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两种不同氧张力下仓鼠颊囊小动脉血流的比较。

Comparison of arteriolar blood flow in the hamster cheek pouch at two different oxygen tensions.

作者信息

Svensjö E, Tuma R F, Arfors K E

出版信息

Acta Physiol Scand. 1977 Aug;100(4):404-11. doi: 10.1111/j.1365-201X.1977.tb00003.x.

DOI:10.1111/j.1365-201X.1977.tb00003.x
PMID:906848
Abstract

Red cell velocity and diameter were measured in arterioles of the hamster cheek pouch microvasculature. The cheek pouch tissue was exposed to two different oxygen tensions, PO2 less than 30 mmHg and PO2 greater than 150 mmHg. Blood flow was calculated from velocity and diameter measurements and was found to be significantly reduced (44%) when cheek pouch was exposed to room oxygen superfusant. This reduction was the combined result of a significant decrease in both diameter (17%) and red cell velocity (17%) as compared to the measurements during the initial low oxygen period.

摘要

在仓鼠颊囊微血管系统的小动脉中测量了红细胞速度和直径。将颊囊组织暴露于两种不同的氧张力下,即氧分压低于30 mmHg和氧分压高于150 mmHg。根据速度和直径测量值计算血流量,发现当颊囊暴露于室内氧气灌流液时,血流量显著降低(44%)。与初始低氧期的测量值相比,这种降低是直径(17%)和红细胞速度(17%)均显著下降的综合结果。

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