Journal of Neuroscience, Vol 1, 80-82, Copyright © 1981 by Society for Neuroscience
Marked increases in large enkephalin-containing polypeptides in the rat adrenal gland following denervation
RV Lewis, AS Stern, DL Kilpatrick, LD Gerber, J Rossier, S Stein and S Udenfriend
When rat adrenal glands are denervated, large increases in the amounts of
enkephalin and enkephalin-containing polypeptides appear. In the normal
gland, only trace amounts occur. One of the larger polypeptides
(approximately 22,000 daltons) increases rapidly and by 48 hr following
denervation, attains 20 times its original level. At this time, the levels
of free enkephalins are essentially unchanged. By 96 hr, the 22,000-dalton
polypeptide begins to decrease as free enkephalins and intermediate-sized
enkephalin-containing polypeptides increase. This series of events is
consistent with a precursor (22,000-dalton polypeptide)/product
(enkephalin) relationship.