| Literature DB >> 2827948 |
H Barré1, L Bailly, J L Rouanet.
Abstract
1. The effects of prolonged cold exposure on cytochrome oxidase activity were investigated in skeletal muscles, liver and adipose tissues from cold-acclimated (CA) and control (TN) ducklings and rats. 2. Cold acclimation increased the oxidative capacity of skeletal muscles (+33% in gastrocnemius and +195% in pectoral) and liver (+47%) from CA ducklings, but decreased the oxidative capacity of gastrocnemius muscle (-22%) from CA rats. On the other hand, in these CA rats it increased the oxidative capacity of liver by 88% and, above all, brown adipose tissue by 544%. 3. The significance of these changes due to acclimation to cold in ducklings and rats is discussed. Such an increase in oxidative capacity of CA duckling muscles may explain the non-shivering thermogenesis observed in these birds.Entities:
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Year: 1987 PMID: 2827948 DOI: 10.1016/0305-0491(87)90337-3
Source DB: PubMed Journal: Comp Biochem Physiol B ISSN: 0305-0491