Evidence map›Paper›PMID 33285637›Full record

ArticleJournal of Alzheimer's disease : JAD2021

Partial Inhibition of Mitochondrial Complex I Reduces Tau Pathology and Improves Energy Homeostasis and Synaptic Function in 3xTg-AD Mice.

Andrea Stojakovic, Su-Youne Chang, Jarred Nesbitt, Nicholas P Pichurin, Mark A Ostroot, Tomonori Aikawa, Takahisa Kanekiyo, Eugenia Trushina

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 31 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Andrea StojakovicDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Su-Youne ChangDepartment of Neurosurgery, Mayo Clinic, Rochester, MN, USA.
Jarred NesbittDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Nicholas P PichurinDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Mark A OstrootDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Tomonori AikawaDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.
Takahisa KanekiyoDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.
Eugenia TrushinaDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Mayo Clinic in Arizona · USMayo Clinic in Florida · USMayo Clinic · US

Funding

Mitochondrial Complex I as a Target for Neuroprotection in ADRF1AG055549 · NIA · MAYO CLINIC ROCHESTER · PI TRUSHINA, EUGENIA · 2017 to 2025
$7.0M
AMP-Kinase as a target for neuroprotection in ADRF1AG062135 · NIA · UNIVERSITY OF MINNESOTA · PI LEE, MICHAEL K, TRUSHINA, EUGENIA · 2019 to 2019
$3.2M
Small molecule mitochondria-targeted therapeutics for Huntingtons DiseaseR01NS107265 · NINDS · MAYO CLINIC ROCHESTER · PI TRUSHINA, EUGENIA · 2018 to 2021
$2.2M
Small Molecule Mitochondria-Targeted Therapeutics for AD (Supplement)UH3NS113776 · NINDS · MAYO CLINIC ROCHESTER · PI TRUSHINA, EUGENIA · 2022 to 2022
$1.1M
NIA NIH HHS RF1 AG055549NIA NIH HHS RF1 AG062135NINDS NIH HHS R01 NS107265NINDS NIH HHS UH3 NS113776
6 · The paper itself

Abstract

backgroundAccumulation of hyperphosphorylated tau (pTau) protein is associated with synaptic dysfunction in Alzheimer's disease (AD). We previously demonstrated that neuroprotection in familial mouse models of AD could be achieved by targeting mitochondria complex I (MCI) and activating the adaptive stress response. Efficacy of this strategy on pTau-related pathology remained unknown.

objectiveTo investigate the effect of specific MCI inhibitor tricyclic pyrone compound CP2 on levels of human pTau, memory function, long term potentiation (LTP), and energy homeostasis in 18-month-old 3xTg-AD mice and explore the potential mechanisms.

methodsCP2 was administered to male and female 3xTg-AD mice from 3.5-18 months of age. Cognitive function was assessed using the Morris water maze. Glucose metabolism was measured in periphery using a glucose tolerance test and in the brain using fluorodeoxyglucose F18 positron-emission tomography (FDG-PET). LTP was evaluated using electrophysiology in the hippocampus. The expression of key proteins associated with neuroprotective mechanisms were assessed by western blotting.

resultsChronic CP2 treatment restored synaptic activity in female 3xTg-AD mice; cognitive function, levels of synaptic proteins, glucose metabolism, and energy homeostasis were improved in male and female 3xTg-AD mice. Significant reduction of human pTau in the brain was associated with increased activity of protein phosphatase of type 2A (PP2A), and reduced activity of cyclin-dependent kinase 5 (CDK5) and glycogen synthase kinase 3β (GSK3β).

conclusionCP2 treatment protected against synaptic dysfunction and memory impairment in symptomatic 3xTg-AD mice, and reduced levels of human pTau, indicating that targeting mitochondria with small molecule specific MCI inhibitors represents a promising strategy for treating AD.

Indexed as

Alzheimer DiseaseAnimalsCognitionElectron Transport Complex IEnergy MetabolismFluorodeoxyglucose F18HippocampusHomeostasisHumansLong-Term PotentiationMemoryMiceMice, TransgenicMorris Water Maze TestPositron-Emission TomographyPyronesCP2 compoundElectron Transport Complex IFluorodeoxyglucose F18PyronesRadiopharmaceuticalstau Proteins3xTg-AD transgenic miceAlzheimer’s diseaseelectrophysiologyfluorodeoxyglucose F18 positron-emission tomographyhuman tau proteinmitochondrial complex Ismall molecule therapeutics

Identifiers

PMID33285637
PMCPMC7902954
OpenAlexW3109966315

What OpenQuestion holds

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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.