Evidence map›Paper›PMID 16723583›Full record

ArticleAntimicrobial agents and chemotherapy2006

Targeting of hematin by the antimalarial pyronaridine.

Saranya Auparakkitanon, Soebsakul Chapoomram, Kannika Kuaha, Thamrong Chirachariyavej, Prapon Wilairat

Open access · greenAbstract readComparative Study
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
5.5field-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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 92 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Antimicrobial Activity of Naphthyridine Derivatives.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 3 institutions in 1 country.

Saranya AuparakkitanonDivision of Toxicology, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Bangkok, Thailand.
Soebsakul Chapoomram
Kannika Kuaha
Thamrong Chirachariyavej
Prapon Wilairat
Mahidol University · THRamathibodi Hospital · THKhon Kaen University · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pyronaridine, 2-methoxy-7-chloro-10[3',5'-bis(pyrrolidinyl-1-methyl-)4'hydroxyphenyl]aminobenzyl-(b)-1,5-naphthyridine, a new Mannich base schizontocide originally developed in China and structurally related to the aminoacridine drug quinacrine, is currently undergoing clinical testing. We now show that pyronaridine targets hematin, as demonstrated by its ability to inhibit in vitro beta-hematin formation (at a concentration equal to that of chloroquine), to form a complex with hematin with a stoichiometry of 1:2, to enhance hematin-induced red blood cell lysis (but at 1/100 of the chloroquine concentration), and to inhibit glutathione-dependent degradation of hematin. Our observations that pyronaridine exerted this mechanism of action in situ, based on growth studies of Plasmodium falciparum K1 in culture showing antagonism of pyronaridine in combination with antimalarials (chloroquine, mefloquine, and quinine) that inhibit beta-hematin formation, were equivocal.

Indexed as

Drug Delivery SystemsAnimalsAntimalarialsChloroquineErythrocytesGlutathioneHemeproteinsHeminHemolysisInhibitory Concentration 50In Vitro TechniquesMolecular StructureNaphthyridinesPlasmodium falciparumProtein BindingAntimalarialsChloroquineGlutathioneHemeproteinsHeminhemozoinNaphthyridinespyronaridine

Identifiers

PMID16723583
PMCPMC1479140
OpenAlexW2149218017

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.