Korean J Physiol Pharmacol.
2001 Aug;5(4):323-331.
Protective effect of rutin on splanchnic injury following ischemia and reperfusion in rats
- Affiliations
-
- 1Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea. SYK@cau.ac.kr
Abstract
- A splanchic artery occlusion for 90 min followed by reperfusion
of the mesenteric circulation resulted in a severe form of circulatory
shock characterized by endothelial dysfunction, severe hypotension,
marked intestinal tissue injury, and a high mortality rate. The effect of
rutin, a flavonoid having antiprostanoid, anti-inflammatory,
antithrombotic, antioxidant effect, were investigated in a model of
splanchnic artery occlusion (SAO) shock in urethane anesthetized rats.
Occlusion of the superior mesenteric artery for 90 min produced a severe
shock state resulted in a fatal outcome within 120 min of reperfusion in
many rats. Rutin was given as a bolus (1.28 mg/kg) 10 min prior to
reperfusion. Administration of rutin significantly improved mean arterial
blood pressure in comparison to vehicle treated rats (p<0.05). Rutin
treatment also resulted in a significant attenuation in the increase in
plasma amino nitrogen concentration, intestinal myeloperoxidase activity,
intestinal lipid peroxidation, infiltration of neutrophils in intestine
and thrombin induced adherence of neutrophils to superior mesentric
artery segments. These results suggest that rutin provides beneficial
effects in part by preserving endothelial function and attenuating
neutrophil accumulation in the ischemic reperfused splanchnic
circulation.