Evidence map›Paper›PMID 1834011›Full record

ArticleAntimicrobial agents and chemotherapy1991

In vitro and in vivo potentiation of chloroquine against malaria parasites by an enantiomer of amlodipine.

P Deloron, L K Basco, B Dubois, C Gaudin, F Clavier, J Le Bras, F Verdier

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 1991. 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
1.0field-weighted citation impact, top 22% 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, 24 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

P DeloronInstitut National de la Santé et de la Recherche Médicale Unité 13, Claude Bernard Hospital, Paris, France.
L K Basco
B Dubois
C Gaudin
F Clavier
J Le Bras
F Verdier
Université Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A combination of chloroquine and amlodipine, a derivative of 1,4-dihydropyridine calcium channel blocker, was tested against Plasmodium falciparum in vitro and P. yoelii in mice. The dextrorotary enantiomer of amlodipine, practically devoid of calcium channel blocking action, increased chloroquine accumulation inside the infected mouse erythrocytes and potentiated chloroquine action against the resistant strains of P. falciparum in vitro and P. yoelii in mice. Unlike the racemate, the dextrorotary amlodipine was not toxic to the host animal, even at the highest dose of 250 mg/kg. No potentiating effect was noted in the chloroquine-susceptible strains of P. falciparum. The results of this study indicate that chloroquine potentiation of amlodipine is probably independent of calcium channels and that a combination therapy of the dextrorotary enantiomer of amlodipine and chloroquine might be a potentially useful therapeutic strategy against chloroquine-resistant falciparum malaria.

Indexed as

AmlodipineAnimalsChloroquineDrug SynergismErythrocytesFemaleMalaria, FalciparumMiceNifedipinePlasmodiumPlasmodium falciparumStereoisomerismAmlodipineChloroquineNifedipine

Identifiers

PMID1834011
PMCPMC245168
OpenAlexW2015035098

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.