title: [The immunological effects of phthalanilic acid on mice].
abstract: OBJECTIVE
  To explore the effects of phthalanilic acid on immune system in mice from the respects of blood, tissues, cell and cytokines. And to find sensitive index of immunological effects and offer experimental data for toxicological safety evaluation.
  
  
  METHODS
  60 balb/c mice were randomly divided into 4 groups. The mice in control group were given soybean oil. The mice in group 2 to 4 were given phthalanilic acid at dose 30 mg/kg, 100 mg/kg and 300 mg/kg by gavage respectively for 28 days. After 24 hours of the last contamination, the histopathology of spleen and thymus, immunologic factors and cell multiplication of lymphocyte were analysed. The data were analysed by SPSS.
  
  
  RESULTS
  After contamination for 28 days, 300 mg/kg phthalanilic acid could cause that the cell multiplication of lymphocyte were inhibited. Spleens were damaged at the dose of 100 mg/kg. The concentration of IFN-γ and IL-4[ (843.31±14.81) pg/ml and (1174.44±7.32) pg/ml] in thymus were increased significantly (P<0.05) at the dose of 30 mg/kg.
  
  
  CONCLUSIONS
  Different doses of phthalanilic acid may damnify the immune system of mice at different degrees for 28 days continuous contamination. Phthalanilic acid might have immunotoxicity.
authors: Department of Toxicology, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
authors: L L
authors: LL
authors: Dai
authors: S H
authors: SH
authors: Wei
authors: W
authors: W
authors: Zhuang
authors: L
authors: L
authors: Li
mesh_terms: D000818:Animals; D016207:Cytokines; D008214:Lymphocytes; D051379:Mice; D008807:Mice, Inbred BALB C; D013154:Spleen
chemical_list: D016207:Cytokines