Cited by 2,992Dementia and Cognitive Impairment ResearchNeurological Disorders and TreatmentsAlzheimer's disease research and treatments

National Institute on Aging–Alzheimer’s Association guidelines for the neuropathologic assessment of Alzheimer’s disease: a practical approach

Open access
Montine, Thomas J., Phelps, Creighton H., Beach, Thomas G., Bigio, Eileen H., Cairns, Nigel J., Dickson, Dennis W., Duyckaerts, Charles, Frosch, Matthew P. +8 more·2012·Acta Neuropathologica

Abstract

We present a practical guide for the implementation of recently revised National Institute on Aging-Alzheimer's Association guidelines for the neuropathologic assessment of Alzheimer's disease (AD). Major revisions from previous consensus criteria are: (1) recognition that AD neuropathologic changes may occur in the apparent absence of cognitive impairment, (2) an "ABC" score for AD neuropathologic change that incorporates histopathologic assessments of amyloid β deposits (A), staging of neurofibrillary tangles (B), and scoring of neuritic plaques (C), and (3) more detailed approaches for assessing commonly co-morbid conditions such as Lewy body disease, vascular brain injury, hippocampal sclerosis, and TAR DNA binding protein (TDP)-43 immunoreactive inclusions. Recommendations also are made for the minimum sampling of brain, preferred staining methods with acceptable alternatives, reporting of results, and clinico-pathologic correlations.

Integrity signals

Registry

Crossref · 10.1007/s00401-011-0910-3

Cites

66 of 66 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

27 of 65 cited sources checked · 12 supported · 0 flagged · accuracy not yet measured

  • Premisecitation

    AD neuropathologic changes may occur in the apparent absence of cognitive impairment.

    “recognition that AD neuropathologic changes may occur in the apparent absence of cognitive impairment”
    • Also stated in: § CLINICO-PATHOLOGIC CORRELATION · plain
      “Similar neuropathologic changes, albeit usually at lower levels, also occur in individuals who did not show cognitive or behavioral impairments during life [54].”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [54] Sperling RA, Aisen PS, Beckett LA et al (2011) Toward defining the preclinical stages of Alzheimer’s disease: Recommendations from the National Institute on Aging-Alzheimer’s Association workgroups on diagnostic guidelines for Alzheimer’s disease. Alzheimers Dement 7:280–292 source
  • Premisecitation

    Greater sensitivity for detecting Lewy bodies can be achieved with immunohistochemistry for α-synuclein compared to H&E.

    “LBs may be detected in neurons of medulla, pons and midbrain with hematoxylin and eosin (H&E)-stained sections; however, greater sensitivity can be achieved with immunohistochemistry for α-synuclein and this approach is strongly preferred [3,4,13].”
    Quote in the paperSubstantial claim2 of 3 sources checked
    • cites [3] Alafuzoff I, Parkkinen L, Al-Sarraj S et al (2008) Assessment of alpha-synuclein pathology: a study of the BrainNet Europe Consortium. J Neuropathol Exp Neurol 67:125–143 source

      The Introduction (p. 125) says consensus guidelines recommend α-synuclein immunohistochemistry for synucleinopathies, supporting the preference for that approach. The paper’s staining results and Discussion assess variation among immunohistochemical methods, but do not establish that immunohistochemistry detects Lewy bodies more sensitively than H&E; searches for H&E and hematoxylin–eosin found no such comparison. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
    • cites [4] Alafuzoff I, Pikkarainen M, Al-Sarraj S et al (2006) Interlaboratory comparison of assessments of Alzheimer disease-related lesions: a study of the BrainNet Europe Consortium. J Neuropathol Exp Neurol 65:740–757 source
    • cites [13] Beach TG, White CL, Hamilton RL et al (2008) Evaluation of alpha-synuclein immunohistochemical methods used by invited experts. Acta Neuropathol 116:277–288 source

      The Introduction (page unavailable) calls α-synuclein immunohistochemistry the method of choice for diagnosing Lewy body disorders, supporting its preferred use. The paper compares immunohistochemical methods with one another, however, and does not establish that they detect Lewy bodies more sensitively than H&E staining. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
  • Premisecitation

    Multiple MVLs in standard sections of brain are associated with increased likelihood of cognitive impairment or dementia.

