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Journal of Investigative Surgery 2016-Dec

Effects of Proanthocyanidins on Intestinal Motility Disturbance Following Intestinal Ischemia/Reperfusion.

Aðeins skráðir notendur geta þýtt greinar
Skráðu þig / skráðu þig
Krækjan er vistuð á klemmuspjaldið
Lan Luo
Yu-Cheng Li
Xiao-Zhen Dai
Zheng Yang
Qiang Song
Wen-Si Hu
De-Qi Cao
Xiao Zhang

Lykilorð

Útdráttur

OBJECTIVE

To investigate the potential protective effects of Proanthocyanidins(PAs) on intestinal motility disturbance following intestinal ischemia/reperfusion (I/R).

METHODS

Male rats were divided into four groups: Sham, I/R, I/R+PA100 and I/R+PA200. Sham group underwent laparotomy without ligation, the others were subjected to intestinal ischemia for 1 h and reperfusion 4 h. Rats in the I/R+PA100 group received PAs (100 mg/kg/d) for 5 days prior to I/R, while rats in the I/R+PA200 group received PAs (200 mg/kg/d). After reperfusion, using an electrophysiology instrument measured ileal slow wave. Ileal specimens were obtained to determine contractility, tissue levels of Bax, Bcl-2, and Caspase-3 and evaluate histopathological changes. In addition, blood sample was obtained to determine serum superoxide dismutase (SOD) activity and malondialdehyde (MDA) levels.

RESULTS

Intestinal I/R caused severe histopathological injury including mucosal erosions, inflammatory cell infiltration, necrosis, and hemorrhage. Both PAs treatment decreased mucosal pathological impairment in comparison with the I/R group (p < .05) in light microscopic evaluations. In both PAs-treated groups, Bax and Caspase-3 expression were decreased compared to I/R group, while the Bcl-2 expression increased (p < .05), which was similarly the case for serum SOD activity demonstrated significant enhance (p < .05) and decline in MDA levels in comparison with I/R group (both p < .05). Moreover, PAs treatment was more efficient in attenuating serum MDA levels of intestinal I/R (both p < .05). And the contractile amplitude and frequency of slow wave in I/R+PA100 and I/R+PA200 groups were higher than I/R group (both p < .05).

CONCLUSIONS

PAs improve intestinal motility disturbance following intestinal I/R by alleviating oxidative stress and apoptosis.

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