Author archives: Lisa Zimmermann

Study using perfused human placental tissue demonstrates polystyrene nanoplastics affect expression of inflammation and iron homeostasis-related genes; review summarizes that small plastic particles can enter reproductive organs and affect reproductive health, however further research needed to verify the results and assess mechanisms of reproductive toxicity

Researchers report plastic fragments may exacerbate breast cancer metastasis; review summarizes nanoplastic uptake into human cells; studies find occupational microplastics exposure can be reduced by wearing face masks; millions of micro- and nanoplastics are released during 30-second food blending; scientists more worried about microplastic impacts on the environment than humans

Scientists assess microplastics in 30 human semen and 6 testis samples; first to demonstrate presence in human male reproductive system; review finds 9 out of 11 studies demonstrate that plastic particles can translocated across placental barrier

Several articles published since the beginning of 2023 have analyzed plastic particles in packaged foods and beverages, including salt, sugar, canned fish, bottled water, soft drinks, and cold tea; draw a connection to packaging and food processing; migration studies demonstrate particle release from plastic food containers and breastmilk storage bags; review develops 10 criteria for data quality assessment and find most studies “unreliable” on one or more criteria

Small pilot study analyzes saphenous vein tissues from five individuals and detects 15 plastic particles/g tissue indicating transport of plastic particles within human tissue; review concludes more research needed to elucidate the potential carcinogenicity of micro- and nanoplastics; researchers find potential connection between colorectal cancer and microplastic exposure level; preliminary study report microplastic presence in four out of six urine samples 15 plastic particles/g of tissue

Scientists report human-relevant polystyrene (PS) microplastic concentrations change mice placental metabolism; show nanoplastics have variable effects on placental enzymes using simulations; find pre- and postnatal PS microplastic exposure affects male mice testis development and fertility; recommend future research to analyze multigenerational effects

Researchers report cooking in non-stick Teflon cookware may lead to the release of thousands of micro- and nanoplastics; find 3 to 43 plastic particles prone to be released from Chinese polypropylene takeaway containers; detect around 1,500 microplastics/liter in Iranian bottled water; review points out that micro- and nanoplastic detection methods in food need validation and standardization

Review summarizes microplastics abundance and characteristics in human biological samples including current research approaches employed, challenges, and prospects; study indicates microplastics impact human meconium and placenta microbiota; review outlines current evidence on microplastic effects upon exposure during early developmental stage