    “one MVL identified in standard sections of brain (Table 1 regions shaded green) is of unclear relationship to cognitive function, while multiple MVLs in these regions are associated with increased likelihood of cognitive impairment or dementia [24,52,62].”
    Quote in the paperSubstantial claim1 of 3 sources checked
    • cites [24] Gorelick PB, Scuteri A, Black SE et al (2011) Vascular contributions to cognitive impairment and dementia: a statement for healthcare professionals from the American Heart Association/American Stroke Association. Stroke 42:2672–2713 source

      Section 3.2 (page not available in our copy) reports that some studies associate multiple microscopic infarcts with dementia, even after accounting for macroscopic infarcts. It does not establish the claim for MVLs generally or specify that the lesions were identified in standard brain sections. (LLM, conf=0.82)

      Experimental — accuracy not yet measured
    • cites [52] Sonnen JA, Larson EB, Crane PK et al (2007) Pathological correlates of dementia in a longitudinal, population-based sample of aging. Ann Neurol 62:406–413 source
    • cites [62] White L (2009) Brain lesions at autopsy in older Japanese-American men as related to cognitive impairment and dementia in the final years of life: a summary report from the Honolulu-Asia aging study. J Alzheimers Dis 18:713–725 source
  • Premisecitation

    AD neuropathologic change can predate onset of symptoms by years.

    “Clinico-pathologic correlations for individuals without cognitive impairment should indicate that it is possible for AD neuropathologic change to predate onset of symptoms by years [54].”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [54] Sperling RA, Aisen PS, Beckett LA et al (2011) Toward defining the preclinical stages of Alzheimer’s disease: Recommendations from the National Institute on Aging-Alzheimer’s Association workgroups on diagnostic guidelines for Alzheimer’s disease. Alzheimers Dement 7:280–292 source
  • Premisecitation

    One MVL identified in standard sections of brain is of unclear relationship to cognitive function.

    “one MVL identified in standard sections of brain (Table 1 regions shaded green) is of unclear relationship to cognitive function, while multiple MVLs in these regions are associated with increased likelihood of cognitive impairment or dementia [24,52,62].”
    Quote in the paperSubstantial claim1 of 3 sources checked
    • cites [24] Gorelick PB, Scuteri A, Black SE et al (2011) Vascular contributions to cognitive impairment and dementia: a statement for healthcare professionals from the American Heart Association/American Stroke Association. Stroke 42:2672–2713 source

      Section 3.2 (page unavailable) says the number of infarcts needed for cognitive impairment is difficult to determine and reports that multiple microscopic infarcts may be related to dementia. It does not specifically assess the cognitive significance of one MVL identified in standard brain sections. (LLM, conf=0.82)

      Experimental — accuracy not yet measured
    • cites [52] Sonnen JA, Larson EB, Crane PK et al (2007) Pathological correlates of dementia in a longitudinal, population-based sample of aging. Ann Neurol 62:406–413 source
    • cites [62] White L (2009) Brain lesions at autopsy in older Japanese-American men as related to cognitive impairment and dementia in the final years of life: a summary report from the Honolulu-Asia aging study. J Alzheimers Dis 18:713–725 source
  • May combine two claims. 2
  • Classified as probably not a substantial claim. 1
  • May combine two claims.

    Premisecitation

    Relatively isolated HS in very old individuals is associated with TDP-43-immunoreactive inclusions and with cognitive impairment.

    “Relatively isolated HS may occur in very old individuals, and in this context it is associated with TDP-43-immunoreactive inclusions and with cognitive impairment [45,47].”
    Quote in the paperNot a substantial claim2 of 2 sources checked
    • cites [45] Nelson PT, Abner EL, Schmitt FA et al (2010) Modeling the association between 43 different clinical and pathological variables and the severity of cognitive impairment in a large autopsy cohort of elderly persons. Brain Pathol 20:66–79 source

      The Discussion reports that hippocampal sclerosis (HS) was associated with lower MMSE scores and states that HS is associated with TDP-43 proteinopathy. The Results describe TDP-43-positive inclusions. Neither passage establishes these associations specifically for relatively isolated HS in very old individuals. (LLM, conf=0.86)

      Experimental — accuracy not yet measured
    • cites [47] Nelson PT, Schmitt FA, Lin Y et al (2011) Hippocampal sclerosis in advanced age: clinical and pathological features. Brain 134:1506–1518 source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    LBD occurs frequently in the olfactory bulb in older adults.

