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  • Title: A Novel Frameshift Mutation in the FGA Gene (c.196 delT) Leading to Congenital Afibrinogenemia.
    Author: Aydin Köker S, Köker A, Neerman-Arbez M, Ö Tunçer G, Akbas Y, Kara TT, Coban Y.
    Journal: J Pediatr Hematol Oncol; 2020 Mar; 42(2):e98-e99. PubMed ID: 31725541.
    Abstract:
    BACKGROUND: Congenital afibrinogenemia is characterized by the absence of fibrinogen. Congenital fibrinogen disorders result from several mutations in FGA, FGB, or FGG. Their epidemiology is not well known. OBSERVATION: The present study reports on 2 children with congenital afibrinogenemia. The first child, a male who is now 9 years old, was diagnosed with afibrinogenemia after spontaneous intracranial bleeding at the age of 3 years. The second child is a 2-year-old female cousin of the first patient, who was diagnosed with afibrinogenemia after coagulation tests were carried out due to frequent epistaxis and mucocutaneous bleeding. At follow-up, blood samples of the patients and their parents were sent to the Department of Genetic Medicine and Development, University Medical Center, Switzerland, for polymerase chain reaction analysis. In both patients, the novel homozygous frameshift mutation in the FGA exon 3: c.196 delT was detected. The parents of the patients were both heterozygous for the same mutation. CONCLUSIONS: Congenital afibrinogenemia is a rare coagulation disease. The molecular epidemiology of congenital fibrinogen disorders is complex, and the identification of new mutations will help shed light on this complex molecular structure. Therefore, a genetic analysis that includes more centers is needed.
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