Cigarette smoke exposure ‘ups sudden infant death syndrome risk’April 22nd, 2009 - 3:14 pm ICT by ANI
Sydney, Apr 22 (ANI): Exposure to cigarette smoke induces abnormalities in babies’ brains, thus putting them at increased risk of sudden infant death syndrome, say Australian researchers.
To reach the conclusion, researchers from University of Sydney analysed the brain tissue of babies who had undergone an autopsy at Sydney’s Glebe morgue.
After analysing, they found exposure to any second-hand smoke could precipitate these brain cell changes, and not just exposure in utero by maternal smoking.
Rita Machaalani, a scientist at the university’s Bosch Institute, and her colleague Karen Waters showed there was an increase in cell death in a region of the brain that plays a major role in the control of breathing and heart function in babies who died of SIDS, compared to those who died of other causes.
The post-mortems of 67 SIDS infants and 25 infants who died suddenly with another diagnosis between 1997 and 2002 were correlated with risk factors associated with SIDS, such as tummy sleeping, sharing a bed with adults and exposure to smoking, obtained during police interviews with the babies’ parents and hospital records.
Of the 67 SIDS infants, 81 per cent had been exposed to cigarette smoke, compared to 58 per cent of non-SIDS infants, and 32 per cent were in bed with a parent when they died.
“No one in the world has access to such a large dataset of brain tissue or the ability to correlate the tissue with the autopsy results and a record of the risk factors and this is what makes our data really important,” The Sydney Morning Herald quoted Machaalani, as saying.
The research has been published in the journals Brain and Acta Neuropathologica.
It found the increase in cell death (apoptosis) was higher not only in SIDS victims, but in all infants who had a history of tobacco smoke exposure, in utero and the postnatal period. (ANI)
- Mom's smoking during pregnancy ups SIDS risk - Nov 10, 2010
- Why smoking in pregnancy ups baby's sudden death risk - Nov 11, 2010
- Low levels of serotonin linked to sudden infant death syndrome - Feb 03, 2010
- Sudden infant deaths linked to low serotonin levels - Feb 03, 2010
- Puffing could expose your kid to leukaemia - Feb 10, 2012
- Cigarette smoking ups production of mucus in patients with bronchitis - Feb 18, 2011
- 'Surgeon General' Voices That Just One Cigarette Can Harm The Body By Engendering Deadly Ailments - Dec 10, 2010
- US study finds smoking, ADHD link - Oct 08, 2010
- Smoking mum's babies 'at increased Sudden Infant Death Syndrome risk' - Apr 04, 2009
- Smoking 'influences gene function' - Jul 14, 2010
- SIDS deaths soar by 33 percent on New Year's Day: Study - Dec 16, 2010
- Half of cot deaths 'happen while co-sleeping' - Oct 14, 2009
- 'Cot deaths' linked to poor control of breathing and swallowing - Apr 01, 2011
- Sleeping with parents 'ups risk of sudden death' in babies - Sep 30, 2010
- Beware! Smoking can upset your genes - Jul 14, 2010
Tags: acta neuropathologica, australian researchers, autopsy results, brain cell, brain tissue, cell changes, cigarette smoke, heart function, history of tobacco, infant death syndrome, karen waters, police interviews, postnatal period, second hand smoke, sids victims, sudden infant death, sudden infant death syndrome, sydney morning herald, tobacco smoke exposure, university of sydney