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. 2015 Feb 12;2015:617401. doi: 10.1155/2015/617401

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Copyright © 2015 João S. B. da Luz et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Scanning electron micrographs of Leishmania infantum chagasi promastigotes exposed to usnic acid. (a) Control group (no treatment); (b, c, d, e, and f) treated group usnic acid at a concentration of 25 μg/mL for 72 hours. Blebs on the surface of promastigotes (thin arrows), membrane rupture (full arrow), swelling (asterisk), and the formation pore (arrowhead). Bars: 1 μm (a, d); 2 μm (c, e and f). Magnifications: (a) 11.000x, (b) 5.000x, (c) 8.000x, (d) 13.000x, (e) 5.500x, and (f) 8.500x.