The study of pro-nucleating activity on 33.5 x 10(3) vesicular protein in bile / 中华外科杂志

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the pro-nucleating activity in 33.5 x 10(3) vesicular protein.</p><p><b>METHODS</b>The model biles were established according Kibe and Zhu. The pro-nucleating activity of 33.5 x 10(3) vesicular protein were examined by polarized light microscopy. The protein and its enzymatic deglycosylation and proteolysis fractions nucleation promoting activity were detected by cholesterol crystal growth assay.</p><p><b>RESULTS</b>33.5 x 10(3) vesicular protein displayed apparent potency of pro-nucleation with activity of 0.310, and derived crystal growth curve indices It, Ig, Ic were presented as 0.57, 1.52, 1.63 respectively, but after treated by N-glycanase enzyme and pronase, no promoting activity were found.</p><p><b>CONCLUSION</b>The 33.5 x 10(3) vesicular protein may be involved in the nucleation process of gallstone formation, which is regulated by its peptide and sugar chain.</p>