Sammanfattning
Mitochondria are essential for early cardiac development and impaired regulation of mitochondrial function was implicated in congenital heart diseases. We described a newborn girl with hypertrophic cardiomyopathy and profound hearing loss. The mtDNA mutational analysis revealed the presence of known polymorphisms associated to cardiomyopathy and/or hearing loss, and 2 novel heteroplasmic mutations: m.3395A>G (Y30C) occurring in a highly conserved aminoacid of the ND1 gene and the m.4316A>G located in the residue A54 of the tRNA(Ile) gene. These 2 novel variations were absent in 150 controls. All these variants may act synergistically and exert a cumulative negative effect on heart function to generate the cardiomyopathy.
Originalspråk | engelska |
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Sidor (från-till) | 504-10 |
Antal sidor | 7 |
Tidskrift | Biochemical and Biophysical Research Communications |
Volym | 404 |
Nummer | 1 |
DOI | |
Status | Published - 2011 jan. 7 |
Externt publicerad | Ja |