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The anti-thrombotic activity of surfactins
윤효인,임종환,박병권,김명석,황미현,이만희,박승춘 대한수의학회 2005 Journal of Veterinary Science Vol.6 No.4
Platelet aggregation was inhibited and the density of platelet-rich plasma (PRP) clots was decreased by the preincubation of PRP with surfactins, an acidic lipopeptide of Bacillus subtilis complex BC1212 isolated from soybean paste, in dose-dependent manner. Our findings suggest that surfactins are able to prevent a platelet aggregation leading to an inhibition of additional fibrin clot formation, and to enhance fibrinolysis with facilitated diffusion of fibrinolytic agents.
윤효인,박승춘,이관복,김창식 충남대학교 수의과대학 동물의과학연구소 1994 動物醫科學硏究誌 Vol.1 No.-
Naproxen(NPX) was administrered to a throrougbred mare in a single oral does. Plasma and urine samples were collected from 1 hour to 144 hours after administration, at varying intervals. The alkali hydrolysis was used for the seperation of glucuronide from the conjugated naproxen and its metabolite in urine. Naproxen and its metabolite desmethylnaproxen (DesNPX) were extracted at pH 4.0 with DCM/ETHETR/HEXAN(1/1/1, v/v/v) and quantitated by HPLC with diode-array-detector. The wavelength of ultraviolet was 235, 254 and 264 nm. The qulification of NPX and DesNPX was performed by gas-chromatograph-mass spectrometry using DB-1 column. Silylation (BSTFA including 1% TMCS) before the analysis of the extracted residue with GC/MSD was carried out for the detection of this drug and its metabolite. The characteristic ions (m/e) of trimethyl Silyated NPX and DesNPX were 73, 185, 302 and 73, 243, 360, respectively.