Navigation Links
GW researcher and colleagues identify environmental exposure to organochlorines may impact male reproduction
Date:1/9/2012

WASHINGTON (Jan. 9, 2011) Melissa Perry, Sc.D., M.H.S., professor and chair of the Department of Environmental and Occupational Health at the GW School of Public Health and Health Services and adjunct associate professor at the Harvard School of Public Health, led an observational study indicating that environmental exposure to organochlorine chemicals, including Polychlorinated Biphenyls (PCBs) and p,p'-DDE (the main metabolite of the insecticide DDT) can affect male reproduction. The research was published online on Dec. 21, 2011 in the journal Environmental Health Perspectives.

The researchers studied 192 men who were part of couples that were sub-fertile, to see if the men with higher levels of organochlorines in their blood showed evidence of increased rates of sperm abnormalities. They looked for sperm disomy, which occurs when sperm cells have an abnormal number of chromosomes. While all men have a certain number of sperm with such abnormalities, researchers found that men with higher levels of DDE and PCBs had significantly higher rates of sperm abnormalities.

"This research adds to the already existing body of evidence suggesting that environmental exposure to certain chemicals can affect male fertility and reproduction. We need to further understand the mechanisms through which these chemicals impact sperm," said Dr. Perry. "While we cannot avoid chemicals that already persist in the environment, it is imperative that decisions about putting biologically active chemicals into the environment need to be made very carefully, because there can be unanticipated consequences down the road."

The researchers used a new sperm imaging methodology developed by Dr. Perry and colleagues to detect the chromosomal abnormalities, which allowed them to study a larger sampling of individuals than previous studies.


'/>"/>

Contact: Anne Banner
abanner@gwumc.edu
202-994-2261
George Washington University Medical Center
Source:Eurekalert

Page: 1

Related biology news :

1. Wistar Institute researcher receives New Innovator award from NIH
2. NC State researchers get to root of parasite genome
3. Researchers find animal with ability to survive climate change
4. Researchers find an essential gene for forming ears of corn
5. Researchers note differences between people and animals on calorie restriction
6. Researcher working on destruction of chemical weapons
7. Researchers study acoustic communication in deep-sea fish
8. Researchers discover that growing up too fast may mean dying young in honey bees
9. Researchers study how pistachios may improve heart health
10. UI researchers find potentially toxic substance present in Chicago air
11. Researchers develop new self-training gene prediction program for fungi
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/22/2016)... 2016   Acuant , the leading ... has partnered with RightCrowd ® to ... Management, Self-Service Kiosks and Continuous Workforce Assurance. ... functional enhancements to existing physical access control ... with an automated ID verification and authentication ...
(Date:6/20/2016)... -- Securus Technologies, a leading provider of civil ... investigation, corrections and monitoring announced that after exhaustive ... the final acceptance by all three (3) Department ... (MAS) installed. Furthermore, Securus will have contracts for ... October, 2016. MAS distinguishes between legitimate wireless device ...
(Date:6/9/2016)...  Perkotek an innovation leader in attendance control systems is proud to announce the ... employers to make sure the right employees are actually signing in, and to even ... ... ... ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... YORK , June, 23, 2016  The Biodesign ... to envision new ways to harness living systems and ... Modern Art (MoMA) in New York City ... than 130 participating students, showcased projects at MoMA,s Celeste ... Paola Antonelli , MoMA,s senior curator of architecture ...
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the Industry ... Supplyframe Design Lab . Located in Pasadena, Calif., the Design Lab’s mission ... hardware projects are designed, built and brought to market. , The Design Lab ...
(Date:6/23/2016)... ... June 23, 2016 , ... In a new case report published ... how a patient who developed lymphedema after being treated for breast cancer benefitted from ... the paradigm for dealing with this debilitating, frequent side effect of cancer treatment. ...
(Date:6/23/2016)... BEACH, Calif. , June 23, 2016  Blueprint ... new biological discoveries to the medical community, has closed ... co-founder Matthew Nunez . "We have ... us with the capital we need to meet our ... will essentially provide us the runway to complete validation ...
Breaking Biology Technology: