%0 Journal Article %T Estudio familiar de las hemofilias A y B: 5 a£¿os de experiencia en la detecci¨®n de portadoras %A Piloto Roque %A Yaixa %A Collazo Mesa %A Teresa %A G¨®mez Mart¨ªnez %A Manuel %A Hern¨¢ndez P¨¦rez %A Yadira %A G¨®nzalez Quesada %A Yulemi %A Giraldo Rico %A Ilienis %A Reyes Navarro %A L¨ªdice %J Revista Cubana de Hematolog£¿-a, Inmunolog£¿-a y Hemoterapia %D 2010 %I Editorial Ciencias M¨¦dicas %X hemophilia is a congenital disease of coagulation disorder and it is a recessive disorder linked to x-chromosome. the molecular study is conducted by indirect studies due to it is caused by heterogeneous mutations in gen of fviii and fix in 40 families with hemophilia a (ha) and 10 with hemophilia b (hb). dna extraction was carried out by saline precipitation method in 293 blood samples and 19 samples of amniotic fluid, as well as the analysis of st14, bcl i and hind iii polymorphism for the ah and taq i, xmn i and dde i for bh. the pcr technique was used. in the caser of ah it was possible to achieve a 35 % of information for st14 and hind iii and a 32.5 % for bcl. dde polymorphism supplied more information for bh for a 33 %; whereas the taq i represented the 10 % of information and xmn i the 0 %. we verified that from the families analyzed with ha, in 23 of them we there was information. besides, in 4 families affected by hb there was information. a total of 19 prenatal diagnoses were made with a previous determination of fetus sex, including 3 males ill. %K hemophilia %K vii factor %K ix factor %K amniotic fluid %K prenatal diagnosis. %U http://scielo.sld.cu/scielo.php?script=sci_abstract&pid=S0864-02892010000200008&lng=en&nrm=iso&tlng=en