Related Experiment Video

Updated: Aug 16, 2026

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
07:31

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats

Published on: December 2, 2016

The heart in obesity-hypertension

Stephen A Morse1, Paco E Bravo, Malika C Morse

  • 1Louisiana State University Health Sciences Center, Section of Nephrology, Department of Medicine, New Orleans, LA 70112, USA.

Expert Review of Cardiovascular Therapy
|August 4, 2005
PubMed

Insights

Obesity is a global epidemic linked to cardiovascular issues. Key mechanisms include hormonal imbalances and altered hemodynamics, increasing risks for heart failure and sudden death.

Area of Science:

  • Cardiovascular Physiology
  • Endocrinology
  • Metabolic Disorders

Background:

  • Obesity is a global health crisis with significant cardiovascular implications.
  • Obesity is strongly associated with increased cardiovascular morbidity and mortality in adults.
  • Understanding the mechanisms linking obesity to hypertension is crucial for public health.

Purpose of the Study:

  • To elucidate the endocrine, metabolic, and hemodynamic mechanisms underlying obesity-induced hypertension.
  • To detail the cardiovascular adaptations in obesity and their contribution to adverse outcomes.
  • To provide a comprehensive overview of the pathophysiology of obesity and cardiovascular disease.

Main Methods:

  • Review of current literature on obesity, hypertension, and cardiovascular complications.
  • Analysis of endocrine and metabolic pathways involved in obesity-related cardiovascular changes.
  • Examination of hemodynamic alterations and cardiac remodeling in obese individuals.

Main Results:

  • Obesity-hypertension involves suppressed natriuretic peptide activity, increased sympathetic tone, and activation of the renin-angiotensin-aldosterone system.
  • Adipocyte-derived angiotensin II, leptin resistance, hyperleptinemia, and hyperinsulinemia contribute to hypertension.
  • Hemodynamic profile includes high intravascular volume, increased cardiac output, and normal peripheral resistance.
  • Cardiovascular adaptations involve altered vascular responsiveness and left ventricular hypertrophy.
  • These changes increase the risk of congestive heart failure, arrhythmia, and sudden death.

Conclusions:

  • Obesity-induced hypertension results from a complex interplay of endocrine, metabolic, and hemodynamic factors.
  • The cardiovascular adaptations in obesity predispose individuals to severe cardiac events.
  • Addressing obesity is critical for mitigating cardiovascular morbidity and mortality.

More Related Videos

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries08:58

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

Published on: February 25, 2016

Multidisciplinary Approach to Obesity Management: A Case Report05:10

Multidisciplinary Approach to Obesity Management: A Case Report

Published on: May 30, 2025

Related Concept Videos

Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension I: Introduction01:28

Hypertension I: Introduction

Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
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...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...