Gut microbiota profiling revealed the regulating effects of salidroside on iron metabolism in diabetic mice

Autor: Jing Shi, Qin Zhao, Dou Dou Hao, Hong Xia Miao, Sha Wan, Chao Hua Zhou, Si Yu Wang, Si Yuan Chen, Jin Shang, Tian Hang Feng
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Frontiers in Endocrinology, Vol 13 (2022)
Druh dokumentu: article
ISSN: 1664-2392
DOI: 10.3389/fendo.2022.1014577
Popis: BackgroundDiabetes is a common metabolic disease that is associated with gut microbiota dysbiosis and iron metabolism. Salidroside (SAL) is the main ingredient of the traditional Chinese herb Rhodiola, previous studies have shown that SAL could reshape the gut microbiota and limit iron accumulation. Therefore, it is possible that SAL can act as an alternative therapy for diabetes, and its underlying mechanism is worth exploring.MethodsSAL was used to treat diabetic db/db mice. Serum glucose and iron levels and the histopathology of myocardial fibres were evaluated. The gut microbiota composition was determined by 16S rRNA Illumina sequencing technology.ResultsTreatment with SAL significantly reduced blood glucose and ameliorated diabetic cardiomyopathy in diabetic db/db mice, which was accompanied by inhibited ferroptosis and iron accumulation. Furthermore, the 16S rRNA sequencing results showed that SAL induced a change in the gut microbiota composition. Overall, SAL could increase the proportion of probiotic bacteria and decrease Lactobacillus to improve gut microbiota. Specifically, SAL increased the ratio of Bacteroidetes to Firmicutes in diabetic mice. The most significant biomarker was the genus Lactobacillus between the MD group and the SAL group. In addition, COG and KEGG analyses suggested that SAL mainly participated in nutrient metabolism, among them iron metabolism was associated with the abundance of Lactobacillus.ConclusionsSAL could reduce the glucose level and protect against diabetic cardiomyopathy in diabetic mice, which might be mediated by the change in the gut microbiota and the regulation of iron metabolism. The findings suggested that SAL was a promising complementary option for diabetes therapy.
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