Microtiter plate assay for superoxide dismutase using MTT reduction by superoxide

M. Madesh, K. A. Balasubramanian

Producción científica: Articlerevisión exhaustiva

508 Citas (Scopus)


A simple microtiter plate based colorimetric assay for superoxide dismutase is described. The method, involves generation of superoxide by pyrogallol autoxidation and the inhibition of superoxide dependent reduction of the tetrazolium dye MTT [3-(4,5-dimethyl thiazol-2-yl) 2,5-diphenyl tetrazolium bromide] to its formazan, measured at 570 nm. The reaction was terminated by the addition of dimethyl sulfoxide (DMSO) which also helps to solubilize the formazan formed and the colour evolved was stable for many hours. The method was compared with other known methods to measure the activity of purified erythrocyte Cu,ZnSOD and superoxide dismutase activity from various rat tissues. This procedure involves inexpensive reagents, allows a rapid and sensitive measurement of SOD activity and the microtiter plate assay is suitable for use with large number of samples.

Idioma originalEnglish (US)
Páginas (desde-hasta)184-188
Número de páginas5
PublicaciónIndian Journal of Biochemistry and Biophysics
EstadoPublished - jun 1998
Publicado de forma externa

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry


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