Natural inhibitors for acetylcholinesterase and autophagy modulators as effective antagonists for tau and β-amyloid in Alzheimer’s rat model

Theodor Bilharz Research Institute

Bibliographic Information

Authors: Hassan M.; Ismail H.; Hammam O.; Elsayed A.; Othman O.; Aly Hassan S.

Journal: Biomarkers

Publisher: Taylor and Francis Ltd.

Publication Date: 29 January 2023

Volume / Issue: Volume 28 / Issue 3

Pages: 273–288

ISSN: 1354750X

DOI: 10.1080/1354750X.2022.2164617

Scopus: View on Scopus

PubMed: 36594248

Document Type: Article


Authors and Affiliations

Hassan M., Biochemistry Division, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt; Ismail H., Biochemistry Division, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt; Hammam O., Pathology Department, Theodor Bilharz Research Institute, Giza, Egypt; Elsayed A., Pharmacology and Biochemistry Department, Faculty of Pharmacy, British University in Egypt, Al Shorouk City, Egypt; Othman O., Biochemistry Division, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt; Aly Hassan S., Therapeutic Chemistry Department, Pharmaceutical Industries Research Institute, National Research Center, Cairo, Egypt


Abstract

Background: Phytochemicals have amazing biological effects in relation to age-related illnesses and are increasingly being studied in clinical trials. The goal of this study was to examine the effectiveness of the aqueous extracts of Rosmarinus officinalis L. (Rosemary) and Crocus sativus L. (Saffron) and their combinations as tau and β-amyloid antagonists in an Alzheimer’s rat model. Methods: AlCl3 and D-galactose (150 & 300 mg/kg) were used to create the Alzheimer’s neuroinflammation rat model. The animals were subsequently given the two extracts and their combinations (500 mg/kg) along 15 days. The cognitive impairment, oxidative stress, tau & amyloid neuroproteins, acetylcholine, acetylcholinesterase neurotransmitters, proinflammatory cytokines, LC3 as an autophagy marker, computational analysis, and morphological alterations were all assessed. Results: When compared to the conventional donepezil and normal groups, the treated groups showed a significant improvement in all calculated parameters. The cortex and hippocampus have a better morphological appearance. In silico analysis found that these extracts may have an affinity for and impede the activity of some proteins thought to be essential regulators of disease progression. Conclusion: Rosemary and Saffron extracts by the power of their constituents were able to alleviate the neurotoxicity of AlCl3 & D-galactose and regulate the natural autophagy process. © 2023 Informa UK Limited, trading as Taylor & Francis Group.


Keywords

acetylcholinesterase; autophagy; rosemary; saffron; Tau protein; β-amyloid; Alzheimer Disease; Amyloid beta-Peptides; Animals; Galactose; Rats; acetylcholine; aluminum chloride; amyloid beta protein; beta secretase 1; Crocus sativus extract; cyclin dependent kinase 5; cytokine; donepezil; glycogen synthase kinase 3beta; interleukin 6; mitogen activated protein kinase 1; neurotransmitter; Rosmarinus officinalis extract; transcription factor Nrf2; tumor necrosis factor; amnesia; animal cell; animal experiment; animal model; animal tissue; antiinflammatory activity; antioxidant activity; Article; autophagy (cellular); blood sampling; brain cortex; brain tissue; cholinesterase inhibition; cognitive defect; computer model; controlled study; disease exacerbation; down regulation; drug targeting; flow cytometry; hippocampus; histopathology; male; memory disorder; nervous system inflammation; neurotoxicity; nonhuman; oxidative stress; rat; Y-maze test; animal; metabolism


Citation Information

Scopus Citations: 5


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