PMID- 10400989 OWN - NLM STAT- MEDLINE DCOM- 19990914 LR - 20220317 IS - 0964-6906 (Print) IS - 0964-6906 (Linking) VI - 8 IP - 8 DP - 1999 Aug TI - High prevalence of symptoms of Meniere's disease in three families with a mutation in the COCH gene. PG - 1425-9 AB - We report the genetic analysis of one large Belgian and two small Dutch families with autosomal dominant non-syndromic progressive sensorineural hearing loss associated with vestibular dysfunction. Linkage studies in the Belgian family mapped the disease to the DFNA9 locus on chromosome 14. Mutation analysis of the COCH gene, which is responsible for DFNA9, revealed a missense mutation changing a highly conserved residue. One of the patients, who had an earlier age of onset in comparison with most of the affected family members, was shown to be homozygous for the mutation. After the mutation was found in the Belgian family, we discovered that the same missense mutation was also present in two Dutch families with similar cochleo-vestibular symptoms. In all three families with hearing loss and imbalance problems, >25% of the patients showed additional symptoms, including episodes of vertigo, tinnitus, aural fullness and hearing loss. Clinically, these symptoms are consistent with the criteria for Meniere's disease. The importance of genetic factors in Meniere's disease has been suggested on many occasions, but this study is the first report of a mutation in a gene leading to the symptoms of Meniere's disease in a significant portion of the carriers. The COCH gene may be one of the genetic factors contributing to Meniere's disease and the possibility of a COCH mutation should be considered in patients with Meniere's disease symptoms. FAU - Fransen, E AU - Fransen E AD - Department of Medical Genetics, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Antwerp, Belgium, FAU - Verstreken, M AU - Verstreken M FAU - Verhagen, W I AU - Verhagen WI FAU - Wuyts, F L AU - Wuyts FL FAU - Huygen, P L AU - Huygen PL FAU - D'Haese, P AU - D'Haese P FAU - Robertson, N G AU - Robertson NG FAU - Morton, C C AU - Morton CC FAU - McGuirt, W T AU - McGuirt WT FAU - Smith, R J AU - Smith RJ FAU - Declau, F AU - Declau F FAU - Van de Heyning, P H AU - Van de Heyning PH FAU - Van Camp, G AU - Van Camp G LA - eng GR - DC03402/DC/NIDCD NIH HHS/United States GR - DC03544/DC/NIDCD NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Hum Mol Genet JT - Human molecular genetics JID - 9208958 RN - 0 (COCH protein, human) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Proteins) RN - 9007-49-2 (DNA) SB - IM MH - Chromosomes, Human, Pair 14/genetics MH - DNA/chemistry/genetics MH - DNA Mutational Analysis MH - Extracellular Matrix Proteins MH - Family Health MH - Female MH - Genetic Linkage MH - Hearing Loss, Sensorineural/genetics MH - Humans MH - Lod Score MH - Male MH - Meniere Disease/epidemiology/*genetics/pathology MH - Microsatellite Repeats MH - Mutation MH - Pedigree MH - Prevalence MH - Proteins/*genetics EDAT- 1999/07/13 00:00 MHDA- 1999/07/13 00:01 CRDT- 1999/07/13 00:00 PHST- 1999/07/13 00:00 [pubmed] PHST- 1999/07/13 00:01 [medline] PHST- 1999/07/13 00:00 [entrez] AID - ddc164 [pii] AID - 10.1093/hmg/8.8.1425 [doi] PST - ppublish SO - Hum Mol Genet. 1999 Aug;8(8):1425-9. doi: 10.1093/hmg/8.8.1425.