The Efficacy, Safety and Tolerability of Intracavernous Pnu-83757 for the Treatment of Erectile Dysfunction

Vick, Ralph N.; Benevides, Marc; Patel, Manish; Parivar, Karoush; Linnet, Otto; Carson, Culley C.

doi:10.1016/s0022-5347(05)65047-1

Cited by 9 publications

(1 citation statement)

References 2 publications

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“…Pharmacological stimulation of K ATP channels induces relaxation of penile smooth muscle [58]. Furthermore, PNU‐83757, an opener of K ATP channels, has been shown to be effective to induce penile erection when intracavernosally administered in patients with erectile dysfunction [59].…”

Section: Physiological Regulation Of Penile Smooth Muscle Tonementioning

confidence: 99%

Physiology of Erectile Function

Tejada¹,

Angulo²,

Cellek

et al. 2004

The Journal of Sexual Medicine

120

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Introduction There are numerous investigations concerning the balance and interactions between relaxant and contractile factors regulating penile smooth muscle (arterial and trabecular) tone, the determinant of penile flaccidity or erection. Enhanced knowledge of erectile physiology may improve management of men with erectile dysfunction. Aim To provide state-of-the-art knowledge on the physiology of erectile function. Methods An international consultation in collaboration with the major urology and sexual medicine associations assembled over 200 multidisciplinary experts from 60 countries into 17 committees. Committee members established specific objectives and scopes for various male and female sexual medicine topics. The recommendations concerning state-of-the-art knowledge in the respective sexual medicine topic represent the opinion of experts from five continents developed in a process over a two-year period. Concerning the physiology of erectile function and pathophysiology of erectile dysfunction committee, there were seven experts from five countries. Main Outcome Measure Expert opinion was based on the grading of evidence-based medical literature, widespread internal committee discussion, public presentation, and debate. Results Key roles in the mechanism determining the tone of penile smooth muscle are played by the rise of the intracellular concentration of free calcium and the sensitivity of the contractile machinery to calcium, endothelial health, endothelium-derived nitric oxide, endothelium-derived hyperpolarizing factor (EDHF), neuronal nitric oxide, cyclic guanosine monophosphate-dependent protein kinase and phosphodiesterase type 5. Conclusion A number of new mechanisms have been identified for the local regulation of penile smooth muscle contractility and therefore penile erection. Molecules participating in these pathways can be considered targets for the development of new treatments to treat erectile dysfunction.

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Section: Physiological Regulation Of Penile Smooth Muscle Tonementioning

confidence: 99%