Evidence map›Paper›PMID 26883424›Full record

ArticleVeterinary research2016

Repurposing of antiparasitic drugs: the hydroxy-naphthoquinone buparvaquone inhibits vertical transmission in the pregnant neosporosis mouse model.

Joachim Müller, Adriana Aguado-Martínez, Vera Manser, Ho Ning Wong, Richard K Haynes, Andrew Hemphill

Open access · goldAbstract read
In one paragraph

Article in Veterinary research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 37 citations in OpenAlex.

  1. SynergisticFrontiers in veterinary science · 2026
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  7. Journal of fungi (Basel, Switzerland) · 2023
    Review
  8. Article
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  10. Antimicrobial agents and chemotherapy · 2021
    Article
  11. Research intoPathogens (Basel, Switzerland) · 2020
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Drug target identification in protozoan parasites.Expert opinion on drug discovery · 2016
    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

6 authors at 2 institutions in 2 countries.

Joachim MüllerInstitute of Parasitology, Vetsuisse Faculty, University of Berne, Länggass-Strasse 122, 3012, Bern, Switzerland. joachim.mueller@vetsuisse.unibe.ch.
Adriana Aguado-MartínezInstitute of Parasitology, Vetsuisse Faculty, University of Berne, Länggass-Strasse 122, 3012, Bern, Switzerland. adriana.aguado@vetsuisse.unibe.ch.
Vera ManserInstitute of Parasitology, Vetsuisse Faculty, University of Berne, Länggass-Strasse 122, 3012, Bern, Switzerland. alohavera_@hotmail.com.
Ho Ning WongCentre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences G2, North-West University Potchefstroom Campus, 11 Hoffman Street, Potchefstroom, 2531, South Africa. 25904442@nwu.ac.za.
Richard K HaynesCentre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences G2, North-West University Potchefstroom Campus, 11 Hoffman Street, Potchefstroom, 2531, South Africa. Richard.Haynes@nwu.ac.za.
Andrew HemphillInstitute of Parasitology, Vetsuisse Faculty, University of Berne, Länggass-Strasse 122, 3012, Bern, Switzerland. andrew.hemphill@vetsuisse.unibe.ch.
University of Bern · CHNorth-West University · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The three anti-malarial drugs artemiside, artemisone, and mefloquine, and the naphthoquinone buparvaquone known to be active against theileriosis in cattle and Leishmania infections in rodents, were assessed for activity against Neospora caninum infection. All four compounds inhibited the proliferation of N. caninum tachyzoites in vitro with IC50 in the sub-micromolar range, but artemisone and buparvaquone were most effective (IC50 = 3 and 4.9 nM, respectively). However, in a neosporosis mouse model for cerebral infection comprising Balb/c mice experimentally infected with the virulent isolate Nc-Spain7, the three anti-malarial compounds failed to exhibit any activity, since treatment did not reduce the parasite burden in brains and lungs compared to untreated controls. Thus, these compounds were not further evaluated in pregnant mice. On the other hand, buparvaquone, shown earlier to be effective in reducing the parasite load in the lungs in an acute neosporosis disease model, was further assessed in the pregnant mouse model. Buparvaquone efficiently inhibited vertical transmission in Balb/c mice experimentally infected at day 7 of pregnancy, reduced clinical signs in the pups, but had no effect on cerebral infection in the dams. This demonstrates proof-of-concept that drug repurposing may lead to the discovery of an effective compound against neosporosis that can protect offspring from vertical transmission and disease.

Indexed as

AnimalsAntiparasitic AgentsCoccidiosisFemaleInfectious Disease Transmission, VerticalMaleMice, Inbred BALB CNaphthoquinonesNeosporaPregnancyAntiparasitic AgentsbuparvaquoneNaphthoquinones

Identifiers

PMID26883424
PMCPMC4756515
OpenAlexW2282711642

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.