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Sayfa 1 itibaren 65 Sonuçlar
Preparative isolation and purification of calycosin from Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao by high-speed counter-current chromatography.
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Calycosin was purified from an ethyl acetate extract of the root of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao by high-speed counter-current chromatography. The separation was performed in two steps with a two-phase solvent system composed of n-hexane-chloroform-methanol-water
[Preparative isolation and purification of calycosin and formononetin from Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao by high-speed counter-current chromatography].
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Preparative high-speed counter-current chromatography (HSCCC) was used for the separation of calycosin and formononetin from the ethyl acetate extract of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao. Calycosin was obtained by HSCCC with a binary phase solvent system composed of
Transcriptional Profiling and Molecular Characterization of Astragalosides, Calycosin, and Calycosin-7-O-β-D-glucoside Biosynthesis in the Hairy Roots of Astragalus membranaceus in Response to Methyl Jasmonate.
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We used the next-generation Illumina/Solexa HiSeq2000 platform on RNA analysis to investigate the transcriptome of Astragalus membranaceus hairy roots in response to 100 μM methyl jasmonate (MeJA). In total, 77,758,230 clean reads were assembled into 48,636 transcripts (average length of 1398 bp),
Combined effects of fangchinoline from Stephania tetrandra Radix and formononetin and calycosin from Astragalus membranaceus Radix on hyperglycemia and hypoinsulinemia in streptozotocin-diabetic mice.
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The anti-hyperglycemic action of Stephania tetrandra Radix (Stephania) is potentiated by Astragalus membranaceus BUNGE Radix (Astragali) in streptozotocin (STZ)-diabetic ddY mice (Tsutsumi et al., Biol. Pharm. Bull., 26, 313 (2003)). Fangchinoline (0.3-3 mg/kg), a main constituent of Stephania,
Phenylalanine ammonia lyase functions as a switch directly controlling the accumulation of calycosin and calycosin-7-O-beta-D-glucoside in Astragalus membranaceus var. mongholicus plants.
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Previously it had been shown that calycosin and calycosin-7-O-beta-D-glucoside (CGs) accumulate in whole plants, mainly in leaves, of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao (A. mongholicus) plants in response to low temperature. In this work, it was demonstrated that the
[Simultaneous determination of formononetin, calycosin and isorhamnetin from Astragalus mongholicus in rat plasma by LC-MS/MS and application to pharmacokinetic study].
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OBJECTIVE
To establish a method to determine the concentration of formononetin, calycosin and isorhamnetin from Astragalus mongholicus in rats' plasma using LC-MS/MS and calculate their pharmacokinetic parameters.
METHODS
The contents of formononetin, calycosin and isorhamnetin in plasma were
The dual roles of calycosin in growth inhibition and metastatic progression during pancreatic cancer development: A "TGF-β paradox".
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In vivo and in vitro antiviral activities of calycosin-7-O-beta-D-glucopyranoside against coxsackie virus B3.
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Calycosin-7-O-beta-D-glucopyranoside (CCGR) is the main isoflavonoid compound isolated from Astragalus membranaceus var. Mongholicu (BGE.) HSIAO, a Chinese herb medicine traditionally used to treat viral myocarditis. In this study, its antiviral activities against coxsackie virus B3 (CVB3) causing
Accumulation of calycosin and its 7-O-beta-D-glucoside and related gene expression in seedlings of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao induced by low temperature stress.
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The changes in calycosin and calycosin-7-O-beta-D-glucoside content as well as the expression of genes involved in their biosynthesis were monitored in roots, stems and leaves of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao seedlings during 10 days of low temperature treatment. The
Calycosin-7-O-β-d-glucopyranoside stimulates osteoblast differentiation through regulating the BMP/WNT signaling pathways.
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The isoflavone calycosin-7-O-β-d-glucopyranoside (CG) is a principal constituent of Astragalus membranaceus (AR) and has been reported to inhibit osteoclast development in vitro and bone loss in vivo. The aim of this study was to investigate the osteogenic effects of CG and its underlying mechanism
Calycosin-7-O-β-D-glucoside promotes oxidative stress-induced cytoskeleton reorganization through integrin-linked kinase signaling pathway in vascular endothelial cells.
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BACKGROUND
Dysfunction of vascular endothelium is implicated in many pathological situations. Cytoskeleton plays an importance role in vascular endothelial permeability barrier and inflammatory response. Many Chinese herbs have the endothelial protective effect, of which, "Astragalus membranaceus"
Pharmaceutical properties of calycosin, the major bioactive isoflavonoid in the dry root extract of Radix astragali.
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BACKGROUND
Radix astragali (Fabaceae astragalus propinquus Schischkin) is a Chinese medicinal herb traditionally used for the treatment of several diseases. Calycosin is the major bioactive chemical in the dry root extract of this medical plant.
OBJECTIVE
This work presents a brief overview of
Ultraviolet irradiation induces accumulation of isoflavonoids and transcription of genes of enzymes involved in the calycosin-7-O-β-d-glucoside pathway in Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao.
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Isoflavonoids are a group of phenolic secondary metabolites found almost exclusively in leguminous plants. Formononetin, calycosin and calycosin-7-O-β-d-glucoside (CG) are isoflavonoid products in the CG pathway. Accumulation of the three isoflavonoids plus daidzein and expression of six genes of
Inhibitory effects of calycosin isolated from the root of Astragalus membranaceus on melanin biosynthesis.
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Tyrosinase is a key enzyme for melanin biosynthesis, and hyperpigmentation disorders are associated with abnormal accumulation of melanin pigments, which can be reduced by treatment with depigmenting agents. A methanol extract of Astragalus membranaceus showed inhibitory activity against mushroom
Chitosan promoting formononetin and calycosin accumulation in Astragalus membranaceus hairy root cultures via mitogen-activated protein kinase signaling cascades.
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Chitosan, behaving as a potent biotic elicitor, can induce plant defense response with the consequent enhancement in phytoalexin accumulation. Accordingly, chitosan elicitation was conducted to promote the production of two phytoalexins, i.e. formononetin and calycosin (also known as
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