A novel thiolysis-high-performance liquid chromatography method for the quantitative determination of total proanthocyanidins and the mean degree of polymerization in grape seeds has been developed. Following thiolysis with formic acid and benzyl mercaptan, reaction products were separated and purified. Three proanthocyanidin monomers and three derivatives were obtained and their structures were identified by liquid chromatography-mass spectrometry, FTIR spectroscopy, and NMR spectroscopy.
View Article and Find Full Text PDFMotilin increases left gastric artery (LGA) blood flow in dogs the endothelial motilin receptor (MLNR). This article investigates the signaling pathways of endothelial MLNR. Motilin-induced relaxation of LGA rings was assessed using wire myography.
View Article and Find Full Text PDFGastroenterol Res Pract
April 2015
Objectives. The presence of motilin receptor in the GI tract of different animal species has been verified. However, the quantitation of motilin receptor expression in different regions of the GI tract remains unclear.
View Article and Find Full Text PDF