Volume 58, Issue 12 pp. 3854-3864
Osteoarthritis

Inverse association of general joint hypermobility with hand and knee osteoarthritis and serum cartilage oligomeric matrix protein levels

Hsiang-Cheng Chen

Hsiang-Cheng Chen

Duke University Medical Center, Durham, North Carolina, and Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan

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Svati H. Shah

Svati H. Shah

Duke University Medical Center, Durham, North Carolina

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Yi-Ju Li

Yi-Ju Li

Duke University Medical Center, Durham, North Carolina

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Thomas V. Stabler

Thomas V. Stabler

Duke University Medical Center, Durham, North Carolina

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Joanne M. Jordan

Joanne M. Jordan

University of North Carolina at Chapel Hill

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Virginia Byers Kraus

Corresponding Author

Virginia Byers Kraus

Duke University Medical Center, Durham, North Carolina

Dr. Kraus is a licensee of Phase Bioscience Inc. (PhaseBio), Research Triangle Park, North Carolina, for a long-acting intraarticular compound.

Box 3416 Duke University Medical Center, Durham, NC 27710Search for more papers by this author
First published: 26 November 2008
Citations: 26

Abstract

Objective

Extensive joint hypermobility, lower serum cartilage oligomeric matrix protein (COMP) levels, and early-onset osteoarthritis (OA) are phenotypes of inherited pseudoachondroplasia and multiple epiphyseal dysplasia. However, few studies have evaluated the association between articular hypermobility and primary OA. We undertook the present study to evaluate this association and to test the hypothesis that COMP levels are associated with hypermobility in patients with OA and individuals without OA.

Methods

Two separate cohorts were available for analysis, the CARRIAGE (CARolinas Region Interaction of Aging Genes and Environment) extended family and a subset of the GOGO (Genetics of Generalized Osteoarthritis) sibpair cohort. In the CARRIAGE family, we performed hand and knee examinations and hypermobility evaluations (Beighton criteria) and obtained sera for measurement of COMP and hyaluronan (HA). Data on COMP and HA levels and extensive joint radiographic and hypermobility data were also available for the GOGO cohort.

Results

The prevalence of hypermobility was 13% in the CARRIAGE family and 5% in the GOGO cohort. In the CARRIAGE family, hypermobility was associated with a significantly reduced prevalence of hand (especially proximal interphalangeal joint) and knee OA and lower mean serum COMP levels, both in the total cohort and in non-hand-OA subgroups. These results were further validated in the GOGO subsets without radiographic OA, in which hypermobility was also associated with a significantly reduced mean serum COMP level (P < 0.0001 adjusted for age). Serum HA levels did not differ in relation to hypermobility in either cohort.

Conclusion

The present results indicate that there is an inverse relationship between hypermobility and hand and knee OA, and that hypermobility is associated with lower serum COMP levels. Genetic variations of the COMP gene may account for some subgroups of benign joint hypermobility.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

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