Effects of Zhitangshu on malondialdehyde and free radical scavenger in blood of non-insulin-dependent diabetes mellitus rats;

Effect of free radical scavenger edaravone on superoxide dismutase of sepsis rats and its potential role

Edaravone, a free radical scavenger, was synthesized by condensation of ethyl acetoacetate withphenylhydrazine in presence of NaHSO3 in water at pH 6 for 2h in a yield of 83%.

Objective: To evaluate the efficacy of free-radical scavenger in the treatment of chronic bacterial prostatitis(CBP).

Objective: To evaluate the efficacy of free-radical scavenger in the treatment of chronic bacterial prostatitis( C B P).

The category and scavenging mechanism of free radical scavengers were also presented.

This paper introduces the nature of hydroxyl radical (稯H), mechanisms producing 稯H by catalytic oxidation and way for improvement of the Hydroxyl radical 's productivity and utilization rate,and analysis ways of hydroxyl radical and the free radical scavengers influencing 稯H decomposing organic pollutants.

Methods Rats were divided into three groups, that is, selenium cataract group given sodium selenite to induce cataract, cataract prevention group given sodium selenite and antioxidants and free radical scavengers at the same time and control group given no drugs.

The antioxidants were classified as three major species: radical scavenger(for examples,phenol and amine antioxidants),hydroperoxide decomposer(for examples,dithiocarbamate derivatives),and antioxidation synergist(for example,phosphorous and sulfur free molybdate ester).