Research Article
Evaluation of the Protoscolicidal Activity of Humulus lupulus Methanolic Extracts on Echinococcus granulosus Sensu Stricto
Figure 3
Scanning electron microscopy of E. granulosus s.s. protoscoleces incubated in vitro with the different Humulus lupulus varieties. Control protoscoleces show the characteristic structure: soma (s), suckers (su) and rostellum (r) (a, b). Protoscoleces treated during 3 days with the variety Mapuche (c) and during 6 days with Victoria (d) showed soma contraction and altered microtriches. After 18 days of treatment with both varieties, protoscoleces were completely altered (e, f).
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