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. 2022 Apr 20;14(5):901. doi: 10.3390/pharmaceutics14050901

Figure 6.

Figure 6

Effects of Li and aspirin co-administration onhippocampal levels of IL-6 and TNF-α. Rats were fed regular food (control) or Li-containing food (0.1%) for 42 days. Low-dose aspirin (1 mg/kg, ip) was given alone or together with Li. On days 21 (a,c) and 42 (b,d) of the treatment protocol, 2 h before sacrifice, LPS (1 mg/kg) was administered as described under Materials and Methods. Determination of IL-6 and TNF-α was done using specific ELISA kits. Results are means ± SEM of a representative experiment out of two demonstrating a similar pattern, with eight rats/group. (a) HC IL-6 levels on day 21: One-way ANOVA, F = 5.421, p < 0.0001. Post-hoc Fisher’s LSD test: Control vs. Li, ASA and Li + ASA, p < 0.003; Control vs. LPS and LPS + Li, NS; Control vs. LPS + ASA and LPS + Li + ASA, p < 0.024; LPS vs. LPS + Li, NS; LPS vs. LPS + ASA and LPS + Li + ASA, p < 0.011; LPS + Li vs. LPS + ASA and LPS + Li + ASA, p < 0.045; LPS + ASA vs. LPS + Li + ASA, NS. (b) HC IL-6 levels on day 42: One-way ANOVA, F = 5.439, p < 0.0001. Post-hoc Fisher’s LSD test: Control vs. LPS and LPS + Li + ASA, p < 0.005; Control vs. LPS + Li and LPS + ASA, NS; LPS vs. LPS + Li, LPS + ASA and LPS + Li + ASA p < 0.0002; LPS + Li vs. LPS + ASA, NS; LPS + Li vs. LPS + Li + ASA, p = 0.025; LPS + ASA vs. LPS + Li + ASA, NS. (c) HC TNF-α levels on day 21: One-way ANOVA, F = 2.270, p = 0.042. Post-hoc Fisher’s LSD test: Control vs. Li, Li + ASA, LPS, LPS + Li, NS; Control vs. LPS + ASA and LPS + Li + ASA, p < 0.01; LPS vs. LPS + Li, NS; LPS vs. LPS + ASA and LPS + Li + ASA, p < 0.013; LPS + Li vs. LPS + ASA and LPS + Li + ASA, NS; LPS + ASA vs. LPS + Li + ASA, NS. (d) HC TNF-α on day 42: One-way ANOVA, F = 8.160, p < 0.0001. Post-hoc Fisher’s LSD test: Control vs. LPS, p < 0.0001; Control vs. LPS + Li, LPS + ASA and LPS + Li + ASA, NS; LPS vs. LPS + Li, LPS + ASA and LPS + Li + ASA, p < 0.002; LPS + Li vs. LPS + ASA, NS; LPS + Li vs. LPS + Li + ASA, p = 0.005; LPS + ASA vs. LPS + Li + ASA, NS. Asterisks and symbols denote the following: * p < 0.05 vs. Control, # p < 0.05 vs. LPS; ^ p < 0.05 vs. LPS + Li. Abbreviations: ASA—acetylsalicylic acid, Li—lithium, LPS—lipopolysaccharide, NS—nonsignificant.