Related Experiment Videos

An overview of genetics of paediatric rheumatic diseases

Patricia Woo1, Robert A Colbert

  • 1Windeyer Building, University College London, 46, Cleveland Street, London W1T 4JF, UK. Patricia.woo@ucl.ac.uk

Best Practice & Research. Clinical Rheumatology
|October 27, 2009
PubMed

Insights

Genetic factors significantly influence paediatric inflammatory diseases like juvenile idiopathic arthritis (JIA). Research explores genetic susceptibility, environmental factors, and epigenetic modifications in these conditions.

Area of Science:

  • Pediatric rheumatology
  • Immunogenetics
  • Genetic epidemiology

Background:

  • Paediatric inflammatory diseases, particularly juvenile idiopathic arthritis (JIA), are increasingly recognized as having a strong genetic basis.
  • Understanding the genetic architecture of JIA is crucial for developing targeted therapies and preventative strategies.
  • Current research highlights the interplay between common genetic variants (single nucleotide polymorphisms) and environmental factors in disease susceptibility.

Purpose of the Study:

  • To review the current understanding of genetic susceptibility in various subtypes of juvenile idiopathic arthritis (JIA).
  • To discuss the methodologies employed in investigating JIA genetics, including their strengths and limitations.
  • To explore the role of epigenetic modifications as a potential layer of genetic regulation in paediatric rheumatic diseases.

Main Methods:

  • Review of existing literature on genetic association studies for juvenile idiopathic arthritis (JIA).
  • Analysis of different genetic investigation techniques, such as genome-wide association studies (GWAS).
  • Examination of epigenetic mechanisms, including DNA methylation and microRNAs, in the context of immune function and rheumatic diseases.

Main Results:

  • Evidence suggests that common single nucleotide polymorphisms (SNPs) across multiple genes contribute to the genetic risk for JIA.
  • Juvenile idiopathic arthritis (JIA) is the most extensively studied paediatric rheumatic disease in terms of genetic susceptibility.
  • Epigenetic modifications represent a significant area for future research in understanding the aetiology of paediatric rheumatic diseases.

Conclusions:

  • Genetic predisposition plays a major role in paediatric inflammatory diseases, with JIA serving as a key model for investigation.
  • A combination of genetic and environmental factors, modulated by epigenetic mechanisms, likely underlies disease development.
  • Further research into the complex genetic and epigenetic landscape is essential for advancing the diagnosis and treatment of paediatric rheumatic diseases.

Related Concept Videos

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...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
Rheumatic Heart Disease III: Medical Management01:21

Rheumatic Heart Disease III: Medical Management

Rheumatic heart disease (RHD) management can be divided into two main strategies: prevention and long-term management.Primary PreventionPrimary prevention focuses on timely diagnosis and management of group A streptococcal pharyngitis to prevent acute rheumatic fever. The most widely used antibiotic for treating this condition is intramuscular benzathine penicillin G.Acute Rheumatic Fever TreatmentThe primary treatment goal for a patient diagnosed with acute rheumatic fever is to suppress the...
Incomplete Dominance01:43

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
Pedigree Analysis01:35

Pedigree Analysis

Overview