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Glossary Estrogenic Activity

ability of a substance to mimic or influence estrogen effects

Estrogenic activity refers to the ability of a substance to mimic or influence the effects of estrogen, a primary female sex hormone, in the body. This can impact various biological processes, including reproductive health, bone density, and hair growth. Substances with estrogenic activity can bind to estrogen receptors and trigger similar responses as natural estrogen, which is why they are significant in both medical treatments and environmental health studies.

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research Catecholaminergic neurons boost fibroblast osteogenic activity in keloid

May 2026 in “Nature Communications”

In this study, researchers identified that keloid fibroblasts respond to neurotransmitters from catecholaminergic nerves by producing bone matrix proteins, mediated by β1-adrenergic receptor activation, leading to fibro-osseous reprogramming; blocking this signaling in a rodent model prevented the development of keloid-like pathology.

research Mechanism of action of bolandiol (19-nortestosterone-3β,17β-diol), a unique anabolic steroid with androgenic, estrogenic, and progestational activities

11 citations , November 2009 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology”

This study found that bolandiol increased lean body mass and bone mineral density in castrate adult male rats, exhibiting tissue selectivity and acting through multiple receptor pathways with less potency compared to other androgens.

research Combined oral contraceptives promote androgen receptor and oestrogen receptor alpha upregulation in the female prostate (Skene’s paraurethral glands) of adult gerbils (Meriones unguiculatus)

3 citations , January 2018 in “Reproduction, Fertility and Development”

This study concluded that cyproterone acetate alone produced antiandrogenic effects on the female gerbil prostate, while ethinyloestradiol alone stimulated estrogenic activity, and their combination led to prostatic lesions.

research Estrogenic Potential of 2-Alkyl-4-(thio)chromenone 6-O-Sulfamates: Potent Inhibitors of Human Steroid Sulfatase

37 citations , September 2003 in “Journal of Medicinal Chemistry”

This study found that compound 2g inhibits steroid sulfatase effectively without exhibiting estrogenic activity, making it a promising candidate for breast cancer treatment.

research Hormonal activity in commonly used Black hair care products: evaluating hormone disruption as a plausible contribution to health disparities

25 citations , May 2021 in “Journal of exposure science & environmental epidemiology/Journal of exposure science and environmental epidemiology”

This study found that hair products commonly used by Black women exhibited hormonal activity, which could impact health outcomes and contribute to health disparities.

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community Muted/dull orgasms explanation?

17 upvotes 1 month ago

Finasteride and dutasteride can cause muted orgasms and reduced sensation, possibly due to hormonal imbalances like increased estrogen or reduced DHT. Some users report improvement by adjusting dosages or stopping the medication.

community Switch from fin to dut and its worse

4 upvotes 1 year ago

Switching from finasteride to dutasteride can worsen hair loss for some men due to increased testosterone levels. Topical treatments like RU58841 and Pyrilutamide are suggested to counteract these effects, but individual responses vary.

community The most nuclear stack possible

45 upvotes 1 year ago

A user humorously suggests an extreme hair loss treatment regimen involving multiple medications and therapies, including Dutasteride, Minoxidil, RU58841, and others, claiming it would prevent hair loss but with potential side effects like gynecomastia. The conversation highlights concerns about safety, side effects, and the effectiveness of such a comprehensive approach.

community How do you keep your bloodsugar low on finasteride?

12 upvotes 2 years ago

Finasteride may affect blood sugar and metabolism, with some users reporting increased blood sugar and changes in body composition. To manage potential side effects, users suggest exercise, intermittent fasting, and dietary adjustments.

community Androsterone as a Neurosteroid Replacement Strategy for 5α-Reductase Inhibitor–Associated Sexual and Affective Dysfunction

in Research/Science 36 upvotes 2 months ago

Androsterone may help with sexual and affective dysfunction from finasteride by replacing disrupted neurosteroids without increasing androgenic side effects. Controlled testing is needed to confirm its effectiveness and safety.

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