosacea seems to be a large group of diseases that manifest in facial inflammation. Excessive flushing of the face can become persistent and form pustules and swelling. The triggers for rosacean inflammation are legion and idiosyncratic. They include mundane social interactions, numerous foods, temperature extremes and, paradoxically, just about everything that I recommend to decrease chronic inflammation.

Bacteria in Tissue and Gut Biofilms Are Candidates

Why do otherwise anti-inflammatory foods and exercise make rosaceans red in the face? Even vagal stimulation that is uniformly calming to inflammation, can make a rosacean flush. This is very inconvenient. I can only invoke the typical players: cryptic bacteria, biofilms, vagus nerve stimulation and response, lymphocytes/macrophages, cytokines and neurotransmitters.

All rosaceans have demonstrated facial inflammation and have had long term exposure to antibiotics and NSAIDs. That combination suggests that bacteria have been transported from a leaky gut (NSAIDs) to the site of inflammation (the face). It is likely that cryptic bacteria inhabit the dermis near the blood vessels and resident lymphocytes/mast cells. This is also the location for axons from vagus nerves. Thus, vagus stimulation may result in the release of neurotransmitter acetylcholine to stimulate lymphocytes/mast cells with subsequent release of cytokines. In this case the cytokines are inflammatory.

Other sources of inflammatory cytokines are lymphocytes/mast cells activated by endotoxin release from cryptic bacteria triggered by immunological attack. In this case, the immunological attack can be initiated by disruption of the stasis invoked by the cryptic bacteria.

Activated Cryptic Bacteria Are Source of Inflammation

It is hypothesized that the cryptic bacteria remain in tissue, because they are able to induce a hibernation-like physiology in the tissue. Disruption of the hibernation would initiate an immunological assault. Disrupting agents typically include vagal stimulators, such as activators of the hot or cold sensors, e.g. capsaicin, castor oil or menthol. Interestingly, the cryptic bacteria require a residual level of inflammation to acquire nutrients from the host. Anti-inflammatories that inhibit NFkB may destabilize the bacterial/host interaction and result in an immunological attack on the bacteria. All of the attacks on the cryptic bacteria release inflammatory endotoxin.

Gut Biofilms Store Bacteria Recruited to Become Cryptic in Inflamed Tissue

During the course of the disease and following numerous antibacterial treatments, bacteria can be continually recruited from safe havens, such as gut biofilms. Antibiotic treatment of biofilms converts the biofilm community to antibiotic resistance through activated horizontal gene transfer. Moreover, harsh treatment of biofilm communities initiates shedding of bacteria that could migrate across the leaky gut adjacent to the gut biofilms and provide new emigrants into the inflamed face tissue. A likely resident would be Chlamydia pneumonia, which has been demonstrated to be carried by macrophages and offloaded at distant sites of inflammation.

How the Vagus Becomes Inflammatory

This brings up the question of why vagal stimulation shifts from anti-inflammatory to inflammatory in rosaceans. I don’t think that the vagus nerves change in either their activation or in the neurotransmitters that are released as a result of stimulation. This means that the cells that respond to the vagal acetylcholine must be changed. I think that the change is a depletion of Treg cells and the result is that acetylcholine receptors on the remaining T cells cause a release of inflammatory cytokines. These cytokines cause the release of NO by endothelial cells and vasodilation. Leaking of endotoxin from the resident cryptic bacteria causes persistent dilation and restructuring of the vasculature.

Helminth and Il-2 Therapy Reestablish Tolerance and Reverse Vagal Inflammation

Since I have been forced to explain paradoxical inflammatory diseases, I might as well speculate on exotic approaches that already suggest potential treatments. Ingesting parasitic worm eggs (helminth therapy) has proven successful in the treatment of inflammatory diseases such as asthma, allergies and IBDs. Interleukin 2 (Il-2), usually used as a complex with an anti-Il2 antibody, is also a productive treatment. In both of these cases, the treatment stimulates the proliferation of Treg cells, which appear to be deficient in many of the inflammatory diseases. These treatments should also lead to a lowering of inflammation in the gut and suppression of inflammation as a result of vagal stimulation. Inhibitors of acetylcholine receptors, e.g. scopolamine patches, might also be interesting to test to see if they inhibit rosacean flushes in response to typical vagal stimulants such as castor oil or menthol.

Addendum:  Another possibility associated with the heavy use of antibiotics by rosaceans is intestinal (biofilm?) candidiasis.  Yeast infections are common after prolonged antibiotic treatment.  Interestingly, Candida produces resolvins from omega-3 fatty acids and the resolvins suppress neutrophil activity that would attack the yeast.  Thus, many of the anti-inflammatory treatments would actually aggravate yeast infections and contribute to rosacea.  Treatment for candidiasis (keeping in mind that yeast may be protected by biofilms) helps many rosaceans.  Stripping biofilms may be useful if pro- and pre-biotics are used to displace Candida.

Thursday, September 17, 2009

Vagus Nerve Controls Gut Inflammation II

Inflammatory Mast Cells Silenced

In a previous article, I outlined the role of the vagus nerve in responding to infection/damage signals by producing signals that inhibit inflammation. In a recent article (ref. below), the role of the vagus nerve in gut inflammation was examined using real-time biophotonic labeling. Basically that means that a video camera sensitive to infrared can be used to detect infrared dyes produced when NFkB is activated -- the camera is able to visualize regions of inflammation in living mice. Using this technique, researchers were able to demonstrate that cutting the vagus nerve produced heightened inflammation in gut treated with an irritant. The vagus nerve appears to stimulate regulatory T cells that lower the activity of inflammatory cells.

Inflammation/NFkB Activation Visualized in Live Mice

The studies were performed in a mouse line constructed to express an infrared fluorescent protein in cells in which the inflammation transcription factor, NFkB, is activated. Mice of this strain were prepared with and without the vagus nerve intact leading to the intestines. The mice were then exposed to sodium dextran sulfate (DSS) to simulate inflammatory bowel disease symptoms.

Cutting the Vagus Nerve Permits Inflammation

Mice with intact vagus nerves exhibited much less inflammation in their gut than those without vagus innervation. The cut vagus experiments demonstrated that the vagus nerve was responsible for suppressing inflammation. Further experiments were performed to determine if the inflammatory and anti-inflammatory reactions could be transferred to other mice by transferring cells from the treated mice.

Regulatory T Cells (CD4+, CD25+) Block Inflammation

Transfer experiments showed that inflammatory T cells (CD4+, CD25-) from cut vagus, DSS mice would cause bowel inflammation in other mice, but that did not happen with the same type of cells from mice with intact vagus nerves. Further tests showed that either cutting the vagus or adding inflammatory T cells from a mouse with a cut vagus, reduced the population of regulatory T cells (CD4+, CD25+) in control mice treated with DSS. So, without the vagus stimulation, the regulatory T cell population declined in the presence of inflammatory signals.

Absence of Regulatory T Cells Can Explain Many Inflammatory Diseases

In many inflammatory diseases, e.g. celiac, Crohn’s disease, rosacea, there appears to be a deficiency of regulatory T cells. In the absence regulatory T cells, signals from vagus nerves will no longer produce anti-inflammatory suppression. In fact the same nerve signals may become inflammatory. This would explain why rosaceans will become inflamed by hot or cold stimulation that would normally lead to anti-inflammatory stimulation of regulatory T cells. Similarly, capsaicin, castor oil and menthol, which normally produce an anti-inflammatory response, produce inflammation in rosaceans.

