our previous work demonstrated that the inhibition of type i collagen synthesis by 1,25-dihydroxyvitamin d ( 1,25- ( oh ) 2d3 ) in fetal rat calvaria and cultured rat osteosarcoma cells is accompanied by equivalent reduction in steady state levels of alpha 1 ( i ) and alpha 2 ( i ) collagen mrna .
C0041455
type i collagen
C0009325
collagen