Bone tissue ultrastructural defects in a mouse model for osteogenesis imperfecta: a Raman spectroscopy study

Tsoching Chen; Kenneth M Kozloff; Steven A. Goldstein; Michael D. Morris

doi:10.1117/12.529352

1 July 2004 Bone tissue ultrastructural defects in a mouse model for osteogenesis imperfecta: a Raman spectroscopy study

Tsoching Chen, Kenneth M Kozloff, Steven A. Goldstein, Michael D. Morris

Author Affiliations +

Proceedings Volume 5321, Biomedical Vibrational Spectroscopy and Biohazard Detection Technologies; (2004) https://doi.org/10.1117/12.529352
Event: Biomedical Optics 2004, 2004, San Jose, CA, United States

Abstract

Osteogenesis imperfecta (OI) is genetic defect in which the genes that code for the α1(I) or α2(I) chains of type I collagen are defective. The defects often result in substitution of a bulky amino acid for glycine, causing formation of collagen that can not form the normal triple helix. Depending on the details of the defects, the outcomes range from controllable to lethal. This study focuses on OI type IV, a more common and moderately severe form of the disease. People with the disease have a substantial increase in the risk and rate of fracture. We examine the spectroscopic consequences of these defects, using a mouse model (BRTL) that mimics OI type IV. We compare Raman images from tibial cortical tissue of wild-type mice and BRTL mice with single copy of mutation and show that both mineral to matrix ratios and collagen inter-fibril cross-links are different in wild-type and mutant mice.

Citation Download Citation

Tsoching Chen, Kenneth M Kozloff, Steven A. Goldstein, and Michael D. Morris "Bone tissue ultrastructural defects in a mouse model for osteogenesis imperfecta: a Raman spectroscopy study", Proc. SPIE 5321, Biomedical Vibrational Spectroscopy and Biohazard Detection Technologies, (1 July 2004); https://doi.org/10.1117/12.529352

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