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Abstract

《亚洲男性学杂志》 2010; 12 (4) : 591-598

小鼠全身热接触引起附睾尾部精子细胞膜改变

Harsha Wechalekar, Brian P. Setchell, Eleanor J. Peirce, Mario Ricci, Chris Leigh, William G. Breed (澳大利亚)

本文探讨了全身热接触小鼠附睾尾部中精子的变化。将C57BL/6小鼠(n = 7)饲养于37ºC–38ºC下,每天8小时,连续三天,对照组小鼠(n = 7)饲养于23ºC–24ºC下。在末次热疗后第16小时从小鼠附睾尾部获取精子。结果显示两组精子数相似(P = 0.23),但实验组经热疗后运动精子百分数显著降低(P < 0.0001)。用Annexin V-PE染色检测精子细胞膜的变化,发现磷脂酰丝氨酸有从精子质膜内侧向外侧的外化表现,7-氨基放线菌素D(7-ADD)在质膜被破坏时则粘着在精核上。比较热疗组和对照组小鼠的对Annexin V–PE染色和/或7-AAD呈阳性的精子百分比,结果显示小鼠全身热接触于37ºC–38ºC会引起附睾精子细胞膜的改变,从而可能会导致精子凋亡。

关键词:实验室小鼠,精子细胞膜破坏,整体热接触

Copyright 1999-2012    Shanghai Materia Medica, Shanghai Jiao Tong University.    All rights reserved