Evidence map›Paper›PMID 19653010›Full record

ArticleSupportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer2009

A novel bioassay model to determine clinically significant bisphosphonate levels.

Mark A Scheper, Ashraf Badros, Andrew R Salama, Gary Warburton, Kevin J Cullen, Dianna S Weikel, Timothy F Meiller

Abstract read
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In one paragraph

Article in Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
0.9field-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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
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  7. Review
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  9. Zoledronic acid affects the process ofFrontiers in cellular and infection microbiology · 2023
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  11. Functional Analyses of FourInternational journal of molecular sciences · 2021
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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.

Mark A ScheperDepartment of Diagnostic Sciences and Pathology, University of Maryland Medical Center, 650 W Baltimore Street, 7 N, Baltimore, MD 21201, USA. mscheper@umaryland.edu
Ashraf Badros
Andrew R Salama
Gary Warburton
Kevin J Cullen
Dianna S Weikel
Timothy F Meiller
University of Maryland, Baltimore · USUniversity of Maryland Medical Center · US

Funding

Clinical Research Career Development (RMI)K12RR023250 · NCRR · UNIVERSITY OF MARYLAND BALTIMORE · PI SHULDINER, ALAN R. · 2005 to 2009
$13.3M
NCRR NIH HHS K12 RR023250
6 · The paper itself

Abstract

purposeBisphosphonate-associated osteonecrosis (BON) is a recently recognized oral complication of bisphosphonate (BP) therapy. Currently, research into the pathogenesis of BON has been hampered by being deficient in studies capable of measuring the level of BP in saliva or at the bone-soft tissue interface. The objective of this current study was to develop a novel bioassay model representative of the oral levels of BPs in patients presenting with or at risk for BON.

methodsZoledronic acid (ZA) injectable was used to develop standardized MTS cell proliferation assay curves at concentrations of 0-10 microM, which were used either in a dilution in normal media, mimicking BP freed from bone or used to "spike" saliva individuals not taking BPs and mimicking BP levels being excreted. This bioassay was then used to estimate BP levels from samples of saliva and bone ex vivo from patients with and without BON.

resultsSaliva and bone from patients with existing BON showed levels of BP ranging from 0.4 to 4.6 microM, while patients receiving IV infusion of BP and naïve to BON showed levels in saliva ranging from 0.4 to 5 microM. All control specimens and patients naïve to BP showed levels at 0 microM.

conclusionsGiven the fact that BPs are poor candidates for detection using standard methods (HPLC), this bioassay provides us with the ability to estimate clinically relevant concentrations of BP capable of producing apoptosis and the inhibition cell proliferation of oral mucosal cells based on previous studies. Subsequently, apoptosis and the inhibition of proliferation could lead to BON, secondary to the exposure of the bone in the unique microenvironment of the oral cavity.

Indexed as

AdultApoptosisBiological AssayBone and BonesBone Density Conservation AgentsCell LineCell ProliferationDiphosphonatesHumansImidazolesMouth MucosaOsteonecrosisRisk FactorsSalivaZoledronic AcidBone Density Conservation AgentsDiphosphonatesImidazolesZoledronic Acid

Identifiers

PMID19653010
OpenAlexW2087065120

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.