Journalartikel

Jahr der Veröffentlichung: 2021

Zeitschrift: International Journal of Molecular Sciences

Bandnummer: 22

Heftnummer: 16

eISSN: 1422-0067

Open Access Status: Gold

DOI Link: https://doi.org/10.3390/ijms22168699

Verlag: MDPI

Abstract: 
Natural smectites have demonstrated efficacy in the treatment of diarrhea. The present study evaluated the prophylactic effect of a diosmectite (FI5pp) on the clinical course, colon damage, expression of tight junction (TJ) proteins and the composition of the gut microbiota in dextran sulfate sodium (DSS) colitis. Diosmectite was administered daily to Balb/c mice from day 1 to 7 by oral gavage, followed by induction of acute DSS-colitis from day 8 to 14 ("Control", n = 6; "DSS", n = 10; "FI5pp + DSS", n = 11). Mice were sacrificed on day 21. Clinical symptoms (body weight, stool consistency and occult blood) were checked daily after colitis induction. Colon tissue was collected for histological damage scoring and quantification of tight junction protein expression. Stool samples were collected for microbiome analysis. Our study revealed prophylactic diosmectite treatment attenuated the severity of DSS colitis, which was apparent by significantly reduced weight loss (p = 0.022 vs. DSS), disease activity index (p = 0.0025 vs. DSS) and histological damage score (p = 0.023 vs. DSS). No significant effects were obtained for the expression of TJ proteins (claudin-2 and claudin-3) after diosmectite treatment. Characterization of the microbial composition by 16S amplicon NGS showed that diosmectite treatment modified the DSS-associated dysbiosis. Thus, diosmectites are promising candidates for therapeutic approaches to target intestinal inflammation and to identify possible underlying mechanisms of diosmectites in further studies.

Harvard-Zitierstil: Breitruck, A., Weigel, M., Hofrichter, J., Sempert, K., Kerkhoff, C., Mohebali, N., et al. (2021) Smectite as a Preventive Oral Treatment to Reduce Clinical Symptoms of DSS Induced Colitis in Balb/c Mice, International Journal of Molecular Sciences, 22(16), Article 8699. https://doi.org/10.3390/ijms22168699

APA-Zitierstil: Breitruck, A., Weigel, M., Hofrichter, J., Sempert, K., Kerkhoff, C., Mohebali, N., Mitzner, S., Hain, T., & Kreikemeyer, B. (2021). Smectite as a Preventive Oral Treatment to Reduce Clinical Symptoms of DSS Induced Colitis in Balb/c Mice. International Journal of Molecular Sciences. 22(16), Article 8699. https://doi.org/10.3390/ijms22168699