Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-7-15
pubmed:abstractText
Glucose turnover rate, 2-deoxy-D-[3H]glucose (2-DG) uptake, lipid synthesis in liver, white adipose tissue, and brown adipose tissue (BAT) were measured in lean FA/FA and genetically obese fa/fa rats either kept at 21 degrees C or acclimated to a cold environment (4 degrees C). After 10 days at 4 degrees C, lean rats increased their glucose turnover rate; 2-DG uptake as well as lipid synthesis in BAT were markedly stimulated. After cold acclimation, obese rats also increased glucose turnover; however, BAT glucose utilization was only slightly stimulated. Basal hyperinsulinemia and muscle insulin resistance of the obese group (as assessed by reduced 2-DG uptake in the soleus muscle) were present at room temperature and persisted at 4 degrees C. Total BAT lipid synthesis was increased to the same extent as in lean rats. Obese rat liver lipid synthesis, already much higher than normal at 21 degrees C, was further increased by cold exposure. We conclude that obese cold-acclimated fa/fa rats do not improve their muscle insulin resistance and barely improve BAT glucose utilization. We further suggest that an additional activation of hepatic lipid synthesis and oxidation thereof could participate in the heat production needed by the cold-acclimated obese rats.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
8750-7587
pubmed:author
pubmed:issnType
Print
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1106-12
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:8005851-Acclimatization, pubmed-meshheading:8005851-Adipose Tissue, pubmed-meshheading:8005851-Adipose Tissue, Brown, pubmed-meshheading:8005851-Animals, pubmed-meshheading:8005851-Blood Glucose, pubmed-meshheading:8005851-Cold Temperature, pubmed-meshheading:8005851-Deoxyglucose, pubmed-meshheading:8005851-Eating, pubmed-meshheading:8005851-Fatty Acids, Nonesterified, pubmed-meshheading:8005851-Glucose, pubmed-meshheading:8005851-Insulin Resistance, pubmed-meshheading:8005851-Lipid Metabolism, pubmed-meshheading:8005851-Liver, pubmed-meshheading:8005851-Male, pubmed-meshheading:8005851-Muscles, pubmed-meshheading:8005851-Obesity, pubmed-meshheading:8005851-Rats, pubmed-meshheading:8005851-Rats, Inbred Strains, pubmed-meshheading:8005851-Triglycerides, pubmed-meshheading:8005851-Weight Gain
pubmed:year
1994
pubmed:articleTitle
Modifications of glucose and lipid metabolism in cold-acclimated lean and genetically obese rats.
pubmed:affiliation
Laboratoires de Recherches Métaboliques, Faculty of Medicine, University of Geneva, Switzerland.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't