| Autor: |
Szekanecz Z; Department of Rheumatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Besnyi A; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Kónya P; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Füri J; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Király E; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary.; Kentucky Geological Survey, University of Kentucky, Lexington, KY 40506, USA., Bertalan É; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Falus G; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Udvardi B; TÜV Rheinland InterCert Ltd., 1143 Budapest, Hungary., Kovács-Kis V; HUN-REN Centre for Energy Research, 1121 Budapest, Hungary., Andrássy L; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Maros G; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Fancsik T; Supervisory Authority for Regulatory Affairs, Geological Survey, 1143 Budapest, Hungary., Pethő Z; Department of Rheumatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Gomez I; Department of Rheumatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.; National Institute of Rheumatology and Physiotherapy, 1023 Budapest, Hungary., Horváth Á; Department of Rheumatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Gulyás K; Department of Rheumatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Juhász B; Department of Oncology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Hodosi K; Department of Rheumatology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Sándor Z; National Institute of Oncology, 1122 Budapest, Hungary., Bhattoa HP; Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary., Kovács IJ; HUN-REN Institute of Earth Physics and Space Science, 1052 Budapest, Hungary. |
| Abstrakt: |
Some studies have used physical techniques for the assessment of bone structure and composition. However, very few studies applied multiple techniques, such as those described below, at the same time. The aim of our study was to determine the chemical and mineralogical/organic composition of bovine tibial bone samples using geophysical/geochemical reference techniques. X-ray diffraction (XRD), thermogravimetry (TG), Fourier-transform infrared spectrometry with attenuated total reflectance accessory (FTIR-ATR), inductively coupled mass spectrometry (ICP-MS) and inductively coupled optical emission spectrometry (ICP-OES) were applied to measure the organic and inorganic composition of 14 bovine bone samples. In addition, peripheral quantitative CT (QCT) was used to assess BMD in these bones. We were able to define the total composition of the studied bone samples. ICP-OES and ICP-MS techniques were used to determine the major and trace element composition. The X-ray analysis could detect inorganic crystalline compounds of bones, such as bioapatite, and its degree of ordering, indicating whether the bones belong to a younger or older individual. The total volatile content of the samples was calculated using TG and resulted in about 35 weight% (wt%). This, together with the 65 wt% total resulting from the chemical analysis (i.e., inorganic components), yielded a total approaching 100 wt%. As a large portion of the volatile content (H 2 O, CO 2 , etc.) was liberated from the organic components and, subordinately, from bioapatite, it could be concluded that the volatile-to-solid ratio of the examined bone samples was ~35:65. The FTIR-ATR analysis revealed that the organic portion consists of collagens containing amide groups, as their typical bands (OH, CH, CO, NC) were clearly identified in the infrared spectra. Numerous parameters of bone composition correlated with BMD as determined by QCT. In conclusion, we performed a complex evaluation of bovine bones to test multiple geophysical/geochemical techniques in bone research in association with QCT bone densitometry. From a medical point of view, the composition of the studied bones could be reliably examined by these methods. |
