Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P17174 (aspartate aminotransferase)
 14,872 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

1. Rosy barb (Puntius conchonius) were exposed to 181 micrograms/l mercuric chloride for 48 h and the activity of acid and alkaline phosphatases (AcP and AIP), aspartate aminotransferase (AAT), alanine aminotransferase (AIAT), lactic dehydrogenase (LDH), and acetylcholinesterase (AchE) were measured in vivo in several organs. 2. The AcP activity was inhibited in the liver, gills, kidneys, and gut but stimulated in the gonads. With the exception of kidney, the AIP activity showed an increase in all the organs examined. The AAT and AIAT were generally inhibited in different organs. An increase in LDH activity occurred in the cardiac and skeletal muscles while the AchE activity was considerably lowered in the brain, gills, and liver. 3. In vitro exposure to mercury at concentrations ranging between 10(-10) and 10(-4) M, inhibited the AIP, AAT, AIAT, LDH, and AchE activities in the tissues examined. The AcP activity was also depressed in all the tissues except in the testes, in which a marginal increase was noted. 4. The in vivo and in vitro effects of Hg were not of similar quality implying sequestration of toxic cations in the intact animals.
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PMID:Use of the fish enzyme system in monitoring water quality: effects of mercury on tissue enzymes. 198 72

Effect of isoflavone on cypermethrin-induced changes in enzyme activities and free radicals was studied in plasma, liver, brain and testes of male New Zealand White rabbits. Rabbits were orally given sublethal dose of cypermethrin (24 mg/kg BW; 1/100 LD50), while isoflavone (2 mg/kg BW) was given alone or in combination with cypermethrin. The tested doses were given to rabbits every other day for 12 weeks. Results obtained showed that cypermethrin significantly (P < 0.05) induced free radicals in plasma, liver, brain and testes. The activities of glutathione S-transferase (GST) (liver, brain and testes), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) (liver and testes), and alkaline phosphatase (AlP) (liver) were significantly (P < 0.05) decreased due to cypermethrin administration. Contrariwise, the activities of GST, AST, ALT and AIP were increased in plasma. The activity of acetylcholinesterase (AChE) did not change in plasma and brain of treated rabbits with cypermethrin. Isoflavone alone significantly (p < 0.05) decreased the levels of free radicals in plasma, liver, brain and testes, while did not produce any significant effect on the investigated enzymes. However, isoflavone is able to reverse the changes in enzyme activities due to the effect of cypermethrin. Results concluded that isoflavone confers marked protection against cypermethrin-induced oxidative stress in rabbit's plasma, liver, brain and testes.
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PMID:Protective effects of isoflavone on some biochemical parameters affected by cypermethrin in male rabbits. 1271 53