About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Prenatal Smoking Disrupts Premature Baby’s Sleep Patterns and Brain Development

by Tanya Thomas on December 3, 2008 at 10:54 AM
Font : A-A+

Prenatal Smoking Disrupts Premature Baby’s Sleep Patterns and Brain Development

A premature baby's brain development and sleep patterns can be affected if prenatal exposure to smoking is high, reveals a new study.

According to the results, preterm neonates born to heavy-smoking mothers who smoked more than 10 cigarettes per day lead to disrupted sleep structure and sleep continuity-from 7 p.m. to 8 a.m. they slept almost two hours less than controls who were born to non-smoking mothers, and their sleep was more fragmented.

Advertisement

As compared with controls, neonates born to both heavy and low smokers displayed more body movements and, as a result, more disturbed sleep.

Frederic Telliez, principal investigator, and professor of neuroscience at the University of Picardie Jules Verne in Amiens, France said that sleep integrity is critical in the brain development of neonates.
Advertisement

Also, he said that the disruption of sleep mechanisms by prenatal smoking exposure may predispose neonates to alterations in some physiological function (such as ventilation) and can result in long-term neurocognitive disorders.

The authors said that abnormal sleep processes might alter compensatory responses to autonomic cardiovascular/respiratory challenge and increase the likelihood of life-threatening events later in life.

Prenatal smoking exposure can lead to deficits in sustained attention and impulsivity in adolescence and a higher risk of attention-deficit/hyperactivity disorder in childhood.

Such effects could be partially mediated by sleep changes. Prenatal smoking exposure is also highly related to sudden infant death syndrome (SIDS).

"The developing brain is known for its plasticity and ability to reorganize in response to the stimulation provided by the postnatal environment," said Telliez.

He added: "Consequently, it is possible that these neonates, if they are not exposed to smoking after birth, could recover and develop normal sleep structures."

For the study, the researchers recruited 40 healthy preterm neonates (postconceptional age approximately 33.9 weeks) from the neonatal intensive care unit at Amiens University Medical Center in France.

It was found that the neonates born to heavy-smoking mothers had a significantly lower mean birth weight than controls. Their average weight of 2.92 pounds was 21 percent less than the average weight of controls, which was 3.69 pounds.

Neonates born to mothers who smoked less than 10 cigarettes per day had a birth weight that was 11 percent lower than controls, although this result did not achieve statistical significance.

The study also found that even after 29.7 days without postnatal exposure to smoking or nicotine, and despite the fact that neonates in the heavy-smoking group were nearly 10 days older, infants exposed in utero to high levels of smoking still showed an altered organization of the various behavioral states.

The researchers said that examining the neurodevelopmental trajectories of neonates exposed to maternal smoking (and of those who were not) could lead to greater understanding of potential deficits in the exposed group, better prediction of outcomes, and potentially more effective compensatory clinical interventions.

Researchers also stated that longitudinal studies are necessary to assess the persistence of behavioral state effects caused by prenatal smoking exposure.

The study is published in the latest issue of the journal Sleep.

Source: ANI
TAN/L
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement
News Category
What's New on Medindia
International Day of Persons with Disabilities 2021 - Fighting for Rights in the Post-COVID Era
Effect of Blood Group Type on COVID-19 Risk and Severity
Woman with Rare Spinal Cord Defect from Birth Sues Doctor
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Snoring Health Hazards of Smoking Parkinsons Disease Smoking And Cancer Smoking And Tobacco Sleep Disorder : Restless Legs Syndrome Sleep Disorder: Sleepwalking Parkinsons Disease Surgical Treatment Periodic Limb Movement Disorder REM Behavior Disorder 

Recommended Reading
Pregnancy and Antenatal Care - Healthy Pregnancy - Do’s & Don’ts
Healthy diet with iron and folic acid supplements, exercise and rest are vital for a healthy ......
Sleep Disorder
Sleep disorders can either be having difficulty in getting sleep or dozing off at inappropriate ......
Muscle Relaxant Not Effective in Preventing Premature Birth
Nifedipine, the muscle relaxant generally used to prevent premature birth, is not effective....
Smoking During Pregnancy Raises Birth Defect Risks
Pregnant women who have a smoking habit are more than twice as likely to have children with a cleft ...
Health Hazards of Smoking
Smoking causes many diseases and affects the overall health of smokers....
Parkinsons Disease
Parkinson’s disease is a neurodegenerative disease caused by progressive dopamine brain cells loss. ...
Periodic Limb Movement Disorder
Periodic limb movement disorder (PLMD) is a sleep disorder which causes repetitive cramping or jerki...
REM Behavior Disorder
REM Behavior Disorder (RBD) is a sleep disorder in which the person acts out dramatic or violent dre...
Sleep Disorder : Restless Legs Syndrome
Restless legs syndrome (RLS) causes - An urge to move, usually due to uncomfortable sensations that...
Sleep Disorder: Sleepwalking
Sleepwalking or “Somnambulism,” is a type of parasomnia and has medico-legal implications...
Smoking And Cancer
Smoking is the most important preventable cause of cancer in the world....
Smoking And Tobacco
Encyclopedia section of medindia briefs you about the History of Tobacco...
Snoring
Turbulent airflow causes tissues of the nose and throat to vibrate and the noise produced by these v...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use