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Metabolomic and Pharmacologic Insights of Aerial and Underground Parts of Glycyrrhiza uralensis Fisch. ex DC. for Maximum Utilization of Medicinal Resources.

ABSTRACT: The roots of Glycyrrhiza spp. have been utilized in Traditional Chinese medicine (TCM) for thousands of years. Non-traditional (aerial) parts constitute a large portion of the biomass of Glycyrrhiza plants and are mostly discarded after harvesting the roots and rhizomes. Through comparative phytochemical and anti-inflammatory activity analyses, this study explored the potential benefits of the aerial parts of Glycyrrhiza uralensis Fisch. ex DC. as medicinal materials. First, a combined approach based on GC/MS and UHPLC-ESI-QTof MS analysis was adopted for the identification and quantitative examination of medicinally important compounds from G. uralensis. Additionally, a bioassay-guided fractioning of ethanolic extracts of G. uralensis leaf material was performed and its anti-inflammatory activity was tested. The aerial portion of G. uralensis was rich in medicinally important compounds. Two compounds (henicosane-1 and decahydroisoquinoline-2) were found to exert a significant anti-inflammatory effect, inhibiting the release of pro-inflammatory mediators (NO and PGE2) and cytokines (IL-1β, IL6, and TNF-α), without exerting cytotoxic effects. Moreover, both compounds down-regulated iNOS and COX-2 mRNA expression. These results suggest that non-traditional parts of G. uralensis are suitable sources of bioactive metabolites that can be explored for medicinal purposes.

SUBMITTER: Jiang L

PROVIDER: S-EPMC8204184 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Metabolomic and Pharmacologic Insights of Aerial and Underground Parts of Glycyrrhiza uralensis Fisch. ex DC. for Maximum Utilization of Medicinal Resources.

Jiang Liang L Akram Waheed W Luo Biaobiao B Hu Sheng S Faruque Mohammad Omar MO Ahmad Shakeel S Yasin Nasim Ahmad NA Khan Waheed Ullah WU Ahmad Aqeel A Shikov Alexander N AN Chen Jian J Hu Xuebo X

Frontiers in pharmacology 20210601

The roots of Glycyrrhiza spp. have been utilized in Traditional Chinese medicine (TCM) for thousands of years. Non-traditional (aerial) parts constitute a large portion of the biomass of Glycyrrhiza plants and are mostly discarded after harvesting the roots and rhizomes. Through comparative phytochemical and anti-inflammatory activity analyses, this study explored the potential benefits of the aerial parts of Glycyrrhiza uralensis Fisch. ex DC. as medicinal materials. First, a comb ...[more]

PMID: 34140890

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Project description:Glycyrrhiza uralensis Fisch. is known as a common Chinese medicinal herb used to harmonize the effects of other ingredients in most Chinese herbal prescriptions. The rapid production of flavonoids in vitro remains unknown in G. uralensis Fisch. To investigate the in vitro adventitious root regeneration and flavonoid accumulation characteristics in G. uralensis for restrictions on collecting wild plants, suspension cultural and freezing microtomy with histochemical assays were carried out. We reported that multiple adventitious roots were initiated from hypocotyls and stems of G. uralensis. Indole-3-butyric acid (IBA) was more conducive than NAA (1-naphthaleneacetic acid) in inducing G. uralensis adventitious roots, but the addition of 6-BA (6-benzylaminopurine) and KT (kinetin) suppressed the formation of adventitious roots. While the concentration of IBA was 1.0 mg L-1, the flavonoid content and yield were the highest at 19.96 mg g-1 and 1.23 mg g-1, respectively. The optimum medium for adventitious root induction was 1/4-strength Murashige and Skoog's medium containing 0.1 mg L-1 IBA. The content of flavonoids in adventitious roots and apicals cultured in vitro was higher than that in suspension callus, reaching 3.87 times the callus flavonoid content. The histochemical localization of flavonoids showed that G. uralensis flavonoids mainly distributed in the epidermal parenchyma cells of the callus outer layers and gradually accumulated in cell wall and cell gaps of the epidermis and endodermis of adventitious roots along with the primary growth of adventitious roots, indicating that there were no flavonoids in the roots at the early stage of adventitious roots formation. The results showed that calli inducing adventitious roots and apicals for 30 days obtained the highest yield of flavonoid, indicating effective production for flavonoids instead of wild culture. AlCl3 ethanol solution was better than NaOH aqueous solution in terms of chromogenic and localization effects. We concluded that the highest yield of flavonoid and effective production for flavonoid instead of wild culture could be obtained from calli inducing adventitious roots and apicals.

Dataset Information

Metabolomic and Pharmacologic Insights of Aerial and Underground Parts of Glycyrrhiza uralensis Fisch. ex DC. for Maximum Utilization of Medicinal Resources.

Publications

Metabolomic and Pharmacologic Insights of Aerial and Underground Parts of <i>Glycyrrhiza uralensis</i> Fisch. ex DC. for Maximum Utilization of Medicinal Resources.

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