Navigation Links
Smog Exposure During Pregnancy Might Raise Child's Cancer Risk: Study
Date:4/9/2013

By Steven Reinberg
HealthDay Reporter

TUESDAY, April 9 (HealthDay News) -- Exposure to air pollution during pregnancy and the first year of life might increase the likelihood of developing certain childhood cancers, California researchers say.

Researchers from the University of California, Los Angeles School of Public Health collected data on children diagnosed with cancer before the age of 6 and local traffic exposure. The greater the traffic pollution, the higher the odds for acute lymphoblastic leukemia (white blood cell cancer), germ cell tumors (cancers of the testicles, ovaries and other organs) and eye cancer, they found.

These findings do not mean pollution actually causes these cancers, said lead researcher Julia Heck, an assistant researcher in the department of epidemiology. "This finding is an association, because nothing is proven yet," she said.

But the results do suggest that exposure to traffic pollution might increase risk for childhood cancers, Heck added. "Since this was the first study to report risks for these [uncommon childhood] cancers, these findings need to be confirmed in other studies," she said.

Areas of California are known for their unhealthy air. The state's topography and its warm, sunny climate tend to form and trap air pollutants, creating smog, according to the California Air Resources Board.

The researchers focused on pregnancy because certain cancers originate in the womb, Heck said.

But women shouldn't worry about their baby's risk for cancer based on this study, another expert said.

"There has been an association between air pollution and other diseases," said Dr. Rubin Cohen, director of the Adult Cystic Fibrosis and Bronchiectasis Center at the Long Island Jewish Medical Center in New Hyde Park, N.Y. "We know that pollution causes asthma, and that is probably more real than the cancer issue."

Cohen isn't sure the association between pollution and childhood cancers is causal, and he said there isn't much one can do about it anyway. "Moving is easier said than done," he said.

The study findings were scheduled for presentation Tuesday at the annual meeting of the American Association for Cancer Research in Washington, D.C.

For the study, Heck's team collected data on nearly 3,600 children under 6 years old who were born between 1998 and 2007 and listed in the California Cancer Registry. The researchers compared them with a similar number of healthy children.

The researchers were able to estimate the amount of traffic pollution at each child's home during the mother's pregnancy and the child's first year of life. The estimates included exposure to gas and diesel engines as well as traffic volume, emission rates and weather.

Based on their findings, Heck's group concluded the risk for cancer was increased with higher exposure to vehicular air pollution. "In terms of the risk, greater exposure was associated with a 5 percent increase in [acute lymphoblastic leukemia] cancers, an 11 percent increase in eye cancer and a 15 percent increase in testicle, ovary and other organ tumors," Heck said.

But whether any particular period is critical during pregnancy or the child's first year wasn't clear.

Another expert agreed that more research is needed before conclusions can be drawn about any actual risk for cancer from traffic pollution.

The study needs to be replicated to see if the same findings are seen in other cities, said Dr. Guillermo DeAngulo, a pediatric oncologist at Miami Children's Hospital, in Florida.

"There has been a concern about environmental factors playing a role in cancers," said DeAngulo, who was not involved in the study. "The question is how much of a role they play."

Genetic components also may be involved that may make cancer more likely for some of these children, he said.

Data and conclusions presented at meetings are typically considered preliminary until published in a peer-reviewed medical journal.

More information

For more information on air pollution, visit the U.S. National Library of Medicine.

SOURCES: Julia Heck, Ph.D., assistant researcher, department of epidemiology, University of California, Los Angeles, School of Public Health; Guillermo DeAngulo, M.D., pediatric oncologist, Miami Children's Hospital; Rubin Cohen, M.D., director, Adult Cystic Fibrosis and Bronchiectasis Center, Long Island Jewish Medical Center, New Hyde Park, N.Y.; April 9, 2013, presentation, American Association for Cancer Research annual meeting, Washington, D.C.


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Mercury Exposure Linked to Raised Diabetes Risk
2. Office Workers May Face Exposure to Flame Retardant
3. Lung Cancer Asbestos Victims Center Now Urges US Navy Veterans With Lung Cancer To Call Them If They Had Heavy Exposure To Asbestos On A US Navy Ship
4. Lung Cancer Asbestos Victims Center Now Urges Families To Help Them Identify A Nonsmoker Loved One Who Had Exposure To Asbestos In The Workplace And Now Has Lung Cancer
5. Lung Cancer Asbestos Victims Center Now Urges All Industrial Workers Who Had Exposure to Asbestos at Work and Now Have Lung Cancer to Call Them About Possible Compensation
6. Secondhand smoke exposure linked to signs of heart disease
7. Lung Cancer Asbestos Victims Center Urges Non Smokers Who Now Have Lung Cancer To Contact Them If They Had Exposure To Asbestos At Work-Possible Significant Compensation
8. Small molecules in the blood might gauge radiation effects after exposure
9. Early Exposure to Gluten May Help Babies Avoid Celiac Risk: Study
10. Exposure to Smog in Early Pregnancy Linked to Complications
11. Smog Exposure During Pregnancy Tied to Tinier Babies
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Smog Exposure During Pregnancy Might Raise Child's Cancer Risk: Study
(Date:6/25/2016)... ... June 25, 2016 , ... First Choice Emergency Room , the ... Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm facility. , “We ... new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice ...
(Date:6/25/2016)... ... , ... Conventional wisdom preaches the benefits of moderation, whether it’s a matter ... bar too high can result in disappointment, perhaps even self-loathing. However, those who set ... , Research from PsychTests.com reveals that behind the tendency to set low ...
(Date:6/24/2016)... CA (PRWEB) , ... June 24, 2016 , ... Marcy was in a crisis. Her ... would lash out at his family verbally and physically. , “When something upset him, he ... he would use it. He would throw rocks at my other children and say he ...
(Date:6/24/2016)... CA (PRWEB) , ... June 24, 2016 , ... Comfort ... the American Cancer Society and the Road To Recovery® program to drive cancer patients ... seniors and other adults to ensure the highest quality of life and ongoing independence. ...
(Date:6/24/2016)... York, NY (PRWEB) , ... June 24, 2016 ... ... publication Haute Living, is proud to recognize Dr. Barry M. Weintraub as a ... that “the most beautiful women in the world, and the most handsome men, ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 Any dentist who has made an ... current process. Many of them do not even offer this ... and high laboratory costs involved. And those who ARE able ... such a high cost that the majority of today,s patients ... Parsa Zadeh , founder of Dental Evolutions Inc. and ...
(Date:6/23/2016)... DUBLIN , June 23, 2016 ... "Global MEMS Devices Medical Market Analysis 2016 - Forecast to ... The report contains up to date financial ... reliable analysis. Assessment of major trends with potential impact on ... dive analysis of market segmentation which comprises of sub markets, ...
(Date:6/23/2016)... , , , WHEN: , , ... , , , LOCATION: , , , Online, with free registration ... PANELISTS:  , , , Frost & Sullivan,s Global Vice President of ... Analyst, Divyaa Ravishankar and Unmesh Lal, Program Manager , ... witnessing an exceptional era. Several new demand spaces, such as innovative ...
Breaking Medicine Technology: