Article (Scientific journals)
Mitochondrial DNA haplogroups and serum levels of proteolytic enzymes in patients with osteoarthritis.
Rego-Perez, I.; Fernandez-Moreno, M.; Deberg, Michelle et al.
2011In Annals of the Rheumatic Diseases, 70 (4), p. 646-52
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Keywords :
Aged; Aged, 80 and over; Biological Markers/blood; Case-Control Studies; DNA, Mitochondrial/genetics; Female; Genetic Predisposition to Disease; Haplotypes; Humans; Male; Matrix Metalloproteinase 13/blood; Matrix Metalloproteinase 3/blood; Middle Aged; Osteoarthritis, Hip/enzymology/genetics; Osteoarthritis, Knee/enzymology/genetics; Peptide Hydrolases/blood
Abstract :
[en] OBJECTIVE: To analyse the influence of mitochondrial DNA haplogroups, as well as the radiographic grade, on serum levels of proteolytic enzymes in patients with osteoarthritis (OA). METHODS: Serum levels of metalloproteinase-1 (MMP-1), MMP-3, MMP-13, myeloperoxidase and cathepsin K were analysed in 73 patients with OA and 77 healthy controls carrying the haplogroups J, U and H, by ELISA. Knee and hip radiographs were classified according to Kellgren and Lawrence (K/L) scoring from grade 0 to grade IV. Non-parametric and multiple regression analyses were performed to test the effects of clinical variables, including gender, age, smoking status, diagnosis, haplogroups and radiological K/L grade on serum levels of these enzymes. RESULTS: A significant influence of the haplogroups on the serum levels of MMP-3 and MMP-13 was detected (p=0.027 and p=0.035, respectively). Patients with OA with haplogroup H showed higher serum levels of MMP-3 than healthy controls. Serum levels of MMP-13 were significantly higher in patients with OA (p<0.001), and carriers of the haplogroup J showed lower levels than H carriers. Besides, levels of MMP-13 were proportionally higher in radiological groups B (K/L grade II and III) and C (K/L grade IV) than in group A (K/L grade 0 and I) (p=0.005). CONCLUSIONS: This study shows that haplogroups have a significant influence on serum levels of MMP-3 and MMP-13. The influence of the haplogroups on serum levels of MMP-3 is clearly dependent on the diagnosis, whereas the influence of the haplogroups on serum levels of MMP-13 is independent of diagnosis.
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.
Fernandez-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.)
Blanco, F. J.
Language :
English
Title :
Mitochondrial DNA haplogroups and serum levels of proteolytic enzymes in patients with osteoarthritis.
Publication date :
2011
Journal title :
Annals of the Rheumatic Diseases
ISSN :
0003-4967
eISSN :
1468-2060
Publisher :
BMJ Group, London, United Kingdom
Volume :
70
Issue :
4
Pages :
646-52
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 November 2011

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