Evidence map›Paper›PMID 33016909›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Triheptanoin Mitigates Brain ATP Depletion and Mitochondrial Dysfunction in a Mouse Model of Alzheimer's Disease.

Xiaodong Yuan, Lu Wang, Neha Tandon, Huili Sun, Jing Tian, Heng Du, Juan M Pascual, Lan Guo

Open access · greenAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 25% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. GC/MS-Based Urine Metabolomics Study on the Ameliorative Effect ofEvidence-based complementary and alternative medicine : eCAM · 2022
    Article
  8. 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

8 authors at 3 institutions in 2 countries.

Xiaodong YuanDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
Lu WangDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
Neha TandonDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
Huili SunDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
Jing TianDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
Heng DuDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
Juan M PascualDepartment of Neurology and Neurotherapeutics, The University of Texas Southwestern Medical Center, Dallas, TX, USA.
Lan GuoDepartment of Biological Sciences, The University of Texas at Dallas, Richardson, TX, USA.
The University of Texas at Dallas · USJinan Central Hospital · CNThe University of Texas Southwestern Medical Center · US

Funding

University of Kansas Alzheimer's Disease Research Center (KU ADRC)P30AG072973 · NIA · UNIVERSITY OF KANSAS MEDICAL CENTER · PI Jaime Perales Puchalt · 2021 to 2026
$25.3M
University of Kansas Alzheimer's Disease Core CentersP30AG035982 · NIA · UNIVERSITY OF KANSAS MEDICAL CENTER · PI BROOKS, WILLIAM M. · 2011 to 2020
$16.6M
Dietary treatment of Glut1 deficiency (G1D) - Revision - 1R01NS094257 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI PASCUAL, JUAN M. · 2016 to 2021
$4.0M
Pyruvate dehydrogenase encephalopathy: mechanisms and therapyR01NS102588 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI PASCUAL, JUAN M. · 2017 to 2021
$1.8M
Modulation of neural function in energy failureR01NS077015 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI PASCUAL, JUAN M. · 2012 to 2016
$1.7M
NIA NIH HHS P30 AG035982NIA NIH HHS P30 AG072973NINDS NIH HHS R01 NS077015NINDS NIH HHS R01 NS094257NINDS NIH HHS R01 NS102588
6 · The paper itself

Abstract

backgroundBrain energy failure is an early pathological event associated with synaptic dysfunction in Alzheimer's disease (AD). Thus, mitigation or enhancement of brain energy metabolism may offer a therapeutic avenue. However, there is uncertainty as to what metabolic process(es) may be more appropriate to support or augment since metabolism is a multiform process such that each of the various metabolic precursors available is utilized via a specific metabolic pathway. In the brain, these pathways sustain not only a robust rate of energy production but also of carbon replenishment.

objectiveTriheptanoin, an edible odd-chain fatty acid triglyceride, is uncommon in that it replenishes metabolites in the tricarboxylic acid cycle (TCA) cycle via anaplerosis in addition to fueling the cycle via oxidation, thus potentially leading to both carbon replenishment and enhanced mitochondrial ATP production.

methodsTo test the hypothesis that triheptanoin is protective in AD, we supplied mice with severe brain amyloidosis (5×FAD mice) with dietary triheptanoin for four and a half months, followed by biological and biochemical experiments to examine mice metabolic as well as synaptic function.

resultsTriheptanoin treatment had minimal impact on systemic metabolism and brain amyloidosis as well as tauopathy while attenuating brain ATP deficiency and mitochondrial dysfunction including respiration and redox balance in 5×FAD mice. Synaptic density, a disease hallmark, was also preserved in hippocampus and neocortex despite profound amyloid deposition. None of these effects took place in treated control mice.

conclusionThese findings support the energy failure hypothesis of AD and justify investigating the mechanisms in greater depth with ultimate therapeutic intent.

Indexed as

Adenosine TriphosphateAlzheimer DiseaseAnimalsCitric Acid CycleDisease Models, AnimalEnergy MetabolismFatty AcidsHippocampusMiceMice, TransgenicMitochondriaOxidation-ReductionTriglyceridesAdenosine TriphosphateFatty AcidsTriglyceridestriheptanoinAlzheimer’s diseaseamyloid-βanaplerosismitochondrial functiontriheptanoin

Identifiers

PMID33016909
PMCPMC8502101
OpenAlexW3091619987

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.