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Study of total alkaloids from Rhizoma Coptis Chinensis on experimental gastric ulcers

  • Experimental Work and Research
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Abstract

Objective: To study the effects of total alkaloids (TA) extracted from Rhizoma Coptis Chinensis on experimental gastric ulcer models.Methods: Four kinds of experimental ulcer models were established respectively by water-immersion stress, intragastric ethanol, acetic acid erosion, and pylorus ligation. The anti-ulcer effects of TA were evaluated, and compared with that of berberine (Ber) and cimetidine (Cim).Results: TA showed significant inhibitory effects on ulcerative formation induced by water-immersion stress, intragastric ethanol, and pylorus ligation in dose-dependent manner, and showed therapeutic effect on acetic acid erosion-inducing ulcer, in comparison with the control group. The anti-ulcer activity of Ber was less than TA containing equal content of Ber. TA significantly reduced the free acidity, total acidity and total acid output, but didn’t affect the gastric juice volume, gastric pepsin activity, adherent mucus quantity of stomach wall and free mucus dissolving in gastric juice. The suppressive activities of TA on gastric acid secretion didn’t occur when it was administered into dodecadactylon at a dose of 360 mg/kg wt. Moreover, when compared with Cim, the inhibitory effect of TA on gastric acid secretion isn’t proportional to the inhibitory effects on the formation of the 4 kinds of experimental ulcers.Conclusion: TA is a potent candidate in therapeutic drugs for treating gastric ulcer. Its anti-ulcer effective components and mechanism is not only related to Ber and inhibition of gastric acid, but also to other ingredients of TA and mechanism so far unknown.

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Authors and Affiliations

  1. Department of Pharmacology, Chongqing University of Medical Sciences, 400016, Chongqing

    Li Bei & Zhou Qi-xin

  2. Department of Chemistry, Chongqing University of Medical Sciences, China

    Shang Jing-chuan

Authors
  1. Li Bei
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  2. Shang Jing-chuan
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  3. Zhou Qi-xin
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Correspondence to Zhou Qi-xin.

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Supported by Chongqing Board of Health (2004-B-31)

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Bei, L., Jing-chuan, S. & Qi-xin, Z. Study of total alkaloids from Rhizoma Coptis Chinensis on experimental gastric ulcers. Chin. J. Integr. Med. 11, 217–221 (2005). https://doi.org/10.1007/BF02836508

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  • DOI: https://doi.org/10.1007/BF02836508

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