Related Experiment Video

Updated: Jun 13, 2026

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis
07:51

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis

Published on: September 26, 2018

Understanding essential hypertension from the perspective of the cardiometabolic syndrome

Poorna R Karuparthi1, Preethi Yerram, Guido Lastra

  • 1Department of Internal Medicine, University of Missouri, Columbia, Missouri, USA.

Journal of the American Society of Hypertension : JASH
|April 23, 2010
PubMed

Insights

Hypertension (high blood pressure) contributes to severe health issues like heart disease and stroke. This study examines cellular changes in the heart and kidneys of hypertensive rats to better understand the disease.

Area of Science:

  • Cardiovascular Science
  • Renal Science
  • Pathophysiology

Background:

  • Hypertension (HTN) is a significant modifiable risk factor for major cardiovascular and renal diseases.
  • HTN is linked to cardiometabolic syndrome, exacerbating disease pathophysiology through increased redox stress.
  • Organ remodeling in the heart and kidney is a key consequence of sustained HTN.

Purpose of the Study:

  • To investigate the subcellular and extracellular matrix remodeling in the heart and kidney of a hypertensive rat model.
  • To compare these changes with a normotensive control group.

Main Methods:

  • Utilized the Ren2 transgenic rat model (TG(mREN-2)27) overexpressing tissue angiotensin II.
  • Employed light and electron microscopy to examine cardiac and renal tissue.
  • Compared hypertensive rats with Sprague Dawley control rats.

Main Results:

  • Observed distinct remodeling at the subcellular level in the heart and kidney of hypertensive rats.
  • Identified alterations in the extracellular matrix within these organs.
  • Demonstrated structural differences between the hypertensive model and control group.

Conclusions:

  • The study provides insights into the cellular and tissue-level changes underlying hypertension-induced organ damage.
  • Understanding these remodeling processes is crucial for developing effective management strategies for HTN.
  • Further research into HTN pathophysiology can yield better tools for clinicians and researchers.

More Related Videos

Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome06:04

Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome

Published on: September 27, 2024

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 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 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 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...
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...
Neural Regulation of Blood Pressure01:18

Neural Regulation of Blood Pressure

The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
Baroreceptor Reflex
Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...