Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity.
Bone is the living composite biomaterial having unique structural property. Presently, there is a considerable gap in our understanding of bone structure and composition in the native state, particularly with respect to the trabecular bone, which is metabolically more active than cortical bones, and...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24386209/pdf/?tool=EBI |
| _version_ | 1818575155096453120 |
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| author | Ratan Kumar Rai Tarun Barbhuyan Chandan Singh Monika Mittal Mohd Parvez Khan Neeraj Sinha Naibedya Chattopadhyay |
| author_facet | Ratan Kumar Rai Tarun Barbhuyan Chandan Singh Monika Mittal Mohd Parvez Khan Neeraj Sinha Naibedya Chattopadhyay |
| author_sort | Ratan Kumar Rai |
| collection | DOAJ |
| description | Bone is the living composite biomaterial having unique structural property. Presently, there is a considerable gap in our understanding of bone structure and composition in the native state, particularly with respect to the trabecular bone, which is metabolically more active than cortical bones, and is readily lost in post-menopausal osteoporosis. We used solid-state nuclear magnetic resonance (NMR) to compare trabecular bone structure and composition in the native state between normal, bone loss and bone restoration conditions in rat. Trabecular osteopenia was induced by lactation as well as prolonged estrogen deficiency (bilateral ovariectomy, Ovx). Ovx rats with established osteopenia were administered with PTH (parathyroid hormone, trabecular restoration group), and restoration was allowed to become comparable to sham Ovx (control) group using bone mineral density (BMD) and µCT determinants. We used a technique combining (1)H NMR spectroscopy with (31)P and (13)C to measure various NMR parameters described below. Our results revealed that trabecular bones had diminished total water content, inorganic phosphorus NMR relaxation time (T1) and space between the collagen and inorganic phosphorus in the osteopenic groups compared to control, and these changes were significantly reversed in the bone restoration group. Remarkably, bound water was decreased in both osteopenic and bone restoration groups compared to control. Total water and T1 correlated strongly with trabecular bone density, volume, thickness, connectivity, spacing and resistance to compression. Bound water did not correlate with any of the microarchitectural and compression parameters. We conclude that total water, T1 and atomic space between the crystal and organic surface are altered in the trabecular bones of osteopenic rats, and PTH reverses these parameters. Furthermore, from these data, it appears that total water and T1 could serve as trabecular surrogates of micro-architecture and compression strength. |
| first_indexed | 2024-12-15T00:36:30Z |
| format | Article |
| id | doaj.art-f996b4926ee8430082b54bc01c08e11d |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-15T00:36:30Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-f996b4926ee8430082b54bc01c08e11d2022-12-21T22:41:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01812e8347810.1371/journal.pone.0083478Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity.Ratan Kumar RaiTarun BarbhuyanChandan SinghMonika MittalMohd Parvez KhanNeeraj SinhaNaibedya ChattopadhyayBone is the living composite biomaterial having unique structural property. Presently, there is a considerable gap in our understanding of bone structure and composition in the native state, particularly with respect to the trabecular bone, which is metabolically more active than cortical bones, and is readily lost in post-menopausal osteoporosis. We used solid-state nuclear magnetic resonance (NMR) to compare trabecular bone structure and composition in the native state between normal, bone loss and bone restoration conditions in rat. Trabecular osteopenia was induced by lactation as well as prolonged estrogen deficiency (bilateral ovariectomy, Ovx). Ovx rats with established osteopenia were administered with PTH (parathyroid hormone, trabecular restoration group), and restoration was allowed to become comparable to sham Ovx (control) group using bone mineral density (BMD) and µCT determinants. We used a technique combining (1)H NMR spectroscopy with (31)P and (13)C to measure various NMR parameters described below. Our results revealed that trabecular bones had diminished total water content, inorganic phosphorus NMR relaxation time (T1) and space between the collagen and inorganic phosphorus in the osteopenic groups compared to control, and these changes were significantly reversed in the bone restoration group. Remarkably, bound water was decreased in both osteopenic and bone restoration groups compared to control. Total water and T1 correlated strongly with trabecular bone density, volume, thickness, connectivity, spacing and resistance to compression. Bound water did not correlate with any of the microarchitectural and compression parameters. We conclude that total water, T1 and atomic space between the crystal and organic surface are altered in the trabecular bones of osteopenic rats, and PTH reverses these parameters. Furthermore, from these data, it appears that total water and T1 could serve as trabecular surrogates of micro-architecture and compression strength.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24386209/pdf/?tool=EBI |
| spellingShingle | Ratan Kumar Rai Tarun Barbhuyan Chandan Singh Monika Mittal Mohd Parvez Khan Neeraj Sinha Naibedya Chattopadhyay Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity. PLoS ONE |
| title | Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity. |
| title_full | Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity. |
| title_fullStr | Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity. |
| title_full_unstemmed | Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity. |
| title_short | Total water, phosphorus relaxation and inter-atomic organic to inorganic interface are new determinants of trabecular bone integrity. |
| title_sort | total water phosphorus relaxation and inter atomic organic to inorganic interface are new determinants of trabecular bone integrity |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24386209/pdf/?tool=EBI |
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