Evidence map›Paper›PMID 22038614›Full record

ArticleJournal of anesthesia2012

Lidocaine treatment during synapse reformation periods permanently inhibits NGF-induced excitation in an identified reconstructed synapse of Lymnaea stagnalis.

Shin Onizuka, Seiji Shiraishi, Ryuuji Tamura, Tetsu Yonaha, Nobuko Oda, Yuko Kawasaki, Naweed I Syed, Tetsuro Shirasaka, Isao Tsuneyoshi

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of anesthesia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.2field-weighted citation impact, top 50% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. BDNF-TrkB/proBDNF-p75Scientific reports · 2023
    Article
  2. Article
  3. Review
  4. A Novel Approach to Primary Cell Culture forFrontiers in physiology · 2018
    Article
  5. Frontiers in physiology · 2018
    Article
  6. Review
  7. Article
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

9 authors at 2 institutions in 2 countries.

Shin OnizukaDepartment of Anesthesiology and Intensive Care, Faculty of Medicine, University of Miyazaki, Kiyotake-Cho, Miyazaki, 889-1692, Japan. pirotann@med.miyazaki-u.ac.jp
Seiji Shiraishi
Ryuuji Tamura
Tetsu Yonaha
Nobuko Oda
Yuko Kawasaki
Naweed I Syed
Tetsuro Shirasaka
Isao Tsuneyoshi
University of Miyazaki · JPUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeNerve growth factor (NGF) has been reported to affect synaptic transmission and cause neuropathic pain. In contrast, lidocaine has been used to reduce neuropathic pain; however, the effect of NGF and lidocaine on spontaneous transmitter release and synapse excitation has not been fully defined. Therefore, the effect of NGF and lidocaine on nerve regeneration, synapse reformation, and subsequent spontaneous transmitter release was investigated. We used Lymnaea stagnalis soma-soma-identified synaptic reconstruction to demonstrate that a transient increase in both frequency and amplitude of spontaneous events of miniature endplate potentials (MEPPs) occurs following NGF treatment and a short burst of action potentials in the presynaptic cell; in addition, the effect of lidocaine on NGF-induced synapse reformation was investigated.

methodsUsing a cell culture and electrophysiological and FM-143 imaging techniques for exocytosis on unequivocally identified presynaptic visceral dorsal 4 (VD4) and postsynaptic somata left pedal (LPeE) neurons from the mollusc Lymnaea stagnalis, the effects of NGF and lidocaine on nerve regeneration, synapse reformation, and its electrophysiological spontaneous synaptic transmission between cultured neurons were described.

resultsNGF increased axonal growth, frequency, and amplitudes of MEPPs. Lidocaine exposure during synapse reformation periods was drastically and permanently reduced axonal growth and the incidence of synapse excitation by NGF.

conclusionNGF increased amplitudes and frequencies of MEPPs and induced synaptic excitation by increasing axonal growth and exocytosis. Lidocaine exposure during synapse reformation periods permanently suppressed NGF-induced excitation by suppressing axonal growth and exocytosis of presynaptic neurons in the identified reconstructed synapse of L. stagnalis.

Indexed as

AcetylcholineAnesthetics, LocalAnimalsCells, CulturedExocytosisLidocaineLymnaeaMiniature Postsynaptic PotentialsNerve Growth FactorNeuritesSynapsesAcetylcholineAnesthetics, LocalLidocaineNerve Growth Factor

Identifiers

PMID22038614
OpenAlexW2134612301

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.