Evidence map›Paper›PMID 23241425›Full record

ArticleJournal of biomedical science2012

The anti-malarial drug Mefloquine disrupts central autonomic and respiratory control in the working heart brainstem preparation of the rat.

Varinder K Lall, Mathias Dutschmann, Jim Deuchars, Susan A Deuchars

Open access · diamondAbstract read
In one paragraph

Article in Journal of biomedical science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Beyond the Polygraph: Deception Detection and the Autonomic Nervous System.Federal practitioner : for the health care professionals of the VA, DoD, and PHS · 2019
    Article
  4. Physiologic regulation of heart rate and blood pressure involves connexin 36-containing gap junctions.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2017
    Article
  5. Review
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.

Varinder K LallSchool of Biomedical Sciences, University of Leeds, Leeds, UK.
Mathias Dutschmann
Jim Deuchars
Susan A Deuchars
University of Leeds · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E001831/1Biotechnology and Biological Sciences Research Council PG/08/120/26338British Heart Foundation PG/08/120/26338
6 · The paper itself

Abstract

backgroundMefloquine is an anti-malarial drug that can have neurological side effects. This study examines how mefloquine (MF) influences central nervous control of autonomic and respiratory systems using the arterially perfused working heart brainstem preparation (WHBP) of the rat. Recordings of nerve activity were made from the thoracic sympathetic chain and phrenic nerve, while heart rate (HR) and perfusion pressure were also monitored in the arterially perfused, decerebrate, rat WHBP. MF was added to the perfusate at 1 μM to examine its effects on baseline parameters as well as baroreceptor and chemoreceptor reflexes.

resultsMF caused a significant, atropine resistant, bradycardia and increased phrenic nerve discharge frequency. Chemoreceptor mediated sympathoexcitation (elicited by addition of 0.1 ml of 0.03% sodium cyanide to the aortic cannula) was significantly attenuated by the application of MF to the perfusate. Furthermore MF significantly decreased rate of return to resting HR following chemoreceptor induced bradycardia. An increase in respiratory frequency and attenuated respiratory-related sympathetic nerve discharge during chemoreceptor stimulation was also elicited with MF compared to control. However, MF did not significantly alter baroreceptor reflex sensitivity.

conclusionsThese studies indicate that in the WHBP, MF causes profound alterations in autonomic and respiratory control. The possibility that these effects may be mediated through actions on connexin 36 containing gap junctions in central neurones controlling sympathetic nervous outflow is discussed.

Indexed as

HeartAnimalsAntimalarialsBrain StemCentral Nervous SystemMefloquineOrgan Culture TechniquesPerfusionRatsRespiratory SystemAntimalarialsMefloquine

Identifiers

PMID23241425
PMCPMC3541349
OpenAlexW2099988069

What OpenQuestion holds

Textmetadata
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.