Ellagic acid: Insights into its neuroprotective and cognitive enhancement effects in sporadic Alzheimer's disease

Pharmacology, Biochemistry, and Behavior
Abhishek B JhaApeksha Shah

Abstract

Sporadic Alzheimer's disease (SAD), an age-associated dementia, is described as neuronal loss and marked cognitive impairment. Ellagic acid (EA) is a phenolic phytoconstituent obtained from grains and fruits, having evident antioxidant effects and known to modulate several endogenous molecular signals in humans in a beneficial way. The current study evaluated the safety profile of EA in the SH-SY5Y human neuroblastoma cell line, performing anti-oxidative effect by DPPH assay, and evaluating anti-AchE (acetylcholinesterase) effect against AchE enzyme from Electrophorus electricus. The observations were further confirmed by in vivo therapeutic effects in streptozotocin (STZ)-induced SAD rats in the context of altered biochemical and behavioral features. Treatment with EA (50 mg/kg, p.o.) for 30 days revealed reduction in STZ (3 mg/kg i.c.v.) prompted SAD and associated biochemical abnormalities in experimental rats which included diminished oxidative stress profile, pro-inflammatory markers i.e. GFAP and CRP; AchE level, and amyloid-β plaque level. Moreover, an elevated level of synaptophysin indicated improved synaptic connectivity, and intact neural architecture showed neuroprotection in the EA group. Furthermore, the behaviora...Continue Reading

Citations

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