Abstract：
:To date, the effects of long-term testosterone (T) administration on the human vagina are not completely understood. Thus, the aim of this study was to investigate the effects of long-term T treatment on vaginal tissue histology, estrogen receptor alpha (ERα) and beta (ERβ) expression and proliferation in female to male transsexual subjects (FtM). We compared vaginal samples from FtM subjects with those of premenopausal women (PrM) and postmenopausal women (M) not receiving any hormonal treatment for at least 2 years. Vaginal tissue samples from 16 FtM subjects treated with T (intramuscular injections of 100 mg Testoviron Depot/7-10 days for at least 1 year), undergoing sex reassignment surgery, and 16 PrM and 16 M subjects undergoing a vaginal hysterectomy for prolapse, were collected. For each sample, morphology, glycogen content, proliferation (ki-67), ERα and ERβ expression were evaluated. Vaginal samples from FtM showed a loss of normal architecture of the epithelium, intermediate and superficial layers were completely lost, and glycogen content was depleted. T administration resulted in a strong proliferation reduction when compared with both M and PrM subjects. Stromal and epithelial ERα as well as ERβ were significantly decreased in FtM when compared with PrM subjects. In conclusion, our data suggests that systemic T administration at supraphysiological dosage, determines profound changes in histomorphology and reduces ERs expression and proliferation of vaginal epithelium.
journal_name
Int J Impot Resjournal_title
International journal of impotence researchauthors
Baldassarre M,Giannone FA,Foschini MP,Battaglia C,Busacchi P,Venturoli S,Meriggiola MCdoi
10.1038/ijir.2013.9subject
Has Abstractpub_date
2013-09-01 00:00:00pages
172-7issue
5eissn
0955-9930issn
1476-5489pii
ijir20139journal_volume
25pub_type
杂志文章abstract：:The aims of this study were to investigate the prevalence of ED in Chinese men with type 2 diabetes mellitus, and evaluate the efficacy and safety of sildenafil citrate in these patients. Patients from 42 outpatient diabetes clinics with type 2 diabetes mellitus and ED as defined by the International Index of Erectile...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2010.21
更新日期：2010-09-01 00:00:00
abstract：:Radical prostatectomy has been shown to have a potential negative impact on penile health. Stretched penile length (SPL), which most closely correlates with erect penile length, was significantly reduced in almost half of men undergoing surgery in several studies. The purpose of this study was to test whether early in...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901561
更新日期：2007-09-01 00:00:00
abstract：:Penile intra-epithelial neoplasia (PeIN) is a known precursor for penile cancer. It may be undifferentiated or differentiated. The former is related to high-risk Human Papilloma Virus (HPV) and associated with p16 over-expression. Patients may present with red patches or lesions on the penis which on occasion may affe...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-020-0327-4
更新日期：2020-07-24 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：:The objective was to study available evidence for ingredients of popular over-the-counter testosterone and erectile dysfunction (ED) supplements. The top 16 male testosterone and 16 ED supplements in the USA were identified from the most popular online retailers: A1 Supplements, Amazon, Vitamin Shoppe, and Walmart. In...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-020-0285-x
更新日期：2020-05-01 00:00:00
abstract：:Fifty partial and non-responders (Clinical Global Impression-Sexual Function (CGI-SF) score>2), out of 76 men who completed a 6-week, double-blind, placebo-controlled trial of sildenafil treatment for serotonergic antidepressant-associated sexual dysfunction, were eligible for an additional 6-week trial of open-label ...
journal_title：International journal of impotence research
pub_type： 杂志文章,随机对照试验
doi：10.1038/sj.ijir.3901502
更新日期：2007-03-01 00:00:00
abstract：:The objective was to describe funding sources and publication trends for the primary literature on Peyronie's disease (PD), including direct industry research support. A search of EMBASE, PubMed, Scopus, and Web of Science was performed to identify articles published from 2006 to 2018. Articles not published in Englis...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-020-0244-6
更新日期：2021-01-01 00:00:00
abstract：:In order to assess the effectiveness of sildenafil under routine conditions of use in primary care settings and to evaluate its impact on patient's life satisfaction and partner's satisfaction with treatment for erectile dysfunction (ED), an open, multicentre, observational, prospective study was designed in which 281...
