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superoxide dismutase

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superoxide dismutase
n.
An enzyme that catalyzes the decomposition of a superoxide into hydrogen peroxide and oxygen.

superoxide dismutase (SOD),
an enzyme composed of metal-containing proteins that converts superoxide radicals into less toxic agents. It is the main enzymatic mechanism for clearing superoxide radicals from the body.

superoxide dismutase (sōō·per·ôkˑ·sīd dis·myōōˑ·tās),
n an enzyme that comprises metalloproteins and clears the body of superoxide radicals by converting them into less toxic substances.

superoxide
any compound containing the highly reactive superoxide ion O2, a common intermediate in numerous biological oxidations and an important killing mechanism generated in lysosomes of phagocytes after they have phagocytosed microorganisms.

superoxide dismutase
an enzyme that converts peroxides to two kinds of molecules in different states of oxidation. Present in aerobic bacteria.


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Tower and his team had noticed that overexpression of the enzyme, known as superoxide dismutase (SOD), boosted the activity level of fruit flies and even increased the life span of certain genetically engineered strains.
For those taking the supplement, researchers noted increased production of extracellular superoxide dismutase (an antioxidant enzyme), and improved endothelium-dependent vasodilation (blood vessel widening).
These observations are consonant with the decrease in superoxide dismutase (SOD) associated with occupational exposure to lead (Ito et al.
 
 
 
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