passionless Droning about autism

Posts Tagged ‘BPA

Hello friends –

One of my biggest problems with the Fairytale of a Static Rate of Autism is that we need to ignore the reckless environmental engineering that our species has engaged upon in the past few decades.  My concerns lay within the inherent, difficult to underestimate stupidity of our actions, wherein our perceived understanding of the impact our actions are far less pronounced than the actual impact of our actions.   For the telescopic illustration of this worldview, go back any number of years where X is greater than thirty, and see if the expectations and predictions of those times match up well with what has actually occurred.     While our achievements are great and wondrous, it is at our great peril we come to believe we understand sufficiently our actions to predict their outcomes. 

In any case, a progenitor of great concern, or indeed, impending doom, to my mind, is the increasing environmental ubiquity of a variety of industrial chemicals that have the potential to interfere with biological processes in difficult to predict ways, endocrine disruptors.   Although there are no doubt naturally occurring substances with similar properties, for purposes of this discussion, lets assume that my concern (and yours), should be with chemicals that were manufactured by man that have molecular structures so similar to naturally occurring molecules that they can interfere with low level metabolic processes in a myriad of ways that are difficult to understand without very detailed analysis.  Unfortunately, subtle effects during critical developmental time frames can propagate outward into long lasting, not so subtle effects.  Doubling down, we are largely reliant on corporations largely responsible for the next quarter share price to ascertain if subtle effects are happening or not. 

To  start the horror show, considers Bisphenol-A , a plasticizer used in pretty much everything, but especially in things like the tupperware you put in the microwave, bottles you give your baby, canned goods, or anything else you buy in the grocery that has a shelf life.  This particular mish mash of atoms tends to break down into something that is chemically very similar to estrogen, so similar, in fact, that the keys and locks of the cellular machinery of your metabolism can get confused.   It turns out, when this happens, we start seeing disturbing associations between circulating levels of BPA and a variety of conditions you’d rather not have, including heart disease and diabetes.  On top of tons of animal models of BPA exposure and metabolic dysfunction, immune changes, and we now have several human studies wherein urinary levels of these chemicals is associated with adverse outcomes.    And those are just the direct effects!

It would seem that BPA can have epigenetic effects too, wherein it can modulate which genes get expressed, and that’s a lot like getting a whole different set of genes.  For a fascinating (and terrifying) ride, I’d recommend that anyone take a look at this slide show from NOVA science now that goes over some of the effects of BPA to a prenatal environment.  I  double dog dare anyone who doesn’t think we are doomed to watch this episode. 

That was the good news. 

The uncontested facts on the ground are that, as a species, we are being exposed to BPA in ways that no previous generations of humans, or mammals, vertebrates, invertebrates, or living thing has ever been exposed to.  There is no way we are clever enough to understand the ramifications of this, and yet, we have up and distributed BPA in measurable and non trivial concentrations in every human body touched by modern convenience. 

The Scary Chemicals stories will involve research on a variety of chemicals identified as endocrine disruptors with known or suspected properties that would allow them to interact with development in ways meaningful to autism research.   BPA is one.  There are many, many others.

Oh well.

– pD

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