Metabolic adjustment induced by exposure to elevated ambient temperature is impaired in rats bearingt lesions in the preoptic area
Rev. bras. pesqui. méd. biol
; Braz. j. med. biol. res;23(9): 831-4, 1990. ilus, tab
Article
em En
| LILACS
| ID: lil-92405
Biblioteca responsável:
BR26.1
RESUMO
Metabolic adjustment was studied in rats with bilateral electrolytic lesions in the preoptic area which were exposed to heat (34-C) anda to normal temperature (25-C) for 60 days. The metabolic rate measured at neutral temperature (29-C) in preoptic-lesioned rats living at 25- or 34-C was reduced to 80% the rate of sham-operated controls. The increase in metabolic rate induced by heat (30 min at 34- or 37-C) in preoptic-lesioned rats, living at 25-C, was markedly reduced to 10% the rate of sham-operated controls living at 25-C. In preoptic-lesioned rats, the increased metabolic rate induced by heat exposure (34- or 37-C) was impaired, regardless of the living ambient temperature (25- or 34-C) of the animal. These data demonstrate the participation of the preoptic area in heat-induced invreased oxygen consumption and provide additional evidence for its role in the integration of thermal imputs with energy-linked metabolic processes
Buscar no Google
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Área Pré-Óptica
/
Temperatura
/
Ácidos Graxos não Esterificados
/
Temperatura Alta
Limite:
Animals
Idioma:
En
Revista:
Braz. j. med. biol. res
/
Rev. bras. pesqui. méd. biol
Assunto da revista:
BIOLOGIA
/
MEDICINA
Ano de publicação:
1990
Tipo de documento:
Article
/
Congress and conference
País de publicação:
Brasil