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superoxide
(redirected from Superoxides)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
superoxide /su·per·ox·ide/ (-ok´sīd) any compound containing the highly reactive and extremely toxic oxygen radical O2−, a common intermediate in numerous biological oxidations.
su·per·ox·ide (spr-ksd)
n.
A compound containing a univalent anionic oxygen molecule or the univalent anion itself.

superoxide
[-ok′sīd]
a common reactive form of oxygen that is formed when molecular oxygen gains a single electron. Superoxide radicals can attack susceptible biologic targets, including lipids, proteins, and nucleic acids.

superoxide [soo″per-ok´sīd]
any compound containing the highly reactive superoxide ion O2, a common intermediate in numerous biological oxidations.

superoxide,
n a common form of oxygen that is created when molecular oxygen gains a single electron. Superoxide radicals may attack susceptible biologic targets, including lipids, proteins, and nucleic acids.

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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They say that these superoxides lead to the creation of a toxic molecule called "reactive oxygen species" (ROS), which is shown to be particularly harmful to muscle tissue, and may lead to problems ranging from aging and frailty to Parkinson's disease and cancer.
Although the superoxides could explain why Martian soil breaks down organic molecules, there still are other potential culprits, comments Christopher P.
In 1956, it was suggested that ageing was caused by a build-up of molecular damage caused by reactive forms of oxygen, called superoxides or free radicals, circulating in the body.
 
 
 
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