 Journal: Toxicol . Lett . Citation: V : 000 ( 0-0 ) P : 000-00 Year: 0000 Type: ARTICLE Literature: oryza Field: abstract Doc ID: pub00000000 Accession (PMID): 00000000 Abstract: A total of 000 farmers were selected from two areas ( J and S ) for this study . In area J , the subgroups Ja ( 00 subjects ) and Jb ( 00 subjects ) sprayed on rice crops either the organophosphate ( OP ) insecticide methamidophos or the mixture methamidophos-deltamethrin ( a pyrethroid , Pyr ) . In area S , the subgroups Sa ( 00 subjects ) and Sb ( 00 subjects ) sprayed on cottons either the OP methyl-parathion or the mixture methyl-parathion-deltamethrin . Groups Jc ( 00 subjects ) and Sc ( 00 subjects ) were non-exposed controls . Erythrocyte acetylcholinesterase ( AChE ) was measured by the Ellmans method before spraying , after 0-h exposure and 0 h later . Inhibition of AChE occurred after 0-h exposure to both single OP ( Ja and Sa ) and OP-containing mixtures ( Jb and Sb ) as compared with both pre-exposure and control values ( Jc and Sc ) . A similar recovery was found in subgroups Ja , Jb , Sa and Sb 0 h after spraying , but all remained lower than the pre-exposure level . There was no difference in AChE inhibition and recovery between the single OP subgroups and the OP mixture subgroups . The inhibitory effect on AChE shown in subjects with combined OP-Pyr exposure was induced by the OP component of the insecticide mixture and to a similar extent as that induced by the single OP formulations . In addition to the fact that the OP is more potent than Pyrs , the above results might explain why the clinical manifestations of OP mixture poisonings are similar to those of single OP poisoning . Matching Sentences: [ Sen. 0, subscore: 0.00 ]: A total of 000 farmers were selected from two areas ( J and S ) for this study . In area J , the subgroups Ja ( 00 subjects ) and Jb ( 00 subjects ) sprayed on rice crops either the organophosphate ( OP ) insecticide methamidophos or the mixture methamidophos-deltamethrin ( a pyrethroid , Pyr ) . In area S , the subgroups Sa ( 00 subjects ) and Sb ( 00 subjects ) sprayed on cottons either the OP methyl-parathion or the mixture methyl-parathion-deltamethrin . Groups Jc ( 00 subjects ) and Sc ( 00 subjects ) were non-exposed controls . Erythrocyte acetylcholinesterase ( AChE ) was measured by the Ellmans method before spraying , after 0-h exposure and 0 h later . Inhibition of AChE occurred after 0-h exposure to both single OP ( Ja and Sa ) and OP-containing mixtures ( Jb and Sb ) as compared with both pre-exposure and control values ( Jc and Sc ) . A similar recovery was found in subgroups Ja , Jb , Sa and Sb 0 h after spraying , but all remained lower than the pre-exposure level . There was no difference in AChE inhibition and recovery between the single OP subgroups and the OP mixture subgroups . The inhibitory effect on AChE shown in subjects with combined OP-Pyr exposure was induced by the OP component of the insecticide mixture and to a similar extent as that induced by the single OP formulations . In addition to the fact that the OP is more potent than Pyrs , the above results might explain why the clinical manifestations of OP mixture poisonings are similar to those of single OP poisoning . [ Sen. 0, subscore: 0.00 ]: A total of 000 farmers were selected from two areas ( J and S ) for this study . In area J , the subgroups Ja ( 00 subjects ) and Jb ( 00 subjects ) sprayed on rice crops either the organophosphate ( OP ) insecticide methamidophos or the mixture methamidophos-deltamethrin ( a pyrethroid , Pyr ) . In area S , the subgroups Sa ( 00 subjects ) and Sb ( 00 subjects ) sprayed on cottons either the OP methyl-parathion or the mixture methyl-parathion-deltamethrin . Groups Jc ( 00 subjects ) and Sc ( 00 subjects ) were non-exposed controls . Erythrocyte acetylcholinesterase ( AChE ) was measured by the Ellmans method before spraying , after 0-h exposure and 0 h later . Inhibition of AChE occurred after 0-h exposure to both single OP ( Ja and Sa ) and OP-containing mixtures ( Jb and Sb ) as compared with both pre-exposure and control values ( Jc and Sc ) . A similar recovery was found in subgroups Ja , Jb , Sa and Sb 0 h after spraying , but all remained lower than the pre-exposure level . There was no difference in AChE inhibition and recovery between the single OP subgroups and the OP mixture subgroups . The inhibitory effect on AChE shown in subjects with combined OP-Pyr exposure was induced by the OP component of the insecticide mixture and to a similar extent as that induced by the single OP formulations . In addition to the fact that the OP is more potent than Pyrs , the above results might explain why the clinical manifestations of OP mixture poisonings are similar to those of single OP poisoning . [ Sen. 0, subscore: 0.00 ]: A total of 000 farmers were selected from two areas ( J and S ) for this study . In area J , the subgroups Ja ( 00 subjects ) and Jb ( 00 subjects ) sprayed on rice crops either the organophosphate ( OP ) insecticide methamidophos or the mixture methamidophos-deltamethrin ( a pyrethroid , Pyr ) . In area S , the subgroups Sa ( 00 subjects ) and Sb ( 00 subjects ) sprayed on cottons either the OP methyl-parathion or the mixture methyl-parathion-deltamethrin . Groups Jc ( 00 subjects ) and Sc ( 00 subjects ) were non-exposed controls . Erythrocyte acetylcholinesterase ( AChE ) was measured by the Ellmans method before spraying , after 0-h exposure and 0 h later . Inhibition of AChE occurred after 0-h exposure to both single OP ( Ja and Sa ) and OP-containing mixtures ( Jb and Sb ) as compared with both pre-exposure and control values ( Jc and Sc ) . A similar recovery was found in subgroups Ja , Jb , Sa and Sb 0 h after spraying , but all remained lower than the pre-exposure level . There was no difference in AChE inhibition and recovery between the single OP subgroups and the OP mixture subgroups . The inhibitory effect on AChE shown in subjects with combined OP-Pyr exposure was induced by the OP component of the insecticide mixture and to a similar extent as that induced by the single OP formulations . In addition to the fact that the OP is more potent than Pyrs , the above results might explain why the clinical manifestations of OP mixture poisonings are similar to those of single OP poisoning . [ Sen. 0, subscore: 0.00 ]: A total of 000 farmers were selected from two areas ( J and S ) for this study . In area J , the subgroups Ja ( 00 subjects ) and Jb ( 00 subjects ) sprayed on rice crops either the organophosphate ( OP ) insecticide methamidophos or the mixture methamidophos-deltamethrin ( a pyrethroid , Pyr ) . In area S , the subgroups Sa ( 00 subjects ) and Sb ( 00 subjects ) sprayed on cottons either the OP methyl-parathion or the mixture methyl-parathion-deltamethrin . Groups Jc ( 00 subjects ) and Sc ( 00 subjects ) were non-exposed controls . Erythrocyte acetylcholinesterase ( AChE ) was measured by the Ellmans method before spraying , after 0-h exposure and 0 h later . Inhibition of AChE occurred after 0-h exposure to both single OP ( Ja and Sa ) and OP-containing mixtures ( Jb and Sb ) as compared with both pre-exposure and control values ( Jc and Sc ) . A similar recovery was found in subgroups Ja , Jb , Sa and Sb 0 h after spraying , but all remained lower than the pre-exposure level . There was no difference in AChE inhibition and recovery between the single OP subgroups and the OP mixture subgroups . The inhibitory effect on AChE shown in subjects with combined OP-Pyr exposure was induced by the OP component of the insecticide mixture and to a similar extent as that induced by the single OP formulations . In addition to the fact that the OP is more potent than Pyrs , the above results might explain why the clinical manifestations of OP mixture poisonings are similar to those of single OP poisoning . Score: 0.00 Title: [ Effects of rice cleaning and cooking process on the residues of flutolanil , fenobucarb , silafluofen and buprofezin in rice ] 