کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2848697 | 1167437 | 2006 | 4 صفحه PDF | دانلود رایگان |

Respiratory and thermoregulatory responses to hyperthermia during isosmotic dehydration/hypovolemia were studied in 17 anaesthetized adult rabbits divided into two groups: normovolemic group (NV; n = 10) and hypovolemic group (HV; n = 7). Hypovolemia/isosmotic dehydration (a decrease in plasma volume by 16.1 ± 1.2%) was induced by furosemide (5 mg kg−1 i.v.).During hyperthermia (the rise in body temperature to 42 °C by a gradual body surface heating), the HV rabbits had lower (P < 0.05) respiratory frequency and higher (P < 0.05) tidal volume than the NV animals. The panting was absent in the HV rabbits at the BT of 42 °C, unlike the NV animals.The lower respiratory frequency and the absence of panting during exogenous hyperthermia in dehydrated animals are present not only during hyperosmotic dehydration induced by water deprivation [Doris, P.A., Baker, M.A., 1981. Hypothalamic control of thermoregulation during dehydration. Brain Res. 206 (1), 219–222], but they also occur in the furosemide-induced isosmotic dehydration/hypovolemia.
Journal: Respiratory Physiology & Neurobiology - Volume 150, Issue 1, 25 January 2006, Pages 99–102