| 24-OH | 24S-hydroxycholesterol |
| 27-OH | 27-hydroxycholesterol |
| 7HOCA | 7 alpha hydroxy-3-oxo-4-cholestenoic acid |
| DHEA | Cortisone dehydroepiandrosterone |
| 7DHEA | 7 alpha hydroxy dehydroepiandrosterone |
| CSF | Cerebrospinal fluid |
| CYP7B1 | Cytochrome P450 family 7 subfamily B member 1 |
| CYP46 | Cytochrome P450 family 46 |
| iNPH | Idiopathic normal pressure hydrocephalus |
| VP | ventriculoperitoneal |