While there is an abundance of pharmacological and biochemical evidence to suggest the existence of multiple opioid receptors, their precise localization within the brain is unclear. To help clarify… (More)
The amzno acid sequences o f the three endogenous opzoid peptzde precursors are known, and the anatomical distribution of the opiozd peptzdes has been studied extensively This report summarizes these… (More)
The distribution of dynorphin in the central nervous system was investigated in rats pretreated with relatively high doses (300-400 micrograms) of colchicine administered intracerebroventricularly.… (More)
The immunocytochemical distribution of [Leu]enkephalin and an adrenal enkephalin precursor fragment (BAM-22P) immunoreactivity was investigated in the diencephalon and brainstem of rats pretreated… (More)
The comparative distribution of Leu-enkephalin and an enkephalin precursor fragment, BAM-22P, was studied in the rat telencephalon using immunocytochemical procedures. Although the enkephalins have… (More)
A dispersed descending pro-opiomelanocortin (POMC) fiber system has been demonstrated by peroxidase-antiperoxidase (PAP) immunocytochemistry in the adult rat spinal cord. beta-endorphin,… (More)
A study of the anatomical distribution of the endogenous opioid dynorphin in rat brain showed that the peptide is localized in a widespread system with multiple cell groups and projections. This… (More)
The immunocytochemical distribution of proopiomelanocortin (POMC) peptides (beta-endorphin, ACTH, alpha-MSH, 16K fragment) was studied in the brain of the rhesus monkey (Macaca mulatta). Some animals… (More)