Table 5.
Effect of dietary Spirulina platensis phycocyanin (SPC) addition on serum antioxidant and inflammatory indices.
| SPC0 | SPC0.25 | SPC0.5 | SPC0.75 | SPC1 | Regression # | ||
|---|---|---|---|---|---|---|---|
| Linear | Quadratic | ||||||
| TAC (U/mL) | 9.69 ± 0.63 c | 11.59 ± 1.51 b | 13.11 ± 0.81 ab | 13.12 ± 0.46 ab | 13.69 ± 0.41 a | <0.01 | 0.04 |
| CAT (U/mL) | 2.57 ± 0.45 b | 5.03 ± 1.92 a | 6.50 ± 0.57 a | 6.43 ± 0.55 a | 6.57 ± 0.60 a | <0.01 | 0.02 |
| SOD (U/mL) | 135.96 ± 3.34 b | 152.21 ± 8.28 a | 156.32 ± 1.97 a | 162.44 ± 3.39 a | 153.49 ± 9.03 a | 0.01 | 0.02 |
| MDA nmol/mL | 4.59 ± 0.39 a | 4.60 ± 1.18 a | 3.63 ± 0.75 b | 3.17 ± 0.90 b | 3.43 ± 0.71 b | 0.03 | 0.59 |
| Serum IL1β (μg/mL) | 155 ± 11.79 | 157 ± 12.12 | 142 ± 6.08 | 157 ± 15.13 | 165 ± 7.94 | 0.35 | 0.11 |
# The regressions were considered significant at p ≤ 0.05. a,b,c Mean values in the same column with different superscripts differ significantly (p < 0.05). TAC: total antioxidant capacity, CAT: catalase, SOD: superoxide dismutase, MDA: malondialdehyde, and IL1β: interleukin 1β. SPC0: control diet (basal diet with no additives); SPC0.25: basal diets supplemented with 0.25 g SPC kg–1 diet; SPC0.5: basal diets supplemented with 0.5 g SPC kg–1 diet; SPC0.75: basal diets supplemented with 0.75 g SPC kg–1 diet; SPC1: basal diets supplemented with 1 g SPC kg–1 diet.