Inhibition, recovery and field responses of Astyanax fasciatus (Cuvier, 1819) brain cholinesterases upon exposure to azinphos-methyl
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چکیده
منابع مشابه
Preliminary Qualitative Analysis on mtDNA in Astyanax fasciatus Populations Cuvier, 1819 (Teleostei; Characidae) Indicate Population Distinctiveness
A preliminary qualitative analysis of genetic variability status in Astyanax fasciatus (Cuvier, 1819) from upper Tibagi River headwaters and Vila Velha State Park (VVSP) was carried out by enzymatic digestion (RFLP) of DLoop region from mtDNA. The results showed that Tibagi and VVSP populations were genetically different.
متن کاملInhibition of cholinesterase activity by azinphos-methyl in two freshwater invertebrates: Biomphalaria glabrata and Lumbriculus variegatus.
In this study, some biochemical features and the extent of inhibition induced by the organophosphorous pesticide azinphos-methyl on the cholinesterase (ChE) activity present in whole soft tissue of two freshwater invertebrate species, the gastropod Biomphalaria glabrata and the oligochaete Lumbriculus variegatus were investigated. Both invertebrate organisms presented marked differences in ChE ...
متن کاملInhibition and recovery of cholinesterases in Odontophrynus americanus tadpoles exposed to fenitrothion.
We determined the levels of brain acetylcholinesterase (AChE) and tail butyrylcholinesterase (BChE) activities in tadpoles of Odontophrynus americanus exposed to a commercial formulation of fenitrothion. The mean brain AChE activities in the controls tadpoles varied from 6.91 to 6.39 micromol min(-1) mg(-1) protein, whereas tail BChE activities ranged among 0.26 to 0.17 micromol min(-1) mg(-1) ...
متن کامل[Cholinesterases: structure, role, and inhibition].
Enzymes acetylcholinesterase (AChE; E.C. 3.1.1.7) and butyrylcholinesterase (BChE; E.C. 3.1.1.8) have intensively been investigated in biomedicine and toxicology due to important role in organisms. Even if structurally homologous, they differ in catalytic activity, specificity, for substrates, and selectivity in binding to many ligands. This paper compiles the results of research on cholinester...
متن کاملField Study of Occupational Exposure to Methyl Bromide
To elucidate the circumstances of their occupational exposure to methyl bromide (MeBr), we conducted a 17-yr study on 124 workers employed by a MeBr manufacturer. Subjects were classified into three groups according to the nature of their work: synthesis group, filling group, and other group. Urinary concentrations of bromide ion (Br-) were assessed, and data attained via MeBr-health examinatio...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Society of Ecotoxicology
سال: 2012
ISSN: 2236-1693
DOI: 10.5132/jbse.2012.02.014