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Sökning: WFRF:(Moll K) > Wahlgren M

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  • Ch'ng, JH, et al. (författare)
  • Enhanced virulence of Plasmodium falciparum in blood of diabetic patients
  • 2021
  • Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 16:6, s. e0249666-
  • Tidskriftsartikel (refereegranskat)abstract
    • Rising prevalence of diabetes in sub-Saharan Africa, coupled with continued malaria transmission, has resulted more patients dealing with both communicable and non-communicable diseases. We previously reported that travelers with type 2 diabetes mellitus (T2DM) infected with Plasmodium falciparum were three times more likely to develop severe malaria than non-diabetics. Here we explore the biological basis for this by testing blood from uninfected subjects with type 1 and type 2 diabetes, ex vivo, for their effects on parasite growth and rosetting (binding of infected erythrocytes to uninfected erythrocytes). Rosetting was associated with type 2 diabetes, blood glucose and erythrocyte sedimentation rate (ESR), while parasite growth was positively associated with blood glucose, glycated hemoglobin (HbA1c), body mass index (BMI), fibrinogen and triglycerides. This study establishes a link between diabetes and malaria virulence assays, potentially explaining the protective effect of good glycemic control against severe malaria in subjects with diabetes.
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  • Nilsson, S, et al. (författare)
  • Characterization of the Duffy-Binding-Like Domain of Plasmodium falciparum Blood-Stage Antigen 332
  • 2011
  • Ingår i: Malaria research and treatment. - : Hindawi Limited. - 2044-4362. ; 2011, s. 671439-
  • Tidskriftsartikel (refereegranskat)abstract
    • Studies on Pf332, a major Plasmodium falciparum blood-stage antigen, have largely been hampered by the cross-reactive nature of antibodies generated against the molecule due to its high content of repeats, which are present in other malaria antigens. We previously reported the identification of a conserved domain in Pf332 with a high degree of similarity to the Duffy-binding-like (DBL) domains of the erythrocyte-binding-like (EBL) family. We here describe that antibodies towards Pf332-DBL are induced after repeated exposure to P. falciparum and that they are acquired early in life in areas of intense malaria transmission. Furthermore, a homology model of Pf332-DBL was found to be similar to the structure of the EBL-DBLs. Despite their similarities, antibodies towards Pf332-DBL did not display any cross-reactivity with EBL-proteins as demonstrated by immunofluorescence microscopy, Western blotting, and peptide microarray. Thus the DBL domain is an attractive region to use in further studies on the giant Pf332 molecule.
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