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  • Title: No genetic differences between affected and unaffected members of a German family with Leber's hereditary optic neuropathy (LHON) with respect to ten mtDNA point mutations associated with LHON.
    Author: Gerbitz KD, Paprotta A, Obermaier-Kusser B, Rietschel M, Zerres K.
    Journal: FEBS Lett; 1992 Dec 21; 314(3):251-5. PubMed ID: 1361456.
    Abstract:
    In order to investigate possible synergistic influences of different mtDNA mutations on penetrance and severity of Leber's hereditary optic neuropathy (LHON), a large German LHON pedigree is characterized with respect to 10 different mutations associated with LHON. All members of the family carry three different mtDNA mutations (at nucleotide 4,216, 11,778 and 13,708) in a homoplasmic form, regardless of whether or not they are clinically affected. Testing for another 7 mutations reveals negative results in all family members. Hence, the variable disease expression of the family members cannot be explained by varying combinations of LHON-associated mtDNA mutations.
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