KMID : 0903520090520010022
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology 2009 Volume.52 No. 1 p.22 ~ p.27
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Efficacy of Aspirin on Improvement of Peripheral Blood Circulation in Mice
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Yoo Bo-Kyung
Ko Byoung-Seob Ma Jin-Yeul Jeon Won-kyung
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Abstract
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An in vivo model for assessing the efficacy of aspirin on the improvement of peripheral circulatory was developed by obtaining the cold-induced peripheral blood flow in mice using laser Doppler flowmetry (LDF) and temperature-controlled chambers. ICR mice (n=6) were placed in a temperature-controlled chamber and anesthetized with 1.5% isoflurane. LDF was used to measure the peripheral blood flow during whole-body warming for 10 min (37¡É, baseline) and cooling for 40 min (until 13¡É). Peripheral blood flow ratio showed significant difference between baseline and whole-body cooling after a lapse of 20 (0.92¡¾0.20) and 40 min (0.33¡¾0.13, p<0.001). Peripheral blood flows of mice administered aspirin (100 mg/kg) or control substance (saline) were measured. Mean peripheral flow ratio decrement of the hind foot was significantly higher in aspirin (0.23¡¾0.10, p<0.05) than the control substance (0.15¡¾0.04). These findings indicate that wholebody cooling is characterized by peripheral circulatory disturbance, which also influences the efficacy of aspirin in improving the peripheral blood circulation.
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KEYWORD
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aspirin, cold-induced, in vivo model, laser Doppler flowmetry, peripheral blood flow
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