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Review

The diagnosis of progressive supranuclear palsy: current opinions and challenges

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Pages 603-616 | Received 16 Apr 2018, Accepted 12 Jun 2018, Published online: 28 Jun 2018
 

ABSTRACT

Introduction: Progressive supranuclear palsy (PSP) is associated with microtubule-associated protein tau dysfunction. Originally thought to result in a syndrome of atypical Parkinsonism, vertical supranuclear gaze palsy, and cognitive impairment, several additional phenotypic manifestations of PSP pathology have been described over the last 20 years. Furthermore, prototypical PSP features may develop late, making early diagnosis challenging.

Areas covered: An in-depth view of emerging knowledge in the field of PSP. Advances in clinicopathologic correlation, blood, cerebrospinal, and more importantly neuroimaging biomarkers are discussed in light of the 2017 PSP diagnostic criteria by the Movement Disorders Society Study Group. Discoveries related to molecular pathogenesis have enabled development of disease-modifying therapies for PSP, many of which are currently under investigation.

Expert commentary: Despite remarkable growth in our knowledge of tauopathies like PSP, early and accurate clinical prediction of PSP neuropathology remains challenging. Clinical phenotypes overlap, and biomarkers are nonspecific. There is a pressing need for disease-specific biomarkers that enable timely identification of patients and biomarker-driven investigation of disease-modifying therapies.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Reviewer disclosures

Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.

Additional information

Funding

This paper was not funded.

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