[SHR大鼠动脉高血压和稳健性高血压发展过程中大脑皮层毛细血管网络参数]。

M B Plotnikov, O I Aliev, A M Anishchenko, A B Sidekhmenova, A Yu Shamanaev, T I Fomina
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引用次数: 0

摘要

研究对象为高血压发生期(7 ~ 8周)和稳定期(16 ~ 17周)高血压大鼠(SHR品系)和相应年龄的正常高血压大鼠(WKY品系)。利用形态学方法研究了每平方毫米的平均毛细血管数、平均毛细血管直径以及在以下范围内(最大3 μm、3 ~ 5 μm、5 ~ 7 μm和7 ~ 9 μm)估计的毛细血管分布后的毛细血管网络结构。SHRs在高血压发生过程中毛细血管的平均直径和毛细血管网络结构与同年龄WKY大鼠的数值没有差异。SHR大鼠在稳定期高血压期微血管结构和功能异常,表现为平均毛细血管密度和平均毛细血管直径较同年龄WKY大鼠降低,血浆毛细血管数量较WKY大鼠显著增加(2.5倍)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[PARAMETERS OF CEREBRAL CORTEX CAPILLARY NETWORK IN SHR RATS DURING THE DEVELOPMENT OF ARTERIAL HYPERTENSION AND STABLE HIGH BLOOD PRESSURE].

The studies were performed in hypertensive rats (SHR strain) during the period of hypertension development (7-8 weeks) and stable high blood pressure (16-17 weeks) and in normotensive rats (WKY strain) of corresponding ages. The average number of capillaries per square millimeter, the average capillaries diameter, and the capillary network structure following the estimation of capillaries distribution based on capillaries diameter within the following ranges (up to 3, from 3 to 5, from 5 to 7 and from 7 to 9 μm) were investigated using the morphological approach. The average diameter of capillaries and capillary network structure in SHRs during the development of hypertension did not differ from the respective values in WKY rats of the same age. SHR rats showed disturbed microvascularisation by structural and functional rarefaction in the stable high blood pressure period, which was manifested in lower average capillaries density and average capillaries diameter as well as in substantial (2.5 times) increase in plasmatic capillaries as compared to WKY rats of the same age.

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