Carbon nanoparticles in PM2.5 can cause abortion

On April 10th, at the Institute of Radiochemistry and Nuclear Environment, School of Nuclear Science and Technology, Lanzhou University, it was discovered that carbon nanoparticles can pass through the placental barrier and enter the fetus, resulting in placental damage, which can cause lesions in the fetal heart and brain tissue, thereby delaying the fetus Growth and development may even cause stillbirths. The research results were published in the Nature Science Report.

The author of the paper, Dr. Qi Wei, Institute of Radiochemistry and Nuclear Environment, Lanzhou University, said that the use of isotope tracer technology to model carbon nanoparticles through the placental barrier and its effect on pregnant mice was studied. The effect of carbon nanoparticles on the concept of pregnancy revealed that carbon nanoparticles can pass through the placental barrier and enter the fetus, resulting in placental damage, which is manifested by decreased secretion of progesterone and increased estradiol secretion. At the same time, the number of blood vessels in the placenta is reduced, and the diameter of the vascular tube is narrowed, which in turn reduces the ability of the placenta to provide support to the fetus. As a result, lesions develop in the heart and brain tissue of the fetus, which in turn delays fetal growth and development, and even results in stillbirth.

The author of the paper, Wu Wangsuo, professor of Institute of Radiochemistry and Nuclear Environment, Lanzhou University School of Nuclear Medicine and Technology, said that the results confirmed that carbon nano-particles have serious damage to the pregnant body and clarify the effects of carbon nanoparticles on the fetus and the mother. The mechanism directly confirms that particulate contaminants (such as PM2.5, etc.) in the atmosphere can cause pregnancy-pregnant disorders, provide safety warnings to pregnant women living in areas with severe particulate contamination for a long time, and provide treatment for pregnancy-related diseases in pregnant women caused by the pollution. Guidance and advice.