Navigation Links
PCBs still affecting our health decades later
Date:11/24/2013

Although PCBs have been banned in the United States since 1979, University of Montreal and CHU Sainte-Justine researcher Maryse Bouchard has found that higher levels of the toxin was associated with lower cognitive performance in seniors. There is a significant association between PCB levels and cognitive abilities among individuals aged 70 to 84 years; the correlation was also detected to a lesser extent among people aged 60-69 years. This analysis also showed that the association differed by sex. Women in the older age group had the largest diminution in cognition in relation to exposure. "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," Bouchard said.

The use and production of PCBs have been phased out for over 40 years, but these highly persistent substances are still found in the blood of most individuals, especially older people. 708 Americans participated in Bouchard's study, which involved providing blood samples to determine the levels of toxins in their bodies and completing a memory and motor-skill task to determine their cognitive performance. The PCB levels found in their bodies were representative of those in the general U.S population. "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," Bouchard said. "Our present findings suggest that PCBs, even at levels generally considered to pose low or no risk, may contribute to cognitive deficits."

PCB disposal processes currently range from effective remediation to deliberate dumping. They accumulate in the lipid tissues of animal and marine life forms, and biomagnify across the food chain. As a result, PCBs are today ubiquitously present in tissues of human populations, in North American and around the world. This study underscores the importance of improving our response to PCBs as a health hazard.


'/>"/>

Contact: William Raillant-Clark
w.raillant-clark@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert

Related medicine news :

1. Men Can Still Ask for PSA Test, and Some Should, Doctors Say
2. Fewer Stillbirths Among Pregnant Women Vaccinated Against Flu
3. Many Still Tanning, Despite Dangers, Survey Finds
4. Once-Obese Women Still Face Stigma, Study Finds
5. Smallest, Largest Fetuses at Higher Risk of Stillbirth
6. People With Darker Skin Still at Risk for Melanoma
7. In-Person Bullying Still Bigger Problem Than Cyberbullying: Expert
8. More Americans Walking, But Still Not Enough, CDC Says
9. PSA Tests Overall Benefit Still Unclear: Study
10. Wayne State researchers say adolescent smoking prevention programs still critical
11. Smokers Are Still High Schools Cool Kids, Study Finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/21/2017)... (PRWEB) , ... January 21, 2017 , ... ... Redwood Family Dermatology has recently joined their multi-specialty medical group. The ... range of cosmetic services. , “We’re excited to add this excellent dermatology practice ...
(Date:1/21/2017)... ... January 21, 2017 , ... In the United States, 20 ... the freedom of recovery, they often feel shame for having struggled with an eating ... (PTSD). In the workshop, “Rising Strong in Life After an Eating Disorder” -- to ...
(Date:1/20/2017)... ... , ... Spectrum Aquatics Launches New ADA Portable Motion Trek BP 300 Lift. Built for durability, ... on wheels, it can be wheeled out of the way and stored when not in ... "We have transformed the feedback from customers into specific enhancements and created a new product ...
(Date:1/20/2017)... ... 20, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh has posted ... world. Yisrayl says this generation is a time like no other and society needs to ... , Yisrayl says he does not want to sound like an old bible beater because ...
(Date:1/20/2017)... ... January 20, 2017 , ... Doctor C LLC, a ... the January ECRM trade show to continue the marketing and distribution of its product, ... known for providing 400 percent better absorption than traditional vitamin C supplements. At the ...
Breaking Medicine News(10 mins):
(Date:1/19/2017)... ALTO, Calif. , Jan. 19, 2017   ... research, is excited to announce that the first ... Cancer Biology  (RP:CB) have been published in eLife ... this project represents the first practical evaluation of ... result in reproducible studies. Unlike other assessments of ...
(Date:1/19/2017)... 19, 2017 New Review ... Address Motor Symptoms and Motor Complications in Mid- ... ... (Logo: http://photos.prnewswire.com/prnh/20151014/276718LOGO) C ... Neurological Review,2016;11(Suppl. 2): 2-15, http://www.touchneurology.com/articles/safinamide-new-therapeutic-option-address-motor-symptoms-and-motor-complications-mid-late ...
(Date:1/19/2017)... global  pacemaker market  is expected to reach USD 12.3 billion by 2025, according ... cardiac conditions coupled with the availability of medical coverage is a key driving ... devices are supporting the expansion of this vertical. ... ... Logo ...
Breaking Medicine Technology: