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Updated: Aug 8, 2026
08:27
A Non-random Mouse Model for Pharmacological Reactivation of Mecp2 on the Inactive X Chromosome
Published on: May 22, 2019
[Syndrome X]
Nihon Rinsho. Japanese Journal of Clinical Medicine
|April 13, 1999
Summary
Insulin resistance, a key factor in non-insulin-dependent diabetes mellitus, is linked to obesity and cardiovascular risks. Lifestyle changes and medications can improve insulin sensitivity.
Area of Science:
- Endocrinology and Metabolism
- Cardiovascular Disease Research
Context:
- Insulin resistance is a primary characteristic of non-insulin-dependent diabetes mellitus (NIDDM).
- It is closely associated with metabolic risk factors including hyperlipidemia, hypertension, obesity, and cardiovascular disease, collectively termed 'insulin-resistance syndrome' or Syndrome X.
- Central (abdominal) obesity demonstrates a stronger correlation with insulin resistance compared to general obesity.
Purpose:
- To explore the mechanisms underlying insulin resistance, particularly in relation to central obesity.
- To review the impact of lifestyle modifications and pharmacological interventions on insulin sensitivity.
Summary:
- Increased free fatty acid influx to the liver and TNF-alpha production in adipose tissue are implicated in the mechanism of insulin resistance associated with central obesity.
- Calorie restriction and weight loss have been shown to enhance insulin sensitivity in overweight individuals.
- Exercise training improves insulin sensitivity through enhanced oxidative enzymes, glucose transporters (GLUT4), and muscle capillarity, alongside abdominal fat reduction.
- Thiazolidinediones ('glitazones') are a class of drugs used clinically to improve insulin sensitivity.
Impact:
- Understanding the mechanisms of insulin resistance is crucial for developing targeted therapies for NIDDM and related metabolic disorders.
- Lifestyle interventions and pharmacological treatments offer viable strategies for managing insulin resistance and mitigating associated health risks.
- This research highlights the importance of addressing central obesity in the prevention and management of metabolic syndrome and cardiovascular disease.
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