Evidence map›Paper›PMID 9192643›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1997

Continuous in vitro propagation of the malaria parasite Plasmodium vivax.

C F Golenda, J Li, R Rosenberg

2 registry-linked trialsOpen access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
4.6field-weighted citation impact, top 6% 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.

NCT00367380 phase2completednot on this mapstarted 2006, after this paper: background citation

Evaluation of Reproducibility of a Sporozoite Challenge Model for Plasmodium Vivax in Human Volunteers

TypeinterventionalSponsorMalaria Vaccine and Drug Development CenterRan2006 to 2007Enrolled18ConditionsMALARIA, FEVER, Sweating Fever, ChillsArms413ABM, 414WRR, 418JAL
NCT01083095 early_phase1completednot on this mapstarted 2005, after this paper: background citation

Establishment of a Sporozoite Challenge Model for Plasmodium Vivax in Human Volunteers

TypeinterventionalSponsorMalaria Vaccine and Drug Development CenterRan2005 to 2006Enrolled18ConditionsMalaria, VivaxArmsSporozoite Challenge Model for Plasmodium vivax in Humans
3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 139 citations in OpenAlex.

  1. Review
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  5. The Black Box of Cellular and Molecular Events ofInternational journal of molecular sciences · 2022
    Review
  6. The challenges ofFrontiers in immunology · 2022
    Article
  7. Article
  8. Review
  9. Article
  10. A Way Forward for Culturing Plasmodium vivax.Trends in parasitology · 2020
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
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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

3 authors at 3 institutions in 1 country.

C F GolendaDepartment of Entomology, Walter Reed Army Institute of Research, Washington, DC 20307-5100, USA.
J Li
R Rosenberg
National Institute of Allergy and Infectious Diseases · USNational Institutes of Health · USWalter Reed Army Institute of Research · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The difficulty in controlling Plasmodium vivax, the most common cause of human malaria, has been complicated by growing drug resistance. We have established a method to cycle parasite generations in continuous culture using human blood cells. Chesson strain parasites were passaged from owl monkey erythrocytes to human reticulocytes in McCoy's 5A medium modified with L-glutamine with 25 mM Hepes buffer supplemented with 20% AB+ human serum. Reticulocytes were separated by differential centrifugation in homologous plasma from the peripheral blood of a hemochromatosis patient. Parasites were grown during each 48-hr cycle in a static candle jar environment until the beginning of schizogony, at about 36-40 hr, when reticulocytes were added and cultures transferred to a shaker for 10-12 hr. The addition of a concentration of 10% reticulocytes resulted in stabilizing parasite densities between 0.28 and 0.57 after cycle 3 and increasing the total number of parasites at least 2-fold with each generational cycle. Cultured parasites successfully infected an owl monkey. The morphology of cultured parasites was typical of P. vivax, with highly ameboid trophozoites evident; however, infected erythrocytes were enlarged and distorted on thin film preparations. The species identity of cultivated parasites was confirmed by analysis of the A and C 18S rRNA genes from genomic DNA and expression of only the A gene during erythrocytic asexual growth. The ability to culture P. vivax opens new opportunities to develop vaccines, test drugs, and clone parasites for genome sequencing.

Indexed as

AnimalsHaplorhiniHumansMalaria, VivaxParasitologyPlasmodium vivax

Identifiers

PMID9192643
PMCPMC21236
OpenAlexW2082025591

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.