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Common Chemical Pollutants Linked to Celiac Disease
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Common Chemical Pollutants Linked to Celiac Disease

Common Chemical Pollutants Linked to Celiac Disease
News

Common Chemical Pollutants Linked to Celiac Disease

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Elevated blood levels of toxic chemicals found in pesticides, nonstick cookware, and fire retardants have been tied to an increased risk for celiac disease in young people, new research shows.

According to NYU Grossman School of Medicine researchers who led the study, people with the immune disorder have severe gut reactions, including diarrhea and bloating, to foods containing gluten, a protein found in wheat, rye, and barley. The only treatment is a gluten-free diet, with no bread, pasta, or cake, says lead investigator and doctoral student Abigail Gaylord, MPH.


Reporting in the journal Environmental Research online May 11, the NYU Langone team found that children and young adults with high blood levels of pesticides—and with high levels of pesticide-related chemicals called dichlorodiphenyldichloroethylenes (DDEs)—were twice as likely to receive a diagnosis of celiac disease as those without high levels.


The study also found that gender differences existed for celiac disease related to toxic exposures. For females, who make up the majority of celiac cases, higher-than-normal pesticide exposure meant they were at least eight times more likely to become gluten intolerant. Young females with elevated levels of nonstick chemicals, known as perfluoroalkyls, or PFAs, including products like Teflon™, were five to nine times more likely to have celiac disease.


Young males, on the other hand, were twice as likely to receive a diagnosis of the disease if they had elevated blood levels of fire-retardant chemicals—polybrominated diphenyl ethers, or PBDEs.


Study co-investigator and health epidemiologist Leonardo Trasande, MD, MPP, the Jim G. Hendrick, MD, Professor in the Department of Pediatrics at NYU Langone, says further studies are needed to demonstrate that these toxic chemicals are a direct cause of celiac disease. But he noted that all are known to disrupt animal and human hormone levels, which are key to controlling both sexual development and immune defenses against infection.


Previous research has suggested that the origins of celiac disease, which affects 1 in 100 adults worldwide, were largely genetic and passed down from parents to offspring. Dr. Trasande, who also serves as director of the Division of Environmental Pediatrics at NYU Langone, and his colleagues wanted to investigate whether a link existed between environmental exposure to toxins and risk for a particular immune disorder directly affected by hormone levels, such as celiac disease.


“Our study establishes the first measurable tie-in between environmental exposure to toxic chemicals and celiac disease,” says senior study investigator and pediatric gastroenterologist Jeremiah Levine, MD. “These results also raise the question of whether there are potential links between these chemicals and other autoimmune bowel diseases, which all warrant close monitoring and further study,” says Dr. Levine, a professor in the Department of Pediatrics and director of the Division of Pediatric Gastroenterology at NYU Langone.


Dr. Trasande says that if further studies show similar connections, such results could serve as evidence that the basis or underlying cause for many of these autoimmune disorders may not just be genetic, but also environmental.


For the study, researchers analyzed levels of toxic chemicals in the blood of 30 children and young adults, ages 3 to 21, who received a new diagnosis of celiac disease at Hassenfeld Children’s Hospital at NYU Langone. Test results were compared with those from 60 other young people of similar age, sex, and race. People with genes HLA-DQ2 and HLA-DQ8 are known to be at greater risk of receiving a celiac disease diagnosis. Other symptoms of celiac disease include diarrhea, fatigue, and anemia.

Reference
Persistent organic pollutant exposure and celiac disease: A pilot study. Abigail Gaylord et al. Environmental Research, 11 May 2020, 109439, https://doi.org/10.1016/j.envres.2020.109439.

This article has been republished from the following materials. Note: material may have been edited for length and content. For further information, please contact the cited source.

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