Evidence map›Paper›PMID 21734121›Full record

ArticleThe American journal of tropical medicine and hygiene2011

Antimalarial drug sensitivity profile of western Kenya Plasmodium falciparum field isolates determined by a SYBR Green I in vitro assay and molecular analysis.

Hoseah M Akala, Fredrick L Eyase, Agnes C Cheruiyot, Angela A Omondi, Bernhards R Ogutu, Norman C Waters, Jacob D Johnson, Mark E Polhemus, David C Schnabel, Douglas S Walsh

Abstract read
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Article in The American journal of tropical medicine and hygiene, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

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0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

  1. Article
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  4. Heliyon · 2023
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  6. Journal of tropical medicine · 2023
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  9. Impact of Short-Term Storage onAntimicrobial agents and chemotherapy · 2022
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  14. Article
  15. Development in Assay Methods forFrontiers in pharmacology · 2017
    Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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

10 authors.

Hoseah M AkalaGlobal Emerging Infections Surveillance (GEIS) Program, United States Army Medical Research Unit-Kenya (USAMRU-K), Kenya Medical Research Institute (KEMRI)-Walter Reed Project, Kisumu and Nairobi, Kenya. hakala@wrpksm.org
Fredrick L Eyase
Agnes C Cheruiyot
Angela A Omondi
Bernhards R Ogutu
Norman C Waters
Jacob D Johnson
Mark E Polhemus
David C Schnabel
Douglas S Walsh

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In vitro drug sensitivity and molecular analyses of Plasmodium falciparum track drug resistance. DNA-binding fluorescent dyes like SYBR Green I may allow field laboratories, proximal to P. falciparum collection sites, to conduct drug assays. In 2007-2008, we assayed 121 P. falciparum field isolates from western Kenya for 50% inhibitory concentrations (IC(50)) against 6 antimalarial drugs using a SYBR Green I in vitro assay: 91 immediate ex vivo (IEV) and 30 culture-adapted, along with P. falciparum reference clones D6 (chloroquine [CQ] sensitive) and W2 (CQ resistant). We also assessed P. falciparum mdr1 (Pfmdr1) copy number and single nucleotide polymorphisms (SNPs) at four codons. The IC(50)s for IEV and culture-adapted P. falciparum isolates were similar, and approximated historical IC(50)s. For Pfmdr1, mean copy number was 1, with SNPs common at codons 86 and 184. The SYBR Green I assay adapted well to our field-based laboratory, for both IEV and culture-adapted P. falciparum, warranting continued use.

Indexed as

AdolescentAdultAnimalsAntimalarialsChildChild, PreschoolFollow-Up StudiesHumansInfantKenyaPlasmodium falciparumAntimalarials

Identifiers

PMID21734121
PMCPMC3122340

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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.