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Fatty liver disease in obese children--relation to other metabolic risk factors
1Department of Pediatrics, Hebrew University-Hadassah Braun School of Public Health and Community Medicine, Faculty of Medicine, Jerusalem, Israel.
Insights
Non-alcoholic fatty liver disease (NAFLD) is prevalent in obese children, contributing to insulin resistance and related metabolic issues. Early suspicion in at-risk youth is crucial for timely diagnosis and management.
Area of Science:
- Pediatrics
- Metabolic Disorders
- Hepatology
Background:
- Non-alcoholic fatty liver disease (NAFLD) is a common condition in obese children.
- It is characterized by abnormal lipid deposition in the liver, linked to increased intra-abdominal fat.
- Liver steatosis contributes to both peripheral and hepatic insulin resistance, leading to hyperinsulinemia.
Purpose of the Study:
- To highlight the association between obesity, NAFLD, and insulin resistance in pediatric populations.
- To emphasize the clinical manifestations of NAFLD in obese children, including dyslipidemia, hypertension, and altered glucose metabolism.
- To stress the importance of a high index of suspicion for NAFLD in obese youth with signs of insulin resistance.
Main Methods:
- This abstract is based on a review of current understanding and clinical observations regarding NAFLD in obese children.
- It synthesizes information on the pathophysiology linking lipid deposition to insulin resistance.
- It discusses the typical clinical presentation and associated metabolic derangements.
Main Results:
- Obese children with NAFLD often exhibit components of the insulin resistance syndrome.
- These include dyslipidemia, hypertension, and impaired glucose metabolism.
- NAFLD itself is frequently asymptomatic, underscoring the need for proactive identification.
Conclusions:
- NAFLD is a significant health concern in obese children, closely tied to insulin resistance.
- Early detection is vital, particularly in youth presenting with dyslipidemia or glucose metabolism abnormalities.
- A high index of suspicion is warranted in obese children with clinical indicators of insulin resistance.
Abstract:
Liver steatosis, known as non-alcoholic fatty liver disease (NAFLD) is common among obese children. Deposition of lipid within the liver represents part of an abnormal lipid partitioning pattern, most commonly associated with increased intra-abdominal fat. Lipid deposition in the liver can be a cause of peripheral insulin resistance via local acceleration of lipogenesis and a cause of hepatic insulin resistance leading to further compensatory hyperinsulinemia. The typical obese child with NAFLD will usually manifest other components of the insulin resistance syndrome such as dyslipidemia, hypertension and altered glucose metabolism. As liver steatosis itself is usually asymptomatic, a high index of suspicion for its presence should be present in obese insulin resistant youth who present with dyslipidemia or altered glucose metabolism or manifest anamnestic or physical signs that suggest the presence of insulin resistance.
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