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• W3081993376 abstract "Alzheimer’s disease is first characterised by memory loss related to the central cholinergic system alteration. Available drugs provide symptomatic treatment with known side effects. The present study is aimed to evaluate the properties of Carissa edulis aqueous extract on a Scopolamine mouse model as an attempt to search for new compounds against Alzheimer’s disease-related memory impairment. Memory impairment was induced by administration of 1 mg/kg (i.p.) of Scopolamine for 7 days, and mice were treated with Carissa edulis aqueous extract. Behavioural studies were performed using T-maze and novel object recognition task for assessing learning and memory and open field test for locomotion. Brain acetylcholinesterase enzyme (AChE) activity was measured to evaluate the central cholinergic system. The level of MDA, glutathione, and catalase activity were measured to evaluate the oxidative stress level. Administration of Scopolamine shows a decrease in learning and memory enhancement during behavioural studies. A significant decrease in the time spent in the preferred arm of T-maze, in the time spent in the exploration of the novel object, and in the discrimination index of the familiar object was also observed. The significant impairment of the central cholinergic system was characterised in mice by an increase of AChE activity to <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mn>2.55</mml:mn><mml:mo>±</mml:mo><mml:mn>0.10</mml:mn></mml:math> mol/min/g with an increase in oxidative stress. Treatment with the different doses of Carissa edulis (62.8, 157, 314, and 628 mg/kg orally administrated) significantly increased the memory of mice in T-maze and novel object recognition tests and also ameliorated locomotion of mice in the open field. Carissa edulis aqueous extract treatment also decreases the AChE activity and brain oxidative stress. It is concluded that administration of Carissa edulis aqueous extract enhances memory of mice by reducing AChE activity and demonstrating antioxidant properties. This could be developed into a novel therapy against memory impairment related to Alzheimer’s disease." @default.
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• W3081993376 date "2020-08-31" @default.
• W3081993376 modified "2023-10-09" @default.
• W3081993376 title "Scopolamine-Induced Memory Impairment in Mice: Neuroprotective Effects of <i>Carissa edulis</i> (Forssk.) Valh (Apocynaceae) Aqueous Extract" @default.
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• W3081993376 doi "https://doi.org/10.1155/2020/6372059" @default.
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