In a new study reported in the American Journal of Epidemiology researchers concluded that children living in damp, water damaged houses may be more likely to develop nasal allergies than other children. In the study that followed children over time 16 percent of the children whose parents reported dampness in the home received a diagnosis of allergic rhinitis over the next six years compared to just under 12 percent for children whose parents reported no dampness problems defined as no visible signs of water damage to the ceilings, walls or floors, and no visible mold or mold odor in the home. Factors such as social class and second hand smoke were also considered but the dampness remained linked to the risk of allergic rhinitis. In addition, children whose parents reported mold or water damage in the home at the beginning of the study were 55 percent more likely than other children to develop allergic rhinitis connected to any allergin and not just mold. The researchers concluded that parents should look out for water damage and repair as soon as it occurs.
Posts Tagged ‘mold’
Damp Houses May Increase Risk of Nasal Allergies
Wednesday, August 18th, 2010Asthma Attacks and Mold in Your Home
Wednesday, July 7th, 2010A recent study online that will be published in the American Journal of Respiratory and Critical Care Medicine reported that an increased risk of asthma attacks may occur among people with the chitinase gene variants when exposed to high levels of fungus. The researchers found that an ” interaction between environmental mold exposure and certain variants of chitinase genes were positively associated with severe asthma exacerbations requiring hospitalization.” Data from children enrolled in the Childhood Asthma Management program between the ages of 5 and 12 with mild to moderate persistent asthma were used. Mold was measured in the subjects homes at the beginning of the study and classified as having more or less than 25,000 mold colonies per gram of household dust. Blood samples were used to determine chitinase genes and a chitinase-like gene within the study population. Finally the researchers compared different variants of chitinase genes in the population with levels of mold exposure and number of hospital visits for severe asthma exacerbations. Findings showed that certain variants of the chitinase gene CHITI in conjunction with high mold exposure were associated with higher risks of severe asthma attacks. Further studies to replicate and expand these findings is planned.





