Related Experiment Video
Updated: Oct 29, 2025
07:42
Laser-capture Microdissection of Human Prostatic Epithelium for RNA Analysis
Published on: November 26, 2015
13.6K
Differential Gene Expression in Post-Finasteride Syndrome Patients
Skyler Howell1, Weitao Song2, Alexander Pastuszak3
1Division of Urology, Department of Surgery, University of Texas McGovern Medical School at Houston, Houston, TX, USA.
The Journal of Sexual Medicine
|July 12, 2021
Summary
This study found significant gene expression differences in penile tissue from men with post-finasteride syndrome, suggesting a biological basis for persistent symptoms after using 5-alpha-reductase inhibitors (5ARIs). These findings highlight potential molecular changes contributing to the condition.
Area of Science:
- Molecular Biology
- Genetics
- Endocrinology
Background:
- Post-finasteride syndrome (PFS) involves persistent sexual, neuropsychiatric, and somatic symptoms after 5-alpha-reductase inhibitor (5ARI) use.
- The underlying organic etiology of PFS, particularly neurosteroid changes or androgen receptor alterations, remains debated.
Purpose of the Study:
- To investigate differential gene expression in penile tissue between men with PFS and healthy controls.
- To identify specific biological pathways and genes associated with PFS symptoms.
Main Methods:
- A prospective case-control study involving 26 men with PFS and 26 healthy controls.
- Analysis of gene expression in penile skin cells using samples collected between March 2013 and September 2018.
- Comparison of gene expression profiles, focusing on genes related to neurosteroid levels and androgen receptor activity.
Main Results:
- Significant differences in gene expression were observed, with 1,446 genes over-expressed and 2,318 under-expressed in PFS patients.
- Androgen receptor expression was significantly higher in the PFS group compared to controls.
- No significant differences were found in serum markers of androgen receptor activity or trinucleotide repeats.
Conclusions:
- This study provides evidence of distinct gene expression patterns in patients with PFS, suggesting a biological basis for the syndrome.
- The findings indicate that alterations in gene expression may contribute to the persistent symptoms experienced by some men after 5ARI use.
- Healthcare providers prescribing 5ARIs should be aware of these potential biological differences and counsel patients accordingly.
