Table 2 Brain/perfusion ratio of dipeptides in mouse perfusion experiments
Peptide | log P | Brain/Perfusate Ratio (μL/g-wet brain) | Ki (μL/g-min) |
|---|---|---|---|
FITC-albumin |  | 6.46 ± 0.15 | - 0.52 ± 0.50 |
Trp-Leu | 1.623 | no uptake | - |
Leu-Trp | 1.019 | no uptake | - |
Trp-Met | 1.004 | no uptake | - |
Trp-Tyr | 0.212 | no uptake | - |
Tyr-Pro | 0.202 | 10.5 ± 1.3 | 3.53 ± 0.74 |
Ile-Tyr | -0.249 | no uptake | - |
Leu-Tyr | -0.249 | no uptake | - |
Pro-Tyr | -0.398 | no uptake | - |
His-Leu | -0.477 | no uptake | - |
Trp-His | -0.555 | no uptake | - |
Gly-Pro | -0.602 | 10.85 ± 0.99 | 3.49 ± 0.66 |
Val-Tyr | -0.758 | no uptake | - |
His-Pro | -0.881 | no uptake | - |
Met-Tyr | -0.888 | no uptake | - |
Leu-Hisa | -1.016 | no uptake | - |
Tyr-Hisa | -1.164 | no uptake | - |
Tyr-Arga | -1.269 | no uptake | - |
Ser-Pro | -1.634 | no uptake | - |
Gly-Sar | -1.651 | 24.54 ± 1.78 | 7.60 ± 1.29 |
Ser-Tyra | -2.371 | no uptake | - |
Ala-Gln | -2.581 | no uptake | - |
Ala-Glua | -2.581 | no uptake | - |
Ser-Hisa | -3.139 | no uptake | - |