Subacute poisoning with bifenthrin increases the level of interleukin 1ss in mice kidneys and livers

Background Bifenthrin is a pyrethroid. Chronic exposure of humans to the pesticide occurs. Reports about immunotoxicity and proinflammatory effect of pyrethroids were published. The aim of the article was to check if subacute poisoning with bifenthrin affects proinflammatory interleukin 1ss and tumor necrosis factor alpha (TNF alpha) in kidneys, livers and the function of these organs. Methods Thirty two female mice were used. They were divided into 4 groups: controls, mice receiving 1.61 mg/kg bifenthrin for 28 days (group 1), 4.025 mg/kg (2), 8.05 mg/kg (3). On day 29 they were sacrificed, blood, livers and kidneys were obtained. Creatinine concentration and alanine transaminase (ALT) activity were estimated in the blood sera. Interleukin1ss and TNF alpha concentrations in the organs were measured. Result Mean interleukin 1ss concentration in the livers of controls was 53 pg/ml, in group 1- 54 pg/ml, 2- 59 pg/ml, 3- 99 pg/ml (p < 0.05 vs controls). It was accompanied by significant increase in ALT activity in group 3 vs controls (p < 0.05). In the control kidneys interleukin 1ss was 3.9 pg/ml, group 1-6.8 pg/ml, 2-9.8 pg/ml and 3- 11 pg/ml. Statistically significant difference between group 1, 2 and 3 vs controls was found. There was no significant differences among the groups in TNF alpha concentrations neither in the livers nor kidneys. Conclusion Subacute poisoning with bifenthrin significantly increases interleukin 1ss concentration in livers and kidneys in a dose-proportionate level. It is accompanied by ALT activity increase. It confirms nephrotoxic and hepatotoxic and pro-inflammatory effect of bifenthrin in non-target organisms.

Automated summary

The study indicates that subacute poisoning with bifenthrin significantly increases the concentration of interleukin 1ss in the liver and kidney, accompanied by an increase in ALT activity. However, no significant differences in TNFα concentrations were found in the liver and kidney.