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  • Title: [Effects of L-arginine on the microcirculation of rat island skin flaps after ischemia- reperfusion].
    Author: Chen J, Zhuang HX, Han J, Zhao YY.
    Journal: Di Yi Jun Yi Da Xue Xue Bao; 2005 Jul; 25(7):871-3. PubMed ID: 16027089.
    Abstract:
    OBJECTIVE: To investigate the effects of L-arginine on the microcirculation and survival of rat island skin flaps after ischemia-reperfusion. METHOD: A right lower abdominal island flap was created in SD rats and the microcirculatory blood flow in these flaps measured with laser Doppler velocimetry following L-arginine injection via the contralateral femoral artery. Both NO and malondialdehyde (MDA) levels in the flaps were assayed and the survival of the flaps replanted in situ was evaluated 1 week later. RESULTS: L-arginine treatment caused increase in the microcirculatory blood flow of the flaps and elevation of NO while and decrease of MDA levels. The survival rate of the flaps with L-arginine treatment was significantly higher than the flaps from saline-treated and normal rats. CONCLUSION: L-arginine can improve the survival of island flap through increasing the microcirculatory blood flow and lessening ischemia-reperfusion injury of the flaps.
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