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<p>We investigated the role of uric acid in the pathogenesis of severe malaria (SM) in two independent cohorts of children with SM. Hyperuricemia (blood uric acid ≥ 7 mg dl<sup>−1</sup>) was present in 25% of children with SM and was associated with increased in-hospital mortality and postdischarge mortality in both cohorts. Increased blood uric acid levels were also associated with worse scores in overall cognition in children with SM &lt; 5 years old in both cohorts. Hemolysis of infected red blood cells and impaired renal excretion of uric acid were the primary drivers of hyperuricemia in SM. Hyperuricemia was associated with multiple complications of SM, including acute kidney injury, acidosis, impaired perfusion, coma and intestinal injury with increases in the abundance of Gram-negative uricase-producing pathobionts (<i>Escherichia</i> and <i>Shigella</i>) in the stool. Clinical trials evaluating uric acid-lowering medications as adjunctive therapy for children with SM should be considered to improve survival and protect neurodevelopment.</p>

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Elevated uric acid levels, mortality and cognitive impairment in children with severe malaria

  • 期刊论文

  • 发表日期：

    2025年1月24日

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  • Caitlin Bond,
  • Olivia J. Bednarski,
  • Dibyadyuti Datta,
  • Ruth Namazzi,
  • Robert O. Opoka,
  • Giselle Lima-Cooper,
  • Anthony Batte,
  • Keerthi Udumula,
  • Deepali Balasubramani,
  • Marilyn Vasquez,
  • Ana Rodriguez,
  • Claire Liepmann,
  • Paul Bangirana,
  • Marco Abreu,
  • Tae-Hwi Schwantes-An,
  • Yi Zhao,
  • Tarek M. El-Achkar,
  • Nathan W. Schmidt,
  • Chandy C. John,
  • Andrea L. Conroy

摘要

We investigated the role of uric acid in the pathogenesis of severe malaria (SM) in two independent cohorts of children with SM. Hyperuricemia (blood uric acid ≥ 7 mg dl−1) was present in 25% of children with SM and was associated with increased in-hospital mortality and postdischarge mortality in both cohorts. Increased blood uric acid levels were also associated with worse scores in overall cognition in children with SM < 5 years old in both cohorts. Hemolysis of infected red blood cells and impaired renal excretion of uric acid were the primary drivers of hyperuricemia in SM. Hyperuricemia was associated with multiple complications of SM, including acute kidney injury, acidosis, impaired perfusion, coma and intestinal injury with increases in the abundance of Gram-negative uricase-producing pathobionts (Escherichia and Shigella) in the stool. Clinical trials evaluating uric acid-lowering medications as adjunctive therapy for children with SM should be considered to improve survival and protect neurodevelopment.