The global prevalence of erectile dysfunction: a review

Sexual function and pelvic floor function in men with systemic sclerosis compared to healthy controls: a cross-sectional study

OBJECTIVES

This cross-sectional study aimed to compare the sexual function (SF) and pelvic floor function of men with systemic sclerosis (SSc) with age-matched healthy controls (HC) and to identify the implications of clinical features on SF.

MATERIAL AND METHOD

Twenty SSc males and 20 HC aged 18-70 years completed eleven questionnaires assessing SF [International Index of Erectile Function (IIEF), Male Sexual Health Questionnaire (MSHQ)]; sexual quality of life: Sexual Quality of Life Questionnaire-Male (SQoL-M); pelvic floor function: Pelvic Floor Impact Questionnaire-Short Form 7 (PFIQ-7), fatigue, depression, physical fitness, functional disability, and quality of life. Clinical data were collected.

RESULTS

Significantly worse SF was observed in patients (median IIEF erectile function 12 in SSc versus 29 in HC, p < 0.001), with 70% reporting erectile dysfunction (ED) compared to 15% in HC. However, no significant difference was observed regarding pelvic floor function (median PFIQ7 8.8 in SSc versus 7.0 in HC, p = 0.141). Impaired SF was associated with higher disease activity, increased systemic inflammation, more pronounced fatigue, reduced physical fitness, severe depression, impaired overall quality of life, dyspepsia, and arthralgias (p < 0.05 for all).

CONCLUSIONS

Sexual dysfunction is highly prevalent in our SSc patients, whereas pelvic floor dysfunction is unlikely to be associated with these problems.

Efficacy and safety of PDE5 inhibitors in middle-aged and old patients with and without hypogonadism

PURPOSE

Although several reviews have evaluated the use of PDE5 inhibitors (PDE5i) for treating erectile dysfunction (ED), their specific use in middle-aged and old patients has not been fully evaluated. Given that elderly patients with ED often have a complex combination of systemic and sexual health risk factors, the safety and efficacy of PDE5i in such a context are hereby reviewed.

MATERIALS AND METHODS

A thorough examination of existing literature has been conducted on PubMed.

RESULTS

PDE5i has good safety and efficacy, but the situation is more complex for patients with hypogonadism than those with normal testosterone levels, with reduced responsiveness to PDE5i. In this case, combination therapy with testosterone is recommended, safe and effective.

CONCLUSIONS

Eliminating or reducing reversible risk factors and controlling or slowing the development of irreversible factors is an important foundation for using PDE5i to treat ED in all patients, especially middle-aged and elderly ones.

Associations between organic erectile dysfunction and the risk of herpes zoster and postherpetic neuralgia in men

BACKGROUND

Whether erectile dysfunction (ED) leads to considerable stress for affected men remains unclear? In this study, we investigated whether organic ED (OED) is associated with increased risks of herpes zoster (HZ) and postherpetic neuralgia (PHN).

METHODS

A representative subset of Taiwan's National Health Insurance Research Database was employed for this study. Enrollees with OED from the years 2000 to 2018 were selected. To ensure comparability between the case and control groups, we implemented 1:1 propensity score matching based on age, index year, comorbidities, and medications.

RESULTS

The case group included 20,808 patients with OED, while the control group consisted of 20,808 individuals without OED. The OED group exhibited a significantly elevated risk of HZ (adjusted hazard ratio [aHR] = 1.74) and PHN (aHR = 1.56) compared to the non-OED group.

CONCLUSIONS

Men experiencing OED seem to face elevated risks of HZ and PHN compared to those without OED. ED may serve as a warning sign for individuals at HZ risk.

Prenatal exposure to dibutyl phthalate contributes to erectile dysfunction in offspring male rats by activating the RhoA/ROCK signalling pathway

Prenatal exposure to dibutyl phthalate (DBP) has been reported to cause erectile dysfunction (ED) in adult offspring rats. However, its underlying mechanisms are not fully understood. Previously, we found that DBP activates the RhoA/ROCK pathway in the male reproductive system. This study investigated how prenatal exposure to DBP activates the RhoA/ROCK signalling pathway, leading to ED in male rat offspring. Pregnant rats were stratified into DBP-exposed and NC groups, with the exposed group receiving 750 milligrams per kilogram per day (mg/kg/day) of DBP through gavage from days 14-18 of gestation. DBP exposure activated the RhoA/ROCK pathway in the penile corpus cavernosum (CC) of descendants, causing smooth muscle cell contraction, fibrosis, and apoptosis, all of which contribute to ED. In vitro experiments confirmed that DBP induces apoptosis and RhoA/ROCK pathway activation in CC smooth muscle cells. Treatment of DBP-exposed offspring with the ROCK inhibitor Y-27632 for 8 weeks significantly improved smooth muscle cell condition, erectile function, and reduced fibrosis. Thus, prenatal DBP exposure induces ED in offspring through RhoA/ROCK pathway activation, and the ROCK inhibitor Y-27632 shows potential as an effective treatment for DBP-induced ED.

Associations of remaining teeth number, periodontal disease, and occlusal support status with erectile dysfunction in community-dwelling men

OBJECTIVES

Several systematic reviews and meta-analyses have reported positive relationships between erectile dysfunction (ED) and periodontal disease. However, no study has evaluated the relationships of occlusal support status and the number of remaining teeth with ED. The aim of the present study was to investigate the relationships between ED and the remaining teeth number, periodontal disease, and occlusal support status.

METHODS

This study included 400 community-dwelling men. Periodontal health status and occlusal support condition were evaluated using the Community Periodontal Index (CPI) and Eichner classification. Multivariable analyses were performed to evaluate the relationships between ED and the remaining teeth number, periodontal disease, and occlusal support status.

RESULTS

The median age was 53 years. Of the 400 men, 333 (83%) were classified into ED group. In univariable analyses, remaining teeth number, CPI score, and Eichner classification were significantly associated with ED. In multivariable analyses, the remaining teeth number (odds ratio [OR]: 0.907, p = 0.114) and CPI score (OR: 0.978, p = 0.864) were not significantly associated with ED, whereas the Eichner classification was independently and significantly associated with ED (OR: 3.490, p = 0.042).

CONCLUSIONS

Poor occlusal support status was significantly associated with ED in community-dwelling men, as opposed to remaining teeth number and periodontal health status.

Exploring representation of underrepresented minority men in a restorative therapy clinical trial for erectile dysfunction: addressing barriers and promoting inclusion

This retrospective descriptive analysis explores underrepresented minority men in our clinical trial for restorative therapy for erectile dysfunction and to identify strategies to promote diversity and inclusion in the study population. Demographic data were collected from all participants and the prevalence in our population was compared to the source population. The proportion of individuals taking part in our clinical trial was compared to the overall disease population using the participation to prevalence ratio. Among the 61 participants enrolled in the Platelet-Rich Plasma for Erectile Dysfunction trial, 72.1% were Hispanic compared to 39.9% in the national source population. There were 27.9% non-Hispanic participants, and 41.2% non-Hispanic men in the local South Florida population. The racial composition of our study shows 80.3% of PRP participants identify as White, 16.4% as Black, and 3.4% as Asian. In the national source population, 61.8% of patients were White, 27.5% are black, and 1.5% are Asian. Through the implementation of strategies such as having Hispanic team members on the clinical trial staff and providing education and outreach materials both in Spanish and English, we were able to overcome barriers to participation in Hispanic men and potentially improve health outcomes for underrepresented minority men with erectile dysfunction.

Coil Embolization Is Not Justified for Treating Patients with Veno-Occlusive Dysfunction: Case Series and Narrative Literature Review

Introduction: Herein, we explore whether coil embolization (CE) is effective in treating veno-occlusive dysfunction (VOD). We present five cases with seven CE episodes and a narrative literature review. Methods: From 2013 to 2018, refractory impotence prompted five men to seek penile vascular stripping (PVS), although seven CE episodes were included. All received dual cavernosography in which erection-related veins and VOD were documented. PVS entailed the venous stripping of one deep dorsal vein and two cavernosal veins. The abridged five-item version of the International Index of Erectile Function (IIEF-5) score system and the erection hardness scale (EHS) were used, and yearly postoperative follow-ups were conducted via the Internet. Using Pub Med, a narrative literature review was performed on CE treatment for VOD or varicocele. Results: Inserted coils were scattered along the erection-related veins, including the deep dorsal veins (n = 4), periprostatic plexus (n = 5), iliac vein (n = 5), right pulmonary artery (n = 2), left pulmonary artery (n = 2), and right ventricle (n = 1). PVS resulted in some improvements in the IIEF-5 score and EHS scale. Six articles highly recommend CE treatment for VOD. All claimed it is a minimally invasive effective treatment for varicocele. Conclusions: CE is not justified as a VOD treatment, regardless of its viability in the treatment of varicocele.

Use of thermographic imaging for the evaluation of erectile dysfunction and Peyronie's disease

Thermographic imaging is a technique to measure infrared radiation to report temperature and has been used in prior research to assess sexual arousal by measuring genital temperature. We hypothesized this can be used quantitatively to assess erectile function. We conducted an observational clinical trial of this technique by performing thermographic imaging in the flaccid and erect state and compared these values with hemodynamic measurements performed by penile Doppler/duplex ultrasound (PDDU). We also hypothesized that in men with Peyronie's disease (PD), the plaque would be visible on thermographic imaging and took thermographic measurements in this area for patients with PD. Any man scheduled to undergo PDDU in our urology clinic was approached for recruitment. PDDU was performed by one of two experienced urologists. We recruited 30 men for this study. Seven of these men had PD. The change in measured temperature between flaccid and erect states correlated significantly with the peak systolic velocity r = 0.46 (p = 0.025). In the seven men with PD the mean change in temperature of the plaque was +0.9 °C versus +2.1 °C in the normal penis (p = 0.28). Thermographic imaging shows a significant correlation with objective hemodynamic measurements on PDDU.

