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Effects of teriparatide and low-intensity aerobic exercise on osteopenia in type 2 diabetes mellitus rats.
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- Author(s): Abe K;Abe K; Miyakoshi N; Miyakoshi N; Kasukawa Y; Kasukawa Y; Nozaka K; Nozaka K; Tsuchie H; Tsuchie H; Sato C; Sato C; Saito H; Saito H; Shoji R; Shoji R; Shimada Y; Shimada Y
- Source:
Journal of bone and mineral metabolism [J Bone Miner Metab] 2022 Mar; Vol. 40 (2), pp. 229-239. Date of Electronic Publication: 2022 Jan 28.- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Japanese Society of Bone and Mineral Metabolism Country of Publication: Japan NLM ID: 9436705 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1435-5604 (Electronic) Linking ISSN: 09148779 NLM ISO Abbreviation: J Bone Miner Metab Subsets: MEDLINE
- Publication Information: Original Publication: Tokyo : Japanese Society of Bone and Mineral Metabolism, [1988-
- Subject Terms:
- Abstract: Introduction: In patients with type 2 diabetes mellitus (T2DM), bone fragility increases fracture risk. Teriparatide (TPTD) improves bone strength, and exercise therapy suppresses blood glucose levels in T2DM. In this study, the combined effects of TPTD and exercise therapy on trabecular and cortical bone were examined in advanced T2DM model rats.
Materials and Methods: Thirty-week-old Otsuka Long-Evans Tokushima Fatty rats were divided into four groups (n = 9-10 in each group at two time points): Cont group (vehicle-treated control), TPTD group (TPTD 30 μg/kg injected subcutaneously, 3 times/week), Exe group (treadmill exercise, 10 m/min, 60 min/day, 5 times/week), and Comb group (TPTD-treated and treadmill exercise combined). Five and 10 weeks after treatment, bone mineral density (BMD), bone strength, and bone micro-architecture were measured.
Results: TPTD and combined treatment significantly increased BMDs of the lumbar spine and femur compared to the Cont group (p < 0.05 to p < 0.01). In the three-point bending test of the femur, only combined treatment increased the maximum load at 5 weeks compared with the Cont and Exe groups (p < 0.01). In the compression test of the distal femoral metaphysis, both TPTD and combined treatment increased the trabecular bone strength compared with the Cont and Exe groups (p < 0.05 to p < 0.01). Although TPTD and combined treatment improved the micro-architecture of trabecular bone (p < 0.05 to p < 0.01), only combined treatment improved the micro-structures of cortical bone from 5 weeks of treatment (p < 0.05 to p < 0.01).
Conclusion: The combination of TPTD and treadmill exercise increased BMD and trabecular and cortical bone strength of the femur with improved micro-architecture in T2DM model rats.
(© 2021. The Japanese Society Bone and Mineral Research.) - References: IDF Diabetes Atlas 9th edition 2019. https://www.diabetesatlas.org/en/ . Accessed 8 May 2021.
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- Accession Number: 0 (Bone Density Conservation Agents)
10T9CSU89I (Teriparatide) - Publication Date: Date Created: 20220128 Date Completed: 20220311 Latest Revision: 20220531
- Publication Date: 20240105
- Accession Number: 10.1007/s00774-021-01289-0
- Accession Number: 35089442
- Source:
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