Banned PCBs still present in population, affecting brain function after four decades

Thursday, December 05, 2013 by: L.J. Devon, Staff Writer
Tags: PCBs, banned chemicals, brain function

eTrust Pro Certified

Delicious Pin It
(NaturalNews) Polychlorinated biphenyl compounds (PCBs) were banned in the US about three decades ago, but the negative effects of these chemical compounds continue to show up in seniors.

Maryse Bouchard, a researcher from the University of Montreal and CHU Sainte-Justine, has made a significant association between high PCB exposure and lower cognitive abilities in seniors aged 70 to 84 years. Bouchard reports, "While most studies have looked at the impact of PCBs on infant development, our research shows that this toxin might affect us throughout our lives."

PCBs phased out decades ago, but still lurking in individuals

For over 40 years, the production of PCBs has been phased out of manufacturing, but this hasn't stopped the chemicals from lingering around, especially in seniors. In the study from the University of Montreal, PCBs were still found lingering in the blood of all individuals studied. In the study, 708 Americans' blood samples were collected to determine the levels of toxins in their bodies. The participants completed a memory and motor skills test to determine their cognitive performance in the presence of PCBs.

PCB levels were pervasive in the participants' blood. Even levels generally considered safe, posing low risk, were associated with cognitive deficits in the elder participants.

Bouchard summed up the results, "Aging persons could be at particular risk because of higher cumulative exposure built up across a lifetime, susceptibility due to underlying medical conditions, such as vascular disorders, and diminished cognitive reserve capacity."

Since PCBs accumulate in the lipid tissues of mammals and marine life, they can spread throughout the food chain. With their ability to spread and reside in animal cells, PCBs have made a home in the cells of human populations.

PCBs were mass produced by Monsanto, the infamous genetic seed engineer

PCBs were once thought of as safe, as many chemicals compounds are believed to be today. As Monsanto took over commercial production of PCBs in 1929, use expanded in the manufacture of flexible PVC coatings and electrical components. As the electrical industry took off decades ago, PCBs were used commercially in coolants and insulating fluids for transformers and capacitors.

Used as stabilizing additives and for heat resistance, PCBs possessed a wide range of uses. Monsanto, who marketed PCBs under the trade name Aroclor up until 1977, began phasing out production of the toxin as awareness grew of PCB's terrible health effects and as the Stockholm Convention outlawed the compounds globally.

PCBs destroy cognitive performance, alter brain function

An Environmental Health News report goes into further detail on how PCBs affect brain function. A study from the Netherlands points to the ability of PCBs to manipulate brain signals. In the study, specific PCB compounds were found to increase the signalling power of a specific brain chemical which normally "squelches nerve messages."

GABA, the chemical responsible for halting specific brain signals between nerves, is enhanced in the presence of PCBs. The alteration of these chemical pathways in the brain interfere with the communication of neurons. This could affect a person's behavior and their ability to perform motor skills related tasks.

The Netherlands study examined PCB's effect on human post-synaptic neurons. While most PCB research has focused on changes in the presynaptic neuron, this study went further. After injecting DNA for the human GABA receptor into eggs from African clawed frogs, the scientists mixed the GABA DNA with mixtures of different PCBs, allowing them to study the effects of select PCBs on the human GABA receptor.

The results showed that specific PCB compounds enhanced the ability of GABA DNA to stop brain signals. This was witnessed through the increased level of normal electrical current generated when GABA binds to its receptor.

Since PCBs can store in human cells throughout a lifetime, the brain signals of seniors can be altered in drastic ways, affecting their cognitive performance as they age.

Sources for this article include:




Get breaking news alerts on GMOs, fluoride, superfoods, natural cures and more...
Join over four million monthly readers. Email privacy 100% protected. Unsubscribe at any time.

Have comments on this article? Post them here:

comments powered by Disqus

Take Action: Support NaturalNews.com

Email this article to a friend

Permalink to this article:

Reprinting this article: Non-commercial use OK, cite NaturalNews.com with clickable link.

Embed article link: (copy HTML code below):
Most Popular
Today | Week | Month | Year

See all Top Headlines...


