Navigation Links
Newborn weights affected by environmental contaminants
Date:6/15/2009

Montreal, June 15, 2009 Recent epidemiological studies have revealed an increase in the frequency of genital malformations in male newborns (e.g., un-descended testes) and a decrease in male fertility.

The role played by the growing presence in our environment of contaminants that reduce male hormone action could explain this phenomenon.

It is known that the birth weight of males is higher than that of females due to the action of male hormones on the male fetus.If the exposure of pregnant women to environmental contaminants that diminish the action of male hormones has increased over the years, one would expect to see a decrease in the sex difference in birth weight.

This is exactly what a new study published in the July 2009 issue of Epidemiology shows. Investigators analyzed the Public Health Agency of Canada's database on the birth weights of more than five million children born in Canada between 1981 and 2003.

Using statistical methods that control for changes over time of mother's age and parity, the investigators effectively show a sustained decrease in birth weight differences between boys and girls, which supports the hypothesis of growing endocrine disruption related to environmental contaminants. Contaminants found in plastic materials represent plausible candidates, since they are known to diminish the action of male hormones.

"Our study underlines the importance of probing the impact of environmental contaminants on the health of mothers and fetuses and on the reproductive potential of future generations," says lead researcher Dr. Guy Van Vliet, a pediatric endocrinologist and investigator at the Sainte-Justine University Hospital Research Center and a professor at the Department of Pediatrics of the Universit de Montral.


'/>"/>

Contact: Nicole Saint-Pierre
nicole_saint-pierre@ssss.gouv.qc.ca
514-345-4931 x2555
University of Montreal
Source:Eurekalert

Page: 1

Related medicine news :

1. Newborns of South Asian and East Asian descent misclassified as underweight at birth: Study
2. AIDS Treatment Activists Push UNAIDS and WHO to Meet Commitments to Reduce HIV in Women and Newborns
3. Programs to Prevent HIV in Newborns Failing in the Developing World - Over 900 Avoidable HIV Infections Every Day
4. Influenza pandemic planning needed to assure adequate care for pregnant women and newborns
5. Resuscitated Newborns at Risk for Lower IQs
6. £2.8 million grant to raise standards in maternal and newborn health
7. Omega-3s May Benefit Newborns, Menopausal Women and Obese Individuals
8. Dont rely on jaundiced eye for assessing newborns
9. Dont Rely on Jaundiced Eye for Assessing Newborns
10. Newborn Screenings Now Required Across U.S.
11. States Expand Newborn Screening for Life-Threatening Disorders; New March of Dimes Report Finds State-By-State Gaps Nearly Eliminated
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/29/2016)... (PRWEB) , ... April 29, 2016 , ... Conditions were ... at Cove Island Park on Sunday, with sunny skies, a light breeze and temperatures ... nearly $33,000. , The 5k Run and Walk and 1-mile walk were ...
(Date:4/29/2016)... ... 29, 2016 , ... A new study by a Johns ... hernia have better survival rates if surgery is performed early. Approximately one in ... diaphragm fails to form completely, letting abdominal organs into the chest cavity and ...
(Date:4/29/2016)... ... 2016 , ... The Wharton School of the University ... of the 2016 Wharton Business Plan Competition —as well as the Wharton ... the Committee Award for Most ‘Wow Factor,’ making them the first team in ...
(Date:4/29/2016)... ... April 29, 2016 , ... ... announces the Gyrociser, an exercise invention which aids in proper muscle development. , ... Cooper, CEO and Creative Director of World Patent Marketing. "Globalization has threatened the ...
(Date:4/29/2016)... ... April 29, 2016 , ... Melanoma is the deadliest type of skin cancer. Although only ... majority of skin cancer deaths. More than 10,000 people are expected to die of melanoma ... 62, it is the one of the most commonly diagnosed cancers in young women. A ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)... 2016  ValGenesis, Inc., the market leader ... today announced that a prominent world provider ... chronic kidney failure has selected ValGenesis Validation ... validation process. The global medical device manufacturer ... manage their validation processes electronically. Upon completion ...
(Date:4/27/2016)... PARIS , le 27 Avril 2016 /PRNewswire/ ... chiffre d,affaires a progressé de +5% sur le ... ventes récurrentes de consommables  Croissance de ... Mauna Kea Technologies (Euronext : ... multidisciplinaire d,endomicroscopie confocale laser, annonce aujourd,hui son chiffre ...
(Date:4/27/2016)... , April 27, 2016 Tie-up ... initiative to save newborns   ... women & newborns in collaboration with Breast Milk Foundation (BMF), ... first Pasteurized Human Milk Bank, ,Amaara, in Delhi-NCR today. This ... food source for infants and should be available to babies ...
Breaking Medicine Technology: