SPINAL-CORD BLOOD-FLOW IN THE RAT UNDER NORMAL PHYSIOLOGICAL CONDITIONS
SPINAL-CORD BLOOD-FLOW IN THE RAT UNDER NORMAL PHYSIOLOGICAL CONDITIONS
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DOI：
10.1227/00006123-199012000-00004
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发表时间：
1990-12-01
期刊：
影响因子：
4.8
通讯作者：
ARBIT, E
中科院分区：
文献类型：
--
作者：
RUBINSTEIN, A;ARBIT, E
采用氢清除技术，在常温、常二氧化碳、常氧和正常血压条件下，测定一组大鼠的局部脊髓血流量（SCBF）。颈部白色物质中的局部SCBF为26.8 ±。1（SE）ml/100 g/min，颈灰质53.6 ±。2.5;胸部白色物质为22.2 ±。2.4 ml/100 g/min，胸灰质为41.2 ± 0.05。12/6 ml/100 g/min;在腰椎灰质中为52.3 ±-。1.9在9只大鼠中研究了血压变化对SCBF（自动调节）的影响。我们已经观察到，SCBF在45至165 mm Hg的血压范围内保持相对恒定，并假设低于或高于该范围的被动流动。
Regional spinal cord blood flow (SCBF) was measured in a group of rats under conditions of normothermia, normocarbia, normoxia, and normal blood pressure, using the hydrogen clearance technique. Regional SCBF in the cervical white matter was 26.8 .+-. 1 (SE) ml/100 g/min and in the cervical gray matter 53.6 .+-. 2.5; in the thoracic white matter it was 22.2 .+-. 2.4 ml/100 g/min and in the thoracic gray matter 41.2 .+-. 12/6 ml/100 g/min; and in the lumbar gray matter it was 52.3 .+-. 1.9 ml/100 g/min. The effect of changes in blood pressure on SCBF (autoregulation) was investigated in nine rats. We have observed that SCBF remains relatively constant in the blood pressure range of 45 to 165 mm Hg and assumes a passive flow below or above this range.