We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Gut microbiome remodeling induced by microplastic exposure in humans
Summary
This review synthesizes evidence on how microplastic exposure affects the human gut microbiome, drawing on cross-sectional studies of people exposed through plastic food containers and other sources. Evidence indicates that microplastic exposure is associated with shifts in gut bacteria composition, including increases in certain bacterial groups linked to inflammation. The authors explore potential connections between microplastic-induced changes in gut bacteria and the development of various health conditions.
The impact of microplastics (MPs) on the diversity and composition of the gut microbiome has been extensively documented in animal studies, but evidence in humans remains limited. Recognizing the potential differences in MP effects between animal and human gut microbiomes, this review synthesizes current evidence concerning their impact on the human gut microbiota. Furthermore, the potential links between microplastic-induced dysbiosis and the pathogenesis of human diseases were analyzed. Cross-sectional studies have been conducted to explore microplastic exposures (such as in humans who consume hot foods served in disposable plastic tableware) and their associations with gut microbiome functionalities in infants, preschool children and adults. Exposure to MPs increased the abundance of Dethiosulfovibrionaceae, Enterobacteriaceae, Moraxellaceae, Actinomycetota, Pseudomonadota, and Veillonella. On the other hand, MPs decreased the abundances of Bacillota, Bacteroidota, Lactobacillales, Rikenellaceae, Parabacteroides, Roseburia, Coprococcus, Turicibacter, and Eubacterium coprostanoligenes. These changes were associated with a decrease in butyrate production and a decrease in short-chain fatty acid levels. However, for some other bacteria, both inductive (on Oscillospiraceae, Adlercreutzia, Phascolarctobacterium, and Collinsella) and repressive effects (on Streptococcus) have been documented. There are contradictory reports about MP-induced changes in Lachnospiraceae (including the Dorea genus), Alistipes and Faecalibacterium, which may be correlated with obesity, gastrointestinal dysfunction, some cancers, inflammatory bowel disease and Crohn's disease. Potential reasons for these discrepancies are proposed. This review also examines putative mechanisms, with a focus on biofilm formation on selective surfaces, and discusses the inherent limitations of current MP exposure assessments in human gut microbiota studies.
Sign in to start a discussion.
More Papers Like This
Microbial risks associated with microplastics in the food chain and possible control measures (literature review). Part 1. Dietary intake and influence on the gut microbiota
This review summarizes evidence that microplastics commonly found in food and drinking water can disrupt the human gut microbiome when ingested. Studies show that microplastics alter the composition and function of intestinal bacteria, potentially affecting digestion, immunity, and overall health. Since a healthy gut microbiome is essential for human wellbeing, this pathway of harm deserves attention alongside other known risks of microplastic exposure.
Impact of microplastics on the human gut microbiome: a systematic review of microbial composition, diversity, and metabolic disruptions
This systematic review of 12 studies found that microplastics including polyethylene, polystyrene, and PVC induce gut dysbiosis in humans, reducing beneficial bacteria and enriching pathogens. Microplastic exposure also impairs short-chain fatty acid production and modulates immune pathways, contributing to intestinal disease, metabolic syndrome, and chronic inflammation.
Exploring Bacterial Interactions with Microplastics in the Human Gut Microbiome
This review explored how microplastics interact with bacteria in the human gut microbiome, examining evidence that plastic particles can alter microbial community composition, enable colonization by pathogens, and facilitate horizontal gene transfer of antibiotic resistance genes. The gut microbiome appears to be a significant site of microplastic-microorganism interaction.
Microplastics and human health: unveiling the gut microbiome disruption and chronic disease risks
This review summarizes evidence that microplastics disrupt the gut microbiome, the community of bacteria in our digestive system that plays a key role in immunity, metabolism, and overall health. By altering gut bacteria balance and triggering inflammation, microplastic exposure may contribute to chronic conditions including inflammatory bowel disease, metabolic disorders, and potentially even neurological problems through the gut-brain connection.
Impact of microplastics on human gut microbiota: first evidences from in vitro gut models
Researchers investigated the impact of microplastics on human gut microbiota using in vitro gut models, providing early experimental evidence of how microplastic exposure may disrupt intestinal microbial communities. The study offers foundational data on microplastic-microbiome interactions that are difficult to study directly in humans.