Evidence map›Paper›PMID 19666593›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

The origin of malignant malaria.

Stephen M Rich, Fabian H Leendertz, Guang Xu, Matthew LeBreton, Cyrille F Djoko, Makoah N Aminake, Eric E Takang, Joseph L D Diffo, Brian L Pike, Benjamin M Rosenthal and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed
28.1field-weighted citation impact, top 1% 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

109 citing papers in PubMed, 234 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Modeling Sustained Transmission ofTropical medicine and infectious disease · 2023
    Article
  11. Review
  12. Article
  13. Review
  14. Systematic Review on Diversity and Distribution ofPathogens (Basel, Switzerland) · 2022
    Review
  15. Physicochemical classification of organisms.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  16. Review
  17. Article
  18. Molecular Identification ofPathogens (Basel, Switzerland) · 2021
    Article
  19. Article
  20. Article

49 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 7 institutions in 3 countries.

Stephen M RichLaboratory of Medical Zoology, Division of Entomology (PSIS), University of Massachusetts, Amherst, MA 01003, USA. smrich@psis.umass.edu
Fabian H Leendertz
Guang Xu
Matthew LeBreton
Cyrille F Djoko
Makoah N Aminake
Eric E Takang
Joseph L D Diffo
Brian L Pike
Benjamin M Rosenthal
Pierre Formenty
Christophe Boesch
Francisco J Ayala
Nathan D Wolfe
Global Viral · USUniversité de Yaoundé I · CMUniversity of Massachusetts Amherst · USAgricultural Research Service · USMax Planck Institute for Evolutionary Anthropology · DERobert Koch Institute · DEUniversity of California, Irvine · US

Funding

NIH Director's Pioneer Award (RMI)DP1OD000370 · OD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WOLFE, NATHAN D · 2005 to 2009
$3.4M
Genetics &Population Structure of Plasmodium falciparumR01GM070077 · NIGMS · UNIVERSITY OF MASSACHUSETTS AMHERST · PI RICH, STEPHEN M · 2004 to 2007
$1.0M
BORRELIA EVOLUTION AND POPULATION STRUCTURER01GM060759 · NIGMS · TUFTS UNIVERSITY BOSTON · PI RICH, STEPHEN M · 2000 to 2004
$1.0M
THE EMERGENCE OF HIV GENETIC DIVERSITY IN CAMEROONK01TW000003 · FIC · JOHNS HOPKINS UNIVERSITY · PI WOLFE, NATHAN D · 1999 to 2005
$634k
FIC NIH HHS 5 K01 TW000003-05FIC NIH HHS K01 TW000003NIGMS NIH HHS R01 GM060759NIGMS NIH HHS R01 GM070077NIGMS NIH HHS R01GM60759NIGMS NIH HHS R01GM70077NIH HHS DP1 OD000370NIH HHS DP1-OD00370
6 · The paper itself

Abstract

Plasmodium falciparum, the causative agent of malignant malaria, is among the most severe human infectious diseases. The closest known relative of P. falciparum is a chimpanzee parasite, Plasmodium reichenowi, of which one single isolate was previously known. The co-speciation hypothesis suggests that both parasites evolved separately from a common ancestor over the last 5-7 million years, in parallel with the divergence of their hosts, the hominin and chimpanzee lineages. Genetic analysis of eight new isolates of P. reichenowi, from wild and wild-born captive chimpanzees in Cameroon and Côte d'Ivoire, shows that P. reichenowi is a geographically widespread and genetically diverse chimpanzee parasite. The genetic lineage comprising the totality of global P. falciparum is fully included within the much broader genetic diversity of P. reichenowi. This finding is inconsistent with the co-speciation hypothesis. Phylogenetic analysis indicates that all extant P. falciparum populations originated from P. reichenowi, likely by a single host transfer, which may have occurred as early as 2-3 million years ago, or as recently as 10,000 years ago. The evolutionary history of this relationship may be explained by two critical genetic mutations. First, inactivation of the CMAH gene in the human lineage rendered human ancestors unable to generate the sialic acid Neu5Gc from its precursor Neu5Ac, and likely made humans resistant to P. reichenowi. More recently, mutations in the dominant invasion receptor EBA 175 in the P. falciparum lineage provided the parasite with preference for the overabundant Neu5Ac precursor, accounting for its extreme human pathogenicity.

Indexed as

PhylogenyAmino Acid SequenceAnimalsGlycoproteinsHumansMalariaMolecular Sequence DataMutationN-Acetylneuraminic AcidPan troglodytesPlasmodiumPlasmodium falciparumProtozoan Infections, AnimalProtozoan ProteinsSequence Alignmentcircumsporozoite protein, ProtozoanGlycoproteinsN-Acetylneuraminic AcidProtozoan Proteins

Identifiers

PMID19666593
PMCPMC2720412
OpenAlexW2171297799

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.