Abstract:
:miRNA-10a is rhythmically expressed and regulates genes involved in lipid and glucose metabolism. However, the effects of miRNA-10a on obesity and glucose intolerance, as well as on the diurnal pattern of expression of circadian clock genes, remain unknown. We explored the effects of miRNA-10a-5p on insulin resistance and on the diurnal patterns of serum triglycerides and gut microbiota in high-fat diet- (HFD-) fed mice. The results showed that oral administration of miRNA-10a-5p significantly prevented body weight gain and improved glucose tolerance and insulin sensitivity in HFD-fed mice. Administration of miRNA-10a-5p also maintained the diurnal rhythm of Clock, Per2, and Cry1 expression, as well as serum glucose and triglyceride levels. Surprisingly, the diurnal oscillations of three genera of microbes, Oscillospira, Ruminococcus, and Lachnospiraceae, disrupted by HFD feeding, maintained by administration of miRNA-10a-5p. Moreover, a strong positive correlation was found between hepatic Clock expression and relative abundance of Lachnospiraceae, both in control mice (r = 0.877) and in mice administered miRNA-10a-5p (r = 0.853). Furthermore, we found that along with changes in Lachnospiraceae abundance, butyrate content in the feces maintained a diurnal rhythm after miRNA-10a-5p administration in HFD-fed mice. In conclusion, we suggest that miRNA-10a-5p may improve HFD-induced glucose intolerance and insulin resistance through the modulation of the diurnal rhythm of Lachnospiraceae and its metabolite butyrate. Therefore, miRNA-10a-5p may have preventative properties in subjects with metabolic disorders.
journal_name
Mediators Inflammjournal_title
Mediators of inflammationauthors
Guo Y,Zhu X,Zeng S,He M,Xing X,Wang Cdoi
10.1155/2020/8192187subject
Has Abstractpub_date
2020-08-17 00:00:00pages
8192187eissn
0962-9351issn
1466-1861journal_volume
2020pub_type
杂志文章abstract::Invertebrates do not display the level of sophistication in immune reactivity characteristic of mammals and other 'higher' vertebrates. Their great number and diversity of forms, however, reflect their evolutionary success and hence they must have effective mechanisms of defence to deal with parasites and pathogens an...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/S0962935196000014
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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doi:10.1155/2015/642503
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2015/516740
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journal_title:Mediators of inflammation
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doi:10.1155/2014/438070
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journal_title:Mediators of inflammation
pub_type: 杂志文章
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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doi:10.1155/2019/6453296
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journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/S0962935196000312
更新日期:1996-01-01 00:00:00
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journal_title:Mediators of inflammation
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doi:10.1155/2015/691491
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journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2010/903295
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journal_title:Mediators of inflammation
pub_type: 杂志文章
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
pub_type: 临床试验,杂志文章
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更新日期:2016-01-01 00:00:00