scholarly journals Gut microbiota composition in relation to intake of added sugar, sugar-sweetened beverages and artificially sweetened beverages in the Malmö Offspring Study

2020 ◽  
Author(s):  
Stina Ramne ◽  
Louise Brunkwall ◽  
Ulrika Ericson ◽  
Nicola Gray ◽  
Gunter G. C. Kuhnle ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Negative Binomial ◽  
Metagenomic Sequencing ◽  
Microbiota Composition ◽  
Multiple Testing Correction ◽  
Sugar Sweetened Beverages ◽  
Added Sugar ◽  
Sweetened Beverages ◽  
Gut Microbiota Composition ◽  
Artificially Sweetened Beverages

Abstract Purpose It has been suggested that a high intake of sugar or sweeteners may result in an unfavorable microbiota composition; however, evidence is lacking. Hence, in this exploratory epidemiological study, we aim to examine if intake of added sugar, sugar-sweetened beverages (SSBs) or artificially sweetened beverages (ASBs) associate with the gut microbiota composition. Methods Participants (18–70 years) in the Malmö Offspring Study have provided blood, urine, and fecal samples and completed both web-based 4 day food records and short food frequency questionnaires. The gut microbiota was assessed by 16S rRNA sequencing, processed in QIIME and matched to Greengenes (v.13.8), giving 64 included genera after filtering. Intake of added sugar (n = 1371) (also supported by the overnight urinary sugar biomarker in a subgroup n = 577), SSBs (n = 1086) and ASBs (n = 1085) were examined as exposures in negative binomial regressions. Results Various genera nominally associated with intake of added sugar, SSBs, and ASBs. Only the negative association between SSB intake and Lachnobacterium remained significant after multiple testing correction. A positive association between SSB intake and the Firmicutes:Bacteroidetes ratio was also observed. Conclusion In this wide population, the cross-sectional associations between added sugar and sweet beverage intake and the gut microbiota are modest, but the results suggest that SSB intake is associated negatively with the genus Lachnobacterium and positively with the Firmicutes:Bacteroidetes ratio. Larger studies, preferably using metagenomic sequencing, are needed to further evaluate if a link exists between intake of sugars and sweeteners and the human gut microbiota.

scholarly journals Diet quality, anthropometrics, and gut microbiota composition in healthy adults

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Anna M. Malinowska ◽  
Marcin Schmidt ◽  
Agata Chmurzynska
Keyword(s):  
Gut Microbiota ◽  
Energy Intake ◽  
Relative Abundance ◽  
Diet Quality ◽  
Healthy Eating Index ◽  
Metagenomic Sequencing ◽  
Microbiota Composition ◽  
Anthropometric Parameters ◽  
Gut Microbiota Composition ◽  
Dietary Indices

AbstractHuman gut microbiota may affect metabolism and health by synthesizing metabolites and processing of food components. Those processes are specific to genus and species (or even strain), and dietary intake and metabolic state (such as obesity) can affect the composition of gut microbiota. The aim of the study was to assess the effect of dietary patterns and intake of several groups of food products and macronutrients, as well as the impact of anthropometric parameters on gut microbiota composition.The study group consisted of 200 men and women between 31 and 50 years of age. The diet was assessed using three-day dietary records and the dietary pattern was determined with the use of the original score method and two dietary indices, namely the Diet Quality Index – International (DQI-I) and the Healthy Eating Index (HEI). Bacterial DNA was isolated from the feces of the participants and microbiota composition was determined using metagenomic sequencing of the V3–V4 region of the 16S rRNA gene.Dietary indices and intake of energy from macronutrients did not correlate with the Firmicutes to Bacteroidetes phylum ratio. However people with greater abundance of the Firmicutes phylum compared to Bacteroidetes consumed higher amounts of fermented milk beverages, hard cheese, and salt (78%, 48%, 14% higher intake respectively; p < 0.05). A higher diet quality as measured by the diet indices was positively correlated with the relative abundance of the Firmicutes phylum, Bacilli, Clostridia class, Lachnospira, Faecalibacterium, Coprococcus, and Prevotella genus and negatively correlated with the relative abundance of the Bacteroidetes phylum, Bacteroidia class, and Bacteroides genus. Higher dietary fiber intake positively correlated with the relative abundance of the Coprococcus, Lachnospira, and Roseburia genera, whereas energy intake from simple carbohydrates was positively correlated with the relative abundance of the Tenericutes phylum and the Mollicutes class. Energy intake from alcohol correlated positively with the relative abundance of Bacteroidetes phylum and Bacteroides class and correlated negatively with Firmicutes phylum and Clostridia class. Lower waist-to-hip-ratio, body mass index, and fat mass led to higher abundance of the Fecalibacterium genus.Both diet and anthropometric parameters are associated with gut microbiota composition. Associations between diet and the relative abundance of microbiota are nutrient-specific.

