Home < Erectile Dysfunction Research

Erectile dysfunction (ED or (male) impotence) is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis. There are various underlying causes, such as cardiovascular leakage and diabetes, many of which are medically treatable. Nerve trauma from prostatectomy surgery can cause chronic erectile dysfunction.
The causes of erectile dysfunction may be physiological or psychological. Physiologically, erection is a hydraulic mechanism based upon blood entering and being retained in the penis, and there are various ways in which this can be impeded, most of which are amenable to treatment. Psychological impotence is where erection or penetration fails due to thoughts or feelings (psychological reasons) rather than physical impossibility; this can often be helped. Notably in psychological impotence, there is a very strong placebo effect.

Ready for a bedroom revolution?
Veyron-S will turn you into a stud!

We have customers who order Veyron-S for years and we are so sure about our product that we are ready to return back the money to you if you are not
satisfied with Veyron-S.
Money back guarantee!!!

Veyron-S is the best all-natural male enhancer available today.
This exciting new supplement improves sexual performance by:
Providing strong, long-lasting erections
Stimulating desire
Restoring natural vitality
Boosting stamina
The result: unforgettable orgasms.
Veyron-S is 100% free of the harmful synthetic chemicals found in other male enhancers. Users of this supplement do not suffer any deleterious side effects.
In clinical trials, the effects of Veyron-S lasted up to 60 hours, perfect for long weekends and romantic getaways.

Erectile dysfunction Research
Sildenafil Citrate Improves Erectile Function and Lower Urinary Tract Symptoms Independent of Baseline Body Mass Index or LUTS Severity
Objectives
To evaluate the body mass index (BMI) and lower urinary tract symptom (LUTS) severity on treatment response to sildenafil in men with erectile dysfunction (ED) and moderate to severe LUTS associated with benign prostatic hyperplasia.
Methods
A post hoc analysis of data from a 12-week, double-blind, placebo-controlled study of sildenafil (50 mg once daily titrated to 100 mg once daily) was conducted. The BMI categories were obese (≥30 kg/m2), overweight (≥25 to <30 kg/m2), and normal weight (<25 kg/m2). ED was defined as a score of ≤25 on the erectile function domain of the International Index of Erectile Function, and LUTS was defined by an International Prostate Symptom Score of ≥12. The maximal urinary flow rate was determined by uroflowmetry.
Results
Patients receiving sildenafil (n = 189) had a significant improvement in the erectile function domain scores of the International Index of Erectile Function (P < .0001 vs placebo, n = 180), which did not vary across BMI groups. A greater improvement in LUTS score was observed with sildenafil compared with placebo for men with severe LUTS (−8.6 vs −2.4, P < .0001) than in men with moderate LUTS (−3.6 vs −1.7, P = .06). Also, the improvement in LUTS scores was significant (P ≤ .02) for men taking sildenafil independent of BMI (obese, −8.9 vs −5.4; overweight, −7.3 vs −3.2; normal weight, −7.1 vs −0.84). No difference was found among the treatment groups in the change from baseline maximal urinary flow rate across all LUTS and BMI categories (range 4.5 to −4.2 mL/s).

Regular Intercourse Protects Against Erectile Dysfunction: Tampere Aging Male Urologic Study
Background
Erectile dysfunction is common among men aged more than 60 years. Its cause involves both physiologic and psychosocial factors.
Methods
To evaluate the effects of coital frequency on subsequent risk of erectile dysfunction, data were analyzed from a population-based 5-year follow-up study that was conducted in Pirkanmaa, Finland, using postal questionnaires. Assessment was based on the 5-item version of the validated International Index of Erectile Function. Men with erectile dysfunction at entry were excluded from the analysis. The study sample consisted of 989 men aged 55 to 75 years (mean 59.2 years). The most common comorbidities were hypertension (32%), heart disease (12%), depression (7%), diabetes (4%,) and cerebrovascular disorder (4%).
Results
The overall incidence of moderate or complete erectile dysfunction was 32 cases per 1000 person-years (95% confidence interval [CI], 27-38). After adjustment for comorbidity and other major risk factors, men reporting intercourse less than once per week at baseline had twice the incidence of erectile dysfunction compared with those reporting intercourse once per week (79 vs 33/1000, incidence rate ratio 2.2, 95% CI, 1.3-3.8). The risk of erectile dysfunction was inversely related to the frequency of intercourse. No relationship between morning erections and incidence of moderate or severe erectile dysfunction was found.
Conclusion
Regular intercourse protects against the development of erectile dysfunction among men aged 55 to 75 years. This may have an impact on general health and quality of life; therefore, doctors should support patients' sexual activity.
Keywords: Cohort studies; Impotence; Incidence; Sexual behavior, erectile dysfunction

