Teriparatide Improves Bone and Lipid Metabolism in a Male Rat Model of Type 2 Diabetes Mellitus.

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ID: 43303
2019
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Abstract
Osteoporosis is a complication of diabetes mellitus (DM). The pathology of diabetic osteoporosis is distinct from postmenopausal osteoporosis, and there are no specific treatment guidelines for diabetic osteoporosis. In the present study, this issue was addressed by evaluating the effect of osteoporosis medications, such as the anabolic agent parathyroid hormone (teriparatide; TPTD) and the anti-resorptive agents calcitonin (elcatonin; ECT) and bisphosphonate (risedronate; RIS), on bone metabolism as well as on glucose and lipid metabolism in spontaneously diabetic Torii fatty rats (SDT fatty rats), which are a model of type 2 DM (T2DM). The medicines were injected subcutaneously into 8-week-old male SDT fatty rats three times weekly for 8 weeks. TPTD treatment in SDT fatty rats increased the osteoblast number and function on trabecular bone in vertebrae, and increased the trabecular bone mass, bone mineral density (BMD), and mechanical strength of vertebrae. Additionally, TPTD improved cortical bone structure and increased BMD. RIS decreased the osteoclast number and function, which led to an increase in vertebral bone mineral content and BMD in the femoral diaphysis, while mechanical strength was increased in the vertebrae. ECT showed no clear effects on bone mass or metabolism. Similar to diabetic lesions, all the drugs had no effects on hyperglycemia, pancreas morphology, or serum insulin and glucagon levels. However, triglyceride levels and lipid droplets in fatty liver were decreased in the TPTD group. These results suggest that TPTD may be useful for treating fatty liver in addition to osteoporosis in T2DM.
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nomura2019teriparatideendocrinology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Nomura, Sachiko;Kitami, Akihiro;Takao-Kawabata, Ryoko;Takakura, Aya;Nakatsugawa, Momoko;Kono, Ryohei;Maeno, Akihiro;Tokuda, Akihiko;Isogai, Yukihiro;Ishizuya, Toshinori;Utsunomiya, Hirotoshi;Nakamura, Misa;
Journal endocrinology
Year 2019
DOI
en.2019-00239
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Keywords
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