What does the Science say? Weekly PCOS Literature Review
Every week I will be reviewing and giving critical insights and updates on what has been published in the scientific literature and how it affects you
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Women’s Health Intelligence · PCOS Research Bulletin · March 3, 2026
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59 NEW PCOS PUBLICATIONS THIS WEEK — here’s what you actually need to know.
THIS WEEK’S SIGNAL
1 Ovulation induction does NOT fix the PCOS follicle. A first-of-its-kind single-cell RNA study of follicular fluid shows PCOS ovaries retain chronic inflammation and fibrotic signaling even after successful ovarian stimulation. ⚠ Implications for IVF counseling are immediate.
Biology of Reproduction, March 2026 · PMID 41766605
2 AMH phenotype hierarchy confirmed at scale: 49 studies, 15,535 patients.Phenotype A AMH (11.49 ng/mL) is nearly double Phenotype B (6.25 ng/mL). Polycystic morphology drives AMH more than hyperandrogenism or anovulation alone. But assay chaos continues to undermine clinical use.
Journal of the Endocrine Society, Dec 2025 · PMID 41728213
3 Gut microbiome modulation in PCOS now backed by 26 RCTs. A new meta-analysis of 26 randomized controlled trials shows microbiome-targeting interventions improve hormonal, lipid, and inflammatory markers. This is the largest RCT synthesis in this space to date.
Journal of Ovarian Research, March 2026 · PMID 41776555
ALSO IN THIS WEEK’S FULL REPORT
🔒 Critical breakdown: which PCOS studies this week are fatally flawed — and why
🔒 Epigenetic ferroptosis in granulosa cells — new drug target identified (MBD2)
🔒 Smoking & second-hand smoke: exactly how much worse it makes PCOS — with numbers
🔒 The one biomarker that predicts hirsutism better than testosterone (AUC 0.861)
🔒 Expression of Concern issued for a widely-cited PCOS RCT — are you still citing it?
🔒 5 studies published this week you should not read — and why
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The information provided in this blog post and newsletter is for educational and informational purposes only. It does not constitute medical advice or professional services and should not be used to diagnose or treat any health problem or disease. Always seek the advice of your physician or other qualified health‑care provider regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read here.
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