WEEKLY UPDATE: July 23, 2019
SUMMARY: The same genetic variants are associated with hay fever and asthma.
DESCRIPTION: Asthma is a condition in which your airways produce extra mucus and constrict, making it difficult to breathe. Hay fever is also known as seasonal allergies. Common symptoms include watery eyes, sneezing, and a runny nose. Previous studies have determined that asthma is often associated with hay fever. Therefore, this study attempted to find genetic variants that are associated with both diseases by performing a meta-analysis of these previous studies. 6,685 people diagnosed with asthma and hay fever were compared with 14,091 people who had neither disease. The study found that genetic variants associated with asthma and hay fever are also linked to eczema and multiple autoimmune diseases.
DID YOU KNOW? According to numerous studies, exposure to antigens (a substance that induces an immune response) during childhood decreases the risk of developing allergies later in life. [SOURCE]