[Vagal stimulation exercise links:  here and here.]

reference:
O'Mahony C, van der Kleij HP, Bienenstock J, Shanahan F, O'Mahony L. 2009. Loss of vagal anti-inflammatory effect - in vivo visualization and adoptive transfer. Am J Physiol Regul Integr Comp Physiol. Aug 12. [Epub ahead of print]

Thursday, September 10, 2009

Watson Makes Us Sick

Common Textbook: Molecular Biology of the Cell, Lacks Coverage of Critical Molecular Interactions

One of the major reasons why healthcare practitioners are unable to cure diseases, is that their molecular view of disease is outdated. Their models of key signaling interactions lack critical molecules and fundamental types of chemical bonds are ignored.

The Major Textbook Used to Train Medical Students Lacks Essential Cellular Interactions

The most pervasive and perhaps the best text book on cell biology, The Molecular Biology of the Cell, first authored by James Watson, lacks a discussion of the bonding of aromatic amino acids (tryptophan, tyrosine, phenylalanine) with basic amino acids (arginine, lysine), carbohydrates, and aromatic phytochemicals, e.g. plant antioxidant or alkaloids. As a result, medical school graduates lack familiarity with the prominent interactions that dominate disease and drug treatments.

Hydrophobic Bonding to Aromatic Amino Acids Dominates Cell Molecular Biology

The dominating significance of aromatic hydrophobic bonds is the strength of these bonds, ca. 20 kcal/mol versus, the commonly considered weak bonds (hydrogen, ionic) at 1-2 kcal/mol, the same as the kinetic energy of water at body temperature. Thus, structures, such as alpha helices and beta sheets of proteins, require multiple weak bonds to be stable, but the hydrophobic bonding of tryptophan to a single arginine draped across its surface is stable.

Examples:

Tryptophan is the most highly conserved amino acid in protein structures (more than cysteine forming disulfide bonds!). This means that tryptophan is the most important amino acid in protein structure, and probably determines how proteins fold.

Carbohydrates have hydrophobic faces to their ring structures and typically bind to lectins, glycosidases and glycanases, via the hydrophobic surfaces of tryptophans or tyrosines in active sites.

Transport of proteins into nuclei is by binding of arginine or lysine residues of nuclear localization signals (basic quartets or neighboring basic pairs) to tryptophan hydrphobic residues projecting from the surface of LRR (leucine-rich repeat) importin molecules.

Heparin binds to basic amino acids in proteins via hydrophobic interactions. Aromatic dyes, such as berberine, bind to heparin through similar hydrophobic interactions.

Heparin binds to the basic amino acids arrayed in stacks of amyloid molecules and berberine blocks these interactions. Congo Red, a diagnostic dye for amyloids, is an aromatic molecule. Similar interactions occur with prions and the plaques of atherosclerosis.

Acidic polysaccharides form the matrix of biofilms. Heparin and nucleic acids can also serve this function. PEG, which disrupts hydrophobic interactions, can be used to disrupt binding of proteins to heparin, nucleic acids and biofilm polysaccharides.

Heparin binding mediates the interaction between most growth factors or cytokines and their cell surface receptors.

Many viruses and bacteria bind to cell surfaces via heparan sulfate.

LDL binds to LDL receptors via heparan sulfate. ApoE in diagram (arg and lys in blue, hydrophobic in pink.)

Antimicrobial peptides, e.g. defensins, have groups of basic amino acids. Heparin binding domains excised from proteins as peptides are antimicrobial.

Stomach proteases cleave around heparin-binding domains to produce antimicrobial peptides. Intestinal proteases cleave within heparin-binding domains and inactivate bacterial and viral agglutinins.

Life starts with heparin, i.e. heparin is leaked into fertilized eggs to remove the small, highly basic proteins used to package the sperm chromosomes.

Heparin is injected experimentally into nerves to silence IP3 signaling based on the binding of the hydrophobic face of inositol to basic amino acids, similar to heparin binding domains, of the IP3 receptors located on the surface of the ER.

The cytoplasmic domains of some receptor proteins have basic regions that interact with the IPs of the membrane surface, but subsequently serve to transport membrane-derived vesicles to the nucleus via importin carriers.

Heparin/heparan sulfate proteoglycans are secreted bound to basic molecules such as polyamines or histamine.

Heparan sulfate proteoglycans are continually secreted and taken up with a half life of six hours. This circulation is a major transport system of most cells. Amyloid/heparan aggregates on the surface of nerves and gliadin/tTG/antibody/heparan complexes on endocytes (celiac) may poison this system.

All allergens and autoantigens have a triplet of basic amino acids that may be involved in the initial aberrant presentation of these antigens as a result of the internalization by the carbohydrate-binding domain of mannose receptors on the surface of inflammation-stimulated immune cells.

Many neurotransmitters bind to their receptors via hydrophobic, aromatic interactions. These same receptors interact with hydrophobic, aromatic phytochemicals, e.g. “anti-oxidants.” Many spices, herbs, alkaloids and other phytochemicals have their abundantly complex interactions via these mechanisms.

Crystals of the tryptophan repressor involved in binding tryptophan and altering the expression of genes involved in tryptophan synthesis, shatter in the presence of tryptophan -- the tryptophan (yellow) strongly binds to basic amino acids (blue) in the tryptophan-binding domain of each repressor protein in the crystal and alters its shape.

Wednesday, September 2, 2009

Cure for Inflammatory Diseases

Destabilizing Gut Biofilms by Simple Remedies

The intercommunication between the gut flora biofilms, the cells of the immune system juxtaposed with the intestinal endothelium and cryptic bacteria/tissue biofilms produces stable chronic inflammatory disease. Disrupting the gut biofilms may permit a resumption of effective immunity and remission.

Disrupting Biofilms to Treat ASDs

Cristian Stremiz brought to my attention the work of Dr. Anju Usman on the treatment of autism spectrum diseases by attacking inflammatory gut biofilms.

A Panacea

This approach, based on the use of common food components, to attack the gut biofilm matrix of acid polysaccharides, cations and proteins, should be generalizable to most inflammatory diseases. The interventions also provide facile explanations for the utility of numerous traditional cures such as vinegar, fiber, glucosamine, pectin, whey, proteases and probiotics.

Cures Act via Gut Flora Biofilms

There are numerous anecdotal reports of traditional, simple remedies working for essentially all diseases. Tantalizingly, many of these diseases are also occasionally successfully treated with antibiotics. The common thread seems to be the involvement of inflammatory gut flora and perhaps cryptic bacteria residing in the tissues displaying symptoms. Glucosamine works sometimes for arthritis, but little of the glucosamine that is eaten reaches the blood stream and the aching joints that seem to become less inflamed. Vinegar, pectin, and fiber have also been attributed with curative powers, yet none is likely to impact inflamed joints directly. Impacting gut biofilms is much easier to explain.

Biofilms of Bacteria Attached to Acidic Polysaccharides and Divalent Cations

Acidic polysaccharides are produced by bacteria and divalent cations cross-link the polysaccharides into a matrix. The bacteria have agglutinins to attach to the matrix. Gut pathogens produce agglutinins that they use to attach to the heparan sulfate (HS), the predominant acid polysaccharide of the intestinal epithelium. Mast cells of the intestines normally release heparin, which is a mixture of HS fragments, to stick to the agglutinins and block attachment to the HS of the epithelium. Numerous bacterial species form complex communities on the polysaccharide matrix and prevent access by antibiotics. Biofilms require 100X the antibiotic concentrations and a cocktail of different antibiotics to eradicate the bacteria.

Biofilms Disrupted by Competing Acid Polysaccharide Fragments and Cation Chelators

The Achille’s heal of biofilms is the ionic interaction between the acidic polysaccharide and divalent cations. This interaction can be attacked by both small fragments of similar acid oligosaccharides, by organic acids that can solubilize the cations, e.g. acidic acid in vinegar, or by chelators, such as EDTA. All of these treatments can remove the calcium, magnesium and iron that is essential to the matrix. Small molecules, such as glucosamine, chondroitin sulfate fragments, heparin, and pectin, can disrupt biofilms. Molecules that bind to heparin or nucleic acids, e.g. berberine, quinine (tonic), methylene blue, should also be effective in disrupting biofilms. [Note that the similarity between amyloid production and biofilms, means that treatments should overlap.] Lactoferrin is effective, since it both binds iron and binds to acidic polysaccharides via its heparin-binding domains.

Proteases Cleave Agglutinins

Stomach proteases, e.g. pepsin, specifically cleave proteins to release heparin-binding, acidic polysaccharide-binding domains that inhibit biofilm production in the stomach. Subsequently, the basic, antimicrobial peptides and agglutinins are cleaved by proteases, e.g. trypsin, that hydrolyze the binding domains. Eating proteases, such as nattokinase present in fermented soybeans, dissolves intestinal biofilms by attacking the agglutinins. The pathogenic E. coli and avian H5N1 also have these agglutinins. It is, therefore, wise to avoid establishing gut biofilms that can immobilize pathogens.

Probiotics Protect Against Biofilms

Resident gut bacteria that produce organic acids, e.g. lactic acid or acetic acid, provide protection against biofilm formation. Examples are the bacteria present in common forms of fermentation and food preservation, e.g. Lactobacillus sp., and the bacterium present in exclusively breastfed babies, Bifidobacter sp. Formula fed babies rapidly develop inflammatory biofilms, which explains their high rates of intestinal and respiratory diseases, as well as increased rates of inflammatory diseases.

Biofilm Inflammation Results in Inflammatory Bowel Disease, etc.

Gut biofilms support system-wide chronic inflammation that leads to allergies, autoimmune diseases, degenerative diseases and probably cancers. This attach on the gut also produces a leaky gut that supplies the bacteria that a moved by macrophages of the gut to all parts of the body. This may be how Chlamydia pneumoniae colonizes sites of inflammation throughout the body.

Attacking Gut Biofilms Is the First Step in the Treatment of All Inflammatory Diseases

Many inflammtory diseases, e.g. chronic lyme disease, rosacea, may be refractory to treatment with antibiotics, because of the reservoir of bacteria in gut biofilms. Attacks on gut biofilms with relatively non-intrusive treatments, such as vinegar, EDTA, lactoferrin and proteases, may lower the total resident pathogen load and make subsequent antibiotic treatment more effective.

Tuesday, August 18, 2009

Anti-inflammatory, Gluten-Free Diet for Celiac

Low Grain Is Good for Everyone

I don’t think that I have an intolerance for grain, i.e. a gluten sensitivity, but it is so common and the biochemistry is so obvious, that it is only prudent to avoid wheat and related grain products. A low or gluten-free diet is also similar to the other common healthy diets, e.g. low carb and anti-inflammatory.

Gluten-free diets came to my attention recently in two ways. First, I saw Food, Inc., a documentary movie about abuses by multinational food processors. After that movie, I felt like I was a goose being readied for foie gras. Second, was a newspaper article on the expense of a gluten-free diet and the challenges of avoiding gluten.

I haven’t had to worry about wheat contaminating my diet, but I am sympathetic to the celiacs that I know who have to labor with a sloppy and exploitative food industry that uses the cheapest ingredients to compose the processed foods that are consumed in modern diets -- processed foods are complex blends of many different potential allergens from innumerable sources throughout the world.

A Celiac Diet Is Good for All
Fortunately, the answer to pervasive gluten is just a modest modification of the basic anti-inflammatory diet that I recommend on this blog. Unfortunately, people who have already developed gluten intolerance, have probably had the problem for years before diagnosis and that means that their intestines have already suffered major physiological alterations and they have problems absorbing nutrients and vitamins. Celiacs also, because of their chronic inflammation and autoimmunity, tend to readily develop food allergies and other autoimmune diseases. The recommended anti-inflammatory diet will help to avoid celiac, put celiacs into remission and avoid development of subsequent allergies and autoimmune diseases.

Vitamin D Is Usually Deficient (and a source of inflammation)
The basic anti-inflammatory diet starts with a return to optimal vitamin D with the use of an initial blood test, followed by high level supplements to reach a suitable level and then maintenance with D3 supplements of usually 2,000-5,000 IU per day. Depending on the D3 supplement, vitamin A will also need to be supplemented, because it interacts with vitamin D. Remember that sunshine is only effective in producing adequate vitamin D if you do not suffer from chronic inflammation. I would assume that all celiacs tend to be vitamin D deficient.

A Low Carb Diet Is Easier for Celiacs
The next component of the basic diet is low carbohydrates, that means a minimum of high glycemic foods, which means to avoid sugar and starch, do not cook vegetables more than necessary and don’t over-chew your veggies. This is good for celiacs, because it reduces the need for common grain foods that no one should eat: bread, cereal, pasta, etc. Everyone should lower their consumption of these wheat products in solidarity for celiacs and for general good health. Cereal is a very bad idea for children!

Most Vegetable Oils Are Unhealthy
Most vegetable oils contribute substantially to world-wide inflammation and celiacs don’t need the added burden of inflammatory omega-6 vegetable oils. Only olive oil and butter should be used. Saturated fats are safer than typical polyunsaturated vegetable oils.

Eat Wild Fish or Tons of Fresh Flax
Most people eat too little omega-3 long chain fatty acids, since these are most abundant in fatty fish, such as wild salmon (farmed fish are fed corn and have reduced omega-3 and increased omega-6 fats.) Few vegetable sources are available, since the omega-3 fatty acids are unstable and present in leaves rather than seeds. Flax seeds have short chain omega-3 fatty acids and must be freshly ground and consumed by the cupful, because the conversion to the long chains, in which they are useful, is very inefficient. Most celiacs will need to use fish oil (or krill oil, if fish is not tolerated) supplements (4-8 EPA/DHA capsule per day taken in a meal rich in fats for bile uptake) to balance the ubiquitous inflammatory omega-6 in their diets.

Grassfed Meat/Eggs Are Your Friends
Celiacs should seek out grass/pasture fed meats, eggs and wild caught fish. Corn-fed animals have higher levels of omega-6 fats and these contribute to dietary inflammation. Celiacs can usually eat meat and fish and these are very healthy foods. Red meat was not shown to contribute to degenerative diseases, it was the high carbs eaten with the meat that produced the inflammation that contributed to heart disease. (Remember that statins only decrease cardiovascular disease because they inadvertently lower inflammation, not because they lower serum lipids, LDL.)

