1 / 42

Nutraceuticals for Gastrointestinal Disorders

Nutraceuticals for Gastrointestinal Disorders. Leo Galland, M.D., F.A.C.P. Foundation for Integrated Medicine www.mdheal.org. Nutraceuticals vs Pharmaceuticals. Pharmaceuticals are mostly used to suppress specific physiological functions:

rusk
Télécharger la présentation

Nutraceuticals for Gastrointestinal Disorders

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Nutraceuticals for Gastrointestinal Disorders Leo Galland, M.D., F.A.C.P. Foundation for Integrated Medicine www.mdheal.org

  2. Nutraceuticals vs Pharmaceuticals • Pharmaceuticals are mostly used to suppress specific physiological functions: PPIs, H2 blockers, calcium blockers, anticholinergic, antidopaminergic, anti-inflammatory, immunosuppressant. • Nutraceuticals may enhance physiologic function, complementing or replacing drugs. Some may act like drugs.

  3. Esophageal Reflux • Results from reflex relaxation of the LES in response to gastric vagal mechanoreceptors (programmed in brainstem, unrelated to swallowing or gastric pH). Post-prandial gastric distension is a key trigger. • PPI’s and H-2 blockers convert acid reflux into non-acid reflux. Pepsin and bile present in gastric juice may yet act as esophageal irritants.

  4. Toxicity of Acid Lowering Drugs • May increase development of atrophic gastritis in H. pylori-infected individuals • Allow gastric bacterial/yeast overgrowth and post-prandial intra-gastric production of ethanol and nitrosamines • May impair absorption of vitamin B12, folic acid, carotene, minerals and medication • Increase risk of hip fracture and pneumonia

  5. Calcium vs GERD • With acute esophagitis, LES contraction becomes dependent upon extracellular Ca Sohn et al, J Pharmacol Exp Ther.1997;283:1293-304. • Intra-gastric calcium increases esophageal acid clearance and LES tone, independent of antacid effects, in patients with GERD. Rodriguez-Stanley et al, Dig Dis Sci 2004; 49:1862-7

  6. Non-Drug Treatment of GERD • Small meals eaten slowly in a relaxed fashion to decrease gastric distention. Chewing and swallowing enhance esophageal acid clearance. • Calcium citrate 250 mg after each meal • Postprandial enzymes • Red pepper powder 800 mg t.i.d. Bortolotti et al, NEJM 2002; 346: 947-8. • Deglycyrrhizinated licorice, aloe, HCl (?)

  7. TJ-43, aka Rikkunshi-to, Liu-Jun-Zi-Tang, Six Gentleman Formula • Speeds esophageal acid clearance in children with GERD, without increasing LES tone. Kawahara et al, Pediatr Surg Int. 2007 • Stimulates gastric emptying in dyspeptic adults. Tatsuta & Iishi, Aliment Pharmacol Ther. 1993 • Increases gastric NO production in rats. Arakawa et al, Drugs Exp Clin Res. 1999 • Raises plasma gastrin and somatostatin in human volunteers. Naito et al. Biol Pharm Bull. 2001

  8. TJ-43 Components • Atractylodes lanceae rhizome • Ginseng root • Pinellia tuber • Hoelen • Zizyphus (jujube) fruit • Aurantii nobilis pericarp (orange peel) • Glycyrrhizae (licorice) root • Zingiberis (ginger) rhizome Hesperidin and L-arginine are major ingredients

  9. STW 5 (Iberogast) RelievesSymptoms of Functional Dyspepsia • Iberis amara: prokinetic effects comparable to metoclopramide and cisapride without CNS/cardiotoxicity • Spasmolytic herbal extracts: German chamomile, angelica root, caraway, lemon balm, milk thistle, celandine, licorice, peppermint leaf. Von Armin et al, Am J Gastroenterol. 2007 Meltzer et al, Aliment Pharmacol Ther. 2004

