Effects of 25-hydroxyvitamin D on bone microstructure in T2MD rats.

Objective: This study aims to explore the effects of 25-hydroxyvitamin D on the bone microstructure of rats with type 2 diabetes mellitus (T2MD).

Methods: 40 male Wistar rats were randomly selected for T2MD modeling and injected with streptozotocin solution. The rats in the control group (n=19) were fed with common feed. 25-hydroxyvitamin D was injected into rats with successful modeling results (Treatment group, n=15). The remaining rats were considered as the model group (n=16). The enzyme-linked immunosorbent assay was adopted to determine bone gla protein (BGP) and tartrate-resistant acid phosphatase (TRACP), and an X-ray bone densitometer were applied to observe the vertebral sections.

Results: The activity levels of blood glucose, triglyceride, total cholesterol and TRACP in the model group were higher than those in the treatment group and the control group (p⟨0.01), while serum calcium, phosphorus, BGP, ALP, and glycosylated hemoglobin, various indicators of rats in the model group were lower than those in the treatment group and the control group (p⟨0.05).

Conclusions: It is feasible to treat rats with T2MD with 25-hydroxyvitamin D, which can maintain the integrity of bone microstructure and increase the bone health.