No, No’s: HFCS and trans fats
High fructose corn syrup and trans fats are inflammatory and unhealthy for anyone, and should be avoided as much as wheat gluten. Fruits should be eaten as seasoning, since their fructose is not healthy and they also contain ample sucrose.

Most People Would Be Healthier on a Celiac Diet
The anti-inflammatory diet proposed here for celiacs should be uniformly healthy, since it provides optimal vitamins (D, C, B12, etc.), low starch/sugar/carbs, an optimal omega-3 to -6 fatty acid ratio, increased meat and saturated fats, and avoids HFCS and trans fats. The only major adjustment for celiacs would be avoidance of individual food allergens, more attention to vitamin supplements to compensate for poor absorption and replacement of wheat by rice, potatoes, etc. The low carbohydrate nature of the diet makes it more approachable, since typical carbs, such as bread and cereal are avoided and replaced with meat and vegetables.

I look forward to advice and suggestions from readers who have experience with gluten-free diets.

Sunday, August 16, 2009

Recombining H1N1 and H5N1 Is Very Scary

Avian Flu Acquired a Basic Internalization Domain in the 1990’s

Avian flu was simply for the birds until its hemagglutinin (the H or H5N1) acquired an extra four basic amino acids that provided another way into human cells.

Basic Amino Acids Accumulate in the Hemagglutinin

During the early 1990’s isolates of avian flu, H5N1 started to appear that eventually developed six basic amino acids in a stretch about 340 residues from the amino terminus. These basic amino acids are thought to be an adaptation to decrease inactivation by a host protease.

H5N1
~PQRE TRGLFG~ ABB88379 Mexico 1994
~PQRK TRGLFG~ ABQ84472 Italy 1993
~PQRK ETRGLFG~ ACH88842 USA 1993
~PQRKRKRKTRGLFG~AAC58990 Mexico 1995
~PQRE RKKRGLFG~ ABQ84473 Italy 1997
~PQRERRRKKRGLFG~ AAD37782 China 1996
~PQRK RKTRGLFG~ ACL79965 Mexico 1994
H1N1
~PSIQ SRGLFG~ AAF87275

The red area is the region that has accumulated the basic amino acids (R and K). Note that the novel H1N1, does not yet have this region.

The New Basic Region Looks Like an Internalization Signal

Those who have followed this blog know that I have an interest in heparin binding domains, groups of basic amino acids (K for lysine and R for arginine) of proteins that bind the common acidic extracellular polysaccharide heparin. Most recently I have been focusing on unusual triplets of basic amino acids that are found in the proteins of allergens and autoantigens. These basic triplets are similar to the basic quartets that are used as signals to move proteins from cytoplasm into the nucleus of cells, i.e. the nuclear localization signal (NLS).

Basic Sextet for Internalization and More

The newly evolved basic sextet, RRRKKR, should be readily transported into cells by the mannose receptor and then taken into the nucleus, because it would also act as a NLS. This should also mean that the new H5N1 viruses with this hemagglutinin should attach to numerous cells of the immune system and potentially transported to other areas of the body.

Is this Dangerous?

I don’t know what the likelihood of recombination between H5N1 and H1N1 is if a bird, pig or human is infected with both nor is the impact of acquisition of the basic sextet by H1N1 on virulence known, but the acquisition of the basic sextet occurred at the same time that H5N1 moved from birds to people and became lethal.

Basic Sextet May Explain New Entry for H5N1

H5N1 has recently been found to infect tissue that lack the sialic acid sugars that are the typical target for avian flu. The new targets are not known. I would start to suspect the mannose receptor that I have postulated to be involved in initiation of allergy and autoimmunity.

Friday, August 7, 2009

Cause of Autoimmunity and Allergies

Inflammation-Induced Presentation by Mannose Receptor

Speculation on how innocuous proteins become the targets of our immune systems, and result in allergies, asthma, celiac, arthritis, lupus, and other inflammatory autoimmune diseases.

Inflammation

It all starts with chronic inflammation. In most cases diet is the predominant source of inflammation, but infections (bacterial, viral, fungal) may also contribute. Inflammation sets the stage for faulty processing of proteins at the focal location where lymphocytes and antigen-presenting cells are congregating.

Antigen Presentation

At this point a major mistake occurs. Cells that have been alerted to danger by inflammatory cytokines, start to internalize and process proteins in the vicinity, so that peptide fragments of the “antigens” can be displayed on their surfaces in the clutches of major histocompatibility complex proteins. The problem arises when self proteins are internalized, processed and displayed as candidate peptides.

Basic Triplets of All Allergens and Autoantigens

I have looked at dozens of allergens and autoantigens, and they all have one peptide sequence in common, a triplet of basic amino acids. The impetus for this article was finding this morning that one of the autoantigens for Hashimori’s thyroiditis is thyroglobulin, the serum carrier of thyroid hormones. I checked the sequence of thyroglobulin and it has two of the rare basic triplets.

Thyroiditis Autoantigen Is Thyroglobulin

I checked the Pubmed literature to see if thyroglobulin is naturally taken up by cells, since I have been trying to figure out the receptor for basic triplets. What I found was an article on the binding of thyroiditis autoantigens to mannose receptor. The idea of the paper was that the autoantigens in this case were heavily glycosylated and maybe the mannose receptor that is involved in antigen presentation of glycosylated antigens, would bind the selected autoantigens as well. I didn’t get much past the title of the paper.

Candidates for Allergen/Autoantigen Receptor

What I put together was the fact that antigen presenting cells use mannose receptor to internalize antigens. This places this receptor in the right place and the right time to be a receptor for basic triplets. But what would a basic triple binding protein domain look like and could mannose receptor be a candidate?

Structure of Thyroglobulin

I downloaded a structure for mannose receptor and began looking for a surface region that would bind carbohydrates, aromatics and basic amino acids. The critical amino acids in all of these cases are aromatic amino acids, phenylalanine, tyrosine and tryptophan. Tryptophan is at the heart of most carbohydrate binding proteins. Since the mannose receptor is a member of the carbohydrate-binding lectins, I expected to find tryptophans on the surface of the mannose receptor. I just looked for the tryptophan that binds the carbohydrates. It was exactly as I predicted. The mannose receptor should be able to form very stable tryptophan/arginine-like ladders with basic triplets.

I made a figure of the mannose receptor bound to a carbohydrate (red and grey). One of the exposed tryptophans (yellow) is bound to the carbohydrate. Several other tryptophans could be exposed and oriented toward a basic amino acid spread over the surface of the tryptophan in place of the carbohydrate. A similar kind of structure is used by importin to transport proteins with nuclear localization sites (NLS, basic quartets) into the nucleus. Many proteins with NLSs are also autoantigens, e.g. lupus.

I think that the peculiar circumstances that lead to allergy and autoimmunity result in the binding of self-proteins or allergens to mannose receptor and result in antibody production.

Why the Mannose Receptor?

Why does the mannose receptor make mistakes? The exposed tryptophan may also bind numerous plant products. In fact, the phytochemicals, e.g. alkaloids, flavonoids and terpenoids, are an abundant and varied group of chemicals that would bind to the exposed tryptophan of the mannose receptor and compete for binding with basic triplets. Protection offered by plant “anti-oxidants” may be due in part to this activity.

