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Life sciences · Journal article
BMC Endocrine Disorders · August 17, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is a cross-sectional observational study using 16S rRNA sequencing and fecal metabolomics to characterize microbiota and metabolite differences across levels of metabolic complication burden in Chinese adolescents with obesity. The study reports graded associations between complication burden, bile acid levels, bile acid-metabolizing taxa enrichment, and reduced short-chain fatty acid-producing taxa, but provides no sample size, effect sizes, confidence intervals, or p-values, and explicitly calls for further validation.
Cross-sectional observational study with stratification. Chinese adolescents with obesity; specific eligibility criteria and setting not detailed in source. Intervention: Stratification by metabolic complication burden; 16S rRNA sequencing and fecal metabolomics profiling. Compared with: Comparison across strata of metabolic complication burden; no explicit external control group stated.
Primary bile acid levels were higher in groups with greater complication burden Taxa previously associated with bile acid metabolism were enriched in higher complication burden groups Abundance of putative short-chain fatty acid-producing taxa was lower in groups with greater complication burden
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The source did not state who this applies to in practice.
Cross-sectional observational study with 16S sequencing and metabolomics in a single Chinese pediatric cohort identifying associations that the authors themselves state warrant further validation in longitudinal and mechanistic studies.
As stated by the source record.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
What is missing. This record has no reported figures. That is a gap in the analysis, not a judgement about the study.
Pediatric obesity presents with diverse metabolic phenotypes, yet the gut microbiota and metabolite signatures associated with obesity-related metabolic complications remain poorly defined. Here, we applied 16S rRNA gene sequencing and untargeted fecal metabolomics to investigate microbial and metabolic alterations in children with obesity, stratified according to metabolic complication burden. Stratification revealed graded differences in microbial composition and metabolite profiles across levels of metabolic complication burden. Children with more complications exhibited elevated levels of primary bile acids, accompanied by enrichment of taxa previously associated with bile acid metabolism. Conversely, the abundance of short-chain fatty acid (SCFA)-producing taxa was lower in groups with greater complication burden, suggesting potentially reduced fermentative capacity. These patterns differed from those previously reported in adult obesity and may reflect the distinct developmental context of the pediatric gut ecosystem. Our findings highlight the value of complication-based stratification in characterizing obesity-related metabolic heterogeneity and identify microbiota-metabolite associations that warrant further validation in longitudinal and mechanistic studies. Children with obesity were stratified according to metabolic complication burden. Primary bile acid levels were higher in groups with greater complication burden, accompanied by enrichment of taxa previously associated with bile acid metabolism. The abundance of putative SCFA-producing taxa was lower in groups with greater complication burden. Graded microbiota-metabolite differences were observed across levels of metabolic complication burden. Microbiota-metabolite signatures may help characterize the metabolic heterogeneity of pediatric obesity and warrant further validation.
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