Now Available at ShopNaturalNews.com

O3 Essentials OraJuvenate™
A powerful, cleansing dental cream for maximum oral/dental health.
New Cancer Solutions
Over 3 hours of content covering today’s best cancer tests, how to kill cancer cells and the best diets and exercise routines.
Freeze-Dried 100% Organic Whole Corn
Our freeze-drying method preserves taste, texture and nutrients better than any other food preservation method ever invented.
Fenix TK35 Flashlight
Tough, waterproof, extremely bright and it’s touted to throw an 800+ lumen beam more than 1,000 feet into the night.
Inca Treasure Smoothie Pack
This pack of our four most popular superfoods from South America is the perfect combo pack for smoothie lovers.
Pink Himalayan Salt
This salt delivers significant levels of magnesium, zinc and selenium, with trace levels of dozens of other elements.
Pinhole Glasses - Aviator Style
Pinhole glasses are becoming famous for helping people improve their vision without the risks of laser surgery.
Oxy-Rich Facial Serum
O3 Essentials Jojoba Oxy-Rich Facial Serum is cellular nourishment for your skin. Helps smooth fine lines while enhancing tissue elasticity.
Freeze-Dried 100% Blackberry Halves
Our freeze-dried blackberry halves are grown in Serbia under strict organic standards.

Also on NaturalNews:

Health Ranger Videos
Activist music
CounterThink Cartoons
Food documentaries
FREE Special Reports
Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

Most Popular Stories

Flu shot kills 19-year-old, but vaccine industry still has total immunity against lawsuits
Here's a nutty fact: Eating more tree nuts lowers the risk of all-cause death by up to 20 percent
Six important facts you're not being told about lost Malaysia Airlines Flight 370
Malaysia Airlines Flight 370 now clearly a government cover-up: All evidence contradicts official story
10 other companies that use the same Subway yoga mat chemical in their buns
BLM fracking racket exposed! Armed siege and cattle theft from Bundy ranch really about fracking leases
High-dose vitamin C injections shown to annihilate cancer
U.S. treating meat with ammonia, bleach and antibiotics to kill the '24-hour sickness'
USDA to allow U.S. to be overrun with contaminated chicken from China
Vaccine fraud exposed: Measles and mumps making a huge comeback because vaccines are designed to fail, say Merck virologists
Battle for humanity nearly lost: global food supply deliberately engineered to end life, not nourish it
Diet soda, aspartame linked to premature deaths in women

25 Amazing Facts About Food

This FREE downloadable report unveils a collection of astonishing and little-known facts about the food we eat very day. Click here to read it now...


Resveratrol and its Effects on Human Health and Longevity - Myth or Miracle.

Unlock the secrets of cellular health with the "miracle" nutrient Resveratrol Click here to read it now...


Nutrition Can Save America

FREE online report shows how we can save America through a nutrition health care revolution. "Eating healthy is patriotic!" Click here to read it now...

The Healing Power of Sunlight and Vitamin D

In this exclusive interview, Dr. Michael Holick reveals fascinating facts on how vitamin D is created and used in the human body to ward off chronic diseases like cancer, osteoporosis, mental disorders and more. Click here to read it now...

Vaccines: Get the Full Story

The International Medical Council on Vaccination has released, exclusively through NaturalNews.com, a groundbreaking document containing the signatures of physicians, brain surgeons and professors, all of which have signed on to a document stating that vaccines pose a significant risk of harm to the health of children. Click here to read it now...

Health Ranger Storable Organics

GMO-free, chemical-free foods and superfoods for long-term storage and preparedness. See selection at www.StorableOrganics.com

Recommended Resources On:

Natural News trends
Health Ranger news
Natural News GMOs
Mike Adams tracker
Natural News photos
Natural News Global
Natural News in focus
Natural News connect
Natural News shocking stories
Natural News radar
Health freedom
Dr. Paul Offit

This site is part of the Natural News Network © 2014 All Rights Reserved. Privacy | Terms All content posted on this site is commentary or opinion and is protected under Free Speech. Truth Publishing International, LTD. is not responsible for content written by contributing authors. The information on this site is provided for educational and entertainment purposes only. It is not intended as a substitute for professional advice of any kind. Truth Publishing assumes no responsibility for the use or misuse of this material. Your use of this website indicates your agreement to these terms and those published here. All trademarks, registered trademarks and servicemarks mentioned on this site are the property of their respective owners.

eTrust Pro Certified Android app on Google Play

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.