Contact wide-field specular microscopy was performed on eyes of 16 healthy dogs after tissue plasminogen activator at a concentration of 25 micrograms/100 microliters (group 1, n = 8) or 50 micrograms/100 microliters (group 2, n = 8) was injected into 1 anterior chamber of each dog. The contralateral eye served as a nontreated control. Applanation tonometry was used to measure intraocular pressure in both eyes for up to 168 hours. By use of computerized morphometric analysis and pachymetry, changes from baseline values in endothelial cell density, cell morphologic features, and corneal thickness were evaluated at postinjection hours 24, 48, and 168. Significant mean differences in intraocular pressure were not detected between treated eyes of group-1 dogs and those in group 2 at designated times, or between treated and nontreated eyes of dogs in either group. Mean corneal thickness of treated and nontreated eyes was similar in both groups through postinjection hour 168. Changes in mean percentage of endothelial cell sides were observed only in treated eyes of group-2 dogs, with the mean percentage of hexagons at postinjection hour 168 decreasing by 18%, a decrease that was significantly (P less than 0.05) greater than the decrease in nontreated eyes. The mean percentage of 6-sided cells in treated eyes of group-2 dogs was significantly (P less than 0.05) less than that in treated eyes of group-1 dogs at postinjection hour 168.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Corneal Perforation Associated with Pembrolizumab - A Case Report with Literature Review.
Ocul Immunol Inflamm
January 2025
Universiti Malaya Eye Research Centre (UMERC), Department of Ophthalmology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia.
Purpose: To shed light on one of the ocular adverse effects related to pembrolizumab.
Method: Case report and literature review.
Result: A 53-year-old gentleman with underlying Stage III B renal cell carcinoma with lung metastasis and gout presented in June 2021 with bilateral red eyes following Coronavirus disease (COVID-19) vaccination.
Investigating the miRNA-mRNA interactome of human trabecular meshwork cells treated with TGF-β1 provides insights into the pathogenesis of pseudoexfoliation glaucoma.
PLoS One
January 2025
Biomedical Sciences Research Institute, Centre for Genomic Medicine, Ulster University, Coleraine, Northern Ireland, United Kingdom.
Pseudoexfoliation glaucoma is a severe form of secondary open angle glaucoma and is associated with activation of the TGF-β pathway by TGF-β1. MicroRNAs (miRNAs) are small non-coding RNA species that are involved in regulation of mRNA expression and translation. To investigate what glaucomatous changes occur in the trabecular meshwork and how these changes may be regulated by miRNAs, we performed a bioinformatics analysis resulting in a miRNA-mRNA interactome.
View Article and Find Full Text PDFFirst-line glaucoma monotherapy medication patterns in Finland during 1995-2019 based on a population-based study.
PLoS One
January 2025
Faculty of Medicine and Health Technology, Department of Ophthalmology, Tampere University, Tampere, Finland.
Background: The long-term patterns in first-line glaucoma medication are not well established. Exploring these in longitudinal and population-based settings would provide information for the healthcare systems to plan glaucoma care accordingly.
Objective: To evaluate patterns in first-line glaucoma monotherapy in Finland during 1995-2019 based on nationwide survey and register data.
Proteomics Reveals Mechanisms of Delayed Keratoconus Progression: A Study of Corneas Following Two Light-Activated Crosslinking Treatments.
Invest Ophthalmol Vis Sci
January 2025
University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands.
Article Synopsis
- This study investigates the biological changes in rabbit corneas caused by two light-activated corneal stiffening methods: riboflavin with UVA and WST11 with NIR.
- Differentially expressed proteins were identified following treatments, showing RF-D/UVA affected cell metabolism and keratocyte differentiation, while WST-D/NIR influenced extracellular matrix regulation.
- The findings reveal a metabolic shift towards glycolysis in RF-D/UVA treated corneas compared to normal respiration in WST-D/NIR treated corneas, highlighting the distinct biological effects of each treatment.
Systemic TRPV4 inhibition worsens retinal response to acute intraocular pressure elevation in older but not younger mice.
Optom Vis Sci
January 2025
Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria, Australia.
Significance: Previous evidence showed that transient receptor potential vanilloid 4 (TRPV4) inhibition was protective of retinal ganglion cell (RGC) loss after chronic intraocular pressure (IOP) elevation in young animals. However, the role of TRPV4 in mechanosensing IOP changes in the aging eye is not well understood.
Purpose: This study compared the recovery of retinal function and structure after acute IOP elevation in 3- and 12-month-old mouse eyes with and without TRPV4 inhibition.
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!