Results 211 to 220 of about 83,159 (258)

Doublet microtubule-associated tektins and enzymes differentially regulate sperm flagellar integrity and motility. [PDF]

Nat Commun
Liu Q, Zhou L, Liang X, Chen P, Li B, Yang S, Liu Y, Zhao H, Hu J, Feng S, Xie S, Wu J, Gui M.   +12 more
europepmc   +1 more source

Sex Determination in Sponges

Molecular Reproduction and Development, Volume 93, Issue 6, June 2026.
ABSTRACT Sex determination in Porifera remains one of the least understood aspects of early metazoan biology despite the group's key phylogenetic position. Sponges display exceptional diversity in sexual systems—ranging from stable gonochorism to sequential hermaphroditism and sex reversal—yet lack morphological dimorphism and any discrete gonadal ...
Jose M. Lorente‐Sorolla, Ana Riesgo
wiley   +1 more source

Effect of nanoliposomal gamma-oryzanol on cryosurvival, oxidative balance, and fertility of frozen-thawed ram spermatozoa. [PDF]

Sci Rep
Abbasi R, Farhadi R, Varjovi SG, Najafi A.   +3 more
europepmc   +1 more source

Effects of Fluorescence‐Activated Cell Sorting on Boar Sperm Motility Subpopulations and In Vitro Embryo Development

Molecular Reproduction and Development, Volume 93, Issue 6, June 2026.
Effects of fluorescence‐activated sperm sorting on IVF outcomes and motility subpopulations. Distinct boar ejaculates were either used directly for in vitro fertilization (IVF; control, unsorted) or processed by fluorescence‐activated cell sorting to generate a sorted sperm population.
Isabel Rodriguez, Tyler Weide, Caleigh E. Grote, Alexandra Keller, Catarina Bittencourt, Emily Schoelerman, Ian Shofner, Aileen F. Keating, Bethany K. Redel, Karl Kerns   +9 more
wiley   +1 more source

Preliminary insights into intratesticular and intraepididymal administration of eugenol: histological alterations and impact on sperm motility in Wistar rats. [PDF]

Anim Reprod
Carvalho RPR, Ribeiro IM, Ramirez-Lopez C, da Silva TB, de Sousa AFR, de Azevedo Viana AG, de Medeiros V, Trindade ACM, Ferreira TRM, Ervilha LOG, Machado-Neves M.   +10 more
europepmc   +1 more source

SOX30 Governs Synaptonemal Complex Assembly and Homologous Recombination in Male Meiosis

Cell Proliferation, Volume 59, Issue 6, June 2026.
The transcription factor SOX30 directly binds promoter regions of SYCE1 and SYCE2 to mediate their transcriptional activation, thereby enabling proper assembly of central elements within the synaptonemal complex. Structural destabilisation of the synaptonemal complex in Sox30 KK spermatocytes triggers synaptic discontinuity, impairs homologous ...
Kangle Liu, Wenfeng Zhang, Xiao Jiang, Jianping Chen, Lei Zhu, Zhonghao Zhang, Jing Gu, Lulu Guo, Lin Ao, Qing Chen, Lei Sun, Yuhan Hu, Xin Wang, Yaxin Liu, Jia Cao, Fei Han, Jinyi Liu   +16 more
wiley   +1 more source

Multiparasitism Resolves the Apparent Paradox of High Male Pheromone Investment Despite Frequent Within‐Host Mating in a Parasitoid

Entomologia Experimentalis et Applicata, Volume 174, Issue 6, Page 579-588, June 2026.
It is unknown why males of the parasitoid wasp Nasonia giraulti produce large amounts of a costly sex pheromone although they were long thought to mate with their females already before emergence within the host. Mated females do no longer respond to the pheromone.
Martina Wendler, Verena Engl, Joachim Ruther   +2 more
wiley   +1 more source

Age-Associated Metabolomic Changes in Human Spermatozoa. [PDF]

Int J Mol Sci
Beg MA, Khan MS, Sheikh IA, Hamoda TAA, Khan MI, Sharma P, Alkhzaim AH, Abuzenada KB, Mohammed A, Ahmad A, Abuzenadah AM, Memili E.   +11 more
europepmc   +1 more source

Photoperiod modulates male sexual maturation in the Emperor tetra (Nematobrycon palmeri), a strictly tropical ornamental fish

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Photoperiod manipulation is widely used to regulate reproduction in temperate fish species, but little is known about its effects in strictly tropical species. This study evaluated whether the Emperor tetra (Nematobrycon palmeri), a tropical ornamental fish, can modulate sexual maturation in response to artificial light regimes.
Lury N. García, Gabriele Lara, Germán E. Merino   +2 more
wiley   +1 more source

The intrinsically disordered protein SPE-56 is required for acrosomal-like exocytosis and fertility in Caenorhabditis elegans. [PDF]

Sci Rep
Gottschling DC, Eiser S, Döring F.
europepmc   +1 more source