Smoking can Damage Fetal Liver Cells

A chemical cocktail produced from cigarette smoke can harm fetal liver health more than individual components.

Chemicals found in cigarette smoke can damage fetal liver cells, finds stem cell study. Scientists say the potent cocktail of chemicals in cigarettes is particularly harmful to developing liver cells and affects male and female foetuses differently.

A research team at the University of Edinburgh have developed a novel way to study the effects of maternal smoking on liver tissue using embryonic stem cells.

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‘Cigarette smoke cantains 7000 harmful chemicals that can damage fetal organs, resulting in long-term complications.’

The stem cell technique will provide important information about the long-term effects of maternal cigarette smoking, say experts.

The liver is vital in clearing toxic substances and plays a major role in regulating metabolism. Smoking cigarettes - which contain around 7000 chemicals - can damage fetal organs and may do lasting harm.

Scientists used pluripotent stem cells - non-specialised cells that have the distinctive ability to be able to transform into other cell types - to build fetal liver tissue.

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Liver cells were exposed to harmful chemicals found in cigarettes, including specific substances known to circulate in fetuses when mothers smoke.

The study showed that a chemical cocktail - similar to that found in cigarettes - harmed fetal liver health more than individual components.

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Findings also showed that cigarette chemicals damage the liver differently in male and female fetuses, with male tissue showing liver scarring and female tissue showing more damage to cell metabolism.

The study was carried out in collaboration with the Universities of Aberdeen and Glasgow and is published in the journal Archives of Toxicology.

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Dr David Hay from the University of Edinburgh's Centre for Regenerative Medicine, said: "Cigarette smoke is known to have damaging effects on the foetus, yet we lack appropriate tools to study this in a very detailed way. This new approach means that we now have sources of renewable tissue that will enable us to understand the cellular effect of cigarettes on the unborn foetus."

Professor Paul Fowler, Director of the Institute of Medical Sciences at the University of Aberdeen, said: "This work is part of an ongoing project to understand how cigarette smoking by pregnant mothers has harmful effects on the developing foetus. These findings shed light on fundamental differences in damage between male and female fetuses."

Source-Eurekalert