期刊
CURRENT NEUROLOGY AND NEUROSCIENCE REPORTS
卷 13, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1007/s11910-013-0396-6
关键词
Primary progressive aphasia; Logopenic variant of primaryprogressive aphasia; Nonfluent/agrammatic variant of primary progressive aphasia; Alzheimer's disease
资金
- National Health and Medical Research Council of Australia
Logopenic progressive aphasia is the most recently described clinical variant of primary progressive aphasia (PPA), defined by impairment of lexical retrieval and sentence repetition. Unlike other PPA variants, the logopenic variant of PPA (lv-PPA) is commonly associated with Alzheimer's disease (AD), a fact that is relevant to the selection of patients for clinical trials and disease-modifying therapies. Despite the straightforward definition and coherent pathological association, the existence of lv-PPA has been challenged, as its distinction from AD or other PPAvariants can be difficult. Despite these issues, lv-PPA patients display characteristic linguistic deficits, a pattern of brain atrophy, and possibly genetic susceptibility, which warrant considering this variant as a discrete AD endophenotype. More specific clinical and anatomical markers can strengthen the consistency of this syndrome.
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