Results 111 to 120 of about 17,497 (237)

Exceptional sperm cooperation in the wood mouse [PDF]

, 2002
Spermatozoa from a single male will compete for fertilization of ova with spermatozoa from another male when present in the female reproductive tract at the same time.
AH Harcourt, BA Shepherd, C Holt, D Haig, DM De Kretser, E Kim, F Hayashi, GF Friend, Harry Moore, HD Moore, HD Moore, HD Moore, HD Moore, J Sivinski, JM Bedford, Katerina Dvoráková, KC Kleene, LR Fraser, Nicholas Jenkins, PM Wassarman, R Dawkins, R Trivers, R Yanagimachi, RR Baker, RR Baker, TE Tew, TR Birkhead, TR Birkhead, V Hanak, WD Hamilton, WG Breed, William Breed, X Xu   +32 more
core   +1 more source

Histological characterisation of gonadal sex differentiation in Malabar red snapper (Lutjanus malabaricus) for aquaculture advancement

Journal of Fish Biology, EarlyView.
Abstract The Malabar red snapper (Lutjanus malabaricus) is a high‐value tropical marine species receiving growing attention for aquaculture development in Singapore and Southeast Asia. At present, seed production relies primarily on uncontrolled mass spawning in sea cages, a practice that lacks consistency, biosecurity and control of genetic ...
Bing Liang, Dean R. Jerry, Joyce Koh, Purushothaman Kathiresan, Celestine Terence, Xueyan Shen, Grace Loo, Shubha Vij, Jose A. Domingos   +8 more
wiley   +1 more source

Efek amfetamin terhadap ultrastruktur sel spermatogenetik tikus

Journal of Biological Researches, 2001
The research was conducted to evaluate the effect of amphetamine as pshycostimulan drug on ultrastructure spermatogenic cells of male rats (Rattus norvegicus L.). Ultrastructure spermatogenic cells described from six male rats of Wistar strain. They were
Alfiah Hayati
doaj   +1 more source

Mouse tafazzin is required for male germ cell meiosis and spermatogenesis [PDF]

, 2015
Barth syndrome is an X-linked mitochondrial disease, symptoms of which include neutropenia and cardiac myopathy. These symptoms are the most significant clinical consequences of a disease, which is increasingly recognised to have a variable presentation.
Bryson, S., Cadalbert, L.C., Ghaffar, F.N., Gottlieb, E., Stevenson, D., Strathdee, D., Vaz, F.M.   +6 more
core   +3 more sources

Maternal Chrono‐Nutrition and Placental DNA Methylation: The BiSC Study

Molecular Nutrition &Food Research, Volume 70, Issue 9, 13 May 2026.
This is the first study to examine how the timing of a mother's meals during pregnancy relates to changes in placental DNA methylation, an epigenetic mark. We found that the timing of the last daily meal was most important. Some epigenetic changes were linked to genes involved in placental function and development, and the long‐term health consequences
Joana Llauradó‐Pont, Sofia Aguilar‐Lacasaña, Marta Cosin‐Tomas, Jordi Julvez, Oren Contreras‐Rodríguez, Manolis Kogevinas, Kyriaki Papantoniou, Elisa Gallo, Barbara N Harding, Martine Vrijheid, Payam Dadvand, Mariona Bustamante, Camille Lassale   +12 more
wiley   +1 more source

From “Passive Supplementation” to “Active Repair”: Melatonin Reshapes the Treatment Paradigm for Late‐Onset Hypogonadism by Targeting Leydig Cell Senescence

Aging Cell, Volume 25, Issue 5, May 2026.
Melatonin restores testosterone production in aging Leydig cells by targeting key pathological drivers, particularly oxidative stress and mitochondrial dysfunction. This approach offers a fundamental strategy to reshape the Late‐onset hypogonadism treatment paradigm.
Hui Wu, Gang Ning, Mintao Jian, Ajian Peng, Haoyu Wang, Bonan Li, Xing Zhou   +6 more
wiley   +1 more source

Pharmacogenetics of follicle‐stimulating hormone action in the male

Andrology, Volume 14, Issue 4, Page 1064-1072, May 2026.
Abstract Male factor infertility (MFI) is involved in half of the cases of couple infertility. The follicle‐stimulating hormone (FSH) therapy is considered efficient to improve semen parameters and pregnancy rate in patients with idiopathic MFI, following the lesson learned from hypogonadotropic hypogonadism.
Andrea Graziani, Giuseppe Grande, Raffele Scafa, Riccardo Selice, Andrea Garolla, Maria Santa Rocca, Cinzia Vinanzi, Alberto Ferlin   +7 more
wiley   +1 more source

PFOS-mediated suppression of SOX30 impairs DNA double-strand break repair leading to male reproductive dysfunction

Ecotoxicology and Environmental Safety
Perfluorooctanesulfonic acid (PFOS), a persistent organic pollutant and representative per- and polyfluoroalkyl substance (PFAS), is ubiquitously detected in the environment and human tissues, and mounting evidence has implicated it in male reproductive ...
Kangle Liu, Shijun He, Yuhan Hu, Yaxin Liu, Lei Zhu, Wenfeng Zhang, Xiao Jiang, Jing Gu, Lulu Guo, Zhonghao Zhang, Qing Chen, Lei Sun, Jia Cao, Lin Ao, Jinyi Liu   +14 more
doaj   +1 more source

The effect of the Tribulus terrestris extract on spermatogenesis in the rat [PDF]

فصلنامه دانشگاه علوم پزشکی جهرم, 2012
According to our antecedents, in addition to other pharmacological properties, Tribulus terrestris increases sexual functioning and libido in men. Due to the fact that the benefits of herbal drugs should be approved clinically in the laboratory, the ...
Hojatolah Karimi Jashni, Samira Malekzadeh Shiravani, Farhang Hooshmand   +2 more
doaj  

Metaphase Configurations in Drosophila: A Comparison of Endemic Hawaiian Species and Non-Endemic Species [PDF]

, 1976
The metaphase configurations of 400 strains from 63 species of Hawaiian Drosophila were determined from squash preparations of larval brain tissue or spermatogenic cells from adult testes.
Clayton, Frances E.
core   +2 more sources