Comparative flow velocity of erythrocytes and leukocytes in feline retinal capillaries.
Comparative flow velocity of erythrocytes and leukocytes in feline retinal capillaries.
复制标题
猫视网膜毛细血管中红细胞和白细胞的流速比较。
DOI：
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发表时间：
1996
影响因子：
4.4
通讯作者：
J. Ben‐nun
中科院分区：
文献类型：
--
作者：
J. Ben‐nun
目的
研究猫眼同一视网膜毛细血管中红细胞和白细胞的流速。
方法
来自猫的血细胞被荧光标记染色并重新注射到动物体内。光电装置与高灵敏度 CCD 相机相结合，检测来自标记血细胞的荧光信号。信号存储在录像带（VHS-PAL，每秒 25 帧）上，随后进行数字分析。鉴定出二十个白细胞，每个白细胞流经单独的视网膜毛细血管通路。根据其形态复杂性，毛细血管通路分为简单毛细血管通路和复杂毛细血管通路。对 10 条简单毛细血管通路和 10 条复杂毛细血管通路进行了观察。记录并分析每条毛细血管路径中 1 个白细胞和 20 个红细胞的通过情况。血细胞速度比是根据每个细胞完成毛细血管通路所需的帧数计算的（较高的速度 = 较少的帧）。
结果
在短毛细血管通路和长毛细血管通路中，红细胞的移动速度都比白细胞快。同一毛细血管通路中红细胞-白细胞通道的帧比（平均百分比+/-标准差）在短通路中为84.55%+/-2.0%，在复杂通路中为66.21%+/-7.1%。在复杂的毛细血管通路的循环部分中注意到白细胞流动的主要减速。
结论
在给定的视网膜毛细血管通路中，白细胞的速度比红细胞的速度慢。毛细血管通路的结构复杂性对白细胞速度的影响比对红细胞速度的影响更大。
PURPOSE
To study the flow velocity of erythrocytes and leukocytes in the same retinal capillaries in cat eyes.
METHODS
Blood cells from cats were stained with fluorescent label and reinjected into the animals. An electro-optical device combined with a highly sensitive CCD camera detected the fluorescent signal from the labeled blood cells. The signal was stored on a videotape (VHS-PAL, 25 frames per second) and later analyzed digitally. Twenty leukocytes were identified, each flowing through a separate retinal capillary pathway. The capillary pathways were categorized as simple and complex according to their morphologic complexity. Observations were made on 10 simple and 10 complex capillary pathways. The passages of one leukocyte and 20 erythrocytes in each capillary path were recorded and analyzed. The blood cell velocity ratio was calculated from the number of frames needed for each cell to complete a passage through the capillary pathway (higher velocity = fewer frames).
RESULTS
The erythrocytes traveled faster than the leukocytes in both the short and long capillary pathways. The frames ratio (mean percent +/- standard deviation) of erythrocyte-leukocyte passage in the same capillary pathway was 84.55% +/- 2.0% in the short ones and 66.21% +/- 7.1% in the complex ones. The main deceleration in leukocytes flow was noted in the looping parts of the complex capillary pathways.
CONCLUSIONS
The velocity of leukocytes is slower than that of erythrocytes in a given retinal capillary pathway. The structural complexity of a capillary pathway has a greater effect on leukocytic velocity than on erythrocytic velocity.
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影响因子：
4.4
作者：
Sinclair,SH;Azar-Cavanagh,M;Soper,KA;Tuma,RF;Mayrovitz,HN
通讯作者：
Mayrovitz,HN
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影响因子：
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作者：
Grunwald,JE;Piltz,J;Patel,N;Bose,S;Riva,CE
通讯作者：
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正常人视网膜中的血流。
影响因子：
4.4
作者：
Feke,GT;Tagawa,H;Deupree,DM;Goger,DG;Sebag,J;Weiter,JJ
通讯作者：
Weiter,JJ
影响因子：
13.7
作者：
Khoobehi,B;Peyman,GA
通讯作者：
Peyman,GA