Results 171 to 180 of about 84,845 (296)

Emerging peptide and neuroendocrine strategies for TRT-induced reproductive suppression and functional male hypogonadism: a narrative review. [PDF]

Front Reprod Health
Cretu AM, Kamar AAM, Ciobica A, Puia D, Doroftei M, Doroftei B.   +5 more
europepmc   +1 more source

Occupational Physical Activity Is Negatively Associated With Semen Quality

Andrology, EarlyView.
ABSTRACT Background Lifestyle factors have been associated with semen quality and have been implicated in the reported global decline in semen parameters. Moderate physical activity has been linked to improved semen quality; however, the association between occupational physical activity and semen quality is limited.
Michal Efrat, Sharon Barak, Anat Stein, Haim Pinkas, Ron Unger, Ruth Birk   +5 more
wiley   +1 more source

Unveiling novel insights into gene expression in monkey testes through single-nucleus-based analysis. [PDF]

Front Cell Dev Biol
Zhang Y, Wei S, Zou R, Li Y, Jiang N, Li Z, Ma C, Wang Y, Ben J, Lv L, Yan F.   +10 more
europepmc   +1 more source

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

Andrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

Molecular genetics of meiotic initiation in mammals. [PDF]

Biol Reprod
Wenner SM, Ola OM, Pfaltzgraff NG, Ushuhuda EG, Mikedis MM.   +4 more
europepmc   +1 more source

Associations Between Sperm DNA Fragmentation and Lifestyle Factors

Andrology, EarlyView.
ABSTRACT Background Sperm DNA fragmentation index (DFI) has been proposed as a supplementary biomarker to traditional semen parameters in the evaluation of male infertility. However, its determinants and clinical relevance remain unclear, particularly regarding modifiable lifestyle factors.
Lana Haval Mairof Adams, Lærke Priskorn, Joan‐Carles Arce, Heidi Aasted, Elisabeth Carlsen, Raphael Burkan Al‐Najaar, Anders Juul, Niels Jørgensen   +7 more
wiley   +1 more source

AID-Mediated Protein Knockdown Reveals the Requirement of NANOS2 in Prenatal Gonocytes for Establishing Functional Spermatogonial Stem Cells. [PDF]

Dev Growth Differ
Saga Y, Wu Q.
europepmc   +1 more source

Biology of spermatogenesis [PDF]

Seminars in Cell & Developmental Biology, 2014
openaire   +2 more sources

Spatiotemporal Expression of ARRDC5 in Mammalian Spermatogenesis

Andrology, EarlyView.
ABSTRACT Background Spermiogenesis is the final phase of sperm development during which haploid round spermatids transform into specialized spermatozoa and occurs across distinct stages of sperm production in the seminiferous epithelium. Abnormalities in this process lead to malformations and an inability of sperm to fertilize eggs.
LeeLa D. Robinson, Jon M. Oatley
wiley   +1 more source

Environmental stress and stallion fertility: mechanistic insights, evidence gaps, and functional implications. [PDF]

Front Vet Sci
Tamulionytė-Skėrė R, Baltaduonytė R, Pockevičius A, Pelenė U, Šlyžienė B, Palubinskas G.   +5 more
europepmc   +1 more source