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Erschienen in: International Ophthalmology 1/2020

27.08.2019 | Original Paper

Effect of rutin on retinal VEGF, TNF-α, aldose reductase, and total antioxidant capacity in diabetic rats: molecular mechanism and ocular pharmacokinetics

verfasst von: Suresh Kumar Gupta, Hanuman Prasad Sharma, Ujjalkumar Das, Thirumurthy Velpandian, Ravi Saklani

Erschienen in: International Ophthalmology | Ausgabe 1/2020

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Abstract

Purpose

The current study was conducted to explore the potential of rutin in preventing sight-threatening diabetic retinopathy.

Methods

Wistar albino rats (either sex) weighing 200–225 g were intraperitoneally injected with 45 mg/kg streptozotocin (pH 4.5). Rats having blood glucose ≥ 300 mg/dL were divided into two groups (n = 8; each group). Group I served as diabetic control and received normal saline p.o. Group II received rutin 50 mg/kg p.o. for 24 weeks. At the end of 24 weeks, retinal fundus and fluorescein imaging were done, rats were killed, and retinal biochemical assessments were conducted. Moreover, ocular pharmacokinetics of rutin was assessed in the normal rats after a single oral dose of 50 mg/kg.

Results

Rutin treatment significantly (p < 0.001) lowered retinal vascular endothelial growth factor, tumor necrosis factor-α, and aldose reductase. Rutin treatment significantly (p < 0.001) elevated the levels of total antioxidant capacity of the retinas. Fundus examination of rutin-treated group showed significantly lower tortuosity index and normal fluorescein angiography. Rutin was detected in the retina as well as in aqueous humor of normal rats.

Conclusion

Rutin treatment significantly arrested the biochemical disturbances of diabetic retinopathy. The distribution of orally ingested rutin in ocular tissues further substantiate its site-specific action.
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Metadaten
Titel
Effect of rutin on retinal VEGF, TNF-α, aldose reductase, and total antioxidant capacity in diabetic rats: molecular mechanism and ocular pharmacokinetics
verfasst von
Suresh Kumar Gupta
Hanuman Prasad Sharma
Ujjalkumar Das
Thirumurthy Velpandian
Ravi Saklani
Publikationsdatum
27.08.2019
Verlag
Springer Netherlands
Erschienen in
International Ophthalmology / Ausgabe 1/2020
Print ISSN: 0165-5701
Elektronische ISSN: 1573-2630
DOI
https://doi.org/10.1007/s10792-019-01165-x

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