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Health Implications of Widespread Micro- and Nanoplastic Exposure: Environmental Prevalence, Mechanisms, and Biological Impact on Humans
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This review summarizes how microplastics and nanoplastics enter the human body through food, air, and skin contact, then travel through the bloodstream to accumulate in various organs. Health effects range from immediate problems like pain and inflammation to long-term conditions including infertility, chronic lung disease, and potentially cancer, though the exact concentrations that build up in the body and the full extent of harm are still being studied.
The increasing awareness of the potential health risks associated with microplastics' (MPs) and nanoplastics' (NPs) presence in the environment has led to a significant rise in research focused on these particles over the past few years. This review focuses on the research on MPs'/NPs' presence and spread, pathways of exposure, toxicological effects on human health and legal framework related to MP/NP challenges. Several research projects have aimed to assess their potential harm to human health, focusing on different systems and organs. After exposure (independent of the pathway), these hazards reach the blood stream and concentrate in different organs. Further, they are responsible for harmful changes, having an immediate effect (pain, inflammation, or hormone imbalance) or lead to a long-term disease (e.g., infertility, chronic obstructive pulmonary disease, or cancer). Toxicological effects have been noticed at high concentrations of MPs, specifically polystyrene, the most widespread typical MP, but only short-term effects have been mostly studied. Significant quantities of consumed MPs have been discovered to have diverse detrimental effects, posing a threat to human welfare. The exact concentrations of microplastics that are inhaled and swallowed and then build up in the human body are still not known. Further investigation is necessary to evaluate the impact of MP/NP contamination at minimal concentrations and for prolonged durations.
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Micro- and Nanoplastics on Human Health and Diseases: Perspectives and Recent Advances
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This review provides a comprehensive overview of how micro- and nanoplastics enter the human body through ingestion, inhalation, and skin absorption, and how they can then travel through the bloodstream to reach virtually every organ. Researchers summarize evidence that these particles can trigger inflammation, oxidative stress, and disruption of hormonal and immune functions. The study emphasizes that the ability of these particles to cross biological barriers and accumulate in tissues makes understanding their long-term health effects an urgent research priority.
Micro and Nanoplastics on Human Health and Diseases: Perspectives and Recent Advances
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This review covers how micro- and nanoplastic particles enter the human body through ingestion, inhalation, infusion, and skin absorption, distribute to virtually all tissues and organs via the circulatory system, and cause health impacts including inflammatory responses, cellular damage, and endocrine disruption.
From environment to body: sources and health consequences of microplastics and nanoplastics in humans
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This review summarizes existing research on how tiny plastic particles called microplastics and nanoplastics enter the human body through food, water, air, and skin contact. Studies cited suggest these particles may build up in tissues and are linked to inflammation, immune problems, and other health issues, though long-term human health risks remain unclear.
Exposure Pathways, Systemic Distribution, and Health Implications of Micro- and Nanoplastics in Humans
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This review summarizes how micro- and nanoplastics enter the human body through food, air, and skin, then distribute to organs throughout the body. Research in animal and cell models shows these particles can cause oxidative stress, inflammation, brain toxicity, reproductive problems, and potentially cancer, though standardized methods for assessing real-world human health risks are still needed.
A review on microplastics and nanoplastics in the environment: Their occurrence, exposure routes, toxic studies, and potential effects on human health
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This review summarizes what is known about how microplastics and nanoplastics enter the human body through food, air, and skin contact, and what they do once inside. Studies on cells and animals show these tiny particles can cause oxidative stress, DNA damage, inflammation, and harm to the immune, digestive, reproductive, and nervous systems. The research makes clear that microplastics are not just an environmental problem but a direct concern for human health.
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