| Similarity | Rank | |
|---|---|---|
| receptor | 0.938 | 14395 |
| neurotransmitters | 0.886 | 32872 |
| excitatory | 0.878 | 83741 |
| norepinephrine | 0.877 | 48622 |
| acetylcholine | 0.876 | 55829 |
| neurotransmitter | 0.875 | 35288 |
| agonists | 0.872 | 51620 |
| dopamine | 0.870 | 20815 |
| adrenergic | 0.868 | 99859 |
| inhibitory | 0.867 | 40723 |
| cytokines | 0.855 | 41712 |
| cholinergic | 0.853 | 88546 |
| tyrosine | 0.853 | 48168 |
| dopaminergic | 0.853 | 78727 |
| serotonin | 0.852 | 18868 |
| histamine | 0.842 | 49266 |
| synapse | 0.841 | 71012 |
| agonist | 0.841 | 48851 |
| hypothalamic | 0.838 | 92743 |
| endogenous | 0.838 | 37955 |
| hypothalamus | 0.837 | 40919 |
| inhibition | 0.835 | 20446 |
| extracellular | 0.831 | 42953 |
| GABA | 0.831 | 46769 |
| cannabinoid | 0.830 | 90158 |