1. A2-Adrenoceptor
2. Acetylcholine
3. Acetylcholine M3 Receptors
4. AMPA-Receptors
5. Basophil Histamine
6. Bone Marrow H4 Histamine Receptor
7. cAMP Response Element (CRE)
8. CNS tissue H1 Histamine Receptor
9. Colon H4 Histamine Receptor
10. Diacylglycerol
11. Dopamine
12. Endothelium H1 Histamine Receptor
13. Enterochromaffin-Like (ECL) Cell
14. G Protein-Coupled Receptors
15. G1-Coupled Receptors
16. GABAA-Receptors
17. Gastrin CCK2 Receptors
18. Gq-Coupled Muscarinic M1 Receptors
19. H1 Histamine Receptor
20. H2 Histamine Receptor
21. H3 Histamine Receptor
22. H4 Histamine Receptor
23. Histamine
24. Histamine-N-Methyltransferase
25. Histaminergic Neurons
26. Histidine
27. Histidine Decarboxylase
28. Histiminase - Diamine Oxidase
29. Hypocretins
30. Inositol-1,4,5-Trisphosphate
31. Mast Cell Histamine
32. Mast Cells
33. Mitogen-Activated Protein (MAP) Kinases
34. Neuropeptide Galanin
35. Nicotinic Acetylcholine Receptors (nAChRs)
36. Nitric Oxide
37. NMDA-Receptors
38. N-Methylhistamine
39. Non-Mast Cell Histamine
40. Norepinephrine
41. nPKC
42. Orexins
43. Parietal Cells H2 Histamine Receptor
44. Phosphatidylinositol 4,5-Bisphosphate
45. Phospholipase Cb
46. PKC-A
47. PKC-B1
48. PKC-B2
49. PKC-Y
50. Posterior Hypothalamus Neurons
51. S-Adenosyl Methionine
52. Serotonin
53. Serum Response Element (SRE)
54. Small Intestine H4 Histamine Receptor
55. Smooth Muscle H1 Histamine Receptor
56. Spleen H4 Histamine Receptor
57. Thymus H4 Histamine Receptor
58. Tuberomammillary Nuclei
59. Tyrosine Kinase Growth Factor Receptors
60. Vesicular Monoamine Transporter 2 (VMAT2)