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cerebral malaria

Brain Magnetic Resonance Imaging Reveals Different Courses of Disease in Pediatric and Adult Cerebral Malaria

December 16, 2020 - 12:16 -- Open Access
Author(s): 
Sahu PK, Hoffmann A, Wassmer SC, et al.
Reference: 
Clin Infect Dis. 2020 Dec 16:ciaa1647

Cerebral malaria is a common presentation of severe Plasmodium falciparum infection and remains an important cause of death in the tropics. Key aspects of its pathogenesis are still incompletely understood, but severe brain swelling identified by magnetic resonance imaging (MRI) was associated with a fatal outcome in African children. In contrast, neuroimaging investigations failed to identify cerebral features associated with fatality in Asian adults.

NOT Open Access | Adults Are Not Big Children: What Brain Magnetic Resonance Imaging Findings Tell Us About Differences in Pediatric and Adult Cerebral Malaria

December 16, 2020 - 10:51 -- NOT Open Access
Author(s): 
John CC
Reference: 
Clin Infect Dis. 2020 Dec 16:ciaa1659

Historically, research studies of infections in children have lagged behind those in adults. There are many reasons for this, including the smaller population of children, resulting in smaller numbers for research studies; a reluctance to subject children to the procedures required and the potential harms from new interventions; and a lack of financial incentive with the smaller market for drugs for pediatric conditions.

NOT Open Access | Eugenol disrupts Plasmodium falciparum intracellular development during the erythrocytic cycle and protects against cerebral malaria

December 16, 2020 - 09:59 -- NOT Open Access
Author(s): 
Pontes KAO, Silva LS, Pinheiro AAS, et al.
Reference: 
Biochim Biophys Acta Gen Subj. 2020 Dec 12:129813

Malaria is a parasitic disease that compromises the human host. Currently, control of the Plasmodium falciparum burden is centered on artemisinin-based combination therapies. However, decreased sensitivity to artemisinin and derivatives has been reported, therefore it is important to identify new therapeutic strategies.

BCG Provides Short-Term Protection from Experimental Cerebral Malaria in Mice

December 16, 2020 - 09:31 -- Open Access
Author(s): 
Witschkowski J, Behrends J, Frank R, Eggers L, von Borstel L, Hertz D, Mueller AK, Schneider BE
Reference: 
Vaccines (Basel). 2020 Dec 9;8(4):E745

Clinical and experimental evidence suggests that the tuberculosis vaccine BCG offers protection against unrelated pathogens including the malaria parasite. Cerebral malaria (CM) is the most severe complication associated with Plasmodium falciparum infection in humans and is responsible for most of the fatalities attributed to malaria. We investigated whether BCG protected C57BL/6 mice from P. berghei ANKA (PbA)-induced experimental CM (ECM).

NOT Open Access | IL-4 Treatment Mitigates Experimental Cerebral Malaria by Reducing Parasitemia, Dampening Inflammation, and Lessening the Cytotoxicity of T Cells

November 28, 2020 - 16:00 -- NOT Open Access
Author(s): 
Wu X, Thylur RP, Dayanand KK, Punnath K, Norbury CC, Gowda DC
Reference: 
J Immunol. 2020 Nov 25:ji2000779

Cytokine responses to malaria play important roles in both protective immunity development and pathogenesis. Although the roles of cytokines such as TNF-α, IL-12, IFN-γ, and IL-10 in immunity and pathogenesis to the blood stage malaria are largely known, the role of IL-4 remains less understood. IL-4 targets many cell types and induces multiple effects, including cell proliferation, gene expression, protection from apoptosis, and immune regulation. Accordingly, IL-4 has been exploited as a therapeutic for several inflammatory diseases.

