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Table 2 Percentage of CD11b/CD18 expression activity (%) of neutrophils at different concentrations of test samples derived from Zingiber zerumbet

From: Standardized ethanol extract, essential oil and zerumbone of Zingiber zerumbet rhizome suppress phagocytic activity of human neutrophils

Sample (μg/mL)

Concentration (μg/mL)

50

12.5

3.13

Z. zerumbet extract (ZZE)

87.67 ± 0.59

89.80 ± 0.66

96.23 ± 1.63

Z. zerumbet essential oil (ZZEO)

91.03 ± 0.63

92.93 ± 1.45

96.10 ± 0.85

 

10

2.5

0.63

Zerumbone (ZER)

72.57 ± 6.45*

76.47 ± 4.80*

86.77 ± 1.77

Positive control

92.47 ± 3.38

  1. Data are presented as mean ± SEM, n = 3. Data were analyzed by one-way ANOVA followed by Dunnet’s post hoc test. Significance of differences with respect to control: *p < 0.05