Cited by 179Functional Brain Connectivity StudiesDementia and Cognitive Impairment ResearchAlzheimer's disease research and treatments

Impaired default network functional connectivity in autosomal dominant Alzheimer disease

Open access
Chhatwal, Jasmeer P., Schultz, Aaron P., Johnson, Keith, Benzinger, Tammie L.S., Jack, Clifford, Ances, Beau M., Sullivan, Caroline A., Salloway, Stephen P. +19 more·2013·Neurology

Abstract

OBJECTIVE: To investigate default mode network (DMN) functional connectivity MRI (fcMRI) in a large cross-sectional cohort of subjects from families harboring pathogenic presenilin-1 (PSEN1), presenilin-2 (PSEN2), and amyloid precursor protein (APP) mutations participating in the Dominantly Inherited Alzheimer Network. METHODS: Eighty-three mutation carriers and 37 asymptomatic noncarriers from the same families underwent fMRI during resting state at 8 centers in the United States, United Kingdom, and Australia. Using group-independent component analysis, fcMRI was compared using mutation status and Clinical Dementia Rating to stratify groups, and related to each participant's estimated years from expected symptom onset (eYO). RESULTS: We observed significantly decreased DMN fcMRI in mutation carriers with increasing Clinical Dementia Rating, most evident in the precuneus/posterior cingulate and parietal cortices (p < 0.001). Comparison of asymptomatic mutation carriers with noncarriers demonstrated decreased fcMRI in the precuneus/posterior cingulate (p = 0.014) and right parietal cortex (p = 0.0016). We observed a significant interaction between mutation carrier status and eYO, with decreases in DMN fcMRI observed as mutation carriers approached and surpassed their eYO. CONCLUSION: Functional disruption of the DMN occurs early in the course of autosomal dominant Alzheimer disease, beginning before clinically evident symptoms, and worsening with increased impairment. These findings suggest that DMN fcMRI may prove useful as a biomarker across a wide spectrum of disease, and support the feasibility of DMN fcMRI as a secondary endpoint in upcoming multicenter clinical trials in Alzheimer disease.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1212/wnl.0b013e3182a1aafe

Cites

42 of 42 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Callosal white matter degeneration may contribute to functional disruption of functional networks such as the default mode network.

    “our findings support the possibility that callosal white matter degeneration contribute to functional disruption of functional networks such as the default mode network (Chhatwal et al., 2013; Mueller and Weiner, 2017; Taylor et al., 2017)”

    From White matter diffusion alterations precede symptom onset in autosomal dominant Alzheimer’s disease (2018) · cites this paper as Chhatwal et al., 2013

    The Discussion reports decreased default mode network connectivity in autosomal dominant Alzheimer disease. It does not identify callosal white matter degeneration as a possible contributor to that disruption (searched: callosal white matter degeneration; corpus callosum and structural connectivity). (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The default mode network shows reduced connectivity in early-stage Alzheimer's disease.

    “a functional network showing reduced connectivity in early-stage Alzheimer’s disease (Sorg et al., 2007; Chhatwal et al., 2013)”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Thomas JB, Brier MR, Bateman RJ, et al. Functional con- nectivity in autosomal dominant and sporadic Alzheimer disease. Presented at the Alzheimer's Association Interna- tional Conference; July 13-18, 2013; Boston.

Cited by

Sorted by citations

Authors
Chhatwal, J. P., Schultz, A. P., Johnson, K., Benzinger, T. L. S., Jack, C., Ances, B. M., Sullivan, C. A., Salloway, S. P., Ringman, J. M., Koeppe, R. A., Marcus, D. S., Thompson, P., Saykin, A. J., Correia, S., Schofield, P. R., Rowe, C. C., Fox, N. C., Brickman, A. M., Mayeux, R., McDade, E., Bateman, R., Fagan, A. M., Goate, A. M., Xiong, C., Buckles, V. D., Morris, J. C., & Sperling, R. A.
Affiliations
  • Harvard University (US)
  • From the Departments of Neurology (J.P.C., A.P.S., K.J., C.A.S., R.A.S.) and Radiology (K.J.), and Martinos Center for Biomedical Imaging (J.P.C., A.P.S., K.J., C.A.S., R.A.S.), Massachusetts General Hospital, Harvard Medical School, Boston; Department of Radiology, Section of Neuroradiology (T.L.S.B., D.S.M.), Mallinckrodt Institute of Radiology (T.L.S.B., B.M.A., D.S.M.), Departments of Neurology (B.M.A., R.B., A.M.F., V.D.B., J.C.M.), Genetics (A.M.G.), and Psychiatry (A.M.G.), and Division of...
Venue
Neurology
Published
2013-08-20
Volume
81
Issue
8
Pages
736-744
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2165942026
Cited by
179
References
42
Citations by year
2026: 2 · 2025: 7 · 2024: 8 · 2023: 10 · 2022: 10 · 2021: 14 · 2020: 11 · 2019: 33 · 2018: 18 · 2017: 19 · 2016: 10 · 2015: 12 · 2014: 24 · 2013: 1
FWCI
8.59
Type
journal article
Language
en
Open access
Locations
  • Neurology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • National Institute for Health and Care Research (NF-SI-0508-10123)
  • National Institute on Aging (K24AG035007, P50AG005134, U19AG032438, U24AG021886, P30AG062421)
  • National Institute of Nursing Research (R01NR012657)
  • National Institute of Neurological Disorders and Stroke (P30NS048056)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
autosomal dominant Alzheimer's disease, default mode network, functional connectivity, presenilin 1 mutations, amyloid precursor protein mutations, mutation carriers, asymptomatic carriers, precuneus, posterior cingulate cortex, parietal cortex, Clinical Dementia Rating, early biomarkers
MeSH terms
Adult, Alzheimer Disease, Brain, Female, Genes, Dominant, Heterozygote, Humans, Male, Nerve Net, Prevalence, Amyloid beta-Protein Precursor, Genetic Predisposition to Disease, Internationality, Presenilin-1, Presenilin-2, Connectome

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review