Ayşegül AKBAY

7894

Antioxidant Status, Lipid Peroxidation Products and Cystatin C as Potential Clinical Markers of Alzheimer's Disease in Systemic Circulation

Growing data suggest oxidative stress contributes to the pathogenesis of Alzheimer's disease (AD). The objective of this study was to assess the value of antioxidant potential (AOP), antioxidant status (AOS) and thiobarbituric acid reactive substances (TBARS) and the cysteine protease inhibitor Cystatin C that plays a role in the processing of amyloid as clinical markers of AD in peripheral circulation and to find out the agreement limits of AOP and AOS as clinical laboratory tests. To do this, 21 severely demented patients fitting the DSM-IV diagnostic criteria for Alzheimer's type dementia as well as through minimental state examination were compared to 20 age-matching healthy controls with respect to their serum AOP, AOS, Cystatin C and TBARS levels. The under-curve area detected from ROC curves for TBARS, AOS, AOP and Cystatin C were 0.801, 0.622, 0.475 and 0.65 respectively. Altman and Bland analysis showed that the values obtained by the AOP assay were 0.0149-0.04664 with a mean of 0.03081 units higher than those values obtained via AOS assay, indicating a low level of agreement. In addition, Pearson's correlation testing showed a significant negative correlation between AOP and AOS (r=0.479, p

Anahtar Kelimeler:

Alzheimer's disease, serum oxidative stress marker, Cystatin C

Antioxidant Status, Lipid Peroxidation Products and Cystatin C as Potential Clinical Markers of Alzheimer's Disease in Systemic Circulation

Growing data suggest oxidative stress contributes to the pathogenesis of Alzheimer's disease (AD). The objective of this study was to assess the value of antioxidant potential (AOP), antioxidant status (AOS) and thiobarbituric acid reactive substances (TBARS) and the cysteine protease inhibitor Cystatin C that plays a role in the processing of amyloid as clinical markers of AD in peripheral circulation and to find out the agreement limits of AOP and AOS as clinical laboratory tests. To do this, 21 severely demented patients fitting the DSM-IV diagnostic criteria for Alzheimer's type dementia as well as through minimental state examination were compared to 20 age-matching healthy controls with respect to their serum AOP, AOS, Cystatin C and TBARS levels. The under-curve area detected from ROC curves for TBARS, AOS, AOP and Cystatin C were 0.801, 0.622, 0.475 and 0.65 respectively. Altman and Bland analysis showed that the values obtained by the AOP assay were 0.0149-0.04664 with a mean of 0.03081 units higher than those values obtained via AOS assay, indicating a low level of agreement. In addition, Pearson's correlation testing showed a significant negative correlation between AOP and AOS (r=0.479, p

Keywords:

Alzheimer's disease, serum oxidative stress marker, Cystatin C,

Turkish Journal of Medical Sciences-Cover

ISSN: 1300-0144
Yayın Aralığı: 6
Yayıncı: TÜBİTAK

Arşiv

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Antioxidant Status, Lipid Peroxidation Products and Cystatin C as Potential Clinical Markers of Alzheimer's Disease in Systemic Circulation

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