18 F-flortaucipir uptake patterns in clinical subtypes of primary progressive aphasia.

Autor: Cho H; Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea., Kim HJ; Departments of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea., Choi JY; Department of Nuclear Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea; Division of RI-Convergence Research, Korea Institute Radiological and Medical Sciences, Seoul, South Korea., Ryu YH; Department of Nuclear Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea., Lee MS; Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea., Na DL; Departments of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea., Seo SW; Departments of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. Electronic address: sangwonseo@empas.com., Lyoo CH; Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: lyoochel@yuhs.ac.
Jazyk: angličtina
Zdroj: Neurobiology of aging [Neurobiol Aging] 2019 Mar; Vol. 75, pp. 187-197. Date of Electronic Publication: 2018 Nov 23.
DOI: 10.1016/j.neurobiolaging.2018.11.017
Abstrakt: We analyzed 18 F-flortaucipir uptake patterns and structural changes in patients with subtypes of primary progressive aphasia (PPA) using 18 F-flortaucipir positron emission tomography and volumetric magnetic resonance imaging. We enrolled 34 consecutive patients with PPA (10 nonfluent/agrammatic PPA [nfvPPA], 18 semantic variant PPA [svPPA], and 6 logopenic variant PPA [lvPPA], as well as 20 healthy controls, and 20 patients with Alzheimer's disease. 18 F-flortaucipir uptake was increased in the frontal cortex and underlying white matter, and subcortical nuclei in the 10 nfvPPA and 8 nfvPPA-amyloid-β (Aβ)- subgroup patients. In the svPPA patients (both the 13 svPPA-Aβ- and 5 svPPA-Aβ+), uptake generally increased in the widespread neocortex with left anterior temporal predominance. 18 F-flortaucipir uptake patterns in the 6 lvPPA and the 5 lvPPA-Aβ+ subgroup patients were similar to those seen in the patients with Alzheimer's disease with mild predominance in the left lateral temporal cortex. Cortical thinning in each PPA subtype corresponded with increased 18 F-flortaucipir uptake. 18 F-flortaucipir uptake patterns and cortical atrophy were distinct and corresponded to areas related to the specific language functions that are impaired in each subtype of PPA.
(Copyright © 2018 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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