期刊
JOURNAL OF INORGANIC BIOCHEMISTRY
卷 98, 期 12, 页码 2032-2038出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jinorgbio.2004.09.006
关键词
atherosclerosis; calcification; electron rnicroscopy; IR-spectroscopy; X-ray diffraction
Atherosclerotic plaques (six cases) with well-documented clinical history were analysed using histology, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDX) spectroscopy, infrared spectroscopy (IR), thermogravimetry (TG), and high -resolution synchrotron X-ray diffraction. All samples contained about 60-70 wt% biological carbonated apatite (in dry state) in a nanocrystalline form with particle sizes of about 20 nm. Structurally, there are strong similarities to bone mineral. Ultrastructural investigations documented typical calcospherites, mineralisation processes starting at collagen fibrils and ring-shaped crystalline mineralised structures. There were no significant ultrastructural or chemical differences between the calcifications of individual patients. (C) 2004 Elsevier Inc. All rights reserved.
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