搜索结果: 16-30 共查到“医学 Epididymis”相关记录80条 . 查询时间(0.109 秒)
The effect of estrogen administration in vivo on the elemental composition of the intraluminal fluids of the seminiferous tubules, rete testis, and epididymis of the rat
epididymis spermatozoa estrogen elements
2009/2/19
The maturation of spermatozoa in the epididymis is dependent upon the presence of androgens. This study examined the effects of androgen suppression by estradiol valerate on the elemental compositio...
The ability of the rat epididymis to concentrate spermatozoa. Responsiveness to aldosterone
aldosterone epididymal spermatozoa
2009/2/19
Experiments have been performed to determine if aldosterone is involved in the control of water reabsorption from the epididymal lumen in vivo. Micropuncture samples of lumen content were collected ...
A Case of Bilateral Absence of the Vas Deferens and the Body and Tail of the Epididymis in Association with Multiple Congenital Anomalies
infertility agenesis vas deferens epididymis congenital anomaly
2009/2/19
A patient presenting with infertility was found to have bilateral agenesis of the vas deferens and body and tail of the epididymis in association with cleft mitral valve, epiphyseal dysplasia, polyd...
Ultrastructure and Maturational Changes in Spermatozoa in the Epididymis of the Pigtailed Monkey, Macaca nemestrina
ultrastructure sperm maturation spermatozoa epididymis monkey epididymal sperm
2009/2/19
Ultrastructural characteristics of the acrosome, postacrosomal region, plasma membrane, and cytoplasmic droplet in spermatozoa taken from the caput, corpus, and cauda epididymidis of the pigtailed...
A Continuous Flow Method for Organ Culture of Rabbit Epididymis：Morphology, Amino Acid Utilization, Glucose Uptake, RNA, and Protein Synthesis
epididymis organ culture glucose uptake amino acid utilization
2009/2/18
A modified perfusion system was developed to maintain an unconvoluted tubule from the corpus epididymidis of the rabbit in organ culture. The epididymal explant is submerged in a continuous flow of ...
II. Characterization and development of the regional- and cellular-specific abnormalities in the epididymis of mice with beta-hexosaminidase A deficiency
II. Characterization regional- and cellular-specific abnormalities epididymis mice with beta-hexosaminidase A deficiency
2009/2/18
Beta-hexosaminidase (Hex) is a lysosomal enzyme that exists as two isoenzymes: Hex A (subunit structure alphabeta) and Hex B (betabeta). Its presence in the testis and epididymis suggests importan...
I. Abnormalities in cells of the testis, efferent ducts, and epididymis in juvenile and adult mice with beta-hexosaminidase A and B deficiency
cells testis efferent ducts epididymis adult mice beta-hexosaminidase A and B deficiency
2009/2/18
Beta-hexosaminidase (Hex) is a lysosomal enzyme that exists as two major isoenzymes: Hex A (subunit structure, alphabeta) and Hex B (betabeta). The presence of Hex in the testis and epididymis sug...
Effects of short-term methylmercury exposure on metallothionein mRNA levels in the testis and epididymis of the rat
short-term methylmercury metallothionein mRNA rat
2009/2/18
Methylmercury (MeHg) is a widespread environmental contaminant that causes reproductive dysfunction in men. Metallothioneins (MTs) are low-molecular-weight proteins that can bind heavy metals and pr...
Changes in the number, proliferation rates, and bcl-2 protein immunoexpression of epithelial and periductal cells from rat epididymis during postnatal development
Basal cells cell proliferation
2009/2/18
To investigate 1) the correlation between the proliferative activity of epididymal epithelium plus myoid cells and the increase in the number of these cells and 2) the role of the basal epithelial c...
TGF-beta could be involved in paracrine actions in the epididymis of the marmoset monkey（Callithrix jacchus）
TGF-beta paracrine actions epididymis marmoset monkey
2009/2/18
The transforming growth factor-beta1 (TGF-beta1) and the transforming growth factor-beta receptor type II (TGF-betaRII) were studied in the epididymis of sexually mature marmoset monkeys (Callithrix...
Androgen binding protein secretion and endocytosis by principal cells in the adult rat epididymis and during postnatal development
Androgen binding protein secretion endocytosis principal cells adult rat epididymis
2009/2/18
Androgen binding protein (ABP) has been shown to be secreted by Sertoli cells and to be actively taken up by the efferent ducts and proximal caput epididymidis and, yet, to be present at high concen...
The effects of aging on the expression of glutathione S-transferases in the testis and epididymis of the Brown Norway rat
glutathione S-transferases epididymis Brown Norway rat
2009/2/17
Glutathione S-transferases (GSTs), a family of isoenzymes, catalyze the conjugation of glutathione to a variety of electrophiles, and protect cellular constituents from electrophilic and oxidative...
Vitamin E deficiency causes incomplete spermatogenesis and affects the structural differentiation of epithelial cells of the epididymis in the rat
Vitamin E structural differentiation epithelial cells epididymis rat
2009/2/17
The effects of vitamin E deficiency on the rat testis and epididymis were examined in a light- and electron-microscopic analysis. Various groups of animals were made vitamin E-deficient, beginning...
Oxidative stress differentially regulates the expression of gamma-glutamyl transpeptidase mRNAs in the initial segment of the rat epididymis
gamma-glutamyl transpeptidase mRNAs initial segment rat epididymis
2009/2/17
Reactive oxygen species (ROS) have a powerful cytotoxic effect on spermatozoa and have been implicated in spermatozoal dysfunction and male infertility. gamma-Glutamyl transpeptidase (GGT) is esse...
Regional distribution of 5alpha-reductase type 1 and type 2 mRNA along the nonhuman primate (Macaca fascicularis) epididymis
Cynomolgus monkey RT-PCR gene expression
2009/2/17
The 5alpha-reduced metabolites of testosterone, including dihydrotestosterone, are considered the primary regulators of epididymal function. Two genes encode two 5alpha-reductase isozymes. We exam...