Selective brain cooling (SBC) is defined as a brain temperature cooler than the temperature of arterial blood from the trunk. Surrogate measures of arterial blood temperature have been used in many published studies on SBC. The use of a surrogate for arterial blood temperature has the potential to confound proper identification of SBC. We have measured brain, carotid blood, and rectal temperatu...

INTRODUCTION Body temperature measurement in children is of clinical relevance. Although rectal measurement is the gold standard, less invasive tools have become available. We aimed to describe the accuracy of tympanic, infrared skin, or temporal artery scan thermometers compared with rectal measurement to reflect core temperature. METHODS Rectal (Filac 3000; Covidien, Mechelen, Belgium), tym...

Responses to the parenteral administration of a live aroA deletion Salmonella serovar Typhimurium vaccine given to three brown egg layer strains and two broiler strains were studied. Twenty-five birds of each strain were reared together in floor pens to 6 weeks of age and then moved as individual strains to new floor pens and injected with 10(8) colony forming units (CFU) per bird of the vaccin...

background: nowadays there is a strong tendency for early bathing of healthy newborns but little is known about the ther mal stability of newborns in response to early bathing. the aim of this study was to compare the thermal effect of bathing on healthy newborn within 1-2 h of life versus 4-6 h after birth. methods: in this randomized comparative study 100 healthy newborns in a newborn nursery...

The effect of a rapid increase in circulating melatonin on body temperatures and sleepiness was investigated in eight young adults at 1000. Melatonin administered intravenously at 10- and 30-μg doses, but not 3 μg, resulted in elevated plasma and saliva levels consistent with endogenous levels measured in adults at night. Melatonin at 10 and 30 μg significantly attenuated the daytime increase i...

1. The effect on rectal temperature of adrenoceptor blocking agents, injected through a cannula chronically implanted into a lateral cerebral ventricle, was examined in unanaesthetized rabbits, cats and rats, kept at room temperature (19-22 degrees C).2. In rabbits, the alpha-adrenoceptor blocking agent phenoxybenzamine (50 or 100 mug) produced marked hypothermia when injected intraventricularl...

A device was developed to monitor rectal temperature automatically in cattle for application in research settings. Compared with manual measurement of rectal temperature, this device decreases labor and time requirements and allows data collection without the influence of animal handling or restraint. The device consists of a custom-fabricated aluminum tail harness that supports an indwelling r...

Electromagnetic spectra reduce melatonin production and delay the nadirs of rectal temperature and heart rate. Seven healthy men (16-22 yrs) completed 4 permuted sessions. The control session consisted of a 24-hours bedrest at < 30 lux, 18 degrees C, and < 50 dBA. In the experimental sessions, either light (1500 lux), magnetic field (16.7 Hz, 0.2 mT), or infrared radiation (65 degrees C) was ap...