Figure 5.
Figure 5. Platelets are not associated with dying parasites during nonresolving, eCM-eliciting PbA in C57BL/6 mice. The analyses were performed in thin blood films fluorescence labeled with anti-CD41 (blue: platelets) and ethidium bromide (red: parasites) and TUNEL (green). (A) Platelet effector-to-target (iRBC) ratios (filled blue square), platelet:uRBC (open green square) ratios, and parasitemia (filled red circle) on left axis and platelet counts/mL (open blue circle) on right axis. (B) Percent PbA parasitemia for all RBCs (red bars) ([#iRBC/#RBC]%) and considering only RBCs with bound platelets (blue bars) ([#platelet:iRBC/#plateletRBC]%). Platelet:RBC indicates a platelet RBC conjugate; the RBC maybe uninfected (uRBC) or infected (iRBC). (C) Percentage of RBCs with bound platelets with uninfected (red bars) ([#platelet:uRBC/#plateletRBC]%) or infected (blue bars) RBCs: ([#platelet:iRBC/#platelet:RBC]%). (D) The percentage of iRBCs with an adherent platelet ([#platelet:iRBC/#iRBCs]%). (E) Representative thin blood film made on day 6PI and fluorescently labeled; blue arrows indicate platelets, red arrows indicate parasites without TUNEL, and yellow arrows indicate parasites with TUNEL (green+red). (F) Percentage on days 4 and 6PI of iRBCs exhibiting TUNEL+ labeling (red bar, x-axis) ([(#TUNEL + iRBCs)/#iRBCs]%) and TUNEL– (green bar, x-axis) ([(#TUNEL − iRBCs)/#iRBCs]%) with the percentage of each iRBC+, TUNEL+ or iRBC+, TUNEL– ([(#platelet:TUNEL − iRBCs)/#iRBCs]%) exhibiting an adherent platelet shown as an inset (blue bar). This experiment was repeated twice (n = 5) and verified by flow cytometry. Values are average ± SEM.

Platelets are not associated with dying parasites during nonresolving, eCM-eliciting PbA in C57BL/6 mice. The analyses were performed in thin blood films fluorescence labeled with anti-CD41 (blue: platelets) and ethidium bromide (red: parasites) and TUNEL (green). (A) Platelet effector-to-target (iRBC) ratios (filled blue square), platelet:uRBC (open green square) ratios, and parasitemia (filled red circle) on left axis and platelet counts/mL (open blue circle) on right axis. (B) Percent PbA parasitemia for all RBCs (red bars) ([#iRBC/#RBC]%) and considering only RBCs with bound platelets (blue bars) ([#platelet:iRBC/#plateletRBC]%). Platelet:RBC indicates a platelet RBC conjugate; the RBC maybe uninfected (uRBC) or infected (iRBC). (C) Percentage of RBCs with bound platelets with uninfected (red bars) ([#platelet:uRBC/#plateletRBC]%) or infected (blue bars) RBCs: ([#platelet:iRBC/#platelet:RBC]%). (D) The percentage of iRBCs with an adherent platelet ([#platelet:iRBC/#iRBCs]%). (E) Representative thin blood film made on day 6PI and fluorescently labeled; blue arrows indicate platelets, red arrows indicate parasites without TUNEL, and yellow arrows indicate parasites with TUNEL (green+red). (F) Percentage on days 4 and 6PI of iRBCs exhibiting TUNEL+ labeling (red bar, x-axis) ([(#TUNEL + iRBCs)/#iRBCs]%) and TUNEL (green bar, x-axis) ([(#TUNEL − iRBCs)/#iRBCs]%) with the percentage of each iRBC+, TUNEL+ or iRBC+, TUNEL ([(#platelet:TUNELiRBCs)/#iRBCs]%) exhibiting an adherent platelet shown as an inset (blue bar). This experiment was repeated twice (n = 5) and verified by flow cytometry. Values are average ± SEM.

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