James O'Hara sits down with Dr Dan Bristow (OB-GYN) to talk about hormones
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Systematic and Narrative Reviews
1. Gut microbial β‑glucuronidase: a vital regulator in female estrogen metabolism and gynecologic cancers
PMCID: PMC10416750
• Year: 2023
• Journal: International Journal of Molecular Sciences
• Summary: Reviews role of β-glucuronidase in estrogen metabolism, breast cancer, endometriosis.
2. A New Paradigm in Gut Microbiota & Breast Cancer: β‑Glucuronidase as Therapeutic Target
DOI: 10.3390/pathogens12091086
• Year: 2023
• Journal: Pathogens
• Summary: Emerging model proposing gmGUS as a direct target in estrogen-driven breast cancer.
3. Gut and oral microbiota in gynecologic cancers: mechanisms and therapeutic value
DOI: 10.1038/s41522-024-00577-7
• Year: 2024
• Journal: npj Biofilms and Microbiomes
• Summary: Systematic review on microbiota’s role in ovarian, cervical, and breast cancers.
Human Clinical or Case-Control Studies
4. Assessment of gut microbial β‑glucuronidase and β‑glucosidase activity in women with PCOS
PMCID: PMC10366212
• Year: 2023
• Journal: Scientific Reports
• Summary: Found significantly higher β-glucuronidase activity in PCOS patients.
5. Gut microbiota and ovarian diseases: a new therapeutic perspective
DOI: 10.1186/s13048-025-01684-5
• Year: 2025
• Journal: Journal of Ovarian Research
• Summary: Review covering PCOS, POI, and tumors—describes estrogen recycling via gut microbiota.
Mechanistic, In Vitro, and Animal Studies
6. In vitro analysis of gut microbial β‑glucuronidases and estrogen deconjugation
DOI: 10.1016/j.jbc.2020.105542
• Year: 2020
• Journal: Journal of Biological Chemistry
• Summary: Characterized 35 GUS enzymes that reactivate estrogen glucuronides.
7. Impact of intestinal flora on ovarian function and disease pathogenesis
Full text: e-century.us
• Year: 2024
• Journal: American Journal of Translational Research
• Summary: Animal studies showing how β-G-producing gut bacteria drive ovarian dysfunction.
8. The role of gut microbiota in endometriosis: current insights
DOI: 10.3389/fmicb.2024.1363455
• Year: 2024
• Journal: Frontiers in Microbiology
• Summary: Mechanistic review linking β-G-producing bacteria to lesion development and inflammation in endometriosis.
#female #femalehealth #hormones #testosterone
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