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.
Biofilm discovery suggests new way to prevent dangerous infections
23.05.2017 | University of Texas at Austin
Another reason to exercise: Burning bone fat -- a key to better bone health
19.05.2017 | University of North Carolina Health Care
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy