Acta Neuropathologica

, Volume 128, Issue 6, pp 755–766 | Cite as

Primary age-related tauopathy (PART): a common pathology associated with human aging

  • John F. Crary
  • John Q. Trojanowski
  • Julie A. Schneider
  • Jose F. Abisambra
  • Erin L. Abner
  • Irina Alafuzoff
  • Steven E. Arnold
  • Johannes Attems
  • Thomas G. Beach
  • Eileen H. Bigio
  • Nigel J. Cairns
  • Dennis W. Dickson
  • Marla Gearing
  • Lea T. Grinberg
  • Patrick R. Hof
  • Bradley T. Hyman
  • Kurt Jellinger
  • Gregory A. Jicha
  • Gabor G. Kovacs
  • David S. Knopman
  • Julia Kofler
  • Walter A. Kukull
  • Ian R. Mackenzie
  • Eliezer Masliah
  • Ann McKee
  • Thomas J. Montine
  • Melissa E. Murray
  • Janna H. Neltner
  • Ismael Santa-Maria
  • William W. Seeley
  • Alberto Serrano-Pozo
  • Michael L. Shelanski
  • Thor Stein
  • Masaki Takao
  • Dietmar R. Thal
  • Jonathan B. Toledo
  • Juan C. Troncoso
  • Jean Paul Vonsattel
  • Charles L. White3rd
  • Thomas Wisniewski
  • Randall L. Woltjer
  • Masahito Yamada
  • Peter T. Nelson
Consensus Paper

Abstract

We recommend a new term, “primary age-related tauopathy” (PART), to describe a pathology that is commonly observed in the brains of aged individuals. Many autopsy studies have reported brains with neurofibrillary tangles (NFTs) that are indistinguishable from those of Alzheimer’s disease (AD), in the absence of amyloid (Aβ) plaques. For these “NFT+/Aβ−” brains, for which formal criteria for AD neuropathologic changes are not met, the NFTs are mostly restricted to structures in the medial temporal lobe, basal forebrain, brainstem, and olfactory areas (bulb and cortex). Symptoms in persons with PART usually range from normal to amnestic cognitive changes, with only a minority exhibiting profound impairment. Because cognitive impairment is often mild, existing clinicopathologic designations, such as “tangle-only dementia” and “tangle-predominant senile dementia”, are imprecise and not appropriate for most subjects. PART is almost universally detectable at autopsy among elderly individuals, yet this pathological process cannot be specifically identified pre-mortem at the present time. Improved biomarkers and tau imaging may enable diagnosis of PART in clinical settings in the future. Indeed, recent studies have identified a common biomarker profile consisting of temporal lobe atrophy and tauopathy without evidence of Aβ accumulation. For both researchers and clinicians, a revised nomenclature will raise awareness of this extremely common pathologic change while providing a conceptual foundation for future studies. Prior reports that have elucidated features of the pathologic entity we refer to as PART are discussed, and working neuropathological diagnostic criteria are proposed.

