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Flavones with antibacterial activity against cariogenic bacteria.
Methanolic extracts obtained from 13 plants were studied for their antibacterial activity against cariogenic bacteria. Among them, the extract from Artocarpus heterophyllus showed the most intensiveExpand
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Two xanthones from root bark of Calophyllum inophyllum
Two new xanthones, named caloxanthones A and B, were isolated from the root bark of Calophyllum inophyllum, in addition to known xanthones (macluraxanthone and 1,5-dihydroxyxanthone) andExpand
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Antibacterial activity of some Garcinia benzophenone derivatives against methicillin-resistant Staphylococcus aureus.
Benzophenone derivatives, garcinol (1) and isogarcinol (2) isolated from the pericarps of Garcinia purpurea (Guttiferae), and xanthochymol (3) and a mixture of isoxanthochymol (4) cycloxanthochymolExpand
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Five New Xanthones from Garcinia dulcis
From the bark of Garcinia dulcis, a new xanthone, dulciol A (1), was isolated in addition to two known xanthones [12b-hydroxydes-d-garcigerin (2) and toxyloxanthone B (3)]. Furthermore, from theExpand
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Erythrocyte antioxidant enzymes are reduced in patients with rheumatoid arthritis.
Superoxide dismutase, catalase, and glutathione peroxidase activities were determined in erythrocytes isolated from 17 patients with rheumatoid arthritis (RA) and from 19 with osteoarthritis of theExpand
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Studies of cuticle drugs from natural sources. III. Inhibitory effect of Myrica rubra on melanin biosynthesis.
The inhibitory effect of a 50% ethanolic extract obtained from the dried leaves and the bark of Myrica rubra, was investigated in vitro on melanin biosynthesis which is closely related toExpand
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Study on anti-cataract drugs from natural sources. II. Effects of buddlejae flos on in vitro aldose reductase activity.
The inhibitory effects of nine crude drugs were tested on unpurified rat lens aldose reductase, an enzyme involved in the complications of diabetes. Among the crude drugs, a 70% methanolic extract ofExpand
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Microenvironment of two different extrinsic fluorescence probes in Na+,K+-ATPase changes out of phase during sequential appearance of reaction intermediates.
Na+,K+-ATPase from pig kidney was sequentially modified with N-[p-(2-benzimidazolyl)phenyl]maleimide (BIPM) at Cys-964 and fluorescein isothiocyanate (FITC) at Lys-501. The resulting preparationExpand
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Three New Benzophenone-Xanthone Dimers from the Root of Garcinia dulcis
Investigation of the chemical constituents of the roots of Garcinia dulcis resulted in the isolation of three new benzophenone-xanthone dimers named garciduols A-C (1-3) in addition to a newExpand
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