Carvacrol prevents D-( +)-galactose-induced aging-associated erectile dysfunction by improving endothelial dysfunction and oxidative stress in rats

Aging is one of the risk factors involved in the development of erectile dysfunction (ED). Growing evidence suggests that oxidative stress is the critical mediator of changes in endothelial function and penile vascular tone in the aging process. Thus, reducing reactive oxygen species (ROS) levels may preserve the bioactivity of the penile vasculature. Antioxidant compounds, such as carvacrol, limit the damage caused by ROS and, therefore, benefit the treatment of ED. Thus, this study aims to evaluate the effects of carvacrol on ED using the D-( +)-galactose aging model. The animals were divided into five groups: control, D-( +)-galactose 150 mg/kg, carvacrol 50 mg/kg or 100 mg/kg, and sildenafil 1.5 mg/kg treated daily for 8 weeks. The physiological, functional, and morphological characteristics of aging-associated ED were evaluated after treatment with carvacrol. Carvacrol prevented ED in a D-( +)-galactose-induced aging model by reducing hypercontractility, enhancing endothelial dysfunction in the rat corpus cavernosum, and improving endothelial health of rat cavernous endothelial cells. In addition, carvacrol prevented the destruction of erectile components essential for penile erection and promoted a reduction of penile tissue senescence, probably through mechanisms that involve the harmful modulation of oxidative stress. Carvacrol significantly improved the erectile function of rats in a D-( +)-galactose-induced aging model and has excellent potential as a new therapeutic alternative in treating erectile dysfunction.

The effect of sustainable low-dose sildenafil and cognitive-behavioral training on sexual function in methadone-treated men-a randomized controlled trial

BACKGROUND

Sexual dysfunction caused by opioids is one of the serious problems of drug misusers.

OBJECTIVE

This study aimed to evaluate and compare the effect of continuous low-dose sildenafil treatment alongside psychological training on the sexual function of methadone-treated patients.

METHOD

This randomized clinical trial was conducted on methadone-treated men with sexual dysfunction. Patients were randomly divided into two treatment groups: sildenafil 25 mg and psychological training. Sexual Quality of Life-Men, Sexual Self-Efficacy Scale-Erectile, and the International Index of Erectile Function were used before and 4 weeks after the end of the intervention.

RESULTS

A total of 67 couples were included in the study (34 psychological interventions vs. 33 sildenafil group). After 4 weeks of treatment, the mean of male erectile function (33.73 ± 8.114 and 27.62 ± 6.238, p = 0.003) and sexual self-efficacy score (78.36 ± 12.713 and 69.62 ± 14.940, p < 0.0001) in the sildenafil group were statistically significant compared to the psychological group, however, the sexual quality score of the two groups was not statistically significant (31.48 ± 9.216 and 31.71 ± 11.333, p = 0.342).

CONCLUSIONS

The sexual function of methadone-treated men in both groups was significantly improved, yet this difference was significantly greater in the pharmaceutical treatment group than the trainings. As a result, due to the high need for treatment, any type of intervention (medication or psychotherapy) will be effective in these patients.

Variability in Methodology of Erectile Dysfunction Regenerative Therapy Trials on ClinicalTrials.gov

OBJECTIVE

To evaluate the variability in the criteria of erectile dysfunction (ED) regenerative therapy trials registered on ClinicalTrials.gov.

METHODS

Interventional trials on ClinicalTrials.gov with the keywords "erectile dysfunction" and variations of "shockwave," "platelet rich plasma," "stem cell," "regenerative," and "restorative" were examined. Inclusion/exclusion criteria and primary/secondary outcomes were compared between extracorporeal shockwave therapy (ESWT), platelet rich plasma and stem cell injections (PRP/SC), and other regenerative therapies (ORT) groups.

RESULTS

Of the 92 trials analyzed, International Index of Erectile Function (IIEF) score was the most common primary outcome (72%), with a higher prevalence in ESWT trials than PRP/SC or ORT trials (89% vs 44% and 58%, P <.001). Safety/tolerability was a primary outcome for 44% of PRP/SC trials and 25% of ORT trials but no ESWT trials (P <.001). ESWT trials more frequently had sexual/romantic relationship-based inclusion criteria and cancer treatment-related exclusion criteria than PRP/SC and ORT trials.

CONCLUSION

There is substantial variability in the inclusion/exclusion criteria and outcome measures among ED regenerative therapy trials. ESWT trials most frequently utilized IIEF and had the strictest inclusion/exclusion criteria, suggesting more rigorous and functional outcome-based studies. Conversely, PRP/SC and ORT trials, but not ESWT trials, had safety/tolerability as a primary outcome, likely due to the experimental nature of these therapies. The variability in inclusion/exclusion criteria and outcome measures limits comparison of the various ED regenerative therapies.

Updating, correcting, and calibrating the narrative about premature ejaculation

INTRODUCTION

The narrative surrounding premature ejaculation (PE) has developed and solidified over the past 25 years. Unfortunately, portions of that narrative are outdated and do not reflect more recent conceptualizations or empirical findings regarding this disorder.

OBJECTIVE

In this review we sought to identify existing narratives about PE in need of updating and to provide revised narratives based on the recent research literature.

METHOD

Five PE narratives in need of revision were identified, including: the prevalence of PE, age-related differences in PE prevalence, a validated ejaculation latency (EL) for diagnosing PE, differences between lifelong and acquired PE subtypes, and the application of PE definitions beyond penile-vaginal intercourse. Extensive literature searches provided information supporting both the original narrative and the need for a revised narrative based on both consideration of more recent studies and reinterpretation of studies conducted since the establishment of the original narratives.

RESULTS

For each selected topic, the prevailing narrative based on the extant literature was first presented, followed by discussion of accumulating evidence that challenges the existing narrative. Each section ends with a suggested revised PE narrative. In 2 instances, the revised narrative required significant corrections (eg, PE prevalence, validated EL for diagnosing PE); in 2 instances, it expanded on the existing narrative (eg, PE subtype differences, inclusion of partnered sexual activities beyond penile-vaginal intercourse); and in 2 other instances, it backed off prior conclusions that have since required rethinking (eg, age-related changes in PE, PE subtype differences). Finally, a brief review of the 3-pronged criteria for PE (EL, ejaculatory control, and bother/distress) is presented and discussed.

CONCLUSION

This review reiterates the dynamic state of research on PE and demonstrates the need for and value of ongoing research that not only addresses new issues surrounding this dysfunction but also challenges and revises some of the existing narratives about PE.

Single-cell transcriptome analysis of cavernous tissues reveals the key roles of pericytes in diabetic erectile dysfunction

Erectile dysfunction (ED) affects a significant proportion of men aged 40-70 and is caused by cavernous tissue dysfunction. Presently, the most common treatment for ED is phosphodiesterase 5 inhibitors; however, this is less effective in patients with severe vascular disease such as diabetic ED. Therefore, there is a need for development of new treatment, which requires a better understanding of the cavernous microenvironment and cell-cell communications under diabetic condition. Pericytes are vital in penile erection; however, their dysfunction due to diabetes remains unclear. In this study, we performed single-cell RNA sequencing to understand the cellular landscape of cavernous tissues and cell type-specific transcriptional changes in diabetic ED. We found a decreased expression of genes associated with collagen or extracellular matrix organization and angiogenesis in diabetic fibroblasts, chondrocytes, myofibroblasts, valve-related lymphatic endothelial cells, and pericytes. Moreover, the newly identified pericyte-specific marker, Limb Bud-Heart (Lbh), in mouse and human cavernous tissues, clearly distinguishing pericytes from smooth muscle cells. Cell-cell interaction analysis revealed that pericytes are involved in angiogenesis, adhesion, and migration by communicating with other cell types in the corpus cavernosum; however, these interactions were highly reduced under diabetic conditions. Lbh expression is low in diabetic pericytes, and overexpression of LBH prevents erectile function by regulating neurovascular regeneration. Furthermore, the LBH-interacting proteins (Crystallin Alpha B and Vimentin) were identified in mouse cavernous pericytes through LC-MS/MS analysis, indicating that their interactions were critical for maintaining pericyte function. Thus, our study reveals novel targets and insights into the pathogenesis of ED in patients with diabetes.

App-based Therapy of Erectile Dysfunction Using a Digital Health Application (EDDIG Study): A Randomized, Single-blind, Controlled Trial

BACKGROUND AND OBJECTIVE

While international guidelines advocate for a multifaceted approach to treating erectile dysfunction (ED) involving physical activities, psychological support, and education, structured programs are infrequent. To address this gap, an app-based therapy was developed, offering a systematic approach. This randomized, single-blind controlled trial aimed to assess the effectiveness of an app-based therapeutic in improving ED.

METHODS

A total of 241 patients (49.74, standard deviation 12.73 yr) with ED (International Index of Erectile Function [IIEF]-5 <22) were randomized to the 12-wk app-based therapy (treatment group [TG], n = 122) or a waiting list for the app with continuation of their current management protocol (control group [CG], n = 119). Patients on long-term medication for ED were included, but subsequent exclusion occurred for those starting new medication. Coprimary endpoints were improvements from baseline to 12 wk in erectile function (IIEF-5), disease-related quality of life (QOL-Med-15), and patient activation (Patient Activation Measure [PAM-13]).

KEY FINDINGS AND LIMITATIONS

Erectile function (IIEF-5) improved by 4.5 points in the TG versus 0.2 points in the CG (p < 0.0001, 95% confidence interval [CI] 3.4-5.0) group. Quality of life (QOL-Med) improved by 20.5 points in the TG versus -0.0 points in the CG (p < 0.0001, 95% CI 19.2-26.0) group. Patient activation (PAM-13) improved by 11.2 points in the TG versus 0.6 points in the CG (p < 0.0001, 95% CI 9.1-13.6) group. Phosphodiesterase type 5 inhibitor intake had no influence on all observed treatment effects.

