Group items tagged

small study finds 50 mg of DHEA improves symptoms of ED.  Small study, so hard to take a lot from this, but DHEA is an androgen, so logically it makes sense.  

Elevated Prolactin level plays role in ED and reduced sexual activity in men.

l-Arginine with pycnogenol significantly improved ED over l-Arginine alone.

Small study looking at testosterone in men with ED.  They found "serum total testosterone level is not a sensitivity indicator for detection of hypogonadism".  Salivary free testosterone levels is the best way to evaluate androgen levels.

review study points out that exercise, predominantly cardio, improved ED in men.

men with Testosterone <300 ng/dl with levels after 8 months of therapy achieving +680 ng/dl.

Bulbine natalensis (Baker) stem found to be useful in libido/ED at doses of 25-50 mg/kg in animal studies.

Only abstract available here.  High uric acid and lipoprotein A levels associated with ED in men with CAD.

testosterone therapy in men with low Testosterone shown to improve insulin resistance, lower cholesterol and LDL, lower LpA, and improve ED.

ED is the result of low-grade, chronic inflammation.

Study finds a link between Estradiol, venous insufficiency, and ED in men.  The signaling is through VEGF and NO.

Study finds that low Testosterone (total, free, and bioavailable) associated with reduced quality of life in men with Diabetes.  So was ED.

low T and elevated E2 result in ED in men.  The authors conclude that E2 provides an additive effect on that of low T.  Yet, they fail to realize the previous research that high aromatase activity (Testosterone to Estradiol production) causes the low T.

Study of Taiwanese men finds low free Testosterone and hs-CRP is predictive of ED in obese men.

Here is where science and particularly conclusions fail the public.  The authors conclusions are that tadalifl improves ED and sexual function irrespective of Testosterone levels.  However, the results say something different.  The group with normal Testosterone responded better versus the low Testosterone group.  This difference didn't reach statistical significance though.  This lack of statistical significance does not exclude the fact that there indeed was a difference.  The authors conlcusions take no part in reporting the whole truth, just that which supports their hypothesis. The diagnosis of low T in this study was < 300 ng/dl

In rat model, Pb reduced NO and contributed to ED.  Of interest, arginine masked the effects of Pb on NO synthase and vitamin C reversed it all together.

Study links peripheral neuropathy and ED in men.  Though, both are likely a reflection of low Testosterone as elevated aromatase activity.

Case study of Pb induced neurogenic ED.

Environmental toxins (pesticides, solvents shown to be associated increased odds ratio for ED.

nice review of the link between environment and ED in men.  No direct cause-effect, but association is definitely seen.