搜索结果: 1-15 共查到“性科学 nitric oxide”相关记录23条 . 查询时间(0.381 秒)
Involvement of endothelial nitric oxide synthase in the impaired endothelium-dependent relaxation of cavernous smooth muscle in hypercholesterolemic rabbit
Hypercholesterolemia cavernous smooth muscle
2009/2/18
The present study was designed to evaluate whether functional impairment and/or protein expression of constitutive nitric oxide synthase (cNOS; endothelial NOS [eNOS] and neuronal NOS[nNOS]) was i...
Sperm motility enhancement by nitric oxide produced by the oocytes of fathead minnows, Pimephelas promelas
Fertilization CASA electron spin resonance oocyte
2009/2/18
The effects of nitric oxide (NO) on sperm motility were examined in the fathead minnow, Pimephelas promelas, using computer-assisted sperm analysis (CASA). The observed effects underscore the dual n...
Neuronal nitric oxide synthase in the canine prostate：aging, sex steroid, and pathology correlations
Testis imprinting BPH atrophy testosterone
2009/2/17
Nitric oxide synthase (NOS) is expressed in the prostate of various species, including humans. NOS catalyzes the production of nitric oxide (NO), which may function in prostatic smooth-muscle relaxa...
Evidence for nitric oxide regulation of hamster sperm hyperactivation
Sperm motility nitric oxide synthase sodium nitroprusside
2009/2/17
Involvement of reactive oxygen species has been implicated in the process of hyperactivation and capacitation of sperm. Nitric oxide has recently been found to function both as an intracellular a...
Androgenic maintenance of the rat erectile response via a non-nitric-oxide-dependent pathway
Penile erection testosterone cGMP phosphodiesterase
2009/2/17
Prior studies have demonstrated that the erectile response in the rat penis is androgen dependent and is mediated by nitric oxide (NO), the neurotransmitter synthesized by the enzyme nitric oxide ...
Evidence for a role of intracellular-calcium release in nitric oxide-stimulated relaxation of the rabbit corpus cavernosum
Calcium erection thapsigargin ryanodine
2009/2/17
Erection is mediated by relaxation of the smooth muscle elements within the sinusoids of the corpus cavernosum. Although cavernosal relaxation can be mediated by a variety of mechanisms including pu...
Analysis of the effect of nitric oxide synthase inhibition on mouse sperm employing a modified staining method for assessment of the acrosome reaction
Nitric oxide synthase acrosome reaction
2009/2/17
A commercially available staining kit (Spermac) was combined with swelling in a hypoosmotic medium (HOS) for simultaneous assessment of viability and acrosome reaction in mouse spermatozoa. We com...
Expression of inducible nitric oxide synthase in smooth muscle cells from rat penile corpora cavernosa
inducible nitric oxide synthase smooth muscle cells rat penile corpora cavernosa
2009/2/13
Nitric oxide (NO), the main mediator of penile erection, is assumed to be synthesized in the penis by the neuronal constitutive nitric oxide synthase (nNOS). However, nNOS has not been identifie...
Low levels of nitric oxide promote human sperm capacitation in vitro
NONOates reactive oxygen species catalase hydrogen peroxide peroxinitrite nitric oxide synthase
2009/2/13
The influence of nitric oxide on human sperm hyperactivation and capacitation, as well as its mechanism of action and its possible origin from spermatozoa were studied. Percoll-washed spermatozoa ...
The potent relaxant effect of adenosine in rabbit corpora cavernosa is nitric oxide independent and mediated by A2 receptors
Erection adenosine relaxation penis impotence
2009/2/13
In the present study the effect of adenosine and adenosine analogues on rabbit isolated cavernosal smooth muscle has been evaluated in comparison with the effect of acetylcholine and electrical fi...
Intracavernosal sildenafil facilitates penile erection independent of the nitric oxide pathway
Erectile dysfunction impotence priapism Viagra
2008/12/29
Sildenafil, in nanomolar serum levels, is an effective phosphodiesterase type 5 inhibitor, and facilitates penile erection only during sexual stimulation. However, there is limited information on th...
Evaluation of nitric oxide synthase and arginase in the induction of a Peyronie's-like condition in the rat
nitric oxide synthase arginase Peyronie's-like condition rat
2008/12/26
Peyronie's disease is an idiopathic, localized connective tissue disorder of the penis, involving the tunica albuginea of the corpus cavernosum and adjacent areolar space. Current proposals as to the ...
Protein and gene expression of nitric oxide synthase isoforms I and III in the rat penile shaft
Protein gene expression nitric oxide synthase penile shaft
2008/12/26
Nitric oxide synthase (NOS) plays a key role in penile smooth muscle relaxation through the regulation of nitric oxide (NO). NO is a major neurotransmitter in the autonomic nervous system, and alter...
Nitric oxide induces oxidative stress and mediates cytotoxicity to human cavernosal cells in culture
Nitric oxide mediates cytotoxicity human cavernosal cells
2008/12/26
Nitric oxide (NO) is a product of nitric oxide synthase (NOS) activity and is recognized as the main mediator of penile erection by induction of cavernosal smooth muscle relaxation. Although excessive...
Interleukin-1beta regulates nitric oxide production and gamma-glutamyl transpeptidase activity in sertoli cells
nitric oxide production gamma-glutamyl transpeptidase activity sertoli cells
2008/12/25
Several cytokines have been involved in the regulation of Sertoli cell function. Further investigations are required to elucidate the role of interleukin-1beta (IL1beta) in Sertoli cell physiology. ...