Nom du corpus

Corpus Systématique Végétale

Titre du document

Effects of high fat diets on hibernation and adipose tissue in Turkish hamsters

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Hibernation
  • High fat diet
  • White adipose tissue
  • Brown adipose tissue
  • Thermogenesis
  • Hamster, Mesocricetus brandti
  • BAT : brown adipose tissue
  • COA : cytochrome-c oxidase
  • DS : dorsal subcutaneus
  • DSWAT : dorsal subcutaneous white adipose tissue
  • E : epididymal
  • EWAT : epididymal white adipose tissue
  • FFDM : fat-free dry mass
  • HIB : hibernating
  • I : interscapular
  • IBAT : intercapsular brown adipose tissue
  • IS : inguinal subeutaneus
  • ISWAT : inguinal subcutaneous white adipose tissue
  • LPL : lipoprotein lipase
  • NON-HIB : non-hibernating
  • R : retroperitoneal
  • RWAT : retroperitoneal white adipose tissue
  • SDS : sodium dodecyl sul
  • UCP : uncoupling protein
  • WAT : white adipose tissue
Nom du fichier dans la ressource
Syst_veg6_v2_018370
Auteur(s)
  • Timothy J. Bartness 1,2
  • Rachel Milner 3,4
  • Alain Geloen 3,4,5
  • Paul Trayhurn 3,4,5
Affiliation(s)
  • 1) Department of Psychology, Georgia State University, Atlanta, Georgia, USA
  • 2) Department of Biology, Behavior and Neurobiology Program, Georgia State University, Atlanta, Georgia, USA
  • 3) Nutrition and Metabolism Research Group, Department of Foods and Nutrition, University of Alberta, 536 Newton Research Building, Edomonton, Alberta, Canada
  • 4) Nutrition and Metabolism Research Group, Department of Medicine, University of Alberta, 536 Newton Research Building, Edmonton, Alberta, Canada
  • 5) Division of Biochemical Sciences, Rowett Research Institute, Aberdeen, Scotland
Résumé

The effects of dietary fat saturation and fat content on hibernation and several properties of white and brown adipose tissue (WAT and BAT, respectively) were investigated in Turkish hamsters (Mesocricetus brandti). Male hamsters were housed in a long photoperiod (LD 16:8) at 23°C and fed one of three diets: (1) chow (6.5% fat per weight), (2) chow+13.5% vegetable oil (OIL, 20% fat per weight [largely unsaturated fat]) and (3) chow+13.5% vegetable shortening [SHORTENING, 20% fat per weight (largely saturated fat)]. Five weeks later body weights had stabilized and the animals were transferred to a short photoperiod (LD 8:16) at 3°C. At the peak of the hibernation season (17 weeks) the animals were sacrificed within 24 h of arousal. Chow-fed hamsters had the greatest percentage of animals hibernating and days found torpid compared with the two fat-fed groups, with no differences found between the latter two groups for these measures. There were no differences between hibernating (HIB) and nonhibernating (NON-HIB) hamsters across or within the diet groups for any of the BAT measures [uncoupling protein content, mitochondrial mass, lipoprotein lipase (LPL) activity, and in vivo lipogenesis], nor were there significant effects of the diet on these measures. CHOW-and OIL-fed HIB hamsters showed decreases in body weight. All HIB groups had decreases in each carcass component, several fat pad weights, testes weight, and food intake. No consistent differences in WAT LPL activity or in vivo lipogenesis were found between HIB and NON-HIB hamsters. Feeding saturated high fat diets inhibits hibernation in some species; however, in the present experiment, feeding of both saturated and unsaturated fat-laden diets inhibited hibernation to a similar degree.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences medicales
  • 4 - maladies metaboliques
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Endocrinology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Animal Science and Zoology
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
Catégories WoS
  • 1 - science ; 2 - zoology
  • 1 - science ; 2 - physiology
Identifiant ISTEX
275D7D5171139B62CD443FC4F8619C59AA8E2749
Revue

Journal of Comparative Physiology B

Année de publication
1991
Présence de XML structuré
Non
Score qualité du texte
10
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0B8VNT2G-D
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