Related Experiment Video
Updated: Jun 28, 2026

Isolation of Adipose Derived Regenerative Cells for the Treatment of Erectile Dysfunction Following Radical Prostatectomy
Published on: December 28, 2021
Six-month administration of 1% testosterone gel is able to restore erectile function in hypogonadal patients with
Giovanni Corona1, Luisa Petrone, Alessandra D Fisher
1Andrology Unit, Department of Clinical Physiopathology, University of Florence, Florence, Italy. jocorona@libero.it
Objective:
The relationship between hypogonadism and erectile dysfunction (ED) has not been completely clarified. Data derived from studies evaluating the effect of testosterone (T) replacement therapy (TRT) on patients with ED have yield mixed results. The purpose of the present study was to evaluate the efficacy and safety of a 50 mg/day of 1% hydroalcoholic testosterone gel applied on non-scrotal skin for hypogonadal men with sexual dysfunction.
Material And Methods:
We studied a consecutive series of 85 hypogonadal (total testosterone < 12 nmol/L) men (mean age 51.0 +/- 14.0 years) attending our Andrological Unit. Patients were interviewed using ANDROTEST structured interview, a 12-item tool previously validated for the screening of hypogonadism in patients with sexual dysfunction. Patients were also invited to complete erectile function domain of International Index of Erectile Function (IIEF-6;11). Different clinical and biochemical parameters were evaluated at baseline and after 6 months of TRT.
Results:
Subjects with ED at baseline (61.2%) showed significant increase of IIEF-6 score after 6 months of TRT (9.7 +/- 7.7 vs. 14.6 +/- 9.8, p < 0.001). Furthermore, subjects with more severe hypogonadism at baseline (T in the lowest quartile) showed the best increase in IIEF-6 score. All haematological and biochemical parameters tested remained in the normal rage at the end of the study.
Conclusions:
Our study demonstrated that 1% hydroalcoholic testosterone gel is an effective and safe treatment option in subjects with ED.
Related Concept Videos
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Male Sexual Response: Erection & Ejaculation
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
Disorders of the Male Reproductive System
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
