Evidence map›Paper›PMID 32690681›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Metformin inhibits RAN translation through PKR pathway and mitigates disease in

Tao Zu, Shu Guo, Olgert Bardhi, Daniel A Ryskamp, Jian Li, Solaleh Khoramian Tusi, Avery Engelbrecht, Kelena Klippel, Paramita Chakrabarty, Lien Nguyen and 3 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 139 citations in OpenAlex.

  1. Medications on hypertension, hyperlipidemia, diabetes, and risk of amyotrophic lateral sclerosis: a systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022 · on this map
    Pooled it
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  10. NNature · 2026
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  16. Type 2 diabetes mellitus, antidiabetics, and the risk of amyotrophic lateral sclerosis.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2025
    Article
  17. Article
  18. Cryptic intronic transcriptional initiation generates efficient endogenous mRNA templates for C9orf72-associated RAN translation.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  19. Article
  20. Review

35 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 2 institutions in 2 countries.

Tao ZuCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Shu GuoCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Olgert BardhiCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Daniel A RyskampCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.ORCID 0000-0002-2197-0730
Jian LiCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Solaleh Khoramian TusiCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Avery EngelbrechtCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Kelena KlippelCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Paramita ChakrabartyCenter for Translation Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610.
Lien NguyenCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610.
Todd E GoldeCenter for Translation Research in Neurodegenerative Disease, University of Florida, Gainesville, FL 32610.
Nahum SonenbergDepartment of Biochemistry, McGill University, Montreal, A3A 1A3, Canada; nahum.sonenberg@mcgill.ca ranum@ufl.edu.ORCID 0000-0002-4707-8759
Laura P W RanumCenter for NeuroGenetics, College of Medicine, University of Florida, Gainesville, FL 32610; nahum.sonenberg@mcgill.ca ranum@ufl.edu.ORCID 0000-0001-9808-9661
University of Florida · USMcGill University · CA

Funding

Temporal/spatial RNA Expression Effects in DM1 and DM2P01NS058901 · NINDS · UNIVERSITY OF MINNESOTA · PI RANUM, LAURA P.W · 2008 to 2017
$12.3M
Molecular effects of metformin, PKR and TBI on C9orf72 ALS/FTDR01NS098819 · NINDS · UNIVERSITY OF FLORIDA · PI Laura P.W Ranum, Tao Zu · 2016 to 2026
$5.2M
Molecular Genetic Characterization of SCA8R37NS040389 · NINDS · UNIVERSITY OF FLORIDA · PI RANUM, LAURA P.W · 2015 to 2021
$4.5M
NINDS NIH HHS P01 NS058901NINDS NIH HHS R01 NS098819NINDS NIH HHS R37 NS040389
6 · The paper itself

Abstract

Repeat associated non-AUG (RAN) translation is found in a growing number of microsatellite expansion diseases, but the mechanisms remain unclear. We show that RAN translation is highly regulated by the double-stranded RNA-dependent protein kinase (PKR). In cells, structured CAG, CCUG, CAGG, and G

Indexed as

C9orf72 ProteineIF-2 KinaseAmyotrophic Lateral SclerosisAnimalsBrainDisease Models, AnimalFrontotemporal DementiaHumansMetforminMiceMice, TransgenicMicrosatellite RepeatsProtein BiosynthesisC9orf72 ProteineIF-2 KinaseMetforminALS/FTDC9orf72metforminPKRRAN translation

Identifiers

PMID32690681
PMCPMC7414156
OpenAlexW3045265801

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.