Passed 100 million peopleand more than 30% of adults in the United States suffer from some form of illness, and that number is by getting up. But where does this allergy come from? Do we inherit them, or are they caused by environmental conditions?
The answer involves a bit of both, it said Dr AS Derek Chuan allergy specialist at McMaster University in Ontario. An allergy occurs when the immune system mistakes something harmless, such as the seeds are pollen or a certain type of food, for something harmful and trying to get it out of the body. Once the body reacts in this way to the allergen, it will repeat the allergic response for each new infection, unless there is a successful intervention.
SIGN UP TO COME FOR YOU FOR OURS
Sign up for our weekly Life’s Little Mysteries newsletter to get the latest mysteries before they hit the internet.
To follow Leah Kottyanpathologist at Cincinnati Children’s Hospital, there are several main types of allergies. They include allergic dermatitis, which occurs with skin conditions such as rashes and hives; allergic asthma, which involves airway inflammation and excessive mucus production; allergic rhinitis, which results in sneezing and nasal congestion; and food allergies, which can trigger a systemic immune response. All of these responses can be triggered by the same allergen, Kottyan noted. Additionally, people who have one type of allergic reaction are more likely to have others and are more likely to be allergic to more than one substance.
According to Kottyan, there is almost a genetic component to the development of the disease. Independent lessons when comparing the prevalence of allergies in identical and fraternal twins, it was found that identical twins are more likely to show the same allergy than fraternal twins, indicating that their genes play a role. In another studyIdentical twins had an average of 95% similarity between the four different types of illness, while fraternal twins had an average of about 37%.
However, the relationship between genetics and illness is complex. Genetic mutations can be traced to mutations in hundreds of genes. One of the most studied such genes, known as filaggrin or FLG, affects the development of the skin’s moisture barrier, Kottyan said. Changes in FLG cause the moisture barrier to not function as it should. This increases a person’s risk of developing eczema, allergic dermatitis and other types of allergies.
FLG mutations can put the skin in a loose state, which can increase the skin’s risk of developing sores and cracks and resulting in dry, cracked skin. When this damaged skin comes into contact with an allergen, the immune system may react inappropriately to that allergen, Kottyan said. This can cause allergies.
“Basically, when there’s food on the baby’s skin, the food goes through the damaged skin barrier, and the baby still feels the food through the skin,” Kottyan told Live Science.
Environmental factors
Although allergies play a role in genetics, environmental factors — including exposure to a variety of factors — play a large role in how a person develops an illness.
“It doesn’t follow one,” Chu told Live Science. To a recent study Along with Chu, the scientists investigated non-genetic risk factors for the illness, including the way the baby was delivered, early exposure to antibiotics, and when they were added to solid foods.
Furthermore, even people who have inherited a tendency to develop allergies may not have the same allergies as their parents. Rather, whether a baby develops an allergy to peanuts, for example, is likely to be determined by their early exposure to the substance. There is now an FDA-approved immunotherapy treatment for children based on it daily exposure eating peanut protein for a long time.
“If the immune system is chronically exposed, then it doesn’t learn to tolerate what it’s exposed to, and instead it can end up going bad, leading to complications,” Chu said.
The microbiome also plays a major role in the development of immune responses. Scientists have found that early exposure to a wide range of environmental microbes results in greater vigor and health stomach and skin microbiomes that are more tolerant of potential allergens. Without this difference, or with a microbiome with a high percentage of certain pathogensthere is a possibility of developing conditions such as eczema and food allergies.
The same theory suggests that the elimination of many common viruses, and it is more barren The environment many of us live in now may have contributed to the explosion of allergy cases in the United States. With no germs and less germs and bad bacteria to go after, our immune system can be overwhelming. cells that fight allergies instead of bacteria and viruses.
Researchers like Chu and Kottyan continue to identify risk factors for allergies and test new prevention methods to help children grow into allergy-free adults. For now, Kottyan said, the best steps parents can take to prevent allergies in their children is to expose them to familiar things early and often and take good care of their children’s skin, especially in areas that are prone to dryness and eczema.
“Allergy genes are not specific; they can’t predict whether you’ll develop an illness,” Kottyan told Live Science. “It’s not a life sentence.”
This article is for informational purposes only and is not intended to provide medical or dietary advice.
#disease #genetic