Wednesday, August 5, 2009

Inflammation and Vitamin D Deficiency

Does Dietary Inflammation Reduce Skin Production of Vitamin D?

The media discovered the vitamin D deficiency pandemic last week. Amazingly researchers were recorded on camera saying that the D deficiencies are caused by insufficient exposure to ultraviolet in sunlight and inadequate consumption of vitamin D-laced milk. Have all of these people been avoiding the biomedical journals?

Have they noticed that my tan improved since I started eating anti-inflammatory?

Let’s shine some sunlight on these knowledge deficiencies:
  • Serum vitamin D levels have been dropping (as chronic inflammation has been increasing) over the last three decades -- has something changed in our diets?
  • Vitamin D deficiencies occur globally (not restricted to Northern latitudes or winter) -- related to diet?
  • Women are more vulnerable, because of cultural modesty in some countries, but males are still D-deficient.
  • A subset of people exposed to ample sunshine are still D-deficient.
  • Vitamin D deficient individuals also have elevated TNF.
  • Vitamin D deficiency and inflammation are risk factors in the same diseases.
It seems that the simplest conclusion is that chronic inflammation leads to vitamin D deficiency, even though vitamin D deficiency may also contribute to inflammation.

This also probably means that chronic inflammation makes it harder for skin to produce vitamin D during exposure to sunlight.

One would expect those who are inflamed to get sunburned more readily and people who eat plenty of omega-3 rich seafood probably produce more vitamin D, even if they are not in the sun as much.

Inflammatory starvation (or American fast food) diets high in starch and omega-6 vegetable oils, should produce vitamin D deficiency even on the Equator.

We should not be surprised that inflammatory degenerative diseases are associated with vitamin D deficiency. It would be interesting if vitamin D supplementation to eliminate deficiency, reduced inflammation and reversed degenerative disease.

Do statins reverse vitamin D deficiencies (and improve tanning) as they lower inflammation? [Statin lowering of LDL is unrelated to reduction in cardiovascular disease. Only the anti-inflammatory side-effect is important.]

Does NFkB activation (inflammatory signaling) inhibit vitamin D receptor activity and vice versa?

You can forget all of this confusion, if you just stick with an anti-inflammatory diet (that includes vitamin D supplements) and exercise frequently in the great outdoors.

Sunday, August 2, 2009

Brilliant Blue Brains and Spinal Cords

Hibernation-Suppression and Trauma-Induction of Inflammation

Inflammation/hibernation is a complex story at the foundation of chronic diseases. Inflammation is the common thread -- activation of the inflammation transcription factor NFkB.

Trauma Causes Life-Threatening Trauma

Trauma, everything from a bee sting to a horrific traffic accident that causes head and spine injuries, results in initial tissue damage and subsequent inflammation damage. The inflammatory response to punctures and abrasions is usually appropriate and self-limiting. The immune response to serious injuries is frequently more life-threatening than the initial damage.

Transplanted Organs Suffer from Inflammation

Organs removed for transplantation are subjected to a certain amount of necessary trauma and oxygen deprivation. If the organ was simply popped into a waiting recipient biochemically unaware of the process, the initial damage would be readily repaired in its new home. Unfortunately, some of the organs overreact and become damaged by their own immune/inflammatory reaction to the surgery.

Hibernation Reduces Trauma Inflammation

Organ transplants between animals that are hibernating, are much more successful, because the damaging inflammation is suppressed. Hibernation in animals or in human organs can be induced by the use of opioid peptides, e.g. DADLE, and subsequent surgical procedures are more successful. Hibernation also provides protection against experimental stroke. Apparently, the activation of the opioid receptor suppresses activation of NFkB and avoids inflammation.

Opioids and Steroid Hormones Block NFkB Activation and Inflammation

Steroid hormones can also provide protection against inflammatory damage resulting from head trauma. Thus, the ubiquitous steroid receptors may also block NFkB activation and inflammation.

Trauma Releases ATP that Triggers P2X7 and NFkB

Extracellular ATP can activate NFkB activity and inflammation, and ATP accumulation at trauma sites may be particularly dangerous for spinal injuries. Inhibitors of ATP binding to the purinic receptor P2X7, block inflammation and provide dramatic improvement in the return of function in animal models of spinal injuries. Most of the common inhibitors of P2X7 signaling must be injected directly into the traumatized tissue to block inflammation, because they can’t cross the blood-brain barrier. An exception is Brilliant Blue G.

Brilliant Blue G Blocks Trauma Inflammation

Brilliant Blue G, a.k.a. Coomasie Brilliant Blue, should be very well known to molecular biologists, because it is the commonly used stain for proteins separated on SDS-PAGE gels. I used that dye literally thousands of times to stain gels and I even tried it to stain the extracellular matrix surround cartilage-secreting cells, chondrocytes, grown in culture. I have included one of those pictures just for old times sake.

BBG can be injected IV into mice and the result is amazing. Not only do the mice become blue, but they recover much better from experimental spinal trauma. BBG in the blue mice blocks inflammation due to the surge in tissue ATP and the mice heal their trauma and regain function.

It would be amazing if BBG worked on people with spinal injuries. I expect the rapid development of a suitable drug to help spine and head trauma patients.

Can Manipulation of Hibernation Cure Chronic Diseases?

A big question is whether or not similar drugs might be used to block inflammation that supports cancer and other forms of chronic illness. Alternatively, in some instances the problem is that bacteria are suppressing local inflammation and inducing tissue hibernation to produce chronic illness. Under these circumstances, the induction of local inflammation or elimination of hibernation may make the bacteria vulnerable to attack.

references:
Borlongan CV, Hayashi T, Oeltgen PR, Su TP, Wang Y. Hibernation-like state induced by an opioid peptide protects against experimental stroke. BMC Biol. 2009 Jun 17;7:31.

W. Penga, M. L. Cotrinaa, X Hana, H Yua, L. Bekara, L. Bluma, T. Takanoa, G.-F. Tiana, S. A. Goldman and M. Nedergaard. 2009. Systemic administration of an antagonist of the ATP-sensitive receptor P2X7 improves recovery after spinal cord injury. PNAS 106:12489

Saturday, July 25, 2009

National Healthcare and Diet

Barack Obama's Anti-Inflammatory Breakfast Pulpit

Trying to improve the health of Americans by taking the advice of the healthcare industry is futile. Barack Obama must set the example of a healthy lifestyle.

The solution is to prevent the diseases that the healthcare industry is using as a source of profits and that means fundamentally changing diets and lifestyles. It has taken three decades to attack health by shifting from meat protein and saturated fats to starch, high fructose corn syrup and polyunsaturated (omega-6) vegetable oils. It will take a sustained, personal effort by President Obama to guide a relatively rapid return to a healthy, anti-inflammatory diet.

All of the degenerative and autoimmune diseases that form the core of current healthcare diagnosis and treatments are rooted in an inflammatory diet and lifestyle dictated by agribusiness and uninformed by science. The media nags about people eating too much and exercising too little. Our obese population is encouraged to lose weight by eating less. Food fat is demonized. Statins are prescribed with religious zeal to lower blood lipids to reduce cardiovascular disease. All of this “health” advice is wrong and unsupported by the biomedical literature.

It is about time for an authority figure, i.e. The President of The United States of America, to use some leadership skills and teach people how to eat and live. That would be much easier than trying to get doctors to order fewer tests from their own medical test companies or order fewer images through their own imaging companies. Are the pharmaceutical companies going to suggest that their pills should cost less and be pushed less frequently? Will the insurance companies step out of their lucrative middleman role between doctor and patient? It is more reasonable for The President to use his bully pulpit to change the U.S. diet and lead us back to health.

All that is needed is for President Obama’s image at the breakfast table to be judiciously used by a private, non-profit organization on a website:


This would provide an opportunity for the President’s health agenda to be presented to the world through his prescription (and explanation of health benefits) for each morning meal:

Slow food
Local food
Low carbon footprint
Low carbs
High omega-3 to -6 fatty acid ratio
Praise eggs and saturated fats
Warn about grains
Vitamin D deficiency
No HFCS
No trans fats

Each meal would come with a source and description of each ingredient and its benefits. YouTube videos of the meal preparation could show the techniques needed. Occasionally The President could be seen enjoying the meal and animation could be used to show why hypoglycemic ingredients were used. Maybe The President would show solidarity to the diabetic victims of industry food fights by getting his finger pricked for a blood sugar test after a meal. It would be good to see him complain about the inaccuracy of several different typical meters. Imagine the close-up of all of the lancet marks needed to convince him that the readings are making sense!

This single approach would cost the American people nothing to implement and would save billions of dollars in healthcare expenses over a few years, as citizens of all socio-economic classes changed to diets that were less inflammatory, and degenerative and autoimmune diseases quickly declined.

Tuesday, July 21, 2009

Low Carbs Lower Triglycerides

Blood Triglycerides Depend on Diet Carbs, not Fats

I don’t know why the medical community keeps pushing the low fat diets to modify blood lipids. The medical literature shows that a low fat, high carbohydrate diet (more than 50 grams of starch/sugar in a meal) produces high triglycerides, and a low carb diet ( less than 50 grams per meal), regardless of saturated fats and meat, produces lower triglycerides.

In seems reasonable that fats in the diet should mean fats, triglycerides, in the blood, but that ain’t so. It’s the rise in blood insulin in response to a rise in blood sugar due to high glycemic index foods in a meal, that yields high blood triglycerides.

The low carb, low triglycerides facts of life were brought to may attention by my wife’s blood chemistry. She knows better, but refuses to follow my preacherly suggestions about an anti-inflammatory diet. She follows most of the use of supplements and prohibitions about vegetable oils, but loves carbs. She eats two thick slices of bread in a sandwich and I cut a thinner slice and eat mine open-faced. I can’t eat her pancakes or French toast. Ok, I eat lots of dark chocolate, but I don’t have flavored syrup in my lattes.

She was stressed by a high triglycerides (292 mg/dl) in her blood work and her doctor wanted to start her on meds. I was sympathetic. Not really. I actually said, “carbs, carbs, carbs,” until she threatened me. I nagged heavily to just junk the junk and wait on the meds. She started counting grams of carbs with each meal. Actually she tried to average over the whole day, I nagged, she finally relented and stuck to the plan. No more than 50 grams of carbs in any meal. (I think 30 grams, would actually be better.)

One month later, her blood work showed triglycerides down 57% to 127 mg/dl. Individual results may vary, but this is pretty straightforward. Carbs are important -- avoid them. The food pyramid is for chumps. The highest glycemic food you will encounter is a French baguette (95), compared to pastas in the 30s or table sugar at 70.

The facts are:
  • Saturated fats in meat are no big deal, and much better than...
  • Vegetable oils (most are rich in omega-6 oils, except olive oil) are inflammatory.
  • Fish oil (omega-3 DHA/EPA) is anti-inflammatory (unless there is also too much vegetable oil.)
  • Starch and sugar increase blood triglycerides and are only needed to gain or keep body fat. Losing weight is much easier without starch/sugar.
  • Most people are deficient in vitamin D and C (even with plenty of solar exposure).
  • High fructose corn syrup is ten times more damaging than starch/sugar, and is especially bad for diabetics. It doesn’t raise blood sugar as much as starch, it just causes damage, e.g. glycation, at an extraordinarily high rate. It also ages skin by accelerating cross-linking of collagen. Very bad stuff even in fruit juices.
  • Eating plant anti-oxidants protects unsaturated fats as they pass through the oxidizing environment of the stomach, so nuts are better unroasted and eaten with veggies.

Autoimmunity, Allergies and Basic Triplets

Basic Triplets Only in Primate Forms and Allergens

I have examined the proteins, autoantigens, that are the focus of a dozen autoimmune diseases and a similar number of allergens. All of these proteins have basic triplets that I previously associated with heparin-binding. I have had two recent revelations. First, these triplets appear to not be involved with heparan sulfate proteoglycans for internalization. In fact, HSPGs don’t appear to be involved, even though the process is inhibited by heparin. So this suggests a transport system, perhaps using the LDL receptor or the mannose-6-phosphate receptor, (or a protein with an acidic triplet or quartet.)

The second interesting observation is that the mouse, cat, dog, etc. versions of the human autoantigens lack the basic triplets. This suggests that these diseases cannot occur in non-primates by the same mechanisms. So what is the role of these basic triplets in humans? They didn’t evolve to cause problems under unusual conditions of chronic inflammation, so what is their adaptive advantage?

I think that the answers to these questions could yield the identification of a fundamental cellular transport process and associated cellular phenomena that could be worth a Nobel prize in medicine and it could be unravelled by a group of high school kids doing some straightforward bioinformatics.

Oh. I just remembered that IL-1 beta, the inflammatory cytokine, has a basic triplet. I just checked NCBI, and that basic triplet is found in all of the mammalian IL-1 betas. Oddly, the soluble receptor for IL-1 beta has an acidic quartet. I looked up the protein structure of the IL-1 beta bound to the IL-1 receptor and did a quick illustration using Chimera:

I put the surface on the IL-1 beta and left the IL-1R wrapping around it in as a ribbon. The basic triplet of IL-1 beta is in blue and the acidic quartet of the receptor is in red. One of the basic amino acids is stabilized by hydrophobic bonding over the face of a tyrosine, in yellow. Clearly, there is a simple ionic, plus-minus charge, bonding between the basic and acid amino acids. I don’t normally see this interaction between basic heparin-binding domains and other proteins. Other proteins that bind to heparin-binding domains use aromatic amino acids to make hydrophobic bonds with the hydrophobic arms of the basic amino acids, e.g. importin and nuclear localization signals or tryptophan/arginine ladders. The use of simple acid-base connections (with the projection of each stiffened by adjacent prolines) shows that this interaction is selected to be irreversible.

I don’t know all of the ramifications of basic triplets, but they are very important and are the basis for most modern allergic and autoimmune diseases.

Friday, July 17, 2009

Celiac Causes Allergies and Autoimmune Diseases

Anti-Tissue Transglutaminase Can Lead to Hashimoto’s Thyroiditis

Celiac, gluten intolerance, causes intestinal inflammation and immunological presentation of the common intestinal protein, tissue transglutaminase (tTG). The result is anti-tTG autoantibodies that stimulate an immune attack on intestines and other tissues.

