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The study was conducted to investigate which areas of the brain respond to a painful encounter of minor dermal injury (a model of clinical pain) elicited by intracutaneous injection of a minute amount of ethanol. Four healthy volunteers (27-46 years) were subjected to positron emission tomographic (PET) investigation of regional cerebral blood flow (rCBF), using [ 15 O]butanol as tracer...
A marked expression of the c-fos proto-oncogene has been recently reported in cells of the anterior lobe of the pituitary gland in rats subject to electroacupuncture or noxious thermal stimulation under pentobarbital anaesthesia. The present study was undertaken to identify the activated pituitary cells. Following both kinds of stimulation, most Fos-immunoreactive anterior lobe cells showed colocalization...
High amounts of neurotensin (NT) are found in the preoptic area of the hypothalamus, an area known to be involved in the regulation of body temperature. It is generally believed that NT is a peptide that produces hypothermia, and several sites in the brain have been proposed to mediate NT-induced hypothermia, including the preoptic area. However, the doses of NT used in these experiments were always...
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