نتایج جستجو برای: epididymal sperm retrieval

تعداد نتایج: 121884  

2017
Zhiming Bai

© Translational Andrology and Urology. All rights reserved. Transl Androl Urol, 2017;6(S3) tau.amegroups.com purpose of this study is to analyze patients with non-iatrogenic, non-traumatic OA who underwent scrotal exploration with or without VE anastomosis in our institution. Methods: Retrospective chart review was done for patients treated from 2000 to 2015. Normal spermatogenesis confirmed by...

Journal: :Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology 2015
Tao Luo Qian-xing Zou Yuan-qiao He Hua-feng Wang Na Li Xu-hui Zeng

BACKGROUND Matrine is a bioactive alkaloid that has a variety of pharmacological effects and is widely used in Chinese medicine. However, its effects on male reproduction are not well known. In this study, we aimed to investigate the in vitro toxicity of matrine on mature mouse sperm. METHODS Mouse cauda epididymal sperm were exposed to matrine (10-200 µM) in vitro. The viability, motility, c...

2006
F. Karaca H. H. Dönmez M. A. Karslı

The aim of the study was to evaluate the effects of protein deficiency on plasma testosterone levels, epididymal sperm characteristics and testicular histology in the developing male rat. Twenty four Wistar albino rats were used in the study and were fed with a diet variously containing 3 %, 10 % and 20 % protein. Plasma testosterone levels were significantly lower in rats fed 3 % protein when ...

Journal: :Acta biochimica et biophysica Sinica 2012
Xiaoni Zhan Chunmei Wang Aihua Liu Qiang Liu Yonglian Zhang

Spermatozoa acquire forward motility and fertilizing capacity during their transit through the epididymis. This maturation process involves modifications of the sperm surface by different proteins secreted by a series of specialized regions in the epididymal epithelium. Previously, our lab has reported IMDS-60 gene, which is highly expressed in mouse corpus and cauda epididymidis. Here, to perf...

Journal: :Nagoya journal of medical science 1992
M Yamamoto Y Tsuji T Nagai K Miyake

The effect of hypophysectomy on transepithelial movement of 3H-androgen in the rat epididymis was examined by using in vivo microperifusion of 3H-testosterone followed by in vivo micropuncture to obtain peritubular and intraluminal fluids. Experiments were performed on animals without hypophysectomy or on animals 5-6 days after hypophysectomy and 9-10 days after hypophysectomy. Tubules were per...

Journal: :Asian journal of andrology 2007
Gail A Cornwall H Henning von Horsten Douglas Swartz Seethal Johnson Kim Chau Sandra Whelly

The epididymal lumen represents a unique extracellular environment because of the active sperm maturation process that takes place within its confines. Although much focus has been placed on the interaction of epididymal secretory proteins with spermatozoa in the lumen, very little is known regarding how the complex epididymal milieu as a whole is maintained, including mechanisms to prevent or ...

Journal: :Asian journal of andrology 2007
Robert Sullivan Gilles Frenette Julie Girouard

During epididymal transit, spermatozoa acquire new proteins. Some of these newly acquired proteins behave as integral membrane proteins, including glycosylphosphatidylinositol (GPI)-anchored proteins. This suggests that the secreted epididymal proteins are transferred to spermatozoa by an unusual mechanism. Within the epididymal lumen, spermatozoa interact with small membranous vesicles named e...

2016
Zhong Zheng Xiaoming Zhao Yan Hong Bing Xu Jing Tong Lan Xia

INTRODUCTION In this study, we aimed to evaluate the safety of using different sources of sperm when male partners were infected with hepatitis B virus (HBV). MATERIAL AND METHODS A total of 338 couples receiving their first intracytoplasmic sperm injection (ICSI) cycle at the Department of Reproduction, Ren Ji Hospital, between 2007 and 2012 were enrolled if the female partner tested negativ...

Journal: :Reproduction 2003
A M Petrunkina A Läkamp M Gentzel M Ekhlasi-Hundrieser E Töpfer-Petersen

Polyclonal avian antibody was used partially to characterize the pig sperm lactadherin P47. P47 is a mosaic protein, composed of two epidermal growth factor (EGF)-like domains and two C1/C2 domains. P47 is homologous to the bovine mammary gland protein MGP 53/57 and mouse milk fat globule protein. Expression of P47 along the male genital tract and its localization on spermatozoa during post-tes...

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