The purpose of this study is to find out the difference in genetic test results between Alzheimer's dementia patients and healthy subjects. The investigators want to identify genes that are importantly related to Alzheimer's dementia.
Study Type
OBSERVATIONAL
Enrollment
20
genetic analysis
5cc blood collection for genetic testing
Time frame: Baseline
Measurement of Korean version of mini-mental state examination (K-MMSE)
K-MMSE is a measurement of cognitive level. Any score of 24 or more (out of 30) indicates a normal cognition. Below this, scores can indicate severe(≤9 points), moderate (10-18 points) or mild (19-23 points) cognitive impairment(MCI). The raw score may also need to be corrected for educational attainment and age.
Time frame: screening, Baseline
Measurement of Clinical Dementia Rating (CDR)
CDR is a rating scale for staging patients diagnosed with dementia. The CDR evaluates cognitive, behavioral and functional aspects of Alzheimer disease and other dementias. It is calculated on the basis of testing six different cognitive and behavioral domains such as memory, orientation, judgment and problem solving, community affairs, home and hobbies performance, and personal care. The CDR is based on a scale of 0-3: no dementia (CDR = 0), questionable dementia (CDR = 0.5), MCI (CDR = 1), moderate cognitive impairment (CDR = 2) and severe cognitive impairment (CDR = 3)
Time frame: screening, Baseline
Measurement of Geriatric Depression Scale (GDSd)
GDS is a 30-item self-report assessment used to identify depression in the elderly. One point is assigned to each answer and the cumulative score is rated on a scoring grid. The grid sets a range of 0-9 as "normal", "10-19" as "mildly depressed", and 20-30 as "severely depressed".
Time frame: Baseline
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