Volume 45, Issue 12 e13992
ORIGINAL ARTICLE

Niazimicin: A thiocarbamate glycoside from Moringa oleifera Lam. seeds with a novel neuroprotective activity

Eman M. Abdelsayed

Corresponding Author

Eman M. Abdelsayed

School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt

Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt

Correspondence

Eman M. Abdelsayed, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, New Administrative Capital, 11578 Cairo, Egypt.

Email: [email protected] and [email protected]

Contribution: Conceptualization, ​Investigation, Resources, Writing - original draft

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Dalia Medhat

Dalia Medhat

Department of Medical Biochemistry, National Research Centre, Giza, Egypt

Contribution: Formal analysis, Methodology, Writing - review & editing

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Yasmine M. Mandour

Yasmine M. Mandour

School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt

Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt

Contribution: Formal analysis, Software, Writing - original draft

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Rasha S. Hanafi

Rasha S. Hanafi

Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt

Contribution: Project administration, Supervision

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Amira Abdel Motaal

Amira Abdel Motaal

Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt

Contribution: Conceptualization, Supervision, Writing - review & editing

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First published: 07 November 2021
Citations: 20

Abstract

Moringa oleifera (MO) known as the miracle tree is a famous nutritional source in many countries. In this study, the neuroprotective activity of MO seeds was investigated. Fractions of the 70% ethanol seed extract of MO were injected at a dose of 250 mg kg−1 day−1 to albino rats for 15 days, after-which induction of dementia was done using 100 mg/kg AlCl3 over 30 days. Results revealed that all fractions ameliorated the effects of AlCl3 where methylene chloride and ethyl acetate fractions, containing the major bioactive compound niazimicin (NZ), showed the best activities. Biological investigations proved NZ to be a highly potent neuroprotective drug lead as a first report, by causing a decrease in the levels of malondialdehyde, cholinesterase, nitric oxide (NO) and amyloid β by 47%, 34%, 53% and 59%, respectively, and increasing glutathione levels by 54%. Molecular docking studies suggested NZ neuroprotective effects to be mediated by inhibition of caspase-3 and inducible nitric oxide synthase enzymes.

Practical applications

The current findings present the neuroprotective effect of Moringa oleifera seeds consumed as a food supplement and in daily diet. In addition, niazimicin is a promising lead for the development of novel agents against Alzheimer’s disease as seen by the reported results.

CONFLICTS OF INTEREST

The author declares that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.

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