Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:3.1.4.37 (CNPase)
 539 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Male Wistar rats were given o-cresol in their drinking water (0.3 g/l) for 20 weeks. The ingested cumulative dose exceeded the acute LD50 at the fourth week of the experiment. O-cresol induced an increased drinking rate initially which decreased significantly below the drinking rate of the controls at the end of the experiment. The biochemical effects in the cerebral homogenate were inconspicuous, and they included increased RNA content initially, and reduced glutathione concentration and azoreductase activity at the end of experiment. Glial cells displayed significant increases in the acid proteinase and 2',3'-cyclic nucleotide 3'-phosphohydrolase activities at the 20th week of exposure.
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PMID:Toxic effects of peroral o-cresol intake on rat brain. 49 19

Male rats were exposed to vinyltoluene vapor after pretreatment with polychlorinated biphenyl (PCB). Brain and body solvent burdens were in a linear relationship to the exposure level although it changed between the two weeks while the solvent accumulated in the perirenal fat. The pretreatment caused a significantly smaller burden in the fat samples. Lysosomal acid proteinase was above the control range in the brain homogenate in the highest exposure, while glutathione peroxidase and 2',3'-cyclic nucleotide 3'-phosphohydrolase showed a dose-dependent decrease in the homogenate during the first week. Acid proteinase activity in the glial cells increased above the control range only in the PCB-pretreated rats in the first week. Azoreductase increased in the glial cells above the control range only in the first week, and the pretreatment augmented the increase very significantly. All biochemical effects were largely abolished within two weeks of solvent-free period with the exception of an increase in the cerebral RNA at the highest dose level. Vinyltoluene can cause more pronounced neurochemical effects compared to styrene, xylene, or toluene at similar exposure levels.
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PMID:Neurochemical effects of short-term inhalation exposure to vinyltoluene vapor. 616 11