Evidence map›Paper›PMID 25131458›Full record

ReviewThe Journal of comparative neurology2014

Endogenous versus exogenous markers of adult neurogenesis in canaries and other birds: advantages and disadvantages.

Jacques Balthazart, Gregory F Ball

Open access · greenAbstract readReview
In one paragraph

Review in The Journal of comparative neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 44 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

2 authors at 2 institutions in 2 countries.

Jacques BalthazartUniversity of Liège, GIGA Neurosciences, Liège, Belgium.
Gregory F Ball
Johns Hopkins University · USUniversity of Liège · BE

Funding

SEASONAL PLASTICITY IN STEROID SENSITIVE NEURAL CIRCUITSR01NS035467 · NINDS · JOHNS HOPKINS UNIVERSITY · PI BALL, GREGORY F · 1997 to 2011
$2.7M
NINDS NIH HHS R01 NS035467NINDS NIH HHS R01 NS35467
6 · The paper itself

Abstract

Although the existence of newborn neurons had originally been suggested, but not broadly accepted, based on studies in adult rodent brains, the presence of an active neurogenesis process in adult homoeothermic vertebrates was first firmly established in songbirds. Adult neurogenesis was initially studied with the tritiated thymidine technique, later replaced by the injection and detection of the marker of DNA replication 5-bromo-2'-deoxyuridine (BrdU). More recently, various endogenous markers were used to identify young neurons or cycling neuronal progenitors. We review here the respective advantages and pitfalls of these different approaches in birds, with specific reference to the microtubule-associated protein, doublecortin (DCX), that has been extensively used to identify young newly born neurons in adult brains. All these techniques of course have limitations. Exogenous markers label cells replicating their DNA only during a brief period and it is difficult to select injection doses that would exhaustively label all these cells without inducing DNA damage that will also result in some form of labeling during repair. On the other hand, specificity of endogenous markers is difficult to establish due to problems related to the specificity of antibodies (these problems can be, but are not always, addressed) and more importantly because it is difficult, if not impossible, to prove that a given marker exhaustively and specifically labels a given cell population. Despite these potential limitations, these endogenous markers and DCX staining in particular clearly represent a useful approach to the detailed study of neurogenesis especially when combined with other techniques such as BrdU.

Indexed as

AnimalsAvian ProteinsBirdsBrainBromodeoxyuridineCanariesDoublecortin Domain ProteinsMicrotubule-Associated ProteinsNeurogenesisNeuronsNeuropeptidesThymidineAvian ProteinsBromodeoxyuridineDoublecortin Domain ProteinsMicrotubule-Associated ProteinsNeuropeptidesThymidinebromodeoxyuridinedoublecortinHVCmarkers of neurogenesisneuronal plasticitythymidine analogs

Identifiers

PMID25131458
PMCPMC4198497
OpenAlexW1935570473

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.