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20 resultsShowing papers similar to The Effect of Rumen Microbiota in The Susceptibility of Subacute Ruminal Acidosis in Dairy Cows
ClearImpact of Exposure of Dairy Cow Feed to Polystyrene Microplastics on 24 h In Vitro Rumen Fermentation Responses, Microbiota Biodegradation Potential and Metabolic Pathways
Scientists found that when dairy cows eat feed contaminated with tiny plastic particles, it disrupts their digestion and changes the helpful bacteria in their stomachs. The cows' stomach bacteria can actually break down some of the plastic, but this process creates harmful chemicals that could affect milk production. This matters because microplastics are increasingly common in animal feed, which could potentially impact the safety and quality of dairy products we consume.
Degradation of Microplastics in an In Vitro Ruminal Environment
Researchers tested whether rumen microbes from cattle could break down common microplastics in a lab setting. They found modest degradation of low-density polyethylene and polyethylene terephthalate over 14 days, particularly with certain bacterial and fungal species. The study suggests that the rumen's microbial community may have limited but real potential to help reduce microplastic pollution in the livestock production chain.
Biodegradation of Polyethylene Terephthalate Microplastic in the Rumen of Cattle
Researchers incubated PET microplastics in cattle rumen fluid and found evidence of microbial colonization and partial polymer degradation by rumen microbiota, suggesting that ruminant digestive systems may harbor plastic-degrading microorganisms with potential bioremediation applications.
Association between microplastics exposure and gut microbiota and metabolites in older adults: A cross-sectional study
Researchers analyzed fecal samples from 45 older adults to assess the relationship between microplastic exposure and gut microbiota. They found an average of 70 microplastic particles per gram of feces, primarily PVC, butadiene rubber, and polyethylene, and observed that microplastic exposure was associated with changes in gut microbial diversity and metabolite levels. The study suggests that microplastics may influence gut health in older adults by altering bacterial community composition and metabolic pathways.
Gut dysbiosis: Nutritional causes and risk prevention in poultry, with reference to other animals
This review examines the causes and consequences of gut dysbiosis in poultry and other animals, identifying microplastics as one of several environmental pollutants that can disrupt gastrointestinal microbial communities. Researchers describe how reduced microbial diversity leads to inflammation, compromised gut barriers, and disorders affecting multiple organ systems. The study highlights that microplastics, along with heavy metals, pesticides, and other contaminants, contribute to the growing challenge of maintaining healthy gut microbiomes in animal populations.
Multi-omics association pattern between gut microbiota and host metabolism of a filter-feeding fish in situ exposed to microplastics
Scientists exposed filter-feeding fish to environmentally realistic levels of microplastics and found that the particles reshaped gut bacteria communities, which in turn altered the fish's liver metabolism through changes in amino acid processing. This gut-microbiome-to-organ connection matters because it shows microplastics may affect human health not just through direct toxicity but by disrupting the beneficial bacteria in our digestive systems.
Differential Impacts of Environmentally Relevant Microplastics on Gut Barrier Integrity in Mice Fed High-Fat Diet Versus Normal Chow Diet
Researchers found that the impact of microplastics on gut barrier integrity differs significantly depending on diet, with mice fed high-fat diets showing different responses than those on normal diets. The gut microbiome and its metabolites, particularly the short-chain fatty acid butyrate, appear to play a critical role in mediating these effects. The study highlights the importance of considering dietary patterns when evaluating how microplastics affect digestive health.
How do microplastics affect the composition and function of gut microbiota?
Researchers reviewed how microplastics may disrupt gut microbiota composition and metabolic function, noting that while dysbiosis is a likely outcome of exposure, the full extent of these effects in humans remains poorly characterized and understudied.
Influence of selected dosages of plastic microparticles on the porcine fecal microbiome
Researchers fed pigs different doses of PET microplastics for 28 days and analyzed changes in their gut bacteria. Higher doses of microplastics increased certain bacterial groups that produce short-chain fatty acids, which are important for gut health and immune function. Since pig digestive systems are similar to humans, these results suggest microplastic exposure could alter our gut microbiome in ways that affect digestion and overall health.
