The cornea is a hormone-responsive tissue that responds to changing levels of female sex hormones. This review focuses on the structural and functional changes in the human cornea associated with the hormonal milestones of menarche, pregnancy, and menopause, as well as consequences stemming from the use of exogenous sex hormones for fertility control and replacement. Articles were identified by searching PubMed without language or region restrictions. The primary outcomes evaluated were changes in central corneal thickness (CCT), intraocular pressure (IOP), and quality of the ocular tear film. The potential impact of hormone-associated changes on the diagnosis and surgical management of common eye diseases, as well as the potential use of sex hormones as therapeutic agents is also considered. Understanding the physiological effects of female sex hormones on the cornea is important because that knowledge can shape the management decisions physicians and women face about ocular health across their life stages.
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http://dx.doi.org/10.1186/s12886-023-03085-y | DOI Listing |
Biogerontology
January 2025
Department of Anatomy, College of Medicine, Tzu Chi University, No. 701, Section 3, Zhongyang Rd., Hualien, 970374, Taiwan.
Aging women experience a significant decline of ovarian hormones, particularly estrogen, following menopause, and become susceptible to cognitive and psychomotor deficits. Although the effects of estrogen depletion had been documented in the prefrontal and somatosensory cortices, its impact on somatomotor cortex, a region crucial for motor and cognitive functions, remains unclear. To explore this, we ovariectomized young adult female rats and fed subsequently with phytoestrogen-free diet and studied the effects of estrogen depletion on the somato-sensory and motor cortices.
View Article and Find Full Text PDFEur J Clin Invest
January 2025
Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain.
Background: Steroid hormones are key mediators of adaptative responses to exercise, a stimulus that may concurrently affect their blood concentrations. However, the chronic endocrine adaptations and whether these potential changes are dependent on exercise intensity remain undetermined. Moreover, it is also unknown if the exercise-induced effects on steroid hormonal status are related to the participant' sex.
View Article and Find Full Text PDFNihon Hinyokika Gakkai Zasshi
January 2025
Department of Urology and Renal Transplantation, Yokohama City University Medical Center.
A 35-year-old man visited a local doctor for continuing analysis of his infertility. Semen analysis revealed azoospermia while an ultrasonography detected a right testicular tumor with a diameter of 10 mm. A blood test was negative for tumor markers.
View Article and Find Full Text PDFJ Am Med Dir Assoc
January 2025
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden. Electronic address:
Objectives: We aimed to examine changes in the incidence of injurious falls before, during, and after stroke, and to identify risk factors of injurious falls before and after stroke diagnosis.
Design: Prospective cohort study.
Setting And Participants: Within the Swedish Twin Registry, 4431 participants (aged 66.
Maturitas
January 2025
General Practice/Family Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
The relationships between sex hormone levels and muscle composition in postmenopausal women remain underexplored. To address this gap, we conducted a cross-sectional observational study utilizing data from the Multi-Ethnic Study of Atherosclerosis. Our analysis included 682 postmenopausal women aged 45-84 years with complete data, with a mean age of 63.
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