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Sci 330, 473490 (1979)

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Importantly, the CYP1A2 enzyme is thought to be altered by hydrocarbons in cigarette smoke, rather than nicotine content, which can be delivered by both tobacco and electronic cigarettes [59]

Tobacco smoke contains a mixture of chemicals, including a host of reactive oxygen- and nitrogen species (ROS and RNS), among others, that can damage cellular and sub-cellular targets, such as lipids, proteins, and nucleic acids

The factors that have been associated with weight gain after smoking cessation include male gender, a higher level of nicotine dependence, and advanced age

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