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HLA antigen frequencies in children with cardiac disease in Cairo

A M Eissa1, S el-Tayeb, N M Nour

  • 1Pediatrics Department, Al-Azhar University, Cairo, Egypt.

Journal of Tropical Pediatrics
|October 1, 1991
PubMed

Insights

This study investigated Human Leukocyte Antigen (HLA) frequencies in children with congenital heart disease (CHD) in Cairo. Specific HLA types were associated with different types of congenital heart defects and rheumatic heart disease.

Area of Science:

  • Immunogenetics
  • Pediatric Cardiology
  • Human Leukocyte Antigen (HLA)

Background:

  • Congenital heart disease (CHD) is a significant global health concern in pediatric populations.
  • Understanding the genetic factors, such as Human Leukocyte Antigen (HLA) frequencies, may provide insights into CHD pathogenesis.
  • Previous research has explored HLA associations with various diseases, but specific data for pediatric CHD in certain regions is limited.

Purpose of the Study:

  • To determine the frequencies of specific Human Leukocyte Antigen (HLA) alleles in children diagnosed with congenital heart disease (CHD).
  • To investigate potential associations between particular HLA antigens and different subtypes of congenital heart defects.
  • To explore HLA associations in children with rheumatic heart disease.

Main Methods:

  • Analysis of Human Leukocyte Antigen (HLA) frequencies in a cohort of 48 children with congenital heart disease (CHD).
  • Categorization of patients based on specific congenital heart defect types (e.g., atrial septal defect, Fallot's anomaly, pulmonary stenosis).
  • Statistical analysis to identify significant associations between HLA antigens and disease phenotypes.

Main Results:

  • A high incidence of HLA A10 was observed in children with congenital heart disease (CHD).
  • Atrial septal defects showed a significant association with HLA A3 and A10.
  • Right loop anomalies (Fallot's and pulmonary stenosis) were significantly associated with HLA B12-45 and A10.
  • Rheumatic heart disease cases exhibited a strong positive association with HLA B8 and a negative association with HLA A28.

Conclusions:

  • Specific Human Leukocyte Antigen (HLA) profiles are associated with different types of congenital heart disease (CHD) in the studied pediatric population.
  • HLA antigen frequencies may serve as potential genetic markers for certain congenital and rheumatic heart conditions.
  • Further research is warranted to elucidate the underlying mechanisms of these HLA-disease associations in pediatric cardiovascular conditions.

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