Cited by 286Adipokines, Inflammation, and Metabolic DiseasesDiabetes, Cardiovascular Risks, and LipoproteinsCardiovascular Function and Risk Factors

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

Unraveling the Temporal Pattern of Diet-Induced Insulin Resistance in Individual Organs and Cardiac Dysfunction in c57bl/6 Mice

Abstract

Type 2 diabetes is a heterogeneous disease characterized by insulin resistance and altered glucose and lipid metabolism in multiple organs. To understand the complex series of events that occur during the development of obesity-associated diabetes, we examined the temporal pattern of changes in insulin action and glucose metabolism in individual organs during chronic high-fat feeding in C57BL/6 mice. Insulin-stimulated cardiac glucose metabolism was significantly reduced after 1.5 weeks of high-fat feeding, and cardiac insulin resistance was associated with blunted Akt-mediated insulin signaling and GLUT4 levels. Insulin resistance in skeletal muscle, adipose tissue, and liver developed in parallel after 3 weeks of high-fat feeding. Diet-induced whole-body insulin resistance was associated with increased circulating levels of resistin and leptin but unaltered adiponectin levels. High-fat feeding caused insulin resistance in skeletal muscle that was associated with significantly elevated intramuscular fat content. In contrast, diet-induced hepatic insulin resistance developed before a marked increase in intrahepatic triglyceride levels. Cardiac function gradually declined over the course of high-fat feeding, and after 20 weeks of high-fat diet, cardiac dysfunction was associated with mild hyperglycemia, hyperleptinemia, and reduced circulating adiponectin levels. Our findings demonstrate that cardiac insulin resistance is an early adaptive event in response to obesity and develops before changes in whole-body glucose homeostasis. This suggests that obesity-associated defects in cardiac function may not be due to insulin resistance per se but may be attributable to chronic alteration in cardiac glucose and lipid metabolism and circulating adipokines.

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Crossref · 10.2337/diabetes.54.12.3530

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Metadata

Authors
Park, S.-Y., Cho, Y.-R., Kim, H.-J., Higashimori, T., Danton, C., Lee, M.-K., Dey, A., Rothermel, B., Kim, Y.-B., Kalinowski, A., Russell, K. S., & Kim, J. K.
Affiliations
  • Yale University (US)
  • The University of Texas Southwestern Medical Center (US)
  • Beth Israel Deaconess Medical Center (US)
Venue
Diabetes
Published
2005-12-01
Volume
54
Issue
12
Pages
3530-3540
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2144568374
Cited by
286
References
58
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 14 · 2020: 14 · 2019: 11 · 2018: 8 · 2017: 16 · 2016: 17 · 2015: 24 · 2014: 21 · 2013: 29 · 2012: 20
FWCI
9.37
Type
journal article
Language
en
Open access
closed
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Diabetes Association
  • Robert E. Leet and Clara Guthrie Patterson Trust
  • American Heart Association
  • National Institutes of Health (5r01hl072016-10)
  • U.S. Public Health Service
  • National Heart, Lung, and Blood Institute (R01 HL-072016)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK45735, U24DK59635, U24DK059635, U24-DK59635-P, P30DK045735)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
Keywords
insulin resistance, cardiac insulin resistance, high-fat diet, obesity, type 2 diabetes, cardiac glucose metabolism, Akt signaling, GLUT4, skeletal muscle insulin resistance, hepatic insulin resistance, adipose tissue insulin resistance, resistin, leptin, adiponectin, intramuscular fat, intrahepatic triglyceride, cardiac dysfunction, C57BL/6 mice
MeSH terms
Adipose Tissue, Animals, Animal Feed, Blood Glucose, Dietary Fats, Glucose, Heart, Heart Diseases, Insulin, Insulin Resistance, Mice, Inbred C57BL, Myocardium, Organ Specificity, Glucose Clamp Technique, Mice

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