Table 1.
Content of kynurenic acid (KYNA) in human breast milk and in artificial nutritional formulas.
| Human breast milk | Artificial nutritional formula | |||
|---|---|---|---|---|
| Breastfeeding period | KYNA content [µg/L] | Feeding period [month] | KYNA content [µg/L] | p < versus respective human milk |
| 3 day | 3.9 ± 0.6 | 0–3 | 5.0 ± 0.7 | NS |
| 6 day | 10.7 ± 2.3 | 0.05 | ||
| 14 day | 21.1 ± 3.4* | 0.001 | ||
| 1 month | 37.4 ± 4.5* | 0.001 | ||
| 3 month | 41.5 ± 5.5* | 0.001 | ||
| 4 month | 43.1 ± 4.8* | 4–5 | 4.8 ± 1.0 | 0.001 |
| 5 month | 47.5 ± 8.9* | 0.001 | ||
| 6 month | 56.6 ± 8.6* | 6–over | 7.3 ± 0.9 | 0.001 |
Data are presented as mean ± SEM; t-Student test: *p < 0.05 versus 3 day.