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WASHINGTON (Reuters) – An increase in the concentration of vitamin D in the blood protects children from the symptoms of asthma-related asthma, especially in obese children, according to a recent US study.
The study was conducted by researchers from the Johns Hopkins University School of Medicine and published its findings in the latest issue of the Journal of Clinical Allergy and Clinical Immunology.
To achieve the results of the study, the researchers studied three factors: levels of air pollution in households, vitamin D levels in the blood and asthma symptoms in 120 asthmatic children in Baltimore, United States.
One-third of the study participants were obese. An assessment of the children was conducted early in the study and they continued their assessment three times over the next nine months.
The researchers found that low levels of vitamin D in the blood were associated with the adverse effects on breathing of air pollution in obese children with asthma.
In contrast, homes with higher levels of air pollution were associated with higher levels of vitamin D in the blood and decreased asthma symptoms in participating children.
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