alexa Ulcerogenic and intestinal motility transit stimulating actions of nevirapine in albino Wistar rats.
Gastroenterology

Gastroenterology

Journal of Gastrointestinal & Digestive System

Author(s): Umoren EB, Obembe AO, Osim EE

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Abstract The antiretroviral is a non-nucleoside reverse transcriptase inhibitor of human immunodeficiency virus type 1. This study was undertaken to investigate the effect of nevirapine (NVP) administration on gastric acid secretion, pepsin secretion, mucosal secretion, intestinal motility, and transit using apparently healthy albino Wistar rats. Eighty albino Wistar rats (50-125 g body weight) from the start of the experiment were used for the study. Rats in the control group were fed normal rodent chow, while the NVP group was fed by gavage NVP (0.4 mg/kg body weight) two times daily (07:00 and 18:00 hours) in addition to normal rodent chow for 12 weeks. All animals were allowed free access to clean drinking water. Mean basal gastric output and peak acid output following histamine administration in the NVP-treated group were significantly higher (p < 0.001, respectively) compared to the control. Following cimetidine administration, there was significant decrease (p < 0.001) in peak acid output in the NVP-treated group compared to the control. The concentration of gastric pepsin, adherent mucus secretion, and mean value for ulcer score were significantly higher (p < 0.001) compared to their control group, respectively. There were significant increases (p < 0.05, respectively) in intestinal motility and basal contraction (p < 0.05) and increase in intestinal transit of the ileum of NVP-treated rats compared to their control, respectively. Results of the study suggest that NVP administration might provoke gastric ulceration in rats which may be caused by high pepsin, high basal acid output, and increased intestinal motility and transit. This article was published in J Physiol Biochem and referenced in Journal of Gastrointestinal & Digestive System

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