CONCLUSIONS AND CLINICAL IMPLICATIONS

App-based therapy of patients with ED provided a significant, clinically meaningful improvement. Quality of life and patient activation were also enhanced significantly. This program has the potential to change clinical practice in the treatment of ED.

PATIENT SUMMARY

A therapy app improved sexual function and overall well-being for men experiencing erectile dysfunction, leading to better quality of life.

The impact of cannabis use on erectile dysfunction and sex hormones: a Mendelian randomization analysis

Previous study has highlighted an association between cannabis use (CU) and an increased risk of erectile dysfunction (ED), potentially due to indirect effects on sex hormonal balance. However, the evidence remains controversial, and the causal relationship is unclear. This study utilized genome-wide association study (GWAS) data to investigate the causal relationships between cannabis use disorder (CUD), lifetime cannabis use (LCU), and ED, as well as levels of sex hormones including estradiol (E2), bioavailable testosterone (BT), follicle-stimulating hormone (FSH), and luteinizing hormone (LH) through Mendelian randomization (MR) analysis. The primary method of analysis was the inverse variance weighted (IVW) method. Data from the FinnGen and UK Biobank were used for replication and meta-analysis. The results indicated no causal relationship between genetically predicted CUD (OR = 0.97, 95% CI 0.87-1.10, P = 0.66) and LCU (OR = 1.13, 95% CI 0.84-1.50, P = 0.42) with the risk of ED. The meta-analysis provided consistent evidence (P > 0.05). No causal relationships were found between CUD and LCU with E2(CUD: β = 0.00, 95% CI 0.00-0.01, P = 0.37; LCU: β = 0.00, 95% CI -0.02-0.01, P = 0.62), BT (CUD: β = 0.00, 95% CI -0.03-0.02, P = 0.90; LCU: β = 0.02, 95% CI -0.04-0.09, P = 0.46), FSH (CUD: β = 0.01, 95% CI -0.18-0.20, P = 0.92; LCU: β = 0.01, 95% CI -0.44-0.47, P = 0.95), and LH (CUD: β = 0.01, 95% CI -0.18-0.21, P = 0.90; LCU: β = 0.13, 95% CI -0.22-0.49, P = 0.46). Sensitivity analyses detected no evidence of horizontal pleiotropy or heterogeneity, ensuring the robustness of the results. In conclusion, this MR analysis did not provide evidence supporting a causal relationship between CU and ED or sex hormone levels.

Inflammatory proteins mediate male erectile dysfunction via plasma metabolites

Background

There are no clear conclusions as to whether inflammatory proteins and plasma metabolites influence erectile dysfunction (ED).

Aim

In this research, we used Mendelian randomization (MR) analysis to discover a causal relationship between inflammatory proteins, plasma metabolites, and ED.

Methods

Raw data with ED, inflammatory proteins, and plasma metabolites were obtained from the MRC IEU OpenGWAS and FinnGen database. After a series of screenings, the remaining single nucleotide polymorphisms were selected as instrumental variables or MR analysis to assess the relationship between genetically predicted inflammatory proteins or plasma metabolites and the pathogenesis of ED.

Outcomes

The relationship between inflammatory factors and ED was fully analyzed and elaborated.

Results

In the inverse variance-weighted method, there exists a significant causal relationship between 4 types of genetically predicted inflammatory proteins and 50 types of plasma metabolites with the incidence of ED. The primary discovery is that 3 inflammatory proteins, fibroblast growth factor 5, interleukin-22 receptor subunit alpha-1, and protein S100-A12, can impact the risk of ED through plasma metabolites.

Clinical Implications

ED metabolites and inflammatory proteins are also closely associated with cardiovascular diseases, warranting further exploration.

Strengths and Limitations

Our analysis is based on a European population, limiting its generalizability, the genome-wide association study dataset for ED has a relatively small number of cases, and we hope for larger genome-wide association study datasets for future validation.

Conclusion

This study has identified that inflammatory proteins can influence ED through plasma metabolites.

Indirect assessment of low-intensity shockwave therapy's energy density and pulse frequency for erectile dysfunction: a systematic review, bayesian network meta-analysis and meta-regression

Shockwaves are thought to activate regenerative and angiogenic pathways, providing a possible therapeutic benefit for patients with erectile dysfunction. This study aimed to analyze the effectiveness of low-intensity extracorporeal shockwave therapy energy density and pulse frequency. In May 2022, a systematic search of online databases was performed to identify randomized clinical trials related to low-intensity extracorporeal shockwave therapy in erectile dysfunction. Eligible articles compared low-intensity extracorporeal shockwave therapy to controls or sham procedures. A Bayesian framework with 200,000 Markov chains was performed. We included a total of 1272 patients from 18 studies. The energy flux density measured in joules included 0.09 mJ/mm2 (mean difference 3.2 IIEF [95% CrI 2.8, 3.6]), 0.15 mJ/mm2 (mean difference 4.9 IIEF [95% CrI 2.8, 7.2]) and 0.20 mJ/mm2 (mean difference 1.2 IIEF [95% CrI 0.11, 2.3]). Of these, 0.15 mJ/mm2 had the greatest ranking (SUCRA = 0.983) compared with placebo. When analyzed by pulse frequency, significant increases were found in 500 pulses/session (mean difference 2.5 IIEF [CrI 1.9, 3.2]), 1500 pulses/session (mean difference 4.6 IIEF [95% CrI 3.9, 5.4]) and > 3000 pulses/session (mean difference 3.1 IIEF [95% CrI 2.1, 4.2]). Of these, 1500 pulses/session had the highest SUCRA, at 0.996. Our network meta-analysis suggests that low-intensity extracorporeal shockwave therapy is an effective intervention for erectile dysfunction, as measured by increases in the IIEF-EF. Sessions featuring 1500 pulses and an energy flux density of 0.15 mJ/mm2 appear to be the most effective.

Concentrations of Bioelements (Zn, Cu, Fe, Cr, Mg, Mn) in Serum and Bone Tissue of Aging Men Undergoing Hip Arthroplasty: Implications for Erectile Dysfunction

Background: Erectile dysfunction (ED) stands out as one of the most prevalent sexual disorders in men, with its incidence progressively escalating with age. As delineated by the International Consultation Committee for Sexual Medicine on Definitions/Epidemiology/Risk Factors for Sexual Dysfunction, the prevalence of ED among men under 40 years is estimated to be within the range of 1-10%. The aim of this study was to determine the relationship between the concentration of bioelements (Zn, Cu, Fe, Cr, Mg, and Mn) in the serum and bone tissue and the concentration of selected hormones in men with and without erectile dysfunction. Materials and methods: The retrospective cohort study included 152 men who underwent total hip arthroplasty for hip osteoarthritis at the Department of Orthopaedic Traumatology and Musculoskeletal Oncology at the Pomeranian Medical University in Szczecin. Certain exclusion criteria were applied to ensure the integrity of the study. These included individuals with diabetes, a history of cancer, alcohol abuse, liver or kidney failure, New York Heart Association (NYHA) class III or IV heart failure, and those taking medications that affect bone metabolism, such as mineral supplements, neuroleptics, chemotherapeutic agents, immunosuppressants, corticosteroids, or antidepressants. Patients with hypogonadism or infertility were excluded from the study. Results: The study showed an association between bioT concentrations and Cu concentrations in both patients with and without erectile dysfunction. A correlation between bioactive testosterone and Cr concentrations was also observed in both groups. Patients with erectile dysfunction showed a relationship between bioT concentration and Zn concentration, TT concentration and Mn concentration, FT concentration and Zn concentration, and E2 concentration and Cr concentration. An analysis of elemental concentrations in bone tissue showed an association between FT and Mg and Mn concentrations, but only in patients with erectile dysfunction. In patients without erectile dysfunction, a correlation was observed between FT and Cu concentrations. A correlation was also observed between bioT concentrations and Mg, Mn, and Zn concentrations, but only in patients with erectile dysfunction. In patients without erectile dysfunction, a correlation was observed between bioT and Cu concentrations. Conclusions: Studying the relationship between the concentration of bioelements (Zn, Cu, Fe, Cr, Mg, and Mn) in the serum and bone tissue and the concentration of selected hormones in men may be important in explaining the etiology of the problem. The study of the concentration of Zn and Cu in bone tissue and serum showed that these two elements, regardless of the place of accumulation, may be related to the concentration of androgens in men.

Association between air pollution and male sexual function: A nationwide observational study in China

This study aimed to explore the associations between air pollution and male sexual function. A total of 5047 male subjects in China were included in this study. The average air pollution exposure (PM2.5, PM10, SO2, CO, NO2, and O3) for the preceding 1, 3, 6, and 12 months before the participants' response was assessed. Male sexual function was evaluated using the International Index of Erectile Function-5 (IIEF-5) and the Premature Ejaculation Diagnostic Tool (PEDT). Generalized linear models were utilized to explore the associations between air pollution and male sexual function. K-prototype algorithm was conducted to identify the association among specific populations. Significant adverse effects on the IIEF-5 score were observed with NO2 exposure during the preceding 1, 3, and 6 months (1 m: β = -5.26E-05; 3 m: β = -4.83E-05; 6 m: β = -4.23E-05, P < 0.05). PM2.5 exposure during the preceding 12 months was found to significantly negatively affect the PEDT after adjusting for confounding variables. Our research indicated negative correlations between air pollutant exposures and male sexual function for the first time. Furthermore, these associations were more pronounced among specific participants who maintain a normal BMI, exhibit extroverted traits, and currently engage in smoking and alcohol consumption.