Gut Microbiota and Extraintestinal Disorders: Are They Interrelated?
This review examines how disturbances to the gut microbiome — the community of bacteria living in the digestive tract — are linked not just to intestinal diseases but also to allergies, asthma, and cardiovascular conditions. This context is relevant to microplastics research because ingested plastic particles have been shown to alter gut microbial communities.
Gut Check: Microbiota and Obesity in Mice Exposed to Polystyrene Microspheres
Researchers found that gut microbiota appeared to play a mediating role in the obesity outcomes observed in mice fed manufactured polystyrene microspheres, suggesting that microplastic-induced alterations to the gut microbiome may be a mechanism linking microplastic exposure to metabolic dysfunction and weight gain.
Effect of Microplastic Contamination on In Vitro Ruminal Fermentation and Feed Degradability
Researchers tested the effects of three common microplastic types on rumen fermentation in lambs using an in vitro model. They found that microplastic contamination significantly disrupted fermentation dynamics, reduced feed degradability, and increased gas production. The results suggest that microplastic ingestion by livestock could impair digestive efficiency and nutrient absorption.
Impacts of microplastics exposure on mussel (Mytilus edulis) gut microbiota
Researchers exposed marine mussels (Mytilus edulis) to microplastics and analyzed changes to their gut microbiota, finding significant shifts in microbial community composition that could affect digestion, immunity, and overall health.
Interaction between microplastics and microorganism as well as gut microbiota: A consideration on environmental animal and human health
This review explores how microplastics interact with microorganisms in the environment and within the gut, examining implications for both animal and human health. Researchers found that microplastics can alter gut microbiota composition, promote the spread of antibiotic-resistant bacteria, and amplify the toxicity of other environmental pollutants. The study suggests that the interaction between microplastics and gut microorganisms is an important emerging area for understanding health risks.
How do microplastics affect the composition and function of gut microbiota?
Researchers reviewed how microplastics may disrupt gut microbiota composition and metabolic function, noting that while dysbiosis is a likely outcome of exposure, the full scope of these effects in humans remains understudied.
Association of gut microbiota composition and function with a senescence-accelerated mouse model of Alzheimer’s Disease using 16S rRNA gene and metagenomic sequencing analysis
This study compared gut microbiota composition between a senescence-accelerated mouse model of Alzheimer's disease and normal aging mice, finding distinct differences in microbial communities and functional profiles. While not directly about microplastics, understanding gut microbiome disruption is relevant to research on how microplastic-associated chemical exposures may affect neurodegenerative disease risk.
Low-Density Polyethylene Microplastics in the Rumen: Implications for Rumen Fermentation Dynamics and Utilization of Concentrate Feed
Researchers conducted the first in vitro study examining how polyethylene microplastics affect rumen fermentation in livestock. Both tested concentrations of microplastics significantly reduced gas production and altered fermentation patterns, while also decreasing the digestibility of feed nutrients. The findings suggest that microplastic contamination of animal feed could impair digestive efficiency in ruminants, with potential implications for livestock health and productivity.
Effect of microplastic on rumen metabolism.
This review examines how microplastics and plastic additives including bisphenols and phthalates accumulate in water, soil, and animal feed and transfer into animal products such as milk, meat, and eggs, raising food safety concerns. The authors discuss microplastics as disruptors of rumen metabolism in livestock.
Engineered Synthetic Microbial Consortia for In Vivo Plastic-Derived Metabolite Detoxification and Host Health Restoration in Ruminant Animals
Researchers proposed engineered synthetic microbial consortia for in vivo detoxification of plastic-derived metabolites in the rumen of cattle and goats, designing microbial communities capable of degrading plasticizers and other contaminants ingested through MP-contaminated feed.
Effects of frying on microplastics load in fish and implications on health
Researchers investigated the effects of polyethylene microplastics on gut microbiota composition in mice fed a high-fat diet, finding that microplastic exposure altered microbial diversity and increased gut permeability. Co-exposure with a high-fat diet amplified metabolic disruption.