Polycystic ovarian syndrome: Correlation between hyperandrogenism, insulin resistance and obesity.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanisms and clinical literature without systematic search methodology
PubMed 31733195 · doi:10.1016/j.cca.2019.11.003
What was done
This is a narrative review summarizing existing literature on the interrelated pathophysiological roles of hyperandrogenism, insulin resistance, and obesity in polycystic ovary syndrome (PCOS), as well as pharmacological approaches including oral contraceptives, metformin, pioglitazone, and spironolactone.
What was found
The abstract reports no numerical data, effect estimates, or statistical findings. It qualitatively describes how excess androgens impair granulosa cell function and dominant follicle selection while promoting obesity and insulin resistance. Reciprocally, obesity and insulin resistance worsen hyperandrogenism and associated clinical features (such as hirsutism, acne, and androgenetic alopecia), creating a vicious cycle.
Why it matters
It outlines the interconnected mechanistic pathways linking endocrine dysfunction to metabolic derangements in PCOS, underscoring the rationale for dual-target therapies.
Limits
As a narrative review, it lacks a systematic literature search, formal study quality assessment, and quantitative data synthesis. Specific sample sizes and pooled outcomes are not reported in the abstract.
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