Genomics: the next step to elucidate the etiology of calcific aortic valve stenosis

Yohan Bossé1, Patrick Mathieu, Philippe Pibarot

  • 1Department of Anatomy and Physiology, Laval Hospital Research Center, Laval University, Quebec City, Quebec, Canada. yohan.bosse@crhl.ulaval.ca

Insights

Calcific aortic valve stenosis (AVS) is an actively regulated disorder, not just degenerative. Genetic research reveals key factors in AVS pathogenesis, paving the way for improved diagnosis and treatment.

Area of Science:

  • Cardiovascular Medicine
  • Genetics
  • Molecular Biology

Background:

  • Calcific aortic valve stenosis (AVS) is increasingly prevalent with aging populations, posing significant societal and economic challenges.
  • Historically viewed as degenerative, AVS is now understood as an actively regulated disorder with identifiable molecular targets.
  • Genetic predisposition is a significant factor in the development of AVS.

Purpose of the Study:

  • To review candidate genes and signaling pathways implicated in AVS pathogenesis based on genetic research.
  • To integrate genetic findings into a comprehensive understanding of AVS development.
  • To highlight the potential of genomic research for advancing AVS diagnosis, prevention, and treatment.

Main Methods:

  • Review of genetic research identifying candidate genes and signaling pathways in AVS.
  • Synthesis of current knowledge on AVS pathogenesis.
  • Discussion of emerging genomic approaches for AVS research.

Main Results:

  • Identification of specific candidate genes and signaling pathways contributing to AVS.
  • Elucidation of AVS as an actively regulated, genetically influenced disease.
  • Recognition of the need for further research into AVS's complete genetic architecture.

Conclusions:

  • Genetic research provides crucial insights into AVS pathogenesis.
  • Genomic approaches offer a powerful opportunity to advance understanding and management of AVS.
  • Further investigation is needed to fully unravel the genetic basis of AVS and refine patient care.

Related Concept Videos

Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
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...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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...
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...