Abstract:
:Not all patients with osteoarthritis (OA) show the same disease progression, as some of them remain relatively stable over time, while others progress to severe structural deterioration of the joint. In this sense, the main goal of both genetic and protein biomarkers in OA is to predict not only the risk of OA at an earlier stage of the disease but also which OA patients are more likely to progress to severe disease. Taking into account the incidence of the mitochondria and the mtDNA haplogroups in the pathogenesis of OA, the main objective of this work was to evaluate the incidence of the mtDNA haplogroups in the radiographic progression of the OA disease in a well-characterized follow-up cohort of Spanish patients. DNA from 281 OA patients from Hospital Universitario A Coruña was isolated to determine the European mtDNA haplogroups. Knee or hip radiographs from all affected joints were obtained at two time points with at least 36 months apart. Radiographs were evaluated using the Kellgren/Lawrence (K/L) scale; radiographic OA progression was defined as any radiographic worsening of the K/L joint score. Statistical analyses included Kaplan-Meier survival curves and Cox regression models. Patients belonging to the cluster TJ showed a slower radiographic OA progression than patients in the cluster KU (p = 0.036). Moreover, patients carrying the most common mtDNA haplogroup H are more apt to require total joint replacement surgery than non-H patients (p = 0.049). The inherited mitochondrial variants influence the radiographic progression of OA and could be considered among the genetic variants taken into account when the radiographic progression of OA is analyzed.
journal_name
Rheumatol Intjournal_title
Rheumatology internationalauthors
Soto-Hermida A,Fernández-Moreno M,Pértega-Díaz S,Oreiro N,Fernández-López C,Blanco FJ,Rego-Pérez Idoi
10.1007/s00296-014-3104-1subject
Has Abstractpub_date
2015-02-01 00:00:00pages
337-44issue
2eissn
0172-8172issn
1437-160Xjournal_volume
35pub_type
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