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:1/18/2017)... ... January 18, 2017 , ... The VA Maryland Health Care ... a research project focused on multiple sclerosis (MS). Led by Christopher M. Jewell, ... control the disease without compromising normal immune function that often occurs during autoimmune ...
(Date:1/18/2017)... ... January 18, 2017 , ... A Palm Beach doctor plans to ... an international charity that provides free surgery to poor children suffering from cleft lip ... past I have run to support the efforts of the American Heart Association and ...
(Date:1/18/2017)... ... ... At Hallmark Nameplate, their commitment to quality is what sets them apart. ... This certification is another way they are making constant strides to provide all customers ... , The ISO 13485 Certification is a major accomplishment for Hallmark Nameplate and will ...
(Date:1/18/2017)... ... January 18, 2017 , ... ... support an aid project with the donation of cochlear implants. In February 2017, ... hearing and thus a fair chance of leading an independent life. This engagement ...
(Date:1/17/2017)... ... 17, 2017 , ... January is National Stalking Awareness Month (NSAM), now in its ... corners and commit the crime of stalking, a very real danger to many in our ... factor in stalking and other crimes. , “Stalking: know it. Name it. Stop it.”—so reads ...
Breaking Medicine News(10 mins):
(Date:1/18/2017)... PUNE, India , January 18, 2017 ... titled, "Breast Imaging Technologies Market by Type: Global Opportunity Analysis ... technologies market size was valued at $2,544 million in 2015 ... at a CAGR of 8.4% from 2016 to 2022. ... together accounted for over three-fourths market share in 2015. ...
(Date:1/18/2017)... Iowa , Jan. 18, 2017   ... that subsidiary Caretta Therapeutics plans, in the second ... Venodol, a topical roll-on intended to provide relief ... opioid and steroidal analgesics. It was developed under ... to commercialize products derived from snake venom. ...
(Date:1/18/2017)... DIEGO , Jan. 18, 2017  Dermata ... innovative products to treat a variety of dermatological ... lead compound DMT210, in a Phase 2 acne ... developed to downregulate the proinflammatory cytokines in the ... in acne rosacea. This clinical ...
Breaking Medicine Technology: