title: Influence of tobacco on the labelling of red blood cells and plasma proteins with technetium-99m.
abstract: Technetium-99m-labelled red blood cells (RBC) have been used as radiopharmaceutical in nuclear medicine. The influence of drug interaction in this labelling process has been described along with the biological effects of tobacco on the labelling of blood elements with technetium-99m. The labelling of RBC and plasma proteins can be decreased in presence of tobacco. This can be due to either a direct or indirect effect (reactive oxygen species) of tobacco by (i) oxidation of the stannous ion, (ii) possible damages caused in plasma membrane and/or (iii) possible chelating action on the stannous and/or pertechnetate ions.
authors.affiliation: Dept. de Biofísica e Biometria, Universidade do Estado do Rio de Janeiro, Brasil.
authors.forename: M V
authors.initials: MV
authors.lastname: Vidal
authors.forename: B
authors.initials: B
authors.lastname: Gutfilen
authors.forename: L M
authors.initials: LM
authors.lastname: da Fonseca
authors.forename: M
authors.initials: M
authors.lastname: Bernardo-Filho
mesh_terms: D000818:Animals; D001798:Blood Proteins / Q000737:chemistry / Q000187:drug effects*; D003864:Depression, Chemical; D004912:Erythrocytes / Q000737:chemistry / Q000187:drug effects* / Q000648:ultrastructure; D007553:Isotope Labeling; D010936:Plant Extracts / Q000494:pharmacology*; D010947:Plants, Toxic; D051381:Rats; D017208:Rats, Wistar; D017382:Reactive Oxygen Species; D013667:Technetium / Q000737:chemistry*; D014001:Tin / Q000494:pharmacology; D014026:Nicotiana
chemical_list: D001798:Blood Proteins; D010936:Plant Extracts; D017382:Reactive Oxygen Species; D013667:Technetium; D014001:Tin