Abstract：
:Erectile dysfunction (ED) due to androgen deficiency is rare in the young population. We retrospectively evaluated in this study men aged 18-40 years presenting with ED from 2015 to 2017. The International Index of Erectile Function-5 (IIEF-5) and Erection Hardness Grade Scores (EHGS) were used to assess erectile function. Total testosterone (TT), sex hormone-binding globulin (SHBG), lipid profile, and glycometabolic indicators were tested in fasting blood sample. TT and SHBG were detected by electrochemiluminescence immunoassay, and free (FT) and bio-available testosterone (BT) were calculated from a validated formula. Linear regression was used to analyze the data. In total, 140 cases (30.56 ± 4.81 years) with a mean TT levels of 6.15 ± 2.17 ng/ml were enrolled. Decreased levels of FT were associated with lower IIEF-5 scores(β = 0.176, P = 0.048) and EHGS (β = 0.198, P = 0.026) after adjustment for age, body mass index (BMI), smoking, comorbidities, high-sensitive C-reactive protein (hsCRP), uric acid, fructosamine, and quantitative insulin sensitivity check index (QUICKI). TT was only associated with EHGS in the crude model (β = 0.177, P = 0.037) and some single factor adjustment models, whereas BT and SHBG were not related with erectile function in any model. Low FT level, even in the presence of normal TT, is associated with ED severity in young men. FT levels should be screened in ED patient even with normal total testosterone.
journal_name
Int J Impot Resjournal_title
International journal of impotence researchauthors
Huang YP,Liu W,Chen SF,Liu YD,Chen B,Deng CH,Lu MJdoi
10.1038/s41443-018-0090-ysubject
Has Abstractpub_date
2019-03-01 00:00:00pages
132-138issue
2eissn
0955-9930issn
1476-5489pii
10.1038/s41443-018-0090-yjournal_volume
31pub_type
杂志文章abstract：:The sympathetic nervous system is important for penile function: it mediates detumescence and may contribute to the maintenance of the penis in a non-erect state. The sympathetic preganglionic neurons are found in the intermediolateral gray matter of the spinal cord. Postganglionic neurons are located to the sympathet...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
abstract：:Between December 1996 and December 1998, 79 inflatable penile implant insertions have been performed at our institution by a single surgeon. The objective of this analysis was to compare our in-patient and out-patient experience with penile prosthesis insertion with respect to ease of performance and complication prof...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900695
更新日期：2001-10-01 00:00:00
abstract：:This cohort study aimed to assess the effect of the mode of delivery on female sexual function (FSF) after childbirth. Out of 256 primiparous women, 200 subjects that completed the study were divided into two groups; women that delivered vaginally and women that had elective cesarean section (CS). They were subjected ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2015.2
更新日期：2015-05-01 00:00:00
abstract：:Multiple system atrophy (MSA) is a progressive neurodegenerative disease characterized by parkinsonism and cerebellar, autonomic, urinary, and/or pyramidal dysfunction. Urinary and erectile dysfunction (ED) symptoms are prominent early features in men with MSA. Autonomic failure, considered until recently to be the ca...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901014
更新日期：2003-08-01 00:00:00
abstract：:As lifelong premature ejaculation (PE) and subjective PE are two different PE subtypes, the measurement of their characteristic features requires different objective measures. In this article, we address the differences between lifelong PE and subjective PE, in terms of the extent of variation of sexual performance an...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/s41443-018-0107-6
更新日期：2019-09-01 00:00:00
abstract：:Considering the presence of dopaminergic receptors in the lumbosacral spinal cord, we tested whether apomorphine could exert a proerectile effect by acting at the spinal level. Intracavernous (ICP) and blood pressures (BP) were measured in anesthetized rats. ICP rises were quantified (duration, percentage of ICPmaximu...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900654
更新日期：2001-04-01 00:00:00
abstract：:Phosphodiesterase type 5 (PDE5) inhibitors have reduced efficacy in treating erectile dysfunction (ED) in conditions where there is a lack of endogenous nitric oxide (NO). Therefore, NO-releasing PDE5 inhibitors have been developed. Here we report the effect of such a compound, NCX-911, on the tone and nitrergic relax...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901157
更新日期：2004-04-01 00:00:00
abstract：:The aim of this work was to characterize the effect of experimental diabetes on neurotransmission in rat vagina. Female Sprague-Dawley rats were divided into two groups: non-diabetic controls (NDM, n=38) and diabetics (DM, n=38). DM was produced by intraperitoneal injection of streptozotocin. Eight weeks later the ani...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900648
