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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Cho, Ky Young |
| Abstract | Background The association between the gut microbiota and pediatric obesity was analyzed in a cross-sectional study. A prospective study of obese children was conducted to assess the gut microbial alterations after a weight change. We collected fecal samples from obese children before and after a 2-month weight reduction program that consisted of individual counseling for nutritional education and physical activity, and we performed 16S rRNA gene amplicon sequencing using an Illumina MiSeq platform. Results Thirty-six participants, aged 7 to 18 years, were classified into the fat loss (n = 17) and the fat gain (n = 19) groups according to the change in total body fat (%) after the intervention. The baseline analysis of the gut microbiota in the preintervention stages showed dysbiotic features of both groups compared with those of normal-weight children. In the fat loss group, significantly decreased proportions of Bacteroidetes phylum, Bacteroidia class, Bacteroidales order, Bacteroidaceae family, and Bacteroides genus, along with increased proportions of Firmicutes phylum, Clostridia class, and Clostridiales order, were observed after intervention. The microbial richness was significantly reduced, without a change in beta diversity in the fat loss group. The fat gain group showed significantly deceased proportions of Firmicutes phylum, Clostridia class, Clostridiales order, Lachnospiraceae family, and Eubacterium hallii group genus, without a change in diversity after the intervention. According to the functional metabolic analysis by the Phylogenetic Investigation of Communities by Reconstruction of Unobserved States 2, the “Nitrate Reduction VI” and “Aspartate Superpathway” pathways were predicted to increase significantly in the fat loss group. The cooccurring networks of genera were constructed and showed the different microbes that drove the changes between the pre- and postintervention stages in the fat loss and fat gain groups. Conclusions This study demonstrated that lifestyle modifications can impact the composition, richness, and predicted functional profiles of the gut microbiota in obese children after weight changes. Trial registration ClinicalTrials.gov NCT03812497 , registration date January 23, 2019, retrospectively registered. |
| Related Links | https://bmcmicrobiol.biomedcentral.com/counter/pdf/10.1186/s12866-020-02002-3.pdf |
| Ending Page | 15 |
| Page Count | 15 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14712180 |
| DOI | 10.1186/s12866-020-02002-3 |
| Journal | BMC Microbiology |
| Issue Number | 1 |
| Volume Number | 21 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2021-01-06 |
| Access Restriction | Open |
| Subject Keyword | Microbiology Biological Microscopy Mycology Parasitology Virology Life Sciences Obesity Child 16S rRNA gene Gut microbiota Weight reduction programs |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology Microbiology (medical) |
| Journal Impact Factor | 4/2023 |
| 5-Year Journal Impact Factor | 4.6/2023 |
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