neither parathyroid hormone ( pth ) 1-34 ( 1 u/ml ) , 1,25- ( oh ) 2-d3 ( 10 ( -8 ) and 10 ( -9 ) m ) , nor interleukin 1 ( il-1 ) ( purified from p388d1 macrophage culture supernatant fluids or recombinant murine il-1-alpha ) ( 100 ng/ml ) stimulated bone resorption in these cultures .
C0021755
interleukin 1
C0600251
recombinant