[Redox-homeostasis of cells].

Recent achievements of biophysics and physiology resulted to remarkable progress in the understanding of role of redox processes in cell vital function. It was established that oxidizing and reducing agents participate in processes of differentiation, proliferation and apoptosis. Representations about an existence of definite balance between oxidation and reduction processes in cells or a redox homeostasis were formed. Recent data about mechanisms of regulation of redox homeostasis were considered in the review. The correlation between redox homeostasis and metabolism were in detail analyzed. The special interest is given to a problem of quantitative description of redox phenomena in biological systems.