    “Although not part of this classification scheme, it is important to realize that LBD also occurs frequently in the olfactory bulb in older adults and should be sampled when possible [20].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [20] Del Tredici K, Rub U, De Vos RA et al (2002) Where does Parkinson disease pathology begin in the brain? J Neuropathol Exp Neurol 61:413–426 source
  • May combine two claims.

    Premisecitation

    Neuritic plaques appear closely associated with neuronal injury and are characterized by dystrophic neurites that frequently have phospho-tau immunoreactivity.

    “A subset of senile plaques called neuritic plaques appear closely associated with neuronal injury and are characterized by the occurrence of dystrophic neurites that frequently have phospho-tau immunoreactivity [19,36,37,55].”
    Quote in the paperNot a substantial claim0 of 4 sources checked
    • cites [19] DeKosky ST, Scheff SW (1990) Synapse loss in frontal cortex biopsies in Alzheimer’s disease: correlation with cognitive severity. Ann Neurol 27:457–464 source
    • cites [36] Masliah E, Mallory M, Deerinck T et al (1993) Re-evaluation of the structural organization of neuritic plaques in Alzheimer’s disease. J Neuropathol Exp Neurol 52:619–632 source
    • cites [37] Masliah E, Terry RD, Mallory M et al (1990) Diffuse plaques do not accentuate synapse loss in Alzheimer’s disease. Am J Pathol 137:1293–1297
    • cites [55] Terry RD, Masliah E, Salmon DP et al (1991) Physical basis of cognitive alterations in Alzheimer’s disease: synapse loss is the major correlate of cognitive impairment. Ann Neurol 30:572–580 source
3 of 3
  • The paper relies on this without support.

    Many other neurodegenerative disorders can cause dementia and may be co-morbid with AD neuropathologic change, especially in the elderly.

    “There are many other neurodegenerative disorders that can cause dementia in addition to those discussed here, and any may be co-morbid with AD neuropathologic change, especially in the elderly.”
  • The paper relies on this without support.

    Multiple diseases in the cerebrum can conspire to worsen cognitive symptoms.

    “Multiple diseases in cerebrum can conspire to worsen cognitive symptoms; however, it often is difficult to judge the extent to which each disease observed at autopsy may have contributed to a given patient’s cognitive state.”
  • The paper relies on this without support.

    Abnormal neuropil and neuronal cytoplasmic α-synuclein immunoreactivity are usually present with Lewy bodies but will not be apparent by H&E; in some instances, these changes occur in the absence of Lewy bodies.

    “Abnormal neuropil and neuronal cytoplasmic α-synuclein immunoreactivity are usually present with LBs but will not be apparent by H&E; in some instances, these changes occur in the absence of LBs.”
  • The paper relies on this without support.

    Diffuse white matter injury is a form of VBI but it is more difficult to judge objectively and is not specific to VBI.

    “Diffuse white matter injury is a form of VBI but it is more difficult to judge objectively and is not specific to VBI.”
  • The paper relies on this without support.

    Hippocampal sclerosis can be observed in the context of AD neuropathologic change, FTLD, and VBI, likely reflecting a heterogeneous etiology.

    “HS can be observed in the context of AD neuropathologic change, frontotemporal lobar degeneration (FTLD), and VBI, likely reflecting a heterogeneous etiology.”
  • The paper relies on this without support.

    Hippocampal sclerosis can be focal, so its absence in the recommended screening section does not rule out the possibility of HS elsewhere in the hippocampal formation.

    “HS can be focal, thus its absence in the recommended screening section does not rule out the possibility of HS elsewhere in the hippocampal formation.”
  • The paper relies on this without support.

    Hippocampal sclerosis can occur in several different diseases and has varying clinical implications in different settings.

