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Roshan, M.* ; Kabekkodu, S.P.* ; Vijaya, P.H.* ; Manjunath, K.* ; Graw, J. ; Gopinath, P.M.* ; Satyamoorthy, K.*

Analysis of mitochondrial DNA variations in Indian patients with congenital cataract.

Mol. Vis. 18, 181-193 (2012)
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PURPOSE: Identification of mitochondrial DNA (mtDNA) variations in the inherited cataract patients from south India. METHODS: Three families with inherited cataract of maternal origin were evaluated. Clinical and ophthalmologic examinations were performed on available affected as well as unaffected family members. Samples of mtDNA were amplified using 24 pairs of overlapping primers to analyze the entire mitochondrial genome to screen for variations and analyzed for both coding and non-coding regions. Bioinformatic analysis was performed to evaluate the effect of nucleotide variations. RESULTS: DNA sequence analysis of inherited cataract families showed 72 nucleotide variations, of which 15 were observed in the major non-coding D-loop region, 3 in the tRNA genes, 5 in the rRNA genes, and 49 in the protein coding region. Among these variations 56 were reported previously and 16 were novel of which, 12 synonymous substitutions, 2 non-synonymous substitutions along with a frameshift mutation, and one was in the non-coding region. Nicotinamide adenine dinucleotide dehydrogenase (NADH) subunit (ND) gene of mtDNA was highly altered, in general, and found to contain 4 variations specific for cataract patients of the first family, six for the second, and one for the third family. CONCLUSIONS: Seventy-two variations were observed in three inherited cataract families. Four variations were specific for cataract patients of the first family, six for the second, and one for the third family. This is perhaps the first report on the presence of mitochondrial mutations in inherited cataracts.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Autosomal-dominant cataract; African-american women; Invasive breast-cancer; G10398A polymorphism; Parkinsons-disease; bipolar disorder; Alzheimer-disease; Lens crystallins; Gene mutation; Risk
Sprache englisch
Veröffentlichungsjahr 2012
HGF-Berichtsjahr 2012
ISSN (print) / ISBN 1090-0535
e-ISSN 1090-0535
Zeitschrift Molecular Vision
Quellenangaben Band: 18, Heft: 21, Seiten: 181-193 Artikelnummer: , Supplement: ,
Verlag Sun Yat-sen University, P.R. China
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Developmental Genetics (IDG)
POF Topic(s) 30204 - Cell Programming and Repair
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-500500-002
PubMed ID 22312186
WOS ID WOS:000301240200001
Erfassungsdatum 2012-04-20
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