Definition: inherited genetic disorder characterized by the impaired metabolism of deoxyadenosine during DNA breakdown

Epidemiology


Etiology


Pathophysiology

Deficiency in adenosine deaminase → ↓ breakdown of adenosine and deoxyadenosine → ↑ deoxyadenosine (dATP) accumulation → ↓ enzyme activity of ribonucleotide reductase → lymphocyte toxicity → immunodeficiency


Clinical features

  • Severe, recurrent infections
  • Growth faltering

Diagnostics


Treatment

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