AI Article Synopsis
- The study investigates the impact of sex on ocular surface complications in type 1 diabetic (T1D) rats, focusing on males and females.
- It finds that female T1D rats experience greater severity and earlier onset of eye complications compared to male T1D rats, linked to higher levels of Opioid Growth Factor (OGF) and lower serum estrogen.
- The research highlights significant differences in tear production, corneal sensitivity, and hormone levels between male and female rats across various conditions, suggesting sex-based disparities in diabetic ocular health.
Article Abstract
Diabetes is associated with dysregulation of the Opioid Growth Factor (OGF) - OGF receptor (OGFr) regulatory pathway leading to elevated OGF levels in serum and tissues. This study was designed to investigate the role of sex on the magnitude of ocular surface complications by direct comparison of male and female type 1 diabetic (T1D) rats. Male and female adult Sprague-Dawley rats were rendered T1D; a cohort of T1D male and female rats received insulin (=T1D-INS). Tear production, corneal surface sensitivity, as well as serum levels of estrogen, testosterone, OGF and OGFr were measured. Multivariate analyses were performed for correlations between sex, condition and magnitude of ocular surface alterations. Significant differences were noted in all parameters tested between male and female Normal, T1D, and T1D-INS animals over the 8-week observation period. Multivariate analyses revealed that the magnitude of complications is greater in female T1D rats and has a strong negative correlation with serum estrogen and OGF. Ocular surface complications associated with T1D have an earlier onset and greater magnitude in female T1D rats than male diabetic animals, and are related to elevated levels of OGF.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8184618 | PMC |
| http://dx.doi.org/10.1016/j.physbeh.2021.113436 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Topical review: Ocular surface abnormalities in neurodegenerative disorders.
Optom Vis Sci
January 2025
School of Optometry and Vision Science, UNSW Sydney, Sydney, New South Wales, Australia.
Significance: In an aging population, the number of people living with neurodegenerative disease is projected to increase. It is vital to develop reliable, noninvasive biomarkers to detect disease onset and monitor progression, and there is a growing body of research into the ocular surface as a potential source of such biomarkers.
Background: This article reviews the potential of in vivo corneal confocal microscopy and tear fluid analysis as tools for biomarker development.
Caspase 3/GSDME-Mediated Corneal Epithelial Pyroptosis Promotes Dry Eye Disease.
Invest Ophthalmol Vis Sci
January 2025
Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China.
Purpose: Dry eye disease (DED) is a common ocular surface inflammatory disease with a complex pathogenesis. Herein, the role and effect of gasdermin E (GSDME) in DED pathogenesis were explored.
Methods: In vitro, flow cytometry, Cell Counting Kit-8 (CCK-8) and lactate dehydrogenase (LDH) release assays were used to determine the effects of hyperosmotic stress on pyroptosis, apoptosis, and cell viability in human corneal epithelial cells (HCECs).
Scleral lens wear and fluid reservoir turbidity in eyes with ocular surface disorders.
Ophthalmic Physiol Opt
January 2025
Elite School of Optometry, Medical Research Foundation, Chennai, India.
Purpose: To investigate changes in fluid reservoir turbidity parameters over time and its influence on visual performance in eyes with ocular surface disorders (OSD) wearing scleral contact lenses (SL).
Methods: Thirteen eyes with OSD were assessed for corrected distance visual acuity, contrast sensitivity (CS) and fluid reservoir turbidity using anterior segment optical coherence tomography at baseline, after 5 min and 0.5, 1, 2, 3 and 4 h of SL wear on day 1 and after 1 month.
Could Nocturnal Chronic Hypoxia Cause Ocular Surface Symptoms by Affecting Limbal Epithelial Cells in Patients With Obstructive Sleep Apnea?
Cornea
January 2025
Department of Pulmonology, Trakya University Faculty of Medicine, Edirne, Turkey; and.
Purpose: To investigate the effect of nocturnal chronic hypoxia on the thickness changes of the corneal limbal epithelial area that provides regeneration of the corneal epithelium and ocular surface evaluation parameters in patients with obstructive sleep apnea (OSA).
Methods: All patients diagnosed with OSA and the control group underwent a complete ophthalmological examination, including slit-lamp examination and funduscopy. Tear break-up time, Schirmer test-I, Ocular Surface Disease Index Questionnaire, and anterior segment optical coherence tomography were performed with fluorescein sterile strip for ocular surface evaluation.
Pediatric Scleral Lenses: 21-Year Retrospective Review.
Clin Optom (Auckl)
December 2024
Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, MA, 01609, USA.
Purpose: Retrospective study to review scleral lens outcomes in the pediatric population over a 21-year period, at a single clinical center.
Results: A total of 209 pediatric eyes (108 males and 101 females), distributed between 97 right and 112 left eyes, of which 147 eyes had ocular surface disease and 62 eyes had irregular cornea/refractive conditions, were treated with scleral lenses over a 21-year period. The mean age at the time of treatment initiation was 10.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!