PMID- 10486320 OWN - NLM STAT- MEDLINE DCOM- 20001002 LR - 20200824 IS - 0002-9297 (Print) IS - 0002-9297 (Linking) VI - 65 IP - 4 DP - 1999 Oct TI - The contribution of germline BRCA1 and BRCA2 mutations to familial ovarian cancer: no evidence for other ovarian cancer-susceptibility genes. PG - 1021-9 AB - To establish the contribution of germline BRCA1 and BRCA2 mutations to familial ovarian cancer, we have analyzed both genes in DNA samples obtained from an affected individual in each of 112 families containing at least two cases of epithelial ovarian cancer. Germline mutations were found in 43% of the families; BRCA1 mutations were approximately four times more common than BRCA2 mutations. The extent of family history of ovarian and breast cancers was strongly predictive of BRCA1-mutation status. Segregation analysis suggests that a combination of chance clustering of sporadic cases and insensitivity of mutation detection may account for the remaining families; however, the contribution of other genes cannot be excluded. We discuss the implications for genetic testing and clinical management of familial ovarian cancer arising from the data presented in these studies. FAU - Gayther, S A AU - Gayther SA AD - Department of Oncology, Cancer Research Campaign, Strangeways Research Laboratory, Cambridge, United Kingdom. simon.gayther@srl.cam.ac.uk FAU - Russell, P AU - Russell P FAU - Harrington, P AU - Harrington P FAU - Antoniou, A C AU - Antoniou AC FAU - Easton, D F AU - Easton DF FAU - Ponder, B A AU - Ponder BA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Hum Genet JT - American journal of human genetics JID - 0370475 RN - 0 (BRCA2 Protein) RN - 0 (Neoplasm Proteins) RN - 0 (Transcription Factors) SB - IM MH - BRCA2 Protein MH - Breast Neoplasms/epidemiology/genetics/pathology MH - DNA Mutational Analysis MH - Epithelial Cells/metabolism/pathology MH - Exons/genetics MH - Female MH - Genes, BRCA1/*genetics MH - Genetic Predisposition to Disease/*genetics MH - Genetic Testing MH - Germ-Line Mutation/*genetics MH - Haplotypes/genetics MH - Humans MH - Likelihood Functions MH - Middle Aged MH - Models, Genetic MH - Neoplasm Proteins/*genetics MH - Ovarian Neoplasms/epidemiology/*genetics/pathology MH - Prevalence MH - Transcription Factors/*genetics PMC - PMC1288234 EDAT- 1999/09/16 09:00 MHDA- 2000/10/07 11:01 CRDT- 1999/09/16 09:00 PHST- 1999/09/16 09:00 [pubmed] PHST- 2000/10/07 11:01 [medline] PHST- 1999/09/16 09:00 [entrez] AID - S0002-9297(07)62604-4 [pii] AID - 10.1086/302583 [doi] PST - ppublish SO - Am J Hum Genet. 1999 Oct;65(4):1021-9. doi: 10.1086/302583.