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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...
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

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...
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

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...
Atherosclerosis III: Management01:26

Atherosclerosis III: Management

Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...

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Related Experiment Videos

[Obesity and atherosclerosis].

Hitoshi Shimano1

  • 1Department of Internal Medicine (Endocrinology and Metabolism), Graduate School of Comprehensive Human Sciences, Tsukuba University.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|February 11, 2009
PubMed
Summary
This summary is machine-generated.

Obesity, particularly visceral fat, promotes atherosclerosis by releasing adipocytokines that harm blood vessels. Reducing visceral fat can improve metabolic health and prevent cardiovascular disease.

Related Experiment Videos

Area of Science:

  • Cardiovascular Science
  • Metabolic Disease Research
  • Adipose Tissue Biology

Context:

  • Rising global obesity rates correlate with increased atherosclerosis and cardiovascular disease.
  • Visceral obesity is a key driver of metabolic dysfunction, including insulin resistance, dyslipidemia, and hypertension.
  • Adipose tissue releases adipocytokines that directly influence vascular cells and promote atherosclerosis.

Purpose:

  • To elucidate the role of adipocytokines in obesity-induced atherosclerosis.
  • To explore the impact of visceral fat reduction on cardiovascular risk factors.

Summary:

  • Obesity, especially visceral obesity, contributes to atherosclerosis by inducing insulin resistance, dyslipidemia, and hypertension.
  • Adipocytokines (e.g., TNF-alpha, leptin, adiponectin) produced by adipose tissue in obesity directly affect endothelial, smooth muscle, and macrophage cells in the vessel wall.
  • These adipocytokines regulate gene expression and cellular function, exacerbating the atherogenic environment.

Impact:

  • Reducing visceral fat mass can ameliorate key cardiovascular risk factors.
  • Targeting adipocytokine pathways may offer novel strategies for preventing obesity-related cardiovascular events.