Topics
microplastics
August 23, 2024
Studies confirm micro- and nanoplastics (MNPs) in human endometrial tissue, amniotic fluid, placentas, and feces of pregnant people; MNP presence in the endometrium is linked with recurrent miscarriages in humans, apoptosis in organoids, and reduced fertility in mice; higher MNPs exposure from seafood and bottled water consumption
Reading time: 5 minutes
August 15, 2024
Provides general information on micro- and nanoplastics (MNPs); claims there is no evidence showing health risks; comments on lack of standardized methods for detecting, quantifying, and characterizing MNPs
Reading time: 2 minutes
July 23, 2024
Study proposes a preliminary physiologically-based toxicokinetic (PBTK) model for micro- and nanoplastics (MNPs); polymer type, size, shape, surface chemistry, surface biofilms, and biocorona determine toxicokinetic rates; models for engineered nanoparticles are not appropriate due to heterogeneity of MNPs; uptake via inhalation and effects of absorbed chemicals need more investigation
Reading time: 3 minutes
June 20, 2024
New study examines long-term effects of polystyrene (PS) nanoplastics on mitochondrial health under realistic exposure conditions; repeated exposure to PS nanoplastics impaired mitochondrial function and cell differentiation process, possibly linked to metabolic disorders, such as diabetes and obesity; other recent studies found that PS micro- and nanoplastics negatively affect immune function, pregnancy outcomes, and gut health in various models
Reading time: 3 minutes
June 17, 2024
Study of colon cancer cell lines finds polystyrene micro and nanoplastic particles (MNPs) can be absorbed into cancerous cells in experimental settings; the more aggressive cell line absorbed the most MNPs and presence of MNPs increased cell movement; evidence of persistence and bioaccumulation; authors argue MNPs fit criteria as substance of concern under REACH
Reading time: 3 minutes
May 10, 2024
Recent studies explore uptake pathways of microplastics; uptake has increased in recent years; rapidly industrializing Southeast Asian countries more impacted; food packaging responsible for approx. 2.98 × 103 microplastics/person/year; higher exposure for regular consumers of bottled water, tea brewed from plastic tea bags, or ultrafiltered milk
Reading time: 3 minutes
April 15, 2024
Literature review of micro- and nano(bio)plastics research; scrutinizes the complexities of micro- and nano(bio)plastics degradation and their toxicological effects; highlights gaps in long-term impact studies and interactions with environmental conditions; challenges the assumption that "biodegradable" means complete degradation; calls for greater transparency in research practices to bolster collective understanding
Reading time: 2 minutes
April 11, 2024
Two studies investigate micro- and nanoplastics measured in foods; review the range of reported values and diversity of study methods; make suggestions to standardize research methodologies; one study outlines additional standards the micro – nanoplastics research community needs to develop in order to assist regulators
Topics: microplastics, nanoplastics
Reading time: 4 minutes
April 5, 2024
Study provides an in-depth look at microplastics in the male reproductive system, analyzes human and mouse samples to chart concentrations and polymer types; finds microplastics in all human testes samples and majority of semen samples; larger plastic particles may get trapped in testis, leading to higher concentrations; identifies correlation between urbanization, home-cooked meals, and body scrub used to microplastics concentration
Reading time: 3 minutes
