Article (Scientific journals)
Mitochondrial DNA haplogroups modulate the serum levels of biomarkers in patients with osteoarthritis.
Rego-Perez, I.; Fernandez-Moreno, M.; Deberg, Michelle et al.
2010In Annals of the Rheumatic Diseases, 69 (5), p. 910-7
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Keywords :
Aged; Biological Markers/blood; Collagen Type II/blood; DNA, Mitochondrial/genetics; Female; Haplotypes; Humans; Hyaluronic Acid/blood; Male; Middle Aged; Osteoarthritis, Hip/blood/genetics/radiography; Osteoarthritis, Knee/blood/genetics/radiography; Peptide Fragments/blood; Retrospective Studies; Severity of Illness Index
Abstract :
[en] OBJECTIVE: To analyse the influence of mitochondrial DNA (mtDNA) haplogroups on serum levels of molecular biomarkers in patients with osteoarthritis (OA). METHODS: Serum levels of molecular biomarkers of cartilage metabolism (collagen type II markers: C-terminal neoepitope generated by the collagenase-mediated cleavage of collagen type II triple helix (C2C), collagen type II (Coll2-1, and its nitrated form, Coll2-1NO(2)), procollagen type II (CPII)), synovial metabolism (hyaluronic acid (HA)) and cartilage and synovial turnover (cartilage glycoprotein 39 (YKL-40)) were analysed in 73 patients with OA and 77 healthy controls using ELISAs. All participants had been previously genotyped for the mtDNA haplogroups J, U and H. Non-parametric and multivariate analysis were performed to test the effects of the clinical variables, including gender, age, smoking status, diagnosis, mtDNA haplogroups and radiological Kellgren and Lawrence (K/L) grade on the serum levels of the molecular markers. RESULTS: Non-parametric analysis found increased serum levels of HA in patients with OA, while the values for C2C and the C2C/CPII ratio were significantly higher in the healthy controls. A multiple regression analysis showed a relationship between the mtDNA haplogroups and serum levels of the typical collagen type II markers. Carriers of the mtDNA haplogroup H had higher levels while carriers of the mtDNA haplogroup J showed lower levels. Statistically significant interactions between mtDNA haplogroups and diagnosis and between mtDNA haplogroups and radiological K/L grade in the serum levels of molecular markers were also found. CONCLUSION: A new role for mtDNA haplogroups emerges from this work. The results suggest that the mtDNA haplogroups interact significantly with the serum levels of OA-related molecular markers, suggesting the possibility of their use as a complementary assay with these molecular markers.
Disciplines :
Rheumatology
Author, co-author :
Rego-Perez, I.
Fernandez-Moreno, M.
Deberg, Michelle ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Pertega, S.
Fenandez-Lopez, C.
Oreiro, N.
Henrotin, Yves  ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.) - Didactique des sciences de la santé - Pathologie générale et physiopathologie
Blanco, F. J.
Language :
English
Title :
Mitochondrial DNA haplogroups modulate the serum levels of biomarkers in patients with osteoarthritis.
Publication date :
2010
Journal title :
Annals of the Rheumatic Diseases
ISSN :
0003-4967
eISSN :
1468-2060
Publisher :
BMJ Group, London, United Kingdom
Volume :
69
Issue :
5
Pages :
910-7
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 November 2010

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