Acute effect of cigarette smoking on peak expiratory flow rate and ventilation in resting Nigerian subjects.
The effects of cigarette smoking on peak expiratory flow rate (PEFR) and ventilation (V) in resting Nigerian subjects had been investigated in healthy male subjects (10 smokers, 8 non-smokers). The PEFR, V and tidal volume (VT) decreased significantly after smoking two medium-tar cigarettes. The action of smoke particles (carbon and tar) on the irritant receptor reflex of the lung, thus producing bronchoconstriction, and the depressant action of nicotine on the peripheral chemoreceptors, central chemoreceptors and respiratory centre may be the causal factors.
Adeoshun
I O
IO
Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria.
Abid Ali
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D000328:Adult; D005540:Forced Expiratory Flow Rates; D006801:Humans; D008875:Middle Aged; D009549:Nigeria; D010366:Peak Expiratory Flow Rate; D012119:Respiration; D012146:Rest; D012907:Smoking / Q000009:adverse effects*; D013990:Tidal Volume