Objective: We sought to determine the effects of oral versus transdermal estrogen therapy on platelet function in postmenopausal women.
Methods: Blood obtained from 84 postmenopausal women was tested for closure times using the Platelet Function Analyzer-100 before and after administration of oral or transdermal estrogen for 8 weeks.
Results: Women with normal closure times at baseline (n = 71) demonstrated no significant change after receiving estrogen therapy with oral (n = 29) or transdermal (n = 42) estrogen. Women with borderline closure times of 61 to 66 seconds (n = 13) showed a significant acceleration of closure times (P = 0.0008) after oral estrogen therapy (-6.8 +/- 0.7 seconds, n = 5) but no significant change from baseline after transdermal estrogen therapy (1.1 +/- 0.5 seconds, n = 8).
Conclusions: An acceleration of closure times as measured by the Platelet Function Analyzer-100 in women with borderline baseline closure times is associated with the use of oral, but not transdermal, estrogen therapy. These results suggest that oral estrogen therapy increases platelet reactivity in a subset of women.
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http://dx.doi.org/10.1097/gme.0b013e3181833886 | DOI Listing |
J Lasers Med Sci
November 2024
Vali-E-Asr Reproductive Health Research Center, Family Health Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Genitourinary syndrome of menopause (GSM) is a common complication secondary to estrogen depletion which leads to tissue changes in the female genitourinary tract. Here, we sought to investigate the short- and long-term effects of CO laser therapy on symptoms of GSM in postmenopausal women. In this clinical trial, 47 postmenopausal women with symptoms of GSM were included.
View Article and Find Full Text PDFJ Adv Pract Oncol
July 2024
From Carolina Oncology Specialists, Hickory, North Carolina.
The standard adjuvant treatment of estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative early breast cancer (EBC) is endocrine therapy (ET). Despite this treatment, 20% of patients will have their disease recur. Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors with ET have shown overall survival (OS) benefit in ER-positive, HER2-negative breast cancer in the metastatic setting.
View Article and Find Full Text PDFFEBS Open Bio
January 2025
Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Jinan, China.
Previous studies have suggested that women with higher follicle-stimulating hormone (FSH) levels have a greater incidence of osteoarthritis (OA) compared to women with lower FSH despite normal estrogen levels. Our previous studies also showed that FSH has a negative effect on cartilage in postmenopausal OA. However, no studies have investigated the effect of FSH on the synovium.
View Article and Find Full Text PDFBreast Cancer Res
January 2025
School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK.
Recent evidence indicates that endocrine resistance in estrogen receptor-positive (ER+) breast cancer is closely correlated with phenotypic characteristics of epithelial-to-mesenchymal transition (EMT). Nonetheless, identifying tumor tissues with a mesenchymal phenotype remains challenging in clinical practice. In this study, we validated the correlation between EMT status and resistance to endocrine therapy in ER+ breast cancer from a transcriptomic perspective.
View Article and Find Full Text PDFEstrogens are key hormones that play a vital role in the physiology of the reproductive system in women. However, their therapeutic use in hormonal treatment, contraception, and the treatment of hormone-dependent diseases may be associated with a number of side effects, especially on the liver. This article focuses on the mechanisms of action of estrogens and their potential hepatotoxic effects, as well as risk factors and possible differences between representatives.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!