Development and evaluation of sildenafil/glycyrrhizin-loaded nanofibers as a potential novel buccal delivery system for erectile dysfunction

Erectile dysfunction (ED) is a growing health condition that needs safe and effective therapy. One of the main common treatments is sildenafil which is used in clinics for managing erectile dysfunction by enhancing the blood supply to the penis. In the current study, sildenafil was formulated as nanofibers and mixed with the root extract of Glycyrrhiza glabra (glycyrrhizin) as a natural sweetener to be administrated in the buccal cavity for enhanced drug bioavailability, rapid drug absorption and improved patient compliance. The formulated dual-loaded nanofibers were evaluated by measuring diameter, disintegration, drug loading efficiency, drug release profile, and in vitro cell viability assessment. The results showed that the sildenafil/glycyrrhizin-loaded fibers had a diameter of 0.719 ± 0.177 μm and lacked any beads and pores formation on their surfaces. The drug loading and encapsulation efficiency for sildenafil were measured as 52 ± 7 µg/mg and 67 ± 9 %, respectively, while they were 290 ± 32 μg/mg and 94 ± 10 %, respectively, for glycyrrhizin. The release rate of sildenafil and glycyrrhizin demonstrated a burst release in the first minute, followed by a gradual increment until a complete release after 120 min. The in vitro cell viability evaluation exhibited that the application of sildenafil and glycyrrhizin is safe upon 24-hour treatment on human skin fibroblast cells at all used concentrations (i.e., ≤ 1,000 and 4,000 μg/mL, respectively). However, the application of sildenafil-glycyrrhizin combination (in a ratio of 1:4) demonstrated more than 80 % cell viability at concentrations of ≤ 250 and 1000 μg/mL, respectively, following 24-hour cell exposure. Therefore, sildenafil/glycyrrhizin dual-loaded PVP nanofibers showed a potential buccal therapeutic approach for erectile dysfunction management.

High prevalence of erectile dysfunction in men with hyperthyroidism: a meta-analysis

OBJECTIVE

The objective of this study was to evaluate the association between hyperthyroidism and the risk of developing erectile dysfunction (ED).

METHODS

A comprehensive search of multiple databases, including PubMed, Embase, Cochrane, and Web of Science, was conducted to identify relevant studies investigating the relationship between hyperthyroidism and ED in men. The quality of the included studies was assessed using the Newcastle‒Ottawa Quality Rating Scale, and a meta-analysis was performed using Stata 16.0 and RevMan 5.3 software.

RESULTS

A total of four papers encompassing 25,519 study subjects were included in the analysis. Among these, 6,429 individuals had hyperthyroidism, while 19,090 served as controls. The overall prevalence of ED in patients with hyperthyroidism was determined to be 31.1% (95% CI 0.06-0.56). In patients with uncomplicated hyperthyroidism, the incidence of ED was 21.9% (95% CI 0.05-0.38). The combined odds ratio (OR) for the four studies was 1.73 (OR: 1.73; 95% CI [1.46-2.04]; p < .00001).

CONCLUSION

Our findings demonstrate a higher incidence of ED in patients with hyperthyroidism. These results provide valuable information for healthcare professionals and can facilitate discussions surrounding appropriate treatment options for ED in patients with hyperthyroidism.

Erectile Dysfunction as an Obesity-Related Condition in Elderly Men with Coronary Artery Disease

Background: This cross-sectional study aimed to investigate the prevalence of erectile dysfunction (ED) in elderly men with overweight or obesity and coronary artery disease. Methods: Patients recruited in cardiac rehabilitation centers post-myocardial infarction provided demographic and anthropomorphic data. ED was assessed using the abbreviated International Index of Erectile Function 5 (IIEF-5) Questionnaire. Results: The study included 661 men with a mean age of 67.3 ± 5.57 years, a mean BMI of 27.9 ± 3.6 m/kg2, and a mean waist circumference of 98.9 ± 10.23 cm. Over 90% of men experienced ED, with similar proportions across BMI categories. The development of ED in men with a waist circumference of ≥100 cm had 3.74 times higher odds (OR 3.74; 95% CI: 1.0-13.7; p = 0.04) than in men with a waist circumference of <100 cm. Men with obesity and moderate-to-severe and severe ED were older compared to those without these disorders (67.1 ± 5.29 vs. 65.3 ± 4.35; p = 0.23). Conclusions: The prevalence of ED in men with coronary artery disease surpasses 90%. An increased body weight raises the risk of ED, with waist circumference proving to be a more reliable predictor of this risk compared to BMI. Physicians are encouraged to screen elderly patients with cardiovascular disease for ED and address obesity to enhance overall health.

Estrogenic endocrine disruptor exposure directly impacts erectile function

Erectile dysfunction (ED) is an extremely prevalent condition which significantly impacts quality of life. The rapid increase of ED in recent decades suggests the existence of unidentified environmental risk factors contributing to this condition. Endocrine Disrupting Chemicals (EDCs) are one likely candidate, given that development and function of the erectile tissues are hormonally dependent. We use the estrogenic-EDC diethylstilbestrol (DES) to model how widespread estrogenic-EDC exposure may impact erectile function in humans. Here we show that male mice chronically exposed to DES exhibit abnormal contractility of the erectile tissue, indicative of ED. The treatment did not affect systemic testosterone production yet significantly increased estrogen receptor α (Esr1) expression in the primary erectile tissue, suggesting EDCs directly impact erectile function. In response, we isolated the erectile tissue from mice and briefly incubated them with the estrogenic-EDCs DES or genistein (a phytoestrogen). These acute-direct exposures similarly caused a significant reduction in erectile tissue contractility, again indicative of ED. Overall, these findings demonstrate a direct link between estrogenic EDCs and erectile dysfunction and show that both chronic and acute estrogenic exposures are likely risk factors for this condition.

Etiology of Male Infertility: an Update

Spermatogenesis is a complex process of germ cell division and differentiation that involves extensive cross-talk between the developing germ cells and the somatic testicular cells. Defective endocrine signaling and/or intrinsic defects within the testes can adversely affect spermatogenic progression, leading to subfertility/infertility. In recent years, male infertility has been recognized as a global public health concern, and research over the last few decades has elucidated the complex etiology of male infertility. Congenital reproductive abnormalities, genetic mutations, and endocrine/metabolic dysfunction have been demonstrated to be involved in infertility/subfertility in males. Furthermore, acquired factors like exposure to environmental toxicants and lifestyle-related disorders such as illicit use of psychoactive drugs have been shown to adversely affect spermatogenesis. Despite the large body of available scientific literature on the etiology of male infertility, a substantial proportion of infertility cases are idiopathic in nature, with no known cause. The inability to treat such idiopathic cases stems from poor knowledge about the complex regulation of spermatogenesis. Emerging scientific evidence indicates that defective functioning of testicular Sertoli cells (Sc) may be an underlying cause of infertility/subfertility in males. Sc plays an indispensable role in regulating spermatogenesis, and impaired functional maturation of Sc has been shown to affect fertility in animal models as well as humans, suggesting abnormal Sc as a potential underlying cause of reproductive insufficiency/failure in such cases of unexplained infertility. This review summarizes the major causes of infertility/subfertility in males, with an emphasis on infertility due to dysregulated Sc function.

Erectile dysfunction prevalence in the United States: report from the 2021 National Survey of Sexual Wellbeing

BACKGROUND

There has been a great deal of public speculation regarding a surge in erectile dysfunction (ED) in younger men despite data consistently indicating that the ED prevalence rates increase with age.

AIM

In this study we sought to assess the prevalence and risk of experiencing ED in a nationally representative sample of men in the United States across various social groups, describe comorbidities, and examine barriers to treatment.

METHODS

Data from the 2021 National Survey of Sexual Wellbeing were analyzed by utilizing the Ipsos KnowledgePanel®, a probability-based online panel, for the purpose of obtaining US nationally representative data of adults aged 18 years and older. The analytic sample consisted of 1822 cisgender men ranging in age from 18 to 87 years, with a mean age of 47.5 years.

OUTCOMES

Study outcomes were ED as measured by the 5-item version of the International Index of Erectile Function (IIEF-5), as well as self-reported diagnosis by a medical professional, comorbidities with other health issues, medications taken for ED, and barriers to treatment.

RESULTS

The ED prevalence rate based on IIEF-5 scores was 24.2%. Prevalence increased with age: 52.2% of the 75+ age group, and 48.0% of the 65-74 age group meeting diagnostic criteria for ED. Diagnostic criteria were met for more participants in the 18-24 age group (17.9%) than the 25-34 (13.3%) or 35-44 (12.7%) age groups, but less than the 45-54 (25.3%) or 55-64 (33.9%) age groups. Only 7.7% (n = 141) of the sample reported having been diagnosed by a provider (n = 4 in 25-34, n = 6 in 35-44, n = 13 in 45-54, n = 39 in 55-64, n = 44 in 65-74, and n = 34 in ≥75-year olds), indicating a gap in access to treatment. The most common reason selected for not accessing care for ED concerns was a lack of need to see a provider in the past year.

CLINICAL IMPLICATIONS

The discrepancy between ED self-report and medical diagnosis is critical, given that ED can be an indication of underlying health risks.

STRENGTHS AND LIMITATIONS

This study is the first nationally representative update to information regarding the prevalence of ED in almost 2 decades. Standard administration of the IIEF-5 is limited to participants who have had sex in the last 6 months, so these rates do not include those men with ED who have been avoiding penetrative sex for a significant time.

CONCLUSION

The results indicate that ED prevalence and severity remain highest in older age groups and that most individuals who meet criteria for ED have not sought medical care related to this concern.

The pathogenic role of the immune system in erectile dysfunction and Peyronie's disease: focusing on immunopathophysiology and potential therapeutic strategies

INTRODUCTION

Erectile dysfunction (ED) represents the major cause of male sexual dysfunction, which is often associated with obesity, diabetes mellitus, atherosclerotic cardiovascular disease, and cigarette smoking. Peyronie's disease is a chronic disorder associated with irreversible fibrotic damage of the tunica albuginea leading to ED, painful erection, coital disturbance, and physical and social complaints. Both conditions are characterized by chronic inflammation, oxidative stress, and significant changes in intracavernous hydrodynamics. In this scenario, oxidized lipoproteins, M1-polarized macrophages, proinflammatory cytokines (such as the tumor necrosis factor α), endothelial nitric oxide synthase, penile smooth muscle cells, and toll-like receptors represent the main triggers of the inflammatory process in ED. Phosphodiesterase-5 inhibitors are the most common treatment for ED. This treatment is used intermittently, as it is conceived as a symptomatic and not curative therapy. Moreover, not all patients respond to phosphodiesterase-5 inhibitors (35%-85%), particularly those with dysmetabolic phenotypes. Additional or alternative treatments are therefore desirable, mostly in refractory cases.

