We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Micro- and Nanoplastics as Emerging Drivers of Liver Injury: Exposure, Evidence, and Mechanisms
AI summary Read the abstract
This review pulls together current research on tiny plastic particles (microplastics and nanoplastics) that we ingest or breathe in, showing they can travel through the body and accumulate in the liver. Lab studies suggest these particles may trigger inflammation, stress cells out, and disrupt normal liver function in ways that could contribute to fatty liver disease and scarring over time. That said, most of this evidence comes from animal and cell studies so far—scientists still need more direct human data to know exactly how much this matters for our health, but it's a good reason to be mindful of plastic exposure in food and water.
Micro- and nanoplastics (MNPs) are emerging environmental contaminants of increasing relevance to human health. Growing evidence suggests that, following ingestion, inhalation, or, less convincingly, dermal exposure, MNPs may cross biological barriers, enter lymphatic and vascular compartments, and reach the liver. Owing to portal blood flow, sinusoidal architecture and Kupffer cell activity, the liver appears to be one of the principal sites of early particle sequestration. Human biomonitoring, ex vivo and postmortem studies have detected MNPs in blood and multiple organs, including the liver, although the currently available evidence remains limited and methodologically heterogeneous. Their identification relies on multistep analytical procedures that integrate sample pretreatment with FTIR, Raman spectroscopy, LD-IR, Py-GC-MS and supplementary imaging methods. However, each of these techniques presents significant limitations, particularly in the analysis of nanoplastics. Experimental studies indicate that MNPs may induce hepatic injury through oxidative stress, mitochondrial impairment, endoplasmic reticulum stress, inflammation, DNA damage, dysregulated lipid metabolism and disruption of the gut-liver axis, consequently contributing to steatosis, cholestatic anomalies and fibrosis. Consequently, MNPs should be considered potential contributors to liver pathology, although more comprehensive human data are still required.
More Papers Like This
Nanoplastics and Microplastics May Be Damaging Our Livers
AI summary Read the abstract
This systematic review summarizes research on how micro- and nanoplastics may damage the liver. Since the liver is the body's main detoxification organ, it plays a key role in processing plastic particles that enter the body through food, water, and air, and the evidence suggests these particles can cause inflammation, oxidative stress, and other liver problems.
Impact of microplastics and nanoplastics on liver health: Current understanding and future research directions
AI summary Read the abstract
This review summarizes what scientists know about how micro- and nanoplastics affect the liver, which is one of the first organs exposed because it processes everything absorbed from the gut. The particles trigger oxidative stress, disrupt energy metabolism, cause cell death, and promote inflammation, and may contribute to conditions like fatty liver disease and liver fibrosis. The paper also highlights how plastics can disturb the gut microbiome, which communicates with the liver through the gut-liver axis and may amplify liver damage.
Table 1_Microplastics in focus: a silent disruptor of liver health- a systematic review.docx
AI summary Read the abstract
This systematic review of 25 studies found that micro- and nanoplastics can damage liver cells by causing oxidative stress, inflammation, and disrupting how the liver processes fats. These findings suggest that plastic particles small enough to reach the liver could contribute to liver disease, though more human studies are needed.
Microplastics, nanoplastics and liver disease: an emerging health concern?
AI summary Read the abstract
Researchers reviewed emerging evidence that microplastics and nanoplastics accumulate in human liver tissue at increasing concentrations over the past decade, trigger oxidative stress, fibrogenesis, and inflammation in cell and animal models, and may carry microbial pathogens and endocrine-disrupting chemicals, introducing the concept of plastic-induced liver injury as a new focus for environmental hepatology.
Micro- and nanoplastics induce hepatic injury through organelle stress and fibrotic signaling: mechanisms and therapeutic opportunities
AI summary Read the abstract
This review pulls together existing research showing that tiny plastic particles we ingest (from food, water, and packaging) can build up in the liver and damage it from the inside, stressing the cell's internal "power plants" and "recycling centers," triggering inflammation, and eventually causing scarring (fibrosis). This matters because it suggests everyday plastic exposure could contribute to chronic liver disease over time, and the paper points to potential treatments, like antioxidants or therapies targeting gut health, that scientists are exploring to counter this damage.
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.