7 Nasty Effects of BPA – The Plastic Chemical

Bayer Behind BPA Study That Preserves Their Profits By Prolonging Your Risks

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Bron:Natural society

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(Verborgen) nieuws, Gezondheid, Ziekte, Kanker, Geografisch, Technologie

(Mike Barrett) Bisphenol a (BPA) is the widely used chemical found in many plastics, food  can linings, and even on US dollars and receipts. Known as an endocrine-disrupting chemical that mimics the hormone estrogen, BPA has been  linked to numerous negative health effects in countless studies. The worst part?  While the Food and Drug Administration considered banning the chemical in March of 2012, the ban  was denied, and BPA continues to be ubiquitous. So what exactly does mean?  It means the entire U.S. is still subjected to the chemical’s negative  effects.

Here are 7 nasty effects of BPA.

1. Breast Cancer

Breast cancer is slowly becoming one of the many well-known negative outcomes induced by BPA exposure. In fact, over  130 studies have confirmed the link between bisphenol A and to ailments like  breast cancer, obesity, and reproductive problems. Ironically, the popular  nonprofit Susan G. Komen for the Cure partners with  many bottled water companies for their ‘For the Cure’ races across the nation.  The problem, obviously, is that most of these plastic bottles contain BPA.

2. Early Puberty

While girls typically enter into puberty (or have in the past, at least) at  just over ten years of age, studies show that this age has fallen by more than a  year within only one generation. Some girls are even seeing  breasts at 7 years old. Although there are other factors to consider, BPA may be to blame as  well.

After examining  1,151 girls between the ages of 6 and 8 in the United States over a two year  period, researchers found that multiple chemical classes were detected at high  levels within the girls’ urine. About one-third of the girls went through  puberty prematurely.

“Our research shows a connection between chemicals that girls are  exposed to on a daily basis and either delayed or early development. While more  research is needed, these data are an important first step in evaluating the  impact of these common environmental agents in putting girls at risk,” lead  researchers Dr Mary Wolff said.

3. Heart Disease

Some research has linked both BPA and phthalates to  a disorder known as atherosclerosis. This disorder, which is the  hardening of the arteries through the buildup of plaques, negatively impacts  blood flow and ultimately increases your risk of heart disease.  Shocking, the research is not the first of its kind. One  team also found that individuals with higher levels of bisphenol-a in their  urine were more than twice as likely to suffer from coronary heart disease than  those with lower levels.

4. and 5. Infertility in Males and Females

Bisphenol a has been found to be adversely affecting male genital  development, subsequently leading to compromised fertility health. One study  examined the effects of BPA on the distance between the genitalia and  the anus in males, known as the Anogenital distance (AGD). AGD is very important  biologically for a number of reasons, and plays a prominent role in the health  of one’s fertility. Researchers found that parental exposure to BPA  during pregnancy was associated with shortened AGD in male offspring. In  other words, high level BPA exposure led to offspring with AGD defects.

AGD has been linked  to fertility in males, making BPA’s negative impact on the male reproductive  system noteworthy. Men with an AGD lower than the median, which sits around  52 mm (2 in), have seven times the chance of being  sub-fertile as compared to those with a longer AGD.

But males aren’t the only one’s suffering; BPA has been linked to  reproductive issues in women as well. In one study, researchers  found that BPA caused reproductive problems that can affect women, including  abnormal egg development. The eggs of fetuses exposed to BPA had difficulty  forming follicles, which ultimately increases the risk of eggs dying before  maturation. Additionally, the researchers observed other abnormalities, showing  signs that they would carry too many chromosomes as a result of not dividing  during development. This could lead to miscarriages or disorders like Down  Syndrome.

6. Sparks Multiple Negative Brain Alterations

Further adding on to BPAs long list of negative effects, some research has  also found that the chemical disrupts a gene responsible for proper nerve cell  function, ultimately leading to compromised brain development. Researchers of  the study, published in the journal Proceedings  of the National Academy of Sciences, discovered that BPA  could damage central nervous system development by disrupting a gene called  Kcc2.

“Our study found that BPA may impair the development of the central  nervous system, and raises the question as to whether exposure could predispose  animals and humans to neurodevelopmental disorders,” study researcher Dr.  Wolfgang Liedtke, M.D., Ph.D., said.

Another study found that exposure to bisphenol-A early in life  can spark changes in gene expression. The changes occur in a part of the brain  called the amygdala, which can lead to increased levels of anxiety.

The study abstract states:

“Early life exposure to Bisphenol A (BPA), a component of polycarbonate  plastics and epoxy resins, alters sociosexual behavior in numerous species  including humans. The present study focused on the ontogeny of these behavioral  effects beginning in adolescence and assessed the underlying molecular changes  in the amygdala.”

7. Obesity

Last, but certainly not least, BPA may be one of many factors responsible for  the obesity epidemic. One study found that high BPA exposure is associated  with obesity in the general adult population in the U.S.

Another study, examining  BPA concentrations in the urine of kids aged 6 to 19, found that obese  children made up 22% of individuals with the highest BPA levels in their  urine. About 10% of kids who had the lowest BPA concentration in their  urine were obese.

Additional Sources: Forbes, NY  Times, NationalGeographic

Bron: NaturalSociety.com 

Geplaatst door Redactie Earth Matters

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