Trial reportEuropean journal of nutrition2025
Characterizing gut microbial dysbiosis and exploring the effect of prebiotic fiber supplementation in patients with COPD.
Trial report in European journal of nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03807310 (The Effect of Targeted Nutrient Supplementation on Physical Activity and Healthy Related Quality of Life in COPD), which is not on this map. Cited by 12 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
The Effect of Targeted Nutrient Supplementation on Physical Activity and Healthy Related Quality of Life in COPD
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Global research status and development trends of chronic obstructive pulmonary disease and gut microbiota: a comprehensive analysis based on bibliometrics and knowledge visualization.Frontiers in microbiology · 2026Pooled it
- Axial Connectivity of the Lung Microbiome: A Review of Interorgan Crosstalk.Comprehensive physiology · 2026Review
- Review
- The Wine Ecosystem as a Reservoir for Potential Probiotics: A Comparative In Vitro Evaluation ofFoods (Basel, Switzerland) · 2026Article
- The gut as a central hub for multi-organ crosstalk in aging.Cellular and molecular life sciences : CMLS · 2026Review
- Comparative Study on the In Vitro Fermentation Characteristics of Three Plant-Derived Polysaccharides with Different Structural Compositions.Foods (Basel, Switzerland) · 2026Article
- The role of the gut-lung axis in persistent inflammation and disease progression in chronic obstructive pulmonary disease: mechanistic evidence and therapeutic implications.Frontiers in immunology · 2026Review
- Targeting the gut-lung axis in COPD: from microbial metabolites to fecal microbiota transplantation.Frontiers in microbiology · 2026Review
- The gut-lung axis in COPD: immunomodulatory roles of gut microbiota and novel therapeutic strategies.Frontiers in immunology · 2026Review
- Mechanisms by which complex carbohydrates influence immune imbalance in COPD via the gut-lung axis: from colonic fermentation to pulmonary immune responses.Frontiers in nutrition · 2026Review
- Global Research Trends in Comorbidity Between Chronic Obstructive Pulmonary Disease and Gastro-Oesophageal Reflux Disease: A Bibliometric Study.International journal of chronic obstructive pulmonary disease · 2026Review
- Research Advances on the Impact of Gut Microbiota on COPD: Exploring New Perspectives on the Microbiota-Gut-Lung Axis.Current microbiology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
purposeChronic Obstructive Pulmonary Disease (COPD) is associated with poor dietary quality that may lead to gut microbiota imbalances. A healthy gut microbiome contributes to metabolic health and immune function through production of metabolites like short-chain fatty acids. Prebiotic fibers positively influence microbiota by promoting the production of beneficial metabolites. This study aimed to assess altered gut microbiota composition in patients with COPD and to explore the effects of targeted multi-nutrient supplementation including prebiotic fibers on these outcomes.
methodsAn exploratory analysis was performed within the double-blinded placebo-controlled NUTRECOVER-trial to gain preliminary insights into the effects of the nutritional intervention. The cross-sectional baseline comparison included 32 patients with COPD and 32 age-matched healthy references. Subsequently, patients were randomly assigned to a multi-nutrient supplement including prebiotic fibers, vitamin D, tryptophan, and N-3 long-chain poly unsaturated fatty acids (n = 16) or placebo (n = 16) for three months. Stool samples, blood samples and food diaries were obtained before and after the intervention.
resultsHigher relative abundance of Bacteroidota (0.50 ± 0.13 vs. 0.41 ± 0.14, p = 0.010), and lower Firmicutes (0.40 ± 0.14 vs. 0.49 ± 0.12, p = 0.007) were found in patients compared with healthy controls. Patients also showed lower alpha diversity (5.80 ± 0.32 vs. 5.99 ± 0.30, p = 0.017) and higher inter-individual variability (0.51 ± 0.16 vs. 0.48 ± 0.10, p < 0.001). No effects of the nutritional intervention on gut microbiome and systemic inflammation were shown at 3 months.
conclusionPatients with COPD exhibit differences in gut microbiota composition compared with healthy controls. Three months of multi-nutrient supplementation is insufficient to show changes in microbiome composition. The ongoing NUTRECOVER-trial will show the potential of long-term prebiotic fiber supplementation in this susceptible patient population. TRIAL REGISTRATION NUMBER: clinicaltrials.gov: NCT03807310.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.