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Details for Patent: 6,562,629

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Details for Patent: 6,562,629

Title: METHOD OF DIAGNOSING IRRITABLE BOWEL SYNDROME AND OTHER DISORDERS CAUSED BY SMALL INTESTINAL BACTERIAL OVERGROWTH BY DETECTING THE PRESENCE OF ANTI-SACCHAROMYCES CERIVISIAE ANTIBODIES (ASCA) IN HUMAN SERUM
Abstract:Disclosed is a method of diagnosing small intestinal bacterial overgrowth (SIBO), irritable bowel syndrome, fibromyalgia, chronic fatigue syndrome, depression, attention deficit/hyperactivity disorder (ADHD), or an autoimmune disease by sampling serum from a human subject having a suspected diagnosis of any of these conditions and analyzing the serum for the presence of ASCA, which corroborates the suspected diagnosis. A method of determining a predisposition for developing Crohn's, in a human subject who does not present a set of symptoms characteristic of the disease and who has small intestinal bacterial overgrowth, involves sampling serum from the subject and analyzing the serum for the presence of ASCA. The presence of ASCA in the serum indicates a predisposition for developing Crohn's disease. Also disclosed is a kit for diagnosing and treating small intestinal bacterial overgrowth, irritable bowel syndrome, fibromyalgia, chronic fatigue syndrome, depression, attention deficit/hyperactivity disorder, or an autoimmune disease, such as multiple sclerosis or systemic lupus erythematosus. The kit is useful to improve symptoms, including hyperalgesia related to SIBO and disorders caused by SIBO.
Inventor(s): Lin; Henry C. (Manhattan Beach, CA), Pimentel; Mark (Los Angeles, CA)
Assignee: Cedars-Sinai Medical Center (Los Angeles, CA)
Filing Date:Aug 11, 1999
Application Number:09/374,143
Claims:1. A method of diagnosing small intestinal bacterial overgrowth or a condition caused by small intestinal bacterial overgrowth, said condition being selected from the group consisting of irritable bowel syndrome, fibromyalgia, chronic fatigue syndrome, depression, attention deficit/hyperactivity disorder, systemic lupus erythematosus, and multiple sclerosis, comprising: obtaining a serum sample from a human subject having a suspected diagnosis of small intestinal bacterial overgrowth or the condition caused by small intestinal bacterial overgrowth; and analyzing said serum sample for the presence of antibody specific for or cross reactive with a surface epitope of Saccharomyces cerivisiae, the presence of said antibody in said serum sample corroborating the suspected diagnosis of small intestinal bacterial overgrowth or the condition caused by small intestinal bacterial overgrowth.
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