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Hindawi, BioMed Research International, (2020), p. 1-9, 2020

DOI: 10.1155/2020/8082560

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(-)-cis-Carveol, a Natural Compound, Improvesβ-Amyloid-Peptide 1-42-Induced Memory Impairment and Oxidative Stress in the Rat Hippocampus

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Alzheimer’s disease (AD) could be considered a multifactorial neurodegenerative disorder characterized by the accumulation of theβ-amyloid-peptide (Aβ) within the brain leading to cognitive deficits, oxidative stress, and neuroinflammation. The present work was carried out to investigate the neuroprotective effect of (-)-cis-carveol (1% and 3%, for 21 days) against theβ-amyloid-peptide 1-42- (Aβ1-42-) induced AD. Twenty-five rats were divided into five groups (n=5/group): the first group—control (sham-operated); the second group—Aβ1-42 (1 mM) that received donepezil treatment (5 mg/kg, as the positive reference drug in the Y-maze and the radial arm maze tests); the third group—Aβ1-42 (1 mM); the fourth and fifth groups—Aβ1-42 (1 mM) that received (-)-cis-carveol treatment groups (1% and 3%). The results of this study demonstrated that (-)-cis-carveol improved Aβ1-42-induced memory deficits examined by using Y-maze and radial arm mazein vivotests. Also, the biochemical analyses of the hippocampus homogenates showed that (-)-cis-carveol reduced hippocampal oxidative stress caused by Aβ1-42. Our results suggested that the use of (-)-cis-carveol may be suitable for decreasing AD-related symptoms.