A new type of chiral monolithic column was successfully developed for the enantioseparation of dansyl amino acids by ligand exchange-capillary electrochromatography (LE-CEC) in this work. The monolithic column matrix was prepared by a sol-gel process and then chemically modified with
Prolactin-releasing peptide (PrRP)-induced secretion of prolactin is not currently considered a primary function of PrRP, but the development of late-onset obesity in both PrRP and PrRP receptor knock-out mice indicates the unique anorexigenic properties of PrRP. In our recent study
Shortage of reliable plasma assays has hampered studies of cholecystokinin (CCK). The assay problems are low plasma concentrations, extensive molecular heterogeneity, and close homology of CCK to gastrin, which circulates in higher concentrations. To develop an accurate CCK RIA, antibodies
Kojic acid-phenylalanine amide (KA-F-NH(2)), which showed an excellent tyrosinase inhibitory activity, did not inhibit melanogenesis in melanocyte due to its low cell permeability. To enhance its cell permeability by increasing lipophilicity, we prepared metal coordination compounds of KA-F-NH(2) and characterized
The semisynthesis of C-terminal peptides of gastrin, calcitonin gene-related peptides (rat and human), and cholecystokinin, or of human neuropeptide Y was achieved by introduction of Phe-NH2 or Tyr-NH2 at their carboxyl termini, respectively. Thermolysin or the related enzyme was used
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