Transthyretin Glu54Leu - an unknown mutation within the Swedish population associated with amyloid cardiomyopathy and a unique fibril typeVisa övriga samt affilieringar
2019 (Engelska)Ingår i: Scandinavian Journal of Clinical and Laboratory Investigation, ISSN 0036-5513, E-ISSN 1502-7686, Vol. 79, nr 6, s. 372-376Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
For the first time, we report of a Swedish family of five individuals with a TTR Glu54Leu (p. Glu74Leu) mutation in the transthyretin gene. This mutation has been previously described a few times in the literature, but no phenotypic or clinical description has been done before. The most common mutation in the Swedish population is TTRVal30Met and is mostly found in the Northern part of Sweden. Interestingly, the TTRGlu54Leu mutation was found in the same endemic area. The main phenotype of the TTR Glu54Leu patients is severe cardiomyopathy, which resulted in heart transplantation for the index person. As previously seen for ATTR amyloidosis patients with mainly cardiomyopathy, the amyloid fibrils consisted of a mixture of full-length and fragmented TTR species. However, western blot analyses detected a previously unrecognized band, indicating that these patients may have a third, so far unrecognized, fibril composition type that is distinct from the usual type A band pattern.
Ort, förlag, år, upplaga, sidor
Taylor & Francis, 2019. Vol. 79, nr 6, s. 372-376
Nyckelord [en]
Amyloidosis, amyloid fibril, cardiomyopathy, neuropathy, transthyretin
Nationell ämneskategori
Kardiologi och kardiovaskulära sjukdomar
Identifikatorer
URN: urn:nbn:se:umu:diva-160383DOI: 10.1080/00365513.2019.1624977ISI: 000474016000001PubMedID: 31169435Scopus ID: 2-s2.0-85067607042OAI: oai:DiVA.org:umu-160383DiVA, id: diva2:1326390
Forskningsfinansiär
Knut och Alice Wallenbergs StiftelseVästerbottens läns landsting2019-06-182019-06-182025-02-10Bibliografiskt granskad