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Effects of nicotine and cigarette smoke extracts on plasma level of complement c3a and c54a thromboxane b 2 and 6 keto pgf 1 alpha in rabbits


, : Effects of nicotine and cigarette smoke extracts on plasma level of complement c3a and c54a thromboxane b 2 and 6 keto pgf 1 alpha in rabbits. Japanese Journal of Thoracic Diseases 27(12): 1495-1501

In the present investigation we measured plasma levels of complement C3a and C5a, thromboxane B2 (TxB2) and 6-keto PGF1.alpha. in anesthetized rabbits by radioimmunoassay after the intravenous injection of nicotine and cigarette smoke extracts. Plasma levels of complement C3a in rabbits showed a significant increase and reached a maximum value 60 minutes after the intravenous injection of nicotine and cigarette smoke extract. Plasma levels of complement C5a in rabbits showed a significant increase and reached a maximum value 30 minutes after the intravenous injection of nicotine. Plasma levels of complement C5a in rabbits showed a significant increase and reached a maximum value 60 minutes after the intravenous injection of cigarette smoke extract. Plasma levels of TxB2 in rabbits showed a significant increase after the intravenous injection of nicotine and cigarette smoke extract. Plasma levels of 6-keto PGF1.alpha. in rabbits did not show any change after the intravenous injection of nicotine and cigarette smoke extracts. The above results may suggest that the intravenous injection of nicotine and cigarette smoke extracts induces an increase of plasma levels of complement C3a and C5a and TxB2 in anesthetized rabbits.

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