Evidence map›Paper›PMID 22451309›Full record

ArticleJournal of Alzheimer's disease : JAD2012

Antemortem pulse pressure elevation predicts cerebrovascular disease in autopsy-confirmed Alzheimer's disease.

Daniel A Nation, Lisa Delano-Wood, Katherine J Bangen, Christina E Wierenga, Amy J Jak, Lawrence A Hansen, Douglas R Galasko, David P Salmon, Mark W Bondi

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Hypertension and Alzheimer's disease pathology at autopsy: A systematic review.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2022
    Pooled it
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  15. Pathways linking pulse pressure to dementia in adults with Down syndrome.medRxiv : the preprint server for health sciences · 2023
    Article
  16. Visit-To-Visit Blood Pressure Variability and Subthreshold Depressive Symptoms in Older Adults.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Daniel A NationVeterans Affairs San Diego Healthcare System, San Diego, CA 92161, USA.
Lisa Delano-Wood
Katherine J Bangen
Christina E Wierenga
Amy J Jak
Lawrence A Hansen
Douglas R Galasko
David P Salmon
Mark W Bondi
University of California, San Diego · USVA San Diego Healthcare System · US

Funding

VIRUS-INDUCED BRAIN PATHOLOGYP50AG005131 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GALASKO, DOUGLAS R · 1985 to 2018
$55.4M
Cognitive Abilities of At-Risk Elderly for DementiaR01AG012674 · NIA · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI BONDI, MARK W · 2001 to 2012
$2.7M
Neuroimaging and Risk Factor Correlates in Aging and MCIK24AG026431 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BONDI, MARK W · 2007 to 2016
$1.7M
NIA NIH HHS K24 AG026431NIA NIH HHS P50 AG005131NIA NIH HHS P50 AG05131NIA NIH HHS R01 AG012674
6 · The paper itself

Abstract

Elevated pulse pressure (PP) is associated with cognitive decline and increased risk of Alzheimer's disease (AD) in older adults, although the mechanisms behind these associations remain unclear. To address this question, we examined whether antemortem late-life PP elevation predicted vascular or AD pathology in autopsy-confirmed AD patients. Sixty-five elderly patients (mean age 74.2 years) clinically diagnosed with possible or probable AD underwent neuropsychological testing and blood pressure examinations. Postmortem histopathological measures of cerebrovascular disease (CVD) and AD neuropathology were later obtained on these same patients. We expected that antemortem PP elevation, but not standard blood pressure measures such as systolic or diastolic blood pressure, would predict the autopsy-based presence of CVD, and possibly AD pathology, in elderly AD patients. Results demonstrated that antemortem PP elevation was associated with the presence and severity of CVD at autopsy. For every 5 mmHg increase in antemortem PP there was an estimated 36% increase in the odds of having CVD at autopsy. Additionally, PP accounted for 12% of variance in CVD severity. No significant associations were present for cerebral amyloid angiopathy or Braak and Braak staging of the severity of AD pathology. Other standard blood pressure measures also did not significantly predict neuropathology. The association between antemortem PP and CVD at autopsy suggests that in older adults with AD, PP elevation may increase the risk of CVD. These findings may have treatment implications since some antihypertensive medications specifically address the pulsatile component of blood pressure (e.g., renin-angiotensin system inhibitors, calcium channel blockers).

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAutopsyBlood PressureBrainCerebrovascular DisordersFemaleHumansMaleMiddle AgedNeuropsychological TestsPredictive Value of Tests

Identifiers

PMID22451309
PMCPMC3370943
OpenAlexW1589310095

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.