Whole-genome sequencing identifies rare genotypes in COMP and CHADL associated with high risk of hip osteoarthritis.
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Authors
Styrkarsdottir, UnnurHelgason, Hannes
Sigurdsson, Asgeir
Norddahl, Gudmundur L
Agustsdottir, Arna B
Reynard, Louise N
Villalvilla, Amanda
Halldorsson, Gisli H
Jonasdottir, Aslaug
Magnusdottir, Audur
Oddson, Asmundur
Sulem, Gerald
Zink, Florian
Sveinbjornsson, Gardar
Helgason, Agnar
Johannsdottir, Hrefna S
Helgadottir, Anna
Stefansson, Hreinn
Gretarsdottir, Solveig
Rafnar, Thorunn
Almdahl, Ina S
Brækhus, Anne
Fladby, Tormod
Selbæk, Geir
Hosseinpanah, Farhad
Azizi, Fereidoun
Koh, Jung Min
Tang, Nelson L S
Daneshpour, Maryam S
Mayordomo, Jose I
Welt, Corrine
Braund, Peter S
Samani, Nilesh J
Kiemeney, Lambertus A
Lohmander, L Stefan
Christiansen, Claus
Andreassen, Ole A
Magnusson, Olafur
Masson, Gisli
Kong, Augustine
Jonsdottir, Ingileif
Gudbjartsson, Daniel
Sulem, Patrick
Jonsson, Helgi
Loughlin, John
Ingvarsson, Thorvaldur
Thorsteinsdottir, Unnur
Stefansson, Kari
Issue Date
2017-05
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Whole-genome sequencing identifies rare genotypes in COMP and CHADL associated with high risk of hip osteoarthritis. 2017, 49 (5):801-805 Nat. Genet.Abstract
We performed a genome-wide association study of total hip replacements, based on variants identified through whole-genome sequencing, which included 4,657 Icelandic patients and 207,514 population controls. We discovered two rare signals that strongly associate with osteoarthritis total hip replacement: a missense variant, c.1141G>C (p.Asp369His), in the COMP gene (allelic frequency = 0.026%, P = 4.0 × 10(-12), odds ratio (OR) = 16.7) and a frameshift mutation, rs532464664 (p.Val330Glyfs*106), in the CHADL gene that associates through a recessive mode of inheritance (homozygote frequency = 0.15%, P = 4.5 × 10(-18), OR = 7.71). On average, c.1141G>C heterozygotes and individuals homozygous for rs532464664 had their hip replacement operation 13.5 years and 4.9 years earlier than others (P = 0.0020 and P = 0.0026), respectively. We show that the full-length CHADL transcript is expressed in cartilage. Furthermore, the premature stop codon introduced by the CHADL frameshift mutation results in nonsense-mediated decay of the mutant transcripts.Description
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https://www.nature.com/ng/journal/v49/n5/pdf/ng.3816.pdfRights
Archived with thanks to Nature geneticsae974a485f413a2113503eed53cd6c53
10.1038/ng.3816
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