Radix ITS
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB35357 | ENA |
REPOSITORIES: ENA
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Project description:Polygoni Multiflori Radix (PMR), Cynanchi Wilfordii Radix (CWR), and Cynanchi Auriculati Radix (CAR) are very popular herbal medicines in Traditional Korean Medicine, Traditional Chinese Medicine, and Kampo Medicine. However, the plant origins, efficacies, and traditional uses of these herbal medicines differ. In Korea, PMR is called Ha Su O (He Shou Wu in China), and CWR is called Baek Ha Su O or Baek Su O (Bai Shou Wu in China). Baek Su O refers to CWR in Korea and CAR in China. CAR has not been used as a traditional herbal medicine, and it cannot be legally used as a food or food ingredient in Korea. However, CAR is cultivated in Korea and imported from China. Because the morphology of CWR and CAR is very similar, they are often confused and misused in Korea. This review discusses the reasons for the confusion and misuse of these substances in Korea and provides the exact plant origins, efficacies, uses, components, and toxicities of PMR, CWR, and CAR so that they can be correctly understood and used.
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Project description:Recent studies have revealed that beta-cell dysfunction is an important factor in developing type 2 diabetes. beta-cell dysfunction is related to impairment of the insulin/IGF-1 signaling cascade through insulin receptor substrate-2 (IRS2). The induction of IRS2 in beta-cells plays an important role in potentiating beta-cell function and mass. In this study, we investigated whether herbs used for treating diabetes in Chinese medicine-Galla rhois, Rehmanniae radix, Machilus bark, Ginseng radix, Polygonatum radix, and Scutellariae radix-improved IRS2 induction in rat islets, glucose-stimulated insulin secretion and beta-cell survival. R. radix, Ginseng radix and S. radix significantly enhanced glucose-stimulated insulin secretion compared to the control, i.e., by 49, 67 and 58%, respectively. These herbs induced the expression of IRS2, pancreas duodenum homeobox-1 (PDX-1), and glucokinase. The increased level of glucokinase could explain the enhancement of glucose-stimulated insulin secretion with these extracts. Increased PDX-1 expression was associated with beta-cell proliferation, which was consistent with the cell viability assay. In conclusion, R. radix, Ginseng radix and S. radix had an insulinotropic action similar to that of exendin-4.
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Project description:BACKGROUND:Radix Glycyrrhizae is the rhizome of Glycyrrhiza inflata Bat., Glycyrrhiza uralensis Fisch. or Glycyrrhiza glabra L. The present paper describes the isolation and the structural elucidation of three new dihydroisocoumarins obtained from the 70% EtOH extract of Radix Glycyrrhizae. And the cytotoxic activities of these new compounds were also evaluated using four cell lines, subsequently. RESULTS:A pair of new dihydroisocoumarin epimers ((3R,4S)-4,8-dihydroxy-3-methyl-1-oxoisochroman-5-yl)methyl acetate (1) and ((3R,4R)-4,8-dihydroxy-3-methyl-1-oxoisochroman-5-yl)methyl acetate (2) along with a new dihydroisocoumarin (3R,4R)-4,8-dihydroxy-3,5-dimethylisochroman-1-one (3) were isolated from Radix Glycyrrhizae. Their structures were elucidated on the basis of chemical and spectral analysis, including 1D, 2D NMR analyses, HR-ESI-MSand ECD calculation comparing with those of experimental CD spectra. Cytotoxic activities of the three compounds were evaluated using the HepG2, A549, LoVo and Hela cell lines, respectively. IC50 values indicated compounds 1-3 exhibited moderate or less cytotoxic activity in vitro. CONCLUSIONS:Dihydroisocoumarin is not the common components in Radix Glycyrrhizae, a series of dihydroisocoumarin were obtained in this plant could be a supplement to the chemical study of this plant.
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