In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

 In rats exposed to Cd for 30 d , the levels of urinary excretion of cAMP after treatment with parathyroid hormone ( PTH ) , parathyroidectomy ( PTX ) , or 1 alpha - hydroxycholecalciferol ( 1 alpha - OH - D3 ) showed almost the same patterns as those of control rats : the response of urinary cAMP to treatment with PTH was not influenced by continuous oral administration of Cd .
parathyroid hormone

 This mutant also functions in vivo as a trans - acting dominant negative regulator : the transcriptional inducibility of the HIV long terminal repeat ( which contains two potential NF - kappa B binding sites ) by phorbol ester ( PMA ) is inhibited when it is co - transfected into CD4 + T cells with the delta SP mutant .
CD4 +

 Tumor necrosis factor levels were measured by enzyme - linked immunoabsorbent assay in plasma samples obtained from the hyperthermic isolated limb perfusion circuit and systemic circulation .

Tumor necrosis factor