scholarly journals A Bayesian Negative Binomial Hierarchical Model for Identifying Diet–Gut Microbiome Associations

2021 ◽  
Vol 12 ◽  
Author(s):  
Alma Revers ◽  
Xiang Zhang ◽  
Aeilko H. Zwinderman
Keyword(s):  
Gut Microbiota ◽  
Gut Microbiome ◽  
Phylogenetic Relationships ◽  
Negative Binomial ◽  
Urban Setting ◽  
Microbiota Composition ◽  
Human Gut ◽  
Bayesian Hierarchical ◽  
Gut Microbiota Composition

The human gut microbiota composition plays an important role in human health. Long-term diet intervention may shape human gut microbiome. Therefore, many studies focus on discovering links between long-term diets and gut microbiota composition. This study aimed to incorporate the phylogenetic relationships between the operational taxonomic units (OTUs) into the diet-microbe association analysis, using a Bayesian hierarchical negative binomial (NB) model. We regularized the dispersion parameter of the negative binomial distribution by assuming a mean-dispersion association. A simulation study showed that, if over-dispersion is present in the microbiome data, our approach performed better in terms of mean squared error (MSE) of the slope-estimates compared to the standard NB regression model or a Bayesian hierarchical NB model without including the phylogenetic relationships. Data of the Healthy Life in an Urban Setting (HELIUS) study showed that for some phylogenetic families the (posterior) variances of the slope-estimates were decreasing when including the phylogenetic relationships into the analyses. In contrast, when OTUs of the same family were not similarly affected by the food item, some bias was introduced, leading to larger (posterior) variances of the slope-estimates. Overall, the Bayesian hierarchical NB model, with a dependency between the mean and dispersion parameters, proved to be a robust method for analyzing diet-microbe associations.

scholarly journals Associations between untargeted plasma metabolomic signatures and gut microbiota composition in the Milieu Intérieur population of healthy adults

2020 ◽  
pp. 1-11
Author(s):  
Valentin Partula ◽  
Mélanie Deschasaux-Tanguy ◽  
Stanislas Mondot ◽  
Agnès Victor-Bala ◽  
Nadia Bouchemal ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Multiple Testing ◽  
Large Scale ◽  
Linear Models ◽  
Healthy Adults ◽  
Rrna Gene ◽  
Microbiota Composition ◽  
Multiple Testing Correction ◽  
Negatively Associated ◽  
Gut Microbiota Composition

Abstract Host–microbial co-metabolism products are being increasingly recognised to play important roles in physiological processes. However, studies undertaking a comprehensive approach to consider host–microbial metabolic relationships remain scarce. Metabolomic analysis yielding detailed information regarding metabolites found in a given biological compartment holds promise for such an approach. This work aimed to explore the associations between host plasma metabolomic signatures and gut microbiota composition in healthy adults of the Milieu Intérieur study. For 846 subjects, gut microbiota composition was profiled through sequencing of the 16S rRNA gene in stools. Metabolomic signatures were generated through proton NMR analysis of plasma. The associations between metabolomic variables and α- and β-diversity indexes and relative taxa abundances were tested using multi-adjusted partial Spearman correlations, permutational ANOVA and multivariate associations with linear models, respectively. A multiple testing correction was applied (Benjamini–Hochberg, 10 % false discovery rate). Microbial richness was negatively associated with lipid-related signals and positively associated with amino acids, choline, creatinine, glucose and citrate (−0·133 ≤ Spearman’s ρ ≤ 0·126). Specific associations between metabolomic signals and abundances of taxa were detected (twenty-five at the genus level and nineteen at the species level): notably, numerous associations were observed for creatinine (positively associated with eleven species and negatively associated with Faecalibacterium prausnitzii). This large-scale population-based study highlights metabolites associated with gut microbial features and provides new insights into the understanding of complex host–gut microbiota metabolic relationships. In particular, our results support the implication of a ‘gut–kidney axis’. More studies providing a detailed exploration of these complex interactions and their implications for host health are needed.

