Blood-brain barrier permeability of the demented elderly as studied by cerebrospinal fluid-serum albumin ratio.
Blood-brain barrier (BBB) permeability in the demented elderly was investigated by use of the ratio of cerebrospinal fluid (CSF) albumin (Alb) to serum Alb (Q-Alb). Subjects with Alzheimer type dementia (AD), vascular dementia (VD), and controls without dementia (C) were investigated. Patients with AD were divided into mild AD (mAD) and severe AD (sAD) by the use of Hasegawa's dementia scale. The Q-Alb and the ratio of CSF alpha1-antichymotrypsin (ACT) to serum ACT (Q-ACT) were evaluated. Correlations between Q-Alb and Q-ACT were compared among the groups (mAD, sAD, VD, C). Correlations between Q-Alb and major monoaminergic neurochemicals were also analyzed. It was suggested that BBB permeability was preserved in C group, while it was impaired in the patients with VD. In AD group it appeared to be rather well preserved in mAD, while it seemed to be disturbed in a graded manner according to the progression of dementia.
Wada
H
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Department of Geriatrics, Faculty of Medicine, University of Tokyo.
D000368:Aged; D000369:Aged, 80 and over; D000418:Albumins / Q000134:cerebrospinal fluid*; D000544:Alzheimer Disease / Q000097:blood / Q000134:cerebrospinal fluid; D001812:Blood-Brain Barrier / Q000502:physiology*; D016022:Case-Control Studies; D003704:Dementia / Q000097:blood* / Q000134:cerebrospinal fluid*; D015140:Dementia, Vascular / Q000097:blood / Q000134:cerebrospinal fluid; D005260:Female; D006719:Homovanillic Acid / Q000134:cerebrospinal fluid; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid; D008297:Male; D008734:Methoxyhydroxyphenylglycol / Q000134:cerebrospinal fluid; D008875:Middle Aged; D012709:Serum Albumin / Q000378:metabolism*; D000514:alpha 1-Antichymotrypsin / Q000097:blood / Q000134:cerebrospinal fluid
D000418:Albumins; D012709:Serum Albumin; D000514:alpha 1-Antichymotrypsin; D008734:Methoxyhydroxyphenylglycol; D006897:Hydroxyindoleacetic Acid; D006719:Homovanillic Acid