osteoporosis is a disease of high prevalence with increased bone loss. it has potential public health threat and that the health authorities had taken several measures for its control. in recent years, considerable attention has been given to physiopathology of osteoporosis. oxidative stress has been proved to be involved in bone resorption. oxidative stress occurs when balance between oxidants...

background: artemia urmiana are small crustaceans that because of its non-selective filter feeder pattern potentially may absorb high level of heavy metals through their living environment. in this study, the effects of different levels of cadmium and copper on survival, catalase activity and metals bioconcentration rates in a. urmiana nauplii have been investigated. methods: the research was c...

Rao, P. J. (University of Illinois, Urbana), A. D. Larson, and C. D. Cox. Catalase activity in Leptospira. J. Bacteriol. 88:1045-1048. 1964.-A number of serotypes of Leptospira were found to possess catalase activity, although considerable variation in activity existed among various serotypes. Catalase activity of L. pomona was reduced by inhibitors commonly employed for arresting catalase acti...