PMID- 31003049 OWN - NLM STAT- MEDLINE DCOM- 20190826 LR - 20190826 IS - 1873-3557 (Electronic) IS - 1386-1425 (Linking) VI - 218 DP - 2019 Jul 5 TI - Fourier transform infrared spectroscopy research on subchondral bone in osteoarthritis. PG - 243-247 LID - S1386-1425(19)30395-6 [pii] LID - 10.1016/j.saa.2019.04.020 [doi] AB - Osteoarthritis (OA) is not only related to the degradation of articular cartilage, but also possibly to the changes of subchondral bone. The purpose of this study was to assess whether specific differences could be resolved from bone composition, as also contributed to OA. These differences were assessed by using Fourier transform infrared spectroscopy (FTIRS). The main parameters including mineral content, carbonate content, crystallinity, collagen cross-linking ratio (XLR) and acid phosphate content were represented with characteristic peak integration. It was found that mineral and carbonate content varied significantly with depths at different OA stages. Mineral content increased with depth in healthy samples, while carbonate content showed opposite trend. The mineral content reduced obviously with OA duration, which was different with carbonate decreasing only at early stage of OA. In addition, the content of acid phosphate, collagen maturity (XLR) and crystallinity slight varied with the OA aggravation. Therefore, the changes in subchondral bone were significantly associated with cartilage degeneration and OA, the associated parameters should be targeted for OA therapies. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Zhai, Mingyang AU - Zhai M AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. FAU - Lu, Yanfei AU - Lu Y AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. FAU - Fu, Juanjuan AU - Fu J AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. FAU - Zhu, Yongkang AU - Zhu Y AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. FAU - Zhao, Yuan AU - Zhao Y AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. FAU - Shang, Linwei AU - Shang L AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. FAU - Yin, Jianhua AU - Yin J AD - Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. Electronic address: yin@nuaa.edu.cn. LA - eng PT - Journal Article DEP - 20190411 PL - England TA - Spectrochim Acta A Mol Biomol Spectrosc JT - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JID - 9602533 RN - 0 (Carbonates) RN - 0 (Minerals) RN - 0 (Phosphates) RN - 9007-34-5 (Collagen) RN - 91D9GV0Z28 (Durapatite) MH - Animals MH - Bone and Bones/chemistry/*pathology MH - Carbonates/analysis MH - Collagen/analysis MH - Dogs MH - Durapatite/analysis MH - Minerals/analysis MH - Osteoarthritis/*pathology MH - Phosphates/analysis MH - Spectroscopy, Fourier Transform Infrared/*methods OTO - NOTNLM OT - Collagen cross-link ratio OT - Crystallinity OT - Fourier transform infrared spectroscopy OT - Hydroxyapatite OT - Mineral content OT - Osteoarthritis OT - Subchondral bone EDAT- 2019/04/20 06:00 MHDA- 2019/08/27 06:00 CRDT- 2019/04/20 06:00 PHST- 2018/11/22 00:00 [received] PHST- 2019/04/10 00:00 [revised] PHST- 2019/04/10 00:00 [accepted] PHST- 2019/04/20 06:00 [pubmed] PHST- 2019/08/27 06:00 [medline] PHST- 2019/04/20 06:00 [entrez] AID - S1386-1425(19)30395-6 [pii] AID - 10.1016/j.saa.2019.04.020 [doi] PST - ppublish SO - Spectrochim Acta A Mol Biomol Spectrosc. 2019 Jul 5;218:243-247. doi: 10.1016/j.saa.2019.04.020. Epub 2019 Apr 11.