Context And Objective:: The relationship between sex hormones and asthma has been evaluated in several studies. The aim of this review article was to investigate the association between asthma and female sex hormones, under different conditions (premenstrual asthma, use of oral contraceptives, menopause, hormone replacement therapy and pregnancy).
Design And Setting:: Narrative review of the medical literature, Universidade Federal do Tocantins (UFT) and Universidade Federal de São Paulo (Unifesp).
Methods:: We searched the CAPES journal portal, a Brazilian platform that provides access to articles in the MEDLINE, PubMed, SciELO, and LILACS databases. The following keywords were used based on Medical Subject Headings: asthma, sex hormones, women and use of oral contraceptives.
Results:: The associations between sex hormones and asthma remain obscure. In adults, asthma is more common in women than in men. In addition, mortality due to asthma is significantly higher among females. The immune system is influenced by sex hormones: either because progesterone stimulates progesterone-induced blocking factor and Th2 cytokines or because contraceptives derived from progesterone and estrogen stimulate the transcription factor GATA-3.
Conclusions:: The associations between asthma and female sex hormones remain obscure. We speculate that estrogen fluctuations are responsible for asthma exacerbations that occur in women. Because of the anti-inflammatory action of estrogen, it decreases TNF-α production, interferon-γ expression and NK cell activity. We suggest that further studies that highlight the underlying physiopathological mechanisms contributing towards these interactions should be conducted.
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http://dx.doi.org/10.1590/1516-3180.2016.011827016 | DOI Listing |
Sci Rep
January 2025
Division of Hematology and Oncology, University of California, 1450 3rd Street, San Francisco, CA, 94143, USA.
For individuals at high risk of developing breast cancer, interventions to mitigate this risk include surgical removal of their breasts and ovaries or five years treatment with the anti-estrogen tamoxifen or aromatase inhibitors. We hypothesized that a silicone based anti-estrogen-eluting implant placed within the breast would provide the risk reduction benefit of hormonal therapy, but without the adverse effects that limit compliance. To this end, we demonstrate that when placed adjacent to mammary tissue in the 7,12-dimethylbenz[a]anthracene-induced rat breast cancer model a fulvestrant-eluting implant delays breast cancer with minimal systemic exposure.
View Article and Find Full Text PDFBackground: The purpose of this retrospective study was to determine the effect of surgical operation, age at surgery, sex hormones, and anesthesia modality on the risk of dementia in both sexes.
Methods: Data of females aged between 30 and 70 years old who were diagnosed with dysmenorrhea and underwent hysterectomy/myomectomy or without surgery, and males with benign prostate hyperplasia (BPH) with or without transurethral resection of the prostate (TURP) were identified from the National Health Insurance Research Database 2000-2016. The effect of age at surgery, surgery type, and anesthesia modality on dementia risk was assessed using Cox regression analyses.
Environ Res
January 2025
Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University. Zhengzhou, Henan, China. Electronic address:
This study investigates the association between prenatal exposure to dioxin-like polychlorinated biphenyls (DL-PCBs) and glucocorticoid and androgenic hormone levels in cord blood. We analyzed cord blood samples from 500 mother-infant pairs from China (2022-2023), focusing on hormones including cortisol, cortisone, dehydroepiandrosterone (DHEA), and androstenedione. The main analysis revealed significant reductions in cortisol levels with increased exposure to PCB-77 (β = -3.
View Article and Find Full Text PDFKidney Int
January 2025
Department of Critical Care, King's College London, Guy's & St Thomas' Hospital, London, UK.
Sex differences exist in acute kidney injury (AKI), and the role that sex and gender play along the AKI care continuum remains unclear. The 33 Acute Disease Quality Initiative meeting evaluated available data on the role of sex and gender in AKI and identified knowledge gaps. Data from experimental models, pathophysiology, epidemiology, clinical care, gender, social determinants of health, education, and advocacy were reviewed.
View Article and Find Full Text PDFAm J Obstet Gynecol
January 2025
Women's Health, Aabenraa, University Hospital of Southern Denmark; Institute of Regional Health Research, University of South Denmark.
Background: Sex cord-stromal cell tumors (SCST) are rare tumors of the ovary. Some of the SCSTs secrete hormone originating from the sex or stromal cell of the ovaries. Previous studies have indicated an increased risk of breast and endometrial cancers.
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