Related Experiment Video

Updated: May 25, 2026

A Minimally Invasive Model of Aortic Stenosis in Swine
06:51

A Minimally Invasive Model of Aortic Stenosis in Swine

Published on: October 20, 2023

Proteomic profile of human aortic stenosis: insights into the degenerative process

Tatiana Martín-Rojas1, Felix Gil-Dones, Luis F Lopez-Almodovar

  • 1Department of Vascular Physiopathology, Hospital Nacional de Paraplejicos (HNP), SESCAM, Toledo, Spain.

Journal of Proteome Research
|January 27, 2012
PubMed

Insights

Degenerative aortic stenosis involves significant protein changes in heart valves, unlike coronary artery disease. Understanding these protein alterations is crucial for developing new preventive strategies for aortic stenosis.

Area of Science:

  • Cardiovascular Biology
  • Proteomics
  • Pathophysiology

Background:

  • Degenerative aortic stenosis is a leading cause of heart valve replacement worldwide.
  • Unlike coronary artery disease, it is not effectively managed by modifying traditional risk factors.
  • Understanding the underlying pathophysiology is essential for developing preventive strategies.

Purpose of the Study:

  • To investigate the proteomic differences between stenotic aortic valves and normal control valves.
  • To identify key proteins involved in the pathogenesis of degenerative aortic stenosis.

Main Methods:

  • Proteomic analysis of aortic valve tissue from patients with degenerative aortic stenosis and healthy controls.
  • Quantitative differential electrophoresis (2D-DIGE) and mass spectrometry were employed.
  • Samples were obtained from 20 patients undergoing valve replacement and 20 normal control valves from necropsies.

Main Results:

  • 35 protein species were significantly increased in stenotic aortic valves, including apolipoprotein AI, alpha-1-antitrypsin, and serum albumin.
  • 8 protein species were decreased, such as transgelin, haptoglobin, and glutathione peroxidase 3.
  • Identified proteins are involved in critical cardiovascular processes like fibrosis, homeostasis, and coagulation.

Conclusions:

  • Significant alterations in key cardiovascular protein abundance suggest their involvement in degenerative aortic stenosis pathogenesis.
  • Further research is needed to elucidate the precise roles of these proteins.
  • This understanding may pave the way for future therapeutic interventions to modulate the disease process.

More Related Videos

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve09:13

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve

Published on: June 14, 2017

Protein Isolation from the Developing Embryonic Mouse Heart Valve Region06:55

Protein Isolation from the Developing Embryonic Mouse Heart Valve Region

Published on: September 23, 2014

Related Concept Videos

Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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 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...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...