La OMS alerta del peligro de compuestos de uso diario
Componentes de plásticos y cremas suponen una “amenaza global" por sus efectos en la salud
Estas sustancias químicas simulan la acción hormonal y pueden provocar enfermedades
REPORTAJE: Plastificados, por Lola Huete Machado
Jaime Prats Valencia 19 FEB 2013 - 22:01 CET
WHO warns of the danger of everyday compounds
Plastic components and creams pose a "global threat" for their health effects
These chemicals mimic the hormone action and can cause disease
FEATURE: Plastificados, by Lola Huete Machado
Jaime Prats Valencia 19 FEB 2013 - 22:01 CET
Endocrine disruptors are chemical compounds capable of simulating the behavior of hormones. Among them are the phthalates used in industry as plastic softeners, benzophenones, which are in the UV filters in sunscreens, parabens, used to extend the shelf life of cosmetic products such as shampoos, or bisphenol A ( BPA) found in plastics (polycarbonate and epoxy resins).
In recent years, these substances are under increasing attention to determine its implications in various diseases, especially related to metabolic problems. Yesterday, the United Nations Program for Environment (UNEP for its acronym in English) and the World Health Organization announced the contents of a report commissioned from 16 specialists to assess the scientific evidence regarding the effects of these substances. One of their main conclusions is that these chemicals are a "global threat" that have to be pending.
The document indicates the existence of some 800 components that cause or are suspected of causing alterations in hormonal regulation. Only "a small fraction" of them, say the researchers, have been analyzed to test the effects they have on the health of people.
In 2002 a report was similar to that presented yesterday. Then you could go further to raise the "weak evidence" that health was to be adversely affected by exposure to endocrine disruptors. Ten years later, the results are radically different. The researchers suggest openly that there is new evidence linking these chemical compounds with reproductive problems (either by infertility, tumors or malformations) or for effects on the thyroid, brain function, obesity and metabolism.
Disruptive activity, they insist, goes beyond altering mechanisms of action of estrogens and androgens or thyroid activity. Therefore, the experts convened by WHO and the United Nations there are possible links with male or female reproductive problems (not only in humans, including demographic declines linked to animal species). But also make reference to alterations related to neuronal development, immune or metabolic disorders. And even hormonal changes related tumors, despite the ignorance that indicate there about the origin of these neoplasms.
Previous work had shown evidence that some of the hormonal disruptors are behind the processes of accumulation of fat in the body.
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