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).

(a)

(b)

(c)

(d)

(e)

(f)