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- W2004757799 abstract "Presenilin-1 (PS1) is a gene responsible for the development of early-onset familial Alzheimer's disease. To explore the potential roles of PS1 in vascular development, we examined the vascular system of mouse embryos lacking PS1. PS1-deficient embryos exhibited cerebral hemorrhages and subcutaneous edema by mid gestation. Immunohistochemical analysis revealed vascular remodeling failure in the stomach and trunk dorsal median region of the skin and insufficient formation of the perineural plexus around the spinal cord of the PS1 mutant embryos. The number of capillary sprouting sites reduced and the capillary diameter increased in the mutant brains, especially at the amygdaloid and striatal regions. Endothelial cells in the sprouting capillaries of the mutant mice showed abnormal morphologies such as multiplication, apoptotic and necrotic images, in contrast to pericytes showing a normal appearance. An in vitro assay using para-aortic splanchnopleural mesoderm (P-Sp) revealed aberrant angiogenesis in the explant culture from the mutant. These findings suggest the essential roles of PS1 in angiogenesis." @default.
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- W2004757799 date "2003-06-01" @default.
- W2004757799 modified "2023-10-15" @default.
- W2004757799 title "Abnormal blood vessel development in mice lacking presenilin-1" @default.
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- W2004757799 doi "https://doi.org/10.1016/s0925-4773(03)00064-9" @default.
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