  10. ASA/NSAID Gastropathy/Enteropathy • Protective supplements (human trials): Vit C 500-1000 mg bid SAMe 500 mg/day Cayenne 20 grams Deglycyrrhizinated licorice 350 mg tid Colostrum 125 mg tid L-glutamine 7 grams tid

  11. Gastroprotection: Cayenne • Cayenne protects against aspirin-induced gastric mucosal damage in humans at a dose of 20 g administered 30 minutes before 600 mg of aspirin. Yeoh et al, Dig Dis Sci 1995. • Capsaicin is gastroprotective against a range of mucosal toxins in rats but may exert its effects by irritant-induced pre-conditioning, stimulating gastric mucus secretion. • Patients with recurrent/chronic abdominal pain, cayenne aggravates 25-50%. Kang et al, Gut 1992

  12. Gastroprotection: Vitamin C • ASA inhibits absorption of vitamin C • ASA 400 mg bid for 3 days depletes intragastric vitamin C, suppresses gastric blood flow, SOD, GPx. Prevented by Vitamin C 480 mg b.i.d. • Healthy volunteers: • Adding C reduced ASA-induced gastric lesions • C 1000 mg b.i.d. for 3 days prevented ASA-induced duodenal injury

  13. Gastroprotection: SAMe • S-adenosylmethionine (500 mg) given with aspirin (1300 mg) reduced by 95% the extent of aspirin-induced erosive gastritis in a single-dose study of healthy volunteers. Laudanno et al, Acta Gastroenterol Latinoam 1984. • Similar protective effects have been demonstrated in rats. • Yet, the most common side effect of SAMe is abdominal pain.

  14. H. Pylori Inhibition in vitro • Mastic gum (P lentiscus), used for treatment of dyspepsia, kills H. pylori, but failed a clinical trial • Raw garlic and aqueous garlic extract inhibit growth (thiosulfinate, MIC of 40 mcg/ml) • Sulforaphane (cabbage and broccoli) has MIC of <4 mcg/ml (cabbage juice and broccoli sprouts have been used to treat PUD) • Lactobacilli inhibit growth

  15. Adjunctive Therapy of H. pyloriHuman Studies • Probiotics decrease treatment side effects with inconsistent effects on outcome • Bovine lactoferrin 200 mg bid, may increase therapeutic response and/or decrease side effects • N-acetyl cysteine liquid 400 mg tid, increased response to clarithromycin/lansozrapole. Gurbuz, South Med J. 2005;98:1095-7.

  16. Irritable Bowel Syndromes:a moving target • Motility • Stress and anxiety • Flora • Digestion and fermentation • Allergy and specific food intolerance • Pain sensitivity • Inflammation

  17. IBS: Triggers • Stressful thoughts/events • Microbes • Bacteria • Yeast • Parasites • Food • Fiber/lack of fiber • Carbohydrate, form and amount • Specific food intolerance/allergy

  18. Achlorhydria/hypo-chlorhydria Surgical resection/blind loops Stasis from abnormal motility Strictures Fistulas Diverticulosis Immune deficiency Intestinal giardiasis Tropical sprue Malnutrition CAUSES OF UPPER GI BACTERIAL OVERGROWTH

  19. EFFECTS OF UPPER GI BACTERIAL OVERGROWTH • Carbohydrate/fiber intolerance, bloating, altered bowel habit, fatigue • Vitamin B12 deficiency • Bile salt dehydroxylation • Impairs formation of micelles • Bile salt deconjugation • Increases colonic water secretion • Inhibit monosaccharide transport

  20. BREATH TESTING FOR BACTERIAL OVERGROWTH • FALSE POSITIVES • Smoking, sleeping, eating • Soluble fiber/FOS • Rapid intestinal transit • FALSE NEGATIVES • Colonic hyperacidity (low stool pH) • Absence of appropriate flora • Delayed gastric emptying • Antibiotics

  21. BACTERIAL OVERGROWTH IS MORE COMMON THAN SUSPECTED • 202 patients with IBS underwent hydrogen breath testing • 157 (78%) had SBBO and were treated with antibiotics • 25/47 patients had normal breath tests at follow-up • Diarrhea and abdominal pain were significantly improved by treatment

