Organic nitrates, lead to birth defects in children
Scientists from the University of Texas at Austin (University of Texas at Austin) and Peking University (Peking University) came to the conclusion that babies in the womb are exposed to certain hazardous substances of organic origin, are at increased risk of birth defects.
The child may have diseases such as spina bifida (malformation of the spine, which is an incomplete closure of the neural tube in the unformed spinal cord) and anencephaly (fetal malformation of the brain - the absence of the cerebral hemispheres, the cranial vault bones and soft tissues).
In the study, experts found an association between these diseases and exposure to certain harmful substances, in particular polycyclic aromatic hydrocarbons (PAHs), coming from sources such as domestic coal stoves, cigarette smoke and exhaust gases of vehicles.
Also found that the risk of birth defects is much higher in the case of certain hazardous substances of organic origin are found in the placenta. For example, scientists have found in the placenta, a high content of two hazardous substances that lead to the birth of a child with defects or stillbirth. We are talking about endosulfan and lindane. It is known that endosulfan is used to protect a number of crops (cotton, potatoes, tomatoes, apples), for example, insects, and is currently banned in the United States. Relatively recently, a ban on the use of lindane for seed treatment on wheat, barley, oats, rye and corn.
"We suspected that some of these pollutants are associated with an increase in birth defects, but we did not have sufficient evidence to this claim. In our study, we clearly showed that the concentration of harmful substances in the placenta can cause birth defects in children" - said Richard Finnell, head of genomic research from the Children's Medical Center in Texas, Dell (Dell Children's Medical Center).
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| Category: Medical World News | (03.11.2011)
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| Views: 370
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