Not Open Access | EEG markers predictive of epilepsy risk in pediatric cerebral malaria - A feasibility study

November 25, 2020 - 13:29 -- NOT Open Access
Author(s): 
Patel AA, Jannati A, Dhamne SC, Sapuwa M, Kalanga E, Mazumdar M, Birbeck GL, Rotenberg A
Reference: 
Epilepsy Behav. 2020 Nov 21;113:107536

Cerebral malaria (CM) affects 500,000 million children annually, 10% whom develop epilepsy within two years. Acute identification of biomarkers for post-CM epilepsy would allow for follow-up of the highest risk populations in resource-limited regions. We investigated the utility of electroencephalogram (EEG) and clinical metrics obtained during acute CM infection for predicting epilepsy.

PfEMP1 A-Type ICAM-1-Binding Domains Are Not Associated with Cerebral Malaria in Beninese Children

November 19, 2020 - 13:47 -- Open Access
Author(s): 
Joste V, Guillochon E, Fraering J, Vianou B, Watier L, Jafari-Guemouri S, Cot M, Houzé S, Aubouy A, Faucher JF, Argy N, Bertin GI
Reference: 
mBio. 2020 Nov 17;11(6):e02103-20

PfEMP1 is the major antigen involved in Plasmodium falciparum-infected erythrocyte sequestration in cerebrovascular endothelium. While some PfEMP1 domains have been associated with clinical phenotypes of malaria, formal associations between the expression of a specific domain and the adhesion properties of clinical isolates are limited. In this context, 73 cerebral malaria (CM) and 98 uncomplicated malaria (UM) Beninese children were recruited. We attempted to correlate the cytoadherence phenotype of Plasmodium falciparum isolates with the clinical presentation and the expression of specific PfEMP1 domains.

Targeting the CD146/Galectin-9 axis protects the integrity of the blood-brain barrier in experimental cerebral malaria

November 19, 2020 - 13:08 -- Open Access
Author(s): 
Duan H, Zhao S, Xiang J, Ju C, Chen X, Gramaglia I, Yan X
Reference: 
Cell Mol Immunol. 2020 Nov 17

Cerebral malaria (CM) is a life-threatening diffuse encephalopathy caused by Plasmodium falciparum, in which the destruction of the blood-brain barrier (BBB) is the main cause of death. However, increasing evidence has shown that antimalarial drugs, the current treatment for CM, do little to protect against CM-induced BBB damage. Therefore, a means to alleviate BBB dysfunction would be a promising adjuvant therapy for CM.

NOT Open Access | Retinopathy-Positive Cerebral Malaria Is Associated With Greater Inflammation, Blood-Brain Barrier Breakdown, and Neuronal Damage Than Retinopathy-Negative Cerebral Malaria

November 11, 2020 - 14:34 -- NOT Open Access
Author(s): 
Villaverde C, Namazzi R, Shabani E, Park GS, Datta D, Hanisch B, Opoka RO, John CC
Reference: 
J Pediatric Infect Dis Soc. 2020 Nov 10;9(5):580-586

Our prior study findings suggest that Plasmodium falciparum is the cause of disease in both malaria retinopathy-positive (RP) and most retinopathy-negative (RN) cerebral malaria (CM), and that absence of retinopathy and decreased disease severity in RN CM may be due to shorter duration of illness, lower parasite biomass, and decreased var gene expression in RN compared to RP CM. In the present study, we assessed the pathophysiology of RP and RN CM.

"We can't handle things we don't know about": perceived neurorehabilitation challenges for Malawian paediatric cerebral malaria survivors

November 4, 2020 - 14:44 -- Open Access
Author(s): 
Boubour A, Mboma S, Võ T, Birbeck GL, Seydel KB, Mallewa M, Chinguo D, Gladstone M, Mohamed S, Thakur KT
Reference: 
BMC Pediatr. 2020 Nov 3;20(1):503

We sought to identify perceptions of neurorehabilitation challenges for paediatric cerebral malaria (CM) survivors post-hospital discharge at Queen Elizabeth Central Hospital (QECH) in Blantyre, Malawi.

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