Marked Antigiardial Activity of Yucca baccata Extracts: A Potential Natural Alternative for Treating Protozoan Infections

Table 1

Median weight of 35 gerbils allocated in 5 treatment groups at preinfection and day 10 of postinfection during the bioassay.

Butanol extract		Weight at preinfection (g); Median (SE)	Weight at day 10 of postinfection (g); Median (SE)		Weight; (g)
24.4 mg/mL of extract^&	5	52.7 (1.44)	50.3 (1.84)	5	−2.4	0.293
12.2 mg/mL of extract^&	5	48.7 (3.1)	47.5 (3.87)	5	−1.2	0.403
6.1 mg/mL of extract^&	5	56.6 (1.2)	55.6 (1.18)	5	−1.0	0.400
Metronidazole	8	56.0 (2.71)	55.3 (2.62)	8	−0.7	0.636
Untreated	8	52.6 (2.25)	49.9 (2.21)	8	−2.7	0.372

(SE): (Standard error); : *Wilcoxon matched-paired-sum test; Significance at .
3 gerbils died per extract-treated group during the bioassay course.