Results 101 to 110 of about 36,690 (245)

Sex determination in mythology and history [PDF]

, 2005
The history of ideas on how the sexes became divided spans at least three thousand years. The biblical account of the origin of Eve, and the opinions of the philosophers of classical Greece, have unexpected bearings on present-day ideas.
Mittwoch, U
core   +2 more sources

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

Andrology, EarlyView.
ABSTRACT Background The main functions of testes are sperm production and androgen secretion in testicular befitting microenvironment. Excessive level of the reactive oxygen species (ROS) from metabolism and cellular events can lead to oxidative stress (OS) and ferroptosis, which injure the functions of mitochondria and endoplasmic reticulum (ER) of ...
Shuning Yuan, Nini Wei, Weiwei Ma, Mengting Hu, Bei Zhang, Li Gao, Chao Gao, Xiaoyu Yang, Yan Meng, Jiayin Liu, Yugui Cui   +10 more
wiley   +1 more source

Identification of a component of Drosophila polar granules [PDF]

, 1988
Information necessary for the formation of pole cells, precursors of the germ line, is provided maternally and localized to the posterior pole of the Drosophila egg.
Ackerman, Larry, Barbel, Sandra, Hay, Bruce A., Jan, Lily Y., Jan, Yuh Nung   +4 more
core  

Testicular endocrine activity is upregulated by D-Aspartic acid in the green frog Rana esculenta [PDF]

, 2004
This study investigated the involvement of D-aspartic acid (D-Asp) in testicular steroidogenesis of the green frog Rana esculenta and its effect on stimulation of thumb pad morphology and glandular activity, a typical testosterone-dependent secondary ...
ASSISI, LOREDANA, F. Raucci, M. M. Di Fiore, P. Spinelli, S. D’Aniello, V. Botte   +5 more
core   +1 more source

Seasonal evaluation of spermatogenesis of the hematophagous bat Desmodus rotundus in the Caatinga biome.

PLoS ONE, 2020
This study was aimed to characterize the spermatogenic process and its seasonal variation in Desmodus rotundus, in the Caatinga biome, a water-limited ecosystem, with marked water restriction during most of the year.
Soraia F M Silva, Laryssa C A Oliveira, Fernanda C R Dias, Eugenia Cordero-Schmidt, Juan C Vargas-Mena, Ingrid G M Silva, Sônia N Báo, João L S Luna, Ruthnaldo R M Lima, Raimundo F A Júnior, Naisandra B S Farias, Carlos E B Moura, Sérgio L P Matta, Danielle B Morais   +13 more
doaj   +1 more source

Testis‐Enriched F‐Box Protein FBXO39 Is Important for Spermiogenesis and Male Fertility in Mice

Andrology, EarlyView.
ABSTRACT Background The SCF (Skp–Cullin–F‐box) complex is a major class of E3 ubiquitin ligases. F‐box proteins constitute the SCF complex and play a critical role in recognizing substrates for ubiquitination. In mice, several F‐box proteins, including FBXO36 and FBXO39, are predominantly expressed in testes.
Yuki Kaneda, Haruhiko Miyata, Masahito Ikawa   +2 more
wiley   +1 more source

Non-random chromosome positioning in mammalian sperm nuclei, with migration of the sex chromosomes during late spermatogenesis [PDF]

, 2005
Chromosomes are highly organized and compartmentalized in cell nuclei. The analysis of their position is a powerful way to monitor genome organization in different cell types and states.
Abeydeera, L, Bridger, JM, Foster, H, Griffin, DK   +3 more
core   +1 more source

Cyclic Treatment With WIN 18,446, a Potential Male Contraceptive, is as Effective as Continuous Treatment for Suppression of Spermatogenesis in Mice

Andrology, EarlyView.
ABSTRACT Background Retinoic acid plays a critical role in spermatogenesis during both spermatogonial differentiation and spermiation. Mice lacking enzymes that synthesize retinoic acid, Aldh1a1/1a2, in the testes are infertile. WIN 18,446 reversibly inhibits spermatogenesis by inhibiting ALDH1A1/1A2 and is a promising approach to male contraception ...
Jisun Paik, Jessica M. Snyder, Haley A. Martin, John K. Amory   +3 more
wiley   +1 more source

Defects in Meiotic Recombination Delay Progression Through Pachytene in Tex19.1-/- Mouse Spermatocytes [PDF]

, 2018
Recombination, synapsis, chromosome segregation and gene expression are co-ordinately regulated during meiosis to ensure successful execution of this specialised cell division.
A Chicheportiche, A Copsey, AH Peters, AM Lyndaker, B Drabent, CA Adelman, CK Cahoon, David Read, E Bolcun-Filas, E Meijering, E Testa, EA Ahmed, EF Joyce, F Baudat, F Baudat, F Carofiglio, F Yang, H Nakata, HBDP Rao, I Roig, Ian R. Adams, J Chen, J Cobb, J Reichmann, J Reichmann, J Schindelin, JA Hackett, James H. Crichton, JH Crichton, JH Crichton, JH Lammers, JM Cloutier, JMA Turner, JY An, K Daniel, L Kauppi, L Kauppi, L Wojtasz, L Wojtasz, L Xu, L-Y Lu, LH Hartwell, LK Anderson, M Barchi, M Faieta, M Fujimuro, M MacLennan, M Marcet-Ortega, N Reynolds, NM Vranis, PB Moens, PJ Romanienko, PJ Wang, PM Carlton, PS Burgoyne, R Core Team, R Öllinger, RL Meuwissen, S Kuntz, S Pacheco, S Schoenmakers, SK Mahadevaiah, SK Mahadevaiah, TJ Broering, VD Rinaldi, VV Subramanian, WM Baarends, XC Li, Y Costa, Y Tarabay, Y-H Shin, YT Kwon   +71 more
core   +1 more source

Vitamin B12-induced spermatogenesis recovery in cimetidine-treated rats: effect on the spermatogonia number and sperm concentration

Asian Journal of Andrology, 2017
The H2-receptor antagonist cimetidine is an antiulcer drug also used for the treatment of cancer due to its antiangiogenic effect. However, this drug has caused structural changes in the seminiferous tubules.
Flávia L Beltrame, Estela Sasso-Cerri
doaj   +1 more source