| TRP | Transient-receptor potential |
| CGRP | Calcitonin gene-related peptide |
| BoNTA | onabotulinum toxin A |
| IHS | International Headache Society |
| ICHD | International Classification of Headache Disorders |
| GBD | Global Burden of Disease |
| NSAID | Non-steroidal anti-inflammatory drugs |
| ACE | Angiotensin-converting enzyme |
| GWAS | Genome-wide association study |
| SNP | Single nucleotide polymorphism |
| RAMP | Receptor-activity modifying protein |
| RCP | Receptor component protein |
| PAR-2 | Protease-activated receptor type 2 |
| H2S | Hydrogen sulfide |
| NO | Nitric oxide |
| HNO | Nitroxyl |
| MAP | Mitogen-activated protein |
| GTN | Glyceryl trinitrate |
| NADPH | Nicotinamide adenine dinucleotide phosphate |
| CFA | Complete Freund’s adjuvant |
| SNAP-25 | Synaptosomal-associated protein 25 |
| Munc | Mammalian uncoordinated |
| VAMP | Vesicle-associated membrane protein |
| TNF | Tumor necrosis factor |
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