TY - JOUR
T1 - An assessment of prolactin's value as an index of stress
AU - Natelson, Benjamin H.
AU - Ottenweller, John E.
AU - Pitman, David
AU - Tapp, Walter N.
N1 - Funding Information:
This work was supported by VA medical research funds. The experiments could not have been done without the excellent technical capabilities of D. Creighton. Wa also thank Dr. A.F. Parlow and the National Pituitary Aqencv for providinq us with NIADDKr eagents.
PY - 1988
Y1 - 1988
N2 - On an every other day basis, chronically catheterized male rats were subjected to a 30 sec grid shock in either an ascending (0.0, 0.25, 1.0, 4.0 mA) or descending order. A third group was repeatedly subjected to 1.0 mA shock over the same time frame. In 85% of the shock trials, plasma prolactin increased from baseline levels, thus indicating that prolactin is a relatively reliable index of stress. However prolactin did not change in a step-wise fashion with stressor intensity for a significant number of rats. Data from the group given repeated exposure to the 1 mA stressor showed no evidence of habituation - a process which might have explained the findings. This study indicates that prolactin levels do not sensitively track stressor intensity for individual rats.
AB - On an every other day basis, chronically catheterized male rats were subjected to a 30 sec grid shock in either an ascending (0.0, 0.25, 1.0, 4.0 mA) or descending order. A third group was repeatedly subjected to 1.0 mA shock over the same time frame. In 85% of the shock trials, plasma prolactin increased from baseline levels, thus indicating that prolactin is a relatively reliable index of stress. However prolactin did not change in a step-wise fashion with stressor intensity for a significant number of rats. Data from the group given repeated exposure to the 1 mA stressor showed no evidence of habituation - a process which might have explained the findings. This study indicates that prolactin levels do not sensitively track stressor intensity for individual rats.
UR - https://www.scopus.com/pages/publications/0023894789
U2 - 10.1016/0024-3205(88)90438-9
DO - 10.1016/0024-3205(88)90438-9
M3 - Article
C2 - 3367683
AN - SCOPUS:0023894789
SN - 0024-3205
VL - 42
SP - 1597
EP - 1602
JO - Life Sciences
JF - Life Sciences
IS - 17
ER -