Evidence map›Paper›PMID 20815922›Full record

ArticleMolecular brain2010

Expression of tryptophan 2,3-dioxygenase in mature granule cells of the adult mouse dentate gyrus.

Koji Ohira, Hideo Hagihara, Keiko Toyama, Keizo Takao, Masaaki Kanai, Hiroshi Funakoshi, Toshikazu Nakamura, Tsuyoshi Miyakawa

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. BrainFrontiers in immunology · 2021
    Pooled it
  2. Article
  3. Single-cell map of the female brain across reproductive transitions.bioRxiv : the preprint server for biology · 2026
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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

8 authors at 4 institutions in 1 country.

Koji OhiraDivision of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake 470-1192, Japan.
Hideo Hagihara
Keiko Toyama
Keizo Takao
Masaaki Kanai
Hiroshi Funakoshi
Toshikazu Nakamura
Tsuyoshi Miyakawa
Fujita Health University · JPNational Institute for Physiological Sciences · JPOsaka University · JPKringle Pharma (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

New granule cells are continuously generated in the dentate gyrus of the adult hippocampus. During granule cell maturation, the mechanisms that differentiate new cells not only describe the degree of cell differentiation, but also crucially regulate the progression of cell differentiation. Here, we describe a gene, tryptophan 2,3-dioxygenase (TDO), whose expression distinguishes stem cells from more differentiated cells among the granule cells of the adult mouse dentate gyrus. The use of markers for proliferation, neural progenitors, and immature and mature granule cells indicated that TDO was expressed in mature cells and in some immature cells. In mice heterozygous for the alpha-isoform of calcium/calmodulin-dependent protein kinase II, in which dentate gyrus granule cells fail to mature normally, TDO immunoreactivity was substantially downregulated in the dentate gyrus granule cells. Moreover, a 5-bromo-2'-deoxyuridine labeling experiment revealed that new neurons began to express TDO between 2 and 4 wk after the neurons were generated, when the axons and dendrites of the granule cells developed and synaptogenesis occurred. These findings indicate that TDO might be required at a late-stage of granule cell development, such as during axonal and dendritic growth, synaptogenesis and its maturation.

Indexed as

Cell DifferentiationAgingAnimalsAntibody SpecificityBlotting, WesternBromodeoxyuridineCalcium-Calmodulin-Dependent Protein Kinase Type 2Dentate GyrusFluorescent Antibody TechniqueInterneuronsMaleMiceMice, Inbred C57BLNeuronsOrgan SpecificityStem CellsBromodeoxyuridineCalcium-Calmodulin-Dependent Protein Kinase Type 2Tryptophan Oxygenase

Identifiers

PMID20815922
PMCPMC2945337
OpenAlexW2132758130

What OpenQuestion holds

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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.