Kozlov V I, Litvin F B, Siniakov V S, Vdovichenko S A
Biull Eksp Biol Med. 1988 Sep;106(9):309-11.
The sensitivity of rat's microvessels of microcirculatory bed of brain's pia matter was studied by helium-neon laser radiation. Changes in the reactivity by the microscopy findings were studied on the 7, 30, 45, 60, 90th days of animals postnatal development. Laser radiation was used during 30 min. Local changes in all components of the microcirculatory bed were fixed. It is mentioned that in adult rat the expressiveness of arteriole's local widening reaction in the radiated place reduces, but the degree of the reduction is below or over the radiated place, on the contrary, increases. The arteriole diameter in 30-day old rats increases to 59% in comparison to the initial level, and 90th day old animals--to 16%. The degree of reaction's expressiveness depends upon the microvessel diameter and the animal's age.
采用氦氖激光辐射研究了大鼠软脑膜微循环床微血管的敏感性。通过显微镜观察结果，研究了动物出生后第7、30、45、60、90天反应性的变化。激光辐射持续30分钟。记录了微循环床所有成分的局部变化。结果表明，成年大鼠辐射部位小动脉局部扩张反应的表现程度降低，但在辐射部位以下或以上程度反而增加。与初始水平相比，30日龄大鼠的小动脉直径增加了59%，90日龄动物增加了16%。反应表现程度取决于微血管直径和动物年龄。
