{"title":"Changes of estrogen concentration in sewage treatment processes and degradation of estrogens by the microorganism in biofilm on the surface of gravels","authors":"Sumiko Matsuoka, Tomoko Tanaka, Kumiko Kodama, Yuko Kurokawa, Sayaka Eguchi, Yoshikazu Yamamoto, S. Kawai","doi":"10.11403/JSET.11.11","DOIUrl":"https://doi.org/10.11403/JSET.11.11","url":null,"abstract":"","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"17 1","pages":"11-19"},"PeriodicalIF":0.0,"publicationDate":"2008-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82801574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The metallothionein levels of the carps in the river of Yamanashi Prefecture were measured as an environmental pollution biomarker. The carps(n=70)were caught in 4 places during 1999~2001. Concentrations of metallothionein and heavy metals(Cd, Hg, Zn, Cu, V, Mn)in the hepatopancreas were measured. The mean value of metallothionein level of the carp captured in the each sampling station could not recognize the difference. However, it was shown that the metallothionein had been induced in the part of the carp. In addition, positive correlation between metallothionein level and Cu level in the hepatopancreas was recognized.(r=0.80, p<0.001).As a result of the metal analysis of the metallothionein using HPLC/ICP-MS, the Cu has mainly combined with the metallothionein. These results show that the metallothionein of carp in the river of Yamanashi Prefecture was induced by Cu.
{"title":"Metallothionein levels of carps in the river of Yamanashi Prefecture","authors":"T. Hasegawa, M. Satoh, Y. Seko","doi":"10.11403/JSET.10.59","DOIUrl":"https://doi.org/10.11403/JSET.10.59","url":null,"abstract":"The metallothionein levels of the carps in the river of Yamanashi Prefecture were measured as an environmental pollution biomarker. The carps(n=70)were caught in 4 places during 1999~2001. Concentrations of metallothionein and heavy metals(Cd, Hg, Zn, Cu, V, Mn)in the hepatopancreas were measured. The mean value of metallothionein level of the carp captured in the each sampling station could not recognize the difference. However, it was shown that the metallothionein had been induced in the part of the carp. In addition, positive correlation between metallothionein level and Cu level in the hepatopancreas was recognized.(r=0.80, p<0.001).As a result of the metal analysis of the metallothionein using HPLC/ICP-MS, the Cu has mainly combined with the metallothionein. These results show that the metallothionein of carp in the river of Yamanashi Prefecture was induced by Cu.","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"1 1","pages":"59-67"},"PeriodicalIF":0.0,"publicationDate":"2007-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74862281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Report of the 6th World Congress on Alternatives and Animal Use in the Life Sciences","authors":"N. Tatarazako","doi":"10.11403/JSET.10.77","DOIUrl":"https://doi.org/10.11403/JSET.10.77","url":null,"abstract":"","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"38 1","pages":"77-79"},"PeriodicalIF":0.0,"publicationDate":"2007-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91011405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Report on the 13th International symposium on toxicity assessment","authors":"T. Kusui","doi":"10.11403/JSET.10.81","DOIUrl":"https://doi.org/10.11403/JSET.10.81","url":null,"abstract":"","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"140 1","pages":"81-85"},"PeriodicalIF":0.0,"publicationDate":"2007-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73852295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Latest Movement toward Management of Chemicals by Ministry of the Environment Japan","authors":"M. Wakabayashi","doi":"10.11403/JSET.10.69","DOIUrl":"https://doi.org/10.11403/JSET.10.69","url":null,"abstract":"","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"14 1","pages":"69-76"},"PeriodicalIF":0.0,"publicationDate":"2007-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89704501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Benzarti, H. Hamdi, I. Aoyama, N. Jedidi, A. Hassen, A. Dahmane
The long term impact of successive municipal solid waste compost(MSWC)amendments on soil was investigated using physico-chemical analyses, soil microbial activity characterization and direct solid-phase bioassays. Unvegetated soil plots had been yearly amended with different amounts of Tunisian MSWC and conventional farm manure(FM) for four consecutive years. Despite the changes in physico-chemical properties of organically amended soils, neither the amendment type nor the incorporated amount had significant effects on soil ecotoxicity, microbial growth and enzymatic activities at long-term.
