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. 1989 Oct 1;263(1):305-8.
doi: 10.1042/bj2630305.

Role of brown adipose tissue in glucose utilization in conscious pre-obese Zucker rats

S Krief  1 , R Bazin, F Dupuy, M Lavau
Affiliations

Role of brown adipose tissue in glucose utilization in conscious pre-obese Zucker rats

S Krief et al. Biochem J. .

Abstract

In 16-day-old conscious Zucker rats, at a time when pre-obese fa/fa rats were not yet hyperinsulinaemic compared with their lean Fa/fa littermates, the whole-body glucose-metabolism rate was decreased by 10% in pre-obese compared with lean pups. The markedly decreased glucose utilization found in brown adipose tissue (BAT) of pre-obese compared with lean pups accounted for at least 70% of the difference in whole-body glucose metabolism observed between the two genotypes. In pre-obese fa/fa rats, the 20% decrease in noradrenaline content of BAT reported in this study is consistent with the diminished glucose utilization by this tissue, and further supports the hypothesis of a defect in the sympathetic-nervous-system regulation of BAT metabolism as one of the primary causes for this genetic obesity.

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