Results 21 to 30 of about 168,606 (377)

Impairment of spermatogenesis and sperm motility by the high-fat diet-induced dysbiosis of gut microbes

Gut, 2020
Objective High-fat diet (HFD)-induced metabolic disorders can lead to impaired sperm production. We aim to investigate if HFD-induced gut microbiota dysbiosis can functionally influence spermatogenesis and sperm motility.
Ning Ding, Xin Zhang, Xue Di Zhang, Jun Jing, Sha Liu, Y. Mu, Li Li Peng, Yunjing Yan, Geng Miao Xiao, Xinyun Bi, Haojun Chen, F. Li, B. Yao, A. Zhao   +13 more
semanticscholar   +1 more source

Single-cell RNA sequencing of human, macaque, and mouse testes uncovers conserved and divergent features of mammalian spermatogenesis

bioRxiv, 2020
Spermatogenesis is a highly regulated process that produces sperm to transmit genetic information to the next generation. Although extensively studied in mice, our current understanding of primate spermatogenesis is limited to populations defined by ...
A. Shami, Xianing Zheng, S. Munyoki, Qianyi Ma, Gabriel L. Manske, C. D. Green, M. Sukhwani, K. Orwig, Jun Z. Li, S. S. Hammoud   +9 more
semanticscholar   +1 more source

Estrogen and Spermatogenesis* [PDF]

Endocrine Reviews, 2001
AbstractAlthough it has been known for many years that estrogen administration has deleterious effects on male fertility, data from transgenic mice deficient in estrogen receptors or aromatase point to an essential physiological role for estrogen in male fertility.
Evan R. Simpson, Liza O'Donnell, Kirsten M. Robertson, Kirsten M. Robertson, Margaret E. E. Jones   +4 more
openaire   +5 more sources

Proteomic analysis and miRNA profiling of human testicular endothelial cell-derived exosomes: the potential effects on spermatogenesis

Asian Journal of Andrology, 2022
Testicular endothelial cells have been found to play an important role in spermatogenesis and fertility, but their mechanism is obscure. Exosomes released by various cells are recognized as cell–cell communication mediators during the initiation and ...
Wen-Peng Song, Sheng-Ji Gu, Xiao-Hui Tan, Yang-Yang Gu, Wei-Dong Song, Jian-Yu Zeng, Zhong-Cheng Xin, Rui-Li Guan   +7 more
doaj   +1 more source

Spermatogenesis in the Microminipig [PDF]

Toxicologic Pathology, 2016
The microminipig has considerable potential as an animal model to evaluate general toxicity; however, there are few studies on the male reproductive system, particularly regarding spermatogenesis. The objectives of the present study were to clarify the stages of the seminiferous epithelium cycle on the basis of spermiogenesis and to determine the ...
Masatoshi Shibata, Toshinori Yoshida, Masayoshi Otake, Akihisa Kangawa, Satoko Enya, Yumi Kangawa   +5 more
openaire   +3 more sources

Spermatogenesis without spermiogenesis in Laudakia caucasia (Reptilia: Agamidae): the role of hibernation [PDF]

Iranian Journal of Animal Biosystematics, 2007
During hibernation period from Mid October to Late March, we removed testis of Laudakia caucasia. Based on histological and statistical analyses we obtained two phases in spermatogenesis in this lizard as follows: (a) from October to December, in which ...
N. Rastegar-Pouyani, F. Torki
doaj   +1 more source

Cell proliferation and differentiation kinetics during spermatogenesis in Hydra carnea [PDF]

, 1985
Spermatogenesis inHydra carnea was investigated. The cell proliferation and differentiation kinetics of intermediates in the spermatogenesis pathway were determined, using quantitative determinations of cell abundance, pulse and continuous labelling ...
A Brauer, A Weismann, B Romeis, CN David, CN David, CN David, CN David, E Downing, HR Bode, J Zihler, L Hyman, P Brien, P Brien, P Brien, P Tardent, P Tardent, RR Cowden, WF Loomis   +17 more
core   +1 more source

Spermatogenesis [PDF]

WormBook, 2006
Spermatogenesis creates functional sperm from an initially undifferentiated germ cell. In the nematode Caenorhabditis elegans, both males and hermaphrodites engage in spermatogenesis. The hermaphrodite germ line, like that of the male, initiates spermatogenesis during the L4 larval stage.
openaire   +2 more sources

Kinesins in spermatogenesis† [PDF]

Biology of Reproduction, 2017
Kinesins are essential for the proper function of many types of polar cells, including epithelial cells, neurons, and sperm. Spermatogenesis is closely associated with many different kinesins. These kinesins participate in several fundamental processes, including mitotic and meiotic division, essential organelle transport, and the biogenesis of ...
Wan-Xi Yang, Da-Hui Wang, Dan-Dan Ma
openaire   +3 more sources

SALL4 Expression in Gonocytes and Spermatogonial Clones of Postnatal Mouse Testes [PDF]

, 2013
The spermatogenic lineage is established after birth when gonocytes migrate to the basement membrane of seminiferous tubules and give rise to spermatogonial stem cells (SSC). In adults, SSCs reside within the population of undifferentiated spermatogonia (
A Buageaw, A Sada, BT Phillips, D Filipponi, D Lok, D Sweetman, D Sweetman, DG de Rooij, DL van den Berg, E Camp, G Jürgens, H Kubota, H Suzuki, H Yamatani, J Kohlhase, J Kohlhase, J Kohlhase, J Yang, J Yang, K Eildermann, K Koshiba-Takeuchi, K Yoshinaga, K Zheng, Kathrin Gassei, Kyle E. Orwig, M Culty, M Sakaki-Yumoto, M Tokuda, M Warren, MC Hofmann, MJ Oatley, N Uez, PJ Wang, PM Kluin, RA Tegelenbosch, RM Hobbs, RP Kühnlein, S Jing, S Rao, S Yoshida, S Yoshida, S Yuri, Shree Ram Singh, T Hollemann, T Nakagawa, T Oikawa, T Ott, U Elling, X Meng   +48 more
core   +12 more sources