OBJECTIVES

In this review, we describe the immune-mediated pathogenesis of ED and Peyronie's disease (PD). In our literature search we placed particular emphasis on potentially practical therapeutic approaches, including natural products (such as polyphenols), due to their anti-inflammatory and antioxidant activities, stem cell therapy, and platelet-derived preparations.

METHODS

We searched PubMed/MEDLINE, Web of Science, Scopus, Cochrane Library, Google Scholar, and institutional websites. Original studies, narrative reviews, systematic reviews, and meta-analyses written in English were searched, screened, and selected.

RESULTS

In animal models of ED and PD, therapeutic approaches, including anti-inflammatory and antioxidant agents, stem cell therapy, and platelet-derived preparations, have provided positive results, including improved penile function, reduced inflammation and oxidative stress, and promotion of tissue repair. However, clinical evidence of improvement in human patients is still insufficient.

CONCLUSION

Promising results for treating ED and PD have been shown in preclinical and pilot clinical studies, but specific clinical trials are needed to validate the efficacy of these therapeutic approaches in men with ED.

Association of sildenafil use with age-related macular degeneration: a retrospective cohort study

OBJECTIVE

Despite significant advances in clinical care and understanding of the underlying pathophysiology, age-related macular degeneration (AMD)-a major cause of global blindness-lacks effective treatment to prevent the irreversible degeneration of photoreceptors leading to central vision loss. Limited studies suggest phosphodiesterase type 5 (PDE5) inhibitors, such as sildenafil, may prevent AMD by increasing retinal blood flow. This study explores the potential association between sildenafil use and AMD risk in men with erectile dysfunction using UK data.

METHODS AND ANALYSIS

Using the UK's IQVIA Medical Research Data, the study analysed 31 575 men prescribed sildenafil for erectile dysfunction and no AMD history from 2007 to 2015, matched with a comparator group of 62 155 non-sildenafil users in a 1:2 ratio, over a median follow-up of approximately three years.

RESULTS

The primary outcome was the incidence of AMD in the two groups. The study found no significant difference in AMD incidence between the sildenafil users and the non-users, with an adjusted hazard ratio (HR) of 0.99 (95% CI 0.84 to 1.16), after accounting for confounders such as age, ethnicity, Townsend deprivation quintile, body mass index category, and diagnosis of hypertension and type 2 diabetes.

CONCLUSION

The study results indicated no significant association between sildenafil use and AMD prevention in UK men with erectile dysfunction, suggesting sildenafil's protective effect on AMD is likely insignificant.

Prospective Patient Preferences for Humor in Urologists Treating Erectile Dysfunction: A Survey Study

INTRODUCTION

Men seeking treatment for sexual dysfunction can experience embarrassment as a result of stigma. This research manuscript presents the findings of a survey conducted to investigate the influence of humor on prospective patients' preferences when selecting a specialist to address erectile dysfunction (ED).

METHODS

The respondents were presented with five pairs of mock urology business cards: one professional and one humorous. A questionnaire was designed and distributed via an online survey platform. Descriptive statistics and Fisher's exact test were performed using the Statistical Package for Social Sciences (SPSS) software version 29 (IBM SPSS Statistics, Armonk, NY) to evaluate age and race associations with card preference.

RESULTS

Among the 997 participants, an average of 66.1% (a median of 71.2%) preferred professional cards. Humorous card selection rates ranged from 5.2% to 38.4% compared to 54.0% to 78.1% for professional cards. A statistically significant relationship between age and professional card choice existed in all except the fifth set of cards (p = 0.001, 0.001, 0.001, 0.001, and 0.054). The relationship between race or ethnicity and business card preference was not reported due to an imbalance in demographics, with most participants identifying as Caucasian.

DISCUSSION

A humor-centric approach may not resonate with all individuals seeking treatment for sensitive conditions such as ED. Limitations include the subjectivity of humor, the use of an online survey platform, and the hypothetical nature of this study. Real patients experiencing ED may face stigma and respond to humor differently.

CONCLUSION

This study provides insights into patient preference for professionalism over humor from their urologist but leaves room for the exploration of humor in medical contexts. Future studies could examine the impacts of humor on patient choices in real-world healthcare settings.

Sub-gluteal ligation of the internal pudendal vein for management of veno-occlusive erectile dysfunction (Shaeer's Vein Ligation-I): the cadaveric study

Vein ligation for veno-occlusive erectile dysfunction is being abandoned due to the recurrence rate. Among the reasons for failure is inability to ligate the deep system of veins; the internal pudendal vein. The vein exits the pelvis in the gluteal region, from the lesser sciatic foramen to the greater sciatic foramen, coursing over the ischial spine and sacro-spinous ligament, under the gluteus maximus. This work aims to verify feasibility of the first surgical procedure to ligate the internal pudendal vein through the gluteal approach. This cadaveric study involved five formalin-fixed cadavers. A surface anatomical landmark was designed to identify the ischial spine, at the intersection of two lines: a vertical line from posterior superior iliac spine to ischial tuberosity, and a horizontal line extending from sacro-coccygeal joint, laterally. An incision is cut encompassing the target point. Subcutaneous fat is dissected down to the gluteus maximus, which is split along the direction of its fibers. The vein can be found crossing over the ischial spine. "Shaeer's Vein Ligation - I" appears to be surgically feasible. A protocol for a surgical study is registered at clinicaltrials.gov, and is open for participation.

A real-world pilot study assessing treatment satisfaction with avanafil in patients with erectile dysfunction

Background

Avanafil is a second-generation phosphodiesterase type 5 (PDE5) inhibitor, and offers a rapid onset of action (15 minutes). Its real-world data, including treatment satisfaction, are still lacking.

Aim

The study sought to investigate the treatment outcomes of avanafil and the factors impacting treatment satisfaction in a real-world setting.

Methods

Between November 2021 and February 2023, erectile dysfunction (ED) patients prescribed avanafil were consecutively enrolled in this phase 4, open-label, cross-sectional, observational study. At each follow-up visit (4-week intervals), participants completed a questionnaire for assessing the use and treatment-emergent adverse events of avanafil, ED severity, and treatment satisfaction.

Outcomes

The outcome measures included the Sexual Health Inventory for Men (SHIM), and Erectile Dysfunction Inventory of Treatment Satisfaction.

Results

Among 234 patients enrolled, 112 (47.9%) patients had follow-up visits and answered the questionnaire. Treatment with avanafil significantly improved the mean SHIM total score from 10.2 ± 5.6 at baseline to 17.5 ± 6.2 (P < .001). Of the patients treated with avanafil, 71.4% (n = 80 of 112) reported a >4-point improvement in the SHIM total score, and 33.1% (n = 37 of 112) reported normal erectile function. The proportion of patients satisfied with avanafil treatment (defined as Erectile Dysfunction Inventory of Treatment Satisfaction index score ≥60) was 87.5%. Several physical factors (younger age, lower waist circumference, and lower level of low-density lipoprotein), and sexual function factors (shorter duration of ED, higher SHIM total score at baseline, PDE5 inhibitor treatment naive, and acquired premature ejaculation) tended to contribute to satisfaction with avanafil treatment. Treatment-emergent adverse events occurred in 41.1% of patients, and all were mild in severity.

Clinical Implications

This study identifies the factors associated with treatment satisfaction of avanafil, which may ultimately lead to better treatment outcomes.

Strengths and Limitations

This is the first study to provide real-world evidence of avanafil for ED treatment, and validated questionnaires were used to assess erectile function and treatment satisfaction. However, the limitations of this study include single-center observational study design, small sample size, and short-term follow-up.

Conclusion

Avanafil is an effective treatment for ED, and satisfaction rate is high in an outpatient setting. The awareness of identified factors related to patient satisfaction may improve treatment outcomes.

Risk of Death in Patients With Coronary Artery Disease Taking Nitrates and Phosphodiesterase-5 Inhibitors

BACKGROUND

Phosphodiesterase-5 inhibitor (PDE5i) treatment for erectile dysfunction is associated with lower mortality compared with no treatment for erectile dysfunction after myocardial infarction (MI). There are conflicting results regarding the impact of PDE5i treatment on mortality in conjunction with nitrate medication.

OBJECTIVES

The purpose of this study was to investigate the association between PDE5i treatment and cardiovascular outcomes in men with stable coronary artery disease treated with nitrate medication.

METHODS

Using the Swedish Patient Register and the Prescribed Drug Register we included men with previous MI or revascularization in 2006-2013 who had 2 dispensed nitrate prescriptions within 6 months. Exposure was defined as at least 2 filled prescriptions of any PDE5i. We performed multivariable Cox proportional hazard regression to estimate HRs with 95% CIs for all-cause, cardiovascular, and noncardiovascular mortality, MI, heart failure, cardiac revascularization, and major cardiovascular events (MACE).

RESULTS

In total, 55,777 men were treated with nitrates and 5,710 men with nitrates and a PDE5i. The combined use of PDE5i treatment with nitrates was associated with higher mortality (HR: 1.39; 95% CI: 1.28-1.51), cardiovascular mortality (HR: 1.34; 95% CI: 1.11-1.62), noncardiovascular mortality (HR: 1.40; 95% CI: 1.27-1.54), MI (HR: 1.72; 95% CI: 1.55-1.90), heart failure (HR: 1.67; 95% CI: 1.48-1.90), cardiac revascularization (HR: 1.95; 95% CI: 1.78-2.13), and MACE (HR: 1.70; 95% CI: 1.58-1.83).

