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Abstract Title:

Neurorestorative effects of epigallocatechin-3-Gallate on cognitive function in a chronic cerebral hypoperfusion rat model.

Abstract Source:

Restor Neurol Neurosci. 2016 Apr 11 ;34(3):367-77. PMID: 27080069

Abstract Author(s):

Jae-Young Han, Jung-Kook Kim, Jae-Hong Kim, Bong-Seok Oh, Wan-Ju Cho, Young Do Jung, Sam-Gyu Lee

Article Affiliation:

Jae-Young Han

Abstract:

PURPOSE: This study investigated whether (-)-epigallocatechin-3-gallate (EGCG) can enhance cognition by a neurorestorative effect in a rat model of bilateral common carotid artery occlusion (BCCAO).

METHODS: Forty-eight male, 8-week-old Sprague-Dawley rats were randomly allocated to four groups 6 weeks after BCCAO or sham operation: EGCG-single intravenous injection (25 mg/kg/day; SIV group), EGCG-multiple intraperitoneal injection (50 mg/kg/day for 5 days; MIP group), untreated BCCAO group (untreated group), and sham-operated group (sham group).

RESULTS: Escape latency was significantly shorter in the SIV and MIP groups than in the untreated group. SIV and MIP groups were significantly different from the untreated group in the activity of superoxide dismutase and the content of malondialdehyde (p < 0.05). Protein expression level of brain-derived neurotrophic factor was not significantly different between groups (p > 0.05), while protein expression of vascular endothelial growth factor was significantly lower in the SIV group than in the untreated group (p < 0.05). Protein expression of N-methyl-D-aspartate receptor subunits NR1 and NR2B was significantly higher in the MIP group than in the untreated group (p < 0.05).

CONCLUSIONS: EGCG administration at 6 weeks after BCCAO is neurorestorative via an anti-oxidant effect and synaptogenesis, except for angiogenesis.

Study Type : Animal Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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