Crinum Latifolium Leave Extracts Suppress Immune Activation Cascades in Peripheral Blood … 335 [39] Jenny M, Klieber M, Zaknun D, Schroecksnadel S, Kurz K, Ledochowski M, Schennach H, Fuchs D. In vitro testing for anti-inflammatory properties of compounds employing peripheral blood mononuclear cells freshly isolated from healthy donors. Inflamm Res. 2011; 60: 127–35 doi:10.1007/s00011-010-0244-y [40] Ou B, Hampsh-Woodill M, Prior R. Development and validation of an improved oxygen radical absorbance capacity assay using fluorescein as the fluorescent probe. J Agric Food Chem. 2001; 49: 4619–4626. doi:10.1021/jf010586o [41] Widner B, Werner ER, Schennach H, Wachter H, Fuchs D. Simultaneous measurement of serum tryptophan and kynurenine by HPLC. Clin Chem. 1997; 43: 2424–2426. PMid:9439467 Sci Pharm. 2011; 79: 323–335