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Related Concept Videos

Obesity01:24

Obesity

1.5K
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...
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Coronary Artery Disease I: Introduction01:30

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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Inflammation01:38

Inflammation

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Overview
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Type II Diabetes II: Pathophysiology01:24

Type II Diabetes II: Pathophysiology

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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.
19
Type II Diabetes I: Introduction01:26

Type II Diabetes I: Introduction

13
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...
13
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

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Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
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Related Experiment Video

Updated: Apr 27, 2026

Isolation, Characterization, and Purification of Macrophages from Tissues Affected by Obesity-related Inflammation
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Isolation, Characterization, and Purification of Macrophages from Tissues Affected by Obesity-related Inflammation

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Obesity, inflammation and endothelial dysfunction.

M Iantorno1, U Campia2, N Di Daniele3

  • 1Critical Care Medicine Department, National Institutes of Health, Bethesda, MD, USA.

Journal of Biological Regulators and Homeostatic Agents
|July 9, 2014
PubMed
Summary

Obesity causes cardiovascular disease by disrupting fat tissue function, leading to inflammation and impaired blood vessel health. While weight loss may help, preventing obesity-related heart issues requires further proof.

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Area of Science:

  • Cardiovascular pathophysiology
  • Obesity-related metabolic dysfunction
  • Vascular biology

Background:

  • Obesity is a primary driver of cardiovascular disease (CVD) morbidity and mortality.
  • It disrupts adipose tissue function, causing chronic inflammation and altered adipocyte signaling.
  • This leads to impaired vascular homeostasis and endothelial dysfunction, common in obesity complications.

Discussion:

  • Reduced nitric oxide (NO) bioavailability is a key factor in obesity-related endothelial dysfunction.
  • Systemic factors like inflammation, hyperglycemia, insulin resistance, oxidative stress, and renin-angiotensin system activation decrease NO bioavailability.
  • Local inflammation from perivascular fat contributes to endothelial and smooth muscle cell dysfunction, promoting vascular disease.

Key Insights:

  • Obesity-induced vascular dysfunction involves complex inflammatory and endocrine disruptions.
  • Endothelial dysfunction, marked by reduced NO bioavailability, is central to obesity's cardiovascular risks.
  • Both systemic and local inflammatory processes driven by obesity contribute to vascular pathogenesis.

Outlook:

  • Obesity-induced vascular dysfunction shows potential reversibility with interventions.
  • Further research is needed to validate and scale strategies for preventing obesity-related cardiovascular complications.
  • Understanding these pathophysiological mechanisms is crucial for developing effective treatments.