Role of catecholamines in thyroxine-induced changes in metabolism and body temperature during exercise in dogs

Summary Blockade of beta receptors inhibited thyroxine-induced increases in T_re, blood FFA and LA levels during exercise in dogs.     

5-hydroxytryptamine induced changes in body temperature of newborn kittens and guinea-pigs and the effect of indomethacin thereon

Summary During the first days of life 10 g i.c.v. 5-HT evoked a primary, short-lasting hyperthermia in kittens and hypothermia in guinea-pigs. In both species, a secondary late hyperthermia occurred that could be prevented by indomethacin pretreatment.     

5-hydroxytryptamine induced changes in body temperature of newborn kittens and guinea-pigs and the effect of indomethacin thereon

During the first days of life 10 microgram i.c.v. 5-HT evoked a primary, short-lasting hyperthermia in kittens and hypothermia in guinea-pigs. In both species, a secondary late hyperthermia occurred that could be prevented by indomethacin pretreatment.     

Periodicity in body temperature in man

Summary Body temperatures and self-assessed mood scales were recorded for 7 weeks or more by male volunteers. Auto-correlations of temperatures from the 21 subjects show evidence of a significant peak at the 20-day-interval. The self-assessed measure of Alertness (from 18 of them) also shows some evidence of rhythmicity, at the 22-day-period.     

Relation between the chick electroretinogram and body temperature

Zusammenfassung Untersuchung der Beziehung zwischen ERG und Körpertemperatur bei Küken ergab Abnahme derb-Wellen bei Verminderung der Rektaltemperatur, ohne Beeinflussung der Amplitude dera-Welle.     

Opposing temperature responses to intrahypothalamic injections of 5-hydroxytryptamine in the pigeon exposed to cold

Summary 5-Hydroxytryptamine injected into posterior and anterior parts of the pigeon hypothalamus evoked a short lasting hyperthermia or hypothermia, respectively. Variable responses obtained within the same brain region suggest the existence of different 5-HT systems, even in rather limited hypothalamic areas.     

Involvement of tissue monoamine and plasma FFA concentrations in the responses of the pigeon to changes of photoperiod

Summary A deviation of the length of photophase from the rhythm of 12L12D induced monoamine accumulation in diencephalon and pancreas. A short photophase increased plasma FFA. The results suggest that photoperiodism is a stronger modulator of catecholamines and lipid metabolism than changes in ambient temperature (Ta).Acknowledgment. The support of Emil Aaltonen foundation (to E.H.) and the Finnish Ministry of Education (to A.H.) is gratefully acknowledged.     

Opposing temperature responses to intrahypothalamic injections of 5-hydroxytryptamine in the pigeon exposed to cold.

5-Hydroxytryptamine injected into posterior and anterior parts of the pigeon hypothalamus evoked a short lasting hyperthermia or hypothermia, respectively. Variable responses obtained within the same brain region suggest the existence of different 5-HT systems, even in rather limited hypothalamic areas.     

Hormonal body temperature regulation in passive and active hyperthermia

Zusammenfassung Geraten Tiere durch abnorm hohe Umgebungstemperatur in einepassive Hyperthermie, so kann, wie man weiß, in ihrem Blutserum das oxydationshemmende Schilddrüsenhormon (Thermothyrin A) nachgewiesen werden. Wird dagegen durch Wärmestich eineaktive Hyperthermie hervorgerufen, dann läßt sich in den Seren der fiebernden Tiere keine stoffwechseldämpfende Substanz nachweisen. Dieser Befund ist ein weiterer, in das Kapitel «hormonale Wärmeregulierung» gehörender Beitrag zur Frage der Verschiedenheit von aktiver und passiver Hyperthermie.     

Mortality effects of temperature changes in the United Kingdom

Temperature changes are known to affect the social and environmental determinants of health in various ways. Consequently, excess deaths as a result of extreme weather conditions may increase over the coming decades because of climate change. In this paper, the relationship between trends in mortality and trends in temperature change (as a proxy) is investigated using annual data and for specified (warm and cold) periods during the year in the UK. A thoughtful statistical analysis is implemented and a new stochastic, central mortality rate model is proposed. The new model encompasses the good features of the Lee and Carter (Journal of the American Statistical Association, 1992, 87: 659–671) model and its recent extensions, and for the very first time includes an exogenous factor which is a temperature‐related factor. The new model is shown to provide a significantly better‐fitting performance and more interpretable forecasts. An illustrative example of pricing a life insurance product is provided and discussed.     

Interaction of spinal and hypothalamic thermodetectors in body temperature regulation of the conscious dog

Zusammenfassung An wachen Hunden wurden kombinierte thermische Reizungen von Rückenmark und Hypothalamus bei verschiedenen Lufttemperaturen durchgeführt. Die Untersuchungen führten zu dem Ergebnis, dass die thermischen Afferenzen aus Rückenmark, Hypothalamus und Haut in einem gemeinsamen Zentrum zu einer koordinierten effektorischen Leistung des temperaturregulierenden Systems verarbeitet werden. Die Funktion der hypothalamischen und der spinalen thermosensiblen Strukturen erwies sich dabei als völlig gleichartig.