Exposure to traffic-related pollution early in life linked to childhood asthma

Washington, June 19 (ANI): Exposure in infancy to nitrogen dioxide (NO2), a component of motor vehicle air pollution, has been found to be strongly associated with later development of childhood asthma, according to a team led by UCSF scientists.

The researchers said their findings indicate that air pollution might, in fact, be a cause of the disease.

In the study, the largest to date of air pollution exposure and asthma risk in minority children in the United States, the team found that for every five parts per billion increase in NO2 exposure during the first year of life, there was a 17 percent increase in the risk of developing asthma later in life.

The study involved 3,343 Latino and 977 African American participants.

"Many previous studies have shown an obvious link between traffic-related pollution and childhood asthma, but this has never been thoroughly looked at before in an all-minority population," said lead author Katherine K. Nishimura, MPH, a graduate student in the laboratory of senior author Esteban G. Burchard, MD, MPH, a UCSF professor of bioengineering and therapeutic sciences and medicine and director of the UCSF Center for Genes, Environment and Health.

What made the current study different from previous research, said Nishimura, was that the scientists looked retrospectively at the study participants' exposure to air pollution in early childhood, before they developed asthma. Children who developed asthma before this exposure period were excluded.

Study co-author John R. Balmes, MD, of UC San Francisco and UC Berkeley, pointed out that a previous study of children living in southern California showed that living and attending school close to major roadways was associated with an increased risk of new-onset asthma.

"Together with our findings, this makes for strong evidence that reducing children's exposure to traffic emissions can prevent some cases of asthma," said Balmes.

The study is reported online currently in the American Journal of Respiratory and Critical Care Medicine ahead of print publication. (ANI)

Matches

MORE TOP STORIES TODAY

Bangalore's arsenal blazes to victory

Bangalore's arsenal blazes to victory

Yuvraj Singh was back to his best in his first match for Royal Challengers Bangalore. More »

Time for Chennai to enter familiar cocoon

Time for Chennai to enter familiar cocoon

Chennai have been able to purchase batting replacements for the loss of Michael Hussey and spin reinforcements in the form of Samuel Badree. They appear… More »

Evenly matched Rajasthan and Hyderabad face-off

Evenly matched Rajasthan and Hyderabad face-off

A quality that defines Rajasthan and Hyderabad is consistency. Rajasthan was one among two teams to enjoy complete dominance at home last season. Hyderabad… More »

BCCI to meet before next court hearing

BCCI to meet before next court hearing

The BCCI will hold an emergent working committee meeting on April 20 to discuss the future course of action with regard to the Supreme Court hearing concerning… More »

Kallis, Narine star in Knight Riders’ crushing win

Kallis, Narine star in Knight Riders’ crushing win

An all-round display saw Knight Riders thump Mumbai Indians by 41 runs in the IPL-7 opener. More »

Gavaskar wants a clean IPL

Gavaskar wants a clean IPL

"Integrity is non-negotiable..." says the BCCI's interim chief ahead of Season 7 of the tainted league. More »

'Yak' Kallis still on top of his game

'Yak' Kallis still on top of his game

The 38-year-old South African veteran turned it on for Kolkata Knight RIders in the opening match of IPL-7. More »

Srinivasan named in fixing report: SC

Srinivasan named in fixing report: SC

The court emphasised that the tainted administrator can no longer work for the BCCI. More »

Yuvraj happy to play for RCB: Kohli

Yuvraj happy to play for RCB: Kohli

New-look RCB will play their first game of IPL-7 on Thursday. More »

Shane Watson issues moral warning

Shane Watson issues moral warning

'Everyone knows what is right and what is wrong and if you do the wrong thing it will be found out' More »

Why I'm not looking forward to the IPL

Why I'm not looking forward to the IPL

Welcome to another season of a league that many watch but few trust. More »

IPL: News Line

IPL: News Line

A round-up of all the news from this season of the IPL. More »

Johnson may quit T20s for Tests

Johnson may quit T20s for Tests

Australia's Mitchell Johnson may quit limited-overs cricket to prolong his test career with an eye on the 2015 Ashes series in England, the fast bowler… More »

Nepal players call off boycott

Nepal players call off boycott

Thaw in relations after formation of an advisory committee that would work in tandem with the Cricket Association of Nepal. More »

There's a lot going on: Fleming

There's a lot going on: Fleming

He experienced anxious moments in the lead-up to the tournament as the courts decided on whether to suspend the franchise, he said, but stressed that the… More »

Latif couldn’t work with tainted players

Latif couldn’t work with tainted players

Former Pakistan cricket captain Rashid Latif said Tuesday he turned down the job of national chief selector because he could not work with ex-players tainted… More »

We are not over-confident: Bailey

We are not over-confident: Bailey

Indian Premier League — George Bailey-led Kings XI Punjab will face Chennai Super Kings on Friday. More »

Big runs expected, with bat and ball

Big runs expected, with bat and ball

Royal Challengers Bangalore: Their main concern, once again, is the fast bowling More »

Taxing issue — BCCI hits roadblock

Taxing issue — BCCI hits roadblock

MoU between BCCI & its units to avoid double taxation delayed after a few decline to share details. More »

Black Caps pick rookie duo for West Indies

Black Caps pick rookie duo for West Indies

New Zealand selectors included two new caps in a 15-man Test squad named Tuesday to tour the West Indies, with injury-hit spinner Dan Vettori's future… More »

The stage is set for IPL-7 to start

The stage is set for IPL-7 to start

The Preview — Defending champions Mumbai Indians take on Kolkata Knight Riders More »

Srinivasan appeals to court to allow BCCI comeback

Srinivasan appeals to court to allow BCCI comeback

He was aggrieved by the allegations against him during the hearing. More »

India: cricket's Brazil

India: cricket's Brazil

They are tough to beat with a big talent base exposed to good facilities. (CYCSPL) More »

Delhi Daredevils say no to gifts

Delhi Daredevils say no to gifts

Franchises are doing their bit to refurbish the image of the tainted league. More »