Cianidric exposition in swines: a bording of the toxicocinetics parameters using the tiocianato as biomarker
Keywords:Cyanide, Thiocyante, Toxicokinetics, Swine
AbstractThe aim of the present study was to determine the effects of the swine, in different periods of life on the toxicokinetics of cyanide using thiocyante as biomaker. Twenty and two swines, was divided into four groups (60 days of age, 95 days of age, sows with 80 days of gestation and lactating swine), were dosed orally with 3,0 mg/kg/body weigth of potassium cyanide (KCN). Thiocyanate concentrations in blood were measured within 24h. The time of peak concentration (Tmax) and constant of elimination (Kel) were higher in lactating sows (15 hs and 0,045, respectively); on the other hand, the maximum plasma concentration (Cmax) of thiocyanate was observed in pregnant females (161,8). The elimination half life (t1/2) and volume of distribution (Vd) were higher in adult sows (41, 57 and 1,23, respectively). Whereas the clearance and the area under the curve (AUC) of thiocyanate was higher in young animals (354183, 28) the clearance was lower (0,007) in these animals . In coclusion , the results of the present study evidence that the metabolism of cyanide varies greatly considering the physiologic state of female swine being the young animals probably more sensitive to the toxic effects of chronic exposure to low doses of cyanide.
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