Scientists finally explain the real cause of pregnant women who develop morning disease

• A study conducted by UCLA found that the symptoms of “morning disease”, including nausea, vomiting and assaulting some foods and odors, are linked to the natural and complex response of the body during pregnancy.
• In the early stages of pregnancy, a unique mixture of inflammatory responses is achieved along with behavioral mechanisms that researchers believe is adaptive, such as nausea, achieving an accurate balance, allowing the mother to tolerate and feed the semi -foreign fetus while avoiding potential harmful foods as well.
• The study can have effects in the workplace on pregnant women, which helps to expand the recognition that these symptoms are healthy and natural, which reduces the stigma and paves the way to establish a proper workplace.

Researchers at the University of California, Los Angeles, have revealed a link between the symptoms of “morning disease” and the natural and inflammatory response of the body to biological and physical changes during pregnancy.

According to the National Institutes of Health, up to 80 % of pregnant mothers in the early stage suffers from some nausea, vomiting and ventilation on some foods and odors. Although uncomfortable, these symptoms are not usually a sign that anything wrong with the health of the mother or the developing fetus, but rather an indication of a unique accurate balance for pregnant women.

“During pregnancy, the mother’s immune system faces a difficult challenge: it must protect it and the fetus from infection, but without the fetus being attacking, whose genetic identity is half of the father because it is derived from the father from the Father. Usually the immune system still attacks anything strange, so it must be carefully adapted to keep the fetus safe from the infection.”

Fox is the author opposite the study of “Smells and Sitts: How the olfism and food is related to nausea and immunotherapy in early pregnancy”, recently published in the magazine Development, medicine and general health.

The researchers believe that this accurate balance, which protects the mother and the fetus, is achieved through a unique mixture of inflammatory responses. It works to prevent the mother’s body from rejecting the fetus, along with adaptive behavioral mechanisms, such as nausea, which encourages the mother to avoid foods that are likely to be harmful, especially in the first and second trimesters when the fetus is more at risk.

“Nausea, vomiting, or feeding on foods or odors are not an indication that something is wrong for the mother or the fetus. It is likely that everything is moving normally, and “A reflection of the healthy and useful immune response to the body,” said Daniel Vesler, a professor of anthropology at the University of California, Los Angeles, a reflection of the healthy immune response and useful of the body.

Methodology and results

As for the study, the team led by the University of California in Los Angeles collected blood samples at the University of California, Los Angeles, in collecting and analyzing blood samples to measure the immune system molecules called cytokines. Citokines are proteins that send signals to help the body release a rapid defense against the disease and regulate inflammation. Participants also fill out the questionnaires that were presented to the symptoms related to morning, food and smell during the early stages of pregnancy. Participants were 58 Latin women in southern California, starting from early pregnancy through the postpartum period.

Sixty -four percent of the study participants witnessed the smell of smell or food, primarily for tobacco smoke and meat. Sixty -seven percent mentioned nausea and 66 % of experienced vomiting.

The study team measured cytokines that enhance inflammation (pro -inflammatory) as well as cytokines that suppress inflammation (anti -inflammatory). They found that women who suffered from tobacco smoke showed a remarkable shift towards a more urgent response. The signs of food, nausea and vomiting were also associated with a more supportive immune balance.

Natural selection?

The relationship is compatible with the theory of researchers that these symptoms may be part of the evolutionary adaptation that helps pregnant mothers’ bodies reduce exposure to harmful materials, although the authors of the study warn that the evidence is not specific and that more research is needed.

They emphasized that the study allowed the team to consider both biological and human behaviors during pregnancy.

“In many mammals, the fetus cabin has obstacles separating them from the mother’s blood supply, where their immune cells are. But in humans, we have a unique setting – fetus cells are shower with mother blood. Humans have the most invisible of all placenta, as it wanders in the stomach tissues.

These immune changes may stimulate nausea, which in turn encourages food that may serve as an additional layer of protection, according to researchers.

“Nowadays, you will see stickers on beams of ground beef or soft cheese that warns pregnant women against caution against these products due to the risk of diseases that food transports during pregnancy. It appears that skiing on some smells, foods, nausea and even vomiting is a way to develop in achieving that goal itself,” said Vesler.

Practical effects

Researchers, including the first author Dion Koon, who has just completed the doctorate. In California University of Epidemiology, Los Angeles (is now a post -PhD fellow in Stanford), he said that the study can help enhance the recognition that nausea and vomiting is a natural symptom with biological foundations associated with proper pregnancy. The results of the study can help pave the way for work places in the proper workplace, such as the most efficient publishing of health care benefits and other useful resources to reduce the stigma, excessive absence and the lost productivity.

They also encourage other researchers to continue to consider the questions raised by the study, not only exploring evolutionary questions, but to work to provide doctors with non -invasive measures for formations.

Funding for this study was provided by the National Institute of Health.