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Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance
09:48

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Published on: February 17, 2023

Insulin resistance and triglycerides.

Charles J Glueck1, Naseer A Khan, Muhammad Umar

  • 1Cholesterol Center, Jewish Hospital of Cincinnati, Cincinnati, OH 45229, USA. glueckch@healthall.com

Journal of Investigative Medicine : the Official Publication of the American Federation for Clinical Research
|October 8, 2009
PubMed
Summary
This summary is machine-generated.

Insulin resistance (IR) significantly explains elevated triglycerides (TG) in adults with hyperlipidemia. Managing IR may help lower TG levels, independent of other factors like BMI and sex.

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Area of Science:

  • Endocrinology
  • Metabolic Syndrome
  • Cardiovascular Health

Background:

  • Hyperlipidemia is a major risk factor for cardiovascular disease.
  • Insulin resistance (IR) is increasingly recognized as a key metabolic abnormality.
  • The relationship between IR and triglyceride (TG) levels requires further elucidation.

Purpose of the Study:

  • To investigate insulin resistance (IR) as an explanatory variable for triglyceride (TG) levels in adults with hyperlipidemia.
  • To examine the stepwise association between IR and TG categories.
  • To identify other factors influencing IR and TG levels.

Main Methods:

  • Utilized stepwise multiple regression analysis in two cohorts: 1385 adults with primary untreated hyperlipidemia and 339 adults from the Princeton Follow-up Study (PFS).
  • Assessed homeostasis model assessment (HOMA) for insulin resistance (IR).
  • Analyzed triglycerides (TG), body mass index (BMI), sex, age, race, and TG/HDL-C ratio as variables.

Main Results:

  • In hyperlipidemia patients, BMI, sex (men higher), and IR were significant positive explanatory variables for TG.
  • In the PFS cohort, IR, race (whites higher), and sex (men higher) significantly explained TG levels.
  • HOMA IR demonstrated a stepwise increase across rising TG categories in both cohorts, independent of age, race, sex, and BMI.

Conclusions:

  • Homeostasis model assessment (HOMA) insulin resistance (IR) is a significant explanatory variable for triglyceride (TG) levels in individuals with hyperlipidemia and in the general population.
  • IR is a potentially reversible factor contributing to elevated TG.
  • Factors such as BMI, sex, and race also play a role in TG levels, but IR emerges as a key modifiable determinant.