CONCLUSIONS

The use of a PDE5i in combination with nitrate medication in men with stable coronary artery disease may pose an increased hazard for cardiovascular morbidity and mortality. Careful patient-centered consideration before prescribing PDE5is to patients with cardiovascular disease using nitrate medication is warranted.

The traditional use of native Brazilian plants for male sexual dysfunction: Evidence from ethnomedicinal applications, animal models, and possible mechanisms of action

ETHNOPHARMACOLOGICAL RELEVANCE

Sexual dysfunction is a multifactorial health condition characterized by distressing disturbances in the sexual response and libido, leading to an inability to maintain penile erection and achieve pleasure. Considering the huge Brazilian biodiversity, many plants are traditionally used for aphrodisiac purposes. However, the use of native medicinal plants as sexual boosters in Brazil has been poorly studied.

AIM OF THE STUDY

This review focuses on the composition, pharmacology, and results of experimental trials of the main native plants used in Brazilian folk medicine with alleged aphrodisiac effects. We aimed to provide a state-of-the-art reference for research on herbs for the treatment of male sexual dysfunction by summarizing and discussing the main studies found.

MATERIALS AND METHODS

The relevant information was collected by searching keywords (aphrodisiac, sexual tonic, sexual stimulant, sexual vigor stimulant, sexual impotency, erectile dysfunction, etc.) from books containing primary surveys conducted in the original communities and bibliographic surveys prepared by authors linked to the national academic and scientific environment edited in Brazil. Preclinical and clinical studies of the compiled plant species were performed using scientific databases (Scopus, PubMed, SciELO, and SciFinder).

RESULTS

Seventy-four plant species belonging to 44 families used in Brazil to treat sexual dysfunction were compiled from ethnopharmacological literature. Fourteen plants, including Pfaffia glomerata (Spreng.) Pedersen, Aspidosperma quebracho-blanco Schltdl., Anemopaegma arvense (Vell.) Stellfeld ex de Souza, Mimosa pudica L., Heteropterys tomentosa A. Juss., Trichilia catigua A. Juss., and Turnera diffusa Willd. ex Schult. were pharmacologically studied to confirm these therapeutic properties. Probable modes of action include antioxidant and androgenic activities, inhibition of the PDE5 enzyme, increase in NO levels, and activation of dopaminergic and noradrenergic pathways. In addition, several different species popularly known as "catuaba" were identified, leading to adulterations and controversial effects.

CONCLUSION

The overall results of the present review of Brazilian folk literature reveal that Brazil has a long tradition of using plants with potential aphrodisiac effects. However, further research is required to identify, characterize, and standardize the active ingredients and herbal preparations used in aphrodisiacs.

Predicting Anxiety and Depression Among Erectile Dysfunction Patients: A Cross-Sectional Study

In Vietnam, erectile dysfunction (ED) is prevalent and recognized to be associated with mental disorders; however, societal taboos impede a comprehensive understanding of this connection. Our study aims to investigate the factors related to higher levels of anxiety and/or depression (HAD) in individuals with ED. Between November 2022 and March 2023, a face-to-face survey was conducted at the Center for Andrology of Viet Duc University Hospital, involving 390 patients diagnosed with ED. The survey included 51 questions covering general patient information, the International Index of Erectile Function-15 (IIEF-15), the Patient Health Questionnaire-9 (PHQ-9), and the Generalized Anxiety Disorder-7 (GAD-7). The stepwise Akaike Information Criterion (AIC) method was used to identify factors associated with HAD. The study revealed an average age of 37.63 (11.84) years among participants, with a HAD prevalence of 17.69%. Several factors were associated with a higher likelihood of belonging to the HAD group in ED patients. These factors included non-office workers (OR: 1.11; 95% CI: [1.01, 1.21], p = .025), medium and high levels of work-related stress (OR: 1.23; [1.06, 1.44], p = .008; OR: 1.22; [1.04, 1.45], p = .018), multiple shameful experiences related to ED (OR: 1.16; [1.08, 1.25], p < .001), moderate and severe ED (OR: 1.17; [1.03, 1.32], p = .013; OR: 1.31; [1.14, 1.51], p < .001), and dissatisfaction with intercourse skills (OR: 1.09; [1.01, 1.17], p = .028). Our findings suggest a 16% higher likelihood of HAD status in individuals with multiple shameful experiences related to ED, while moderate and severe ED are associated with respective increases of 17% and 31% in the likelihood. These findings emphasize the importance of considering mental health in the care of individuals with ED.

Erectile function and androgen and estrogen beta receptor gene polymorphisms in acromegalic men

PURPOSE

Sexual dysfunctions are often experienced by male patients with acromegaly, due to a combination of hypogonadism and other comorbidities, but are a scarcely investigated complication. Erectile dysfunction is also closely related to cardiovascular diseases through endothelial dysfunction. Therefore, this project aimed to assess the prevalence of erectile dysfunction in a population of acromegalic men and evaluate its association with cardio-metabolic disorders, also exploring associations with androgen and estrogen receptor gene polymorphisms.

METHODS

Sexually active men aged 18-65 with previous diagnosis of acromegaly were recruited. Clinical and laboratory data were retrospectively collected. Each patient also provided a blood sample for AR and ERβ gene polymorphisms analyses and filled out the IIEF-15 questionnaire.

RESULTS

Twenty men with previous diagnosis of acromegaly (mean age 48.4 ± 10.0 years) were recruited. 13/20 subjects (65%) had erectile dysfunction, but only four had a concurrent biochemical hypogonadism, with no significant correlation with IIEF-15 scores. Total testosterone negatively correlated with sexual intercourse satisfaction domain (ρ = - 0.595; p = 0.019) and general satisfaction domain (ρ = - 0.651; p = 0.009). IGF-1 levels negatively correlated with biochemical hypogonadism (ρ = - 0.585; p = 0.028). The number of CAG and CA repeats in AR and ERβ receptors genes was not significantly associated with IIEF-15 scores or with GH/IGF-1 levels, but a negative correlation between CA repeats and the presence of cardiomyopathy (ρ = - 0.846; p = 0.002) was present.

CONCLUSIONS

Men with acromegaly have a high prevalence of erectile dysfunction, but it does not appear to be correlated with treatments, testosterone levels and AR/ER-beta signaling. Nonetheless, a shorter CA polymorphic trait (ERbeta) is associated with the presence of cardiomyopathy. If confirmed, these data may suggest an association between an incorrect hormonal balance and increased cardiovascular risk in acromegaly subjects.

Prevalence and associated factors of moderate to severe erectile dysfunction among adult men in Malaysia

Erectile dysfunction (ED) is a pervasive problem among men, often shrouded in silence and stigma. This manuscript analysed the National Health and Morbidity Survey 2019 data to identify the prevalence of moderate to severe ED among men aged 18 and above in Malaysia and describe its associated factors. Self-administered questionnaire on ED utilised a locally validated International Index of Erectile Function. Variables on sociodemographics, risky lifestyles and comorbidities were obtained via an interviewer-administered questionnaire. The prevalence was determined using complex sampling analysis, and logistic regression was used to determine the associated factors of ED. A sample of 2403 men aged ≥ 18 participated, with a moderate to severe ED prevalence was 31.6% (95% CI 28.8, 34.6). The mean (± SD) of the total score of IIEF-5 for overall respondents was 18.16 (± 4.13). Multiple logistic regression analysis revealed a significant association between moderate to severe ED among men aged 60 years and above, single or divorcee, men without formal, primary, and secondary education, non-government employees, unemployed, and retiree, as well as physically inactive men. Focused public health interventions are necessary to improve education in sexual health, increase health promotion programs, and promote healthy ageing across the population.

Efficacy of Neuromodulation Interventions for the Treatment of Sexual Dysfunction: A Systematic Review

OBJECTIVES

The primary aim of this review was to analyze the literature for the efficacy of neuromodulation interventions in treating both male and female sexual dysfunction.

MATERIALS AND METHODS

Studies were identified from PubMed, Scopus, PsychINFO, CINAHL, and Cochrane. Results were synthesized qualitatively without pooling owing to the heterogeneous nature of outcome assessments.

RESULTS

Overall findings from studies generally supported that neuromodulation interventions were associated with improvement in sexual function. Specific domains that improved in male patients included erectile function, desire, and satisfaction, whereas desire, arousal, orgasm, lubrication, quality of "sex life," intercourse capability, and dyspareunia improved in female patients. Male ejaculation, orgasm, and intercourse capability were the only domains that continued to decline after the use of neuromodulation interventions, although this was only reported in one study.

CONCLUSION

Our review suggests that there may be promise and potential utility of neuromodulation in improving sexual dysfunction; however, further research is needed.

Changes in frequency of urology clinic visits and diagnosis of erectile dysfunction in Germany before and during COVID-19

OBJECTIVES

To explore and analyze [1] the differences in the total number of patients visiting urology practices in Germany, [2] explore and analyze any differences in the number of newly diagnosed erectile dysfunction (ED) patients as well as [3] the number of new drug prescription, before and during the COVID-19 pandemic in Germany (April 2019-March 2020 and April 2020-March 2021).

METHODS

This retrospective cross-sectional study used data from the Disease Analyzer database (IQVIA) and included all patients aged ≥18 years with at least one visit to one of 85 urology practices across Germany. Outcomes were the mean number of patients with [1] new diagnosis of ED and [2] new prescription of drugs for erectile dysfunction per practice, in pandemic (April 2020-March 2021) versus non-pandemic (April 2019-March 2020) time periods. Differences between the periods were assessed using Wilcoxon tests.

RESULTS

In the non-pandemic period, there were 195,895 men, and in the pandemic period, 192,659 men visiting urology practices in Germany. A total of 10,977 men were initially diagnosed with ED in non-pandemic and 12,213 (+11.26%) men in pandemic time periods. Although the differences of new ED diagnoses were not statistically significant, a non-significant increase of new ED diagnoses was observed across all age groups. Also, a non-significant increase in new ED prescription drugs was detected across all age groups.

