Evidence map›Paper›PMID 31271450›Full record

ArticleAnnals of neurology2019

Interleukin 9 alterations linked to alzheimer disease in african americans.

Whitney Wharton, Alexander L Kollhoff, Umesh Gangishetti, Danielle D Verble, Samsara Upadhya, Henrik Zetterberg, Veena Kumar, Kelly D Watts, Andrea J Kippels, Marla Gearing and 3 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Annals of neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.

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  12. Promoting diverse perspectives: Addressing health disparities related to Alzheimer's and all dementias.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
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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

13 authors at 2 institutions in 2 countries.

Whitney WhartonDepartment of Neurology, Emory University, Atlanta, GA.ORCID 0000-0002-6863-5104
Alexander L KollhoffDepartment of Neurology, Emory University, Atlanta, GA.
Umesh GangishettiDepartment of Neurology, Emory University, Atlanta, GA.
Danielle D VerbleDepartment of Neurology, Emory University, Atlanta, GA.
Samsara UpadhyaDepartment of Neurology, Emory University, Atlanta, GA.
Henrik ZetterbergUK Dementia Research Institute at University College London, London, United Kingdom.
Veena KumarDepartment of Neurology, Emory University, Atlanta, GA.
Kelly D WattsDepartment of Neurology, Emory University, Atlanta, GA.
Andrea J KippelsDepartment of Neurology, Emory University, Atlanta, GA.
Marla GearingAlzheimer's Disease Research Center, Emory University, Atlanta, GA.
J Christina HowellDepartment of Neurology, Emory University, Atlanta, GA.
Monica W ParkerDepartment of Neurology, Emory University, Atlanta, GA.
William T HuDepartment of Neurology, Emory University, Atlanta, GA.ORCID 0000-0003-4862-6777
Emory University · USUK Dementia Research Institute · GB

Funding

The Emory Alzheimer's Disease CenterP50AG025688 · NIA · EMORY UNIVERSITY · PI LEVEY, ALLAN I · 2005 to 2019
$25.7M
CSF, MRI, and PET biomarkers of neuroinflammation in Alzheimer's diseaseR01AG054046 · NIA · RBHS-ROBERT WOOD JOHNSON MEDICAL SCHOOL · PI HU, WILLIAM TZU-LUNG · 2016 to 2020
$3.9M
Early CSF detection of FTLDK23AG042856 · NIA · EMORY UNIVERSITY · PI HU, WILLIAM TZU-LUNG · 2013 to 2017
$782k
Preclinical Alzheimer's Disease Biomarkers: Effects of Midlife Vascular FactorsK01AG042498 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI WHARTON, WHITNEY LEE · 2013 to 2017
$617k
African American Alzheimer's Progression Markers - CSF and Neuro-ImagingR21AG043885 · NIA · EMORY UNIVERSITY · PI HU, WILLIAM TZU-LUNG · 2013 to 2014
$429k
NIA NIH HHS K01 AG042498NIA NIH HHS K23 AG042856NIA NIH HHS P50 AG025688NIA NIH HHS R01 AG054046NIA NIH HHS R21 AG043885
6 · The paper itself

Abstract

objectiveCompared to older Caucasians, older African Americans have higher risks of developing Alzheimer disease (AD) and lower cerebrospinal fluid (CSF) tau biomarker levels. It is not known whether tau-related differences begin earlier in life or whether race modifies other AD-related biomarkers such as inflammatory proteins.

methodsWe performed multiplex cytokine analysis in a healthy middle-aged cohort with family history of AD (n = 68) and an older cohort (n = 125) with normal cognition (NC), mild cognitive impairment, or AD dementia. After determining baseline interleukin (IL)-9 level and AD-associated IL-9 change to differ according to race, we performed immunohistochemical analysis for proteins mechanistically linked to IL-9 in brains of African Americans and Caucasians (n = 38), and analyzed postmortem IL-9-related gene expression profiles in the publicly available Mount Sinai cohort (26 African Americans and 180 Caucasians).

resultsCompared to Caucasians with NC, African Americans with NC had lower CSF tau, p-Tau

interpretationBaseline and AD-associated IL-9 differences between African Americans and Caucasians point to distinct molecular phenotypes for AD according to ancestry. Genetic and nongenetic factors need to be considered in future AD research involving unique populations. ANN NEUROL 2019;86:407-418.

Indexed as

Black or African AmericanAgedAlzheimer DiseaseBiomarkersBrainCognitive DysfunctionFemaleHumansInterleukin-9MaleMiddle Agedtau ProteinsWhite PeopleBiomarkersIL9 protein, humanInterleukin-9tau Proteins

Identifiers

PMID31271450
PMCPMC6800153
OpenAlexW2953462294

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.