  22. SBBO AND IBS: CONCLUSIONS Elimination of SBBO eliminated IBS in 12/25 of patients: 48 % of patients with IBS and abnormal breath tests who responded to antibiotics with normal breath tests no longer met Rome criteria for IBS Pimentel M et al, AM J Gastroenterol 2000

  23. MANAGEMENT OF UGI BACTERIAL OVERGROWTH INVOLVES DIET, ANTIBIOTICS • Low fermentation diet -restrict sugar, starch, soluble fiber • Antimicrobials (in select cases): • Metronidazole (anaerobes) • Tetracyclines (anaerobes) • Ciprofloxacin (aerobes) • Bismuth • Bentonite

  24. Low Fermentation Diet • Basic diet: no wheat, sucrose, lactose • Additional restrictions -no glutinous grains -no cereal grains, potatoes -restrict fruits, juices, honey -restrict fructose, fructans -avoid legumes -cook all vegetables

  25. A Drug-Free Clinical Approach to IBS • Avoid/reduce medications with GI side effects • Evaluate the role of infection or microbial overgrowth/deficit (dysbiosis) • Individualized dietary prescription • Stress management, hypnotherapy • Nutraceutical decision tree

  26. Supplements for IBS • Probiotics • Prebiotics • Antimicrobial • Spasmolytic • Motility enhancing • Laxative • Antidiarrheal

  27. Probiotics • Lactic acid producers: Lactobacilli (acidophilus, plantarum, casei, salivarius, reuterri, sporogenes), Bifidobacteria, Streptococci • Non-pathogenic E. coli • Soil-derived organisms: Bacilli (laterosporus, subtilis) • Saccharomyces boulardii (yeast against yeast)

  28. Prebiotics • Foods that support the growth of probiotics: bran, psyllium, resistant starch (high amylose), oligofructose (FOS), inulin, germinated barley foodstuff (GBF), synthetic oligosaccharides • FOS is found in onions, garlic, rye, blueberries, bananas, chicory. Dietary intake averages 2-8 gm/day. • Inulins are derived from chicory and artichoke

  29. Clinical Uses of Probiotics • Antibiotic-induced diarrhea • Traveler's diarrhea/acute GI infections • Irritable bowel syndromes • Inflammatory bowel disease • Diverticulitis • Colon cancer prevention

  30. LACTOBACILLI: BENEFICIAL EFFECTS • Produce organic acids: lower bowel pH • Produce H202 • Antagonize enteropathogenic E. Coli, Salmonella, Staphylococci, Candida albicans, and Clostridia spp • Degrade N-nitrosamines • Anti-tumor glycopeptides (L. bulgaricus) • Stimulate balanced immune responses • Decrease rate of post-op infection (L plantarum)

  31. BENEFITS OF SACCHAROMYCES BOULARDII • Stimulates production of sIgA • Protects against antibiotic and traveler’s diarrhea • Helps reverse C difficile colitis • Improves acute diarrheal disease in children • SAIF inhibits NFkB induction of IL-8 gene expression

  32. Clinical uses of Prebiotics and Fiber • Irritable bowel syndromes • Ulcerative colitis • Prevention of colon cancer • Prevention of diverticulitis

  33. Herbs Used for IBS Treatment • Aloe, various species • Fennel seed (Foeniculum vulgaris) • Ginger (Zingiber officinalis) • Slippery elm bark (Ulmus rubra) • Marshmallow root (Althea officinalis) • Cumin (Curcuma longa) • Chamomile, various species • Caraway (Carum copticum) • Lemon balm (Melissa officinalis) • Triphala (Terminalia chebula/belerica, Emblica officalis)

