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Methylsynephrine

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https://www.readbyqxmd.com/read/27062112/pharmaceutical-doses-of-the-banned-stimulant-oxilofrine-found-in-dietary-supplements-sold-in-the-usa
#1
Pieter A Cohen, Bharathi Avula, Bastiaan Venhuis, John C Travis, Yan-Hong Wang, Ikhlas A Khan
Oxilofrine (4-[1-hydroxy-2-(methylamino)propyl]phenol) is a pharmaceutical stimulant prescribed in dosages of 16 to 40 mg to stimulate the heart and increase blood pressure. It has never been approved for use in the USA as a prescription drug or as a dietary supplement. Several athletes, however, have been banned from sport for testing positive for oxilofrine and have claimed that they inadvertently consumed oxilofrine in sports supplements. Consumption of supplements containing oxilofrine may also pose serious health risks...
April 7, 2016: Drug Testing and Analysis
https://www.readbyqxmd.com/read/26221075/the-small-molecule-r-%C3%AE-o-methylsynephrine-binds-to-nucleoporin-153-kda-and-inhibits-angiogenesis
#2
Nam Hee Kim, Ngoc Bich Pham, Ronald J Quinn, Joong Sup Shim, Hee Cho, Sung Min Cho, Sung Wook Park, Jeong Hun Kim, Seung Hyeok Seok, Jong-Won Oh, Ho Jeong Kwon
R-(-)-β-O-methylsynephrine (OMe-Syn) is a naturally occurring small molecule that was identified in a previous screen as an inhibitor of angiogenesis. In this study, we conducted two animal model experiments to investigate the in vivo antiangiogenic activity of OMe-Syn. OMe-Syn significantly inhibited angiogenesis in a transgenic zebrafish model as well as in a mouse retinopathy model. To elucidate the underlying mechanisms responsible for the antiangiogenic activity of OMe-Syn, we used phage display cloning to isolate potential OMe-Syn binding proteins from human cDNA libraries and identified nucleoporin 153 kDa (NUP153) as a primary binding partner of OMe-Syn...
2015: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/20643105/r-beta-o-methylsynephrine-a-natural-product-inhibits-vegf-induced-angiogenesis-in-vitro-and-in-vivo
#3
Nam Hee Kim, Ngoc Bich Pham, Ronald J Quinn, Ho Jeong Kwon
R-(-)-beta-O-methylsynephrine (OMe-Syn) is an active compound isolated from a plant of the Rutaceae family. We conducted cell proliferation assays on various cell lines and found that OMe-Syn more strongly inhibited the growth of human umbilical vein endothelial cells (HUVECs) than that of other normal and cancer cell lines tested. In angiogenesis assays, it inhibited vascular endothelial growth factor (VEGF)-induced invasion and tube formation of HUVECs with no toxicity. The anti-angiogenic activity of OMe-Syn was also validated in vivo using the chorioallantonic membrane (CAM) assay in growing chick embryos...
August 13, 2010: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/20437283/analysis-of-adulterated-herbal-medicines-and-dietary-supplements-marketed-for-weight-loss-by-dosy-1h-nmr
#4
J Vaysse, S Balayssac, V Gilard, D Desoubdzanne, M Malet-Martino, R Martino
Twenty herbal medicines or dietary supplements marketed as natural slimming products were analysed by diffusion ordered spectroscopy (DOSY) 1H-nuclear magnetic resonance (NMR) and DOSY-COSY 1H-NMR. The method allows analysis of the whole sample with the detection of both active and inactive ingredients in these complex matrices. Among the 20 formulations analysed, two were strictly herbal and four had a composition corresponding to declared ingredients on the packaging or the leaflet. The others were all adulterated...
July 2010: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
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