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alkannin/lithospermum
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9 risultati
Two BAHD acyltransferases catalyze the last step in the shikonin/alkannin biosynthetic pathway
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Several Boraginaceae plants produce biologically active red naphthoquinone pigments, derivatives of the enantiomers shikonin and alkannin, which vary in acyl group numbers on their side chains. Compositions of shikonin/alkannin derivatives vary in plant species, but the mechanisms generating the
Advance in Anti-tumor Mechanisms of Shikonin, Alkannin and Their Derivatives.
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Shikonin, alkannin and their derivatives, the main ingredient of Lithospermum erythrorhizon and Arnebia euchroma (Royle) Johnst native to Inner Mongolian and Northwest of China respectively, hold promising potentials for antitumor effects via multiple-target mechanisms. This review will emphasize
Suppressive effect of β, β-dimethylacryloyl alkannin on activated dendritic cells in an imiquimod-induced psoriasis mouse model.
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OBJECTIVE
To investigate the effect of β, β-dimethylacryloyl alkannin, a main component of Lithospermum erythrorhizon, on activated dendritic cells (DCs) in a psoriasis mouse model.
METHODS
BALB/c mice were used to establish the animal model for psoriasis-like skin lesion; alkannin at 10 mg/kg
Reaction of beta-alkannin (shikonin) with reactive oxygen species: detection of beta-alkannin free radicals.
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beta-Alkannin (shikonin), a compound isolated from the root of Lithospermum erythrorhizon Siebold Zucc., has been used as a purple dye in ancient Japan and is known to exert an anti-inflammatory activity. This study aimed to understand the biological activity in terms of physico-chemical
Shikonin derivatives inhibited LPS-induced NOS in RAW 264.7 cells via downregulation of MAPK/NF-kappaB signaling.
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OBJECTIVE
Shikonin/alkannin (SA) derivatives, analogs of naphthoquinone pigments, are the major components of root extracts of the Chinese medicinal herb (Lithospermum erythrorhizon; LE) and widely distributed in several folk medicines. In the present study, the effect and the underline molecular
Comparative study on enantiomeric excess of main akannin/shikonin derivatives isolated from the roots of three endemic Boraginaceae plants in China.
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This work systematically investigated the enantiomeric excess (e.e.) of main components isolated from the roots of three endemic Boraginaceae plants distributed extensively in China, named Arnebia euchroma (Royle) Johnst (A.e.), Lithospermum erythrorhizon Sieb. et Zucc. (L.e.) and Onosma confertum
Rapid screening, identification, and purification of neuraminidase inhibitors from Lithospermum erythrorhizon Sieb.et Zucc. by ultrafiltration with HPLC-ESI-TOF-MS combined with semipreparative HPLC.
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We put forward an efficient strategy based on bioassay guidance for the rapid screening, identification, and purification of the neuraminidase inhibitors from traditional Chinese medicines, and apply to the discovery of anti-influenza components from Lithospermiun erythrorhizon Sieb.et Zucc.
Synthesis and Evaluation of New Naphthalene and Naphthoquinone Derivatives as Anticancer Agents.
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DNA topoisomerase I inhibitors, both synthetic and of natural origin, are receiving increasing consideration primarily as drugs against refractory tumors. Alkannin and shikonin, two enantiomeric dyes from Alkanna tinctoria and Lithospermum erythrorhizon, have been known over many centuries as
Hybrid de novo genome assembly of red gromwell ( Lithospermum erythrorhizon) reveals evolutionary insight into shikonin biosynthesis
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Lithospermum erythrorhizon (red gromwell; zicao) is a medicinal and economically valuable plant belonging to the Boraginaceae family. Roots from L. erythrorhizon have been used for centuries based on the antiviral and wound-healing properties produced from the bioactive compound
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