نتایج جستجو برای: testes

تعداد نتایج: 10561  

Journal: :Journal of andrology 2006
Zhen Zhang Shan Shao Marvin L Meistrich

Testicular cell transplantation has been widely used to investigate the biology of spermatogonial stem cells, production of transgenic animals, and restoration of fertility in rodent models. One critical step in successful transplantation is the preparation of the recipient testes. Busulfan has been widely used, but irradiation has been often suggested as an alternative. There have only been li...

Journal: :Abdominal Radiology 2017

Journal: :Revista Brasileira de Zootecnia 2008

Journal: :Turkish Association of Pediatric Surgeons 2017

Journal: :Psicologia: Ciência e Profissão 1985

Journal: :Archives of insect biochemistry and physiology 2010
Ling Tian Bao-Zhong Ji Shu-Wen Liu Chun-Ling He Feng Jin Jie Gao David Stanley Sheng Li

We report on juvenile hormone (JH) biosynthesis from long-chain intermediates by specific reproductive tissues and the corpora allata (CA) prepared from adult longhorned beetles, Apriona germari. The testes, male accessory glands (MAGs), ovaries, and CA contained the long-chain intermediates in the JH biosynthetic pathway, farnesoic acid (FA), methyl farnesoate (MF), and JH III. The testes and ...

2015
Futoshi YAZAMA Haruki SATO Tomoko SONODA

An experimental ischemia (EI)-induced mouse model was used to analyze pathological and biochemical alterations in testes. Initial morphological changes were observed in Sertoli cells of EI testes at the light microscopic level. Examination of the ultrastructure using transmission electron microscopy confirmed that Sertoli cells were partially detached from the basement membrane of the seminifer...

Journal: :Environmental Health Perspectives 2003
Zhan-Fen Qin Jing-Ming Zhou Shao-Gang Chu Xiao-Bai Xu

To determine whether polychlorinated biphenyls (PCBs) influence gonadal differentiation in Xenopus laevis, tadpoles were exposed to two Chinese domestic PCBs (PCB3 and PCB5 from Nieuwkoop and Faber stage 46/47 to complete metamorphosis. Gonads were characterized using a dissecting microscope. The control X. laevis had normal ovaries or testes in gross morphology, whereas obviously abnormal test...

Journal: :Fertility and sterility 2009
Frank Tüttelmann Nina Dykstra Axel P N Themmen Jenny A Visser Eberhard Nieschlag Manuela Simoni

OBJECTIVE To evaluate serum anti-Müllerian hormone (AMH) in well-characterized men with normal and reduced sperm concentration and in men with a history of or persistent maldescended testes as a possible clinical marker of male factor infertility and/or maldescended testes. DESIGN Retrospective analysis of 199 men selected from our database (Androbase). SETTING The university-based Institut...

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