Frozen Semen Characteristics of Limousin Bull at Different Ages
Tropical Animal Science Journal, 2023 Strategies to increase the population and productivity of beef cattle can be implemented through reproductive management, such as artificial insemination (AI) using frozen semen.
A. Baharun +8 more
doaj +1 more source
Evidence for a GABAergic system in rodent and human testis: Local GABA production and GABA receptors [PDF]
, 2003 The major neurotransmitter of the central nervous system, gamma-aminobutyric acid (GABA), exerts its actions through GABA(A), GABA(B) and GABA(C) receptors.
Calandra, Ricardo S. +7 more
core +2 more sources
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
Correlation of sperm acrosome integrity rate with semen parameters and in vitro fertilization outcomes [PDF]
Journal of Men's HealthBackground: This study aimed to evaluate the application value of sperm acrosome integrity rate in male fertility assessment, its impact on in vitro fertilization (IVF) outcomes, and its predictive value for low IVF fertilization rates.
Lin Yu +6 more
doaj +1 more source
In-vitro application of pentoxifylline preserved ultrastructure of spermatozoa after vitrification in asthenozoospermic patients [PDF]
, 2017 PURPOSE: To evaluate the effect of in vitro application of pentoxifylline (PX) on sperm parameters and ultrastructure after vitrification in asthenozoospermic patients. MATERIALS AND METHODS: A total of 30 asthenozoospermic semen samples (aged 25-45
Khalili, Ma +7 more
core
Structural prediction and in silico physicochemical characterization for mouse caltrin I and bovine caltrin proteins [PDF]
, 2016 It is known that caltrin (calcium transport inhibitor) protein binds to sperm cells during ejaculation and inhibits extracellular Ca2+ uptake. Although the sequence and some biological features of mouse caltrin I and bovine caltrin are known, their ...
Coronel, Carlos Enrique +2 more
core +2 more sources
Testicular expression of TDRD1, TDRD5, TDRD9 and TDRD12 in azoospermia. [PDF]
, 2020 BACKGROUND: Tudor domain-containing proteins (TDRDs) play a critical role in piRNA biogenesis and germ cell development. piRNAs, small regulatory RNAs, act by silencing of transposons during germline development and it has recently been shown in animal ...
Aghaei, M +9 more
core +1 more source
Oocyte–cumulus cell interaction: a key factor in early embryo development
Biological Reviews, EarlyView.ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido +2 more
wiley +1 more source
Food Safety and Health, EarlyView.Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad +3 more
wiley +1 more source
The tyrosine kinase FER is responsible for the capacitation-associated increase in tyrosine phosphorylation in murine sperm [PDF]
, 2016 Sperm capacitation is required for fertilization. At the molecular level, this process is associated with fast activation of protein kinase A. Downstream of this event, capacitating conditions lead to an increase in tyrosine phosphorylation. The identity
Alvau, Antonio +13 more
core +1 more source