Evidence map›Paper›PMID 32803865›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2020

Relationships between memory decline and the use of metformin or DPP4 inhibitors in people with type 2 diabetes with normal cognition or Alzheimer's disease, and the role APOE carrier status.

Che-Yuan Wu, Michael Ouk, Yuen Yan Wong, Natasha Z Anita, Jodi D Edwards, Pearl Yang, Baiju R Shah, Nathan Herrmann, Krista L Lanctôt, Moira K Kapral and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 3 pooled it
6.8field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 3 syntheses or guidelines pooled it, 91 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Disentangling treatment status from disease severity in studies of diabetes and Alzheimer's disease biomarkers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  5. Article
  6. Review
  7. Journal of Alzheimer's disease : JAD · 2026
    Article
  8. Article
  9. Association of type 2 diabetes treatment status with in vivo biomarkers of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. 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

14 authors at 8 institutions in 1 country.

Che-Yuan WuDepartment of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada.
Michael OukDepartment of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada.
Yuen Yan WongDepartment of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada.
Natasha Z AnitaDepartment of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada.
Jodi D EdwardsUniversity of Ottawa Heart Institute, University of Ottawa, Ottawa, Ontario, Canada.
Pearl YangPrimary Care Research Unit, Department of Family and Community Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Baiju R ShahICES, Toronto, Ontario, Canada.
Nathan HerrmannHurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.
Krista L LanctôtDepartment of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada.
Moira K KapralICES, Toronto, Ontario, Canada.
Bradley J MacIntoshHurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.
Jennifer S RabinHurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.
Sandra E BlackHurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.
Walter SwardfagerDepartment of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada.
University of Toronto · CASunnybrook Health Science Centre · CASunnybrook Research InstituteHealth Sciences Centre · CAHeart and Stroke Foundation · CAInstitute for Work & Health · CAToronto Dementia Research Alliance · CAUniversity of Ottawa · CA

Funding

NATIONAL ALZHEIMERS COORDINATING CENTER (NACC)U01AG016976 · NIA · UNIVERSITY OF WASHINGTON · PI KUKULL, WALTER ANTHONY · 1999 to 2020
$72.8M
THERAPEUTIC EFFECTS OF INTRA-NASAL INSULIN DETEMIRP50AG005136 · NIA · UNIVERSITY OF WASHINGTON · PI JAYADEY, SUMAN · 1985 to 2019
$57.2M
WASHINGTON UNIVERSITY ALZHEIMERS DISEASE RESEARCH CENTERP50AG005681 · NIA · WASHINGTON UNIVERSITY · PI MORRIS, JOHN · 1985 to 2019
$52.1M
SUPPLEMENT TO RUSH ALZHEIMERS DISEASE CENTER COREP30AG010161 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BENNETT, DAVID ALAN · 1991 to 2020
$49.1M
Satellite Diagnostic and Treatment Clinic CoreP50AG008702 · NIA · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI DE JAGER, PHILIP L · 1989 to 2019
$46.3M
National Alzheimer's Coordinating CenterU24AG072122 · NIA · UNIVERSITY OF WASHINGTON · PI STEPHENS, KARI A · 2021 to 2025
$45.8M
TREATMENT OF DEPRESSION IN ALZHEIMER'S DISEASEP50AG005133 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BECKER, JAMES T. · 1985 to 2019
$43.0M
VASCULAR RISK AND COGNITIVE STATUS IN A LATINO POPULATIONP50AG005142 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ARANDA, MARIA P. · 1985 to 2019
$41.0M
VESICULAR LOCALIZATION AND FUNCTION OF PRESENILIN 1 FRAGMENTP50AG005138 · NIA · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI SCHIMMING, CORBETT · 1985 to 2019
$37.9M
'T V ASSESSMENT - MEMORY DISORDERED PATIENTS'P50AG005146 · NIA · JOHNS HOPKINS UNIVERSITY · PI HUGANIR, RICHARD L · 1985 to 2019
$37.6M
Research Education ComponentP30AG010133 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 1991 to 2020
$37.3M
UC Irvine Alzheimer's Disease Research Center Induced Pluripotent Stem Cell CoreP50AG016573 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI LAFERLA, FRANK M · 2000 to 2019
$37.0M
NIA NIH HHS P30 AG008017NIA NIH HHS P30 AG008051NIA NIH HHS P30 AG010124NIA NIH HHS P30 AG010129NIA NIH HHS P30 AG010133NIA NIH HHS P30 AG010161NIA NIH HHS P30 AG012300NIA NIH HHS P30 AG013846NIA NIH HHS P30 AG013854NIA NIH HHS P30 AG019610NIA NIH HHS P30 AG028383NIA NIH HHS P30 AG035982NIA NIH HHS P30 AG049638NIA NIH HHS P30 AG053760NIA NIH HHS P30 AG062421NIA NIH HHS P30 AG062422NIA NIH HHS P30 AG062428NIA NIH HHS P30 AG062429NIA NIH HHS P30 AG062715NIA NIH HHS P30 AG066444NIA NIH HHS P50 AG005133NIA NIH HHS P50 AG005136NIA NIH HHS P50 AG005138NIA NIH HHS P50 AG005142NIA NIH HHS P50 AG005146NIA NIH HHS P50 AG005681NIA NIH HHS P50 AG008702NIA NIH HHS P50 AG016573NIA NIH HHS P50 AG023501NIA NIH HHS P50 AG025688NIA NIH HHS P50 AG047266NIA NIH HHS P50 AG047270NIA NIH HHS P50 AG047366NIA NIH HHS U01 AG016976NIA NIH HHS U24 AG072122
6 · The paper itself

Abstract

introductionFew studies have examined memory decline among patients with type 2 diabetes using different oral hypoglycemic drugs.

methodsParticipants with normal cognition (NC) or Alzheimer's disease (AD) dementia using a hypoglycemic medication (2005 to 2019) were identified from the National Alzheimer's Coordinating Center database. Delayed memory was assessed using the Wechsler Memory Scale Revised-Logical Memory test. Associations between oral drug classes and memory over time were examined using mixed-effects models with inverse probability treatment weights.

resultsIn NC (n = 1192), metformin use was associated with better memory performance over time, whereas in AD (n = 807), dipeptidyl peptidase-4 (DPP4) inhibitor use was associated with a slower rate of memory decline. Interaction effects suggested greater benefit associated with DPP4 inhibitor use among APOE ε4 carriers. DISCUSSION: Associations between different oral hypoglycemic drugs and memory change were not consistent between cognitively normal elderly and those with AD dementia. APOE ε4 genotype modified some relationships.

Indexed as

AgedAgingAlzheimer DiseaseApolipoprotein E4Apolipoproteins ECognitionCognitive DysfunctionDiabetes Mellitus, Type 2Dipeptidyl-Peptidase IV InhibitorsFemaleGenotypeHumansHypoglycemic AgentsMaleMetforminNeuropsychological TestsApolipoprotein E4Apolipoproteins EDipeptidyl-Peptidase IV InhibitorsHypoglycemic AgentsMetforminAlzheimer's disease (AD)apolipoprotein E (APOE)diabetesdipeptidyl peptidase-4 inhibitor (DPP4 inhibitor)memorymetforminsulfonylureathiazolidinedione

Identifiers

PMID32803865
PMCPMC7754496
OpenAlexW3049028410

What OpenQuestion holds

Texttitle and abstract
LicenceCC BY-NC
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.