Balamuthia amoebic encephalitis: An emerging disease with fatal consequences

Ruqaiyyah Siddiqui, Naveed Ahmed Khan

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

Balamuthia amoebic encephalitis (BAE), caused by the protozoan pathogen, Balamuthia mandrillaris, is a serious human disease with fatal consequences and a mortality rate of more than 95%. A key factor that contributes to the high mortality is the incomplete understanding of its pathogenesis and pathophysiology. The most distressing aspect is that the high level of mortality is due to lack of awareness combined with the lack of effective drugs. Early diagnosis followed by aggressive treatment may lead to cure. Several lines of evidence suggest that BAE develops as a result of haematogenous spread, but it is unclear how circulating amoebae enter the central nervous system and cause inflammation, blood–brain barrier disruption and neuronal injury. Recent studies have identified several parasite–host determinants for B. mandrillaris translocation of the blood–brain barrier, and host inflammatory markers that may be associated with neuronal injury. These determinants may provide important targets for the prevention and treatment of BAE. Here, we present a brief overview of the current understanding of the pathogenesis and pathophysiology of BAE, available diagnostic methods, possible therapeutic interventions and biology of the causative agent.
Original languageEnglish
Pages (from-to)89-97
Number of pages9
JournalMicrobial Pathogenesis
Volume44
Issue number2
DOIs
Publication statusPublished - Feb 2008

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