Androgen Receptor (AR) Gene (CAG)n and (GGN)n Length Polymorphisms and Symptoms in Young Males With Long-Lasting Adverse Effects After Finasteride Use Against Androgenic Alopecia
Cauci, Sabina; Chiriacò, Giovanni; Cecchin, Erika; Toffoli, Giuseppe; Xodo, Serena; Stinco, Giuseppe; Trombetta, Carlo
Sexual Medicine · 5(1):e61-e712017
Abstract (paraphrased)
In 66 PFS patients, short/long (CAG)n and (GGN)n repeat lengths in the androgen receptor gene were associated with different symptom frequencies (libido loss, genital sensitivity changes, muscle tone, skin dryness, etc.), with a U-shaped pattern for some symptoms.
Plain-language summary (paraphrased)
This study looked at whether genes explain why only some finasteride users get lasting symptoms. It found that variations in the length of the androgen receptor gene were linked to which symptoms men developed — suggesting a genetic predisposition that could one day let doctors predict who's at risk before prescribing.
Why it’s in the corpus
The core genetic-susceptibility paper for PFS; directly supports the pharmacogenetic/precision-medicine angle of the corpus.
Some fields on this page come from the release’s Markdown edition, which carries text the JSON edition omits.
Related records
- Conference abstract
Differential Gene Expression in Post-Finasteride Syndrome Patients (Baylor College of Medicine)
Howell, S.; et al.; (Khera, Mohit — senior investigator) · Conference presentation; summarized by PFS Network
RNA microarray of penile skin from 26 PFS patients vs 26 controls found 1,446 genes over-expressed and 2,318 under-expressed; androgen receptor expression was significantly higher in patients, with differentially expressed AR coregulators including…
ARPFS-0082021PFSCore corpus - Community accountAbout Powers’ workSelf-report · N=1
PFS/PSSD: I'm going to try something interesting…
u/various (r/DrWillPowers members) · r/DrWillPowers
A patient with ~3 years of PSSD followed by PFS described Powers' theory back to the community (metabolite backlog → epigenetic androgen-receptor changes → persistent "crash") and proposed a 30-day fast as an experiment: fasting blunts the HPG axis, induces…
ARDWP-0072026PFSPSSDCore corpus - Powers gene claim
AR — upregulated expression (~1.7x, citing Khera); theorized epigenetic silencing in his phenotype
Confidence: interview/direct
Citing Khera's published finding of ~1.7x AR upregulation in PFS cells, Powers theorizes intracellular weak-metabolite crowding blocks potent androgens from binding, and that in extreme cases the body epigenetically silences AR expression — producing…
ARPGL-AR2026-04-29; circa May 2026PFSCore corpus
