Evidence map›Paper›PMID 28700655›Full record

ArticlePloS one2017

Cyclophosphamide leads to persistent deficits in physical performance and in vivo mitochondria function in a mouse model of chemotherapy late effects.

Marie-Laure Crouch, Gary Knowels, Rudolph Stuppard, Nolan G Ericson, Jason H Bielas, David J Marcinek, Karen L Syrjala

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 13% 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

22 citing papers in PubMed, 38 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

7 authors at 2 institutions in 1 country.

Marie-Laure CrouchClinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.ORCID http://orcid.org/0000-0001-8099-5826
Gary KnowelsDepartment of Radiology, School of Medicine, University of Washington, Seattle, Washington, United States of America.
Rudolph StuppardDepartment of Radiology, School of Medicine, University of Washington, Seattle, Washington, United States of America.
Nolan G EricsonTranslational Research Program, Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.
Jason H BielasTranslational Research Program, Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.
David J MarcinekDepartment of Radiology, School of Medicine, University of Washington, Seattle, Washington, United States of America.
Karen L SyrjalaClinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.
University of Washington · USFred Hutch Cancer Center · US

Funding

Translational Bioimaging Core Shared ResourceP30CA015704 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI Marian Esvelt · 1985 to 2026
$296.4M
SPECIFICITY OF OXYGEN DNA DAMAGE AND MUTAGENESISP01AG001751 · NIA · UNIVERSITY OF WASHINGTON · PI RABINOVITCH, PETER S · 1985 to 2021
$29.6M
Integrating health informatics in a scalable stepped care self-management program for survivors after hematopoietic cell transplantationR01CA215134 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI BAKER, KEVIN S, MAJHAIL, NAVNEET S. · 2017 to 2022
$3.6M
Internet Studies to Enhance Long Term Survivorship after Hematologic MalignancyR01CA160684 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI SYRJALA, KAREN LESLIE · 2011 to 2015
$3.4M
Seattle Cancer and Aging ProgramP20CA103728 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI RABINOVITCH, PETER S · 2003 to 2007
$3.4M
Interdisciplinary Studies to Enhance Long Term SurvivalR01CA112631 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI SYRJALA, KAREN LESLIE · 2005 to 2010
$2.8M
NCI NIH HHS P20 CA103728NCI NIH HHS P30 CA015704NCI NIH HHS R01 CA112631NCI NIH HHS R01 CA160684NCI NIH HHS R01 CA215134NIA NIH HHS P01 AG001751
6 · The paper itself

Abstract

Fatigue is the symptom most commonly reported by long-term cancer survivors and is increasingly recognized as related to skeletal muscle dysfunction. Traditional chemotherapeutic agents can cause acute toxicities including cardiac and skeletal myopathies. To investigate the mechanism by which chemotherapy may lead to persistent skeletal muscle dysfunction, mature adult mice were injected with a single cyclophosphamide dose and evaluated for 6 weeks. We found that exposed mice developed a persistent decrease in treadmill running time compared to baseline (25.7±10.6 vs. 49.0±16.8 min, P = 0.0012). Further, 6 weeks after drug exposure, in vivo parameters of mitochondrial function remained below baseline including maximum ATP production (482.1 ± 48.6 vs. 696.2 ± 76.6, P = 0.029) and phosphocreatine to ATP ratio (3.243 ± 0.1 vs. 3.878 ± 0.1, P = 0.004). Immunoblotting of homogenized muscles from treated animals demonstrated a transient increase in HNE adducts 1 week after exposure that resolved by 6 weeks. However, there was no evidence of an oxidative stress response as measured by quantitation of SOD1, SOD2, and catalase protein levels. Examination of mtDNA demonstrated that the mutation frequency remained comparable between control and treated groups. Interestingly, there was evidence of a transient increase in NF-ĸB p65 protein 1 day after drug exposure as compared to saline controls (0.091±0.017 vs. 0.053±0.022, P = 0.033). These data suggest that continued impairment in muscle and mitochondria function in cyclophosphamide-treated animals is not linked to persistent oxidative stress and that alternative mechanisms need to be considered.

Indexed as

AnimalsBlotting, WesternCitrate (si)-SynthaseCyclophosphamideDNA, MitochondrialFemaleMiceMice, Inbred C57BLMitochondriaMuscle, SkeletalCitrate (si)-SynthaseCyclophosphamideDNA, Mitochondrial

Identifiers

PMID28700655
PMCPMC5507312
OpenAlexW2734717321

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.