Author
Yoram Vardi
Other affiliations: Rappaport Faculty of Medicine, Sheba Medical Center, Rambam Health Care Campus
Bio: Yoram Vardi is an academic researcher from Technion – Israel Institute of Technology. The author has contributed to research in topics: Erectile dysfunction & Sexual dysfunction. The author has an hindex of 22, co-authored 46 publications receiving 3535 citations. Previous affiliations of Yoram Vardi include Rappaport Faculty of Medicine & Sheba Medical Center.
Papers
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TL;DR: The updated version of 2009 European Association of Urology guidelines on ED and PE are presented to present, summarising the present information onED and PE.
1,062 citations
Vita-Salute San Raffaele University1, National University of Singapore2, University of Buenos Aires3, University of California, San Francisco4, University of Miami5, Wake Forest Institute for Regenerative Medicine6, University of Western Ontario7, Mayo Clinic8, Johns Hopkins University9, Duke University10, Karolinska University Hospital11, Aristotle University of Thessaloniki12, Tulane University13, Erasmus University Rotterdam14, London Bridge Hospital15, Istanbul University16, Rush University Medical Center17, Georgia Regents University18, University of Florence19, Deakin University20, Cleveland Clinic21, University of Milan22, Memorial Sloan Kettering Cancer Center23, Concordia University Wisconsin24, Valparaiso University25, University of Medicine and Dentistry of New Jersey26, Maimonides Medical Center27, Ludwig Maximilian University of Munich28, Rambam Health Care Campus29, Emory University30
TL;DR: Specific evaluation, treatment guidelines, and algorithms were developed for every sexual dysfunction in men, including erectile dysfunction; disorders of libido, orgasm, and ejaculation; Peyronie's disease; and priapism.
993 citations
TL;DR: Investigation of the physiological role of oxygen tension in the regulation of trabecular smooth muscle tone concluded that physiological concentrations of oxygen modulate penile erection by regulating nitric oxide synthesis in corpus cavernosum tissue.
Abstract: Relaxation of the trabecular smooth muscle of the corpus cavernosum (the erectile tissue) of the penis is mediated by nitric oxide released by the nerves and endothelium. We have investigated the physiological role of oxygen tension in the regulation of trabecular smooth muscle tone. In human subjects, measurement of intracavernosal PO2 in blood drawn from corpus cavernosum in the flaccid state was comparable to that of venous blood (25-43 mmHg). Vasodilatation of the resistance arteries and trabecular smooth muscle relaxation by intracavernosal injection of papaverine and phentolamine caused oxygen tension to rise rapidly to arterial levels (PO2 approximately 100 mmHg). Isolated human and rabbit corpus cavernosum tissue strips in organ baths, exposed to arterial-like PO2 relaxed to the endothelium-dependent dilator acetylcholine and to electrical stimulation of the autonomic dilator nerves. These nitric oxide-mediated responses were progressively inhibited as a function of decreasing PO2 to levels measured in the flaccid penis. Reverting to normoxic conditions readily restored endothelium-dependent and neurogenic relaxation. Relaxation to exogenous nitric oxide was not impaired in low PO2. In rabbit corpus cavernosum, low PO2 reduced basal levels of cGMP and prevented cGMP accumulation induced by stimulation of dilator nerves. Furthermore, low PO2 inhibited nitric oxide synthase activity in corpus cavernosum cytosol. It is concluded that physiological concentrations of oxygen modulate penile erection by regulating nitric oxide synthesis in corpus cavernosum tissue.
307 citations
TL;DR: Significant increases in the duration of erection and penile rigidity, and significant improvement in penile endothelial function were demonstrated, suggesting a physiologic impact on cavernosal hemodynamics.
228 citations
TL;DR: In this paper, the authors provide state-of-the-art knowledge concerning female sexual function in animal models, representing the opinions of seven experts from five countries developed in a consensus process over a 2-year period.
114 citations
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TL;DR: Men and women who rated their health as being poor were less likely to be sexually active and, among respondents who were sexually active, were more likely to reportSexual problems are frequent among older adults, but these problems are infrequently discussed with physicians.
Abstract: BACKGROUND Despite the aging of the population, little is known about the sexual behaviors and sexual function of older people. METHODS We report the prevalence of sexual activity, behaviors, and problems in a national probability sample of 3005 U.S. adults (1550 women and 1455 men) 57 to 85 years of age, and we describe the association of these variables with age and health status. RESULTS The unweighted survey response rate for this probability sample was 74.8%, and the weighted response rate was 75.5%. The prevalence of sexual activity declined with age (73% among respondents who were 57 to 64 years of age, 53% among respondents who were 65 to 74 years of age, and 26% among respondents who were 75 to 85 years of age); women were significantly less likely than men at all ages to report sexual activity. Among respondents who were sexually active, about half of both men and women reported at least one bothersome sexual problem. The most prevalent sexual problems among women were low desire (43%), difficulty with vaginal lubrication (39%), and inability to climax (34%). Among men, the most prevalent sexual problems were erectile difficulties (37%). Fourteen percent of all men reported using medication or supplements to improve sexual function. Men and women who rated their health as being poor were less likely to be sexually active and, among respondents who were sexually active, were more likely to report sexual problems. A total of 38% of men and 22% of women reported having discussed sex with a physician since the age of 50 years. CONCLUSIONS Many older adults are sexually active. Women are less likely than men to have a spousal or other intimate relationship and to be sexually active. Sexual problems are frequent among older adults, but these problems are infrequently discussed with physicians.
1,866 citations
Journal Article•
TL;DR: Male circumcision significantly reduces the risk of HIV acquisition in young men in Africa and should be integrated with other HIV preventive interventions and provided as expeditiously as possible.
1,692 citations
1,685 citations
TL;DR: The updated version of 2009 European Association of Urology guidelines on ED and PE are presented to present, summarising the present information onED and PE.
1,062 citations
TL;DR: The current knowledge regarding potential dietary flavonoid/phenolic-induced toxicity concerns, including their pro-oxidant activity, mitochondrial toxicity (potential apoptosis-inducing properties), and interactions with drug-metabolizing enzymes are summarized.
1,001 citations