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Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
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Related Experiment Video

Updated: Jun 23, 2026

Ovariectomy and 17β-estradiol Replacement in Rats and Mice: A Visual Demonstration
06:51

Ovariectomy and 17β-estradiol Replacement in Rats and Mice: A Visual Demonstration

Published on: June 7, 2012

Estrogen replacement therapy: indications and complications.

H L Judd, D R Meldrum, L J Deftos

    Annals of Internal Medicine
    |February 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Estrogen replacement therapy (ERT) is controversial in reproductive medicine, used for menopausal symptoms and osteoporosis prevention. Potential risks include cancers and cardiovascular issues, requiring further research, especially regarding skin aging.

    Keywords:
    BiologyBreast CancerCancerCardiovascular EffectsConferences And CongressesDiseasesEndocrine SystemEndometrial CancerEstrogens--administraction and dosageEstrogens--complicationsEstrogens--indicationsEstrogens--pharmacodynamicsHormone ReceptorsHormonesLipid Metabolic EffectsLipidsMenopauseNeoplasmsOvaryPhysiologyReproductionTreatment

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    Last Updated: Jun 23, 2026

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    Published on: January 10, 2025

    Area of Science:

    • Reproductive Medicine
    • Endocrinology
    • Gerontology

    Background:

    • Estrogen replacement therapy (ERT) is a widely debated topic in reproductive medicine.
    • Established indications include managing menopausal symptoms like hot flashes and vaginal atrophy, and preventing osteoporosis.
    • Potential benefits for cardiovascular health and aging skin require further investigation.

    Purpose of the Study:

    • To clarify the role of ERT in aging skin.
    • To review established and potential indications for ERT.
    • To summarize known and suspected complications of ERT.

    Main Methods:

    • Literature review of studies on estrogen replacement therapy.
    • Analysis of clinical evidence for ERT indications and contraindications.
    • Examination of reported adverse events associated with ERT.

    Main Results:

    • ERT is indicated for hot flashes, vaginal atrophy, and osteoporosis prevention.
    • Its role in heart disease prevention is not firmly established.
    • Complications include endometrial and breast cancer, hypertension, hyperlipidemia, and gallbladder disease, potentially linked to hepatic effects.

    Conclusions:

    • Estrogen replacement therapy presents a complex risk-benefit profile.
    • Further research is needed to elucidate ERT's effects on skin aging and cardiovascular health.
    • Careful patient selection and monitoring are crucial due to potential serious complications.