Combined albumin and bicarbonate induces head-to-head sperm agglutination which physically prevents equine sperm–oviduct binding
نویسندگان
چکیده
منابع مشابه
O-10: Formation and Molecular Composition of The Sperm Head to Tail Coupling Apparatus
Background According to a worldwide survey in 2010 infertility affects 48.5 million of couples. In roughly half of the cases infertility is provoked by the male mate. Thus, a significant percentage of young men are infertile but the underlying causes are mostly unknown. Male fertility and reproduction success critically depends on proper formation of the mature sperm. Transmission of the geneti...
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he practice of head deformation by pressure to an infant's skull dates back to 2000 BC when the Ancient Egyptians used head binding to produce a cosmetically pleasing and fashionable skull shape. 1 With an increasing incidence of plagiocephaly (asymmetric skull) this practice, with a modern slant, is re-emerging. A simple web search resulted in five " paediatric offices " offering such a servic...
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Mammalian sperm cells are activated prior to fertilization by high bicarbonate levels, which facilitate lipoprotein-mediated cholesterol efflux. The role of bicarbonate and cholesterol acceptors on the cholesterol organization in the sperm plasma membrane was tested. Bicarbonate induced an albumin-independent change in lipid architecture that was detectable by an increase in merocyanine stainin...
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An example of the ;albumin' auto-agglutinating phenomenon is reported. This was found in the serum of a man dying from carcinoma of the stomach with liver secondaries. It is suggested that the serum factor is of a protein (probably globulin) nature, and may have been produced by the diseased liver.
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ژورنال
عنوان ژورنال: REPRODUCTION
سال: 2016
ISSN: 1470-1626,1741-7899
DOI: 10.1530/rep-15-0471