We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastics in maternal blood, fetal appendages, and umbilical vein blood
AI summary Read the abstract
Researchers detected 16 different types of microplastics in maternal blood, umbilical cord blood, and fetal tissues (placenta, amniotic fluid, fetal membrane, and umbilical cord) from 12 pregnant women who delivered by cesarean section. The most common plastics found were polyamide and polyurethane, and microplastic levels in amniotic fluid increased with maternal age and pre-pregnancy body weight, confirming that these particles can pass from mother to fetus.
Microplastics (MPs) have been detected in placenta and amniotic fluid, but there is no research on whether MPs exist in the other two fetal appendages: fetal membrane and umbilical cord. Additionally, the existence of MPs in umbilical vein blood remains unexplored. Furthermore, it is unclear whether MPs in maternal blood are associated with those in umbilical vein blood and fetal appendages. In this study, we selected 12 full-term pregnant people who delivered by cesarean section, and finally detected 16 kinds of MPs from maternal blood, fetal appendages, and umbilical vein blood by laser direct infrared (LDIR). Polyamide accounted for the highest proportion in the six kinds of samples, followed by Polyurethane. The total MPs median abundance in six kinds of samples were umbilical cord, maternal blood, fetal membrane, amniotic fluid, placenta and umbilical vein blood from high to low, and the specific values were 10.397 particles/g, 8.176 particles/g, 6.561 particles/g, 4.795 particles/g, 4.675 particles/g, and 2.726 particles/g respectively. Moreover, more than 90 % of MPs measured between 20 and 100 μm in diameter. We also found that MPs abundance in amniotic fluid increased with the increase of maternal age (R=0.64, p=0.025) and body mass index before pregnancy (r = 0.59, p= 0.049). However, no statistically significant association was found between lifestyle factors and MPs abundance. Future studies should aim to expand the sample size for further investigation.
More Papers Like This
Impact of Microplastics on Pregnancy and Fetal Development: A Systematic Review
AI summary Read the abstract
A systematic review of 12 studies confirmed the presence of microplastics ranging from 2.1 to 100 micrometers in human placentas and fetal tissue. Microplastic levels correlated with reduced birthweight, affected gestational age, diminished microbiome diversity, and impaired fetal growth and development, with lifestyle choices influencing placental microplastic burden.
Particulate Contamination of Human Placenta: Plastic and non-plastic
AI summary Read the abstract
Researchers characterized both plastic and non-plastic particulate contaminants found in human placental tissue from healthy pregnancies. They detected microplastics alongside other particles in placenta samples collected from both vaginal and caesarean deliveries at an urban Canadian hospital. The findings add to growing evidence that the human womb is exposed to a variety of environmental particulate contaminants during pregnancy.
The Invisible Threat: Microplastics in Human Blood and Placenta
AI summary Read the abstract
This review summarized current evidence on microplastic detection in human blood and placenta, discussing what is known about how these particles enter the bloodstream and reach fetal tissue. The authors highlight the potential implications for maternal and fetal health.
Maternal plastic exposure, placental microplastics, and neonatal anthropometry outcomes: Evidence from a human placenta study
AI summary Read the abstract
Researchers quantified microplastics in human placental tissue from 20 Iranian mothers and found that higher placental microplastic concentrations were strongly and inversely associated with neonatal length, with the detected particles predominantly small fragments around 10 µm suggesting transplacental passage of environmental particles may affect fetal growth.
Quantitation and identification of microplastics accumulation in human placental specimens using pyrolysis gas chromatography mass spectrometry
AI summary Read the abstract
Researchers analyzed 62 human placenta samples and found microplastics in every single one, with concentrations ranging from 6.5 to 685 micrograms per gram of tissue. Polyethylene, the most common plastic in everyday products, made up 54% of the plastics found. This widespread presence of microplastics in placentas raises concerns about fetal exposure during pregnancy and potential effects on development.
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.