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Apoptosis. 2003 Dec;8(6):665-71.

Apoptosis does not affect the vasculature of the corpus luteum of pregnancy in the rat.

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School of Anatomy and Human Biology, Faculty of Physical and Life Sciences, The University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia.


There has been much research into the mechanics of angiogenesis and many studies have demonstrated that newly formed vessels regress during angiogenesis. This vascular involution has been shown to involve basement membrane dissolution and endothelial cell apoptosis. The corpus luteum provides an ideal in vivo model to study physiologic angiogenesis and studies have shown that involution of newly formed vessels occurs during corpus luteum regression. However, few studies to date have investigated the role of apoptosis on the vasculature which develops during pregnancy. By the use of the TUNEL technique to detect apoptotic cells and immunohistochemistry to distinguish between endothelial cells and pericytes, this present study demonstrated that the vasculature of the corpus luteum of pregnancy in the rat does not undergo apoptosis.

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