更新日期：2001-04-01 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：:Isometric tension measurement using a selective Rho-kinase inhibitor (+)- (R)-trans4-(1-aminoethyl)-N-(4-pyridyl)cyclohexanecarboxamide (Y-27632) and a selective myosin light chain kinase (MLCK) inhibitor 1-(5-iodonaphthalene-1-sulfonyl)-1H-hexahydro-1,4-diazepine hydrochloride (ML7) were used in rabbit clitoral caver...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900911
更新日期：2002-12-01 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：:Only few studies have investigated the impact of surgery for rectal cancer on sexual function. Little of that research included quality of life (QoL) aspects and hardly any study analyzed the impact of age, gender and type of surgery on sexual function. The aim of the presented study was to address these issues. Over ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901276
更新日期：2005-05-01 00:00:00
abstract：:Physicians dealing with sexual dysfunction (SD) must consider the psychological and behavioral aspects of their patient's diagnosis and management, as well as organic causes and risk factors. Integrating sex therapy and other psychological techniques into their office practice will improve effectiveness in treating SD...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/sj.ijir.3901075
更新日期：2003-10-01 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：: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：: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：: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
abstract：:Radical prostatectomy (RP) is a commonly performed procedure for the management of prostate cancer. While documented oncologic outcome for early stage disease is excellent, functional impairments such as incontinence and erectile dysfunction (ED) are common after the procedure. Recent evidence has implicated cavernous...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：10.1038/ijir.2011.26
更新日期：2011-09-01 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：: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：:Soluble guanylyl cyclase (sGC) is the major effector molecule for nitric oxide (NO) and as such an interesting therapeutic target for the treatment of erectile dysfunction. To assess the functional importance of the sGCalpha(1)beta(1) isoform in corpus cavernosum (CC) relaxation, CC from male sGCalpha(1)(-/-) and wild...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901627
更新日期：2008-05-01 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：:Adlay (Coix lachryma-jobi L. var. ma-yuen Stapf.) has long been used as a traditional Chinese medicine for dysfunctions of the endocrine system and inflammation conditions. However, the effect of adlay seed on the endocrine system has not yet been reported. In the present study, the effects and the mechanisms of metha...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901405
更新日期：2006-05-01 00:00:00
abstract：:A total of 76 male patients on renal replacement therapy (RRT) were investigated. Erectile dysfunction (ED) was defined as insufficient erection during visual erotic stimulation (VES) or during sleep as measured with Rigiscan and Erectiometer. Data on medical history, physical examination, and laboratory variables wer...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3900946
更新日期：2003-02-01 00:00:00
abstract：:Penile erection is completely dependent on commands from the central nervous system. Spinal centers controlling penile erection are located in the thoracolumbar and lumbosacral spinal cord. These centers are activated by information from the periphery and supraspinal nuclei so as to elicit penile erection in a variety...
journal_title：International journal of impotence research
pub_type： 杂志文章,评审
doi：
更新日期：2000-03-01 00:00:00
abstract：:The aim of this study was to evaluate changes in men's sexual function after percutaneous transluminal coronary angioplasty (PTCA) treatment for acute myocardial infarction (MI). Sixty men aged 18-70 years old were included in the study. All patients had acute MI and underwent PTCA. They underwent two post PCTA visits...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/ijir.2017.11
更新日期：2017-07-01 00:00:00
abstract：:This randomized controlled cross-over study aimed to assess the efficacy and safety of glans penis injection with hyaluronic acid (HA) in treating premature ejaculation (PE). A total of 30 patients with PE were randomly allocated into two groups: group 1 (n = 15) which was subjected to glans penis HA injection and gro...
journal_title：International journal of impotence research
pub_type： 杂志文章,随机对照试验
doi：10.1038/s41443-018-0104-9
更新日期：2019-09-01 00:00:00
abstract：:The human T-lymphotropic virus type I (HTLV-I) is a retrovirus associated with a chronic myelopathy known as HTLV-I-Associated Myelopathy or Tropical Spastic Paraparesis (HAM/TSP). The main objective was to assess the frequency of erectile dysfunction (ED) in HTLV-I-infected individuals from Salvador and other cities ...
journal_title：International journal of impotence research
pub_type： 杂志文章
doi：10.1038/sj.ijir.3901335
更新日期：2005-07-01 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
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
