Cardiovascular & hematological disorders drug targets · 2019
Factor X Deficiency Due to a Compound Heterozygosis Between a New Mutation (Gla72Asp) in Exon 2 and an Already Known one (Gly154Arg) in Exon 5: Factor X Mar Del Plata1).
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Girolami Antonio, de Paoletti Diana Noemi Garcia, Nenkies Marcelo Leonardo, Ferrari Silvia, Guglielmone Hugo
Аннотация
BACKGROUND: Investigation of rare bleeding disorders in Latin-America.
OBJECTIVES: The report of a new case of FX deficiency due to a compound heterozygosis.
METHODS: Accepted clotting procedures were used. Sequencing of DNA was carried out by means of Applied Biosystems Instruments.
RESULTS: A compound heterozygote due to the association of a new mutation (Gla72Asp) with an already known mutation (Gly154Arg) of the FX gene is reported. The proposita is a 38 year old female who had a moderate bleeding tendency (menorrhagia, epistaxis, easy bruising). The proposita has never received substitution therapy but in the occasion of a uterine biopsy. The mother was asymptomatic but was a heterozygote for the new mutation. The father was asymptomatic but had deserted the family and could not be investigated. After this abandonment the mother of the proposita re-married with an asymptomatic man and she gave birth to a son who was asymptomatic but was also heterozygous for the new mutation (Gla72Asp). As a consequence it has to be assumed that the first husband of the mother of the proposita was heterozygous for the known mutation (Gly154Arg).
CONCLUSIONS: This is the third case of a new mutation in the FX gene reported, during the past few years, in Argentina.
OBJECTIVES: The report of a new case of FX deficiency due to a compound heterozygosis.
METHODS: Accepted clotting procedures were used. Sequencing of DNA was carried out by means of Applied Biosystems Instruments.
RESULTS: A compound heterozygote due to the association of a new mutation (Gla72Asp) with an already known mutation (Gly154Arg) of the FX gene is reported. The proposita is a 38 year old female who had a moderate bleeding tendency (menorrhagia, epistaxis, easy bruising). The proposita has never received substitution therapy but in the occasion of a uterine biopsy. The mother was asymptomatic but was a heterozygote for the new mutation. The father was asymptomatic but had deserted the family and could not be investigated. After this abandonment the mother of the proposita re-married with an asymptomatic man and she gave birth to a son who was asymptomatic but was also heterozygous for the new mutation (Gla72Asp). As a consequence it has to be assumed that the first husband of the mother of the proposita was heterozygous for the known mutation (Gly154Arg).
CONCLUSIONS: This is the third case of a new mutation in the FX gene reported, during the past few years, in Argentina.