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• W4285588892 abstract "Abstract Background Iron and vitamin D (VD) is essential to health. Previous studies have shown that iron homeostasis has a potential effect on VD metabolism, but the mechanism is not fully understood. Objectives To explore the relationship between VD metabolism and iron metabolism, as well as the regulatory mechanism of iron on VD metabolism. Methods 40 male rats were fed adaptively for 7 days and randomly divided into control (C, n = 6 normal diet) group and model (M, n = 24 iron deficient diet) by simple randomization, the latter was used to establish iron deficiency anemia (IDA) model. After 6 weeks of feeding, the M group was randomly divided into: iron deficiency group (DFe), low iron group (LFe), medium iron group (MFe) and high iron group (HFe) by block randomization. Different doses of iron dextran (based on iron content (100 g·bw·d)): 0, 1.1, 3.3 and 9.9 mg) were given respectively. After 4 weeks, the rats were anesthetized with 8% chloral hydrate, Blood (collected from the abdominal aorta), liver and kidney tissues were collected. The serum and tissues were separately packed and frozen at -80℃ for testing. Results The results showed that the levels of hemoglobin (Hb), red blood cell (RBC), serum iron (SI), liver iron, and kidney iron in DFe group were lower than those in the other four groups, while the levels of total iron-binding capacity (TIBC), transferrin (TF) and transferrin receptor (Tfr) in DFe group were higher than those in other groups; The serum levels of 25-(OH)D 3 and 1,25-(OH) 2 D 3 in DFe group were significantly lower than those in C group ( P < 0.05). The correlation analysis showed that the levels of 25-(OH)D 3 and 1,25-(OH) 2 D 3 were negatively correlated with TIBC, TF and Tfr no correlation with SI. Western blotting, immunofluorescence, and q-PCR results showed that compared with C group, the protein and gene expressions of CYP2R1, CYP27A1, and CYP24A1 in DFe group were down-regulated, and the expression of CYP27B1 protein and gene was up-regulated in DFe group. Conclusion Iron may be involved in the metabolism of VD 3 by regulating the expression of VD 3 hydroxylase, suggesting that appropriate iron supplementation might promote the activation of VD 3 ." @default.
• W4285588892 created "2022-07-16" @default.
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• W4285588892 date "2022-07-16" @default.
• W4285588892 modified "2023-10-17" @default.
• W4285588892 title "The effect of iron dextran on vitamin D3 metabolism in SD rats" @default.
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• W4285588892 doi "https://doi.org/10.1186/s12986-022-00681-5" @default.
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