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Medicineworld.org: Allergies lower risk of glioma

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Allergies lower risk of glioma




The more allergies one has, the lower the risk of developing low- and high-grade glioma, as per data published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

Scientists from the University of Illinois at Chicago, used self-reported data on medically diagnosed allergies and antihistamine use for 419 patents with glioma and 612 cancer-free patients from Duke University and NorthShore University HealthSystem. Controls had no history of brain tumors or any cancers, and did not have a history of neurodegenerative disease.



Allergies lower risk of glioma

"Other studies have observed a connection between allergies and glioma risk," said Bridget McCarthy, Ph.D., a research associate professor of epidemiology at the University of Illinois at Chicago School of Public Health. "In this study we confirmed that allergies are protective and observed that the more allergies one has, the more protected he or she is."

Participants completed a web-based or telephone survey and were asked if they were medically diagnosed with allergies or asthma at least two years previous to the survey, and if so, the age of diagnosis. In addition, they were asked to indicate the number of individual allergies within each of the following groupings: seasonal, pet, medication, food and other.

Included in the survey were details on regular medicine usage two years or more previous to the survey, and information on specific medicine brands, frequency and duration of usage.

Allergies appeared to be protective and provided a reduced risk for those with who have a higher number and more types of allergies, as per the study results. Age of allergy diagnosis and years since diagnosis were not linked to glioma risk. In addition, antihistamine use, including diphenhydramine hydrochloride (a possible neurocarcinogen), did not appear to affect glioma risk separately from the effects of allergies.

"Our study confirms that there is a relationship between the immune system of allergy sufferers and glioma risk," said McCarthy. "A comprehensive study of allergies and antihistamine use with standardized questions and biological markers is essential to further delineate the biological mechanism that appears to be involved in brain tumor development".


Posted by: JoAnn    Source




Did you know?
The more allergies one has, the lower the risk of developing low- and high-grade glioma, as per data published in Cancer Epidemiology, Biomarkers and Prevention, a journal of the American Association for Cancer Research. Scientists from the University of Illinois at Chicago, used self-reported data on medically diagnosed allergies and antihistamine use for 419 patents with glioma and 612 cancer-free patients from Duke University and NorthShore University HealthSystem. Controls had no history of brain tumors or any cancers, and did not have a history of neurodegenerative disease.

Medicineworld.org: Allergies lower risk of glioma

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