Abstract:In both the rat kidney and lung, inhalation of cigarette smoke diluted with air (1/15) for a limited period of time (15 min) specifically induces aryl hydrocarbon hydroxylase (AHH)2 in less than 4 h. Up to four successive inhalations administered at 2-h intervals activities. The maximal effect corresponds to about 10 times the control value. Compared to the kidney enzyme, the lung AHH activity is about three or four time more sensitive to small concentrations of cigarette smoke. The biological half-life of the… Show more
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