scholarly journals A fructo-oligosaccharide prebiotic is well-tolerated in adults undergoing allogeneic hematopoietic stem cell transplantation: a phase I dose-escalation trial

2021 ◽  
Author(s):  
Tessa. M. Andermann ◽  
Farnaz Fouladi ◽  
Fiona B. Tamburini ◽  
Bita Sahaf ◽  
Ekaterina Tkachenko ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Phase I ◽  
Cell Transplantation ◽  
Gut Microbiome ◽  
Metagenomic Sequencing ◽  
Microbiota Composition ◽  
Hematopoietic Stem ◽  
The Impact ◽  
Gut Microbiota Composition ◽  
Reduced Intensity

AbstractBackgroundAlterations of the gut microbiota after allogeneic hematopoietic cell transplantation (allo-HCT) are a key factor in the development of transplant-related complications such as graft-versus-host disease (GVHD). Interventions that preserve the gut microbiome hold promise to improve HCT-associated morbidity and mortality. Murine models demonstrate that prebiotics such as fructo-oligosaccharides (FOS) may increase gut levels of short-chain fatty acids (SCFAs) such as butyrate, and consequently induce proliferation of immunomodulatory CD4+ FOXP3+ T-regulatory cells (Tregs), that impact GVHD risk.MethodsWe conducted a pilot Phase I trial to assess the investigate the maximum tolerated dose of FOS in patients undergoing reduced-intensity (RIC) allo-HCT (n=15) compared to concurrent controls (n=16). We administered FOS starting at pretransplant conditioning and continuing for a total of 21 days. We characterized the gut microbiome using shotgun metagenomic sequencing, measured stool SCFAs using LC-MS, and determined peripheral T-cell concentrations using CyTOF.ResultsWe found that FOS was safe and well-tolerated at 10g per day without significant adverse effects in patients undergoing reduced-intensity conditioning allo-HCT. Community-level gut microbiota composition was significantly different on the day of transplant (day 0) between patients receiving FOS compared to concurrent controls, however FOS-associated alterations of the gut microbiota were not sustained after transplant. Although the impact of FOS was fleeting, transplantation itself impacted a substantial number of taxa over time. In our small pilot trial, no significant differences were observed in gut microbial metabolic pathways, stool SCFAs, or in peripheral Tregs although Tregs trended higher in those patients who received FOS. Early alterations in gut microbiota composition in those receiving FOS are especially intriguing although it remains unclear what impact this has on outcomes following transplantation and larger studies are required to investigate the use of prebiotics in HCT recipients.ConclusionsFOS is well-tolerated at 10g per day in patients undergoing RIC allo-HCT.

scholarly journals Investigating the Gut Microbiota Composition of Individuals with Attention-Deficit/Hyperactivity Disorder and Association with Symptoms

2020 ◽  
Author(s):  
Joanna Szopinska-Tokov ◽  
Sarita Dam ◽  
Jilly Naaijen ◽  
Prokopis Konstanti ◽  
Nanda Rommelse ◽  
...  
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Gut Microbiota ◽  
Attention Deficit ◽  
Multiple Testing ◽  
Neurodevelopmental Disorder ◽  
Microbiota Composition ◽  
Multiple Testing Correction ◽  
Hyperactivity Disorder ◽  
Gut Microbiota Composition

Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder. Given the growing evidence of gut microbiota being involved in psychiatric (including neurodevelopmental) disorders, we aimed to identify differences in gut microbiota composition between participants with ADHD and controls and to investigate the role of the microbiota in inattention and hyperactivity/impulsivity. Fecal samples were collected from 107 participants (NADHD=42; Ncontrols=50; NsubthreholdADHD=15; range age: 13-29 years). The relative quantification of bacterial taxa was done using 16S ribosomal RNA gene amplicon sequencing. Beta-diversity revealed significant differences in bacterial composition between participants with ADHD and healthy controls, which was also significant for inattention, but showing a trend in case of hyperactivity/impulsivity only. Ten genera showed nominal differences (P &lt; 0.05) between both groups, of which seven genera were tested for their association with ADHD symptom scores (adjusting for age, sex, body mass index, time delay between feces collection and symptoms assessment, medication use and family relatedness). Our results show that variation of a genus from the Ruminococcaceae family (Ruminococcaceae_UCG_004) is associated (after multiple testing correction) with inattention symptoms, and suggest a role of gut microbiota in ADHD pathophysiology.

