Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Passive smoking also affects neurodevelopment in babies

17.09.2012
A new study shows that newborns that have been exposed to nicotine from both active and passive smoking mothers show poor physiological, sensory, motor and attention responses.

Smoking during pregnancy has been linked to many different problems in infants like learning difficulties, attention deficit disorder with hyperactivity and even obesity.

However, although the paediatric and obstetric disorders linked to tobacco during this stage are well defined, the effects on neonatal behaviour have not yet been studied in depth.

A new study headed by experts at the Behaviour Evaluation and Measurement Research Centre (CRAMC) of the Rovira i Virgili University and published in the 'Early Human Development' journal goes further and analyses the effects of passive smoking during pregnancy on the newborn.

The scientists evaluated the behaviour of 282 healthy newborns using the Neonatal Behavioural Evaluation Scale. This allows for interaction with the newborn in order to evaluate its behaviour and responses between 48 and 72 hours after birth.

From those mothers studied, 22% smoked during pregnancy and hardly 6% were exposed to passive smoking. Out of the smoking mothers, 12.4% had between 1 and 5 cigarettes a day; 6.7% had between 6 and 10 a day; and 2.8% had between 10 and 15 a day. None of them smoked more than 15 cigarettes a day.

"Newborns who have had intrauterine exposure to nicotine, whether in an active or passive way, show signs of being more affected in terms of their neurobehavioural development.

This could be an indicator of pathologies, independently of sociodemographic, obstetric and paediatric factors," as explained to SINC by Josefa Canals and Carmen Hernández, the lead authors of the study.

The results reveal that those born to smoking and passive smoking mothers score low in their ability to inhibit stimuli that could alter the central nervous system.

Furthermore, children of passive smoking mothers have poor motor development and those of smoking mothers have less ability to regulate behaviour and response in physiological, sensor, motor and attention terms.

"Health professionals should encourage future mothers and their families to eliminate or reduce tobacco consumption," states Canals, who outlines the importance of informing mothers on the effects of involuntary exposure to cigarette smoke in order to prevent direct damage to the foetus and infant development.

Smoking during pregnancy

Smoking during pregnancy is one of the biggest yet changeable causes of illness and death for both mother and infant. Nonetheless, epidemiological studies show that between 11% and 30% of pregnant women smoke or are passively exposed to tobacco smoke.

When a pregnant woman smokes, nicotine concentrations in the foetus reach more than 15% of that of the mother. In Spain, 43.5% of women between 25 and 44 years of age smoke but this percentage during pregnancy falls to approximately 26.6%.

"However, although women tend to reduce their normal tobacco consumption when falling pregnant, the key is to study the effects of exposure to small amounts of smoke on foetal development," conclude Canals and Hernández.

Reference:

Carmen Hernández-Martínez, Victoria Arija Val, Joaquín Escribano Subías, Josefa Canals Sans. "A longitudinal study on the effects of maternal smoking and secondhand smoke exposure during pregnancy on neonatal neurobehavior". Early Human Development 88:403, junio de 2012.

Contact:
Josefa Canals Sans
Centro de Investigación de Evaluación y Medida de la Conducta (CRAMC)
Universidad Rovira i Virgili
Tel.: +34 977 257 894
E-mail: josefa.canals@urv.cat

SINC | EurekAlert!
Further information:
http://www.fecyt.es

More articles from Health and Medicine:

nachricht Satellites, airport visibility readings shed light on troops' exposure to air pollution
09.12.2016 | Veterans Affairs Research Communications

nachricht Oxygen can wake up dormant bacteria for antibiotic attacks
08.12.2016 | Penn State

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: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>