Heparan-Binding Proteins Involved in Autoimmunity and Allergy

Those familiar with my blog know that I am obsessed with heparin-binding protein domains. The reason that I am focused on these parts of proteins, is because most cells rapidly sweep heparan sulfate polysaccharides across their surfaces from sites of secretion to sites of internalization. During inflammation, proteins with strong heparin-binding domains, consisting of triplets of basic amino acids, e.g. KRK (lysine-arginine-lysine), are internalized along with the heparan sulfate. The result is an aberrant presentation of these internalized proteins to the immune system and production of inappropriate antibodies, e.g. autoantibodies.

Basic Triplets in Hasimoto’s Autoantigens

One of my hobbies is checking for the unusual occurrence of basic triplets in autoantigens and allergens. I have found dozens of examples. The most recent is associated with Hashimoto’s Thyroiditis. I knew that attack on the thyroid was common in celiacs, because the celiac autoantigen tTG (it has a basic triplet) is also present in the thyroid and the celiac autoantibodies to tTG also cause an attack on the thyroid. But the autoantigen for Hashimoto’s Thyroiditis is thyroid peroxidase (TPO).

I was momentarily perplexed, but then examined the TPO amino acid sequence and immediately found a couple of basic triplets (KKR and KRK).

MRALAVLSVTLVMACTEAFFPFISRGKELLWGKPEESRV
SSVLEESKRLVDTAMYATMQRNLKKRGILSPAQLLSFSK
LPEPTSGVIARAAEIMETSIQAMKRKVNLKTQQSQHPTD
ALSEDLLSIIANMSGCLPYMLPPK...


Hashimoto’ Thyroiditis Linked to Celiac

Then, I did a PubMed search for “celiac and Hashimoto’s”. As expected, there is a recent paper (see below) that shows that celiac commonly leads to Hashimoto’s Thyroiditis.

An obvious explanation is that the initial attack on the thyroid by anti-tTG autoantibodies of celiac leads to thyroid inflammation and presentation of TPO, with a second round of autoantibodies produced to TPO resulting in Hashimoto’s Thyroiditis. Celiac may be the initial autoimmune trigger for many other autoimmune diseases and allergies.

Autism has been associated with maternal autoimmunity and placental abnormalities. Guess where tTG is found in high abundance?

reference:
Bardella MT, Elli L, Matteis SD, Floriani I, Torri V, Piodi L. Autoimmune disorders in patients affected by celiac sprue and inflammatory bowel disease. Ann Med. 2009;41(2):139-43.

Thursday, July 16, 2009

Chronic Disease, Cryptic Infections, Hibernation

Suppression of Inflammation and Surviving Cytokine Storms

There are numerous unanswered questions in modern medicine. What is aging, for example? Why do people become more inflamed as they age? What’s with all of the chronic, degenerative diseases? Why is lipid metabolism (LDL, HDL, triglycerides) linked to degenerative diseases, along with immune system function and inflammation? I am only going to start the answers here.

I might as well continue to be cryptic and give you the string of words/concepts I am trying to connect to answer the other questions:
Hydrogen sulfide (H2S), endorphins, hibernation, nuclear receptors (PPARs), antibiotics, chronic inflammatory diseases (fibromyalgia, arthritis, chronic fatigue, Lyme, Morgellon’s, Alzheimer’s, prostatitis, pancreatitis, cancers, etc.), autoimmunity, leaky gut/kidney/brain barrier, autism and H1N1.

First a word of advice: Beware of assuming that molecules are specific, i.e. with unique interactions, and that a small molecule will bind to one and only one protein target. [There are lots of bizarre exceptions to the assumption: Aldolase acts as a structural protein for Toxoplasma motility. Fluorescein is added to make protein fluorescent, but the fluorescein is also transported into cells on its own, i.e. fluorescein and rhodamine labeling can give different results. Heparin binds to most extracellular proteins and it is mostly a hydrophobic interaction -- heparin is not just for clotting anymore.]

Observations from the literature:
  • Maternal autoimmunity is linked to autism.
  • Autism is linked to leaky gut and chronic inflammation.
  • Gut/kidney/brain barriers are based on integrity of extracellular matrix (heparan sulfate) that is compromised by inflammation.
  • Chronic diseases require inflammation and circulating inflammatory cytokines (TNF, IL-1, IL-6) are elevated..
  • NSAIDs induce leaky gut and release of bacteria toward liver.
  • Phagocytosis of bacteria leads to transport of some bacteria, e.g. Chlamydia pneumoniae to other sites of inflammation, e.g. gut to joints.
  • Opiods can induce hibernation in rodents.
  • Sulfides can induce hibernation in rodents.
  • H1N1 my cause lethal pneumonia by lung cytokine storm.
  • Inflammatory cytokines and inflammation result from activation of NFkB.
  • Hibernation involves PPARs (another nuclear receptor transcription factor).
  • Omega-3 fatty acids reduce inflammation via COX-2 prostaglandins, but also by binding to PPARs.
  • For most of the diseases under consideration, suppression of inflammation will eliminate symptoms.
  • Antibiotics can impact all of these diseases in unpredictable ways. In some cases complete remission can be achieved and in other cases antibiotics can produce lethal cytokine storms.
  • Bacterial cell wall components, e.g. lipopolysaccharide, lipid A, are intensely pyrogenic, i.e. inflammatory.

Cryptic Bacteria in our Tissues

The role of bacteria in numerous diseases, including cancers, has been proposed since the early isolation of bacteria from human tissues. Many of these bacteria are difficult to culture and have variable forms viewed by microscope. Because these bacteria are difficult for microbiologists to handle with conventional approaches, their existence and significance has always been questioned. Use of antibiotics to treat chronic, inflammatory conditions has seemed inconsistent with the unproven existence of a bacterial cause. Thus, there is surprise when the inappropriate use of antibiotics leads to a cure.

Cryptic Bacteria Suppress Local Inflammation and Promote Chronic Inflammation

I think that the fundamental problem is the assumption that human tissue is sterile, i.e. free from microorganisms, such as bacteria, unless there is overt infection. Part of the sterile assumption derives from the intense inflammatory response to bacteria. In order for bacteria to survive in tissue, the bacteria must suppress inflammation and the tissue must tolerate the slow leaching of inflammatory bacterial materials.

Chronic Disease Hypothesis

Based on the cryptic bacterial infection hypothesis, many, if not all chronic diseases are initiated by inflammatory events that release bacteria into the blood stream carried in phagocytic cells. The cells migrate and take up residence at a region of inflammation. The bacteria produce molecules that produce tissue hibernation and quell local inflammation in response to the bacteria. The bacteria are, however, a source of ongoing irritation to the tissue and a chronic inflammatory disease results.

Eradication of Cryptic Bacteria

Antibiotics would be a typical choice for killing infecting bacteria. In the case of cryptic, chronic infections, however, application of therapeutic antibiotics may be problematic. The established infections may have produced privileged locations isolated from the vascular system and protected by a bacterial community, e.g. a biofilm. Alternatively, the death of the bacteria and release of pyrogenic factors my produce life-threatening inflammation, that requires careful support.

