Evidence map›Paper›PMID 21740442›Full record

ArticleJournal of neurochemistry2011

Neuronal tryptophan hydroxylase expression in BALB/cJ and C57Bl/6J mice.

Helene Bach, Victoria Arango, Yung-Yu Huang, Sharlene Leong, J John Mann, Mark D Underwood

Open access · greenAbstract read
In one paragraph

Article in Journal of neurochemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.7field-weighted citation impact, top 38% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
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  6. Cells · 2022
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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

6 authors at 2 institutions in 1 country.

Helene BachDivision of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, New York 10032, USA. hb2104@columbia.edu
Victoria Arango
Yung-Yu Huang
Sharlene Leong
J John Mann
Mark D Underwood
New York Psychoanalytic Society and Institute · USColumbia University · US

Funding

THE NEUROBIOLOGY OF SUICIDAL BEHAVIORP50MH062185 · NIMH · NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC · PI MANN, JOSEPH JOHN · 2000 to 2009
$21.7M
NIMH NIH HHS MH62185NIMH NIH HHS P50 MH062185
6 · The paper itself

Abstract

BALB/c is an inbred stress-sensitive mouse strain exhibiting low brain serotonin (5-HT) content and a 5-HT biosynthetic enzyme tryptophan hydroxylase (Tph2) variant reported to have lower catalytic activity compared with other inbred base strains. To evaluate other mechanisms that may explain low 5-HT, we compared BALB/cJ mice and a control inbred strain C57Bl/6J mice, for expression of Tph2 mRNA, TPH2 protein and regional levels of 5-HT and its metabolite 5-hydroxyindoleacetic acid. Tph2 mRNA and TPH2 protein in brainstem dorsal raphe nuclei was assayed by in situ hybridization and immunocytochemistry respectively. 5-HT and 5-hydroxyindoleacetic acid were determined by HPLC. BALB/cJ mice had 20% less Tph2 mRNA and 28% fewer TPH2 immunolabeled neurons than C57Bl/6J mice (t = -2.59, p = 0.02). The largest difference in Tph2 transcript expression was in rostral dorsal raphe nuclei (t = 2.731, p = 0.008). 5-HT was 15% lower in the midbrain and 18% lower in the cerebral cortex of BALB/cJ compared with C57Bl/6J mice (p < 0.05). The behavioral differences in BALB/cJ mice relative to the C57Bl/6J strain may be due in part, to fewer 5-HT neurons and lower Tph2 gene expression resulting in less 5-HT neurotransmission. Future studies quantifying expression per neuron are needed to determine whether less expression is explained by fewer neurons or also less expression per neuron, or both.

Indexed as

AnimalsAutoradiographyBrain ChemistryCell CountDensitometryHydroxyindoleacetic AcidImage Processing, Computer-AssistedImmunohistochemistryIn Situ HybridizationMaleMiceMice, Inbred BALB CMice, Inbred C57BLNeuronsRaphe NucleiSerotoninHydroxyindoleacetic AcidSerotoninTph2 protein, mouseTryptophan Hydroxylase

Identifiers

PMID21740442
PMCPMC4222035
OpenAlexW1912443373

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.