Results 21 to 30 of about 102,741 (261)

Spermatogenesis and Cryptorchidism [PDF]

Frontiers in Endocrinology, 2014
Cryptorchidism represents the most common endocrine disease in boys, with infertility more frequently observed in bilateral forms. It is also known that undescended testes, if untreated, lead to an increased risk of testicular tumors, usually seminomas, arising from mutant germ cells.
Cobellis G, Noviello C, Nino F, Romano M, Mariscoli F, Martino A, PARMEGGIANI, Pio, PAPPARELLA, Alfonso   +7 more
openaire   +3 more sources

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 Zhang, Jun Jing, Sha Liu, Y. Mu, Lin Peng, Yunjing Yan, Gengmiao Xiao, Xinyun Bi, Haojun Chen, F. Li, B. Yao, A. Zhao   +13 more
semanticscholar   +1 more source

Roles of Spermatogonial Stem Cells in Spermatogenesis and Fertility Restoration

Frontiers in Endocrinology, 2022
Spermatogonial stem cells (SSCs) are a group of adult stem cells in the testis that serve as the foundation of continuous spermatogenesis and male fertility.
Lei Diao, P. Turek, C. M. John, Fang Fang, R. R. Reijo Pera   +4 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 Manske, C. D. Green, M. Sukhwani, K. Orwig, Jun Z. Li, S. S. Hammoud   +9 more
semanticscholar   +1 more source

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

Transcriptome profiling of laser-captured germ cells and functional characterization of zbtb40 during 17alpha-methyltestosterone-induced spermatogenesis in orange-spotted grouper (Epinephelus coioides)

BMC Genomics, 2020
Background Spermatogenesis is an intricate process regulated by a finely organized network. The orange-spotted grouper (Epinephelus coioides) is a protogynous hermaphroditic fish, but the regulatory mechanism of its spermatogenesis is not well-understood.
Xi Wu, Yang Yang, Chaoyue Zhong, Yin Guo, Shuisheng Li, Haoran Lin, Xiaochun Liu   +6 more
doaj   +1 more source

Impaired spermatogenesis in COVID-19 patients

EClinicalMedicine, 2020
Background The current study aimed to determine the impact of SARS-CoV-2 infection on male fertility. Methods This is a single-center, hospital-based observational study that included autopsied testicular and epididymal specimens of deceased COVID-19 ...
Honggang Li, Xingyuan Xiao, Jie Zhang, M. I. Zafar, Chunlin Wu, Yuting Long, W. Lu, Feng Pan, Tian-qing Meng, K. Zhao, Li-quan Zhou, S. Shen, Liang Liu, Qian Liu, C. Xiong   +14 more
semanticscholar   +1 more source

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

PENGARUH PEMBERIAN RANITIDINE TERHADAP SPERMATOGENESIS TIKUS Wistar DENGAN INTOKSIKASI METANOL AKUT DILIHAT SECARA HISTOPATOLOGIS

Jurnal Kedokteran Diponegoro, 2017
Latar belakang: Metanol memiliki efek toksik melalui metabolitnya yaitu asam format yang mengakibatkan gangguan spermatogenesis. Ranitidine mempunyai enzim yang dapat menghambat terbentuknya metabolit asam format sehingga diharapkan akan mengurangi efek ...
James Otniel, Muhammad Thohar Arifin, Ika Pawitra Miranti   +2 more
doaj   +1 more source

Multipathway synergy promotes testicular transition from growth to spermatogenesis in early-puberty goats

BMC Genomics, 2020
Background The microscopic process of postnatal testicular development in early-puberty animals is poorly understood. Therefore, in this study, 21 male Yiling goats with average ages of 0, 30, 60, 90, 120, 150 and 180 days old (each age group comprised ...
Dongdong Bo, Xunping Jiang, Guiqiong Liu, Feng Xu, Ruixue Hu, Teketay Wassie, Yuqing Chong, Sohail Ahmed, Chenhui Liu, Shishay Girmay   +9 more
doaj   +1 more source