Hibernation in Rodents Provides Treatment Clues

The compromise of tissue inflammation in response to cryptic bacteria is similar to the physiology of rodent hibernation. In both cases, systemic inflammation is suppressed. At the cellular level, this means that other signaling pathways silence the inflammatory NFkB expression pattern. One of the major nuclear receptors that is activated in hibernation is PPAR. PPAR is activated by opiods and H2S, which also induce hibernation in rodents. There are numerous analogs, inhibitors and H2S donors that could be used to disrupt hibernation (free local suppression of inflammation) or reduce symptoms by suppressing systemic inflammation.

Inflammation Compromises Tissue/Blood Barriers

Inflammation causes a disruption of the integrity of the endothelial extracellular matrix at sites of local inflammation. NFkB activation shuts down the expression of genes involved in heparan sulfate proteoglycan (HSPG) synthesis makes the tissue/blood barrier leaky. Locally this facilitates the recruitment of lymphocytes and neutrophils for defense, but systemically it leads to leaky gut/kidney/brain barriers that permit bacteria to cross.

Convergence of Therapies to Attack Cryptic Infections

The central approaches to attack cryptic infections are a combination of antibiotics and suppression of cytokine storms. These approaches are used in Marshall’s Protocol [http://bacteriality.com/ ], which also exploits a vitamin D receptor antagonist, Olmesartan, that also inhibits NFkB and inflammation.

A similar protocol has been developed by Dr. Michael Powell to inhibit hibernation and attack cryptic infections:
http://www.faqs.org/patents/app/20090163448

These approaches are similar to the lengthy use of antibiotics for the treatment of chronic Lyme disease.

It is very interesting to note that some of the most effective treatments for a long list of degenerative chronic diseases, autoimmune diseases and cancers, use essentially the same protocol that should attack cryptic bacteria and provide support for ensuing inflammation.

Tuesday, July 7, 2009

Flu Susceptibility and Anti-Inflammatory Fish Oil

Omega-3 Oils Reduce Inflammation, but May Increase H1N1 Infection Risk

The goal seems to be to reduce inflammation and reduce disease, but it isn’t that simple. Inflammation is not bad. Chronic inflammation is the problem for degenerative diseases. After all, inflammation is just what we call the mobilization of our immune system to fight infection. The problem is that inflammation needs to be properly controlled to be invoked only when needed, to be kept localized and to be brought to a proper conclusion.

A recent article extended studies of fish oil and various types of infections, to influenza. It used a mouse model that focused on the local, lung aspects of flu infection. Some mice were fed fish oil in a 4:1 ratio to corn oil (fish group) and the controls were just fed corn oil (corn group), as the lipid part of the diets.

Both fish oil and corn oil groups got sick when exposed to flu virus. The lungs of the fish treated group were less inflamed, but there was more virus and an increased death rate. The fish oil effectively reduced inflammation, but the inflammation in the corn oil, inflamed, mouse was useful in controlling the spread of the virus. Does this mean that chronic dietary inflammation is protective?

How close does this mouse system model human H1N1 infections? A lot can be learned from animal models, but not all aspects of the human disease are reflected in this model. There is no single H1N1 strain, for example. Flu viruses mutate thousands of times faster than even the most variable bacteria. Thus, people in various parts of Asia may be experiencing a different H1N1 than people in South America. Some H1N1 infections involve organs other than the lungs and cytokine storms can also be deadly.

If H1N1 is raging, is fish oil a good idea? It would be prudent to reduce other sources of inflammation, by eating an anti-inflammatory diet and getting plenty of exercise. The answer would seem to be to use only enough fish oil to reduce remaining symptoms of chronic inflammation, e.g. aching joints. The mouse model may have reduced the ability to produce an inflammatory response beyond elimination of chronic inflammation.

Most people who eat a high carb diet, with the typical inclusion of vegetable oils, starch and high fructose corn syrup would probably benefit from fish oil supplements, even in the context of influenza risk. It would take a lot of fish oil to compensate for the other inflammatory parts of their diet. Obesity is both a symptom of dietary inflammation and a source of chronic inflammation. Reluctance to engage in physical activity is another indicator of inflammation.

It would be helpful if epidemiologists studying the H1N1 swine flu pandemic would determine if chronic inflammation is a risk or benefit in surviving the disease. It would also be helpful to know what simple dietary or other interventions, e.g. nicotine, caffeine, would be helpful for various symptoms of the disease.

ref:
Schwerbrock NM, Karlsson EA, Shi Q, Sheridan PA, Beck MA. Fish Oil-Fed Mice Have Impaired Resistance to Influenza Infection. J Nutr. 2009 Jun 23. [Epub ahead of print]

Saturday, July 4, 2009

An Autoantigen for Pancreatitis

Pancreatic Secretory Trypsin Inhibitor (PSTI) Has Internalization Basic Triplet

Pancreatitis is an inflammation of the pancreas resulting from lack of adequate inhibition of proteases. Autoantibodies against PSTI would explain some forms of pancreatitis.

I was researching the maintenance of baby gut flora by mother’s milk, when the reference discussed here was brought to my attention by my wife, who happens to be a lactation consultant. The paper showed that PSTI is present in colostrom, the first milk that a baby gets, before the true milk comes in. PSTI protects the new gut from digestion by its own pancreatic proteases, since PSTI is a protease inhibitor that sticks to the gut.

I naturally assumed that PSTI stuck to the gut by heparin-binding domains that would stick to the heparan sulfate proteoglycans on the gut surface. [Recall that it is via these HSPGs that viruses and bacteria infect the gut and the HSPGs in turn are protected during infections by the release of heparin from mast cells. The heparin in the guts of cattle and pigs are used to make commercial heparin to block blood clotting.] So I looked up the structure (above, with basic amino acids in blue and basic triplet on right) sequence of human PSTI at NCBI:

>gi|190694|gb|AAA36522.1| PSTI
MKVTGIFLLSALALLSLSGNTGADSLGREAKCYNELNGCTKIYD
PVCGTDGNTYPNECVLCFENRKRQTSILIQKSGPC

The basic triplet (RKR,arg-lys-arg), from my perspective, should result in presentation to the immune system during high levels of inflammation, and as a consequence result in autoantibodies against PSTI. The result would be the neutralization of the protease inhibitor and damaging production of active protease to attack the pancreas, i.e. pancreatitis.

It would be fairly easy to test this hypothesis by looking for the anti-PSTI antibodies in some people with pancreatitis. Other autoantibodies, e.g. against tissue transglutaminase, might also be checked, because the inflammation that produced one autoantibody may produce others and both PSTI and tTG are produced in the intestines. In fact, celiac may be the cause of some cases of autoimmune pancreatitis.

Note added in proof:

I just checked the literature on PubMed and found that PSTI is in fact an autoantigen in pancreatitis and produces antibodies against PSTI:
Raina A, Greer JB, Whitcomb DC. Serology in autoimmune pancreatitis. Minerva Gastroenterol Dietol. 2008 Dec;54(4):375-87.

and
I found that pancreatitis is often found associated with celiac (gluten intolerance):
Patel RS, Johlin FC Jr, Murray JA. Celiac disease and recurrent pancreatitis. Gastrointest Endosc. 1999 Dec;50(6):823-7.

ref:
Marchbank T, Weaver G, Nilsen-Hamilton M, Playford RJ. Pancreatic secretory trypsin inhibitor is a major motogenic and protective factor in human breast milk. Am J Physiol Gastrointest Liver Physiol. 2009 Apr;296(4):G697-703.