Featured Research

from universities, journals, and other organizations

Early pregnancy in spring linked to child's susceptibility to food allergies, Finnish study suggests

Date:
October 20, 2010
Source:
BMJ-British Medical Journal
Summary:
A child's likelihood of developing food allergies can be traced back to the season during which he or she completes their first three months of life in the womb, new research from Finland suggests.

A child's likelihood of developing food allergies can be traced back to the season during which he or she completes their first three months of life in the womb, suggests research published online in the Journal of Epidemiology and Community Health.

The Finnish researchers base their findings on just under 6000 children, all of whom were born between 2001 and 2006 and lived in one area of Finland.

Out of the total, just under 1000 were tested for sensitisation to food allergens between the ages of 0 and 4 years, with the likelihood of a positive test result rising sharply during the first year of life.

Up to the age of 4, the incidence of an allergic response to certain foods varied according to season of birth, ranging from 5% for children born in June/July to 9.5% for those born in October/November.

Around one in 10 (11%) children, whose 11th week of development in the womb had occurred during April or May were sensitised to food allergens. This compared with a rate of 6% among children who reached that stage of fetal development in December/January.

Readings of ambient pollen for the years in question showed that levels of birch and alder pollen peaked during April and May.

When narrowed down to specific allergens, the results indicated that a child whose first three months of fetal development ended in April or May was three times more likely to be sensitised to milk and eggs than those who reached this stage of development in November or December.

Research already indicates that children born in autumn or winter are more prone to eczema and wheeze, and that they have higher levels of circulating antibodies to allergens than children born in spring or summer, say the authors.

This might be because the fetus begins to produce antibodies to allergens at around the 11th week of development, and antibodies to specific allergens by around 24 weeks, they suggest.

An allergic type response is thought to be necessary for the pregnancy to continue, and in some cases this persists after birth. But the timing of the development of sensitisation has been the subject of heated debate.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Cite This Page:

BMJ-British Medical Journal. "Early pregnancy in spring linked to child's susceptibility to food allergies, Finnish study suggests." ScienceDaily. ScienceDaily, 20 October 2010. <www.sciencedaily.com/releases/2010/10/101019212916.htm>.
BMJ-British Medical Journal. (2010, October 20). Early pregnancy in spring linked to child's susceptibility to food allergies, Finnish study suggests. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2010/10/101019212916.htm
BMJ-British Medical Journal. "Early pregnancy in spring linked to child's susceptibility to food allergies, Finnish study suggests." ScienceDaily. www.sciencedaily.com/releases/2010/10/101019212916.htm (accessed April 23, 2014).

Share This



More Health & Medicine News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
Study Says Most Crime Not Linked To Mental Illness

Study Says Most Crime Not Linked To Mental Illness

Newsy (Apr. 22, 2014) A new study finds most crimes committed by people with mental illness are not caused by symptoms of their illness or disorder. Video provided by Newsy
Powered by NewsLook.com
Hagel Gets Preview of New High-Tech Projects

Hagel Gets Preview of New High-Tech Projects

AP (Apr. 22, 2014) Defense Secretary Chuck Hagel is given hands-on demonstrations Tuesday of some of the newest research from DARPA _ the military's Defense Advanced Research Projects Agency program. (April 22) Video provided by AP
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins