Showing papers by "Tom J. Mabry published in 2006"
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TL;DR: A phytochemical investigation of the aerial parts of Chrysothamnus viscidiflorus afforded three new compounds and seven known compounds, including five sesquiterpenes, two cinnamic acid derivatives, two ketoalcohol derivatives and one coumarin glucoside, which showed anti-cancer activity against human breast cancer cells.
25 citations
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TL;DR: The chloroform extract showed the highest antiinflammatory activity in both acute and chronic models, while the ulcerogenic effects of all tested extracts were found to be less than that of acetyl salicylic acid.
19 citations
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TL;DR: Results indicated that 4 possessed the highest anti-tumor, immunoproliferative, macrophage proliferation, anti-inflammatory, and antioxidant activities.
Abstract: Phytochemical and biological investigation of the leaves of Cassia petersiana afforded two new chromones (1, 2), in addition, to the known glyceryl-1-hexacosanoate (3) and stigmasterol-3-O-β-D-gluc...
16 citations
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TL;DR: In this paper, Llave et al. used the ABTS+ [2,2′-azinobis(3-ethylbenzothiazolone-6-sulfonic acid)] free radical to scavenge quercetin and its 3-O.-rutinoside, ethyl acetate and ethanol extracts, and two new flavones from Casimiroa edulis.
Abstract: In the present current, quercetin and its 3-O.-rutinoside, the ethyl acetate and ethanol extracts, and two new flavones from Casimiroa edulis. Llave et Lex (Rotaceae) were tested for their antioxidant activity via scavenging by the ABTS˙+ [2,2′-azinobis(3-ethylbenzothiazolone-6-sulfonic acid)]free radical. Among all the tested fractions and compounds, the ethanol extract exhibited the strongest antioxidant activity followed by EtOAc extract, giving 842 and 712 µM Trolox equivalents/g dry weight, respectively. Moderate activities were detected for the other tested materials. The two new flavones were identified as 5-methoxy-6-hydroxyflavone and its 6-O.-β.-D-glucoside. The structure elucidation was based on UV, electrospray ionization mass spectrometry (ESIMS), 1H and 13C NMR, proton-proton correlation spectroscopy (1H-1H COSY), distortionless enhancement by polarization transfer (DEPT), heteronuclear single quantum coherence (HSQC), and heteronuclear multiple bond correlations spectrum (HMBC).
13 citations
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TL;DR: In the course of chemotaxonomic studies of the genus Silphium two new and six known flavonol glycosides were isolated from the leaves of S. albiflorum as mentioned in this paper.
Abstract: In the course of chemotaxonomic studies of the genus Silphium two new and six known flavonol glycosides were isolated from the leaves of S. albiflorum. The structures of the new flavonoids were est...
7 citations