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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-4-26
pubmed:abstractText
Characteristics of the lipoprotein profile and metabolism of triglyceride-rich lipoproteins in diabetic hamsters were investigated to assess their suitability as a model for human diabetic hyperlipidemia. Diabetes was induced in the hamsters by intraperitoneal injection of streptozocin (30 mg/kg) for 3 days and compared with the results in streptozocin-diabetic rats (50 mg/kg intravenously). Similar degrees of hyperglycemia and hypoinsulinemia were observed 8 to 10 days after the final streptozocin injection in both groups. Fasting plasma lipid concentrations were about 2.5 times greater in hamsters than in rats. Plasma cholesterol was principally associated with high-density lipoprotein (HDL) in both rodents, although the distribution in very-low-density lipoprotein (VLDL) and low-density lipoprotein (LDL) was significantly greater in hamsters (44%) than in rats (13%). Diabetes increased the concentrations of triglyceride, cholesterol, and phospholipid 5.6- to 7.8-fold in hamsters, whereas it increased them only 1.3- to 1.6-fold in rats. Diabetic hamsters have a plasma lipoprotein profile similar to that of diabetic man, ie, triglyceride-rich lipoproteins are increased and HDL cholesterol is decreased. The concentration of HDL cholesterol was inversely correlated with the severity of hypertriglyceridemia (r = .76, P < .005). This combination of events does not occur in diabetic rats. Hamsters had a low level of apoprotein B-48-containing triglyceride-rich lipoproteins, although diabetes increased the estimated concentration by fourfold. In rats apoprotein B-48 is the predominant form, but diabetes did not alter the relative proportion of apoprotein B isoforms.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0026-0495
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
299-305
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:8139477-Animals, pubmed-meshheading:8139477-Apolipoproteins B, pubmed-meshheading:8139477-Cricetinae, pubmed-meshheading:8139477-Diabetes Mellitus, Experimental, pubmed-meshheading:8139477-Diabetes Mellitus, Type 1, pubmed-meshheading:8139477-Disease Models, Animal, pubmed-meshheading:8139477-Hyperlipidemias, pubmed-meshheading:8139477-Hypertriglyceridemia, pubmed-meshheading:8139477-Isomerism, pubmed-meshheading:8139477-Lipase, pubmed-meshheading:8139477-Lipids, pubmed-meshheading:8139477-Lipoproteins, HDL, pubmed-meshheading:8139477-Lipoproteins, LDL, pubmed-meshheading:8139477-Liver, pubmed-meshheading:8139477-Male, pubmed-meshheading:8139477-Mesocricetus, pubmed-meshheading:8139477-Rats, pubmed-meshheading:8139477-Rats, Wistar, pubmed-meshheading:8139477-Streptozocin, pubmed-meshheading:8139477-Time Factors, pubmed-meshheading:8139477-Triglycerides
pubmed:year
1994
pubmed:articleTitle
Hyperlipidemia in streptozocin-diabetic hamsters as a model for human insulin-deficient diabetes: comparison to streptozocin-diabetic rats.
pubmed:affiliation
Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan.
pubmed:publicationType
Journal Article, Comparative Study