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:3/27/2017)... London UK (PRWEB) , ... March 27, 2017 ... ... agility and ability to gain site attention and engagement over the household brands ... educational webinar will discuss how partnering with the right outsourcing payments ...
(Date:3/27/2017)... (PRWEB) , ... March 27, 2017 , ... A study ... Buckingham MD, and his colleague, Sudeep Roy, MD, was recently published in the ... Electrocautery Efficacy in Rhytidectomy” details Drs. Buckingham and Roy’s study on the use of ...
(Date:3/27/2017)... ... March 27, 2017 , ... Buzzies parent company, The ... for Rent the Runway Foundation and UBS’ Project Entrepreneur. Mayo will present her pitch ... 8. , Project Entrepreneur’s second annual venture competition ignites bold ideas by providing ...
(Date:3/27/2017)... Niles, IL (PRWEB) , ... March 27, 2017 ... ... testing systems, recently received the CE Certificate of Conformity for the Smart System® ... meet or exceed the highest industry standards and specifications such as ANSI, ISO ...
(Date:3/27/2017)... ... March 27, 2017 , ... American Veterinarian™, the leading ... veterinary medicine, announces the launch of Veterinarian’s Money Digest™, a business and financial ... edition of American Veterinarian™. , “We look forward to launching Veterinarian’s ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... 27, 2017  Twist Bioscience, a company accelerating science ... that it raised an additional $33 million. To date, ... "It is an exciting time to ... and continue to deliver industry-leading gene volume to our ... Emily M. Leproust, Ph.D., CEO of Twist Bioscience. "We ...
(Date:3/27/2017)... , March 27, 2017  PhaseRx, Inc. (NASDAQ: ... life-threatening inherited liver diseases in children, today reported ... year ended December 31, 2016 and provided an ... "PhaseRx continued to make progress during the fourth ... results from our non-human primate safety study, and with ...
(Date:3/27/2017)... , March 27, 2017 Invivotek, LLC, a ... in vivo pharmacology contract research organization (CRO), ... to its newly expanded preclinical research facility in ... provides a cleaner, renewable energy source to reduce costs ... Completion of the Genesis Solar Farm follows Invivotek,s recent ...
Breaking Medicine Technology: