The content of nitrite (final metabolite of nitroradical) was measured in aqueous humor of patients with glaucoma and cataract. The level of NO formation is increased at the initial stage of glaucoma and decreases with the disease progress. A direct correlation between the level of nitrite in aqueous humor and coefficient of easiness of its discharge was detected. Cataract is associated with a high level of nitrite in intraocular fluid. The results are discussed from the viewpoint of ocular hydro--and hemodynamic regulation and NO involvement in the free radical oxidation reactions, playing an important role in the pathogenesis of both diseases.
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Sci Rep
January 2025
Department of Ophthalmology, Peking University Third Hospital, Beijing, China.
This study investigated the content of inflammatory cytokines in the aqueous humor (AH) of cataract patients with type 2 diabetes (T2DM) and explored the effect of metformin on the level of cytokines. AH was collected from patients undergoing phacoemulsification and intraocular lens implantation in Peking University Third Hospital. Levels of cytokines were measured by Cytometric Bead Assay (CBA) Flex Set.
View Article and Find Full Text PDFFront Immunol
January 2025
Microbiology and Cell Science, Institute of Food and Agricultural Science, University of Florida, Gainesville, FL, United States.
Introduction: Recurrent uveitis (RU), an autoimmune disease, is a leading cause of ocular detriment in humans and horses. Equine and human RU share many similarities including spontaneous disease and aberrant cytokine signaling. Reduced levels of SOCS1, a critical regulator of cytokine signaling, is associated with several autoimmune diseases.
View Article and Find Full Text PDFBiochem Genet
January 2025
Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
One in 16, 000 live births is affected by the retinal tumor RB (retinoblastoma), which is frequently found in a child's early years. Both of the RB1 alleles that have been locally mutated in the affected retina are present in 60 percent of cases. Retinoblastoma (RB) can be detected using a variety of techniques, including imaging of the brain and orbits, eye examinations under anesthesia (EUAs), and the discovery of cell-free tumor DNA in samples of aqueous humor or plasma.
View Article and Find Full Text PDFPathogens
January 2025
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', National Reference Center for Brucellosis, 64100 Teramo, Italy.
Rose Bengal antigen and smooth lipopolysaccharide (s-LPS) were produced from a field strain of ("homologous" antigens) and from the reference strain S99 ("heterologous" antigens); they are currently used for the diagnosis of brucellosis in cattle, water buffaloes, sheep, goats, and pigs, as recommended in the Manual of Diagnostic Tests and Vaccines for Terrestrial Animals of the World Organization for Animal Health (WOAH). "Homologous" and "heterologous" antigens were used in a rapid serum agglutination test (Rose Bengal test, RBT) and a competitive ELISA assay (c-ELISA) to test a panel of sera, blood, and other body fluids (cerebrospinal fluid, pericardial fluid, tracheal fluid, and aqueous humor) collected from 71 individuals belonging to five cetacean species (; ; ; ; and ), which were found stranded on the Italian coastline. Six animals were positive for spp.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Department of Ophthalmology, Penn State University, Hershey, PA 17033, USA.
Extracellular vesicles (EVs) are lipid bilayer particles released by virtually all cells, with prominent roles in both physiological and pathological processes. The size, number, and molecular composition of released EVs correlate to the cells of origin, modulated by the cell's environment and pathologic state. The proteins, DNA, RNA, and protein cargo carried by EVs are protected by degradation, with a prominent role in targeted intercellular signaling.
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