Frequency of three BRCA1 gene founder mutations in breast/ovarian cancer families from the Pomerania-Kujawy region of Poland

A group of 63 families from the Pomerania-Kujawy region were analyzed for three BRCA1 gene Polish founder mutations, 5382insC, 300T>G, and 4153delA, because of breast (BrCa) and/or ovarian cancer (OvCa) history. The analysis was carried out by multiplex polymerase chain reaction method. BRCA1 mutation was revealed in nine (14%) families: in three (33%) of hereditary BrCa and OvCa families, in three (8%) of hereditary BrCa families, and in three (21%) of hereditary OvCa families. According to risk criteria, it was revealed in 45% of high-risk families with more than three cancers, 13% of moderate-risk families with two cancers, and 8% of families with sporadic OvCa. In six families, the mutation was found in a proband with BrCa or OvCa and in three families, the mutation was found in a healthy proband, first-degree relative of a patient deceased of BrCa or OvCa. 5382insC frameshift mutation accounted for 67% and 300T>G missense mutation for 33% of all identified familial mutations. 4153delA frameshift mutation was not found in analyzed sample of families. 5382insC mutation was found in 9% and 300T>G in 5% of all investigated families, and in 27 and 18%, respectively, of high-risk families. This underlines the importance of applying strict inclusion criteria to analyze mutation frequency in hereditary BrCa/OvCa families.

[The course of pregnancy and delivery among women with thrombocytopenia]

Between January 1987 and December 1997 in The Ludwik Rydygier Medical University in Bydgoszcz 10 pregnant woman with autoimmune or "gestational" thrombocytopenia and preeclampsia--associated thrombocytopenia were evaluated. All of the patients delivered naturally and one delivered by caesarean section for obstetric indications. Severe neonatal thrombocytopenia was observed in one of newborns.

[Pregnancy and labor in patients with myopathy]

25 years old pregnant women with dysrtophia musculorum progresiva was observed in The Ludwik Rydygier Medical University in Bydgoszcz (Poland). Pre-term activity of uterus and diabetes gravidarum were complicated pregnancy. In 36 week of pregnancy forceps operation was make of obstetric indications and maternal myopathy.