Evidence map›Paper›PMID 42116018›Full record

ArticleBMC ophthalmology2026

Effects of coenzyme Q10 on retinal inflammation in streptozotocin-induced diabetic rats.

Müberra Akdoğan, Çiğdem Karaca, Hasan Hüseyin Demirel

Abstract read
In one paragraph

Article in BMC ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Müberra AkdoğanDepartment of Ophthalmology, Faculty of Medicine, Afyonkarahisar Health Science University, Afyonkarahisar, 03100, Turkey.ORCID http://orcid.org/0000-0003-4846-312X
Çiğdem KaracaDepartment of Histology and Embryology, Faculty of Medicine, Gaziantep Islam Science and Technology University, Gaziantep, 27220, Turkey. cigdem.karaca@gibtu.edu.tr.ORCID http://orcid.org/0000-0003-2106-2422
Hasan Hüseyin DemirelFaculty of Veterinary Medicine, Afyon Kocatepe University, Afyonkarahisar, 03200, Turkey.ORCID http://orcid.org/0000-0002-4795-2266

Funding

Scientific Research Projects Coordination Unit of Afyonkarahisar Health Sciences University Project No: 19.TIP.008
6 · The paper itself

Abstract

backgroundInflammation, oxidative stress, and apoptosis play important roles in diabetes-induced retinal injury. Coenzyme Q10 (CoQ10) is an endogenous antioxidant involved in mitochondrial energy metabolism and cellular protection. This study aimed to investigate the effects of CoQ10 on diabetes-induced retinal injury in a streptozotocin-induced diabetic rat model.

methodsDiabetes was induced in rats using streptozotocin. The animals were divided into 1- and 2-month experimental groups, each consisting of control, diabetic, CoQ10-treated, and diabetic + CoQ10 groups. CoQ10 was administered via oral gavage at a dose of approximately 30 mg/kg/day. Blood samples were collected for biochemical analysis, and retinal tissues were evaluated using immunohistochemical staining for tumor necrosis factor-alpha (TNF-α), nuclear factor kappa-B (NFκB), Bcl-2-associated X protein (Bax), vascular endothelial growth factor (VEGF), and VEGF receptor (VEGFR).

resultsIn the 2-month experimental group, SOD, GSH, and CAT levels were significantly higher in diabetic rats compared with the diabetic + CoQ10 group. Immunohistochemical analysis showed decreased staining intensities of VEGF, VEGFR, NFκB, and Bax in the diabetic + CoQ10 group compared with the diabetic group at the first month. In the second month, TNF-α, NFκB, and CD45 staining intensities were significantly reduced in the diabetic + CoQ10 group compared with the diabetic group.

conclusionThese findings suggest that CoQ10 may modulate inflammatory, apoptotic, and oxidative stress pathways in diabetes-induced retinal injury. However, the protective effects appear to vary depending on the duration of diabetes. Further studies are required to clarify the potential role of CoQ10 in diabetic retinal disease.

Indexed as

Diabetes Mellitus, ExperimentalDiabetic RetinopathyRetinaRetinitisUbiquinoneVitaminsAnimalsAntioxidantsImmunohistochemistryMaleNF-kappa BOxidative StressRatsRats, Sprague-DawleyTumor Necrosis Factor-alphaVascular Endothelial Growth Factor AAntioxidantscoenzyme Q10NF-kappa BTumor Necrosis Factor-alphaUbiquinoneVascular Endothelial Growth Factor AVitaminsCoenzyme Q10Diabetes mellitusInflammationOxidative stressRetina

Identifiers

PMID42116018
PMCPMC13330338

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.