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:3/11/2016)... 2016 --> ... "Image Recognition Market by Technology (Pattern Recognition), by Component ... Deployment Type (On-Premises and Cloud), by Industry Vertical and ... MarketsandMarkets, the global market is expected to grow from ... by 2020, at a CAGR of 19.1%. ...
(Date:3/9/2016)... BEACH GARDENS, Fla. , March 9, 2016 ... identity management authentication and enrollment solutions, today announced ... DigitalPersona ® Altus multi-factor authentication ... IT and InfoSec managers to step-up security where ... Washington, DC . ...
(Date:3/2/2016)... 2016 http://www.researchandmarkets.com/research/wzwqtz/global_biometrics ... the  "Global Biometrics Market in Hospitality Sector ... http://photos.prnewswire.com/prnh/20130307/600769) , , Global biometrics market in ... CAGR of around 27%   --> ... the addition of the  "Global Biometrics Market ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... ... April 27, 2016 , ... ... mobile devices with fingerprint recognition for secure access, voice recognition for hands-free communication, ... ways consumers are interacting with biometrics technology today. But if they asked ...
(Date:4/27/2016)... (PRWEB) , ... April 27, 2016 , ... ... (d/b/a Biohaven) is pleased to announce the appointment of John Tilton as Chief Commercial ... Executive Director and one of the founding commercial leaders responsible for the commercialization ...
(Date:4/27/2016)... ... 27, 2016 , ... A compact PET scanner called NuPETâ„¢ ... (Magnetic Resonance Imaging) in existing third-party MRI systems. PET and MRI are complementary ... subjects. Simultaneous PET/MRI imaging offers a solution to many challenges that face researchers ...
(Date:4/27/2016)... PARIS , April 27, 2016 ... system disorders, today announces the appointment of Catherine Moukheibir as ... succeed MedDay,s previous Chairman, Jean Jacques Garaud , who ... The change is effective immediately. Catherine started her ... Boston and London .  She ...
Breaking Biology Technology: