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Longitudinal association of infrapatellar fat pad signal intensity alteration with biochemical biomarkers in knee osteoarthritis

Cen, H, Yan, Q, Han, W, Meng, T, Chen, Z, Ruan, G, Wang, T, Pan, F ORCID: 0000-0002-3403-0094, Chen, D, Kraus, VB, Hunter, DJ and Ding, C ORCID: 0000-0002-9479-730X 2022 , 'Longitudinal association of infrapatellar fat pad signal intensity alteration with biochemical biomarkers in knee osteoarthritis' , Rheumatology , doi: 10.1093/rheumatology/keac214.

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Abstract

ObjectiveTo explore the longitudinal association of quantitative infrapatellar fat pad (IPFP) signal intensity alteration with osteoarthritis (OA)-related biomarkers.MethodEighteen OA-related biochemical biomarkers of 600 knee OA participants in the Foundation for the National Institutes of Health OA Biomarkers Consortium (FNIH) study were extracted. The quantitative IPFP signal intensity measures was acquired based on magnetic resonance imaging, including mean value [Mean (IPFP)] and standard deviation [sDev (IPFP)] of the whole IPFP, median value [Median (H)] and upper quartile value [UQ (H)] of high signal intensity, the ratio of volume of high signal intensity to volume of whole IPFP [Percentage (H)] and Clustering factor (H). The linear mixed-effect model was applied to determine the longitudinal associations between IPFP signal intensity alteration and biochemical biomarkers over 2 years.ResultsAll IPFP measures except for Clustering factor (H) were positively associated with urine collagenase-cleaved type II collagen neoepitope (uC2C), urine C-terminal cross-linked telopeptide of type II collagen (uCTX-II), urine C-terminal cross-linked telopeptide of type I collagen-α (uCTX-Iα) and urine N-terminal cross-linked telopeptide of type I collagen (uNTX-I). Mean (IPFP), Median (H) and Percentage (H) were positively associated with nitrated form of an epitope located in the triple helix of type II collagen (Coll2-1 NO2). Mean (IPFP), Median (H) and UQ (H) were positively associated with sCTX-I and uCTX-Iβ. Positive associations between sDev (IPFP), Percentage (H) and serum hyaluronic acid (sHA) were found.ConclusionOur results suggest a role of IPFP signal intensity alteration in joint tissue remodelling on a molecular level.

Item Type: Article
Authors/Creators:Cen, H and Yan, Q and Han, W and Meng, T and Chen, Z and Ruan, G and Wang, T and Pan, F and Chen, D and Kraus, VB and Hunter, DJ and Ding, C
Keywords: osteoarthritis, infra-patellar fat pad, magnetic resonance imaging, FNIH, biomarker
Journal or Publication Title: Rheumatology
Publisher: Oxford Univ Press
ISSN: 1462-0324
DOI / ID Number: 10.1093/rheumatology/keac214
Copyright Information:

© The Author(s) 2022. Published by Oxford University Press on behalf of the British Society for Rheumatology.

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