Evidence map›Paper›PMID 22030507›Full record

ArticlePlastic and reconstructive surgery2011

Dose-response effect of human equivalent radiation in the murine mandible: Part II. A biomechanical assessment.

Catherine N Tchanque-Fossuo, Laura A Monson, Aaron S Farberg, Alexis Donneys, Sagar S Deshpande, Elizabeth R Razdolsky, Neil R Halonen, Steven A Goldstein, Steven R Buchman

Abstract readComparative Study
In one paragraph

Article in Plastic and reconstructive surgery, 2011. 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
4.0field-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

22 citing papers in PubMed, 36 citations in OpenAlex.

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  11. Prophylactic administration of Amifostine protects vessel thickness in the setting of irradiated bone.Journal of plastic, reconstructive & aesthetic surgery : JPRAS · 2015
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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 1 institution in 1 country.

Catherine N Tchanque-FossuoAnn Arbor, Mich. From the University of Michigan Medical School and the University of Michigan.
Laura A Monson
Aaron S Farberg
Alexis Donneys
Sagar S Deshpande
Elizabeth R Razdolsky
Neil R Halonen
Steven A Goldstein
Steven R Buchman
Ann Arbor Center for Independent Living · US

Funding

TRAINING GRANT IN TRAUMA, BURN AND WOUND HEALING RESEARCT32GM008616 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BUCHMAN, STEVEN R, CHUNG, KEVIN C · 1997 to 2025
$3.1M
Translational Optimization of Bone Regeneration in the Irradiated MandibleR01CA125187 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BUCHMAN, STEVEN R · 2007 to 2017
$2.8M
NCI NIH HHS R01 CA125187NCI NIH HHS R01CA 125187-01NIGMS NIH HHS T32 GM008616
6 · The paper itself

Abstract

backgroundDespite the widespread use of adjuvant irradiation for head and neck cancer, the extent of damage to the underlying bone is not well understood. However, patients can suffer serious clinical consequences, including pathologic fractures, nonunion, and osteoradionecrosis. The authors' specific aim was to objectively quantify the human equivalent radiation dose-response effect of radiation on the biomechanical properties of the murine mandible.

methodsTwelve Sprague-Dawley rats were randomized into three radiation dosage groups--low (5.91 Gy), middle (7 Gy), and high (8.89 Gy)--delivered in five daily fractions. The fractionation regimen was used to approximate 75, 100, and 150 percent, respectively, of the bioequivalent dose humans receive in conventional head and neck cancer treatment. Fifty-six days after irradiation, hemimandibles were loaded to failure in a uniaxial tension at 0.5 mm/second. Load displacement curves were analyzed for yield and breaking load, and values were considered statistically significant at p<0.05.

resultsThe authors' data demonstrated a statistically significant decrease in the yield and breaking load metrics. The authors' reported averages for low, middle, and high radiation dosages were 162, 136, and 69 N, respectively, for yield; and 215, 211, and 141 N, respectively, for breaking load. Both of these quantitative biomechanical properties were diminished in a dose-response pattern.

conclusionsIn this article, the authors report a dose-response effect in the degradation of the biomechanical properties of the mandible after fractionated human equivalent radiation. The authors' findings and model can now be used to formulate therapies aimed at remediating those effects and augmenting bone regeneration and healing after adjuvant radiotherapy in head and neck cancer patients.

Indexed as

Dose Fractionation, RadiationAnalysis of VarianceAnimalsBiomechanical PhenomenaDisease Models, AnimalDose-Response Relationship, RadiationHead and Neck NeoplasmsHumansMaleMandibleOsteoradionecrosisRadiation InjuriesRadiation ToleranceRadiotherapy, AdjuvantRandom AllocationRats

Identifiers

PMID22030507
PMCPMC4489566
OpenAlexW2334621979

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.