Amyloid plaque imaging in vivo: current achievement and future prospects

Article

Abstract

Introduction

Alzheimer’s disease (AD) is a very complex neurodegenerative disorder, the exact cause of which is still not known. The major histopathological features, amyloid plaques and neurofibrillary tangles, already described by Alois Alzheimer, have been the focus in research for decades. Despite a probable whole cascade of events in the brain leading to impairment of cognition, amyloid is still the target for diagnosis and treatment.

Discussion

The rapid development of molecular imaging techniques now allows imaging of amyloid plaques in vivo in Alzheimer patients by PET amyloid ligands such as Pittsburgh compound B (PIB). Studies so far have revealed high 11C-PIB retention in brain at prodromal stages of AD and a possibility to discriminate AD from other dementia disorders by 11C-PIB. Ongoing studies are focussing to understand the relationship between brain and CSF amyloid processes and cognitive processes.

Conclusion

In vivo imaging of amyloid will be important for early diagnosis and evaluation of new anti-amyloid therapies in AD.

Keywords

Positron emission tomography (PET) Amyloid PIB Alzheimer’s disease Diagnostic marker 

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Karolinska Institutet, Department of Neurobiology, Care Sciences and Society, Division of Alzheimer NeurobiologyKarolinska University Hospital HuddingeStockholmSweden
  2. 2.Department of Geriatric MedicineKarolinska University Hospital HuddingeStockholmSweden

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