搜索结果: 46-60 共查到“医学 epididymis”相关记录80条 . 查询时间(0.114 秒)
Immunocytochemical localization of the Yf subunit of glutathione S-transferase P shows regional variation in the staining of epithelial cells of the testis, efferent ducts, and epididymis of the male rat
Epididymis testis basal cells glutathione S-transferase detoxification
2009/2/11
Glutathione S-transferases (GSTs) are a family of isozymes that catalyze the conjugation of glutathione (GSH), a tripeptide found in all mammalian cells; this function plays a protective role, as th...
GnRH-A induced arrest of spermiogenesis in rats is associated with altered androgen binding protein distribution in the testis and epididymis
GnRH-antagonist Sertoli cell spermatogenesis
2009/2/10
This study examines the effects of a potent gonadotropin releasing hormone (GnRH)-antagonist (GnRH-A, Ac-D[2] Nal1, 4-CL-D Phe2, D-Trp3, D-Arg6, D-Ala10) upon the distribution of androgen binding pr...
Endocytosis of androgen-binding protein, clusterin, and transferrin in the efferent ducts and epididymis of the ram
Testicular proteins uptake excurrent ducts
2009/2/7
The amount of androgen-binding protein (ABP) in luminal fluid from the central caput epididymidis of the ram, on a per sperm basis, remains the same as that in rete testis fluid (RTF) entering the...
S-adenosyl-L-methionine decarboxylase activity in the rat epididymis：ontogeny and androgenic control
S-adenosyl-L-methionine androgen flutamide
2009/2/7
The authors describe the occurrence of high levels of S-adenosyl-L-methionine decarboxylase (SAMDC) activity in the rat epididymis, and its ontogeny and androgenic control. As early as 15 days of ag...
Fluid movement in the lumen of the rat epididymis：effect of vasectomy and subsequent vasovasostomy
vasovasostomy vasectomy epididymis fluid movement
2009/2/6
Intraluminal fluid movement rate was measured in four regions of the rat epididymis. The fastest flow occurred in the proximal caput epididymis (18.5 +/- 3.7 mm/hour) and the slowest in the distal...
Segment-Specific Decrease of Both Catecholamine Concentration and Acetylcholinesterase Activity Are Accompanied by Nerve Refinement in the Rat Cauda Epididymis During Sexual Maturation
Segment-Specific Catecholamine Concentration Acetylcholinesterase Activity Nerve Refinement Rat
2008/12/30
In the present work, histochemical and biochemical studies were conducted to analyze changes in the pattern of autonomic innervation during sexual maturation, using the rat epididymis as a model....
Expression and Regulation of Aquaporins 1, 8, and 9 in the Testis, Efferent Ducts, and Epididymis of Adult Rats and During Postnatal Development
channels Sertoli cells Leydig cells principal cells clear cells nonciliated cells
2008/12/30
Aquaporins (AQPs) are membrane protein channels that allow the rapid passage of water through an epithelium containing tight junctions. In the present study, light microscope immunocytochemistry ...
Postweaning exposure to gossypol results in epididymis-specific effects throughout puberty and adulthood in rats
Male reproduction sexual development sperm maturation male contraception
2008/12/30
Gossypol, a yellow pigment found in cottonseeds, well known for its antifertility properties in animals, has been used as a contraceptive by men. The aims of this work were to evaluate the effects o...
Expression of crisp-1 mRNA splice variants in the rat epididymis, and comparative analysis of the rat and mouse crisp-1 gene regulatory regions
crisp-1 mRNA rat epididymis rat and mouse crisp-1 gene
2008/12/26
The rat Crisp-1 gene encodes Protein DE (acidic epididymal glycoprotein; AEG), a glycoprotein secreted by the epididymal epithelium that associates with maturing sperm and has been implicated in the p...
Expression and regulation of metallothioneins in the rat epididymis
Expression regulation metallothioneins rat epididymis
2008/12/26
Metallothioneins (MTs) are cytosolic proteins involved in cellular stress responses. The objectives of this study were to determine which epididymal cells express MTs, how they are regulated, and whet...
Stage and region-specific localization of lipocalin-type prostaglandin D synthase in the adult murine testis and epididymis
lipocalin-type prostaglandin D synthase adult murine testis epididymis
2008/12/25
Lipocalin-type prostaglandin D synthase in semen has been associated with male fertility, although this relationship is not well defined. To gain insight into potential mechanisms, the objective of ...
Mouse Spam1（PH-20）：evidence for its expression in the epididymis and for a new category of spermatogenic-expressed genes
Mouse Spam epididymis spermatogenic-expressed genes
2008/12/25
The gene for the sperm adhesion molecule 1 (PH-20), SPAM1, has been known to be testis-specific and exclusively haploid expressed. We show that in mice, the 2 common isoforms of the protein (Spam1...
Immunolocalization of NBC3 and NHE3 in the rat epididymis：colocalization of NBC3 and the vacuolar H+-ATPase
Immunolocalization NBC3 NHE3 rat epididymis vacuolar H+-ATPase
2008/12/25
In the male reproductive tract, the epididymis plays an important role in mediating transepithelial bicarbonate transport and luminal acidification. In the proximal vas deferens, a significant compo...
Immunolocalization of CA II and H+ V-ATPase in epithelial cells of the mouse and rat epididymis
Immunolocalization CA II H+ V-ATPase epithelial cells mouse rat epididymis
2008/12/25
Acidification of the epididymal lumen has been suggested to play an important role in sperm functions; however, the cell types, pumps, and mechanisms involved have not been fully addressed. In thi...
Circulating and luminal testicular factors affect LRP-2 and Apo J expression in the epididymis following efferent duct ligation
Circulating luminal testicular factors LRP-2 Apo J epididymis
2008/12/25
Apolipoprotein J (clusterin or sulfated glycoprotein-2) has been shown to be secreted by the epididymal principal cells, whereupon it binds to sperm in the lumen. Apolipoprotein J also is endocyto...