Brown fat, thermogenesis and physiological birth in a marsupial.
Resting oxygen consumption corrected for body size, increased in young marsupials (Bennett's Wallaby) with body weights of 50-400 g. Up to 250 g body wt injections of noradrenaline caused either a fall or no change in metabolic rate, but above this age a significant rise was evoked. This age also corresponded to a rapid increase in growth rate and identification of active brown adipose tissue, assessed from electron microscopy and measurements of purine nucleotide binding to isolated mitochondria.
Loudon
A
A
Rothwell
N
N
Stock
M
M
D002001:Adipose Tissue, Brown / Q000502:physiology* / Q000648:ultrastructure; D000375:Aging; D000818:Animals; D000831:Animals, Newborn; D001481:Basal Metabolism; D001833:Body Temperature Regulation; D001835:Body Weight; D005260:Female; D007614:Macropodidae / Q000254:growth & development*; D008394:Marsupialia / Q000254:growth & development*; D008854:Microscopy, Electron; D010101:Oxygen Consumption; D011247:Pregnancy