Microinjection of morphine into the area of the habenula and dorsal posteromedial thalamus
(H-PMT) produces analgesia for tonic pain as measured by the formalin test in the rat …

Morphine injected into the lateral ventricle of the rat produced unilateral analgesia in the
formalin test, which involves continuous, moderated pain. In contrast, analgesia was …

Analgesia induced by nitrous oxide was examined using radiant heat tail flick and electrical
evoked foot flick tests in rats. Rats exposed to 80 and 60% nitrous oxide expressed …

Morphine alters affective states in humans and produces reinforcement in humans and
animal subjects. Therefore, the present study was designed to determine whether morphine …

We evaluated the participation of nucleus reticularis gigantocellularis (NRGC), a medullary
nucleus that plays an important role in the regulation of nociceptive processes, in the …

The responses of pontomedullary raphe neurons to electrical stimulation of the medullary
reticular formation (MRF) and the mesencephalic ventral periaqueductal gray region (PAG) …

The possible participation of the nucleus reticularis gigantocellularis in the hypotension,
decrease in cardiac contractility and bradycardia induced by guanabenz was examined in …

In pentobarbital anesthetized rats, unilateral microinjection (500 ng) of the selective
perikaryal excitotoxin, kainic acid, into the nucleus ambiguus promoted a significant …

We evaluated possible interactions between angiotensin II (All) or angiotensin Ill (AllI) and
the alpha-2 adrenoceptors of the nucleus reticulans gigantocellulans(NRGC) in the medulla …

In cats anesthetized with α-chloralose and urethane, intravertebral administration of
clonidine (4 and 10 μg/kg) dose-dependently suppressed the jaw-opening reflex, arterial …