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A hereditary angioedema screening on an index case: Turkey
Mehmet Yasar Ozkars1, Ozlem Keskin2, Nazan Bayram3
1Department of Pediatric Allergy and Immunology, KahramanmarasSutcu Imam University Faculty of Medicine, Kahramanmaras, Turkey.
Asian Pacific Journal of Allergy and Immunology
|August 18, 2018
Summary
Screening for Hereditary Angioedema (HAE) is crucial for early diagnosis. This study found key correlations between C1 esterase inhibitor protein, C4 levels, and symptom severity, aiding in identifying HAE cases.
Area of Science:
- Immunology
- Genetics
- Clinical Diagnostics
Background:
- Hereditary Angioedema (HAE) is a rare genetic disorder characterized by recurrent, potentially fatal swelling episodes.
- Delayed diagnosis of HAE significantly impacts patient outcomes and increases mortality risk.
Observation:
- A study screened 60 individuals, measuring C4 and C1 esterase inhibitor protein (C1-INH) levels, and symptom severity.
- Genetic analysis of the C1 inhibitor gene (SERPING1) was performed on 9 HAE patients.
Findings:
- Significant positive correlations were observed between C1-INH and C4 levels (p < 0.001) and between C1-INH and C4 levels in HAE patients (p = 0.034).
- Negative correlations were found between C1-INH levels and symptom severity (p < 0.001), and between C4 levels and symptom severity (p = 0.002).
- A SERPING1 gene variant (c.601A>T) was identified in Type 1 HAE patients.
Implications:
- These findings highlight the importance of C1-INH and C4 levels as biomarkers for HAE screening.
- Early HAE detection through index case screening can be life-saving.
- Genetic analysis of SERPING1 is valuable for confirming HAE diagnosis and identifying specific types.
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