Results 41 to 50 of about 17,704 (256)
Seminal CD38 Enhances Human Sperm Capacitation through Its Interaction with CD31. [PDF]
PLoS ONE, 2015 Human sperm have to undergo a maturational process called capacitation in the female reproductive tract. Capacitation confers upon the sperm an ability to gain hypermotility and undergo acrosome reaction.
Byung-Ju Kim +4 more
doaj +1 more source
Effect of estrogens on boar sperm capacitation
Reproductive Biology and Endocrinology, 2010 Background Mammalian sperm must undergo a series of controlled molecular processes in the female reproductive tract called capacitation before they are capable of penetrating and fertilizing the egg.
Ded Lukas +4 more
doaj +1 more source
Specific lectin binding sites during in vitro capacitation and acrosome reaction in boar spermatozoa
Italian Journal of Animal Science, 2021 Sperm glycocalyx and plasma membrane undergo outstanding modifications during fertilization. However, it is unclear how in vitro capacitation time and acrosome reaction affect the specific location of boar sperm glycoconjugates.
Laura Robles-Gómez +6 more
doaj +1 more source
The Modulation of Functional Status of Bovine Spermatozoa by Progesterone
Animals, 2021 The aim of this study is to identify the effects of progesterone (PRG) on the capacitation and the acrosome reaction in bovine spermatozoa. The fresh sperm samples were incubated with and without capacitation inductors (heparin, dibutyryl cyclic ...
Vitaly Denisenko +5 more
doaj +1 more source
Reorganization of mouse sperm lipid rafts by capacitation [PDF]
, 2006 One of the hallmarks of mammalian sperm capacitation is the loss of cholesterol from the plasma membrane. Cholesterol has been associated with the formation of detergent insoluble membrane microdomains in many cell types, and sperm from several mammalian
Thomas, Monzy +2 more
core +2 more sources
Biology Open, 2016 Several focal adhesion proteins are known to cooperate with integrins to link the extracellular matrix to the actin cytoskeleton; as a result, many intracellular signaling pathways are activated and several focal adhesion complexes are formed.
Ana L. Roa-Espitia +7 more
doaj +1 more source
Studies on the sperm reservoir of the pig oviduct [PDF]
, 2003 During sperm transport in the female pig a proportion of spermatozoa are arrested, often for 24 h or more, in a particular segment of the utero-tubal junction (UTJ) and the adjacent tubal isthmus, where a sperm reservoir (SR) is built up.
Tienthai, Paisan
core
PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility
Advanced Science, EarlyView.PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao +7 more
wiley +1 more source
AnimalsThis work sought to test the positive effect of red LED light on frozen bovine sperm resistance to thawing in suboptimal conditions. Moreover, a preliminary study explores whether this improvement could have any repercussions on in vivo fertilizing ...
Olga Blanco-Prieto +13 more
doaj +1 more source
Cells, 2021 The proteasome increases its activity at the onset of sperm capacitation due to the action of the SACY/PRKACA pathway; this increase is required for capacitation to progress. PRKA activity also increases and remains high during capacitation.
Héctor Zapata-Carmona +3 more
doaj +1 more source