Hygiene Hypothesis News and Research

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The hygiene hypothesis is also sometimes referred to as the biome depletion theory, or the “old friends” theory, is a hypothesis that states that the cause of allergic disease may be immune intolerance resulting from inadequate exposure to parasites and microbes in childhood.

Mouse study shows flu virus infection may protect against asthma

In a paper that suggests a new strategy to prevent asthma, scientists at Children's Hospital Boston and their colleagues report that the influenza virus infection in young mice protected the mice as adults against the development of allergic asthma.

14 Dec 2010

Overexposure to triclosan may negatively influence immune system: Study

Young people who are overexposed to antibacterial soaps containing triclosan may suffer more allergies, and exposure to higher levels of Bisphenol A among adults may negatively influence the immune system, a new University of Michigan School of Public Health study suggests.

29 Nov 2010

North American children may be 'too clean'

Rising levels of allergic asthma and eczema in North American children have Canadian scientists wondering if there is such a thing as being "too clean." "We see auto-immune diseases like asthma and eczema increasing rapidly in North American children, but we don't see the same effect in children in the developing world," says Dr. B. Brett Finlay, a Professor in the Michael Smith Laboratories at the University of British Columbia.

29 Oct 2010

Place of birth, low SES and exposure to pests associated with asthma in U.S.-born children

Researchers from Tufts University pooled data from five previous epidemiological studies to investigate the prevalence of asthma in children in the Boston neighborhoods of Chinatown and Dorchester. Among children born in the United States, low socioeconomic status (SES) and exposure to pests (mice and cockroaches) were both associated with having asthma. Neither association was present in children born outside of the United States. The study was published online in advance of print in the Journal of Immigrant and Minority Health.

26 Oct 2010

Survey shows alarming increase of peanut allergies in children

Results of a nationwide telephone survey have shown that the rate of peanut allergies in children more than tripled from 1997 to 2008. The data are reported in the May 12 issue of the Journal of Allergy and Clinical Immunology.

13 May 2010

AARDA report examining current state of AD released at the National Autoimmune Diseases Summit

A groundbreaking new report from the American Autoimmune Related Diseases Association, examining the current state of autoimmune disease (AD) and its economic and social impact globally and in the U.S., was released today at the National Autoimmune Diseases Summit: The Global State of Autoimmunity Today, held to kick-off National Autoimmune Disease Awareness Month.

4 Mar 2010

Prenatal exposure to microbes may help protect child from developing allergies later in life

A pregnant woman's exposure to microbes may protect her child from developing allergies later in life. Researchers in Marburg, Germany find that exposure to environmental bacteria triggers a mild inflammatory response in pregnant mice that renders their offspring resistant to allergies.

8 Dec 2009

Bacteria help in preventing inflammation after skin injury

On the skin's surface, bacteria are abundant, diverse and constant, but inflammation is undesirable. Research at the University of California, San Diego School of Medicine now shows that the normal bacteria living on the skin surface trigger a pathway that prevents excessive inflammation after injury.

22 Nov 2009

Preventing food allergies in children - a change of strategy?

According to the Centers for Disease Control and Prevention (CDC) in the United States in 2007 around 3 million children under 18 had food allergies - a rise of 18% since 1997.

17 Dec 2008

Latest research on diagnosis and treatment of allergic diseases

Researchers are presenting more than 450 abstracts on investigational findings in the diagnosis and treatment of allergic diseases at the ACAAI Annual Meeting in Seattle, Nov. 6-11. Following are highlights of some key studies on asthma.

11 Nov 2008

Food allergies are on the rise but effective treatment in the pipeline

Experts in the U.S. say food allergies are on the rise and although strict avoidance is currently the only treatment, new effective therapies are currently being developed.

10 Nov 2008

Exposure to bacteria might prevent type I diabetes

Researchers from Yale University and the University of Chicago have found a startling illustration of the potential for microbes to prevent disease - they found that mice exposed to common stomach bacteria were protected against the development of type I diabetes.

22 Sep 2008