Obesity and insulin resistance in childhood

Dalibor Pastucha1, Jana Malincíková, Jirí Hyjánek

  • 1Clinic for Rehabilitation and Movement Medicine, Faculty of Medicine, Palacky University, Olomouc, Czech Republic. pastuchad@fnol.cz

Insights

This study compared insulin sensitivity markers in obese versus healthy children. Obese children showed higher HOMA and lower QUICKI, suggesting these indices can assess pediatric insulin resistance.

Area of Science:

  • Pediatric Endocrinology
  • Metabolic Disorders
  • Clinical Diagnostics

Background:

  • Obesity is a significant risk factor for insulin resistance, predisposing children to diabetes and other metabolic conditions.
  • The increasing prevalence of childhood obesity necessitates accessible methods for assessing metabolic health.
  • Insulin resistance in children requires early detection to prevent long-term health complications.

Purpose of the Study:

  • To compare the homeostatic indices HOMA and QUICKI in obese versus healthy children.
  • To evaluate the utility of HOMA and QUICKI as convenient markers for insulin sensitivity in pediatric clinical practice.
  • To identify reliable indicators for assessing insulin resistance in pediatric populations.

Main Methods:

  • A comparative study involving 21 obese children and 29 healthy children.
  • Measurement and comparison of average levels for the Homeostatic Model Assessment (HOMA) index.
  • Measurement and comparison of average levels for the Quantitative Insulin Sensitivity Check Index (QUICKI).

Main Results:

  • Obese children exhibited a higher average HOMA index (3.6) compared to healthy children (1.7).
  • Obese children demonstrated a lower average QUICKI index (0.33) than healthy children (0.36).
  • The QUICKI index displayed a narrower confidence interval, indicating lower variability.

Conclusions:

  • HOMA and QUICKI indices are feasible for assessing insulin sensitivity in pediatric practice.
  • QUICKI may offer a more reliable measure of insulin sensitivity due to its lower variability.
  • These indices can aid in the early detection and management of insulin resistance in children.

Related Concept Videos

Obesity01:24

Obesity

The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
Type II Diabetes I: Introduction01:26

Type II Diabetes I: Introduction

Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
Type II Diabetes II: Pathophysiology01:24

Type II Diabetes II: Pathophysiology

PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1 diabetes is an...
Diabetes Mellitus: Overview and Type I Subtype01:22

Diabetes Mellitus: Overview and Type I Subtype

Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...