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Related Experiment Videos

Hereditary angioedema: polymorphism.

J E Fabiani, G O Simkin, J Leoni

    Annals of Allergy
    |December 1, 1985
    PubMed
    Summary

    Hereditary angioedema patients often present atypically. Low C4, C1 INH, and complement activity were observed in four individuals, differing from classical hereditary angioedema descriptions.

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    Hereditary angioedema. Long-term follow-up of 88 patients. Experience of the Argentine Allergy and Immunology Institute.

    Allergologia et immunopathologia·2001

    Area of Science:

    • Immunology
    • Genetics
    • Complement System

    Background:

    • Hereditary angioedema (HAE) is a rare genetic disorder.
    • Characterized by recurrent episodes of swelling.
    • Classical HAE involves C1 inhibitor deficiency.

    Observation:

    • Studied four patients with HAE.
    • Assessed complement system components and immune complexes.
    • Observed low C4, C1 inhibitor (C1 INH), and CH50 complement activity.

    Findings:

    • All patients exhibited low C4, C1 INH, and CH50 complement activity.
    • Circulating immune complexes were detected in all patients.
    • Clinical presentations varied, deviating from typical HAE descriptions.

    Implications:

    • Highlights the diverse clinical spectrum of HAE.
    • Suggests the importance of comprehensive complement system evaluation in HAE diagnosis.
    • Underscores the need to consider atypical presentations in HAE management.

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