  34. Peppermint Oil for IBS • Enteric coated peppermint oil is twice as effective as placebo for symptom relief; effect lasts after Rx ends. Capello et al, Dig Liver Dis. 2007 • Inhibits gall bladder contraction, small bowel transit, colonic motility Goerg, Spilker Aliment Pharmacol Ther. 2003 ; Asao et al, Gastrointest Endosc. 2001 • Reduces cellular calcium influx. Hills, Aaronson Gastroenterology. 1991 • Decreases sulfide production by gut flora Ushid et al, J Nutr Sci Vitaminol (Tokyo). 2002 • Kills trophozoites of Giardia lamblia. Vidal et al, Exp. Parasitol. 2007

  35. TCM for Symptoms of IBS • Individualized vs standard formula vs placebo: short-term benefits from both formulas, post-treatment benefits only in the individualized treatment group. Bensoussan et al, JAMA 1998 • Standarized formula no better than placebo. Leung et al, Am J Gastroenterol. 2006

  36. Calcium and Fiber forChronic Diarrhea • Combination of psyllium and calcium was more effective and better tolerated than loperamide for controlling symptoms of chronic diarrhea. Qvitzau et al, Scand J Gastroenterol. 1988 • Psyllium does not prevent calcium absorption in humans, contrary to animal data. Heaney & Weaver, J Am Geriatr Soc. 1995

  37. Inflammatory Bowel Disease:Dietary Decisions • Dietary responses may differ for Crohn’s disease and ulcerative colitis. • Avoid sucrose and symptom-provoking foods. • The specific carbohydrate diet (SCD), an exclusion diet or a defined formula diet may help relieve symptoms and may help induce or maintain remission (Crohn’s). • Replace vegetable oils with flaxseed oil and/or coconut oil (1 to tablespoons a day) • Oat bran 60 grams a day for patients with mild to moderate ulcerative colitis

  38. Germinated Barley Foodstuff (GBF) and Ulcerative Colitis • GBF 20-30 gm/day helps to induce and maintain remission in patients with ulcerative colitis. • Mechanism: Increased colonic butyrate production decreases NFkB activation. Hanai et al. Int J Mol Med. 2004 May;13(5):643-7. Kanauchi et al. J Gastroenterol. 2003;38:134-41. Kanauchi et al, Int J Mol Med. 2003;12:701-4 Kanauchi et al. J Gastroenterol. 2002; 37 Suppl 14:67-72. .

  39. Vitamins and IBD • Folic acid, 800 mcg/day or more, especially for patients with high homocysteine or taking 5-ASA derivatrive • Vitamin B12, 1000 mcg a month for patients with CD, those receiving folic acid or with high homocysteine • Vitamin B6, 10 to 20 mg/day, especially for patients with high homocysteine or taking high dose folic acid • Vitamin D3, 1000 IU/day or more to maintain levels of 25-OH vitamin D at 40 mcg/ml • An antioxidant supplying vitamin E 400 IU/day and vitamin C 500 to 1000 mg/day • Vitamin K, optimal dose unknown

  40. Minerals and IBD • Zinc, 25 to 200 mg/day, to maintain plasma zinc above 800 mg/L • Calcium 1000 mg/day for patients on steroids or with low dietary calcium. • Selenium 200 mcg/day, especially for patients with ileal resection or on liquid formula diets • Magnesium citrate (150 to 900 mg/day) for patients with urolithiasis. • Chromium 600 mcg/day for patients with steroid-induced hyperglycemia.

  41. Biologicals and IBD-1 • Fish oils supplying 4000 to 5000 mg/day of omega-3 fatty acids (EPA + DHA) • VSL-3 (one sachet twice a day) for patients with mild to moderate UC or pouchitis. • S. boulardii 250 mg t.i.d. or 500 mg b.i.d. for patients with chronic stable disease or to maintain remission

  42. Biologicals and IBD-2 • DHEA 200 mg/day for patients with refractory disease and low DHEA-S • N-acetyl glucosamine 3000 to 6000 mg/day • Boswellia serrata gum resin, 350 mg t.i.d. • Aloe vera gel 100 ml b.i.d for patients with ulcerative colitis • Mastic gum 1000 mg twice a day, tested in Crohn’s disease

More Related