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Synergistic actions of apomorphine and m-chlorophenylpiperazine on ejaculation, but not penile erection in rats
Synergistic actions apomorphine and m-chlorophenylpiperazine rats
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2009/5/8
It has been suggested that dopamine (DA) and serotonin (5-HT) and their receptors, particularly D2-like and 5-HT2C receptors, may play a significant role in the control of male sexual function. The ...
The influence of castration on pharmacologically induced penile erection in the cat
Testosterone vasoactive agents cAMP cGMP
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2009/2/18
The purpose of this study was to investigate the in vivo effects of intracavernosal injections of adrenomedullin (ADM), calcitonin gene-related peptide (CGRP), nociceptin, vasoactive intestinal po...
Androgenic regulation of NO availability in rat penile erection
Rats testosterone nitric oxide
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2009/2/17
Prior studies from this laboratory, using untreated castrated (CASTRATE) rats and testosterone-treated castrated (TESTO) rats, have shown that the magnitude of the intracavernosal pressure increas...
Suppressive effects of chronic hyperprolactinemia on penile erection and yawning following administration of apomorphine to pituitary-transplanted rats
Prolactin testosterone pituitary transplantation castration
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2009/2/17
Recent studies showed in vivo and in vitro that acutely introduced prolactin (PRL) excess was capable of diminishing penile erectile function independently of the LH-testosterone (T) dynamics. In th...
Intracavernosal sildenafil facilitates penile erection independent of the nitric oxide pathway
Erectile dysfunction impotence priapism Viagra
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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...
Penile Erection During Transurethral Surgery
Endoscopy alpha-adrenergic agonists phenylephrine priapism
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2008/12/24
Intraoperative penile erection during endoscopic surgery, although an infrequent occurrence, is a troublesome complication and a challenge to the urologist. It is difficult to perform the procedu...
Control of Penile Erection by the Melanocortinergic System：Experimental Evidences and Therapeutic Perspectives
Penile Erection Melanocortinergic System Experimental Evidences Therapeutic Perspectives
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2008/12/22
Penile erection is the ultimate vasculo-tissular response to an integrated and complex series of physiological processes elicited by psychological, neural, and hemodynamic events (Giuliano and Rampin,...
Nitric Oxide Regulation of Penile Erection: Biology and Therapeutic Implications
Nitric Oxide Regulation Penile Erection Biology Therapeutic Implications
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2008/12/15
For approximately a decade now, substantial evidence has accrued supporting nitric oxide (NO) as the central component of a major signal transduction system that acts in the penis to mediate the erect...
Efficacy of Vardenafil and Sildenafil in Facilitating Penile Erection in an Animal Model
Pelvic nerve-mediated erection intracavernosal pressure
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2008/12/3
Vardenafil and sildenafil are potent and specific phosphodiesterase type 5 (PDE 5) inhibitors. In human penile cavernosal smooth muscle cells, we have previously shown that vardenafil has a lower bi...
Noncholinergic penile erection in mice lacking the gene for endothelial nitric oxide synthase
Noncholinergic penile erection gene endothelial nitric oxide synthase
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2008/12/1
With the current understanding that nitric oxide (NO) mediates penile erection, the endothelial isoform of NO synthase (eNOS) has been implicated in this function. We undertook this study applying t...