The activity of blood cholinesterase in rats exposed to dimethypo after drug intervention / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
; (12): 419-421, 2002.
Article
de Zh
| WPRIM
| ID: wpr-325491
Bibliothèque responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the activity of ChE in rats poisoned by dimehypo and then treated with pralidoxime methylchloride or unithiol.</p><p><b>METHOD</b>Rats were divided into control group (dimehypo); intervention groups [dimehypo plus pralidoxime methylchloride or dimehypo plus unithiol (sodium dimercaptopropanesulphonate)]. Rats were dosed with 4 different doses of dimehypo: 1/16, 1/8, 1/4 and 1/2 of LD50 respectively(the LD50 of dimehypo is 342 mg/kg). After being poisoned with dimehypo orally, rats were immediately injected intramuscularly with pralidoxime methylchloride or unithiol. The activity of ChE in blood was detected before and 1/2, 1, 2, 4 and 24 h after poisoning in dimehypo and intervention groups.</p><p><b>RESULT</b>The ChE activity of four dose subgroups at 1 h after poisoning were (1.04 +/- 0.21), (0.84 +/- 0.12), (0.71 +/- 0.12), (0.66 +/- 0.07) U/ml respectively; the ChE activity of pralidoxime methylchloride intervention groups were (1.01 +/- 0.18), (1.17 +/- 0.11), (1.01 +/- 0.04), (1.03 +/- 0.12) U/ml respectively; and the ChE activity of unithiol intervention groups were (1.15 +/- 0.15), (1.26 +/- 0.27), (1.08 +/- 0.08), (1.04 +/- 0.12) U/ml respectively. The inhibited ChE in blood was recovered by either treatment with pyraldoxime methylchloride or unithiol. These two drugs had similar effects of recovering the activity of ChE(P > 0.05), but at higher doses(1/4 and 1/2 of LD50) the effects of both were not so good.</p><p><b>CONCLUSION</b>Pralidoxime methylchloride and unithiol could partly recover the activity of ChE inhibited by dimehypo.</p>
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Pharmacologie
/
Intoxication
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Composés de pralidoxime
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Unithiol
/
Sang
/
Anticholinestérasiques
/
Cholinesterases
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Relation dose-effet des médicaments
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Insecticides
/
Antidotes
Limites du sujet:
Animals
langue:
Zh
Texte intégral:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Année:
2002
Type:
Article