Effect of ambient temperature on lipid metabolism in brown fat during the perinatal period |
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| Affiliation: | 1. Department of Anthropology, Stanford University, Main Quad, Building 50, 450 Serra Mall, Stanford, CA 94305, United States;2. Pacific Southwest Research Station, Fire and Fuels Program, USDA Forest Service, 1700 Bayview Drive, Arcata, CA 95521, United States;3. Woods Institute for the Environment, Jerry Yang & Akikio Yamazaki Environment & Energy Building, 473 Via Ortega, Stanford University, Stanford, CA 94305, United States;1. College of Chemical Engineering, Changchun University of Technology, 2055 Yan’an Street, Changchun 130012, PR China;2. State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, PR China;3. College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China;4. Materials Science and Engineering Institute, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, PR China;5. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;6. College of Chemistry, Northeast Normal University, Changchun 130024, PR China;7. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA;1. Department of Sociology and Anthropology, Illinois State University, Normal, IL, 61790-4660, USA;2. Department of Anthropology, University of Wyoming, Laramie, WY, 82071, USA;3. Institute for Anthropological Research, Gajeva 32, 10000, Zagreb, Croatia;4. Department of Archaeology, University of Zagreb, I. Lučića 3, 10000, Zagreb, Croatia;1. College of Science and Engineering, Flinders University, Adelaide, Australia;2. Koala Life, C/O Department for Environment and Water, 365c Mt Lofty Summit Road, Adelaide, Australia;3. School of Biological Sciences, University of Adelaide, Adelaide, Australia;4. Clinical and Health Science, UniSA, Adelaide, Australia;5. Konrad Lorenz Research Center for Behavior and Cognition & Department of Behavioral and Cognitive Biology, University of Vienna, Vienna, Austria;1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, PR China;2. State Key Laboratory of Building Safety and Environment, China Academy of Building Research, Beijing, PR China;3. College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China |
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| Abstract: | - 1.1. Norepinephrine-induced lipolysis, cyclic AMP production and glycerokinase activity were measured, in vitro, in the brown fat of rats born and reared at either 28° or 16°C during the first 3 weeks of life.
- 2.2. During the first two postnatal days, lipolytic activity in the tissue was lower than in the foetuses at both ambient temperatures At day 10, increased values of the parameters under consideration were similarly observed in both groups.
- 3.3. However, the hormonal regulation of lipolysis seemed to be quite different from that found in adult cold-acclimated rats.
- 4.4. At day 21, the cold-induced characteristics of lipid metabolism in brown fat were observed in the 16°C exposed rats, whereas a loss of tissue stimulation occurred in the 28°C exposed ones.
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