Keywords

TPSD TOD Braak Neuropathology Consensus 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • John F. Crary
    • 1
  • John Q. Trojanowski
    • 2
  • Julie A. Schneider
    • 3
  • Jose F. Abisambra
    • 4
  • Erin L. Abner
    • 5
  • Irina Alafuzoff
    • 6
  • Steven E. Arnold
    • 7
  • Johannes Attems
    • 8
  • Thomas G. Beach
    • 9
  • Eileen H. Bigio
    • 10
  • Nigel J. Cairns
    • 11
  • Dennis W. Dickson
    • 12
  • Marla Gearing
    • 13
  • Lea T. Grinberg
    • 14
    • 15
  • Patrick R. Hof
    • 16
  • Bradley T. Hyman
    • 17
  • Kurt Jellinger
    • 18
  • Gregory A. Jicha
    • 19
  • Gabor G. Kovacs
    • 20
  • David S. Knopman
    • 21
  • Julia Kofler
    • 22
  • Walter A. Kukull
    • 23
  • Ian R. Mackenzie
    • 24
  • Eliezer Masliah
    • 25
  • Ann McKee
    • 26
  • Thomas J. Montine
    • 27
  • Melissa E. Murray
    • 12
  • Janna H. Neltner
    • 28
  • Ismael Santa-Maria
    • 1
  • William W. Seeley
    • 29
  • Alberto Serrano-Pozo
    • 30
  • Michael L. Shelanski
    • 1
  • Thor Stein
    • 31
  • Masaki Takao
    • 32
  • Dietmar R. Thal
    • 33
  • Jonathan B. Toledo
    • 2
  • Juan C. Troncoso
    • 34
  • Jean Paul Vonsattel
    • 1
  • Charles L. White3rd
    • 35
  • Thomas Wisniewski
    • 36
  • Randall L. Woltjer
    • 37
  • Masahito Yamada
    • 38
  • Peter T. Nelson
    • 39
  1. 1.Department of Pathology and Cell Biology and the Taub Institute for Research on Alzheimer’s Disease and the Aging BrainColumbia University Medical CenterNew YorkUSA
  2. 2.Department of Pathology, Division of NeuropathologyUniversity of PennsylvaniaPhiladelphiaUSA
  3. 3.Departments of Pathology (Neuropathology) and Neurological SciencesRush University Medical CenterChicagoUSA
  4. 4.Department of Physiology and Sanders-Brown Center on AgingUniversity of KentuckyLexingtonUSA
  5. 5.Department of Public Health and Sanders-Brown Center on AgingUniversity of KentuckyLexingtonUSA
  6. 6.Department of Immunology, Genetics and PathologyUppsala UniversityUppsalaSweden
  7. 7.Departments of Psychiatry and NeurologyUniversity of PennsylvaniaPhiladelphiaUSA
  8. 8.Institute for Ageing and Health, Newcastle UniversityNewcastle upon TyneUK
  9. 9.Civin Laboratory for NeuropathologyBanner Sun Health Research InstituteSun CityUSA
  10. 10.Department of Pathology (Neuropathology), Northwestern Cognitive Neurology and Alzheimer Disease CenterNorthwestern University Feinberg School of MedicineChicagoUSA
  11. 11.Department of Pathology and ImmunologyWashington University School of MedicineSt. LouisUSA
  12. 12.Department of NeuroscienceMayo ClinicJacksonvilleUSA
  13. 13.Department of Pathology and Laboratory Medicine (Neuropathology)Emory University School of MedicineAtlantaUSA
  14. 14.Departments of Neurology and PathologyUCSan FranciscoUSA
  15. 15.Department of PathologyUniversity of Sao PauloSao PauloBrazil
  16. 16.Fishberg Department of Neuroscience and Friedman Brain InstituteIcahn School of Medicine at Mount SinaiNew YorkUSA
  17. 17.Department of NeurologyHarvard Medical School and Massachusetts General HospitalCharlestownUSA
  18. 18.Institute of Clinical NeurobiologyViennaAustria
  19. 19.Department of Neurology and the Sanders-Brown Center on AgingUniversity of KentuckyLexingtonUSA
  20. 20.Institute of Neurology, Medical University ViennaViennaAustria
  21. 21.Department of NeurologyMayo ClinicRochesterUSA
  22. 22.Department of Pathology (Neuropathology)University of Pittsburgh Medical CenterPittsburghUSA
  23. 23.Department of EpidemiologyUniversity of WashingtonSeattleUSA
  24. 24.Department of PathologyUniversity of British ColumbiaVancouverCanada
  25. 25.Departments of Neurosciences and PathologyUniversity of CaliforniaSan Diego, La JollaUSA
  26. 26.Department of Pathology (Neuropathology)Boston UniversityBostonUSA
  27. 27.Department of PathologyUniversity of WashingtonSeattleUSA
  28. 28.Department of PathologyUniversity of KentuckyLexingtonUSA
  29. 29.Departments of Neurology and PathologyUniversity of CaliforniaSan FranciscoUSA
  30. 30.Department of NeurologyUniversity of Iowa Hospitals and ClinicsIowa cityUSA
  31. 31.Department of Pathology (Neuropathology)VA Medical Center and Boston University School of MedicineBostonUSA
  32. 32.Department of NeuropathologyTokyo Metropolitan Geriatric HospitalTokyoJapan
  33. 33.Laboratory of NeuropathologyUniversity of UlmUlmGermany
  34. 34.Department of Pathology and Laboratory MedicineInstitute on Aging, Center for Neurodegenerative Disease Research, University of Pennsylvania Perelman School of MedicinePhiladelphiaUSA
  35. 35.Department of Pathology (Neuropathology)University of Texas Southwestern Medical SchoolDallasUSA
  36. 36.Departments of Neurology, Pathology and PsychiatryNew York University School of MedicineNew YorkUSA
  37. 37.Department of Pathology L113Oregon Health Sciences UniversityPortlandUSA
  38. 38.Departments of Neurology & Neurobiology of AgingKanazawa University Graduate School of Medical SciencesKanazawaJapan
  39. 39.Department of Pathology (Neuropathology) and Sanders-Brown Center on AgingUniversity of KentuckyLexingtonUSA

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