Antithrombin Deficiency In Brazilian Patients With Venous Thrombosis: Molecular Characterization Of A Single Splice Site Mutation, An Insertion And A De Novo Point Mutation.

dc.creatorArnaldi, L A
dc.creatorPretti, F A
dc.creatorZampieri, J P
dc.creatorRamos, C F
dc.creatorArruda, V R
dc.creatorAnnichino-Bizzacchi, J M
dc.date2001-Dec
dc.date2015-11-27T12:29:06Z
dc.date2015-11-27T12:29:06Z
dc.date.accessioned2018-03-29T00:55:36Z
dc.date.available2018-03-29T00:55:36Z
dc.identifierThrombosis Research. v. 104, n. 6, p. 397-403, 2001-Dec.
dc.identifier0049-3848
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/11755949
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/194908
dc.identifier11755949
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1295141
dc.descriptionThe prevalence of antithrombin (AT) deficiency in 342 unselected Brazilian patients with venous thrombosis was 1.16%, which increased to 3% when only patients under the age of 50 or with a familial history of thrombosis were considered. In two patients, a clinical (contraceptive use) or genetic risk factor (factor V Leiden and C677T in the methylene tetrahydrofolate reductase gene [MTHFR]) was identified and corroborated the hypothesis that an interaction of factors accounted for the appearance of thrombosis. However, no risk factor other than AT deficiency was identified in one patient with an important clinical and family history of spontaneous thrombosis. Three mutations were identified in these patients: a G-->A transition in intron 5 at position +1 (5'-->3'), three base insertions corresponding to arginine at position 5383 in exon 3A, and a G-->A transition at 13328, corresponding to an Ala404Thr de novo mutation. The polymorphisms in the genes coding for coagulation factors XII and XIII and fibrinogen normally associated with an increased risk for venous thrombosis were not related to thrombosis in these patients. This is the first study in South America to assess the prevalence of AT deficiency and to report the molecular characterization of the mutations involved.
dc.description104
dc.description397-403
dc.languageeng
dc.relationThrombosis Research
dc.relationThromb. Res.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAdult
dc.subjectAged
dc.subjectAntithrombin Iii
dc.subjectAntithrombin Iii Deficiency
dc.subjectBrazil
dc.subjectDna Mutational Analysis
dc.subjectFemale
dc.subjectHumans
dc.subjectMale
dc.subjectMiddle Aged
dc.subjectMutation
dc.subjectPedigree
dc.subjectPoint Mutation
dc.subjectPrevalence
dc.subjectRna Splice Sites
dc.subjectRisk Factors
dc.subjectVenous Thrombosis
dc.titleAntithrombin Deficiency In Brazilian Patients With Venous Thrombosis: Molecular Characterization Of A Single Splice Site Mutation, An Insertion And A De Novo Point Mutation.
dc.typeArtículos de revistas


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