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Microplastics‐Mediated Gut Microbial Dysbiosis and Cellular Bioenergetic Impairment: A Critical Review
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This review pulls together existing research on tiny plastic particles that we breathe, eat, and absorb through our skin, which have been found in our gut, blood, lungs, and even the placenta. These particles may disrupt gut bacteria and mess with how our cells produce energy, though scientists still need better tools to measure this accurately. The takeaway: reducing plastic exposure and pushing for stronger regulations could matter for long term health.
Plastics are an integral part of modern society; however, their environmental persistence has led to widespread contamination, posing significant ecological and human health risks. Microplastics (MPs) and nanoplastics (NPs) raise concerns because of their small size and ability to penetrate biological systems, leading to concerns about bioaccumulation and toxicity. This review examines the sources, classification, and fate of MPs in the environment, their entry routes into the human body, organ accumulation, and health impacts, with a focus on gut microbiota, oxidative stress, and energy metabolism. A comprehensive literature analysis was conducted to assess MPs' occurrence in the environment, major exposure pathways-including ingestion, inhalation, and dermal absorption-and their accumulation in human tissues. Additionally, experimental findings on MPs' role in gut dysbiosis, metabolic disturbances, and inflammatory responses are discussed. MPs have been detected in various biological matrices, including the gastrointestinal tract (GIT), bloodstream, lungs, and placenta, raising concerns about their long-term health implications. However, inconsistencies in detection methods hinder standardization. Future research should focus on developing advanced analytical techniques, such as super-resolution and cryo-electron microscopy, as well as spectroscopic and mass spectrometry-based methods like surface-enhanced Raman spectroscopy (SERS) and single-particle ICP-MS, to improve sensitivity and specificity in the detection of MPs in biological and environmental samples. Policy interventions, stricter plastic regulations, improved waste management, and public awareness campaigns are crucial for mitigating MPs' exposure and safeguarding environmental and human health.
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Metabolic footprint of microplastics and nanoplastics: From environmental exposure to metabolic diseases
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Tiny plastic particles that get into our bodies through food, water, and air may be quietly messing with how our cells produce energy, process fat, and respond to insulin—potentially raising the risk of obesity, type 2 diabetes, and fatty liver disease. This review pulls together existing research to explain how these particles disrupt gut bacteria and cell function, with smaller plastic pieces generally causing more harm. While more research is needed to confirm long-term effects in humans, the findings suggest reducing plastic exposure where possible may be a smart precaution for metabolic health.
Micro- and Nanoplastics as Environmental Stressors: Mechanistic Links Among Gut Dysbiosis, Inflammation, and Systemic Health Effects
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This review pulls together existing research on how the tiny plastic particles we're constantly exposed to (in food, water, and air) might harm our health, not just by directly damaging cells, but by disrupting our gut bacteria and triggering chronic inflammation throughout the body. Scientists think this chain reaction could play a role in heart, liver, kidney, lung, and even brain diseases, though the evidence in humans is still early and more research is needed to confirm how serious the risk really is. The takeaway: microplastics may affect health through your gut, not just wherever they physically end up in the body.
Are Microplastics Toxic? A Review from Eco-Toxicity to Effects on the Gut Microbiota
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This review summarizes existing research on the toxicity of micro- and nanoplastics, from environmental organisms to effects on gut bacteria. Studies show these particles can cause oxidative stress, disrupt energy metabolism, and damage genes in a range of species. With micro- and nanoplastics now found in human blood, lung tissue, and placentas, the authors stress that much more research is needed to understand the full health risks to people.
Microplastics and nanoplastics: Characterizing potential health perturbations and mechanistic evidence
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Tiny plastic particles called microplastics and nanoplastics are everywhere, in our food, water, and air, and this review pulls together existing research on how they might harm our bodies. Scientists found these particles can damage cells, trigger inflammation, disrupt gut bacteria, and may even raise cancer risk, though more research is still needed to fully confirm these links in humans. The takeaway: reducing plastic exposure in daily life is a reasonable precaution while researchers work to better understand the risks.
Micro‐ and nanoplastics in gastrointestinal disorders: Mapping the translational gap between exposure, biomonitoring, and pathogenic mechanisms
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Tiny plastic particles from our food, air, and water may be doing more than just passing through our bodies, this review of existing research suggests they can irritate the gut lining, trigger inflammation, and throw off the balance of healthy gut bacteria. While scientists haven't yet nailed down exactly how much exposure causes harm or the precise mechanisms involved, the evidence so far suggests these ever-present plastic particles could be a hidden contributor to digestive health problems, making it a research area worth watching.
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