Androgenetic Alopecia in Men: An Update On Genetics.
Level 5 - mechanism / opinion, no new human data
Narrative review summarizing genetic and clinical literature without systematic review methodology or primary data.
PubMed 39119311 · doi:10.4103/ijd.ijd_729_23
What was done
Narrative review summarizing the genetic basis, polygenic inheritance patterns, systemic comorbidities, and management strategies in male androgenetic alopecia (AGA).
What was found
The abstract reports no quantitative data or numerical findings. It notes that AGA follows a polygenic inheritance model, with the androgen receptor (AR) gene on chromosome Xq11-12 being the primary established genetic association. It also describes associations between early-onset AGA and metabolic syndrome components, coronary artery disease, benign prostatic hyperplasia, and prostate cancer.
Why it matters
Highlights the polygenic architecture of male pattern hair loss and emphasizes early-onset AGA as a potential phenotypic marker for metabolic and cardiovascular screening.
Limits
As a narrative review, it lacks a systematic search strategy, quality appraisal of cited studies, and primary human data. No specific effect sizes, odds ratios, or quantitative risk estimates are provided in the abstract.
Cited by
- supports The gene encoding the androgen receptor is located on the X chromosome.