|
KMID : 1009020230210040758
|
|
Clinical Psychopharmacology and Neuroscience
2023 Volume.21 No. 4 p.758 ~ p.768
|
|
|
A Preliminary Study on the Potential Protective Role of the Antioxidative Stress Markers of Cognitive Impairment: Glutathione and Glutathione Reductase
|
|
Park Sang-A
Byeon Gi-Hwan
Jhoo Jin-Hyeong
Kim Hyung-Chun
Lim Myoung-Nam
Jang Jae-Won
Bae Jong-Bin
Han Ji-Won
Kim Tae-Hui
Kwak Kyung-Phil
Kim Bong-Jo
Kim Shin-Gyeom
Kim Jeong-Lan
Moon Seok-Woo
Park Joon-Hyuk
Ryu Seung-Ho
Song Che-Ryn
Lee Dong-Woo
Lee Seok-Bum
Lee Jung-Jae
Lee Dong-Young
Kim Ki-Woong
|
|
|
Abstract
|
|
|
Objective: To investigate the relationship between reduced glutathione (GSH), a key molecule of the antioxidant defense system in the blood, and glutathione reductase (GR), which reduces oxidized glutathione (glutathione disulfide [GSSG]) to GSH and maintains the redox balance, with the prevalence of Alzheimer’s dementia and cognitive decline.
Methods: In all, 20 participants with Alzheimer’s dementia who completed the third follow-up clinical evaluation over 6 years were selected, and 20 participants with normal cognition were selected after age and sex matching. The GSH and GR concentrations were the independent variables. Clinical diagnosis and neurocognitive test scores were the dependent variables indicating cognitive status.
Results: The higher the level of GR, the greater the possibility of having normal cognition than of developing Alzheimer’s dementia. Additionally, the higher the level of GR, the higher the neurocognitive test scores. However, this association was not significant for GSH. After 6 years, the conversion rate from normal cognition to cognitive impairment was significantly higher in the lower 50th percentile of the GR group than in the upper 50th percentile.
Conclusion: The higher the GR, the lower the prevalence of Alzheimer’s dementia and incidence of cognitive impairment and the higher the cognitive test scores. Therefore, GR is a potential protective biomarker against Alzheimer’s dementia and cognitive decline.
|
|
|
KEYWORD
|
|
|
Alzheimer dementia, Oxidative stress, Biomarker
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|