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Publication Detail
Primary Progressive Aphasia: Toward a Pathophysiological Synthesis.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Review
  • Authors:
    Ruksenaite J, Volkmer A, Jiang J, Johnson JC, Marshall CR, Warren JD, Hardy CJ
  • Publication date:
    04/02/2021
  • Pagination:
    7
  • Journal:
    Curr Neurol Neurosci Rep
  • Volume:
    21
  • Issue:
    3
  • Status:
    Published online
  • Country:
    United States
  • PII:
    10.1007/s11910-021-01097-z
  • Language:
    eng
  • Keywords:
    Alzheimer’s disease, Frontotemporal dementia, Logopenic aphasia, Physiology, Primary progressive aphasia, Progressive nonfluent aphasia, Semantic dementia
Abstract
PURPOSE OF REVIEW: The term primary progressive aphasia (PPA) refers to a diverse group of dementias that present with prominent and early problems with speech and language. They present considerable challenges to clinicians and researchers. RECENT FINDINGS: Here, we review critical issues around diagnosis of the three major PPA variants (semantic variant PPA, nonfluent/agrammatic variant PPA, logopenic variant PPA), as well as considering 'fragmentary' syndromes. We next consider issues around assessing disease stage, before discussing physiological phenotyping of proteinopathies across the PPA spectrum. We also review evidence for core central auditory impairments in PPA, outline critical challenges associated with treatment, discuss pathophysiological features of each major PPA variant, and conclude with thoughts on key challenges that remain to be addressed. New findings elucidating the pathophysiology of PPA represent a major step forward in our understanding of these diseases, with implications for diagnosis, care, management, and therapies.
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