Changes in interscapular brown adipose tissue of the rat during perinatal and early postnatal development and after cold acclimation—III. Some cytoplasmic enzymes

• Published in: Comparative biochemistry and physiology. B, Comparative biochemistry Vol. 41; no. 1; pp. 147 - 155
• Main Authors: Hahn, Peter, Skala, Josef
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 1972
• Subjects: Brown fat; cold exposure; development; G-6-P dehydrogenase; glyceraldehydephosphate dehydrogenase; malic enzyme; phosphofructokinase; pyruvate kinase; rat; Rattus rattus; white fat; α-glycerophosphate dehydrogenase; Brown fat; development; G-6-P dehydrogenase; rat; pyruvate kinase; α-glycerophosphate dehydrogenase; phosphofructokinase; glyceraldehydephosphate dehydrogenase; white fat; malic enzyme; Rattus rattus; cold exposure
• ISSN: 0305-0491
• DOI: 10.1016/0305-0491(72)90017-X

1. 1. The activities of glucose-6-phosphate dehydrogenase, cytoplasmic α-glycerophosphate dehydrogenase and glyceraldehyde-phosphate dehydrogenase in brown adipose tissue of the rat decreased considerably between the first and fortieth postnatal day. In white adipose tissue no age changes were observed. 2. 2. Phosphofructokinase and pyruvate kinase activities in brown adipose tissue increased to a peak on about day 10 and then decreased. No changes were observed in white adipose tissue. 3. 3. Malic enzyme activity increased postnatally in white adipose tissue but remained unaltered up to day 40 in brown adipose tissue. 4. 4. Cold exposure of 21-day-old rats for 16 days increased the activites of glucose-6-P-dehydrogenase, α-glycerophosphate dehydrogenase and malic enzyme in brown adipose tissue.