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Abstract Title:

Ingestion of IH636 grape seed proanthocyanidin extract to prevent selenite-induced oxidative stress in experimental cataract.

Abstract Source:

J Cataract Refract Surg. 2006 Jun;32(6):1041-5. PMID: 16814068

Abstract Author(s):

Ali H Durukan, Cem Evereklioglu, Volkan Hurmeric, Hurkan Kerimoglu, Cuneyt Erdurman, M Zeki Bayraktar, Tarkan Mumcuoglu

Article Affiliation:

Department of Ophthalmology, Gülhane Military Medical Academy, Ankara, Turkey. ahakand@yahoo.com

Abstract:

PURPOSE: To investigate whether dietary supplementation with IH636 grape seed proanthocyanidin extract (GSPE) prevents selenite-induced cataract. SETTING: Department of Ophthalmology, Gulhane Military Medical Academy, Ankara, Turkey. METHODS: Thirty Spraque-Dawley rat litters were put randomly into 3 groups. In group 1 (n = 10), sodium selenite (30 nmol/g body weight) was injected subcutaneously on postpartum day 10. In group 2 (n = 10), sodium selenite (30 nmol/g body weight) was injected on postpartum day 10 and oral GSPE (100 mg/kg body weight) was given for 1 week after sodium selenite injection. Only subcutaneous saline was injected in group 3 (control, n = 10). The development of cataract was assessed for 3 weeks, and its density was graded and photographed with a slitlamp. Removed rat lenses were analyzed for glutathione (GSH) and malondialdehyde (MDA). RESULTS: All of the rats in group 1 had cataract between stage 6 and stage 3. In group 2, only 5 of 10 eyes had cataract between stage 3 and stage 2 and no cataract occurred in the remaining 5 rats. The difference between mean cataract stages in group 1 and group 2 was significant (P<.05). The mean GSH level in group 1 was significantly lower than in group 2 and controls (P<.05). The mean MDA level in group 1 was significantly higher than in group 2 and controls (P<.05). CONCLUSIONS: IH636 grape seed proanthocyanidin extract effectively suppressed cataract formation in rats. Routine consumption of grape seed proanthocyanidin extract in the form of food or dietary supplement may offer a prophylactic measure against onset and progression of cataract.

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Sayer Ji
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