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Cholesterol-Induced Hepatic Inflammation Does Not Underlie the Predisposition to Insulin Resistance in Dyslipidemic Female LDL Receptor Knockout Mice
- Source :
- Journal of Diabetes Research, 2015:956854. Hindawi Publishing Corporation, Journal of Diabetes Research, Vol 2015 (2015), Journal of Diabetes Research, Journal of Diabetes Research, 2015:956854. HINDAWI LTD, Journal of Diabetes Research, 2015, pp. 956854, Journal of diabetes research, 2015. Hindawi Publishing Corporation, Journal of Diabetes Research, 2015, 956854
- Publication Year :
- 2015
- Publisher :
- Hindawi Publishing Corporation, 2015.
-
Abstract
- Chronic inflammation is considered a causal risk factor predisposing to insulin resistance. However, evidence is accumulating that inflammation confined to the liver may not be causal to metabolic dysfunction. To investigate this, we assessed if hepatic inflammation explains the predisposition towards insulin resistance in low-density lipoprotein receptor knock-out (Ldlr−/−) mice. For this, wild type (WT) andLdlr−/−mice were fed a chow diet, a high fat (HF) diet, or a high fat, high cholesterol (HFC) diet for 2 weeks. Plasma lipid levels were elevated in chow-fedLdlr−/−mice compared to WT mice. Although short-term HF or HFC feeding did not result in body weight gain and adipose tissue inflammation, dyslipidemia was worsened inLdlr−/−mice compared to WT mice. In addition, dyslipidemic HF-fedLdlr−/−mice had a higher hepatic glucose production rate than HF-fed WT mice, while peripheral insulin resistance was unaffected. This suggests that HF-fedLdlr−/−mice suffered from hepatic insulin resistance. While HFC-fedLdlr−/−mice displayed the anticipated increased hepatic inflammation, this did neither exacerbate systemic nor hepatic insulin resistance. Therefore, our results show that hepatic insulin resistance is unrelated to cholesterol-induced hepatic inflammation inLdlr−/−mice, indicating that hepatic inflammation may not contribute to metabolic dysfunction per se.
- Subjects :
- Blood Glucose
HIGH-FAT DIET
Endocrinology, Diabetes and Metabolism
FAMILIAL COMBINED HYPERLIPIDEMIA
CARBOHYDRATE-METABOLISM
Adipose tissue
lcsh:Diseases of the endocrine glands. Clinical endocrinology
Mice
Endocrinology
Risk Factors
Mice, Knockout
Glucose tolerance test
medicine.diagnostic_test
Glucose clamp technique
Lipids
Cholesterol
Adipose Tissue
Liver
IKK-BETA
OBESITY
Female
lipids (amino acids, peptides, and proteins)
medicine.symptom
Research Article
medicine.medical_specialty
Article Subject
LONG-TERM
KUPFFER CELLS
Inflammation
Biology
Gas Chromatography-Mass Spectrometry
High cholesterol
Insulin resistance
LIVER-DISEASE
Internal medicine
medicine
Animals
Triglycerides
Dyslipidemias
lcsh:RC648-665
Glucose Tolerance Test
QUANTIFICATION
medicine.disease
Mice, Inbred C57BL
Renal disorders Radboud Institute for Molecular Life Sciences [Radboudumc 11]
Receptors, LDL
ATHEROSCLEROSIS
Glucose Clamp Technique
Insulin Resistance
Dyslipidemia
Lipoprotein
Subjects
Details
- Language :
- English
- ISSN :
- 23146745 and 23146753
- Database :
- OpenAIRE
- Journal :
- Journal of Diabetes Research
- Accession number :
- edsair.doi.dedup.....12f52e6d65f293dbe01016bdd0344981
- Full Text :
- https://doi.org/10.1155/2015/956854