Abstract：
:The effects of hypoxia (pO2: 50 mmHg), acidosis (pH: 6.9) or glucopenia (absence of glucose) in vitro on the tone of the rabbit corpus cavernosum were investigated. The recovery of smooth muscle contractility following exposure to these conditions was also assessed. Hypoxia, acidosis or glucopenia alone or in combination showed a sustained reduction in the tone. Reperfusion of tissue strips showed complete recovery of smooth muscle tone for all conditions except when hypoxia and glucopenia were combined or when hypoxia, glucopenia and acidosis were used in combination. Incomplete recovery of tone was associated with a significant reduction in tissue ATP concentrations and an increase in the number of TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick-end labelling)-positive nuclei. This indicates that following reversal of hypoxia, acidosis and glucopenia, failure of conventional alpha-adrenergic agonists to produce tumescence in low flow priapism is associated with irreversible smooth muscle cell dysfunction, which is linked to ATP reduction and smooth muscle cell death.
journal_name
Int J Impot Resjournal_title
International journal of impotence researchauthors
Muneer A,Cellek S,Dogan A,Kell PD,Ralph DJ,Minhas Sdoi
10.1038/sj.ijir.3901231subject
Has Abstractpub_date
2005-01-01 00:00:00pages
10-8issue
1eissn
0955-9930issn
1476-5489pii
3901231journal_volume
17pub_type
杂志文章abstract：:Although decline in sexual function is a common reason for ageing men to seek advice regarding testosterone therapy, placebo-controlled trial data have been unable to show a consistent, beneficial role for testosterone. The objective of this study was to determine the effect of testosterone therapy on sexual function ...
journal_title：International journal of impotence research
pub_type： 杂志文章,随机对照试验
doi：10.1038/ijir.2008.22
更新日期：2008-07-01 00:00:00
abstract：:The penoscrotal (PS), infrapubic (IP), and subcoronal (SC) incisions are used for inserting an inflatable penile prosthesis (IPP). Each surgical approach has its advantages and disadvantages and experts continue to debate which technique has the best outcomes. We performed a critical review of the published English-la...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/s41443-020-0319-4
更新日期：2020-06-02 00:00:00
abstract：:In a prospective, placebo-controlled, one group crossover design study, we tested whether adding programmed intracavernous PGE1 injections (IC-PGE1) can improve the effectiveness of sildenafil in erectile dysfunction (ED) patients unresponsive to monotherapy with this drug. In all, 40 ED patients who had experienced u...
journal_title：International journal of impotence research
pub_type： 临床试验,杂志文章
doi：10.1038/sj.ijir.3901290
更新日期：2005-07-01 00:00:00
abstract：:Although several studies on toxic effect of aspartame metabolite have been studied, controversial reports over the use of aspartame owing to the fact that it releases methanol as one of its metabolite during metabolism exist. This present study is proposed to investigate whether aspartame (40 mg kg-1 b.wt) administrat...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2017.17
更新日期：2017-07-01 00:00:00
abstract：:Sexual dysfunction is a common problem of increasing incidence that is associated with multiple co-morbid conditions and chronic diseases. In heart failure, however, exact numbers are unknown, in part secondary to under-reporting and under-interrogating by health care providers. A gender-specific questionnaire was mod...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901613
更新日期：2008-01-01 00:00:00
abstract：:Chronic hypoxia is related to many pathological conditions: aging, heart and respiratory failure, sleep apneas, smoke, chronic obstructive pulmonary disease (COPD), diabetes, hypertension and arteriosclerosis, all characterized by reductions of sleep-related erections (SREs) and by erectile dysfunction (ED). Sleep-rel...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901560
更新日期：2007-09-01 00:00:00
abstract：:Even with the help of modern pharmacology, treatment of erectile dysfunction often remains complex, and requires taking into account the social, psychological, and behavioral dimensions of the disorder. This brief report presents a case study highlighting this complexity. ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901322
更新日期：2005-07-01 00:00:00
abstract：:There is evidence that emotional intimacy can buffer the distress associated with sexual difficulties. Considering that older adults are at an increased risk of chronic illness, many of which (including their medical treatment) can impact their sexual well-being, the link between intimacy and sexual distress may be pa...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-019-0214-z
更新日期：2020-09-01 00:00:00
abstract：:Coronavirus disease 2019 (COVID-19) pandemic has been continuing to affect the lives of all people globally. It has been shown that restrictions due to changes in lifestyles lead to mental health problems. This study aims to investigate the effect of COVID-19 pandemic on couples' sexuality. A total of 245 volunteers (...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-020-00378-4
更新日期：2020-12-16 00:00:00
abstract：OBJECTIVES:Quality of life (QOL) data were used to evaluate the effects of self-administered intracavernosal injection of alprostadil for erectile dysfunction, when used for up to 18 months during a 13 country Phase III clinical trial. METHODS:The Duke Health Profile was used to measure patients' physical and psychoso...
