Evidence map›Paper›PMID 22539447›Full record

ArticleInternational journal of geriatric psychiatry2013

Plasma neopterin level as a marker of peripheral immune activation in amnestic mild cognitive impairment and Alzheimer's disease.

Daniel C Parker, Michelle M Mielke, Qilu Yu, Paul B Rosenberg, Alka Jain, Constantine G Lyketsos, Neal S Fedarko, Esther S Oh

Abstract read
In one paragraph

Article in International journal of geriatric psychiatry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  15. A Novel Method to Identify Differential Pathways in Hippocampus Alzheimer's Disease.Medical science monitor : international medical journal of experimental and clinical research · 2017
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  16. The Serum Levels of Resistin and Its Relationship with Other Proinflammatory Cytokines in Patients with Alzheimer's Disease.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2017
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Daniel C ParkerEastern Virginia Medical School, Norfolk, VA, USA.
Michelle M Mielke
Qilu Yu
Paul B Rosenberg
Alka Jain
Constantine G Lyketsos
Neal S Fedarko
Esther S Oh

Funding

Institute for Clinical and Translational Research (KL2)KL2RR025006 · NCRR · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2007 to 2011
$12.9M
Blood-based lipid biomarkers reflective of Alzheimer-associated neurodegenerationR21NS060271 · NINDS · JOHNS HOPKINS UNIVERSITY · PI MIELKE, MICHELLE M · 2007 to 2008
$395k
Development of blood lipid biomarkers for Alzheimer's disease progressionR21AG028754 · NIA · JOHNS HOPKINS UNIVERSITY · PI MIELKE, MICHELLE M · 2007 to 2008
$379k
Oral Glucose Tolerance Test for Alzheimer's Disease Biomarker DevelopmentR21AG033769 · NIA · JOHNS HOPKINS UNIVERSITY · PI CRAFT, SUZANNE, OH, ESTHER SEUNGHEE · 2010 to 2011
$368k
NCRR NIH HHS 5KL2RR025006NCRR NIH HHS KL2 RR025006NIA NIH HHS 1R21AG028754NIA NIH HHS R21 AG028754NIA NIH HHS R21 AG033769NINDS NIH HHS R21 NS060271NINDS NIH HHS R21NS060271-01PHS HHS P5O AGO05146
6 · The paper itself

Abstract

objectiveAlterations of the immune system play important roles in Alzheimer's disease (AD). The primary purpose of this study was to compare the plasma levels of neopterin, a marker of cellular immune activity, in amnestic mild cognitive impairment (aMCI), early (mild to moderate) AD, and cognitively normal controls. In addition, the correlation of plasma neopterin with interferon-gamma (IFN-γ) and interleukin-6 (IL-6) was also examined.

methodsPlasma samples from patients with mild-to-moderate AD (N = 34), aMCI (N = 27), and cognitively normal controls (N = 30) were obtained from the Johns Hopkins Alzheimer's Disease Research Center. Plasma neopterin, IFN-γ, and IL-6 levels were measured using commercially available ELISAs. Multiple linear regression was performed to study differences in the baseline neopterin levels between normal, aMCI, and AD patients. Pearson correlation coefficients were estimated for neopterin and IFN-γ and IL-6 levels. All analyses were conducted using SAS (SAS Institute, Inc., Cary, NC) and GraphPad Prism version 5.00 for Window (GraphPad Software, San Diego, CA, USA).

resultsAD subjects had significantly higher neopterin values compared with aMCI (β = 0.202, p = 0.004) and normal (β = 0.263, p = 0.0004) subjects. There was no statistically significant difference between normal and aMCI subjects. Significant associations between neopterin and IFN-γ (r = 0.41, p < 0.0001) and IL-6 (r = 0.35, p = 0.0006) levels were found.

conclusionsOur study demonstrates that peripheral immune response may be stronger in later stages of AD pathophysiology, when dementia has developed.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAmnesiaBiomarkersCognitive DysfunctionEnzyme-Linked Immunosorbent AssayFemaleHumansImmunity, CellularInterferon-gammaInterleukin-6MaleNeopterinRegression AnalysisBiomarkersInterferon-gammaInterleukin-6Neopterin

Identifiers

PMID22539447
PMCPMC3505262

What OpenQuestion holds

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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.