Adels L E, Leon M, Wiener S G, Smith M S
Physiol Behav. 1986 Jan;36(1):179-81. doi: 10.1016/0031-9384(86)90093-4.
Plasma levels of corticosterone, prolactin and thyroxine (T4) were measured in lactating and non-lactating Norway rats at 22 degrees C and 4 degrees C. Acute cold exposure increased corticosterone secretion in all groups, although non-lactating female levels rose higher than those of mother rats. While prolactin levels are unaffected by acute cold exposure in non-lactating females, mothers with their litters had lower prolactin levels in the cold. T4 levels increased during cold exposure in lactating females, suggesting that the low T4 levels observed during lactation may not be due to lactational competition for available iodine.
在22摄氏度和4摄氏度条件下，对哺乳期和非哺乳期的挪威大鼠的血浆皮质酮、催乳素和甲状腺素（T4）水平进行了测量。急性冷暴露增加了所有组的皮质酮分泌，尽管非哺乳期雌性大鼠的皮质酮水平升高幅度高于母鼠。虽然非哺乳期雌性大鼠的催乳素水平不受急性冷暴露的影响，但带仔母鼠在寒冷环境中的催乳素水平较低。哺乳期雌性大鼠在冷暴露期间T4水平升高，这表明哺乳期观察到的低T4水平可能不是由于泌乳对可用碘的竞争所致。
