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Extracellular Superoxide Dismutase, a Potential Extracellular Biomarker Candidate for Prolactinoma


Aim: To investigate whether the extracellular superoxide dismutase (EC-SOD) and manganese superoxide dismutase (Mn-SOD) level changes during prolactinoma (PRL) development.

Methods: Surgical tissues from 37 female patients with PRL were tested for Mn-SOD and serum sample from such PRL patients were tested for EC-SOD level changes with Western Blot. The Mn-SOD level from blood cells was also investigated to show whether the Mn-SOD variation can locate tumorigenesis tissues.

Results: According to the patients’ age analysis, age 20−40 years is high risk for getting PRL. There is a positive relationship between the PRL severity and EC-SOD. The Mn-SOD level from surgical tissues, but not blood cells, also shows a corresponding positive relationship to PRL severity, which indicates that elevated Mn-SOD, might only happen in PRL tumorigenesis tissues.

Conclusions: Extracellular superoxide dismutase is an extracellular protein and the serum EC-SOD could be a good candidate for the diagnoses of prolactinoma

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e-Published: 15 Feb, 2013

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