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Comparison of protein phosphatase inhibition activities and mouse toxicities of microcystins.
Eight naturally purified microcystins (MCs), including MC-LR, -FR, -WR, -RR, [d-Asp(3)]MC-FR, -WR, -RR, and [Dha(7)]MC-RR were utilized to determine the effects of amino acid substitutions andExpand
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Biochemical Mechanisms and Catabolic Enzymes Involved in Bacterial Estrogen Degradation Pathways.
Estrogens have been classified as group 1 carcinogens by the World Health Organization and represent a significant concern given that they are found in surface waters worldwide, and long-termExpand
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Antioxidant Activity of Some Plant Extracts Towards Xanthine Oxidase, Lipoxygenase and Tyrosinase
Natural products have the potential to be developed into new drugs for the treatment of various diseases. The aim of the present study was to screen the antioxidant activities of some common edibleExpand
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Separation and Determination of Chemical Constituents in the Roots of Rhus Javanica L. Var. Roxburghiana
From the roots of Rhus javanica L. var. roxburghiana, totally thirty-seven known compounds have been isolated and identified. Their structures were elucidated based on their spectral analysis as wellExpand
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An Oxygenase-Independent Cholesterol Catabolic Pathway Operates under Oxic Conditions
Cholesterol is one of the most ubiquitous compounds in nature. The 9,10-seco-pathway for the aerobic degradation of cholesterol was established thirty years ago. This pathway is characterized by theExpand
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A new cytotoxic agent from solid-state fermented mycelium of Antrodia camphorata.
Antroquinonol ( 1), an ubiquinone derivative, was isolated from the solid-state fermented mycelium of Antrodia camphorata (Polyporaceae, Aphyllophorales), a parasitic fungus indigenous to Taiwan. TheExpand
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Antroquinonol from Antrodia Camphorata suppresses breast tumor migration/invasion through inhibiting ERK-AP-1- and AKT-NF-κB-dependent MMP-9 and epithelial-mesenchymal transition expressions.
Antroquinonol (ANQ) is an ubiquinon derivative isolated from the mycelium of Antrodia camphorata. However, the effect of ANQ on breast cancer treatment is unknown. We found that ANQ significantlyExpand
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Triterpene Acids from the Leaves of Planchonella duclitan (Blanco) Bakhuizan
From the methanolic extract of the leaves of Planchonella duclitan, 2α,3α,19α,23-tetrahydroxy-13,27-cyclours-11-en-28-oic acid (1), myrianthic acid (2), 2-hydroxyursolic acid (3), ursolic acid (4),Expand
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The phenolic constituents and free radical scavenging activities of Gynura formosana Kiamnra
Gynura formosana Kiamnra (Compositae) is a herbal folk medicine that is a popular vegetable in Taiwan. The free-radical scavenging activities of a 70% aqueous acetone extract from the herb GExpand
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Isolation and identification of seven microcystins from a cultured M.TN-2 strain of Microcystis aeruginosa
Seven microcystins (MCYSTs), three major and four minor ones, were isolated from a cultured Microcystis aeruginosa strain M.TN-2 isolated from an eel pond in southern Taiwan in the summer of 1993.Expand
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