analysis of extracts of the fractions by gel filtration/radioimmunoassay showed that somatostatin-28 represented the predominant molecular form of somatostatin-like immunoreactivity in all cell fractions but the relative proportion of somatostatin-14 ( and related metabolites ) to somatostatin-28 was significantly higher ( p less than 0.05 ) in fractions enriched in villus cells ( fraction 1 and 2 ) than in fractions enriched in crypt cells ( fractions 5-10 ) .
C0037659
somatostatin-14
C0074854
somatostatin-28