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Serum N-propeptide of collagen IIA (PIIANP) as a marker of radiographic osteoarthritis burden.

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Date
2017-01
Authors
Daghestani, Hikmat N
Jordan, Joanne M
Renner, Jordan B
Doherty, Michael
Wilson, A Gerry
Kraus, Virginia B
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Abstract
Cartilage homeostasis relies on a balance of catabolism and anabolism of cartilage matrix. Our goal was to evaluate the burden of radiographic osteoarthritis and serum levels of type IIA procollagen amino terminal propeptide (sPIIANP), a biomarker representing type II collagen synthesis, in osteoarthritis.OA burden was quantified on the basis of radiographic features as total joint faces with an osteophyte, joint space narrowing, or in the spine, disc space narrowing. sPIIANP was measured in 1,235 participants from the Genetics of Generalized Osteoarthritis study using a competitive enzyme-linked immunosorbent assay. Separate multivariable linear regression models, adjusted for age, sex, and body mass index and additionally for ipsilateral osteophytes or joint/disc space narrowing, were used to assess the independent association of sPIIANP with osteophytes and with joint/disc space narrowing burden in knees, hips, hands and spine, individually and together.After full adjustment, sPIIANP was significantly associated with a lesser burden of hip joint space narrowing and knee osteophytes. sPIIANP was associated with a lesser burden of hand joint space narrowing but a greater burden of hand osteophytes; these results were only evident upon adjustment for osteoarthritic features in all other joints. There were no associations of sPIIANP and features of spine osteoarthritis.Higher cartilage collagen synthesis, as reflected in systemic PIIANP concentrations, was associated with lesser burden of osteoarthritic features in lower extremity joints (knees and hips), even accounting for osteoarthritis burden in hands and spine, age, sex and body mass index. These results suggest that pro-anabolic agents may be appropriate for early treatment to prevent severe lower extremity large joint osteoarthritis.
Type
Journal article
Subject
Humans
Osteoarthritis
Collagen Type II
Calcium-Binding Proteins
Enzyme-Linked Immunosorbent Assay
Female
Male
Permalink
https://hdl.handle.net/10161/18050
Published Version (Please cite this version)
10.1371/journal.pone.0190251
Publication Info
Daghestani, Hikmat N; Jordan, Joanne M; Renner, Jordan B; Doherty, Michael; Wilson, A Gerry; & Kraus, Virginia B (2017). Serum N-propeptide of collagen IIA (PIIANP) as a marker of radiographic osteoarthritis burden. PloS one, 12(12). pp. e0190251. 10.1371/journal.pone.0190251. Retrieved from https://hdl.handle.net/10161/18050.
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Kraus

Virginia Byers Kraus

Mary Bernheim Distinguished Professor of Medicine
Virginia Byers Kraus, MD, PhD, is the Mary Bernheim Distinguished Professor of Medicine, Professor of Orthopaedic Surgery, Professor of Pathology and a faculty member of the Duke Molecular Physiology Institute in the Duke University School of Medicine. She is a practicing Rheumatologist with over 30 years’ experience in translational musculoskeletal research focusing on osteoarthritis, the most common of all arthritides. She trained at Brown University (ScB 1979), Duke University (MD 19
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