Reproductive and developmental toxicity of 2- (2H-1, 2, 3-benzotriazol-2-yl) -4-methyl-6- (2-methylpropen-2-yl) phenol in mice: an experimental study
10.3760/cma.j.issn.1001-9391.2018.01.015
- VernacularTitle: 2-（2H-1，2，3-苯并三氮唑-2-基）-4-甲基-6-（2-甲基丙烯-2-基）苯酚的生殖和发育毒性试验研究
- Author:
Tong GUAN
1
;
Ning HE
;
Min LI
;
Dalong ZHANG
;
Chunhong ZHAO
;
Zhiyong QIAN
Author Information
1. Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
- Publication Type:Journal Article
- Keywords:
2- (2H-1, 2, 3, -benzotriazol-2-yl) -4-methyl-6- (2-methylpropen-2-yl) phenol;
Mouse;
Reproductive and developmental toxicity
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2018;36(1):50-52
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the reproductive and developmental toxicity of 2- (2H-1, 2, 3-benzotriazol-2-yl) -4-methyl-6- (2-methylpropen-2-yl) phenol in mice and to provide a basis for its risk assessment.
Methods:The reproductive and developmental toxicity of 2- (2H-1, 2, 3-benzotriazol-2-yl) -4-methyl-6- (2-methylpropen-2-yl) phenol was tested using the screening method of chemicals with reproductive and developmental toxicity in "Chemical Testing Method" (SEPA). After five days of adaptive feeding, 120 specific pathogen-free healthy Kunming mice (male/female ratio=1:1) were orally administered 0 (control) , 146, 292, and 584 mg/kg 2- (2H-1, 2, 3-benzotriazol-2-yl) -4-methyl-6- (2-methylpropen-2-yl) phenol for two weeks. One male mouse was mated with one female mouse in a single cage. The day on which a vaginal plug was observed was defined as gestation day 0 (GD0). The exposure for female mice was sustained to four days postpartum and the exposure for male mice was sustained for two weeks after mating. The body weight, food intake, body length, tail length, and sex ratio were recorded and the reproductive index was calculated. The reproductive organs were weighed and subjected to histopathological examination.
Results:The 584 mg/kg group had significantly lower body weight at weeks 5 and 6 and food intake at week 6 in male mice, uterus weight and uterus/body weight ratio in female mice, and body weight, body length, and tail length on day 0 in offspring compared with the control group (all P<0.05). The 292 mg/kg group had significantly lower testis weight of male mice and food intake of female mice at gestational week 2 than the control group (both P<0.05). The 146 mg/kg group had significantly lower food intake of female mice at gestational week 2 than the control group (P<0.05) .
Conclusion:For male and female Kunming mice, the no observed adverse effect levels of 2- (2H-1, 2, 3, -benzotriazol-2-yl) -4-methyl-6- (2-methylpropen-2-yl) phenol are both 146 mg/kg.
