Featured Research

from universities, journals, and other organizations

Second-hand smoking affects neurodevelopment in babies

Date:
September 14, 2012
Source:
Plataforma SINC
Summary:
A new study shows that newborns that have been exposed to cigarette smoke from both active and passive-smoking mothers show poor physiological, sensory, motor and attention responses.

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.
Credit: Image courtesy of Plataforma SINC

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

Related Articles


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 pediatric 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 journal Early Human Development 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 about 6% were exposed only to second-hand smoke. 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 cigarette smoke, 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 pediatric factors," as explained 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 fetus 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 fetus 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 fetal development," conclude Canals and Hernández.


Story Source:

The above story is based on materials provided by Plataforma SINC. Note: Materials may be edited for content and length.


Journal Reference:

  1. 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, 2012; 88 (6): 403 DOI: 10.1016/j.earlhumdev.2011.10.004

Cite This Page:

Plataforma SINC. "Second-hand smoking affects neurodevelopment in babies." ScienceDaily. ScienceDaily, 14 September 2012. <www.sciencedaily.com/releases/2012/09/120914080644.htm>.
Plataforma SINC. (2012, September 14). Second-hand smoking affects neurodevelopment in babies. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2012/09/120914080644.htm
Plataforma SINC. "Second-hand smoking affects neurodevelopment in babies." ScienceDaily. www.sciencedaily.com/releases/2012/09/120914080644.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Mind & Brain News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Are Female Bosses More Likely To Be Depressed?

Are Female Bosses More Likely To Be Depressed?

Newsy (Nov. 24, 2014) — A new study links greater authority with increased depressive symptoms among women in the workplace. Video provided by Newsy
Powered by NewsLook.com
Winter Can Cause Depression — Here's How To Combat It

Winter Can Cause Depression — Here's How To Combat It

Newsy (Nov. 23, 2014) — Millions of American suffer from seasonal depression every year. It can lead to adverse health effects, but there are ways to ease symptoms. Video provided by Newsy
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) — Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Milestone Birthdays Can Bring Existential Crisis, Study Says

Milestone Birthdays Can Bring Existential Crisis, Study Says

Newsy (Nov. 21, 2014) — Researchers find that as people approach new decades in their lives they make bigger life decisions. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins