Tuesday April 23, 2019

Exposure to Pollen During Pregnancy May up The Risk of Asthma in Kids

For the study, the team analysed cord blood collected from hundreds of babies born in Melbourne, Denmark and Germany

0
//
Pregnant women
There’s a lot of reticence to include pregnant women in research. Pixabay

Babies born to mothers who got exposed to pollen during the last trimester may be at increased risk of developing respiratory diseases such as asthma, says a study.

The findings showed that those born during the peak grass pollen season had high immunoglobulin E (IgE) levels in umbilical cord blood — a marker used to predict the development of allergic diseases.

“We know that outdoor pollen exposure during the first couple of months after birth can lead to allergic respiratory diseases and we suspected that exposure during the later stages of pregnancy may also be important,” said lead researcher Bircan Erbas, Associate Professor from La Trobe University in Melbourne, Australia.

“Many studies have shown that babies with high levels of IgE in cord blood can go on to develop allergies later in childhood, but little is known about how these levels are affected by exposure to pollen in utero.”

However, the study published in Environment International, also showed that being pregnant for an entire grass pollen season may have a protective effect on babies.

asthama-in-kids
Asthma in kids. (IANS)

“We found these babies had lower IgE levels. This was a significant finding and indicates the possible development of a sensitisation barrier,” Erbas said.

Erbas stressed that the study did not suggest that all babies born during high pollen seasons would develop respiratory disease or other allergies.

“The study provides new insight that could help us predict and manage diseases like asthma – which are a significant public health burden.

Also Read- Breezy Silhouettes For Every Sartorial Occasion

“However, it’s important to remember there are a number of factors that can determine who gets asthma or allergies. This is one piece of the puzzle,” she explained

For the study, the team analysed cord blood collected from hundreds of babies born in Melbourne, Denmark and Germany. (IANS)

Next Story

Avoid Smoking During Pregnancy To Prevent Premature Births

The negative health impacts of cigarette smoking during pregnancy, including low birth weight, delayed intrauterine development, pre-term birth, infant mortality, and long-term developmental delays, are well known. 

0
smoking
The researcher plans to look at quit rates and smoking intensity and their impact on the risk of infant mortality. Pixabay

Expecting mothers, take note. As smoking during pregnancy is linked with negative health outcomes, a team of researchers has found that smoking cessation during pregnancy may reduce the risk of pre-term birth.

The findings, published in the JAMA Network Open journal, showed that the probability of pre-term birth decreased with earlier smoking cessation in pregnancy — up to a 20 per cent relative decrease if cessation occurred at the beginning of pregnancy.

baby
If we determine quitting, and quitting early, reduces the risk of infant mortality, then that may speak to mothers even more saliently about the importance of smoking cessation. Pixabay

“Of concern, though, given the substantial benefits of smoking cessation during pregnancy is that the proportion of pre-pregnancy smokers who quit smoking during pregnancy has remained essentially stagnant since 2011,” said lead author Samir Soneji from The Dartmouth Institute for Health Policy and Clinical Practice in the US.

For the study, the researchers conducted a cross-sectional study of more than 25 million pregnant women who gave birth to live neonates during a six-year period — measuring their smoking frequency three months prior to pregnancy and for each trimester during pregnancy.

The negative health impacts of cigarette smoking during pregnancy, including low birth weight, delayed intrauterine development, pre-term birth, infant mortality, and long-term developmental delays, are well known.

But the good news is that the proportion of women who start their pregnancy as smokers has been declining in recent years, the researchers said.

smoking

The findings, published in the JAMA Network Open journal, showed that the probability of pre-term birth decreased with earlier smoking cessation in pregnancy — up to a 20 per cent relative decrease if cessation occurred at the beginning of pregnancy. Pixabay

However, the study also found that only about 25 per cent of women who smoked prior to pregnancy were able to quit throughout their pregnancy, and approximately 50 per cent of women who smoked during their pregnancy did so with high frequency (more than 10 cigarettes per day).

The researcher plans to look at quit rates and smoking intensity and their impact on the risk of infant mortality.

Also Read: How Netflix Binge-Watching Can Lead You The “Mean World Syndrome”

“Thankfully most premature babies end up doing well,” he said.

“But premature birth is strongly linked to infant mortality. If we determine quitting, and quitting early, reduces the risk of infant mortality, then that may speak to mothers even more saliently about the importance of smoking cessation,” he added. (IANS)