journal_title：International journal of impotence research
pub_type： 临床试验,杂志文章
doi：10.1038/sj.ijir.3900364
更新日期：1998-12-01 00:00:00
abstract：:The transient receptor potential cationic channel type A1 (TRPA1), belonging to a superfamily of cationic membrane channels, has been suggested to act as mechano- and pain sensor and, thus, to play a role in neurotransmission in the human body, including the urogenital tract. While the expression of TRPA1 has been inv...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2014.23
更新日期：2015-01-01 00:00:00
abstract：:The aim of the study was to determine whether any difference would occur in peak systolic velocity (PSV) and end diastolic velocity (EDV) measurements of color Doppler ultrasonography (CDU) between proximal and distal segments of the cavernous arteries obtained at different times. Twenty-six cases have undergone CDU t...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900304
更新日期：1998-03-01 00:00:00
abstract：:Venous insufficiency of the corpora cavernosa is the second most common cause of erectile dysfunction (ED). A functional insufficiency of the venous system has been hypothesised, but the cause is still unclear. To evaluate a possible endocrine mechanism, we have studied hormone profile in a group of nine patients with...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901287
更新日期：2005-05-01 00:00:00
abstract：:Hypercholesterolemia is a major risk factor for erectile dysfunction. To understand the mechanism(s) of hypercholesterolemia-induced erectile dysfunction, we studied the effect of lysophosphatidylcholine (LPC) on the membrane conductance of corporal smooth muscle cells. We used cultured human corporal smooth muscle ce...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901356
更新日期：2005-11-01 00:00:00
abstract：:Sildenafil citrate, marketed as Viagra, for the treatment of erectile dysfunction, has a proven record of safety in humans as predicted by the results of extensive pharmacological and toxicological testing in animals and in vitro, and confirmed by pharmacokinetic exposure data. The aim of this paper is to review succi...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/sj.ijir.3901232
更新日期：2004-12-01 00:00:00
abstract：:Sildenafil citrate has been shown to be effective in a wide range of patients with erectile dysfunction and has been approved in the United States for this indication. The overall clinical safety of oral sildenafil, a potent inhibitor of phosphodiesterase type 5, in the treatment of erectile dysfunction was evaluated ...
journal_title：International journal of impotence research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1038/sj.ijir.3900354
更新日期：1998-06-01 00:00:00
abstract：:Vibrotactile stimulation, when used in combination with visual sexual stimulation, has been shown to enhance erectile response in sexually functional men. The present study attempted to describe a diagnostic methodology, including the development and application of a new mini-vibrator, that might enhance penile respon...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：:The aim of this study was to report feasibility, benefit and complications of superselective transcatheter autologous clot embolizations and duplex sonography-guided compression therapy in four patients with delayed post-traumatic high-flow priapism. Medical records of four consecutive patients diagnosed with delayed ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901373
更新日期：2006-03-01 00:00:00
abstract：:Nitric oxide (NO) is a physiologic signal essential to penile erection, and disorders that reduce NO synthesis or release in the erectile tissue are commonly associated with erectile dysfunction. NO synthase (NOS) catalyzes production of NO from L-arginine. While both constitutively expressed neuronal NOS (nNOS) and e...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/sj.ijir.3901209
更新日期：2004-06-01 00:00:00
abstract：:The activation of cavernous local renin-angiotensin system has an important role in pathogenesis of diabetic erectile dysfunction (ED). In our primary study, we found that angiotensin Type 1 receptor blocker improved the erectile function of diabetic rats. Therefore we explored the losartan in clinical treatment for d...
