the parotid cells in hypocalcemic thyroparathyroidectomized rats still responded to isoproterenol injection by generating the two cyclic amp surges , but they did not initiate dna synthesis unless a blood calcium-elevating combination of parathyroid hormone ( 50 usp units/100 g of body weight ) and 1 alpha,25 ( oh ) 2 vitamin d3 ( 200 pmoles/100 g of body weight ) was injected along with the isoproterenol .
C0020598
hypocalcemic
C0030520
parathyroid hormone