Evidence map›Paper›PMID 22666521›Full record

ArticleOxidative medicine and cellular longevity2012

Accumulation of exogenous amyloid-beta peptide in hippocampal mitochondria causes their dysfunction: a protective role for melatonin.

Sergio Rosales-Corral, Dario Acuna-Castroviejo, Dun Xian Tan, Gabriela López-Armas, José Cruz-Ramos, Rubén Munoz, Valery G Melnikov, Lucien C Manchester, Russel J Reiter

Open access · hybridAbstract read
In one paragraph

Article in Oxidative medicine and cellular longevity, 2012. 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
4.6field-weighted citation impact, top 5% 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, 61 citations in OpenAlex.

  1. Mitochondrial calcium cycling in neuronal function and neurodegeneration.Frontiers in cell and developmental biology · 2023
    Review
  2. Melatonin: A Neurotrophic Factor?Molecules (Basel, Switzerland) · 2022
    Review
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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

9 authors at 5 institutions in 3 countries.

Sergio Rosales-CorralCentro de Investigación Biomédica de Occidente del Instituto Mexicano del Seguro Social, Sierra Mojada 800 Colonia Independencia, 44340 Guadalajara, JAL, Mexico. rosalescorra@uthscsa.edu
Dario Acuna-Castroviejo
Dun Xian Tan
Gabriela López-Armas
José Cruz-Ramos
Rubén Munoz
Valery G Melnikov
Lucien C Manchester
Russel J Reiter
The University of Texas Health Science Center at San Antonio · USMexican Social Security Institute · MXUniversidad de Colima · MXUniversidad de Granada · ESUniversidad de Guadalajara · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amyloid-beta (Aβ) pathology is related to mitochondrial dysfunction accompanied by energy reduction and an elevated production of reactive oxygen species (ROS). Monomers and oligomers of Aβ have been found inside mitochondria where they accumulate in a time-dependent manner as demonstrated in transgenic mice and in Alzheimer's disease (AD) brain. We hypothesize that the internalization of extracellular Aβ aggregates is the major cause of mitochondrial damage and here we report that following the injection of fibrillar Aβ into the hippocampus, there is severe axonal damage which is accompanied by the entrance of Aβ into the cell. Thereafter, Aβ appears in mitochondria where it is linked to alterations in the ionic gradient across the inner mitochondrial membrane. This effect is accompanied by disruption of subcellular structure, oxidative stress, and a significant reduction in both the respiratory control ratio and in the hydrolytic activity of ATPase. Orally administrated melatonin reduced oxidative stress, improved the mitochondrial respiratory control ratio, and ameliorated the energy imbalance.

Indexed as

Adenosine TriphosphatasesAmyloid beta-PeptidesAnimalsAxonsCell RespirationCholesterolExtracellular SpaceHippocampusHydrolysisInjections, IntraventricularMaleMelatoninMembrane FluidityMiceMitochondriaMitochondrial MembranesAdenosine TriphosphatasesAmyloid beta-PeptidesCholesterolMelatoninProtective AgentsReactive Oxygen Species

Identifiers

PMID22666521
PMCPMC3359765
OpenAlexW2013431267

What OpenQuestion holds

Textmetadata
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.