    “Clinico-pathological correlations need to recognize that HS can occur in several different diseases and has varying clinical implications in different settings.”
7 of 7

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The new NIA criteria use the same combination of moderate or frequent neuritic plaques and Braak stage III-VI as the minimum lesion density necessary for attributing the cause of dementia to AD.

    “The new NIA criteria use the same combination of NPs and Braak stage as the minimum lesion density necessary for attributing the cause of dementia to AD (39, 40).”

    From Accuracy of the Clinical Diagnosis of Alzheimer Disease at National Institute on Aging Alzheimer Disease Centers, 2005–2010 (2012) · cites this paper as [40]

    The Classification section says the new criteria use Braak stage and neuritic-plaque score, but also require an Aβ-plaque score as part of the ABC score. The Reporting section says intermediate or high AD neuropathologic change can adequately explain dementia; the passages do not establish moderate or frequent neuritic plaques plus Braak stage III–VI as the minimum sufficient combination. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The definitive diagnosis of Alzheimer's disease requires microscopic examination of multiple brain regions employing staining methods that can detect Alzheimer type neuropathologic change, with diagnosis based upon the morphology and density of lesions and their topographic distribution.

    “The definitive diagnosis of AD requires microscopic examination of multiple brain regions employing staining methods that can detect Alzheimer type neuropathologic change [24], with diagnosis based upon the morphology and density of lesions and their topographic distribution.”

    From The neuropathological diagnosis of Alzheimer's disease (2019) · cites this paper as [24]

  • Nearly one third of patients with pathological findings of high likelihood Alzheimer's disease were thought to have other disorders, and 3% were considered clinically normal at the time of their last clinical exam.

    “This finding is highlighted by the fact that nearly one third of patients with pathological findings of high likelihood Alzheimer’s disease [24] were thought to other disorders, and 3% were considered clinically normal at the time of their last clinical exam (Table 2).”

    From The neuropathological diagnosis of Alzheimer's disease (2019) · cites this paper as [24]

  • Both Aβ and paired helical filament (PHF) tau deposits are required to fulfill neuropathologic criteria for AD.

    “However, both Aβ and paired helical filament (PHF) tau deposits are required to fulfill neuropathologic criteria for AD [105,106]”
  • Autopsy analyses classified the level of ADNC from "none" to "high" using an established scoring system when available.

    “Autopsy analyses classified the level of ADNC from “none” to “high” using an established scoring system when available.”

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Authors
Montine, T. J., Phelps, C. H., Beach, T. G., Bigio, E. H., Cairns, N. J., Dickson, D. W., Duyckaerts, C., Frosch, M. P., Masliah, E., Mirra, S. S., Nelson, P. T., Schneider, J. A., Thal, D. R., Trojanowski, J. Q., Vinters, H. V., & Hyman, B. T.
Affiliations
  • University of Washington (US)
  • National Institutes of Health (US)
  • Banner Sun Health Research Institute (US)
  • Northwestern University (US)
  • Washington University in St. Louis (US)
  • Mayo Clinic (US)
  • Pitié-Salpêtrière Hospital (FR)
  • Harvard University (US)
  • University of California San Diego (US)
  • SUNY Downstate Health Sciences University (US)
  • University of Kentucky (US)
  • Rush University Medical Center (US)
  • Universität Ulm (DE)
  • University of Pennsylvania (US)
  • University of California, Los Angeles (US)
Corresponding author
Montine, Thomas J.
Venue
Acta Neuropathologica
Published
2011-11-20
Volume
123
Issue
1
Pages
1-11
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2128228199
Cited by
2,992
References
66
Citations by year
2026: 172 · 2025: 289 · 2024: 336 · 2023: 259 · 2022: 296 · 2021: 262 · 2020: 244 · 2019: 187 · 2018: 164 · 2017: 146 · 2016: 141 · 2015: 135 · 2014: 92 · 2013: 69 · 2012: 46
FWCI
35.90
Type
journal article
Language
en
Open access
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (submittedVersion)
  • PubMed Central (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
Alzheimer's disease, amyloid-beta deposition, neurofibrillary tangles, neuritic plaques, ABC score, Lewy body disease, vascular brain injury, hippocampal sclerosis
MeSH terms
Alzheimer Disease, Brain, Cerebrovascular Disorders

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