Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Early exposure to tobacco smoke causes asthma and allergy

21.07.2008
Babies exposed to cigarette smoke before birth or during the first months afterwards run a greater risk of developing asthma and allergy. This according to a doctoral thesis from the Swedish medical university Karolinska Institutet.

It is a well known fact that babies are harmed by tobacco smoke in numerous ways, but it has always been difficult to separate the effects of the mother smoking during pregnancy and passive smoking after birth. Dr Eva Lannerö’s doctoral thesis now provides new detailed knowledge on how exposure to tobacco smoke early in life influences the risk of developing allergy and asthma respectively.

The thesis, which is based on the so called BAMSE study, shows that smoking during pregnancy increases the chances of the child developing asthma. The study showed that children of mothers who had smoked while pregnant ran double the risk of developing asthma before the age of four. There was also a clear correlation between the number of cigarettes smoked and the risk of developing asthma.

Her thesis also shows that passive smoking in early childhood increases the risk of allergy. Four-year olds who were exposed to tobacco smoke when they were two months old had IgE antibodies (allergy antibodies) against one or more allergens in the blood more often than their coevals from non-smoking homes. The strongest correlation was observed for antibodies against cat allergens, which were twice as common in these children.

“This is particularly worrying as cat allergens are almost everywhere and are hard to avoid,” says Dr Lannerö. “We can’t say how many, but some of these children will definitely develop chronic asthma.”

Dr Lannerö’s studies also show that smoking during pregnancy is least common amongst the higher educated. Of the 4,000 interviewed mothers, 7 per cent of those with university-level education said that they had smoked while pregnant, as opposed to 20 per cent of those who had opted out of tertiary or secondary education. The data applies to mothers of children born between 1994 and 1996.

The BAMSE study is a project in which 4,100 Swedish children born between 1994 and 1996 have been monitored from birth in order that scientists can learn more about the impact of different environmental factors on the development of childhood allergy.

Thesis: 'Parental smoking, wheezing and sensitisation in early childhood', Eva Lannerö Institute of Environmental Medicine (IMM), Karolinska Institutet.

Katarina Sternudd | alfa
Further information:
http://www.ki.se
http://diss.kib.ki.se/2008/978-91-7357-452-5/

More articles from Health and Medicine:

nachricht New flexible, transparent, wearable biopatch, improves cellular observation, drug delivery
12.11.2018 | Purdue University

nachricht Exosomes 'swarm' to protect against bacteria inhaled through the nose
12.11.2018 | Massachusetts Eye and Ear Infirmary

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

Im Focus: Nanorobots propel through the eye

Scientists developed specially coated nanometer-sized vehicles that can be actively moved through dense tissue like the vitreous of the eye. So far, the transport of nano-vehicles has only been demonstrated in model systems or biological fluids, but not in real tissue. The work was published in the journal Science Advances and constitutes one step further towards nanorobots becoming minimally-invasive tools for precisely delivering medicine to where it is needed.

Researchers of the “Micro, Nano and Molecular Systems” Lab at the Max Planck Institute for Intelligent Systems in Stuttgart, together with an international...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

In focus: Peptides, the “little brothers and sisters” of proteins

12.11.2018 | Life Sciences

Materials scientist creates fabric alternative to batteries for wearable devices

12.11.2018 | Materials Sciences

A two-atom quantum duet

12.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>