1.Study on acute toxicity of ginkgolic acid against fish
Lianhen ZHANG ; Xiangyang WU ; Liuqing YANG ; Wenli ZHANG ; Qinjuan GE ; Tiantian YE
Chinese Journal of Schistosomiasis Control 1989;0(02):-
Objective To study the acute toxicity of ginkgolic acids from Ginkgo biloba sarcotestas against fish.Methods The ginkgolic acid mixture was obtained from Ginkgo biloba sarcotestas.The acute toxicities of the ginkgolic acid mixture against the fry of Cyprinus carpio var.and fry of Carassius auratus were detected.Results LC50 and LC90 of the ginkgolic acid mixture against the fry of Cyprinus carpio var.were 1.805 mg/L and 2.191 mg/L,respectively.LC50 and LC90 of the ginkgolic acid mixture against the fry of Carassius auratus were 1.930 mg/L and 2.217 mg/L,respectively.Conclusions The toxicity of ginkgolic acids against the fry of Cyprinus carpio var.and fry of Carassius auratus is medium.
2. Study of the effect of occupational exposure to glyphosate on hepatorenal function
Feng ZHANG ; Liping PAN ; Enmin DING ; Qinjuan GE ; Zhihu ZHANG ; Jianning XU ; Li ZHANG ; Baoli ZHU
Chinese Journal of Preventive Medicine 2017;51(7):615-620
Objective:
To explore the effect of occupational exposure to glyphosate on hepatorenal function.
Methods:
526 workers who were occupationally exposed to glyphosate from 5 glyphosate-producing factories were selected as cases; and another 442 administrative staffs who were not exposed to glyphosate were selected as controls from April to November, 2014. All the subjects accepted occupational health examination. The concentration level of glyphosate in the air of workshop was detected and the time weighted average concentration (TWA) was calculated. And analyze the difference of hepatorenal fuction between case group and control group.
Result:
The age of the subjects in the case and control groups were separately (35.6±10.3), (34.3±9.7) years old, with the length of working for (6.5±5.7), (7.7±6.8) years. The TWA of glyphosate in the case group was between <0.03-48.91 mg/m3, with the geometric mean at 3.78 mg/m3. The overall rates of abnormal hepatic and renal function in the case group were 14.4% (76 cases) and 16.2% (85 cases), respectively; while those were 5.0% (22 cases) and 4.8% (21 cases), respectively in control group, and the difference showed statistical significance (