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Children on dairy farms run one-tenth the risk of developing allergies; Dairy farm exposure also beneficial during pregnancy

Date:
July 9, 2014
Source:
University of Gothenburg
Summary:
Children who live on farms that produce milk run one-tenth the risk of developing allergies as other rural children. According to researchers, pregnant women may benefit from spending time on dairy farms to promote maturation of the fetal and neonatal immune system.

Children who live on farms that produce milk run one-tenth the risk of developing allergies as other rural children.
Credit: © Ror / Fotolia

Children who live on farms that produce milk run one-tenth the risk of developing allergies as other rural children. According to researchers at The University of Gothenburg in Sweden, pregnant women may benefit from spending time on dairy farms to promote maturation of the fetal and neonatal immune system.

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The occurrence of allergic diseases has risen dramatically in Western societies. One frequently cited reason is that children are less exposed to microorganisms and have fewer infections than previous generations, thereby delaying maturation of the immune system.

A study by researchers at Sahlgrenska Academy, University of Gothenburg, monitored children until the age of three to examine maturation of the immune system in relation to allergic disease. All of the children lived in rural areas of the Vδstra Gφtaland Region, half of them on farms that produced milk.

Lower risk of allergy

The study found that children on dairy farms ran a much lower risk of developing allergies than the other children.

"Our study also demonstrated for the first time that delayed maturation of the immune system, specifically B-cells, is a risk factor for development of allergies," says Anna-Carin Lundell, one of the researchers.

Need for additional studies

Children with an allergic disease at the age of 18 and 36 months had a higher percentage of immature B-cells in their blood circulation at birth and during the first month of life. Additional studies are needed to corroborate the correlation between delayed B-cell maturation during the neonatal period and the risk for subsequent development of allergies.

The Gothenburg researchers will start off by examining children as they turn eight.

"We need to identify the specific factors on dairy farms that strengthen protection against allergies and appear to promote maturation of the immune system as early as the fetal stage," Ms. Lundell says.


Story Source:

The above story is based on materials provided by University of Gothenburg. The original article was written by Krister Svahn. Note: Materials may be edited for content and length.


Journal Reference:

  1. A.-C. Lundell, S. Johansen, I. Adlerberth, A. E. Wold, B. Hesselmar, A. Rudin. High Proportion of CD5 B Cells in Infants Predicts Development of Allergic Disease. The Journal of Immunology, 2014; 193 (2): 510 DOI: 10.4049/%u200Bjimmunol.1302990

Cite This Page:

University of Gothenburg. "Children on dairy farms run one-tenth the risk of developing allergies; Dairy farm exposure also beneficial during pregnancy." ScienceDaily. ScienceDaily, 9 July 2014. <www.sciencedaily.com/releases/2014/07/140709095620.htm>.
University of Gothenburg. (2014, July 9). Children on dairy farms run one-tenth the risk of developing allergies; Dairy farm exposure also beneficial during pregnancy. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/2014/07/140709095620.htm
University of Gothenburg. "Children on dairy farms run one-tenth the risk of developing allergies; Dairy farm exposure also beneficial during pregnancy." ScienceDaily. www.sciencedaily.com/releases/2014/07/140709095620.htm (accessed November 24, 2014).

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