Journal ArticleDOI
Lipid changes of goat sperm plasma membrane during epididymal maturation
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TLDR
The altered lipid profile of the mature sperm membrane leads to changes in its fluidity that play an important role in determining the structure and functions of the biomembrane.About:
This article is published in Biochimica et Biophysica Acta.The article was published on 1991-01-30. It has received 76 citations till now. The article focuses on the topics: Sperm plasma membrane & Membrane lipids.read more
Citations
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Journal ArticleDOI
Targeted disruption of hormone-sensitive lipase results in male sterility and adipocyte hypertrophy, but not in obesity
Jun-ichi Osuga,Shun Ishibashi,Teruaki Oka,Hiroaki Yagyu,Ryu-ichi Tozawa,Akihisa Fujimoto,Futoshi Shionoiri,Naoya Yahagi,Frederic B. Kraemer,Osamu Tsutsumi,Nobuhiro Yamada +10 more
TL;DR: It is shown that HSL is required for spermatogenesis but is not the only enzyme that mediates the hydrolysis of triacylglycerol stored in adipocytes, and that adipocytes were significantly enlarged and the size differences between cell and tissue suggests the heterogeneity of adipocytes.
Journal ArticleDOI
Bicarbonate stimulated phospholipid scrambling induces cholesterol redistribution and enables cholesterol depletion in the sperm plasma membrane
Frits M. Flesch,Jos F. Brouwers,Patricia F. E. M. Nievelstein,Arie J. Verkleij,Lambert M.G. van Golde,Ben Colenbrander,Barend M. Gadella +6 more
TL;DR: A model is proposed in which phospholipid scrambling induces the formation of an apical membrane raft in the sperm head surface that enables albumin mediated efflux of cholesterol.
Journal ArticleDOI
A porcine homolog of the major secretory protein of human epididymis, HE1, specifically binds cholesterol.
Naomichi Okamura,Sachiko Kiuchi,Michiko Tamba,Takayuki Kashima,Shinsuke Hiramoto,Tadashi Baba,Françoise Dacheux,Jean-Louis Dacheux,Yoshiki Sugita,Yin-Zhe Jin +9 more
TL;DR: It was found that the He1 homolog is a major cholesterol-binding protein in the porcine epididymal fluid and the possibility that the HE1 homology is involved in the regulation of the lipid composition of the sperm membranes during the maturation in epidIDymis is discussed.
Journal ArticleDOI
The epididymis and sperm maturation: a perspective.
TL;DR: In common mammals, sperm leaving the testis are incapable of fertilizing a female gamete, and when assessing sperm maturation it is necessary to establish the proportion of sperm that has completed and retained all steps of maturation necessary to achieve fertilization of oocytes under the conditions imposed.
References
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Journal ArticleDOI
Participation of membrane sulfhydryl groups in the epididymal maturation of human and rabbit spermatozoa.
TL;DR: In this paper, carboxyphenylmaleimide (CPhM) was used to measure changes in the concentration of SH groups on the human and rabbit spermatozoal membrane and during epididymal maturation.
Journal ArticleDOI
Hydrocarbons and wax esters from seven species of mangrove leaves
Suniti Misra,Suniti Misra,Ashis K. Datta,Subhasish Chattopadhyay A. Choudhury,Subhasish Chattopadhyay A. Choudhury,Amitabha Ghosh +5 more
TL;DR: Seven species of fresh mangrove leaves were found to contain saturated normal and branched chain hydrocarbons, mostly between C 16 and C 36 with both odd and even carbon numbers.
Journal ArticleDOI
Phospholipid composition of epididymal spermatozoa prepared by density gradient centrifugation.
R. M. C. Dawson,Trevor W. Scott +1 more
TL;DR: It was concluded that rat spermatozoa acquire tnis phospho-lipid during their passage through the much convoluted ductus epididymis, and it could not be decided with certainty whether the differences in lecithin and phosphatidylethanolamine were due to phospholipids from the epidIDymal tissue contaminating the spermatozosal preparations.
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Sterols and fatty acids from three species of mangrove
TL;DR: The results obtained by carrying out plate lipolysis for 45 min at 40° compared well with those produced by conventional chemical hydrolysis.
Journal ArticleDOI
Stimulation of forward motility of goat cauda epididymal spermatozoa by a serum glycoprotein factor.
TL;DR: Blood sera of humans, rats, goats, and buffalo have been shown to possess a forward motility-stimulating factor (FMSF) that markedly stimulated goat cauda epididymal spermforward motility, as assayed by a microscopic method in the presence of epidIDymal plasma.
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