journal_title：International journal of impotence research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1038/sj.ijir.3900782
更新日期：2001-12-01 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：:A lack of uniformity exists for insurance payer coverage for all categories of penile prostheses (PP). We sought to determine common insurance coverage criteria and barriers to implantation across common insurance plans from healthcare referral regions (HRR) nationwide. Coverage criteria and stipulations were reviewed...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-019-0226-8
更新日期：2021-01-01 00:00:00
abstract：:Penile implant malfunction is usually treated by removal of the original malfunctioning implant followed by replacement with a new device. During replacement, the original implant can be explanted without any difficulty, as it is not adherent to the surrounding tissue. Herein, we describe two cases of tissue ingrowth ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901217
更新日期：2004-04-01 00:00:00
abstract：:Routine removal of the reservoir in explanting a malfunctioning three-piece penile implant raises debates because that the retained reservoir has little risk of erosion and it often needs a second incision to remove the reservoir. We reported a case whose retained reservoir resulted in nonbacterial inflammation around...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901402
更新日期：2006-05-01 00:00:00
abstract：:Erectile dysfunction (ED) can be an early and first sign of an underlying systemic disease. A screening program is offered by the Israeli Defense Force for career servicemen at the staff periodic examination center (SPEC), the aim of which was early detection of morbidity. We introduced the Sexual Human Inventory for ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901173
更新日期：2004-08-01 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：:This workshop completes the trilogy of nuances of the various incisions used to place an inflatable penile prosthesis (IPP). Infrapubic placement was the original technique employed 50 years ago for the very first IPP surgeries. The historical perspective of the development of implantation incisions and the original S...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/s41443-020-00370-y
更新日期：2020-12-18 00:00:00
abstract：:The aim of the present study was to investigate which PD specific factors (e.g., degree of penile curvature, levels of pain) cause most distress and to further explore whether there are specific subgroups of patients that report particularly high levels of psychological distress. Data were available for N = 119 men wi...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-018-0029-3
更新日期：2018-08-01 00:00:00
abstract：:Premature ejaculation (PE), the most common sexual dysfunctions in men, is characterized by loss or absence of ejaculatory control. PE can be classified as either a lifelong or acquired condition. Although the prevalence of lifelong PE is rather low in the general male population, recent studies demonstrated that the ...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/ijir.2012.12
更新日期：2012-09-01 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：:In a study on the diagnosis and treatment of erectile dysfunction (ED) in general practice, a self-selected sample of 90 general practitioners (GPs) (76 males, 14 females) from a predominantly urban population of 525 GPs were interviewed. It appeared that 59% would not actively interrogate a patient when an erection p...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：
更新日期：1994-06-01 00:00:00
abstract：:The objective of this study was to evaluate the effect on erections of impeding venous blood flow following intracavernosal injections of prostaglandin E1. Dispersion of injected X-ray contrast medium indicated that application of the RMRI penile clamp to the base of the penis retarded venous outflow. The clamp was th...
journal_title：International journal of impotence research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1995-03-01 00:00:00
abstract：:This paper: (i) describes the worldwide prevalence of erectile dysfunction (ED); (ii) presents age-specific incidence rates for ED in the US; (iii) summarizes some key epidemiologic correlates of ED in the general population; and (iv) considers the possibility that ED may be a biobehavioral marker (sentinel event) of ...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/sj.ijir.3900567
更新日期：2000-10-01 00:00:00
abstract：:The clinical profile for apomorphine sublingual (SL), a new centrally active agent for the management of the erectile dysfunction (ED) patient, is described in this article. Apomorphine SL is shown to be rapid in onset (71% of patients within 20 min) with a consistent, predictable response that is independent of sever...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/sj.ijir.3900721
更新日期：2001-08-01 00:00:00
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：: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 release of mediator substances of the arachidonic acid cascade is closely related to the functional state of the endothelium. A significant lower prostacyclin/thromboxane A2 ratio in penile plasma of organogenic impotent patients in comparison to patients with psychogenic erectile dysfunction has been described in...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：
更新日期：1993-03-01 00:00:00
abstract：:We estimated the incidence of erectile dysfunction (ED) in a population-based sample during 5-y follow-up and determined how the rate was affected by sociodemographic and life-style factors. The target population comprised all men aged 50, 60 or 70 y residing in the city of Tampere or 11 surrounding municipalities in ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901196
更新日期：2004-10-01 00:00:00
abstract：:This research was carried out to evaluate the prevalence of carotid and/or lower limb artery abnormalities in patients with arterial erectile dysfunction (ED). To this end, patients with ED (Andrology Unit) or suspected peripheral atherosclerosis (Angiology Unit) underwent an independent and parallel echo-Duplex exami...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901312
更新日期：2005-05-01 00:00:00
abstract：:In several studies we have recently demonstrated that orgasm induces prolactin secretion in healthy males and females. This suggests that prolactin may form a feedback regulator of the refractory period following orgasm. To examine this position we investigated the prolactin response of a healthy multi-orgasmic male s...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900823
更新日期：2002-04-01 00:00:00
abstract：:Several trials and reviews provide evidence for the efficacy of phosphodiesterase-5 inhibitors in the treatment of erectile dysfunction (ED). However, little is known about the impact of treatment effect modifiers other than concomitant diseases. Our objective was to identify patient and trial characteristics as well ...
journal_title：International journal of impotence research
pub_type： 杂志文章,meta分析
doi：10.1038/sj.ijir.3901479
更新日期：2006-11-01 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
