搜索结果: 1-13 共查到“性科学 Nuclear”相关记录13条 . 查询时间(0.055 秒)
Whole cell and nuclear androgen uptake in skin fibroblasts from infertile men
Whole cell nuclear androgen uptake skin fibroblasts infertile men
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2009/2/23
In order to reexamine the hypothesis that a high percentage of infertile men with oligo/azoospermia have androgen resistance due to androgen receptor abnormalities, both whole cell and nuclear uptak...
Inhibition of 5 alpha-reductase activity and alteration of nuclear testosterone.
5a-reductase fibroblast androgen receptor enzyme inhibitor nuclear uptake
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2009/2/20
17 beta-N, N-diethylcarbamoyl-4-methyl-4-aza-5 alpha-androstan-3-one (4-MA) inhibits 5 alpha-reductase activity in cultured human genital skin fibroblasts. Enzyme kinetic studies analyzed by Eadie...
Nuclear Uptake and Retention of Androgen by the Accessory Organs in the Male Golden Hamster
androgens 3H-dihydrotestosterone autoradiography male accessory organs
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2009/2/18
The nuclear uptake and retention of 3H-dihydrotestosterone (3H-DHT) were studied in the reproductive organs of the male hamster by autoradiography. Castrated adult male hamsters were injected with...
Rat seminal-vesicle secretory protein SVS II binds DNA with a preference for the 5' regulatory region of secretory protein SVS IV gene：co-isolation with components of the nuclear matrix
caltrin nuclear scaffold nuclear structure semen tissue
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2009/2/18
In rats, the ventral prostate and seminal vesicles produce distinct sets of proteins whose functions and tissue-specific regulation by androgens remain unclear. We have utilized the genes encoding t...
A morphometric comparison of the nuclear morphology of fresh and frozen-thawed human zona-bound and unbound sperm
Sperm nucleus computer-assisted morphometry zona binding cryopreservation DNA
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2009/2/12
The role of sperm nuclear morphology in zona binding and the effect of cryopreservation on sperm nuclear morphology have been investigated using objective criteria. The nuclear dimensions of fresh a...
The nuclear status of human sperm cells by TEM image cytometry：nuclear shape and chromatin texture in semen samples from fertile and infertile men
human sperm cells TEM image cytometry nuclear shape chromatin texture semen samples
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2009/2/12
Changes in nuclear size, shape, and chromatin texture during spermiogenesis and epididymal transport of human sperm were recently analyzed using transmission electron microscopy (TEM) image cytome...
Nuclear androgen receptor dynamics in testicular peritubular and Sertoli cells
Androgen receptor testis Sertoli cells peritubular
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2009/2/6
Nuclear androgen receptor dynamics were analyzed in peritubular cells and compared with those in cultured Sertoli cells. Nuclear receptors with a high affinity for [3H]dimethylnortestosterone (DMN...
Relationship of bull fertility to sperm nuclear shape
Relationship bull sperm nuclear shape
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2008/12/29
The relationship between sperm nuclear shape and bull fertility was determined. Two groups of bulls, 3 per group, were selected. Bulls differed in fertility based on lifetime nonreturn rates. Digita...
Measurement of bovine sperm nuclear shape using Fourier harmonic amplitudes
bovine sperm nuclear shape
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2008/12/29
An objective method for measuring bovine sperm nuclear shape was developed. Digital images of bovine sperm stained with propidium iodide were collected and Fourier functions used to describe the per...
Sperm Nuclear Histone to Protamine Ratio in Fertile and Infertile Men：Evidence of Heterogeneous Subpopulations of Spermatozoa in the Ejaculate
Sperm DNA male infertility
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2008/12/24
Sperm protamine deficiency is observed in a subset of infertile men, suggesting that the relative histone to protamine ratio may be altered in the spermatozoa of these men. We measured the ratio of ...
Infertile Men With Varicocele Show a High Relative Proportion of Sperm Cells With Intense Nuclear Damage Level, Evidenced by the Sperm Chromatin Dispersion Test
Human sperm DNA fragmentation
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2008/12/23
The frequency of sperm cells with fragmented DNA was studied in a group of 18 infertile patients with varicocele and compared with those obtained in a group of 51 normozoospermic patients, 103 patie...
Effect of Vasectomy on Sperm Nuclear Chromatin Condensation in the Rabbit
Protamine spermatogenesis vasectomy
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2008/12/23
Histone-to-protamine exchange in haploid spermatids is known to play a central role for male fertility. The present study investigates, for the first time, the effects of vasectomy on the expression...
Activation of the Nuclear Factor Kappa B Pathway Following Ischemia-Reperfusion of the Murine Testis
Testicular oxidative stress apoptosis NF-B activation
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2008/12/23
Ischemia-reperfusion (IR) of the testis results in testicular oxidative stress and germ cell-specific apoptosis. Nuclear factor kappa B (NF-B) is a nuclear transcription factor involved in the control...