PMID- 29281127 OWN - NLM STAT- MEDLINE DCOM- 20191023 LR - 20191023 IS - 1523-4681 (Electronic) IS - 0884-0431 (Print) IS - 0884-0431 (Linking) VI - 33 IP - 5 DP - 2018 May TI - Bone Tissue Collagen Maturity and Mineral Content Increase With Sustained Hyperglycemia in the KK-Ay Murine Model of Type 2 Diabetes. PG - 921-929 LID - 10.1002/jbmr.3365 [doi] AB - Type 2 diabetes mellitus (T2DM) increases fracture risk for a given bone mineral density (BMD), which suggests that T2DM changes bone tissue properties independently of bone mass. In this study, we assessed the effects of hyperglycemia on bone tissue compositional properties, enzymatic collagen crosslinks, and advanced glycation end-products (AGEs) in the KK-Ay murine model of T2DM using Fourier transform infrared (FTIR) imaging and high-performance liquid chromatography (HPLC). Compared to KK-aa littermate controls (n = 8), proximal femoral bone tissue of KK-Ay mice (n = 14) exhibited increased collagen maturity, increased mineral content, and less heterogeneous mineral properties. AGE accumulation assessed by the concentration of pentosidine, as well as the concentrations of the nonenzymatic crosslinks hydroxylysylpyridinoline (HP) and lysyl pyridinoline (LP), did not differ in the proximal femurs of KK-Ay mice compared to controls. The observed differences in tissue-level compositional properties in the KK-Ay mice are consistent with bone that is older and echo observations of reduced remodeling in T2DM. (c) 2017 American Society for Bone and Mineral Research. CI - (c) 2017 American Society for Bone and Mineral Research. FAU - Hunt, Heather B AU - Hunt HB AD - Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA. FAU - Pearl, Jared C AU - Pearl JC AD - Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA. FAU - Diaz, David R AU - Diaz DR AD - Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA. FAU - King, Karen B AU - King KB AD - Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO, USA. AD - Surgical Service/Orthopaedic Service, Veterans Affairs Eastern Colorado Health Care System, Denver, CO, USA. FAU - Donnelly, Eve AU - Donnelly E AD - Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA. AD - Research Division, Hospital for Special Surgery, New York, NY, USA. LA - eng GR - K01 AR064314/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20180208 PL - England TA - J Bone Miner Res JT - Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research JID - 8610640 RN - 0 (Glycation End Products, Advanced) RN - 9007-34-5 (Collagen) SB - IM MH - Animals MH - *Bone Density MH - Collagen/*metabolism MH - Diabetes Mellitus, Experimental/*metabolism/pathology MH - Diabetes Mellitus, Type 2/*metabolism/pathology MH - Glycation End Products, Advanced/*metabolism MH - Hyperglycemia/*metabolism/pathology MH - Male MH - Mice PMC - PMC5935591 MID - NIHMS947497 OTO - NOTNLM OT - COLLAGEN: BONE MATRIX OT - GENETIC ANIMAL MODELS: ANIMAL MODELS OT - MATRIX MINERALIZATION: BONE MATRIX OT - OTHER: ANALYSIS/QUANTITATION OF BONE OT - OTHER: DISEASES AND DISORDERS OF/RELATED TO BONE COIS- Disclosures All authors state that they have no conflicts of interest. EDAT- 2017/12/28 06:00 MHDA- 2019/10/24 06:00 PMCR- 2019/05/01 CRDT- 2017/12/28 06:00 PHST- 2017/08/14 00:00 [received] PHST- 2017/12/01 00:00 [revised] PHST- 2017/12/13 00:00 [accepted] PHST- 2017/12/28 06:00 [pubmed] PHST- 2019/10/24 06:00 [medline] PHST- 2017/12/28 06:00 [entrez] PHST- 2019/05/01 00:00 [pmc-release] AID - 10.1002/jbmr.3365 [doi] PST - ppublish SO - J Bone Miner Res. 2018 May;33(5):921-929. doi: 10.1002/jbmr.3365. Epub 2018 Feb 8.