{"title":"Assessment of the Effect of Repetitive Municipal Solid Waste Compost Application on Soil Using Physico-chemical Analyses, Solid-phase Bioassays and Microbial Activity Characterization","authors":"S. Benzarti, H. Hamdi, I. Aoyama, N. Jedidi, A. Hassen, A. Dahmane","doi":"10.11403/JSET.10.19","DOIUrl":"https://doi.org/10.11403/JSET.10.19","url":null,"abstract":"The long term impact of successive municipal solid waste compost(MSWC)amendments on soil was investigated using physico-chemical analyses, soil microbial activity characterization and direct solid-phase bioassays. Unvegetated soil plots had been yearly amended with different amounts of Tunisian MSWC and conventional farm manure(FM) for four consecutive years. Despite the changes in physico-chemical properties of organically amended soils, neither the amendment type nor the incorporated amount had significant effects on soil ecotoxicity, microbial growth and enzymatic activities at long-term.","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"206 1","pages":"19-30"},"PeriodicalIF":0.0,"publicationDate":"2007-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73966279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ryohei Sato, K. Mitani, Toru Matsumoto, Shouji Takahashi, R. Yamada, Y. Kera
The inhibitory effects of various insecticides and their derivatives on acetylcholinesterase(AChE)purified from the body muscle homogenate of Koi carp(Cyprinus carpio)were examined in vitro. The p(IC50), negative logarithm of inhibitor concentration(M)required for 50% inhibition, of individual chemicals was estimated to be 3.2-8.2 and 5.4-6.1 for the organophosphates and carbamates tested, respectively. Of the 35 chemicals examined, isoxathion oxon was the most potent inhibitor as shown by p(IC50)of 8.2, and oxono organophospate compounds(with P=O)were hundreds to thousands times more inhibitory than their thiono analogues(with P=S). Azinphos, chloropyrifos, paraoxon and parathion in the form of diethyl ester were slightly more inhibitory than their dimethyl analogues, respectively. Effects of combination of different insecticides were also examined, and various combinations tested showed an additive inhibitory effect.
{"title":"Effects of Insecticides In Vitro on Acetylcholinesterase Purified from Body Muscle of Koi Carp (Cyprinus carpio)","authors":"Ryohei Sato, K. Mitani, Toru Matsumoto, Shouji Takahashi, R. Yamada, Y. Kera","doi":"10.11403/JSET.10.31","DOIUrl":"https://doi.org/10.11403/JSET.10.31","url":null,"abstract":"The inhibitory effects of various insecticides and their derivatives on acetylcholinesterase(AChE)purified from the body muscle homogenate of Koi carp(Cyprinus carpio)were examined in vitro. The p(IC50), negative logarithm of inhibitor concentration(M)required for 50% inhibition, of individual chemicals was estimated to be 3.2-8.2 and 5.4-6.1 for the organophosphates and carbamates tested, respectively. Of the 35 chemicals examined, isoxathion oxon was the most potent inhibitor as shown by p(IC50)of 8.2, and oxono organophospate compounds(with P=O)were hundreds to thousands times more inhibitory than their thiono analogues(with P=S). Azinphos, chloropyrifos, paraoxon and parathion in the form of diethyl ester were slightly more inhibitory than their dimethyl analogues, respectively. Effects of combination of different insecticides were also examined, and various combinations tested showed an additive inhibitory effect.","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"77 1","pages":"31-38"},"PeriodicalIF":0.0,"publicationDate":"2007-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87277743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigations of marine pollution with sea urchin eggs","authors":"N. Kobayashi","doi":"10.11403/JSET.10.5","DOIUrl":"https://doi.org/10.11403/JSET.10.5","url":null,"abstract":"","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"13 1","pages":"5-9"},"PeriodicalIF":0.0,"publicationDate":"2007-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76804114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Manabe, Yuji K. Takahashi, T. Yoshimi, T. Miura, Y. Sugaya
{"title":"Development of an Acute Toxicity Test for First-Instar Larvae of a Midge ( Chironomus yoshimatsui ) using a Teflen-sheet","authors":"T. Manabe, Yuji K. Takahashi, T. Yoshimi, T. Miura, Y. Sugaya","doi":"10.11403/JSET.10.51","DOIUrl":"https://doi.org/10.11403/JSET.10.51","url":null,"abstract":"","PeriodicalId":14585,"journal":{"name":"Japanese journal of environmental toxicology","volume":"57 1","pages":"51-57"},"PeriodicalIF":0.0,"publicationDate":"2007-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81909075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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