| ACE2 | Angiotensin-Converting Enzyme |
| AKI | Acute Kidney Injury |
| AKP | Alkaline Phosphating |
| ALT | Alanine Aminotransferase |
| ARDS | Acute Respiratory Distress Syndrome |
| AST | Aspartate Aminotransferase |
| CCL2 | Chemokine Ligand 2 |
| CGRP | Calcitonin Gene-Related Peptide |
| CNS | Central Nervous System |
| COVID-19 | Coronavirus Disease-19 |
| COX-2 | Cyclooxygenase-2 |
| CSF | Fluid Cerebrospinal Analysis |
| CTSI | Catepsine-1 |
| CXCL10 | C-X-C motif ligand (CXCL)10 |
| DAD | Diffuse Alveolar Damage |
| DIC | Disseminated Intravascular Coagulation |
| FDA | Food and Drug Administration Agency |
| GGT | Gamma-Glutamyl Transferase |
| GM-CSF | Granulocyte-Macrophage Colony Stimulating Factor |
| GPR55 | G-Protein-Coupled Receptors 55 |
| HEV | Porcine Hemagglutinating Encephalomyelitis |
| HIF | Hypoxia-Inducible Factor |
| IKCa | High Conductance Potassium Channels |
| IL | Interleukin |
| iNOS | Inducible Nitric Oxide Synthase |
| MERS-CoV | Middle East Respiratory Syndrome Coronavirus Infection |
| MOF | Multiorgan Failure |
| NBC | Natural Bioactive Compound |
| Nf-kβ | Nuclear Factor Kappa-Light-Chain-Enhancer of Activated B Cells |
| PEA | Palmitoylethanolamide |
| PG | Prostaglandin |
| PPARα | Peroxisome Proliferator-Activated Receptor α |
| PT | Prothrombin Time |
| RT-PCR | Reverse Transcriptase Polymerase Chain Reaction |
| SARS-CoV-2 | Severe Acute Respiratory Syndrome Coronavirus-2 |
| TLRs | Toll-Like Receptors |
| TMPRSS2 | Transmembrane Serine Protease 2 |
| TNF-α | Tumor Necrosis Factor-Α |
| TRP | Transient Receptor Potential |
| um-PEA | Ultramicronized Palmitoylethanolamide |