title: [Effects of nicotine and cigarette smoke extracts on plasma level of complement C3a and C5a, thromboxane B2 and 6-keto PGF1 alpha in rabbits].
abstract: 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 increased 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.
authors.forename: Y
authors.initials: Y
authors.lastname: Kihira
authors.forename: J
authors.initials: J
authors.lastname: Kobayashi
authors.forename: S
authors.initials: S
authors.lastname: Kitamura
mesh_terms: D015121:6-Ketoprostaglandin F1 alpha / Q000097:blood*; D000818:Animals; D015926:Complement C3a / Q000378:metabolism*; D015936:Complement C5a / Q000378:metabolism*; D007275:Injections, Intravenous; D008168:Lung / Q000378:metabolism; D009538:Nicotine / Q000008:administration & dosage / Q000009:adverse effects*; D011817:Rabbits; D011863:Radioimmunoassay; D012907:Smoking / Q000009:adverse effects* / Q000097:blood; D013929:Thromboxane B2 / Q000097:blood*
chemical_list: D013929:Thromboxane B2; D015121:6-Ketoprostaglandin F1 alpha; D009538:Nicotine; D015926:Complement C3a; D015936:Complement C5a