Tuesday , January 19 2021

Sucking a parental nipple can reduce the risk of allergies in children.

SEATTLE – Some moms or dads did not think about “cleaning” their baby’s nipples when they fell on the floor, putting them in their mouths, while others would be terrified of this idea. According to researchers, expelled parents may not be able to protect their child from developing allergies later in childhood.

Sucking parental nipples was associated with lower levels of common IgE in early life, suggesting increased protection against allergies and allergic asthma, said Edward Zoratti, MD, from Henry Ford's health care system in Detroit and colleagues at the American College of Allergy , Asthma, Annual Scientific Meeting on Immunology (ACAAI).

Researchers interviewed more than 100 mothers of babies several times over 18 months and asked how they clean their baby's nipple. Of the 74 mothers surveyed who reported that their children used pacifiers, only 12% reported sucking a pacifier.

"We found that sucking the parental nipple was associated with suppressed IgE levels starting after about 10 months and lasted after 18 months," Zoratti said. “Further research is needed, but we believe that the effect may be associated with the transfer of healthy microbes from the oral cavity. It is unclear whether the lower production of IgE continues among these children in subsequent years. ”

Co-author Elaine Abu-Yaude, MD, also Henry Ford, said that it is known that exposure to certain microorganisms at an early stage of life stimulates the development of the immune system and can subsequently protect against allergic diseases.

A small study is not the first to offer a link between sucking the nipple and protecting against allergies and asthma. A study in Sweden in 2013 also showed lower IgE antibodies against common allergens in infants when parents participated in this practice. Babies nipple-sucking parents in this study also had less eczema at the age of 18 months.

“Sucking nipples for parents can be an example of how parents can transfer healthy microorganisms to their young children,” she said. "Our study shows a connection between parents who suck their baby's papilla and children with lower levels of IgE, but does not necessarily mean that sucking the nipples causes lower IgE."

ACAAI spokeswoman Neta Ogden, MD, described the results as “preliminary but intriguing.” This certainly provides some support for the “hygiene hypothesis” – the idea that young children exposed to a greater variety of microbes are less likely to develop allergies after life, ”she said. MedPage today,

“But of course the cohort [of pacifier sucking parents] was very small, ”she noted.

Of the 128 mothers who completed the interview after 6 months, 74 (58%) reported on the current use of the nipple. Of these 74, 30 (41%) reported cleaning the nipples with sterilization, 53 (72%) reported washing the nipples for handwashing, and 9 (12%) reported sucking the parental nipples.

Sterilization of the foot and handwash were not associated with the total serum IgE trajectory. Considerable temporal interaction was found for nipple sucking (P= 0.079), which indicates that the shape of the trajectory differs between the nipple nipple children and the pacifier sucking parents.

The researchers noted that sucking the nipple of the parent seemed to suppress serum IgE levels starting about 10 months (P= 0.048) and continued to diverge after 18 months (P= 0.014).

They concluded that further research is needed to determine whether these differences are related to the transfer of parental oral microbes, and if the risk of developing allergic diseases later in life persists.

Ogden said that it is too early to recommend sucking the parental nipple, but she will not prevent parents from doing so if the parents are healthy.

“I will not necessarily tell them not to do it, if they did it, or if they want to try, if, of course, they don’t get sick,” she said. “I think there might be something. But we really need to do more research before we can handle it. ”

2018-11-17T16: 30: 00-0500

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