the presence of high affinity receptors for 1,25 ( oh ) 2d3 , the specific internalization of 1,25 ( oh ) 2d3 predominantly into the nuclei , and the significant effects of physiological concentrations of 1,25 ( oh ) 2d3 on cell growth suggest a direct , specific , nuclear effect of 1,25 ( oh ) 2d3 on gr cells .
C0007610
nuclei
C0007634
cells