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Chronic Granulomatous Disease.

Amit Rawat1, Sagar Bhattad2, Surjit Singh2

  • 1Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India. rawatamit@yahoo.com.

Indian Journal of Pediatrics
|February 12, 2016
PubMed
Summary
This summary is machine-generated.

Chronic granulomatous disease (CGD) is a phagocytic defect impacting neutrophil function. Residual NADPH oxidase activity, not inheritance pattern, determines patient outcomes.

Keywords:
CYBB geneChronic granulomatous diseaseDihydrorhodamine assayNADPH oxidase complexNCF1 geneNCF2 gene

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Area of Science:

  • Immunology
  • Genetics
  • Pediatrics

Background:

  • Chronic granulomatous disease (CGD) is the most common phagocytic defect, stemming from mutations in NADPH oxidase genes.
  • It impairs neutrophil and macrophage intracellular killing due to a defective oxidative burst.
  • CGD presents with recurrent infections and can involve autoimmune manifestations.

Purpose of the Study:

  • To review current understanding and research in Chronic Granulomatous Disease (CGD).
  • To highlight diagnostic methods and treatment strategies for CGD.
  • To explore prognostic factors influencing CGD outcomes.

Main Methods:

  • Review of existing literature and studies on CGD.
  • Analysis of diagnostic screening tests like the NBT dye reduction test and DHR assay.
  • Evaluation of treatment outcomes including prophylaxis, stem cell transplant, and emerging therapies.

Main Results:

  • X-linked CGD historically associated with poorer prognosis than autosomal forms.
  • Residual NADPH oxidase activity is emerging as a key determinant of patient outcomes, irrespective of inheritance pattern.
  • Common infections include Staphylococcus aureus and Aspergillus; screening is vital for specific pathogens.

Conclusions:

  • CGD management requires long-term antibiotic/antifungal prophylaxis; severe cases may need stem cell transplant.
  • Interferon-γ role is debated, while gene therapy is under investigation.
  • Understanding residual NADPH oxidase activity is crucial for predicting CGD prognosis.