| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Ciliary Neurotrophic Factor | 100 | + | |
| 2 | Nerve Growth Factor | 56 | + | |
| 3 | Glial Cell Line-Derived Neurotrophic Factors | 49 | + | |
| 4 | Brain-Derived Neurotrophic Factor | 49 | + | |
| 5 | Neurotrophin 3 | 40 | + | |
| 6 | Pituitary Adenylate Cyclase-Activating Polypeptide | 28 | + |