Pollution and offspring

azgek1978/epictura

Published the 24.10.2017 at 14h13

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Keywords :

pollutionADNenvironnementcancerpollution air

Many uncertainties remain about the links that may exist between the environment and human health. All recent studies, however, cold in the back.

We know that pollution is a threat slow and insidious. We know that it is a ticking time bomb whose countdown has already begun, with the considerable increase in the number and diversity of allergies, cardiovascular diseases and cancers.

We forget that there are more than 15 years, were found in the blood of forty meps, who had participated voluntarily in this test, an incredible amount of chemicals to the environment. And last week, the confirmation of the 9 million annual deaths by the Lancet, the american journal of reference.

And our children. It is necessary to ponder the results of a canadian study that will leave you breathless on the quality of the air that surrounds us. It must be confessed that the authors of this work went a bit strong : they have indeed locked up, for 10 weeks, mice in cages placed in vicinity of a highway. These rats of the cities were subject to a very high concentration of dust, hydrocarbons of specific that are known to be very carcinogenic. Canadian researchers have looked at the quality of what we have of more precious : the genetic inheritance, the DNA. In the batch of mice from the highways, the rate of DNA mutation were 2-fold higher than that of field mice. And these mutations have been passed on to their offspring. However, and this is the only element that is reassuring to this study, they do not cause in the offspring of diseases or obvious deformities, only the DNA has mutated. The conclusion of the Canadians is without appeal : “The air particles cause genetic changes that can be passed from one generation to another “.

The risk of carcinogenicity of pollution to humans and animals are strongly supported by a large number of scientific data varied. Studies of individuals exposed, through their work, to the air pollution showed that, compared to controls, increased frequencies of chromosomal aberrations.

Exposure to air pollution in the professional environment or in urban environments, and industrial is also associated with changes in the expression of genes involved in injury and repair of the DNA.

The air pollution is certainly at the origin of many diseases, but we know with certainty that it impairs also heredity. This was a story of a mouse, became a story of man.