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  • Title: Whole mitochondrial genome analysis in South Indian patients with Leber's hereditary optic neuropathy.
    Author: Saikia BB, Dubey SK, Shanmugam MK, Sundaresan P.
    Journal: Mitochondrion; 2017 Sep; 36():21-28. PubMed ID: 27989883.
    Abstract:
    Leber's hereditary optic neuropathy (LHON) is a mitochondrial DNA (mtDNA) associated neurodegenerative disorder of retinal ganglion cells. In this study, whole mitochondrial genome sequencing of 75 LHON patients and 40 controls was performed to identify the mutation frequency and haplogroup background of South Indian population. Analysis of mtDNA revealed 559 different variants in LHON patients, including 7 pathogenic mutations, 30 private, and 22 other disease associated variants. A significantly higher (p=0.0008) overall variation load per individual was noted among LHON patients versus controls. We reported for the first time, the association of M haplogroup (p=0.028) with LHON in this cohort.
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