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The traditional classification of nonsteroidal anti-inflammatory drugs (NSAIDs) as exclusively 'peripherally acting' agents is no longer valid. For many of these agents there is a growing body of evidence in favour of an additional central mechanism for their anti-inflammatory and analgesic effects. This view is further supported by the recent discovery(More)
Food avoidance learning in the mollusc Pleurobranchaea entails reduction in the responsiveness of key brain interneurons in the feeding neural circuitry, the paracerebral feeding command interneurons (PCNs), to the neurotransmitter acetylcholine (AcCho). Food stimuli applied to the oral veil of an untrained animal depolarize the PCNs and induce the feeding(More)
The authors challenge the general view that the analgesic effect of the nonsteroidal anti-inflammatory drugs (NSAIDs) can be universally attributed to their inhibitory effects on the synthesis of peripherally formed prostaglandins. Analgesic activity by some of these compounds in the reduction of physiological pain elicited by a single noxious stimulus, or(More)
In this review we critically appraise the value of some phasic and tonic nociceptive tests as models for differentiating the antinociceptive effects of opioid agonists. Using heat-evoked withdrawal of the hind paw or tail of a rodent, several early studies have assessed the effects of stimulus intensity upon antinociceptive potency of opioid agonists. After(More)
As part of a citywide effort to increase lead poisoning awareness within the city of Hartford, Connecticut, the Hartford Health Department implemented a multifaceted public health campaign involving several novel elements and partnerships, including the use of municipal sanitation trucks to disseminate lead-poisoning prevention messages throughout the city.(More)
Increased numbers of circulating granulocyte-monocyte precursor cells (CFUc) have been observed in the peripheral blood of man after antineoplastic chemotherapy. We have developed a canine model to study the biologic significance of this phenomenon for hematopoietic reconstitution following hematopoietically lethal exposure to total body irradiation (TBI).(More)
We report the development of a 'second-messenger' model in an attempt to re-evaluate the role of K+ as a desensitising agent. Despite unequivocal validation of the effectiveness of potassium-based dentifrices in the management of dentine hypersensitivity, the mechanism(s) of action of K+ remains unclear. Although experimental paradigms of the Nernst(More)