Evidence map›Paper›PMID 34671810›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2022

Elevated C-Reactive Protein in Alzheimer's Disease Without Depression in Older Adults: Findings From the Health and Retirement Study.

Ginny Natale, Sean A P Clouston, Dylan M Smith

Open access · bronzeAbstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  6. The influence of depression onset timing after gastrointestinal diseases on dementia risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. Association between dietary inflammatory index score and incident dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
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

3 authors at 1 institution in 1 country.

Ginny NataleProgram in Public Health and Department of Family, Population, and Preventive Medicine, Stony Brook University, Stony Brook, New York, USA.ORCID 0000-0003-0837-4835
Sean A P CloustonProgram in Public Health and Department of Family, Population, and Preventive Medicine, Stony Brook University, Stony Brook, New York, USA.ORCID 0000-0002-6124-0329
Dylan M SmithProgram in Public Health and Department of Family, Population, and Preventive Medicine, Stony Brook University, Stony Brook, New York, USA.
Stony Brook University · US

Funding

HRS Yrs29-34: Y33 SSA CoFundingU01AG009740 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Jessica Faul, KENNETH M LANGA · 1990 to 2026
$555.8M
Social inequalities and the onset of Alzheimer's pathology: The role of Race/Ethnicity, cognitive reserve, and occupational complexityRF1AG058595 · NIA · STATE UNIVERSITY NEW YORK STONY BROOK · PI CLOUSTON, SEAN · 2019 to 2019
$3.3M
NIA NIH HHS RF1 AG058595NIA NIH HHS U01 AG009740
6 · The paper itself

Abstract

We examined the association between differential diagnoses of major stroke and probable Alzheimer's disease (AD) and mixed AD on C-reactive protein (CRP) in older adults with and without depression. Secondary data analyses examined associations between blood-based measures of probable peripheral inflammation using CRP collected from dried blood spots in the Health and Retirement Study, a nationally representative sample of individuals aged 50 and older. A validated pattern-recognition algorithm was utilized to identify cognitive decline indicative of probable AD, mixed AD, and major stroke. Negative binomial regressions were utilized to model concentrations of serologic CRP. On average, participants (N = 4 601) were 70 years old, female, and non-Hispanic White. Mixed AD participants had a 0.26 mg/dL increase in CRP compared to unimpaired participants, controlling for demographics, health behaviors, and comorbidities. Those with mixed AD had 2.14 times increased odds of having high CRP (odds ratio = 2.14 [1.19-3.85]). In analyses stratified by depression, adults with mixed AD and without depression had an additional 0.37 mg/dL increase in CRP (SE = 0.06; p < .001) compared to unimpaired adults. Those with AD without depression had a 0.20 mg/dL increase in CRP (SE = 0.07; p < .01). Age was not associated with increased CRP in nondepressed older adults. Depressed adults with major stroke had a -0.26 mg/dL decrease in CRP (SE = 0.11; p = .02), controlling for hypertension, alcoholic drinks/beverages per week, and smoking status. Concentration modeling revealed that participants with major stroke, probable AD, and probable mixed AD without depression had significantly higher CRP concentrations when compared to unimpaired older adults.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAgedC-Reactive ProteinDepressionFemaleHumansMiddle AgedReceptors, ImmunologicRetirementC-Reactive ProteinCRP protein, humanReceptors, ImmunologicAlzheimer’s diseaseC-reactive proteinDementiaDepressionInflammationMajor stroke

Identifiers

PMID34671810
PMCPMC8974321
OpenAlexW3205238829

What OpenQuestion holds

Textmetadata
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.