Molecular vision · 2026
Anti-inflammatory action of fluvoxamine in an endotoxin-induced uveitis rat model: Histopathological evidence.
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Sofu Gülşah Usta, Aşcı Halil, Taşan Şerife, Özkaya Dilek, Garlı Simge
Аннотация
PURPOSE: To investigate the potential protective effects of fluvoxamine (FVX), a selective serotonin reuptake inhibitor with known anti-inflammatory properties, on corneal, limbal, and retinal tissues in a rat model of endotoxin-induced uveitis (EIU), clinical and histopathologic evaluations were performed.
METHODS: Twenty-eight female Wistar Albino rats were divided into four groups: controls, EIU, EIU + FVX, and FVX (n = 7 per group). EIU was induced by a single intraperitoneal injection of lipopolysaccharide (LPS). FVX or normal saline (NS) was administered 30 min before LPS or NS injection. Clinical ocular inflammation was assessed using slit-lamp biomicroscopy 6 h postinjection. Following euthanasia, enucleated eyes were processed for histopathologic analysis of corneal, limbal, and retinal tissues.
RESULTS: Total corneal and epithelial thickness were measured, while limbal and retinal lesions were semiquantitatively graded. The EIU group exhibited significantly increased clinical ocular inflammation scores compared to the control, EIU + FVX, and FVX groups (p < 0.0001 for all). At the microscopical analysis, the EIU group showed significant corneal epithelial thickening, cellular changes, edema, hemorrhage, and increased total corneal thickness compared to the control group (p < 0.001). In addition, histopathologic analysis revealed retinal hyperemia and edema in the EIU group but not in the EIU + FVX, FVX, or control groups. Histopathologic scores confirmed significant retinal changes in the EIU group compared to the others (p < 0.001).
CONCLUSIONS: FVX significantly reduced clinical signs of ocular inflammation and mitigated histopathologic damage in the cornea, limbus, and retina.
METHODS: Twenty-eight female Wistar Albino rats were divided into four groups: controls, EIU, EIU + FVX, and FVX (n = 7 per group). EIU was induced by a single intraperitoneal injection of lipopolysaccharide (LPS). FVX or normal saline (NS) was administered 30 min before LPS or NS injection. Clinical ocular inflammation was assessed using slit-lamp biomicroscopy 6 h postinjection. Following euthanasia, enucleated eyes were processed for histopathologic analysis of corneal, limbal, and retinal tissues.
RESULTS: Total corneal and epithelial thickness were measured, while limbal and retinal lesions were semiquantitatively graded. The EIU group exhibited significantly increased clinical ocular inflammation scores compared to the control, EIU + FVX, and FVX groups (p < 0.0001 for all). At the microscopical analysis, the EIU group showed significant corneal epithelial thickening, cellular changes, edema, hemorrhage, and increased total corneal thickness compared to the control group (p < 0.001). In addition, histopathologic analysis revealed retinal hyperemia and edema in the EIU group but not in the EIU + FVX, FVX, or control groups. Histopathologic scores confirmed significant retinal changes in the EIU group compared to the others (p < 0.001).
CONCLUSIONS: FVX significantly reduced clinical signs of ocular inflammation and mitigated histopathologic damage in the cornea, limbus, and retina.