BMC Complementary Medicine and Therapies

Table 4 Inhibitory activities of three extracts of H. zeyheri on the expression of cytokines (TNF-α, IL10) and cell viability in human U937 macrophages at 50 μg/mL concentration

From: In vitro antioxidant activity of crude extracts of Harpagophytum zeyheri and their anti-inflammatory and cytotoxicity activity compared with diclofenac

Extract	TNF-α (pg/mL)	IL-10 (pg/mL)	Cell viability (%)
Ethyl acetate	47.92 ± 0.69^a	7.95 ± 0.05^a	98.96 ± 2.16^a
Ethanol	164.07 ± 0.74^b	8.63 ± 0.37^a	99.27 ± 4.02^a
Water	217.13 ± 3.24^c	8.06 ± 0.48^a	99.97 ± 2.48^a
Diclofenac	44.49 ± 6.62^a	8.42 ± 0.30^a	25.11 ± 1.24^b
Quercetin	73.06 ± 1.94^d	31.55 ± 2.69^b	49.48 ± 5.51^c

Values with different superscript letters in each column are significantly different at p < 0.05

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