Cited by 20Parasites and Host InteractionsMollusks and Parasites StudiesParasitic Diseases Research and Treatment

Schistosoma haematobium infection is associated with alterations in energy and purine-related metabolism in preschool-aged children

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Osakunor, Derick N. M., Mduluza, Takafira, Osei-Hyiaman, Douglas, Burgess, Karl, Woolhouse, Mark E. J., Mutapi, Francisca·2020·PLoS neglected tropical diseases

Abstract

Helminths are parasitic worms that infect over a billion people worldwide. The pathological consequences from infection are due in part, to parasite-induced changes in host metabolic pathways. Here, we analyse the changes in host metabolic profiles, in response to the first Schistosoma haematobium infection and treatment in Zimbabwean children. A cohort of 83 schistosome-negative children (2-5 years old) as determined by parasitological examination, guardian interviews and examination of medical records, was recruited at baseline. Children were followed up after three months for parasitological diagnosis of their first S. haematobium infection, by detection of parasite eggs excreted in urine. Children positive for infection were treated with the antihelminthic drug praziquantel, and treatment efficacy checked three months after treatment. Blood samples were taken at each time point, and capillary electrophoresis mass spectrometry in conjunction with multivariate analysis were used to compare the change in serum metabolite profiles in schistosome-infected versus uninfected children. Following baseline at the three-month follow up, 11 children had become infected with S. haematobium (incidence = 13.3%). Our results showed that infection with S. haematobium was associated with significant increases (>2-fold) in discriminatory metabolites, linked primarily with energy (G6P, 3-PG, AMP, ADP) and purine (AMP, ADP) metabolism. These observed changes were commensurate with schistosome infection intensity, and levels of the affected metabolites were reduced following treatment, albeit not significantly. This study demonstrates that early infection with S. haematobium is associated with alterations in host energy and purine metabolism. Taken together, these changes are consistent with parasite-related clinical manifestations of malnutrition, poor growth and poor physical and cognitive performance observed in schistosome-infected children.

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Authors
Osakunor, D. N. M., Mduluza, T., Osei-Hyiaman, D., Burgess, K., Woolhouse, M. E. J., & Mutapi, F.
Affiliations
  • University of Edinburgh (GB)
  • University of Zimbabwe (ZW)
Corresponding author
  • Osakunor, Derick N. M.
  • Mduluza, Takafira
  • Burgess, Karl
  • Woolhouse, Mark E. J.
  • Mutapi, Francisca
Venue
PLoS neglected tropical diseases
Published
2020-12-14
Volume
14
Issue
12
Pages
e0008866
ISSN
  • 1935-2727 (ISSN-L)
  • 1935-2735
OpenAlex
W3111718474
Cited by
20
References
96
Citations by year
2026: 4 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 4 · 2021: 3
FWCI
1.87
Type
journal article
Language
en
Open access
Locations
  • PLoS neglected tropical diseases (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
Funders
  • Thrasher Research Fund (12440)
  • Wellcome Trust (108061/Z/15/Z)
  • Oak Foundation
  • Darwin Trust of Edinburgh
  • National Institute for Health Research (16/136/33)
Topics
  • Life Sciences › Immunology and Microbiology › Parasitology › Parasites and Host Interactions
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Mollusks and Parasites Studies
  • Health Sciences › Medicine › Infectious Diseases › Parasitic Diseases Research and Treatment
Keywords
Schistosoma haematobium, schistosomiasis, energy metabolism, purine metabolism, serum metabolite profiles, praziquantel treatment, preschool children, infection intensity, malnutrition, host-parasite interactions
MeSH terms
Animals, Anthelmintics, Child, Preschool, Energy Metabolism, Female, Humans, Male, Praziquantel, Purines, Schistosoma haematobium, Schistosomiasis haematobia

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