PMID- 17641922 OWN - NLM STAT- MEDLINE DCOM- 20071018 LR - 20220716 IS - 0942-2056 (Print) IS - 0942-2056 (Linking) VI - 15 IP - 7 DP - 2007 Jul TI - Levels of biomarkers correlate with magnetic resonance imaging progression of knee cartilage degeneration: a study on canine. PG - 869-78 AB - To examine the association between levers of cartilage oligomeric matrix protein (COMP), matrix metalloproteinases-1 (MMP-1), matrix metalloproteinases-3 (MMP-3), tissue inhibitor of matrix metalloproteinases-1 (TIMP-1) in serum and synovial fluid, and MR imaging of cartilage degeneration in knee joint, and to understand the effects of movement training with different intensity on cartilage of knee joint. 20 adult canines were randomly divided into three groups (8 in the light training group; 8 in the intensive training group; 4 in the control group), and canines of the two training groups were trained daily at different intensity. The training lasted for 10 weeks in all. Magnetic resonance imaging (MRI) examinations were performed regularly (2, 4, 6, 8, 10 week) to investigate the changes of articular cartilage in the canine knee, while concentrations of COMP, MMP-1, MMP-3, TIMP-1 in serum and synovial fluid were measured by ELISA assays. We could find imaging changes of cartilage degeneration in both the training groups by MRI examination during training period, compared with the control group. However, there was no significant difference between these two training groups. Elevations of levels of COMP, MMP-1, MMP-3, TIMP-1, MMP-3/TIMP-1 were seen in serum and synovial fluid after training, and their levels had obvious association with knee MRI grades of cartilage lesion. Furthermore, there were statistically significant associations between biomarkers levels in serum and in synovial fluid. Long-time and high-intensity movement training induces cartilage degeneration in knee joint. Within the intensity extent applied in this study, knee cartilage degeneration caused by light training or intensive training has no difference in MR imaging, but has a comparatively obvious difference in biomarkers level. To detect articular cartilage degeneration in early stage and monitor pathological process, the associated application of several biomarkers has a very good practical value, and can be used as a helpful supplement to MRI. FAU - Qi, Chang AU - Qi C AD - Military Training Medicine Institute in the 150th Hospital of PLA, Luoyang, Henan Province, China. changqi1127@yahoo.com.cn FAU - Changlin, Huang AU - Changlin H LA - eng PT - Journal Article DEP - 20070215 PL - Germany TA - Knee Surg Sports Traumatol Arthrosc JT - Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA JID - 9314730 RN - 0 (Biomarkers) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Glycoproteins) RN - 0 (Matrilin Proteins) RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) RN - EC 3.4.24.7 (Matrix Metalloproteinase 1) SB - IM MH - Animals MH - Biomarkers/metabolism MH - Cartilage, Articular/*pathology MH - Dogs MH - Enzyme-Linked Immunosorbent Assay MH - Extracellular Matrix Proteins/metabolism MH - Glycoproteins/metabolism MH - Knee Joint/metabolism/*pathology MH - *Magnetic Resonance Imaging MH - Male MH - Matrilin Proteins MH - Matrix Metalloproteinase 1/metabolism MH - Matrix Metalloproteinase 3/metabolism MH - Models, Animal MH - Physical Conditioning, Animal/*methods MH - Random Allocation MH - Synovial Fluid/metabolism MH - Tissue Inhibitor of Metalloproteinase-1/metabolism EDAT- 2007/07/21 09:00 MHDA- 2007/10/19 09:00 CRDT- 2007/07/21 09:00 PHST- 2006/01/08 00:00 [received] PHST- 2006/12/20 00:00 [accepted] PHST- 2007/07/21 09:00 [pubmed] PHST- 2007/10/19 09:00 [medline] PHST- 2007/07/21 09:00 [entrez] AID - 10.1007/s00167-006-0280-x [doi] PST - ppublish SO - Knee Surg Sports Traumatol Arthrosc. 2007 Jul;15(7):869-78. doi: 10.1007/s00167-006-0280-x. Epub 2007 Feb 15.