title: [Acute and subacute toxicity studies of tris (1,3-dichloro-2-propyl) phosphate on mice].
abstract: Slc/ddY mice (10 male, 10 female per group) were given a single p.o. intubation of tris (1,3-dichloro-2-propyl) phosphate (TDCPP) in olive oil and were observed for 14 days. LD50 values of male and female mice were 2.67 (2.52 approximately 2.83) and 2.25 2.25 (2.12 approximately 2.39) g/kg, respectively. The animals revealed ataxic gait, hyperactivity, and convulsion. Slc/ddY mice (12 male, 12 female er group) were administered diet containing 1.33, 0.42, 0.13, 0.04, and 0.01% of TDCPP for 3 months. Male and female mice of the 1.33% group showed emaciation, rough hair, and tremor; and all animals died within one month. Hematological studies showed slight anemia in males of the 0.42% group and females of the 0.42% and 0.13% groups. They also exhibited a tendency to increase ALP and GPT levels. The animals of the 0.42%, 0.13% and 0.04% groups exhibited tendency to increase liver weights and kidney weights in both sexes. Histopathologically, very slight focal necrosis was recognized in the liver in only 2 females of the 0.42% group. The NOEL under this condition is 0.01% in the diet of tris (1,3-dichloro-2-propyl) phosphate (male: 13.2 mg/kg/day, female: 15.3 mg/kg/day).
authors.forename: E
authors.initials: E
authors.lastname: Kamata
authors.forename: K
authors.initials: K
authors.lastname: Naito
authors.forename: Y
authors.initials: Y
authors.lastname: Nakaji
authors.forename: Y
authors.initials: Y
authors.lastname: Ogawa
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Kaneko
authors.forename: K
authors.initials: K
authors.lastname: Takada
authors.forename: Y
authors.initials: Y
authors.lastname: Kurokawa
authors.forename: M
authors.initials: M
authors.lastname: Tobe
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D004435:Eating / Q000187:drug effects; D005260:Female; D006403:Hematologic Tests; D007668:Kidney / Q000187:drug effects; D007928:Lethal Dose 50; D008099:Liver / Q000187:drug effects; D008297:Male; D051379:Mice; D009929:Organ Size / Q000187:drug effects; D009943:Organophosphorus Compounds / Q000008:administration & dosage / Q000633:toxicity*
chemical_list: D009943:Organophosphorus Compounds; C016805:tris(1,3-dichloro-2-propyl)phosphate