scholarly journals Investigating the Gut Microbiota Composition of Individuals with Attention-Deficit/Hyperactivity Disorder and Association with Symptoms

2020 ◽  
Vol 8 (3) ◽  
pp. 406 ◽  
Author(s):  
Joanna Szopinska-Tokov ◽  
Sarita Dam ◽  
Jilly Naaijen ◽  
Prokopis Konstanti ◽  
Nanda Rommelse ◽  
...  
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Gut Microbiota ◽  
Attention Deficit ◽  
Multiple Testing ◽  
Neurodevelopmental Disorder ◽  
Microbiota Composition ◽  
Multiple Testing Correction ◽  
Hyperactivity Disorder ◽  
Gut Microbiota Composition

Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder. Given the growing evidence of gut microbiota being involved in psychiatric (including neurodevelopmental) disorders, we aimed to identify differences in gut microbiota composition between participants with ADHD and controls and to investigate the role of the microbiota in inattention and hyperactivity/impulsivity. Fecal samples were collected from 107 participants (NADHD = 42; Ncontrols = 50; NsubthreholdADHD = 15; range age: 13–29 years). The relative quantification of bacterial taxa was done using 16S ribosomal RNA gene amplicon sequencing. Beta-diversity revealed significant differences in bacterial composition between participants with ADHD and healthy controls, which was also significant for inattention, but showing a trend in case of hyperactivity/impulsivity only. Ten genera showed nominal differences (p < 0.05) between both groups, of which seven genera were tested for their association with ADHD symptom scores (adjusting for age, sex, body mass index, time delay between feces collection and symptoms assessment, medication use, and family relatedness). Our results show that variation of a genus from the Ruminococcaceae family (Ruminococcaceae_UCG_004) is associated (after multiple testing correction) with inattention symptoms and support the potential role of gut microbiota in ADHD pathophysiology.

scholarly journals Alterations in Gut Glutamate Metabolism Associated with Changes in Gut Microbiota Composition in Children with Autism Spectrum Disorder

mSystems ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. e00321-18 ◽  
Author(s):  
Mingbang Wang ◽  
Jing Wan ◽  
Han Rong ◽  
Fusheng He ◽  
Hui Wang ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Autism Spectrum ◽  
Metagenomic Sequencing ◽  
Microbiota Composition ◽  
Glutamate Metabolism ◽  
Content Type ◽  
Children With Asd ◽  
Shotgun Metagenomic Sequencing ◽  
Potential Biomarker ◽  
Gut Microbiota Composition

ABSTRACT Changes in the gut microenvironment may influence the pathogenesis of autism spectrum disorders (ASD). Here, we investigated the composition of the gut microbiota and metabolites in children with ASD. Ninety-two children with ASD and 42 age-matched children exhibiting typical development (TD) were enrolled in the two-stage study. In the discovery stage, shotgun metagenomic sequencing and liquid chromatography-mass spectrometry (LC-MS) were performed simultaneously on fecal samples obtained from 43 children in the ASD group and 31 children in the TD group. Systematic bioinformatic analyses were performed to identify gut metabolites associated with altered gut microbiota composition. At the validation stage, differential metabolites were tested using LC-MS with an additional 49 and 11 children in the ASD and TD groups, respectively. Altered glutamate metabolites were found in the ASD group, along with a decline in 2-keto-glutaramic acid and an abundance of microbiota associated with glutamate metabolism. These changes in glutamate metabolism were correlated with lower levels of the highly abundant bacteria Bacteroides vulgatus and higher levels of the potentially harmful Eggerthella lenta and Clostridium botulinum. Lower gut cortisol levels have also been identified in the ASD group and associated with changes in gut microbiota glutamate metabolism. Finally, gut 2-keto-glutaramic acid was validated as a potential biomarker for ASD. The significant changes in the gut microenvironment in children with ASD may provide new insight into the cause of ASD and aid in the search for diagnostic and therapeutic approaches. IMPORTANCE Multiple lines of evidence suggest that the gut microbiota may play an important role in the pathogenesis of ASD, but the specific mechanism is still unclear. Through a comprehensive gut metagenomic and metabolome study of children with ASD, alterations in gut metabolite composition were found in children with ASD, and these alterations were linked to changes in gut microbiota composition. This may give us a deeper understanding of the role of gut microbiota in the pathogenesis of ASD.

Sign in / Sign up

Export Citation Format

Share Document