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Spermatogenesis is a complex and continuous process of germ-cell differentiation. This complex process is regulated by many factors, of which gene regulation in spermatogenic cells plays a decisive role.
Yanan Li+11 more
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Oestrogens and spermatogenesis [PDF]
The role of oestrogens in male reproductive tract physiology has for a long time been a subject of debate. The testis produces significant amounts of oestrogenic hormones, via aromatase, and oestrogen receptors (ERs)α (ESR1) and ERβ (ESR2) are selectively expressed in cells of the testis as well as the epididymal epithelium, depending upon species ...
Carreau, Serge, Hess, Rex A.
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Ubiquitin-Proteasome System–Regulated Protein Degradation in Spermatogenesis
Spermatogenesis is a prolonged and highly ordered physiological process that produces haploid male germ cells through more than 40 steps and experiences dramatic morphological and cellular transformations.
Yi Xiong, Chao Yu, Qianting Zhang
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Estrogen and Spermatogenesis* [PDF]
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+4 more
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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+7 more
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Spermatogenesis in the Microminipig [PDF]
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+5 more
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Kinesins in spermatogenesis† [PDF]
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
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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.
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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+6 more
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The cytoskeleton in spermatogenesis [PDF]
As germ cells progress through spermatogenesis, they undergo a dramatic transformation, wherein a single, diploid spermatogonial stem cell ultimately produces thousands of highly specialised, haploid spermatozoa. The cytoskeleton is an integral aspect of all eukaryotic cells.
Dunleavy, J.E.M.+3 more
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