Superoxide Dismutase

Superoxide Dismutase: Overview

Superoxide dismutase (SOD) is an antiinflammatory, antioxidant enzyme produced by the body that protects against joint inflammation.

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Although SOD has been sold as a supplement, animal research shows that oral SOD is destroyed by the digestive system before it can repair damaged joints.  Responsible scientists presume the same is true for humans, and there remains no evidence supporting the use of oral SOD supplements.  Additional research with enteric-coated tablets of active SOD may provide new routes of administration in the future for use in inflammatory disorders.

Nevertheless, three minerals are needed by the body to make its own SOD: zinc, copper and manganese.  Deficient levels of copper and manganese will lower SOD levels in animals.  Moreover, copper-deficient humans have low SOD levels which increase with copper supplementation.  Supplementing copper in patients with rheumatoid arthritis has also been reported to increase SOD levels.

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Superoxide Dismutase:

Superoxide Dismutase can help with the following:


Poor/Slow Wound Healing

During the initial phase of wound healing, immune cells are rushed to the wound site to protect against harmful invaders.  They actually use free radicals to fight bacteria and to dispose of dead tissue.  Once the free radicals have accomplished their job, however, they must be neutralized so the actual healing process can begin.  SOD and other antioxidants such as vitamins C and D stop the free-radical oxidation process and promote the healing and repair process itself.  Wounds treated with SOD have been shown to heal better and more quickly [Niwa 1989; Misaki et al. 1990; Eldad et al. 1998].

Injury can deplete SOD and other antioxidants.  For certain antioxidants, depletion levels as high as 70% have been reported following injury [Ballmer et al. 1994].  SOD should be supplemented to encourage new tissue to grow, to enhance collagen, and to reduce swelling.  Current research indicates that SOD taken orally is destroyed in the digestive tract.  A lipid-encapsulated injectable form of SOD (LIPSOD) and a sublingually administered form currently show the most promise for direct supplementation.


Crohn's Disease

A study from France demonstrated the use of an antioxidant called superoxide dismutase and desferoxamine (an iron chelating drug) which allowed 82% of severe Crohn's patients to go into remission.


Rheumatoid Arthritis

In a Danish study, arthritis patients were treated with injections of superoxide dismutase, an enzyme containing copper (or manganese and zinc) that is found within the cells.  Many obtained relief from symptoms such as joint swelling, pain and morning stiffness.

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