echinatin/glycyrrhiza

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The effects of echinatin and its related compounds on the mitochondrial energy transfer reaction.

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To investigate the mechanism by which various biological action of licorice root are brought about, the effects of echinatin as a small constituent of Glycyrrhiza echinata and several related compounds on mitochondrial energy transfer reactions were examined. The results obtained were as follows: 1)

Echinatin suppresses esophageal cancer tumor growth and invasion through inducing AKT/mTOR-dependent autophagy and apoptosis

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Esophageal squamous cell carcinoma (ESCC) is one of the most common malignant tumors with poor survival. It is urgent to search for new efficient drugs with good stability and safety for clinical therapy. This study aims to identify potential anticancer drugs from a compound library consisting of

Licochalcone L, an undescribed retrochalcone from Glycyrrhiza inflata roots

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Glycyrrhiza inflata Batalin is among the three glycyrrhizin producing Glycyrrhiza species and can be distinguished from other species with regard to its retrochalcone contents. Seven retrochalcones, echinatin and licochalcones A, C, D, E, K, and L were isolated and characterized from

Schistosomicidal activity and docking of Schistosoma mansoni ATPDase 1 with licoflavone B isolated from Glycyrrhiza inflata (Fabaceae).

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Schistosomiasis is one of the world's major public health problems, and its treatment is widely dependent on praziquantel (PZQ), the only available drug. Schistosoma mansoni ATP diphosphohydrolases are ecto-enzymes localized on the external tegumental surface of S. mansoni and considered an

Induction of stress metabolites in immobilized Glycyrrhiza echinata cultured cells.

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Transfer into a fresh medium or immobilization by entrapment in calcium alginate gels of cultured Glycyrrhiza echinata cells caused a rapid and transient accumulation of a retrochalcone, echinatin, in both the cells and the medium. The higher level and longer duration of echinatin production was

Induction of isoflavonoid and retrochalcone branches of the flavonoid pathway in cultured Glycyrrhiza echinata cells treated with yeast extract.

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Yeast extract-treated suspension cultures of a new cell line, AK-1, of Glycyrrhiza echinata were induced to produce an isoflavonoid phytoalexin (medicarpin) and metabolites of retrochalcone/flavone pathway (echinatin, licodione, and 7,4'-dihydroxyflavone). From these cells, putative full-length

Regulation of retrochalcone biosynthesis: Activity changes of O-methyltransferases in the yeast extract-induced Glycyrrhiza echinata cells.

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Three O-methyltransferases which catalyze S-adenosyl-L-methionine (SAM)-dependent O-methylation of licodione (LMT), flavone/flavonol (FMT), and caffeic acid (CMT) were separated from the callus culture of Glycyrrhiza echinata, and characteristic differences between their pH optima and Mg(2+)

Stimulation of chalcone synthase activity by yeast extract in cultured Glycyrrhiza echinata cells and 5-deoxyflavanone formation by isolated protoplasts.

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Chalcone synthase activity catalyzing the formation of naringenin (5-hydroxyflavanone) was detected in cell suspension cultures of Glycyrrhiza echinata. This activity rapidly increased by treatment of the cells with yeast extract, while non-treated cells showed a constant low activity. Isolated G.

Licochalcone A potently inhibits tumor necrosis factor alpha-induced nuclear factor-kappaB activation through the direct inhibition of IkappaB kinase complex activation.

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Glycyrrhiza inflata has been used as a traditional medicine with anti-inflammatory activity; however, its mechanism has not been fully understood. Licochalcone A is a major and biogenetically characteristic chalcone isolated from G. inflata. Here, we found that licochalcone A strongly inhibited

Licodione Synthase, a Cytochrome P450 Monooxygenase Catalyzing 2-Hydroxylation of 5-Deoxyflavanone, in Cultured Glycyrrhiza echinata L. Cells.

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Cultured Glycyrrhiza echinata L. (Leguminosae) cells produce a retrochalcone echinatin (4,4[prime]-dihydroxy-2-methoxychalcone) and its biosynthetic intermediate licodione [1-(2,4-dihydroxyphenyl)-3-(4-hydroxyphenyl)-1,3-propanedione, a dibenzoylmethane (keto form) or its enol tautomer

Antioxidant and anti-inflammatory activities of six flavonoids separated from licorice.

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Licorice, the roots and rhizomes of several Glycyrrhiza species (Leguminosae), is an important natural sweetening agent and a widely used herbal medicine. In this work, six flavonoids, 5-(1,1-dimethylallyl)-3,4,4'-trihydroxy-2-methoxychalcone (1), licochalcone B (2), licochalcone A (3), echinatin

Glycyrrhiza inflata-derived chalcones, Licochalcone A, Licochalcone B and Licochalcone D, inhibit phosphorylation of NF-kappaB p65 in LPS signaling pathway.

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Licorice root has been used as a traditional medicine for the treatment of gastric ulcer, bronchial asthma and inflammation. Licochalcone A is a major component of Xinjiang licorice, Glycyrrhiza inflata. Previously we showed that Licochalcone A significantly inhibited LPS-induced NF-kappaB

Antioxidative and superoxide scavenging activities of retrochalcones in Glycyrrhiza inflata.

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Licochalcone A, B, C, D and echinatin, retrochalcones isolated from the roots of Glycyrrhiza inflata (licorice), along with an ordinary chalcone isoliquiritigenin, were assessed for their inhibitory activities on lipid peroxidation in various systems and radical scavenging activity. Among those

Nrf2 activators from Glycyrrhiza inflata and their hepatoprotective activities against CCl4-induced liver injury in mice.

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Glycyrrhiza inflata (licorice) has been used to treat liver diseases for a long history. However, the bioactive compounds are still not clear. In this work, 77 compounds, including 9 new ones, were isolated from the EtOAc extract of the roots and rhizomes of G. inflata. The Nrf2 activation

Mode of antibacterial action of retrochalcones from Glycyrrhiza inflata.

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Licochalcone A-D and echinatin, retrochalcones isolated from the roots of Glycyrrhiza inflata, showed antimicrobial activity. Among them, licochalcone A and C had potent activity against some Gram-positive bacteria. These retrochalcones inhibited oxygen consumption in susceptible bacterial cells.

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