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Rare form of autism investigated by gene study

A new study is helping scientists better understand the link between the mutation of a gene called MEF2C and a rare form of autism called MEF2C haploinsufficiency syndrome. According to an article in the journal Neurogenetics, MEF2C haploinsufficiency syndrome is “associated with intellectual disability, autistic features, epilepsy, and abnormal movements.” Although scientists know that a deficiency in the MEF2C genes is responsible for MEF2C haploinsufficiency syndrome, they do not yet know exactly how the genes regulate brain development. Dr. Cowan notes that the value of the recent research is in the way it draws attention to the need to understand the interconnecting effects of brain cells. “For the field,” he says, “I think it’s important because it’s starting to help us appreciate that neurodevelopmental [conditions] are probably a convergence of dysfunction or altered development of multiple different cell types. This has treatment implications as well, because you can’t just target the neuronal population. You can’t just target microglia. You’re probably going to have to think about the cluster of different cooperating cell types in the brain that lead to a typically functioning brain,” he adds. The research has also benefited from the input of families across the world. The internet allows families to connect with other families who have children with the syndrome, which has helped make evident some aspects of it that were previously unclear. (Credits: www.medicalnewstoday.com)

Grass allergy

People may also refer to a grass allergy as seasonal allergic rhinitis or hay fever. Hay fever occurs when a person’s immune system mistakes a normally harmless airborne substance, such as grass pollen, as a threat. In response, the body releases chemicals, including histamine, which triggers allergy symptoms. The Asthma and Allergy Foundation of America (AAFA) state that only a few types of grass can cause allergy symptoms. They also note that depending on where a person lives, various grasses may be responsible for the symptoms, which they can trigger at different times of the year. Grass pollen allergies are one of the most common allergies in the U.S., according to the American Academy of Otolaryngology — Head and Neck Surgery Foundation (AAO-HNS). The AAO-HNS recommend avoiding the allergens as much as possible. Grass allergy symptoms are often less obvious on rainy, cloudy days or when there is little to no wind. Conversely, hot, dry, and windy weather spreads pollen around more, which can increase a person’s allergy symptoms. Usually, grass allergies are very manageable, with numerous treatment options available. A grass allergy should not affect a person’s quality of life. (Credits: www.medicalnewstoday.com)