J
Jun Ma
Researcher at Center for Food Safety and Applied Nutrition
Publications - 18
Citations - 1376
Jun Ma is an academic researcher from Center for Food Safety and Applied Nutrition. The author has contributed to research in topics: Tripterygium wilfordii & Momordica. The author has an hindex of 11, co-authored 17 publications receiving 1229 citations. Previous affiliations of Jun Ma include City University of New York & University of Miami.
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Journal ArticleDOI
Medicinal chemistry and pharmacology of genus Tripterygium (Celastraceae).
TL;DR: The main mode of action of the Tripterygium extracts and triptolide is the inhibition of expression of proinflammatory genes such as those for interleukin-2, inducible nitric oxide synthase, tumor necrosis factor-alpha, cyclooxygenase-2 and interferon-gamma.
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Bioactive novel polyphenols from the fruit of Manilkara zapota (Sapodilla).
Jun Ma,Xiao-Dong Luo,Petr Protiva,Hui Yang,Cuiying Ma,Margaret J. Basile,I. Bernard Weinstein,Edward J. Kennelly +7 more
TL;DR: Activity-guided fractionation of a methanol extract from the fruit of Manilkara zapota cv resulted in the isolation of two new antioxidants, methyl 4-O-galloylchlorogenate and 4- O-gallOYlchlorogenic acid, along with eight known polyphenolic antioxidants, namely, methyl chlorogenate, dihydromyricetin, quercitrin, and gallic acid.
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Saponins from the traditional medicinal plant Momordica charantia stimulate insulin secretion in vitro.
TL;DR: The antidiabetic activity of Momordica charantia, Cucurbitaceae, a widely-used treatment for diabetes in a number of traditional medicine systems, was investigated in vitro and stimulated insulin secretion in an in vitro, static incubation assay.
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Anti-inflammatory and immunosuppressive compounds from Tripterygium wilfordii
Jun Ma,Moul Dey,Hui Yang,Alexander Poulev,Reneta Pouleva,Ruth Dorn,Peter E. Lipsky,Edward J. Kennelly,Ilya Raskin +8 more
TL;DR: The extract of Tripterygium wilfordii Hook F. (TwHF), which showed anti-inflammatory and immunosuppressive activities in human clinical trials for rheumatoid arthritis, was subjected to the activity-guided fractionation and spectroscopic characterization of bioactives.
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Antioxidant capacities of ten edible North American plants.
TL;DR: Catechin and epicatechin, potent polyphenolic antioxidants, were identified in the EtOAc extracts of Gaultheria shallon and Sambucus cerulea by reversed‐phase thin‐layer chromatography (TLC) and reversed‐ phase high‐performance liquid chromatography(HPLC).