| AD | Alzheimer’s disease |
| Aβ | Amyloid β peptide |
| Aβ1–42 | Amyloid β peptide 1–42 |
| ACE | Angiotensin converting enzyme |
| βAPP | β-amyloid precursor protein |
| BCA | Bicinchoninic acid |
| HPLC MS/MS | High-performance liquid chromatography tandem mass spectrometry |
| HSD | Honestly significant difference |
| LF | Lactoferrin |
| LFH | Lactoferrin hydrolysate |
| NGM | Nematode growth medium |
| PEP | Prolyl endopeptidase |
| POP | Prolyl oligopeptidase |
| SD | Standard deviation |