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- W2081682201 abstract "BACKGROUND: Differential diagnosis between Frontotemporal Dementia (FTD), Corticobasal Syndrome (CBS), Progressive Supranuclear Palsy Syndrome (PSP), FTD with motor neuron disease (FTD-MND) is often challenging, because of the occurrence of atypical cases. Autopsy series have identified Alzheimer Disease (AD) pathology in a consistent percentage of patients with atypical dementias. It has been demonstrated that Cerebrospinal Fluid (CSF) Tau/Aβ42 dosage is a reliable marker for AD. OBJECTIVE: To evaluate the presence and percentage of CSF AD-like patterns (high CSF tau/Aβ42 ratio) in patients with atypical dementias in order to identify an ongoing AD neurodegenerative process. METHODS: One hundred seventy two consecutive patients fulfilling current clinical criteria for behavioural variant FTD (bvFTD, n = 73), agrammatic variant of Primary Progressive Aphasia (avPPA, n = 19), semantic variant of PPA (svPPA, n = 12), FTD-MND (n = 5), CBS (n = 42), PSP (n = 21) were recruited and underwent CSF analysis. CSF AD-like and non AD (nAD-like) patterns were identified. RESULTS: CSF AD-like pattern was reported in 6 out of 73 cases (8.2%) in the bvFTD group, in 3 out of 19 (15.8%) in the avPPA group, and in 7 out of 42 (16.7%) in the CBS group. One out of 12 (8.3%) of svPPA had CSF AD-like pattern. None of patients FTD-MND and PSP had CSF AD-like pattern. No differences in demographic characteristics were detected between subgroups in each phenotype. CONCLUSIONS: Our findings convey that the CSF tau/ Aβ42 ratio could be found in a proportion of cases with clinical bvFTD, avPPA and CBD. Detecting anon-going AD pathological process in atypical dementias has several implications for defining distinctive therapeutic approaches, guiding genetic screening and helping in patients’ selection in future clinical trials." @default.
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- W2081682201 date "2012-01-01" @default.
- W2081682201 modified "2023-10-17" @default.
- W2081682201 title "Prevalence of cerebrospinal fluid Alzheimer disease-like pattern in atypical dementias" @default.
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- W2081682201 doi "https://doi.org/10.4236/aad.2012.13006" @default.
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