title: Myocardial Dysfunction: A Primary Cause of Death Due To Severe Malaria in A Plasmodium falciparum-Infected Humanized Mouse Model.
abstract: BACKGROUND
  Our study aimed at substantiating the recent claim of myocardial complications in severe malaria by experimentally inducing severe Plasmodium falciparum infection in a humanized mouse model employed as human surrogate.
  
  
  METHODS
  Twenty five humanized mice were inoculated with standard in vitro cultured P. falciparum and blood extracts collected from the inner cardiac muscles of infected mice that died were examined for the presence of the infectious cause of death. The therapeutic effect of quinine on 7 mice severely infected with P. falciparum was also evaluated.
  
  
  RESULTS
  All the 25 humanized mice inoculated with the in vitro cultured P. falciparum revealed peripheral parasitemia with a total of 10 deaths recorded. Postmortem examination of the inner cardiac muscles of the dead mice also revealed massive sequestration of mature P. falciparum as well as significant infiltration of inflammatory cells such as lymphocytes and monocytes. Postmortem evaluation of the inner cardiac muscles of the P. falciparum-infected mice after quinine therapy showed significant decline in parasite density with no death of mice recorded.
  
  
  CONCLUSIONS
  Data obtained from our study significantly corroborated the findings of myocardial dysfunction as the primary cause of death in recent case reports of humans infected with P. falciparum.
authors.affiliation: Department of Biological Sciences, College of Natural & Applied Sciences, Igbinedion University, Okada, Edo State, Nigeria.
authors.forename: Odaro
authors.initials: O
authors.lastname: Stanley Imade
authors.affiliation: Microbiology Department, Faculty of Life Sciences, University of Benin, Benin City, Edo State, Nigeria.
authors.forename: Faith
authors.initials: F
authors.lastname: Iguodala Akinnibosun
authors.affiliation: Department of Medical Microbiology, College of Health Sciences, Igbinedion University, Okada, Edo State, Nigeria.
authors.forename: Bankole
authors.initials: B
authors.lastname: Henry Oladeinde
authors.affiliation: Chemistry Department, Faculty of Chemical Sciences, University of Benin, Benin City, Nigeria.
authors.forename: Osaro
authors.initials: O
authors.lastname: Iyekowa
keywords: Humanized; Immunosuppressed; Myocardial; Parasitemia; Therapy