1,25 - dihydroxycholecalciferol ( 1,25 - ( oh ) 2d3 , 10-100 pm ) , 25-hydroxycholecalciferol ( 25- ( oh ) d3 , 10-100 nm ) , parathyroid hormone ( pth ( 1-84 ) , 0.1-10 nm ) , and prostaglandin e2 ( pge2 , 10-1000 nm ) all induced immediate ( t less than 15 s ) transient increases in [ ca2+ ] i , from a basal level of 135 +/- 8 nm to levels of 179-224 nm .
C0006657
25-hydroxycholecalciferol
C2713074
25