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Claims for Patent: 6,861,053

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Claims for Patent: 6,861,053

Title: Methods of diagnosing or treating irritable bowel syndrome and other disorders caused by small intestinal bacterial overgrowth
Abstract:Disclosed is a method of diagnosing irritable bowel syndrome, fibromyalgia, chronic fatigue syndrome, depression, attention deficit/hyperactivity disorder, autoimmune diseases, such as multiple sclerosis and systemic lupus erythematosus, or Crohn's disease, which involves detecting the presence of small intestinal bacterial overgrowth (SIBO) in a human subject having at least one symptom associated with a suspected diagnosis of any of those diagnostic categories. Also disclosed is a method of treating these disorders, and other disorders caused by SIBO, that involves at least partially eradicating a SIBO condition in the human subject. The method includes administration of anti-microbial or probiotic agents, or normalizing intestinal motility by employing a prokinetic agent. The method improves symptoms, including hyperalgesia related to SIBO and disorders caused by SIBO. Also disclosed is a kit for the diagnosis or treatment of irritable bowel syndrome, fibromyalgia, chronic fatigue syndrome, depression, attention deficit/hyperactivity disorder, autoimmune diseases, or Crohn's disease.
Inventor(s): Lin; Henry C. (Manhattan Beach, CA), Pimentel; Mark (Los Angeles, CA)
Assignee: Cedars-Sinai Medical Center (Los Angeles, CA)
Application Number:09/374,142
Patent Claims: 1. A method of treating irritable bowel syndrome comprising: detecting the presence of small intestinal bacterial overgrowth in a human subject having at least one symptom associated with a suspected diagnosis of irritable bowel syndrome; and at least partially eradicating the small intestinal bacterial overgrowth to treat the irritable bowel syndrome.

2. The method of claim 1, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering an antimicrobial agent.

3. The method of claim 1, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering an antibiotic.

4. The method of claim 2, wherein the antimicrobial agent is selected from the group consisting of neomycin, metronidazole, teicoplanin, ciprofloxacin, doxycycline, tetracycline, augmentin, cephalexin, penicillin, ampicillin, kanamycin, rifamycin, vancomycin, rifaximin, and combinations thereof.

5. The method of claim 3, wherein the antibiotic is rifaximin.

6. The method of claim 1, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering a probiotic agent.

7. The method of claim 6, wherein the probiotic agent is at least one species or strain of bacterium selected from the group consisting of Bifidobacterium, Lactobacillus and combinations thereof.

8. The method of claim 1, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering a prokinetic agent.

9. The method of claim 8, wherein the prokinetic agent is selected from the group consisting of a peptide, motilin, a macrolide compound, a bile acid, a bile salt, a cholinergic compound, a dopamine antagonist, a nitric oxide altering agent, a 5-HT receptor antagonist, a neuroleptic agent, a kappa agonist, an antihistamine, cisapride, metoclopramide, domperidone, bethanechol, erythromycin, azithromycin, nomega-nitro-L-arginine methylester, N-monomethyl-L-arginine, ondansetron, alosetron, promethazine, meclizine, prochlorperazine, chlorpromazine, haloperidol, fedotozine and combinations thereof.

10. The method of claim 8, wherein the prokinetic agent is motilin.

11. A method of treating fibromyalgia comprising: detecting the presence of small intestinal bacterial overgrowth in a human subject having at least one symptom associated with a suspected diagnosis of fibromyalgia; and at least partially eradicating the small intestinal bacterial overgrowth to treat the fibromyalgia.

12. The method of claim 11, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering an antimicrobial agent.

13. The method of claim 11 wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering an antibiotic.

14. The method of claim 12, wherein the antimicrobial agent is selected from the group consisting of neomycin, metronidazole, teicoplanin, ciprofloxacin, doxycycline, tetracycline, augmentin, cephalexin, penicillin, ampicillin, kanamycin, rifamycin, vancomycin, rifaximin, and combinations thereof.

15. The method of claim 13, wherein the antibiotic is rifaximin.

16. The method of claim 11, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering a probiotic agent.

17. The method of claim 16, wherein the probiotic agent is at least one species or strain of bacterium selected from the group consisting of Bifidobacterium, Lactobacillus and combinations thereof.

18. The method of claim 11, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering a prokinetic agent.

19. The method of claim 18, wherein the prokinetic agent is selected from the group consisting of a peptide, motilin, a macrolide compound, a bile acid, a bile salt, a cholinergic compound, a dopamine antagonist, a nitric oxide altering agent, a 5-HT receptor antagonist, a neuroleptic agent, a kappa agonist, an antihistamine, cisapride, metoclopramide, domperidone, bethanechol, erythromycin, azithromycin, nomega-nitro-L-arginine methylester, N-monomethyl-L-arginine, ondansetron, alosetron, promethazine, meclizine, prochlorperazine, chlorpromazine, haloperidol, fedotozine and combinations thereof.

20. The method of claim 18, wherein the prokinetic agent is motilin.

21. A method of treating Crohn's disease comprising: detecting the presence of small intestinal bacterial overgrowth in a human subject having at least one symptom associated with a suspected diagnosis of Crohn's disease; and at least partially eradicating the small intestinal bacterial overgrowth to treat the Crohn's disease.

22. The method of claim 21, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering an antimicrobial agent.

23. The method of claim 21, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering an antibiotic.

24. The method of claim 22, wherein the antimicrobial agent is selected from the group consisting of neomycin, metronidazole, teicoplanin, ciprofloxacin, doxycycline, tetracycline, augmentin, cephalexin, penicillin, ampicillin, kanamycin, rifamycin, vancomycin, rifaximin, and combinations thereof.

25. The method of claim 23, wherein the antibiotic is rifaximin.

26. The method of claim 21, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering a probiotic agent.

27. The method of claim 26, wherein the probiotic agent is at least one species or strain of bacterium selected from the group consisting of Bifidobacterium, Lactobacillus and combinations thereof.

28. The method of claim 21, wherein at least partially eradicating the small intestinal bacterial overgrowth further comprises administering a prokinetic agent.

29. The method of claim 28, wherein the prokinetic agent is selected from the group consisting of a peptide, motilin, a macrolide compound, a bile acid, a bile salt, a cholinergic compound, a dopamine antagonist, a nitric oxide altering agent, a 5-HT receptor antagonist, a neuroleptic agent, a kappa agonist, an antihistamine, cisapride, metoclopramide, domperidone, bethanechol, erythromycin, azithromycin, nomega-nitro-L-arginine methylester, N-monomethyl-L-arginine, ondansetron, alosetron, promethazine, meclizine, prochlorperazine, chlorpromazine, haloperidol, fedotozine and combinations thereof.

30. The method of claim 28, wherein the prokinetic agent is motilin.

31. A method of treating a condition modulated by small intestinal bacterial overgrowth comprising: detecting the presence of small intestinal bacterial overgrowth in a human subject having at least one symptom associated with a suspected diagnosis of the condition; and at least partially eradicating the small intestinal bacterial overgrowth to treat the condition, wherein the condition is selected from the group consisting of chronic fatigue syndrome, depression, attention deficit/hyperactivity disorder and multiple sclerosis.
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