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Computational insight to putative anti-acetylcholinesterase activity of Commiphora myrrha (Nees), Engler, Burseraceae: a lessen of archaeopharmacology from Mesopotamian Medicine I.

ABSTRACT: Commiphora spp., Burseraceae family and their resinous matter, myrrh, are used in Mesopotamian medicine as fragrance or antiinsectant. Based on in vitro, leaves, bark, and resin methyl alcohol extract of C. myrrha showed similar inhibitory effects of 17.00, 26.00, and 29.33% for acetylcholinesterase (AChE) as compared to eserine, respectively. The ADMET properties and putative anticholinesterase activity of phytochemicals of myrrh were computationally predicted using in silico tools. Phytochemicals of C. myrrha had acceptable binding affinity (BA) towards principal sites of AChE ranging from -?5.8 (m-cresol) to -?10.5 (abietic acid) kcal/mol. In this regard, all terpenoid compounds (25 out of 28) of myrrh were dual inhibitors since they hydrophobically interacted with both catalytic triad and peripheral anionic site (PAS) of AChE while alpha-terpineol, elemol, and eugenol employed hydrogen bonds with AChE. Cuscohygrine as a pyrrolidine alkaloid has been docked with AChE through hydrogen bonds with PAS and through hydrophobic interactions with catalytic triad thereby we initially proposed it as dual inhibitor of AChE. M-cresol as a methylphenol has been loosely docked with AChE via hydrogen bond and would be a hit molecule for further drug synthesis. This study not only confirmed archaeopharmacological applications of myrrh as antiinsectant or nootropics but also offered an array of terpenoid compounds, cuscohygrine, and m-cresol as a good starting point for hit-to-lead-to-drug optimization phase in synthesis of phyto-nootropics and ecofriendly insecticides.

SUBMITTER: Hussein BA

PROVIDER: S-EPMC6527629 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Computational insight to putative anti-acetylcholinesterase activity of Commiphora myrrha (Nees), Engler, Burseraceae: a lessen of archaeopharmacology from Mesopotamian Medicine I.

Hussein Baydaa Abed BA Karimi Isaac I Yousofvand Namdar N

In silico pharmacology 20190520 1

Commiphora spp., Burseraceae family and their resinous matter, myrrh, are used in Mesopotamian medicine as fragrance or antiinsectant. Based on in vitro, leaves, bark, and resin methyl alcohol extract of C. myrrha showed similar inhibitory effects of 17.00, 26.00, and 29.33% for acetylcholinesterase (AChE) as compared to eserine, respectively. The ADMET properties and putative anticholinesterase activity of phytochemicals of myrrh were computationally predicted using in silico tool ...[more]

PMID: 31114748

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Project description:Commiphora myrrha (Nees) Engl. (C. myrrha) resin is the most Middle Eastern herbal medicine used against numerous diseases. After being decocted or macerated, this resin is widely consumed among Saudi Arabian patients who are already under prescribed medication. Despite its popularity, no studies have been reported on potential modulation effects of these resin extracts on drug metabolism. Therefore, we studied C. myrrha resin extracts on the expression of cytochrome P450 (CYP) drug-metabolizing isoenzyme in human hepatocellular carcinoma cell line HepG2. The C. myrrha extracts were prepared by sonication and boiling, resembling the most popular traditional preparations of maceration and decoction, respectively. Both boiled and sonicated aqueous extracts were fingerprinted using high-performance liquid chromatography equipped with ultra-violet detector (HPLC-UVD). The viability of HepG2 cells treated with these aqueous extracts was determined using CellTiter-Glo® assay in order to select the efficient and non-toxic resin extract concentrations for phase-I metabolic CYP isoenzyme expression analysis. The isoenzyme gene and protein expression levels of CYP 2C8, 2C9, 2C19, and 3A4 were assessed using reverse transcription-quantitative polymerase chain reaction and Western blot technologies. The HPLC-UVD fingerprinting revealed different chromatograms for C. myrrha boiled and sonicated aqueous extracts. Both aqueous extracts were toxic to HepG2 cells when tested at concentrations exceeding 150 µg/ml of the dry crude extract. The CYP 2C8, 2C9, and 2C19 mRNA expression levels increased up to 4.0-fold in HepG2 cells treated with either boiled or sonicated C. myrrha aqueous extracts tested between 1 and 30 µg/ml, as compared with the untreated cells. However, CYP3A4 mRNA expression level exceeded the 2.0-fold cutoff when the cells were exposed to 30 µg/ml of C. myrrha extracts. The up-regulation of CYP mRNA expression levels induced by both boiled and sonicated C. myrrha aqueous extracts was confirmed at the CYP protein expression levels. In conclusion, both sonicated and boiled C. myrrha aqueous extracts modulate CYP 2C8, 2C9, 2C19, and 3A4 gene expression at clinically-relevant concentrations regardless of preparation methods. Further in vitro and in vivo experiments are required for CYP isoenzyme activity assessment and the establishment of herb-drug interaction profile for these traditional medicinal resin extracts.

Dataset Information

Computational insight to putative anti-acetylcholinesterase activity of Commiphora myrrha (Nees), Engler, Burseraceae: a lessen of archaeopharmacology from Mesopotamian Medicine I.

Publications

Computational insight to putative anti-acetylcholinesterase activity of <i>Commiphora myrrha</i> (Nees), Engler, Burseraceae: a lessen of archaeopharmacology from Mesopotamian Medicine I.

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