Mean Values of Oxidative Stress Parameters in Healthy Subjects
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|ClinicalTrials.gov Identifier: NCT00313118|
Recruitment Status : Withdrawn (Problems with recruiting)
First Posted : April 11, 2006
Last Update Posted : March 28, 2017
|Condition or disease|
In certain situations, free radicals can be generated in an exaggerated manner and can injure tissues and organs by interacting with lipids, proteins, or DNA. So, oxidative stress has been implicated in a large number of human diseases. To survive, the human body has developed a complex, efficient, and highly adaptive antioxidant defense system. The eye is also protected against oxidative stress by several mechanisms involving antioxidant enzymes such as catalase (CAT) and superoxide dismutase (SOD), as well as by low-molecular-weight antioxidants such as glutathion (GSH) and ascorbate.
Primary open-angle glaucoma (POAG) is a chronic, slowly progressive optic neuropathy, characterized by excavation of the optic nerve head (ONH) and a distinctive pattern of visual field (VF) defects. The disease is multifactorial in origin, so that besides more extensively investigated factors oxidative stress has also been proposed as a contributing factor in the etiology of glaucomatous optic neuropathy. Oxidative stress represents a harmful state defined by the presence of pathologic levels of reactive oxygen species (ROS) relative to antioxidant defense.
Therefore, it would be also important to determine whether there is a relationship between circulating levels of the defense parameters to oxidative stress like malondialdehyde, GSH and SOD, and the occurrence of POAG.
Since there are only the limits of variation for these defense parameters available, mean values of the plasma levels of malondialdehyde, glutathion and superoxide dismutase will be determined in healthy subjects.
|Study Type :||Observational|
|Actual Enrollment :||0 participants|
|Official Title:||Determination of the Mean Values of Oxidative Stress Parameters in the Plasma of Healthy Subjects|
|Study Start Date :||January 2006|
|Actual Primary Completion Date :||September 2010|
|Actual Study Completion Date :||December 2016|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00313118
|University Eye Clinic Basel|
|Basel, BS, Switzerland, 4031|
|Study Director:||Selim Orgül, MD||University Hospital, Basel, Switzerland|