CONCLUSIONS

Even though less urology practice-visits of men with ED were recorded during the COVID-19 pandemic, an increase of new ED diagnosis was observed across all age groups between April 2020 and March 2021.

Evaluation of the frequency of metabolic syndrome and assessment of cardiometabolic index among men with erectile dysfunction: a prospective cross-sectional study

Purpose

Recently, an association has been observed between metabolic syndrome and erectile dysfunction (ED). This study aimed to evaluate the cardiometabolic index (CMI) in patients with ED.

Methods

This cross-sectional study was performed on 144 patients with ED who were referred to a urology clinic in Rasht, Iran, from 2019 to 2021. Metabolic syndrome was evaluated according to National Cholesterol Education Program Expert Panel (NCEP) and Adult Treatment Panel III (ATP III) criteria which are considered three positive criteria from five. Also, the ED severity was classified as weak, moderate, and severe based on the five-item International Index of Erectile Function (IIEF5) questionnaire.

Results

The mean age of participants was 53.46 ± 10.58 years. 56.9% had abdominal obesity, 48.6% had hypertriglyceridemia, 34.7% had low HDL-C, 55.6% had hypertension and 56.9% had elevated fasting blood sugar (FBS). 43.8% had diabetes and 13.2% had cardiovascular disease. The mean CMI was 2.51 ± 1.57. The prevalence of metabolic syndrome was 50.7%. Body mass index (BMI) was significantly associated with metabolic syndrome and CMI (P = 0.001). The severity of ED had a significant relationship with high FBS in patients. CMI and components of abdominal obesity, hypertriglyceridemia, and low HDL-C had no statistically significant relationship with ED. However, the incidence of moderate and severe ED increased with increasing the number of metabolic syndrome components.

Conclusion

ED is not significantly associated with metabolic syndrome and CMI, however, the severity of this disorder increases with increasing the number of components of metabolic syndrome.

Prevention of cardiovascular disease in young adults: Focus on gender differences. A collaborative review from the EAS Young Fellows

A steady rise in cardiovascular morbidity and mortality has been observed in young adults within the last decades. This trend corresponds to an increasing prevalence of traditional cardiovascular risk factors such as obesity and diabetes mellitus type 2 among young adults living in developed countries. Moreover, age-specific risk factors, such as substance abuse, contraceptive medication, and pregnancy-related diseases also correlate with an increased incidence of cardiovascular diseases. In this review, we discuss the available data for young adults on the epidemiology and the rationale for the causality of traditional and newly emerging risk factors of atherosclerotic cardiovascular diseases. We focus on gender-related differences in the exposure to these risk factors, investigate the recent data regarding screening and risk stratification in the young adult population, and describe the current state of the art on lifestyle and therapeutic intervention strategies in the primary prevention setting.

The role of socioeconomic status and oxidative balance score in erectile dysfunction: A cross-sectional study

Background

Erectile dysfunction (ED) is a complex disorder of biopsychosocial etiology. Approximately 3%-77 % of adult men worldwide are more or less affected by ED.

Objective

This cross-sectional study investigated the association between ED and socioeconomic status (SES) based on a nationally representative adult male population.

Methods

The poverty income ratio (PIR), which refers to household income ratio to the established poverty line, was used to assess SES. Oxidative stress related to diet and lifestyle was reflected by oxidative balance score (OBS). Erectile function was evaluated using a questionnaire. Based on the results of the questionnaire, participants were divided into two groups of those without ED (always or almost always be able to erect and keep erection, usually be able to erect and keep erection) and with ED (sometimes be able to erect and keep erection, never be able to erect and keep erection). Multivariate logistic regression, multiple models, and restricted cubic spline (RCS) were used to analyze and describe the interaction between ED, OBS, and SES.

Results

Compared with men without ED, those with ED were more likely to be older in age (43.98 vs 37.74, P＜0.0001), and less educated (P < 0.001), and with a ratio of family income to poverty less than 3.5 (P = 0.02), higher BMI (30.11 vs 27.84, P＜0.0001), lower OBS (21.71 vs 23.17, P = 0.04), having habit of smoking (P = 0.04), with diabetes (P＜0.0001), and with hypertension (P = 0.003). Participants with higher PIR were more likely to report good erectile function than those with lower PIR through multivariate analysis (OR = 0.49, 95 % CI = 0.31-0.78, P = 0.005). The RCS model revealed a negative non-linear correlation of PIR with ED when PIR ≤3.89. It is interesting to note that PIR was＞3.89 showed a positive non-linear relationship with ED.

Conclusion

The social determinants of health and intake of oxidants and antioxidants were considered as risk factors for ED and could be studied as a research focus in the future.

What Sexual Problems Does a Sample of LGB+ People Report Having, and How Do They Define Sexual Pleasure: A Qualitative Study to Inform Clinical Practice

Introduction: Sexual pleasure is a human right and a central aspect of human sexuality that contributes significantly to people's overall well-being, making it an essential element to consider in clinical settings. This study aims to expand the understanding of sexual pleasure by examining how LGB+ people (lesbian, gay, bisexual, and other minority sexual orientations)-who perceived having a sexual problem-define solitary and partnered sexual pleasure. Methods: A cross-sectional exploratory qualitative study was conducted online. The current study included 85 people who self-identified as LGB+ and reported experiencing a sexual problem. Data analysis was performed using summative content analysis. Results: The results for solitary sexual pleasure comprised the creation of 5 categories (Enhancing the relationship with oneself, Specification of solitary pleasure, Negative experience, Unrestrained experience and A goal). For partnered sexual pleasure, 9 categories were created (The perks of being with another, Openness to experience, A result of sexual techniques, Psychophysiological experience, Misconceptions about sexual pleasure, Absence of intrapersonal constraints, Undesirable feelings, Explicit consent, and Absence of interpersonal constraints). Discussion: Despite reporting sexual problems, most participants reported having experienced sexual pleasure, and were able to define it. This study provided a deeper understanding of the perspectives on and experiences of sexuality among LGB+ people who experience sexual problems. Our findings highlight that current diagnostic criteria (e.g., DSM-5) do not seem to align with the problems reported by this sample population (the problems presented are beyond their sexual function). This reinforces the importance of viewing sexual problems from a perspective that goes beyond the categorial psychopathology model. Our study's findings may offer valuable insights for the evaluation and treatment of sexual problems, where sexual pleasure is considered a crucial aspect of sexual well-being.

New Solutions for Old Problems: How Reproductive Tissue Engineering Has Been Revolutionizing Reproductive Medicine

Acquired disorders and congenital defects of the male and female reproductive systems can have profound impacts on patients, causing sexual and endocrine dysfunction and infertility, as well as psychosocial consequences that affect their self-esteem, identity, sexuality, and relationships. Reproductive tissue engineering (REPROTEN) is a promising approach to restore fertility and improve the quality of life of patients with reproductive disorders by developing, replacing, or regenerating cells, tissues, and organs from the reproductive and urinary systems. In this review, we explore the latest advancements in REPROTEN techniques and their applications for addressing degenerative conditions in male and female reproductive organs. We discuss current research and clinical outcomes and highlight the potential of 3D constructs utilizing biomaterials such as scaffolds, cells, and biologically active molecules. Our review offers a comprehensive guide for researchers and clinicians, providing insights into how to reestablish reproductive tissue structure and function using innovative surgical approaches and biomaterials. We highlight the benefits of REPROTEN for patients, including preservation of fertility and hormonal production, reconstruction of uterine and cervical structures, and restoration of sexual and urinary functions. Despite significant progress, REPROTEN still faces ethical and technical challenges that need to be addressed. Our review underscores the importance of continued research in this field to advance the development of effective and safe REPROTEN approaches for patients with reproductive disorders.

Precarious Manhood Beliefs Are Positively Associated with Erectile Dysfunction in Cisgender Men

The notions that manhood is hard to attain, easy to lose, and needs to be proven via public action constitute precarious manhood beliefs (PMB). PMB is a new concept and it remains unclear whether and how PMB relate to erectile dysfunction (ED) in cisgender men. The ability to achieve an erection remains considered as a cornerstone of masculinity and sexual performance can be conceived as a proof of one's masculinity. In this context, ED can be received as sexual failure and a threat to a man's masculinity and sense of adequacy. For these reasons, the hypothesis that PMB are associated with ED warranted empirical testing. In an anonymous online survey focusing on men's mental health conducted in German-speaking countries of Europe, 507 cisgender men (Mage = 44.2, SDage = 15.2) completed measures on PMB, sexual function, self-stigma, social desirability, and conformity to traditional masculinity ideology (TMI). Multilinear regression analysis with stepwise introduction of relevant covariates evaluated potential associations between PMB and ED. Of a 507 cisgendered male sample, 63.1% reported an increased risk for ED based on previously established cutoff points. Elevated levels of PMB endorsement among the men predicted reduced sexual and erectile function in all models, even when accounting for relevant control variables such as age, education, self-stigma, social desirability, or conformity to TMI. Group comparisons revealed that the men suffering from ED showed higher levels of PMB endorsement but not self-stigma nor TMI relative to men without ED. PMB are significantly associated with ED. While determining causality will require further study, our results may support the hypothesis that higher levels of PMB endorsement may lead to increased tension to perform sexually, resulting in increased psychological pressure and a higher risk to develop ED.

Survival From Revision Surgery for New Rigicon Infla10 Three-piece Inflatable Penile Prosthesis Is Comparable to Preceding Devices

OBJECTIVE

To report the incidence of the reoperation surgeries of nearly all the Rigicon Infla10 implants performed since device introduction in 1/2019. Inflatable penile prosthesis has some of the highest survival from revision surgery of any medical device implanted in humans [1]. We expand on previous Rigicon Infla10 research, adding more patients and increasing follow-up duration [2].

MATERIALS AND METHODS

535 patients had Rigicon Infla10 devices implanted from 1/2019 to 8/2022. 103 surgeons from 26 centers in 15 countries participated in the study. Patient information forms were analyzed from virtually all implantations. Explantation or revision surgery for mechanical failure, infection, other medical reasons, and patient dissatisfaction were cataloged. SPSS 25.0 (IBM) was used for the statistical analysis of Kaplan Meier survival statistics.

