Amyloid Abeta40 CSF concentrations correlate to frontal lobe atrophy in frontotemporal dementia.
We wanted to further study amyloid Abeta protein alterations in non-AD neurodegenerative diseases. Cerebrospinal fluid concentrations of the amyloid Abeta protein with 40 (Abeta40) and 42 (Abeta42) amino acid residues were measured in eleven patients with frontotemporal dementia (FTD). Abeta40 and Abeta42 concentrations were related to the degree of frontal lobe atrophy as assessed with MRI volumetry. Abeta40 concentrations showed a statistically significant linear correlation with degree of frontal lobe atrophy (r = -0.77, p<0.02). Similar results have not been found in previous studies of CSF Abeta40 concentrations and atrophy in patients with AD which suggest that the role of Abeta40 differs between the pathological processes of FTD and AD.
Andersen
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C
Karolinska Institutet, NEUROTEC, Huddinge University Hospital, Stockholm, Sweden.
Jensen
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M
Lannfelt
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Lindau
M
M
Wahlund
L O
LO
D000368:Aged; D016229:Amyloid beta-Peptides / Q000134:cerebrospinal fluid*; D003704:Dementia / Q000134:cerebrospinal fluid* / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D005625:Frontal Lobe / Q000473:pathology*; D006801:Humans; D016014:Linear Models; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010446:Peptide Fragments / Q000134:cerebrospinal fluid*
D016229:Amyloid beta-Peptides; D010446:Peptide Fragments; C078592:amyloid beta-protein (1-40); C075222:amyloid beta-protein (1-42)