Effects of Chloramine-T And CuSO4 On Enzyme Activity Of Glucose 6-Phosphate Dehydrogenase From Rainbow Trout (Oncorhynchus Myskiss) Erythrocytes In Vitro An In Vivo

Date
2003
Authors
Çiltas, Abdulkadir
Erdogan, Orhan
Hisar, Olcay
Çiftçi, Mehmet
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Israeli Journal of Aquaculture - BAMIGDEH
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Abstract
Traditional treatments of parasitic and bacterial diseases are based on chemotherapeutic com- pounds such as chloramine-T and CuSO4. Although many compounds are used in fish treat- ments, their undesirable effects are not known. In this study, glucose 6-phosphate dehydroge- nase (G6PD) was purified from rainbow trout (Oncorhynchus mykiss) erythrocytes by hemolysate preparation, ammonium sulfate precipitation and 2', 5'-ADP Sepharose 4B affinity gel chromatography in a single day. The enzyme, with a specific activity of 14.51 EU/mg protein, was purified 906.8-fold with a yield of 70.38%. To check the purity of the enzyme, SDS poly- acrylamide gel electrophoresis was performed, which showed a single band. The effects of chlo- ramine-T and copper sulfate (CuSO4) on the G6PD were investigated in vitro. Chloramine-T and CuSO4 had inhibitory effects on the enzyme. I50 values of the chemotherapeutic compounds were determined by plotting percent activity and Ki values, and types of inhibition were deter- mined for each compound by means of Lineweaver-Burk graphs. In vivo studies showed that G6PD in rainbow trout erythrocytes was significantly inhibited by CuSO4 in one hour but not inhibited by chloramine-T.
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Keywords
chloramine-T, CuSO4, G6PD, inhibition, Oncorhynchus mykiss
Citation
Çiltas, A., Erdogan, O., Hisar, O., & Çiftçi, M. (2003). Effects of Chloramine-T And CuSO4 On Enzyme Activity Of Glucose 6-Phosphate Dehydrogenase From Rainbow Trout (Oncorhynchus Myskiss) Erythrocytes In Vitro An In Vivo. The Israeli Journal of Aquaculture - Bamidgeh, 55(3), 187-196.
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10 pages
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