Abstract:
:To date, no effective medical approach for the treatment of erectile dysfunction (ED) secondary to ischemic priapism (IP) has been described. The aim of this study was to evaluate the anti-inflammatory, antifibrotic, and antioxidant effects of pirfenidone (PFD) on cavernosal tissue in a rat model of IP. Forty-eight male albino rats aged 8-10 months, with mean weights of 410 ± 18.6 g were randomized into four groups (n = 12 in each group): no IP (group 1); IP for 1 h, followed by intracavernosal pressure (ICP) measurements using electrical cavernous nerve stimulation (CNS) (group 2); IP for 1 h, followed by ICP measurements using electrical CNS 6 weeks later (group 3); and IP for 1 h, oral PFD (30 mg/kg once daily) treatment by oral gavage, followed by ICP measurements using electrical CNS 6 weeks later (group 4). Malondialdehyde (MDA) and reduced glutathione levels were measured spectrophotometrically. In a histological evaluation, cavernosal collagen/smooth muscle ratios were calculated. The intracavernosal pressure values of group 1 were higher than those of groups 2 and 3 (p < 0.05) but similar to those of group 4 (p > 0.05). The mean MDA level was significantly higher in group 3, as compared with that in group 4 (p = 0.004). The mean collagen/smooth muscle ratio in groups 1-4 was 24%, 42%, 65%, and 48%, respectively. Physiological, biochemical, and histopathological evaluations of the PFD effect on cavernosal tissue in a rat model of IP were the strengths and the lack of molecular and immunohistochemical analysis were the limitations of this study. In this study, we examined the effects of PFD on cavernosal tissue in a rat model of IP. We found that PFD reduced cavernosal fibrotic activity and improved erectile function. We conclude that PFD may represent a new treatment option in IP treatment.
journal_name
Int J Impot Resjournal_title
International journal of impotence researchauthors
Cinar O,Bolat MS,Erdem S,Kaymaz E,Demirkiran ED,Girgin R,Bulut E,Akduman B,Mungan NAdoi
10.1038/s41443-019-0152-9subject
Has Abstractpub_date
2020-03-01 00:00:00pages
232-238issue
2eissn
0955-9930issn
1476-5489pii
10.1038/s41443-019-0152-9journal_volume
32pub_type
杂志文章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::Research in the field of erectile function and dysfunction has continued to expand rapidly. Based on the information available, some directions for future erectile dysfunction therapies can be identified. The first direction is improvement of current therapeutic principles. A second generation of orally active phospho...
journal_title:International journal of impotence research
pub_type: 杂志文章,评审
doi:10.1038/sj.ijir.3900797
更新日期:2002-02-01 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::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::Radical retropubic prostatectomy (RRP) is an important cause of iatrogenic erectile dysfunction (ED). While sildenafil has been widely used since its introduction as a new treatment option for ED, its efficacy in post-RRP patients has not been extensively studied. We retrospectively compared the efficacy of sildenafil...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3900525
更新日期:2000-06-01 00:00:00
abstract::The objective of this study was to determine the cardiovascular risk factors among men with erectile dysfunction (ED) at a hospital-based primary care clinic in Riyadh, Saudi Arabia. A cross-sectional study was conducted at a primary care clinic in the King Khalid University Hospital (Riyadh, Saudi Arabia), during the...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/ijir.2009.36
更新日期:2009-11-01 00:00:00
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 combinat...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3901231
更新日期:2005-01-01 00:00:00
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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 present study provides a review of stem cell therapy as a treatment of erectile dysfunction from peer-reviewed human and animal trials. A literature search was conducted in PubMed-Medline, Scopus, Embase, and Cochrane databases. Tweenty-three animal studies and seven human studies in the period from 1st of January...
