Consulta: subjectFacets:"AChE"
Registros recuperados: 3
Data/hora: 03/06/2024 17:10:59

Bioindicators of pollutant exposure in the northwestern Mediterranean sea
Provedor de dados: 5
Autores: Burgeot, Thierry; Bocquene, Gilles; Porte, C; Dimeet, Joel; Santella, Rm; Garcia De La Parra, L.m.; Pihol-leszkowicz, A.; Raoux, C.; Galgani, Francois.
Several bioindicators were used to evaluate the biological and genotoxic effects of marine pollutants near large coastal cities in the northwestern part of the Mediterranean Sea. Three target species of teleosts were selected: red mullet Mullus barbatus and 2 types of comber (Serranus hepatus and S. cabrilla). Induction of ethoxyresorufin-O-deethylase (EROD) activity specific for polycyclic aromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB) was measured in the livers of the fish, and inhibition of acetylcholinesterase (AChE) by organophosphorus insecticides and carbamates was measured in their muscle tissues. Maximal EROD activities (16.8 +/- 2.7 to 19.4 +/- 4.2 pmol min(-1) mg protein(-1)) recorded in red muller near Barcelona (Spain),...
Tipo: Text
Palavras-chave: EROD; GST; AChE; Antioxidant enzymes; Biomonitoring; DNA adducts; PAH; Mullus barbatus.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00183/29410/27779.pdf

NTPDase and acetylcholinesterase activities in silver catfish, Rhamdia quelen (Quoy &amp;amp; Gaimard, 1824) (Heptapteridae) exposed to interaction of oxygen and ammonia levels
Provedor de dados: 83
Autores: Kaizer,Rosilene Rodrigues; Loro,Vania Lúcia; Schetinger,Maria Rosa Chitolina; Morsch,Vera Maria; Tabaldi,Luciane Almeri; Rosa,Cíntia Saydelles da; Garcia,Luciano de Oliveira; Becker,Alexssandro G.; Baldisserotto,Bernardo.
The effects of various levels of oxygen saturation and ammonia concentration on NTPDase (ecto-nucleoside triphosphate diphosphohydrolase, E.C. 3.6.1.5) and acetylcholinesterase (AChE, E.C. 3.1.1.7) activities in whole brain of teleost fish (Rhamdia quelen) were investigated. The fish were exposed to one of two different dissolved oxygen levels, including high oxygen (6.5 mg.L-1) or low oxygen (3.5 mg.L-1), and one of two different ammonia levels, including high ammonia (0.1 mg.L-1) or low ammonia (0.03 mg.L-1) levels. The four experimental groups included the following (A) control, or high dissolved oxygen plus low NH3; (B) low dissolved oxygen plus low NH3; (C) high dissolved oxygen plus high NH3; (D) low dissolved oxygen plus high NH3. We found that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; ATP; ADP; AChE.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400012

Monoterpenoids (thymol, carvacrol and S-(+)-linalool) with anesthetic activity in silver catfish (Rhamdia quelen): evaluation of acetylcholinesterase and GABAergic activity
Provedor de dados: 56
Autores: Bianchini,A.E.; Garlet,Q.I.; da Cunha,J.A.; Bandeira Junior,G.; Brusque,I.C.M.; Salbego,J.; Heinzmann,B.M.; Baldisserotto,B.
This study evaluated the anesthetic potential of thymol and carvacrol, and their influence on acetylcholinesterase (AChE) activity in the muscle and brain of silver catfish (Rhamdia quelen). The AChE activity of S-(+)-linalool was also evaluated. We subsequently assessed the effects of thymol and S-(+)-linalool on the GABAergic system. Fish were exposed to thymol and carvacrol (25, 50, 75, and 100 mg/L) to evaluate time for anesthesia and recovery. Both compounds induced sedation at 25 mg/L and anesthesia with 50–100 mg/L. However, fish exposed to carvacrol presented strong muscle contractions and mortality. AChE activity was increased in the brain of fish at 50 mg/L carvacrol and 100 mg/L thymol, and decreased in the muscle at 100 mg/L carvacrol....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AChE; Anesthesia; Benzodiazepine; Fish; GABAA; Terpenoids.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200610