A Prospective Study of Lower Urinary Tract Symptoms and Erectile Dysfunction
Purpose
Several studies have shown that men with lower urinary tract symptoms are more likely to experience erectile dysfunction. All except 1 of these studies were cross-sectional, limiting inferences about whether lower urinary tract symptoms precipitate erectile dysfunction.
Materials and Methods
The association between lower urinary tract symptoms and incident erectile dysfunction was examined prospectively in the Health Professionals Follow-Up Study. Lower urinary tract symptoms were assessed biennially by the American Urological Association symptom index, which captures symptoms of frequency, urgency and force of urinary stream. Severe lower urinary tract symptoms was defined as a symptom score of 20 points or greater and no lower urinary tract symptoms was defined as a score of 7 points or less in men not treated for lower urinary tract symptoms. In 2000 the men were asked to rate erectile function for several periods. Erectile dysfunction was defined as poor or very poor function, or erectile dysfunction medication use, while no erectile dysfunction was defined as very good or good function and no erectile dysfunction medication use. We estimated the RR using Poisson regression, adjusting for age and other potentially confounding factors.
Results
We observed 3,953 incident erectile dysfunction cases among 17,086 men. Men with severe lower urinary tract symptoms in 1994 or earlier had a statistically significant 40% higher risk of erectile dysfunction subsequently than men without lower urinary tract symptoms. The risk of erectile dysfunction increased with increasing lower urinary tract symptom severity (p trend <0.0001). The positive association between lower urinary tract symptoms and erectile dysfunction was stronger in younger than in older men (p interaction = 0.03).
Conclusions
This study provides evidence that men with lower urinary tract symptoms are more likely to have erectile dysfunction subsequently.
Key Words: penis; prostate; erectile dysfunction; urination disorders; questionnaires
Abbreviations: AUA, American Urological Association; BMI, body mass index; BPH, benign prostatic hyperplasia; ED, erectile dysfunction; HPFS, Health Professionals Follow-up Study; LUTS, lower urinary tract symptoms; TURP, transurethral prostate resection

Erectile Dysfunction Predicts Coronary Heart Disease in Type 2 Diabetes
Objectives
We examined the predictive power of erectile dysfunction (ED) on coronary heart disease (CHD) events in Chinese men with type 2 diabetes.
Background
Subjects with diabetes are prone to develop cardiovascular complications. Erectile dysfunction is strongly associated with CHD in cross-sectional studies, but prospective data are lacking.
Methods
A consecutive cohort of men with no clinical evidence of cardiovascular disease underwent comprehensive assessments for diabetic complications. Erectile dysfunction was defined according to the definition of the National Institutes of Health Consensus Conference 1992. Coronary heart disease events were censored with centralized territory-wide hospital databases in 2005.
Results
Of 2,306 subjects (age: 54.2 ± 12.7 years; follow-up: 4.0 [range 1.7 to 7.1] years), 26.7% had ED at baseline. The incidence of CHD events was higher in men with ED than those without (19.7/1,000 person-years, 95% confidence interval [CI] 14.3 to 25.2 person-years vs. 9.5/1,000 person-years, 95% CI 7.4 to 11.7 person-years). Men who developed CHD events were older; had a higher frequency of ED and microvascular complications; had longer duration of diabetes; and had higher blood pressure, total cholesterol, low-density lipoprotein cholesterol, and urinary albumin/creatinine ratio but lower high-density lipoprotein cholesterol and estimated glomerular filtration rate than those without CHD events. Erectile dysfunction remained an independent predictor for CHD events (hazard ratio 1.58, 95% CI 1.08 to 2.30, p = 0.018) after adjustment for other covariates along with age, duration of disease, and use of antihypertensive agents and albuminuria.
Conclusions
In type 2 diabetic men without clinically overt cardiovascular disease, the presence of ED predicts a new onset of CHD events. Symptoms of ED should be independently sought to identify high-risk subjects for comprehensive cardiovascular assessments.
Erectile Dysfunction Predicts Coronary Heart Disease in Type 2 Diabetes
Ronald Ching-Wan Ma, Wing-Yee So, Xilin Yang, Linda Wai-Ling Yu, Alice Pik-Shan Kong, Gary Tin-Choi Ko, Chun-Chung Chow, Clive Stewart Cockram, Juliana Chung-Ngor Chan, Peter Chun-Yip Tong
Erectile dysfunction (ED) is a common but often neglected finding in patients with type 2 diabetes. Cross-sectional studies suggested that ED was associated with coronary heart disease (CHD). The prospective relationship between ED and the development of new CHD events is not well established. This study suggests that ED is an independent predictor of new CHD events in Chinese patients with type 2 diabetes and without clinically overt cardiovascular disease. Patients with symptoms of ED should be identified for comprehensive cardiovascular assessments.
Abbreviations: ACEI, angiotensin-converting enzyme inhibitor; ACR, albumin/creatinine ratio; ARB, angiotensin receptor blocker; CHD, coronary heart disease; CI, confidence interval; DBP, diastolic blood pressure; ED, erectile dysfunction; eGFR, estimated glomerular filtration rate; IIEF, International Index of Erectile Function; PAD, peripheral arterial disease; SBP, systolic blood pressure

We bring you the highest quality original product from Hong Kong.
Achieve more satisfying sexual experiences with Veyron-S !!!
Order Veyron-S now for only USD29.95