| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Nerve Growth Factor | 100 | + | |
| 2 | Neurotrophin 3 | 12 | + | |
| 3 | Brain-Derived Neurotrophic Factor | 10 | + | |
| 4 | Glial Cell Line-Derived Neurotrophic Factors | 8 | + | |
| 5 | Neuregulins | 4 | + | |
| 6 | Pituitary Adenylate Cyclase-Activating Polypeptide | 1 | + |