using a 32p-labeled prepropth cdna probe , pth mrna was measured by gel blot hybridization of total rna from tissue slices incubated for 4 h in low ( 0.5 mm ) or high ( 5 mm ) calcium concentrations and also by dot blot hybridization of cytoplasmic rna extracted from aggregates of partially dispersed cells cultured up to 72 h in low ( 0.4 mm ) , normal ( 1 mm ) , or high ( 3 mm ) calcium concentrations .
C0010834
cytoplasmic
C0007634
cells