Evidence map›Paper›PMID 19144100›Full record

ArticleBMC biology2009

Microarray and cDNA sequence analysis of transcription during nerve-dependent limb regeneration.

James R Monaghan, Leonard G Epp, Srikrishna Putta, Robert B Page, John A Walker, Chris K Beachy, Wei Zhu, Gerald M Pao, Inder M Verma, Tony Hunter and 4 more

Open access · goldAbstract read
In one paragraph

Article in BMC biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
13.7field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 318 citations in OpenAlex.

  1. Pooled it
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21 more citing papers are in PubMed but not listed here.

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

14 authors at 6 institutions in 1 country.

James R MonaghanDepartment of Biology and Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40506, USA. james.monaghan@uky.edu
Leonard G Epp
Srikrishna Putta
Robert B Page
John A Walker
Chris K Beachy
Wei Zhu
Gerald M Pao
Inder M Verma
Tony Hunter
Susan V Bryant
David M Gardiner
Tim T Harkins
S Randal Voss
University of Kentucky · USSalk Institute for Biological Studies · USUniversity of California, Irvine · USMinot State University · USRoche (United States) · USUnion College · US

Funding

WORKSHOPS AND EVALUATIONP20RR016471 · NCRR · UNIVERSITY OF NORTH DAKOTA · PI KELLER, CHRISTOPHER P · 2001 to 2011
$31.7M
GENOME RESOURCES FOR MODEL AMPHIBIANSR24RR016344 · NCRR · UNIVERSITY OF KENTUCKY · PI VOSS, STEPHEN RANDAL · 2002 to 2011
$3.5M
NCRR NIH HHS P20 RR016471NCRR NIH HHS P20-RR016741NCRR NIH HHS R24 RR016344NCRR NIH HHS R24-RR016344
6 · The paper itself

Abstract

backgroundMicroarray analysis and 454 cDNA sequencing were used to investigate a centuries-old problem in regenerative biology: the basis of nerve-dependent limb regeneration in salamanders. Innervated (NR) and denervated (DL) forelimbs of Mexican axolotls were amputated and transcripts were sampled after 0, 5, and 14 days of regeneration.

resultsConsiderable similarity was observed between NR and DL transcriptional programs at 5 and 14 days post amputation (dpa). Genes with extracellular functions that are critical to wound healing were upregulated while muscle-specific genes were downregulated. Thus, many processes that are regulated during early limb regeneration do not depend upon nerve-derived factors. The majority of the transcriptional differences between NR and DL limbs were correlated with blastema formation; cell numbers increased in NR limbs after 5 dpa and this yielded distinct transcriptional signatures of cell proliferation in NR limbs at 14 dpa. These transcriptional signatures were not observed in DL limbs. Instead, gene expression changes within DL limbs suggest more diverse and protracted wound-healing responses. 454 cDNA sequencing complemented the microarray analysis by providing deeper sampling of transcriptional programs and associated biological processes. Assembly of new 454 cDNA sequences with existing expressed sequence tag (EST) contigs from the Ambystoma EST database more than doubled (3935 to 9411) the number of non-redundant human-A. mexicanum orthologous sequences.

conclusionMany new candidate gene sequences were discovered for the first time and these will greatly enable future studies of wound healing, epigenetics, genome stability, and nerve-dependent blastema formation and outgrowth using the axolotl model.

Indexed as

Transcription, GeneticAmbystomaAnimalsCaudataCell ProliferationCluster AnalysisCollagenDNA, ComplementaryExpressed Sequence TagsExtremitiesGene Expression RegulationOligonucleotide Array Sequence AnalysisRegenerationSequence Analysis, DNATime FactorsCollagenDNA, Complementary

Identifiers

PMID19144100
PMCPMC2630914
OpenAlexW2168552260

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.