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EnglishA method for separation and quantification of S-nitrosoglutathione in red cell extracts by capillary electrophoresis is reported. The method is based on the direct analysis of the metaphosphoric acid erythrocyte extract containing diethylenetriaminepentaacetic acid. Optimization of the method is briefly discussed. Best results in the shortest time were obtained at 25°C, using a coated capillary, 7 kV applied voltage and phosphate sodium 40 mmol/L (pH 2.2) as running buffer. Reproducibility, detection limits, and recoveries of S-nitrosoglutathione analyses were checked. The results evidenced that S- nitrosoglutathione is formed in erythrocytes treated with S-nitrosocysteine, a transnitrosating agent. Under our experimental conditions, the contemporaneous detection and quantification of reduced and oxidized glutathione present in cell extract could also be performed.
Determination of S-nitrosoglutathione in erythrocytes by capillary zone electrophoresis / MESSANA I; ROSSETTI D.V.; MISITI F.; VINCENZONI F.; TELLONE E.; GIARDINA B.; CASTAGNOLA M.. - In: ELECTROPHORESIS. - ISSN 0173-0835. - 21:8(2000), pp. 1606-1610.
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| Titolo: | Determination of S-nitrosoglutathione in erythrocytes by capillary zone electrophoresis |
| Autori: | |
| Data di pubblicazione: | 2000 |
| Rivista: | |
| Citazione: | Determination of S-nitrosoglutathione in erythrocytes by capillary zone electrophoresis / MESSANA I; ROSSETTI D.V.; MISITI F.; VINCENZONI F.; TELLONE E.; GIARDINA B.; CASTAGNOLA M.. - In: ELECTROPHORESIS. - ISSN 0173-0835. - 21:8(2000), pp. 1606-1610. |
| Abstract: | A method for separation and quantification of S-nitrosoglutathione in red cell extracts by capillary electrophoresis is reported. The method is based on the direct analysis of the metaphosphoric acid erythrocyte extract containing diethylenetriaminepentaacetic acid. Optimization of the method is briefly discussed. Best results in the shortest time were obtained at 25°C, using a coated capillary, 7 kV applied voltage and phosphate sodium 40 mmol/L (pH 2.2) as running buffer. Reproducibility, detection limits, and recoveries of S-nitrosoglutathione analyses were checked. The results evidenced that S- nitrosoglutathione is formed in erythrocytes treated with S-nitrosocysteine, a transnitrosating agent. Under our experimental conditions, the contemporaneous detection and quantification of reduced and oxidized glutathione present in cell extract could also be performed. |
| Handle: | http://hdl.handle.net/11584/1189 |
| Tipologia: | 1.1 Articolo in rivista |
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