Fig. 4From: Sunlight inhibits growth and induces markers of programmed cell death in Plasmodium falciparum in vitroSunlight caused changes in mitochondrial polarization in Plasmodium falciparum only after 48 h. No change was seen in the mitochondrial polarization of mixed-stage parasites (a) or synchronized late-stage parasites (b) exposed to sunlight for 1 h and maintained in the dark for the remainder of 24 h, compared to control parasites kept in the dark. After a second exposure to solar radiation, mixed-stage parasites showed an apparent increase in mitochondrial polarization at 48 h, compared to parasites maintained in the dark (c). Statistical comparisons were not significant (ns) or significant at P < 0.01 (double asterisk). n = 2 for (a) and (b); n = 4 for (c)Back to article page