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12 résultats
Xanthones with anti-hepatitis B virus activity from Swertia mussotii.
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Two new xanthones, 8-O-β-D-glucopyranosyl-1-hydroxy-2,3,5-trimethoxyxanthone (1) and 8-O-[β-D-xylopyranosyl-(1 → 6)-β-D-glucopyranosyl]-1-hydroxy-2,3,5-trimethoxyxanthone (2), along with eighteen known xanthones (3-20) were isolated from Swertia mussotii. Their structures were elucidated on the
Mangosteen xanthones suppress hepatitis C virus genome replication.
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Hepatitis C virus (HCV) is a hepatotropic single-stranded RNA virus. HCV infection is causally linked with development of liver cirrhosis and hepatocellular carcinoma. Enhanced production of reactive oxygen species by HCV has been implicated to play an important role in HCV-induced pathogenesis.
Identification of xanthones from Swertia punicea using high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry.
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BACKGROUND
Swertia punicea Hemsl. (Gentianaceae) are used mainly for the treatment of acute bilious hepatitis, cholecystitis, fever, intoxification and jaundice in China, as a traditional Chinese folk medicine. Xanthones as the main chemical components of Swertia punicea have many possible
Cytotoxic Xanthones from Hypericum stellatum, an Ethnomedicine in Southwest China.
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Hypericum stellatum, a species endemic to China, is used to treat hepatitis by several ethnic groups in Guizhou Province. This research was inspired by the traditional medicinal usage of H. stellatum, and aims to explore the phytochemistry and bioactivity of H. stellatum to
The hepatoprotective effect and chemical constituents of total iridoids and xanthones extracted from Swertia mussotii Franch.
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BACKGROUND
Total iridoids and xanthones (TIXS) were extracted from Swertia mussotii Franch, one of the most important eight Tibetan medicines in China, which was recorded in the book of Jingzhu Bencao and used for clinical treatment of cholestatic hepatitis for many years. Our aim was to study the
Enzyme kinetic and molecular docking studies on the metabolic interactions of 1-hydroxy-2,3,5-trimethoxy-xanthone, isolated from Halenia elliptica D. Don, with model probe substrates of human cytochrome P450 enzymes.
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Halenia elliptica D. Don is a Tibetan herb and medicinal preparations containing Halenia elliptica have been commonly used for the treatment of hepatitis B virus infection in China. The metabolism of 1-hydroxy-2,3,5-trimethoxy-xanthone (HM-1) to its metabolites is mediated through cytochrome P450
Two xanthones from Swertia punicea with hepatoprotective activities in vitro and in vivo.
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BACKGROUND
Swertia punicea Hemsl. (Gentianaceae) is more commonly known as "Ganyan-cao" and used mainly as a traditional Chinese folk medicine for the treatment of acute bilious hepatitis, cholecystitis, fever, intoxification and jaundice.
METHODS
The active hepatoprotective constituents of Swertia
Determination and pharmacokinetic study of four xanthones in rat plasma after oral administration of Gentianella acuta extract by UHPLC-ESI-MS/MS.
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BACKGROUND
Gentianella acuta (Michx.) Hulten belonging to the family of Gentianaceae is an annual plant mainly distributed in north of China, Mongolia plateau, Siberia and Far East areas of Russia. The whole herb was used as folk medicine to treat hepatitis, jaundice, headache and fever in Mongolia
New phenolic principles from Hypericum sampsonii.
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Using the anti-hepatitis B virus (HBV)-producing cell line MS-G2 in vitro cultural system-guided screening was performed, and two new benzophenones, 2,6-dihydroxy-4-[(E)-5-hydroxy-3,7-dimethylocta-2,7-dienyloxy]benzophenone (1) and
Ethnopharmacology of Hypericum species in China: A comprehensive review on ethnobotany, phytochemistry and pharmacology.
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Antidiabetic effects of Swertia macrosperma extracts in diabetic rats.
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BACKGROUND
Swertia macrosperma is a traditional folk medicine used for its anti-hepatitis, antipyretic and antidotal effects as "Dida" or "Zangyinchen" in Tibet, Yunnan and Guizhou province for a long time, and it has been reported for its anti-diabetic effects in a Chinese patent. Swertia
Effects of Four Compounds from Gentianella acuta (Michx.) Hulten on Hydrogen Peroxide-Induced Injury in H9c2 Cells.
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In previous studies, Gentianella acuta (Michx.) Hulten was reported to contain xanthones, iridoids, terpenoids, and sterols and is mainly used to cure hepatitis, jaundice, fever, headache, and angina pectoris. In this study, we used bioassay guided fractionation to identify compounds from
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