Evidence map›Paper›PMID 18410515›Full record

ArticleJournal of neurochemistry2008

Expression of microRNAs and their precursors in synaptic fractions of adult mouse forebrain.

Giovanni Lugli, Vetle I Torvik, John Larson, Neil R Smalheiser

Open access · greenAbstract readHistorical Article
In one paragraph

Article in Journal of neurochemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
157citing papers in PubMed, 1 pooled it
7.5field-weighted citation impact, top 3% 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

157 citing papers in PubMed, 1 synthesis or guideline pooled it, 255 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Small Differences and Big Changes: The Many Variables of MicroRNA Expression and Function in the Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Review
  9. Review
  10. RNA in axons, dendrites, synapses and beyond.Frontiers in molecular neuroscience · 2024
    Review
  11. Article
  12. An miRNA with a major impact on stress.Trends in genetics : TIG · 2023
    Article
  13. Roles of Non-Coding RNA in Alzheimer's Disease Pathophysiology.International journal of molecular sciences · 2023
    Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article

97 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

4 authors at 1 institution in 1 country.

Giovanni LugliDepartment of Psychiatry and Psychiatric Institute, University of Illinois at Chicago, Chicago, Illinois, USA.
Vetle I Torvik
John Larson
Neil R Smalheiser
University of Illinois Chicago · US

Funding

Arrowsmith Data Mining Techniques in Neuro-InformaticsR01LM007292 · NLM · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SMALHEISER, NEIL R · 2001 to 2005
$3.2M
Function of FMRP in the Mouse Olfactory SystemR01DC005793 · NIDCD · UNIVERSITY OF ILLINOIS AT CHICAGO · PI LARSON, JOHN R · 2003 to 2007
$1.2M
Validating microRNA Analysis in Human Postmortem BrainR21MH081099 · NIMH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DWIVEDI, YOGESH · 2007 to 2008
$384k
NIDCD NIH HHS DC 05793NIDCD NIH HHS R01 DC005793NIMH NIH HHS MH81099NIMH NIH HHS R21 MH081099NLM NIH HHS LM07292NLM NIH HHS R01 LM007292
6 · The paper itself

Abstract

We have characterized the expression of microRNAs and selected microRNA precursors within several synaptic fractions of adult mouse forebrain, including synaptoneurosomes, synaptosomes and isolated post-synaptic densities (PSDs), using methods of microRNA microarray, real time qRT-PCR, Northern blotting and immunopurification using anti-PSD95 antibody. The majority of brain microRNAs (especially microRNAs known to be expressed in pyramidal neurons) are detectably expressed in synaptic fractions, and a subset of microRNAs is significantly enriched in synaptic fractions relative to total forebrain homogenate. MicroRNA precursors are also detectable in synaptic fractions at levels that are comparable to whole tissue. Whereas mature microRNAs are predominantly associated with soluble components of the synaptic fractions, microRNA precursors are predominantly associated with PSDs. For seven microRNAs examined, there was a significant correlation between the relative synaptic enrichment of the precursor and the relative synaptic enrichment of the corresponding mature microRNA. These findings support the proposal that microRNAs are formed, at least in part, via processing of microRNA precursors locally within dendritic spines. Dicer is expressed in PSDs but is enzymatically inactive until conditions that activate calpain cause its liberation; thus, we propose that synaptic stimulation may lead to local processing of microRNA precursors in proximity to the synapse.

Indexed as

AnimalsDisks Large Homolog 4 ProteinGene Expression ProfilingGuanylate KinasesHistory, AncientImmunoprecipitationIntracellular Signaling Peptides and ProteinsMaleMembrane ProteinsMiceMice, Inbred C57BLMicroRNAsOligonucleotide Array Sequence AnalysisProsencephalonRNA, MessengerRNA PrecursorsDisks Large Homolog 4 ProteinDlg4 protein, mouseGuanylate KinasesIntracellular Signaling Peptides and ProteinsMembrane ProteinsMicroRNAsRNA, MessengerRNA Precursors

Identifiers

PMID18410515
PMCPMC3711666
OpenAlexW2005811224

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.