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Related Experiment Video

Updated: Jul 14, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

hSMR3A as a marker for patients with erectile dysfunction.

Yuehong Tong¹, Moses Tar, Val Monrose

¹Institute of Smooth Muscle Biology, Department of Urology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.

The Journal of Urology

|May 22, 2007

Summary

Human SMR3A (hSMR3A) gene expression is significantly down-regulated in patients with erectile dysfunction. Restoring hSMR3A levels may improve erectile function, offering a potential therapeutic target for ED.

Related Experiment Videos

Last Updated: Jul 14, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

Area of Science:

Urology
Molecular Biology
Genetics

Background:

Vcsa1 gene down-regulation is linked to erectile dysfunction (ED) in rats.
Gene transfer of Vcsa1 or its peptide restored erectile function in aging rats.

Purpose of the Study:

Identify a human homologue of Vcsa1 (hSMR3A).
Determine hSMR3A expression levels in human erectile dysfunction.
Assess hSMR3A's role in erectile function.

Main Methods:

Identified hSMR3A via protein database similarity searches.
Generated and tested pVAX-hSMR3A in aging rats for erectile physiology.
Quantified hSMR3A expression in human corporeal tissue from ED patients using qRT-PCR.

Main Results:

Intracorporeal pVAX-hSMR3A increased erectile function in rats, confirming it as a functional Vcsa1 homologue.
Over 10-fold down-regulation of hSMR3A transcript observed in ED patients.
hSMR3A was down-regulated in both diabetic and non-diabetic ED patients.

Conclusions:

hSMR3A serves as a potential biomarker for diabetic and non-diabetic erectile dysfunction.
Therapies targeting hSMR3A expression may offer a novel treatment for erectile dysfunction.