RESULTS

Mean follow-up was 24.2months (7-43months). Mean patient age was 56years. Reoperation was necessary for 3.5% of subjects. Revision for mechanical failure occurred in 2.24% (12/535). The rate of explant for patient dissatisfaction was 0.56% (3/535). Revision for component out of place was 0.37% (2/535) with an infection rate and unsuccessful Peyronie's correction being 0.19% (1/535). Survival from requiring another corrective surgery at 1, 2, and 3years was 96.4%, 95.0%, and 94.0%, respectively. These initial survival rates compare favorably to devices currently available, which have been repeatedly enhanced to improve reliability.

CONCLUSION

In its first 2-3years of availability, The Rigicon Infla10 inflatable penile prosthesis shows freedom from revision comparable to existing enhanced devices that have been on the market for decades.

Oxidized soluble guanylyl cyclase causes erectile dysfunction in alcoholic mice

BACKGROUND AND PURPOSE

Alcohol abuse has been associated with erectile dysfunction (ED), but the implicated molecular mechanisms are unresolved. This study analyses the role of alterations in soluble guanylyl cyclase (sGC) in ED.

EXPERIMENTAL APPROACH

ED was analysed in adult male C57BL/6J mice subjected to the Chronic Intermittent Ethanol (CIE) paradigm. Erectile function was assessed in anaesthetised mice in vivo by evaluating intracavernosal pressure (ICP) and in vitro in isolated mice corpora cavernosa (CC) mounted in a myograph. Protein expression and reactive oxygen species were analysed by western blot and dihydroethidium staining, respectively.

KEY RESULTS

In CIE mice, we observed a significant decrease in the relaxant response of the CC to stimulation of NO release from nitrergic nerves by electrical field stimulation, to NO release from endothelial cells by acetylcholine, to the PDE5 inhibitor sildenafil, and to the sGC stimulator riociguat. Conversely, the response to the sGC activator cinaciguat, whose action is independent of the oxidation state of sGC, was significantly enhanced in these CC. The responses to adenylyl cyclase stimulation with forskolin were unchanged. We found an increase in reactive oxygen species in the CC from CIE mice as well as an increase in CYP2E1 and NOX2 protein expression. In vivo pre-treatment with tempol prevented alcohol-induced erectile dysfunction.

CONCLUSIONS AND IMPLICATIONS

Our results demonstrate that alcoholic mice show ED in vitro and in vivo due to an alteration in the redox state of sGC and suggest that sGC activators may be effective in ED associated with alcoholism.

Erectile Dysfunction in a U.S. National Sample of Male Military Veterans

INTRODUCTION

Erectile dysfunction (ED) is one of the most prevalent sexual dysfunctions in men and often co-occurs with physical and mental health issues. Military veterans are at elevated risk for many comorbid physical and mental health issues, including ED, although little research has examined the prevalence and health burden of ED in the general U.S. veteran population. The present study calculated the weighted lifetime prevalence of ED and its association with physical and mental health conditions in a nationally representative sample of U.S. veterans.

MATERIALS AND METHODS

Using data from a nationally representative sample of 921 male U.S. veterans, self-report assessments assessed major depressive disorder (MDD), generalized anxiety disorder, probable post-traumatic stress disorder (PTSD), at-risk/problem gambling, and past two-week suicidal ideation and attempts, as well as 22 physical health conditions.

RESULTS

The weighted lifetime prevalence of ED among veterans was 14.2% (95% CI = 12.0%-16.0%). Veterans with ED were more likely to be older than 60, unemployed, to have served less than four years in the military, and to have served in combat roles and in the Vietnam War. Relative to veterans without ED, veterans with ED had higher rates of sleep disorders (adjusted odds ratio [aOR] = 3.23), arthritis (aOR = 2.60), high cholesterol (aOR = 2.30), diabetes (aOR = 2.29), high blood pressure (aOR = 2.14), obesity (aOR = 2.12), heart disease (aOR = 2.10), cancer (aOR = 2.07), respiratory illness (aOR = 2.02), and chronic pain (aOR = 1.86). After adjusting for sociodemographic characteristics and physical health conditions, ED was associated with increased odds of MDD (aOR = 2.88), at-risk/problem gambling (aOR = 2.45), and suicidal ideation (aOR = 1.91) but not for generalized anxiety disorder (aOR = 1.69) or probable PTSD (aOR = 1.63). When considered in the context of all mental health variables, MDD was independently associated with ED (aOR = 3.39).

CONCLUSION

This study examined both mental and physical health conditions associated with ED in a U.S. nationally representative sample of veterans. ED is prevalent in veterans and associated with elevated physical and mental health burden. Results highlight the importance of considering ED in disease prevention and treatment efforts in this population. These findings may help inform prevention approaches as well as clinical targets for early screening and treatment in vulnerable subgroups of this population. Notably, data collected relied on self-report assessments; data on race and socioeconomic status were not collected.

Radiofrequency energy in the treatment of erectile dysfunction-a novel cohort pilot study on safety, applicability, and short-term efficacy

The erectile mechanism depends, in part on the intactness of the collagen components in the penis. As such, impaired collagen may have a deleterious effect on erectile function. Radiofrequency energy has been shown to renew and restore spatial structural arrangement of collagen fibers; therefore, treatment of erectile dysfunction with radiofrequency could lead to anatomical and physiological changes at the penile tissue level and could lead to improvement in the erectile mechanism. We conducted this study to assess the effect of radiofrequency treatment on erection quality. We evaluated the safety, applicability, and efficacy of a self-applied, handheld, low-intensity radiofrequency device (Vertica®) in men with moderate and mild-to-moderate organic erectile dysfunction. The treatment protocol consisted of 12 treatments (twice a week during the 1st month, and once a week during the 2nd month), and each participant treated himself individually. Treatment outcomes were evaluated using the International Index of Erectile Function, Erection Hardness Scale, Erectile Dysfunction Index of Treatment Satisfaction, Benefit, Satisfaction & Willingness to continue, Quality of Erection Questionnaire, Sexual Quality of Life questionnaires and specific questions addressing side effects and ease of use. Twenty-eight out of 32 men (mean age 59.5 ± 9.8, range: 41-78 years) completed a one-month follow-up after treatment. Mean International Index of Erectile Function (43.7. ± 7.8 vs. 60.9 ± 10.8, p < 0.01), International Index of Erectile Function -Erection Function domain (16.8 ± 3.1 vs. 24.4 ± 4.4, p < 0.001), and Erection Hardness Scores (2.2 ± 0.8 vs. 3.2 ± 0.5, p = 0.01) were all significantly improved. Fifty percent of patients achieved normal erectile function parameters according to the International Index of Erectile Function -Erection Function domain score >25. High mean scores were achieved in the Erectile Dysfunction Index of Treatment Satisfaction (76.8 ± 20.3), Benefit, Satisfaction & Willingness to continue (4.83 ± 1.1), Quality of Erection Questionnaire (73.4 ± 23.8), and Sexual Quality of Life (67 ± 29.4) questionnaires. No side effects were reported and participants rated the device as very comfortable, simple, and easy to operate.

Population-level prevalence, effect on quality of life, and treatment behavior for erectile dysfunction and premature ejaculation in Poland

The prevalence of erectile dysfunction (ED) and premature ejaculation (PE) has been investigated in many population-based studies in different regions of the world. However, reliable data are lacking for Eastern Europe. Therefore, the aim of this study was to analyze the prevalence, effect on quality of life, and treatment-related behaviors for ED and PE in a population-representative sample of Polish men. We used an Internet interview format and rigorously adapted, widely accepted instruments for ED and PE evaluation. The study included 3001 men, representative for age and place of residence and adequate proportions of respondents from urban and rural areas. The prevalence of ED was 30.1-61.1%, and the prevalence of PE was 19.3-38.1%; there were no differences between urban and rural areas. Whereas the prevalence of ED increased with age, the prevalence of PE did not increase. More than 50% of respondents with ED and more than 60% of respondents with PE had concerns about their quality of life. However, less than one fourth of participants with ED and PE were seeking treatment, most of whom received treatment. The results of our nationwide analysis, reflecting the entire Polish population of men, are consistent with other epidemiologic studies of ED and PE and may support educational campaigns and health improvement programs in Poland.

Hydrogen sulfide regulates the redox state of soluble guanylate cyclase in CSE-/- mice corpus cavernosum microcirculation

The corpus cavernosum (CC) is a highly vascularized tissue and represents an excellent example of microcirculation. Indeed, erectile dysfunction is considered an early index of cardiovascular disease. Hydrogen sulfide (H2S) at the vascular level is endogenously produced from L-cysteine mainly by the action of cystathionine-γ-lyase (CSE) and plays a role in CC vascular homeostasis. Here we have evaluated the involvement of the endogenous H2S in the regulation of the soluble guanylate cyclase (sCG) redox state. The lack of CSE-derived endogenous H2S, in CSE-/- mice, disrupted the eNOS/NO/sGC/PDE pathway. Indeed, the absence of CSE-derived endogenous H2S caused a significant reduction of the relaxant response to riociguat, an sGC redox-dependent stimulator. Conversely, the response to cinaciguat, an sGC redox-independent activator, was not modified. The relevance of the role played at the redox level of the endogenous H2S was confirmed by the findings that in CC harvested from CSE-/- mice there was a significant reduction of GCβ1 expression coupled with a decrease in CYP5R3, a reductase involved in the regulation of the redox state of sGC. These molecular changes driven by the lack of endogenous H2S translate into a significant reduction in cGMP levels. The replenishment of the lack of H2S with an H2S donor rescued the relaxant response to riociguat in CC of CSE-/- mice. In conclusion, the endogenous CSE-derived H2S plays a physiological key role in the regulation of the redox state of sGC in CC microcirculation.