[Pedigree analysis of childless families of reciprocal chromosome translocation carriers]. / Analiza rodowodowa bezdzietnych rodzin obciazonych nosicielstwem translokacji chromosomowych wzajemnych.

OBJECTIVES: Pedigree analysis of childless families of unique reciprocal chromosome translocation (RCT) carriers may be useful for clinical prognosis and genetic counselling. MATERIAL AND METHODS: The group 13 childless families of RCT carriers were detected. Cytogenetic analysis of RCT was performed on blood samples using GTG and RBG banding technique. RESULTS: Thirteen pedigrees were constructed on basis of 64 cytogenetic results and anamnestic data of 62 spontaneous abortions and 7 stillbirths. Familial RCT were found in ten families. In addition fourteen relatives of the RCT carriers have had healthy children. Further observations showed other three healthy children among progeny of eight families. Low risk for unbalanced progeny at birth were estimate in most families. CONCLUSION: Childless families of RCT carriers have possibility to have healthy offsprings. Spontaneous abortions are result of RCT carrierstrip.