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Nutrients 2016, 8(8), 519; doi:10.3390/nu8080519

Mucosal MicroRNAs Expression Profiles before and after Exclusive Enteral Nutrition Therapy in Adult Patients with Crohn’s Disease

Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing 210002, China
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Received: 12 July 2016 / Revised: 7 August 2016 / Accepted: 15 August 2016 / Published: 22 August 2016
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Abstract

MicroRNAs (miRNAs) have been shown to be important for the pathogenesis of Crohn’s disease (CD). Exclusive enteral nutrition (EEN) is an effective therapy for inducing remission in CD. We aimed to investigate the alteration of miRNAs expression profile in the terminal ileal mucosa of CD patients before and after EEN. Twenty-five patients and ten healthy individuals were included. MiRNAs expression profile was firstly assessed using microarray technology and then validation was performed by qRT-PCR. The correlations between miRNAs and CD activity index (CDAI) score and serum C–reactive protein (CRP) level were also evaluated. Microarray analysis showed that mucosal miRNAs expression profile after EEN therapy was significantly changed compared with inflamed mucosa before treatment, and was most similar to the healthy one among all CD groups. Altered expressions of hsa-miR-192-5p, hsa-miR-423-3p, hsa-miR-99a-5p, hsa-miR-124-3p, hsa-miR-301a-5p, hsa-miR-495-5p, and hsa-let-7b-5p were confirmed by qRT-PCR. hsa-let-7b-5p was significantly correlated with serum CRP levels before and after EEN treatment (r = −0.518, p = 0.008, and r = −0.569, p = 0.003). Our study showed EEN induction therapy was associated with a trend for normalizing of the mucosal miRNAs expression profile, and expression of mucosal hsa-let-7b-5p was correlated with serum CRP level in patients with CD. View Full-Text
Keywords: Crohn’s disease; exclusive enteral nutrition; microRNAs expression Crohn’s disease; exclusive enteral nutrition; microRNAs expression
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MDPI and ACS Style

Guo, Z.; Gong, J.; Li, Y.; Gu, L.; Cao, L.; Wang, Z.; Zhu, W.; Li, J. Mucosal MicroRNAs Expression Profiles before and after Exclusive Enteral Nutrition Therapy in Adult Patients with Crohn’s Disease. Nutrients 2016, 8, 519.

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