in the adenohypophysis , the density of receptors for trh was greater in the old than in the young rats ( 23.2 +/- 3.2 vs. 13.7 +/- 1.1 fmol metrh/mg gland ) -- with no change in the affinity constant -- , and the amount of trh detected was larger ( 10.8 +/- 1.8 vs. 2.8 +/- 0.6 pg/mg gland ) , illustrative of an age-related increase in trh accumulation in the pituitary gland .
C0032008
adenohypophysis
C0032005
pituitary gland