Evidence map›Paper›PMID 26099816›Full record

ArticleBehavioural brain research2015

Doxorubicin and cyclophosphamide induce cognitive dysfunction and activate the ERK and AKT signaling pathways.

Kaliris Y Salas-Ramirez, Ciara Bagnall, Leslie Frias, Syed A Abdali, Tim A Ahles, Karen Hubbard

Abstract read
In one paragraph

Article in Behavioural brain research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 87 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

6 authors at 2 institutions in 1 country.

Kaliris Y Salas-RamirezDepartment of Physiology, Pharmacology and Neuroscience, The Sophie Davis School of Biomedical Education, New York, NY 10031, USA.
Ciara BagnallDepartment of Biology, The City College of New York, New York, NY 10031, USA.
Leslie FriasDepartment of Biology, The City College of New York, New York, NY 10031, USA.
Syed A AbdaliDepartment of Physiology, Pharmacology and Neuroscience, The Sophie Davis School of Biomedical Education, New York, NY 10031, USA.
Tim A AhlesDepartment of Psychiatry and Behavioral Science, Memorial Sloan-Kettering Cancer Center, New York, NY 10022, USA.
Karen HubbardDepartment of Biology, The City College of New York, New York, NY 10031, USA. Electronic address: khubbard@sci.ccny.cuny.edu.
City College of New York · USMemorial Sloan Kettering Cancer Center · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
Training and Career Development CoreU54CA132378 · NCI · CITY COLLEGE OF NEW YORK · PI Tim Alan Ahles, ADRIANA ESPINOSA · 2008 to 2026
$28.9M
Training and Career Development and Education CoreU54CA137788 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI Daniel Alan Heller · 2008 to 2026
$28.1M
VOLTAGE GATING OF ION CHANNELS--SIMULATIONS AND AB INITIO CALCULATIONSS06GM008168 · NIGMS · CITY COLLEGE OF NEW YORK · PI LAKSHMAN, MAHESH K · 1989 to 2010
$17.6M
Cellular/Molecular Basis of Development: Research CenterG12MD007603 · NIMHD · CITY COLLEGE OF NEW YORK · PI PEZZANO, MARK · 2012 to 2017
$11.5M
RESEARCH SUPPORT FOR BIOMEDICAL CAREERS AT CCNYR25GM056833 · NIGMS · CITY COLLEGE OF NEW YORK · PI STEINBERG, MARK L · 2000 to 2019
$9.9M
NCI NIH HHS P30 CA008748NCI NIH HHS U54 CA132378NCI NIH HHS U54CA132378NCI NIH HHS U54 CA137788NIGMS NIH HHS NIH/RISE GM08168NIGMS NIH HHS R25 GM056833NIGMS NIH HHS S06 GM008168NIMHD NIH HHS 5G12MD007603NIMHD NIH HHS G12 MD007603
6 · The paper itself

Abstract

Chemotherapy is associated with long-term cognitive deficits in breast cancer survivors. Studies suggest that these impairments result in the loss of cognitive reserve and/or induce a premature aging of the brain. This study has been aimed to determine the potential underlying mechanisms that induce cognitive impairments by chemotherapeutic agents commonly used in breast cancer. Intact and ovariectomized (OVX) female rats were treated intravenously with either saline or a combination of cyclophosphamide (40 mg/kg) and doxorubicin (4 mg/kg). All subjects were tested for anxiety, locomotor activity, working, visual and spatial memory consecutively. Although anxiety and visual memory were not affected, chemotherapy significantly decreased locomotor activity and impaired working and spatial memory in female rats, independent of their hormonal status. The cognitive deficits observed are hippocampal dependent. Therefore, as a first step to identity the potential signaling pathways involved in this cognitive dysfunction, the protein levels of extracellular signal-regulated kinase 1/2 (Erk1/2), Akt (neuroprotectant) BDNF and (structural protein) PSD95 in hippocampal lysates were measured. Erk1/2 and Akt pathways are known to modulate synaptic plasticity, neuronal survival, aging and cancer. We found an increased activation of Erk1/2 and Akt as well as an increase in the protein levels of PSD95 in OVX female rodents. However, OVX females had a higher overall BDNF level, independent of chemotherapy. These studies provide additional evidence that commonly used chemotherapeutic agents affect cognitive function and impact synaptic plasticity/aging molecules which may be part of the underlying biology explaining cognitive change and can be potential therapeutic targets.

Indexed as

Age FactorsAnimalsAntineoplastic Combined Chemotherapy ProtocolsBehavior, AnimalBrain-Derived Neurotrophic FactorCognitionCognition DisordersCyclophosphamideDisks Large Homolog 4 ProteinDoxorubicinFemaleHippocampusIntracellular Signaling Peptides and ProteinsMAP Kinase Signaling SystemMembrane ProteinsNeuronal PlasticityBrain-Derived Neurotrophic FactorCyclophosphamideDisks Large Homolog 4 ProteinDlg4 protein, ratDoxorubicinIntracellular Signaling Peptides and ProteinsMembrane ProteinsProto-Oncogene Proteins c-aktAgingAKT signalingBehaviorCognitive dysfunctionERK signalingRat

Identifiers

PMID26099816
PMCPMC4558256
OpenAlexW607594986

What OpenQuestion holds

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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.