Results 171 to 180 of about 4,581 (187)

Undifferentiated Spermatogonia and their Role in the Seasonally Fluctuating Spermatogenesis in the Mink, Mustela vison

Anatomia, Histologia, Embryologia, 1991
SummaryThree classes of spermatogonia were discerned: undifferentiated A spermatogonia (Ais, Apr, Aal), differentiated A spermatogonia (A1, A2) and differentiated B spermatogonia (B1, B2). Cell counts performed throughout the seminiferous epithelial cycle in the breeding season revealed that the number of undifferentiated A spermatogonia was lowest in ...
T, Tiba, I, Kita
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Overexpression of TAF4B Promoted the Proliferation of Undifferentiated Spermatogonia in Cattleyak In Vitro

Reproduction in Domestic Animals
ABSTRACTAs the hybrid between cattle and yak, cattleyak is a typical male sterile mammal, and the underlying mechanism for its spermatogenic arrest is still unclear. In this study, the coding region of cattleyak TAF4B gene was cloned by RT‐PCR and analysed by bioinformatics.
Yuan Tian, Peng Zhang, Kemin Jing, Yuqian Li, Binglin Yue, Zhijuan Wu, Wenjing Dong, Jincheng Zhong, Xin Cai   +8 more
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Dynamic three-dimensional epigenomic reorganization for the development of undifferentiated spermatogonia in mice

Current Opinion in Genetics & Development
Germ cells are unique in their ability to acquire totipotency. Toward this end, they reorganize their three-dimensional (3D) epigenome during their development, including epigenetic reprogramming in primordial germ cells that differentiate mitotic prospermatogonia and ensuing unique epigenetic programming for generating undifferentiated spermatogonia ...
Masahiro Nagano, Mitinori Saitou
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A novel undifferentiated spermatogonia-specific surface protein 1 (USSP1) in neonatal mice

Science Bulletin, 2019
Mammalian spermatogenesis is maintained by a rare population of spermatogonial stem cells (SSCs), which are important for male fertility. SSCs remain a subset of undifferentiated spermatogonia, which can be isolated by a combination of surface markers. Specific markers to identify and isolate undifferentiated spermatogonia are lacking.
Zhuoheng, Lin, Puping, Liang, Zhaokai, Yao, Yuxi, Chen, Xiya, Zhang, Rui, Huang, Zhen, Zhang, Minyan, Li, Wenbin, Ma, Haiyan, Zheng, Shanbo, Cao, Guang, Shi, Xiaoyang, Zhao, Zhou, Songyang, Junjiu, Huang   +14 more
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CDH1 is a specific marker for undifferentiated spermatogonia in mouse testes.

Biology of reproduction, 2007
In the mammalian testis, spermatogenesis is initiated from a subset of stem cells belonging to undifferentiated type A spermatogonia. In spite of the biologic significance of undifferentiated type A spermatogonia, little is known about their behavior and properties because of a lack of specific cell surface markers.
Masutaka, Tokuda, Yuzo, Kadokawa, Hiroki, Kurahashi, Tohru, Marunouchi   +3 more
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GFRα‐1 is a reliable marker of bovine gonocytes/undifferentiated spermatogonia: A mini‐review

Anatomia, Histologia, Embryologia, 2020
AbstractIdentification of the specific biomarkers is of great importance to enrich and expand the gonocytes or spermatogonial stem cells (SSCs) in livestock. The glial cell line‐derived neurotrophic factor (GDNF) family receptor alpha‐1 (GFRα‐1) is a conserved marker of the gonocytes/SSCs in multiple species including rodents, primates and human ...
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Identifying undifferentiated spermatogonia in patients with Klinefelter syndrome

Nature Reviews Urology, 2022
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PLZF protein forms a complex with protein TET1 to target TCF7L2 in undifferentiated spermatogonia

Theriogenology
The transcription factor promyelocytic leukemia zinc finger (PLZF, also known as ZBTB16) is critical for the self-renewal of spermatogonial stem cells (SSCs). However, the function of PLZF in SSCs is not clear. Here, we found that PLZF acted as an epigenetic regulator of stem cell maintenance and self-renewal of germ cells.
Xiaomin Du, Donghui Yang, Xiuwei Yu, Yudong Wei, Wenbo Chen, Yuanxin Zhai, Fanglin Ma, Mengfei Zhang, Shicheng Wan, Yunxiang Li, Xinchun Yang, Aili Aierken, Ning Zhang, Wenjing Xu, Yuan Meng, Na Li, Mingzhi Liao, Xiaole Yuan, Haijing Zhu, Lei Qu, Na Zhou, Xue Bai, Sha Peng, Fan Yang, Jinlian Hua   +24 more
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Immunophenotyping of Undifferentiated Spermatogonia in Human Testes.

Biology of Reproduction, 2010
Hanna Valli, Serena L. Dovey, Marc C. Hansel, Kyle E. Orwig   +3 more
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Spermatogonial multiplication in the Chinese hamster. II. Cell cycle properties of undifferentiated spermatogonia.

Cell and tissue kinetics, 1983
The cell cycle properties of undifferentiated spermatogonia in the Chinese hamster were analysed by the fraction of labelled mitoses technique (FLM) in whole mounted seminiferous tubules. The minimum cell cycle time (Tc) was found to be c. 90 hr for the As and 87 hr for the Apr and Aal spermatogonia, which is appreciably longer than for the ...
Lok, D., Jansen, M. T., de rooij, D. G.
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