Liu Huihui,Wang Yanjie,Liu Xudong,Guan Hongquan,Chai Jiyan,Zhao Jinru,Wang Deshan.Effect of pinaverium bromide on expression of aquaporin 3 in colon tissue of rats with diarrhea-predominant irritable bowel syndrome[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(03):233-236.
Liu Huihui,Wang Yanjie,Liu Xudong,Guan Hongquan,Chai Jiyan,Zhao Jinru,Wang Deshan.Effect of pinaverium bromide on expression of aquaporin 3 in colon tissue of rats with diarrhea-predominant irritable bowel syndrome[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(03):233-236.DOI:
Effect of pinaverium bromide on expression of aquaporin 3 in colon tissue of rats with diarrhea-predominant irritable bowel syndrome
Objective To study the serum vasoactive intestinal peptide (VIP) level and the effect of pinaverium bromide (PB) on expression of aquaporin 3 (AQP3) in colon tissue and diarrhea-predominant irritable bowel syndrome (D-IBS) model of rats. Methods A D-IBS rat model was established with chronic stress plus binding limbs. Level of VIP was measured by ELISA and expression of AQP3 was detected by real-time PCR and SABC
respectively. Results The VIP level in serum and colon tissue was higher in model group (10.46±1.666 and 4.495±0.341 ng/ml) and PB group (5.639±1.163 and 4.063±0.534 ng/ml) than in control group (3.092±0.613 and 3.811±0.275 ng/ml) (P0. 05)
which was particularly high in model group. The expression of AQP3 in colon tissue was remarkably decreased in model group and PB group
especially in model group (P0. 01). Conclusion PB improves D-IBS by inhibiting the secretion of VIP and up-regulating the AQP3 expression in colon tissue.