TY - JOUR
T1 - Interrelationships between heat acclimation and salivary cooling mechanism in conscious rats
AU - Horowitz, M.
AU - Argov, D.
AU - Mizrahi, R.
PY - 1983
Y1 - 1983
N2 - 1. 1. Adaptation of salivary cooling mechanism during acclimation to heat (34°C) and its role in thermoregulation of the rats was studied on conscious rats with either one submaxillary gland chronically cannulated or both submaxillaries ligated. 2. 2. During heat stress (40°C) acclimated rats showed a decrease both in rectal temperature threshold for salivation (Tre-TS), in salivary flow rate and in Tre (hyperthermic plateau). Animals survived for extended periods and rats with ligated glands survived 40% less than non-ligated rats. 3. 3. For both cannulated and ligated rats short term acclimation (5 days) was the most effective. 4. 4. It is suggested that earlier activation of salivation mechanism is associated with the decreased hyperthermic plateau and that the decreased salivary flow rate allows better control of water balance of the animals. Consequently, survival period during heat stress is extended.
AB - 1. 1. Adaptation of salivary cooling mechanism during acclimation to heat (34°C) and its role in thermoregulation of the rats was studied on conscious rats with either one submaxillary gland chronically cannulated or both submaxillaries ligated. 2. 2. During heat stress (40°C) acclimated rats showed a decrease both in rectal temperature threshold for salivation (Tre-TS), in salivary flow rate and in Tre (hyperthermic plateau). Animals survived for extended periods and rats with ligated glands survived 40% less than non-ligated rats. 3. 3. For both cannulated and ligated rats short term acclimation (5 days) was the most effective. 4. 4. It is suggested that earlier activation of salivation mechanism is associated with the decreased hyperthermic plateau and that the decreased salivary flow rate allows better control of water balance of the animals. Consequently, survival period during heat stress is extended.
UR - http://www.scopus.com/inward/record.url?scp=0020686272&partnerID=8YFLogxK
U2 - 10.1016/0300-9629(83)90374-2
DO - 10.1016/0300-9629(83)90374-2
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C2 - 6132743
AN - SCOPUS:0020686272
SN - 0300-9629
VL - 74
SP - 945
EP - 949
JO - Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology
JF - Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology
IS - 4
ER -