journal_title：International journal of impotence research
pub_type： 杂志文章,随机对照试验
doi：10.1038/ijir.2012.4
更新日期：2012-11-01 00:00:00
abstract：BACKGROUND:The objective was to collect characteristics of patients with male erectile disorder (MED) attending a male sexual dysfunction clinic and determine the level of psychological morbidity whilst recruiting subjects into a psychotherapy study. METHODS:This was a study of data of 132 patients diagnosed as having...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900295
更新日期：1997-12-01 00:00:00
abstract：:Erectile dysfunction (ED) is linked to various cardiovascular risk factors and may therefore serve as a predictor of cardiovascular events. To gain further insight into this relationship, we reviewed all data regarding hospital admission for cardial or cerebral vascular disease that occurred until 2008 in a cohort of ...
journal_title：International journal of impotence research
pub_type： 杂志文章,随机对照试验
doi：10.1038/ijir.2009.40
更新日期：2010-01-01 00:00:00
abstract：:This prospective study determined the rate of abandonment of sildenafil therapy and assessed the reasons for abandonment. Between January 2001 and December 2002, 234 patients with erectile dysfunction (ED) at three independent centers successfully began therapy with sildenafil 50 or 100 mg. The rate of noncompliance w...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901252
更新日期：2005-01-01 00:00:00
abstract：:The objective of the study was to evaluate the relationship between the sexual position and severity of penile fracture (PF). We studied 90 patients with PF. The mechanism of injury and the sexual position was assessed. We divided our sample by the etiology of the fracture in six groups: (a) masturbation or penile man...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2017.24
更新日期：2017-09-01 00:00:00
abstract：:Modulation of the adrenergic activity and interfering with channels such as potassium channels may affect relaxation and contraction of the corpus cavernosum. Sildenafil is a selective phosphodiesterase-5 inhibitor, proven effective in treating erectile dysfunction. In this study, the effect of sildenafil citrate on a...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901590
更新日期：2007-11-01 00:00:00
abstract：:Forty-four men aged 20-56 years (mean 42) complaining a venous erectile dysfunction underwent penile venous surgery. Fifteen patients (34.1%) were treated by DDVL, 29 cases (65.9%) underwent DDVL + corporopexy. All patients were followed-up at short and long-term periods. In short-term follow-up, eight patients (57.2%...
journal_title：International journal of impotence research
pub_type： 临床试验,杂志文章
doi：
更新日期：1996-03-01 00:00:00
abstract：:Erectile dysfunction (ED) develops owing to psychogenic, organic or/and both of these two factors. The aim of this study was to investigate the relationship between penile cavernosal arterial flow and peripheral atherosclerosis in men with ED. This study was conducted on 102 patients who had presented to Radiology Cli...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2013.35
更新日期：2014-03-01 00:00:00
abstract：:Nitric oxide (NO) is an important mediator in the cavernosal smooth muscle relaxation that causes erections. The purpose of this study was to examine the existence, distribution and phosphorylation stage of two recently discovered key enzymes for NO regulation in human cavernosal tissue, the MAP Kinase 1/2 (Erk 1/2) a...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900856
更新日期：2002-08-01 00:00:00
abstract：:The relation between coronary artery ectasia (CAE) and erectile dysfunction (ED) has not been studied so far. Hence, we decided to investigate the erectile function score in patients with CAE. We investigated the international index of erectile function (IIEF)-5 score in 34 men with CAE, 38 men with coronary artery di...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2011.10
更新日期：2011-05-01 00:00:00
abstract：:The frequency of sexual dysfunction (SD) is not very well known in patients with chronic hepatitis C. In this study, the prevalence of SD and its correlations with psychological and biological variables was assessed in 46 HCV positive patients. The mean age of patients was 46.4+/-9.4 y; the mean duration of HCV infect...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901267
更新日期：2005-03-01 00:00:00
