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Progressive supranuclear palsy.
1Department of Neurology, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey.
Seminars in Neurology
|June 26, 2014
Summary
Progressive supranuclear palsy (PSP) is a tau protein disorder with varied symptoms, often mimicking Parkinson disease. While diagnosis is clinical, research explores imaging and fluid biomarkers for early detection and effective treatments.
Area of Science:
- Neuroscience
- Neurology
- Pathology
Background:
- Progressive supranuclear palsy (PSP) is characterized by tau protein aggregation.
- The clinical presentation of PSP is diverse, with a Parkinson disease-like phenotype occurring in one-third of cases.
- Over half of PSP patients display classic symptoms including bradykinesia, postural instability, rigidity, cognitive changes, and vertical gaze palsy.
Purpose of the Study:
- To review the current understanding of Progressive Supranuclear Palsy (PSP).
- To highlight the expanding clinical spectrum and diagnostic approaches for PSP.
- To summarize treatment strategies and research into neuroprotective therapies for PSP.
Main Methods:
- Review of existing literature on Progressive Supranuclear Palsy (PSP).
- Analysis of clinical diagnostic criteria and rating scales for PSP.
- Evaluation of current and emerging diagnostic tools, including MRI and CSF analysis.
- Assessment of therapeutic interventions and research findings for PSP.
Main Results:
- PSP presents a broad clinical spectrum, with a significant proportion resembling Parkinson disease.
- Established clinical criteria offer high specificity for PSP diagnosis.
- While neuroprotective drug trials have been largely unsuccessful, supportive care remains primary.
- Coenzyme Q-10 and levodopa show limited symptomatic benefits in PSP patients.
Conclusions:
- PSP is a sporadic tauopathy with a wide clinical range and specific diagnostic tools.
- Early diagnosis is crucial, with imaging and CSF markers showing potential.
- Current treatments for PSP are mainly supportive, emphasizing the need for novel therapeutic strategies.
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