Document Detail

Ferritin concentrations in synovial fluid are higher in osteoarthritis patients with HFE gene mutations (C282Y or H63D).
MedLine Citation:
PMID:  20560808     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: In view of the clinical similarities between polyarticular osteoarthritis (POA) with metacarpophalangeal (MCP) joint involvement and the arthropathy that occurs in hereditary haemochromatosis (HH), it was hypothesized that osteochondral damage in both disorders may be due to localized iron overload. Accordingly, it was predicted that the concentration of ferritin in synovial fluid (SF) would be higher in OA patients with HFE gene mutations than in HFE wild-type (wt) OA patients. The aim of this study was to test this proposition. METHODS: Sequential patients with physician-diagnosed OA and, for comparison, diverse inflammatory diseases of the joints, who required diagnostic or therapeutic arthrocentesis, were studied. Participants underwent HFE genotyping. SF samples were assayed for ferritin and also for selected cytokines and matrix metalloproteinases (MMPs). RESULTS: Seventy-three patients with diverse rheumatic disorders were recruited. Of the 29 patients who had knee OA, 15 were wt and 14 were heterozygous for HFE mutations (C282Y or H63D). Mean SF ferritin concentrations in the wt and heterozygous OA groups were 273 and 655 ng/mL, respectively (p = 0.0146). CONCLUSIONS: A predicted difference in SF ferritin concentrations in patients with knee OA was confirmed. Concentrations of ferritin in the SF were found to be two- to threefold higher in knee OA patients with HFE gene mutations compared to wt patients. This finding is consistent with the possibility that, in OA patients with HFE gene mutations, localized iron overload may contribute either directly or indirectly to osteochondral damage, possibly in a similar way to that which occurs in the arthropathy that complicates HH.
G J Carroll; G Sharma; A Upadhyay; J A Jazayeri
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Scandinavian journal of rheumatology     Volume:  39     ISSN:  1502-7732     ISO Abbreviation:  Scand. J. Rheumatol.     Publication Date:  2010  
Date Detail:
Created Date:  2010-10-12     Completed Date:  2010-11-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0321213     Medline TA:  Scand J Rheumatol     Country:  England    
Other Details:
Languages:  eng     Pagination:  413-20     Citation Subset:  IM    
University of Notre Dame and Department of Rheumatology, Fremantle Hospital, Australia.
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MeSH Terms
Aged, 80 and over
Cytokines / blood
Ferritins / metabolism*
Histocompatibility Antigens Class I / genetics*
Leukemia Inhibitory Factor / blood
Matrix Metalloproteinases / blood
Membrane Proteins / genetics*
Middle Aged
Mutation / genetics*
Osteoarthritis, Knee / genetics*,  metabolism*
Synovial Fluid / metabolism*
Tissue Inhibitor of Metalloproteinase-1 / blood
Reg. No./Substance:
0/Cytokines; 0/HFE protein, human; 0/Histocompatibility Antigens Class I; 0/LIF protein, human; 0/Leukemia Inhibitory Factor; 0/Membrane Proteins; 0/Tissue Inhibitor of Metalloproteinase-1; 9007-73-2/Ferritins; EC 3.4.24.-/Matrix Metalloproteinases

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