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Last Updated: Oct 11, 2012 - 10:22:56 PM
Research Article
Liver Channel

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Latest Research : Gastroenterology : Liver

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small intestinal bacteria overgrowthplays a role in nonalcoholic fatty liver disease?

Feb 22, 2008 - 7:09:07 AM , Reviewed by: Dr. Sanjukta Acharya

[RxPG] An article recently published in the January 14 issue of the World Journal of Gastroenterology has great significance for NASH. This article will undoubtedly bring about new pathogenesis and treatment of NASH.

Small intestinal bacterial overgrowth has been reported to play a role in the pathogenesis of NASH, endotoxin and TNF-¦Á being the possible mediators. Contrary to this hypothesis, in another study, antibiotic treatment did not normalize aminotransferase levels in NASH patients. This article describes an animal experiment of NASH by Dr. Wan-Chun Wu et al.

A research article to be published on January 14, 2008 in the World Journal of Gastroenterology addresses this question. Dr. Wan-Chun Wu et al established a NASH animal model by a high fat diet for 12 wks successfully, and treated with cidomycin after 8 wks of the high fat diet. A semi-solid colored marker was used for monitoring small intestinal transit. The proximal small intestine was harvested under sterile condition and processed for quantitation for aerobes (E. coli) and anaerobes (Lactobacilli). Liver pathologic score was calculated to qualify the severity of hepatitis. Serum ALT and AST levels were detected to evaluate the severity of hepatitis.

After 12 wks, they had significant findings. Small intestinal transit was inhibited in NASH group. Rats treated with cidomycin had higher small intestine transit rate than rats in NASH group. The high fat diet resulted in quantitative alterations in the aerobes (E. coli) but not in the anaerobics (Lactobacill). There was an increase in the number of E. coli in the proximal small intestinal flora in NASH group than in control group. TNF-¦Áconcentration was significantly higher in NASH group than in control group. TNF-¦Áconcentration was lower in cidomycin group than in NASH group. Treatment with cidomycin showed its effect by significantly lowering serum ALT, AST and TNF-¦Álevels of NASH rats. SIBO may decrease small intestinal movement in NASH rats. SIBO may be an important pathogenesis of Nash and treatment with cidomycin by mouth can alleviate the severity of NASH.

The results of this study suggest a promising future for many NASH patients. Due to the high disease incidence of NAFLD around the world and no effective treatment at present, this case reported by Dr. Wan-Chun Wu is surely worth the attention of both doctors and the public at large.

Publication: January 14 issue of the World Journal of Gastroenterology

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 About Dr. Sanjukta Acharya
This news story has been reviewed by Dr. Sanjukta Acharya before its publication on RxPG News website. Dr. Sanjukta Acharya, MBBS is the chief editor for RxPG News website. She oversees all the medical news submissions and manages the medicine section of the website. She has a special interest in diabetes and endocrinology.
RxPG News is committed to promotion and implementation of Evidence Based Medical Journalism in all channels of mass media including internet.
 Additional information about the news article
Reference: Wu WC, Zhao W, Li S. Small intestinal bacteria overgrowth decreases small intestinal motility in the NASH rats. World J Gastroenterol 2008 January; 14(2):313-317
For any corrections of factual information, to contact the editors or to send any medical news or health news press releases, use feedback form

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