R. Jimenez et al., Preproenkephalin mRNA and enkephalin levels in the adult Syrian hamster: the influence from glucocorticoids, MOL BRAIN R, 66(1-2), 1999, pp. 179-183
Proenkephalin (Penk) gene structure in hamsters and humans are similar but
they differ from rats. Ln this study hamster Penk gene expression was exami
ned after hypophysectomy +/- glucocorticoid receptor blockade with RU 486 (
mifepristone). Zn contrast to rats, basal Penk gene expression in hamster a
drenals did not change after treatments that reduced both the influence fro
m glucocorticoids and phenylethanolamine-N-methyltransferase mRNA levels. M
eanwhile, striatal preproenkephalin mRNA levels increased under these condi
tions. (C) 1999 Elsevier Science B.V. All rights reserved.