journal_title:International journal of impotence research
pub_type: 杂志文章,评审
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更新日期:2021-01-15 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 first goal of this study was to examine the effect of secondhand smoking on neurogenic, endothelium- and cGMP-dependent relaxant responses of rabbit corpus cavernosum smooth muscle. Our second goal was to determine whether such an effect can be prevented by oral administration of L-arginine. Male New Zealand rabbi...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3901341
更新日期:2005-09-01 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::There is considerable interest in understanding the genetics of erectile dysfunction (ED). Since early twin studies that suggested a genetic component to ED, multiple candidate gene studies have identified genetic variants that may be associated with ED. Genome-wide association studies (GWAS) have overcome some of the...
journal_title:International journal of impotence research
pub_type: 杂志文章,评审
doi:10.1038/s41443-020-00372-w
更新日期:2020-11-10 00:00:00
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journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3901331
更新日期:2005-09-01 00:00:00
abstract::The objective of this study was to investigate the predictive validity of the Dutch translation of the Golombok Rust Inventory of Sexual Satisfaction (GRISS) for the presence of clinically relevant sexual dysfunctions and patient's need of help. A total of 57 male urological outpatients (age 50.7+/-13.2 y; range 27-77...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3900966
更新日期:2003-04-01 00:00:00
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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
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journal_title:International journal of impotence research
pub_type: 杂志文章,评审
doi:10.1038/s41443-019-0179-y
更新日期:2020-01-01 00:00:00
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journal_title:International journal of impotence research
pub_type: 杂志文章,评审
doi:10.1038/sj.ijir.3901087
更新日期:2003-10-01 00:00:00
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journal_title:International journal of impotence research
pub_type: 杂志文章
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更新日期:2002-12-01 00:00:00
abstract::The study objective was to evaluate the efficacy of changing testosterone gel preparations among suboptimally responsive hypogonadal men. The records of all hypogonadal men on gel (Testim or Androgel) testosterone replacement therapy (TRT) were reviewed to identify men who underwent a brand substitution in gel TRT due...
journal_title:International journal of impotence research
pub_type: 临床试验,杂志文章
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更新日期:2008-03-01 00:00:00
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journal_title:International journal of impotence research
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract::Early pharmacological prophylaxis has been reported to increase the return of spontaneous erections following radical prostatectomy (RP). In this study, we evaluated the role of intracavernosal alprostadil (PGE1) combined with sildenafil in stimulating early recovery of spontaneous erections following RP. In this pros...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3901448
更新日期:2006-09-01 00:00:00
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 func...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/s41443-018-0090-y
更新日期:2019-03-01 00:00:00
abstract::We have investigated the reliability of intracavernosal prostaglandin E1 (PGE1) office vs self-injection therapy in patients with erectile dysfunction (ED). A total of 298 male patients with ED were enrolled in this study. In all patients, intracavernosal titration of the PGE1 dose was performed. A total of 106 patien...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3901388
更新日期:2006-03-01 00:00:00
abstract::There is strong evidence from multiple epidemological studies that lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) are correlated, independent of age or comorbidities as diabetes or hypertension. Although a direct causal relationship is not established yet, four pathophysiological mechanisms can expl...
journal_title:International journal of impotence research
pub_type: 杂志文章,评审
doi:10.1038/ijir.2011.14
更新日期:2011-05-01 00:00:00
abstract::Peyronie's disease (PD) is a condition characterized by localized and often progressive fibrosis and scarring of the penis. This condition has an unknown etiology although several hypotheses have been proposed. These include traumatic, immunologic and genetic causes. We studied the genetics and immunology of PD using ...
journal_title:International journal of impotence research
pub_type: 杂志文章
doi:10.1038/sj.ijir.3900591
更新日期:2000-10-01 00:00:00
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journal_title:International journal of impotence research
pub_type: 杂志文章,随机对照试验
doi:10.1038/ijir.2010.20
更新日期:2010-09-01 00:00:00
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journal_title:International journal of impotence research
pub_type: 杂志文章,评审
doi:10.1038/ijir.2008.53
更新日期:2008-12-01 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::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