background: parathyroid hormone is an 84-amino acid peptide secreted by the parathyroid glands. its physiological role is maintenance of normal serum calcium level and bone remodeling. biological activity of this hormone is related to n-terminal 1-34 amino acids. the recombinant form of hormone (1-34) has been approved for treatment of osteoporosis from 2002. in this study, a novel fusion partn...

Pneumococcal surface protein A (PspA) can elicit protection against Streptococcus pneumoniae in mouse infection models. PspA is classified by serology and amino acid sequence into two major families that are divided by sequence into five clades. The most variable portion of the molecule is the alpha-helical domain, which comprises the N-terminal half of PspA. Prior studies of a family 1 PspA pr...

A rapid and chemoselective method for the N-formylation of structurally diverse anilines with formic acid using nanoalumina sulfonic acid (NASA) at 70oC under solvent-free condition has been developed. The catalyst was found to be compatible with different functional groups and the formylation proceeded smoothly with anilines bearing electron withdrawing as well as electron donating substituents.

PURPOSE This study was performed to examine the effect of exogenous glutathione (GSH) or its precursor amino acids on oxidative injury in cultured human retinal pigment epithelium (RPE). METHODS Cultured human RPE cells were suspended in Krebs-Henseleit medium, and 150 microM t-butylhydroperoxide was added. Cell viability was assessed by 0.2% trypan blue exclusion 30, 60, and 120 minutes afte...