title: Combined effect of cigarette smoking and sulfur dioxide on heart rate variability.
abstract: Cigarette smoking (CS) and air pollution can both alter autonomic cardiac function, yet little has been reported on their combined effect on cardiovascular dysfunction. Therefore, we assessed the potential effect of smoking on the association between sulfur dioxide (SO(2)) and heart rate variability (HRV) in community residents. We found evidence that SO(2) induced short but dramatic decreases in HRV indices, the standard deviation of the NN interval (SDNN), low frequency (LF), and high frequency (HF), in smokers compared with non-smokers. We suggest that CS influences the decrease in HRV directly caused by SO(2), and the effect in susceptible groups may be more serious.
authors.forename: Jin-Young
authors.initials: JY
authors.lastname: Min
authors.forename: Kyoung-Bok
authors.initials: KB
authors.lastname: Min
authors.forename: Sung-Il
authors.initials: SI
authors.lastname: Cho
authors.forename: Domyung
authors.initials: D
authors.lastname: Paek
mesh_terms: D000393:Air Pollutants / Q000633:toxicity*; D004562:Electrocardiography; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D007723:Korea; D012907:Smoking / Q000009:adverse effects*; D013458:Sulfur Dioxide / Q000633:toxicity*
chemical_list: D000393:Air Pollutants; D013458:Sulfur Dioxide