We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Micro- and nanoplastics in pediatric health: from placental transfer to neurodevelopmental outcomes
AI summary Read the abstract
This review summarizes existing research on tiny plastic particles found in placenta, amniotic fluid, cord blood, and children's feces. It describes animal studies linking early-life exposure to brain and behavior changes, and notes human studies finding associations between urinary plastic markers and children's behavior or thinking, though a cause and effect link has not been established.
BACKGROUND: Micro- and Nano plastic (MNP) contamination is an emerging environmental health concern with potential implications for pediatric health. Due to developmental susceptibility and higher relative exposure, fetuses, infants, and young children may be particularly vulnerable to MNP-related toxicity. METHOD: This narrative review integrates evidence from animal models, human biomonitoring, and mechanistic studies to evaluate prenatal and early-life exposure pathways and potential neurodevelopmental consequences of MNPs. The synthesis addresses placental transfer, postnatal ingestion, inhalation, dermal exposure, and advances in analytical techniques for detection of biomarkers. RESULTS: Human studies demonstrate the presence of microplastics in the placenta, amniotic fluid, cord blood, and feces, supporting transplacental and early-life exposure. Experimental evidence indicates that nanoplastics can cross biological barriers and may induce oxidative stress, inflammation, endocrine disruption, and altered neurotransmitter signaling. Animal studies consistently show structural and behavioral neurodevelopmental changes following early-life exposure. Emerging epidemiological data suggest associations between urinary microplastic markers and behavioral or cognitive outcomes in children, although causality remains unestablished. CONCLUSION: Current evidence indicates that children are exposed to MNPs during critical developmental windows, with biologically plausible mechanisms linking exposure to adverse neurodevelopmental outcomes. Longitudinal human studies and child-specific dose-response data are urgently needed to inform risk assessment and guide public health strategies. IMPACT: Children represent a uniquely vulnerable population to microplastic and nanoplastic exposure, beginning with placental transfer and continuing through ingestion and inhalation in early life. Our findings highlight the urgent need for standardized detection methods for microplastic exposure and longitudinal studies in children linking exposure to neurodevelopmental outcomes. Protecting children from micro- and nanoplastic toxicity represents public health priority for future generations.
More Papers Like This
Effects of microplastics and nanoplastics on the brain and behavior: Evidence from rodent and human studies
AI summary Read the abstract
Tiny plastic particles that have already made their way into our bodies may do more than harm the heart and lungs, this review pulls together research suggesting they could also affect the brain and behavior, based on studies in animals, human data, and lab-grown brain tissue. While scientists are still working out exactly how much risk this poses to people, the early evidence is concerning enough that researchers say understanding these effects on brain health should be a priority as plastic pollution keeps growing.
Emerging role of microplastics and nanoplastics in children's health
AI summary Read the abstract
Tiny plastic particles called microplastics and nanoplastics have been found in the placenta, breast milk, and even infant poop, showing that babies are exposed to plastic pollution before and after birth. This review of existing research explains that kids may be especially vulnerable because their bodies are still developing, and these particles may disrupt gut health, hormones, lungs, and even brain development. While more research is needed to fully understand the risks, the findings add to growing concerns about reducing everyday plastic exposure for children.
Micro- and Nanoplastics and Fetal Health: Challenges in Assessment and Evidence from Epidemiological Studies
AI summary Read the abstract
This review examines the emerging evidence that micro- and nanoplastics can reach the developing fetus during pregnancy, with animal studies showing potential effects on neurological development and placental blood flow. The study also highlights major challenges in accurately detecting and measuring these tiny particles in biological tissues from mothers and babies. The authors call for standardized methods and more human studies to better understand the risks of prenatal microplastic exposure.
Microplastics in the human placenta: mechanisms, risks, and futures: a systematic review
AI summary Read the abstract
This review pulls together studies showing that tiny plastic particles can reach the placenta, umbilical cord blood, and even a baby's first stool, and may trigger stress and inflammation in placental cells. It's too early to know exactly how much this harms babies long-term, but scientists say it's a concerning enough pattern to warrant urgent, better-designed research.
Micro- and nanoplastics and potential perturbation of the microbiota-gut-brain axis.
AI summary Read the abstract
This review summarizes existing research on microplastics and nanoplastics and their possible effects on the gut, its microbes, and the brain. Animal studies found changes in gut bacteria, gut barrier function, inflammation, and behavior, but human evidence remains limited and cannot yet show these particles cause brain disease.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.