Research Article

Dual Stimulus-Dependent Effect of Oenothera paradoxa Extract on the Respiratory Burst in Human Leukocytes: Suppressing for Escherichia coli and Phorbol Myristate Acetate and Stimulating for Formyl-Methionyl-Leucyl-Phenylalanine

Figure 3

Mass spectra for catechin, 289.07 (a), epicatechin gallate, 441.08 (b), and PGG, 939.11 (c) obtained with negative ion electrospray ionisation.
764367.fig.003a
(a)
764367.fig.003b
(b)
764367.fig.003c
(c)