Effect of polysaccharide from cultured Cordyceps sinensis on immune function and anti-oxidation activity of mice exposed to 60Co

► Polysaccharide from cultured Cordyceps sinensis is a heteropolysaccharide. ► It is an immunostimulant which can protect and/or recover from ionizing radiation induced immunosuppression in mice. ► Anti-oxidation and cytokine modulation might be involved in the possible mechanisms.