| ACPAs | Anticitrullinated protein antibodies |
| α-synuclein | Alpha-synuclein |
| ALS | Agglutinin-like sequence |
| AD | Alzheimer’s disease |
| BBB | Blood–brain barrier |
| CaF2 | Calcium fluoride |
| CD | Crohn’s Disease |
| CH3SH | Methyl mercaptan |
| CH3SSCH3 | Dimethyl sulfide |
| CPC | Cetylpyridinium chloride |
| CVD | Cardiovascular disease |
| EPS | Extracellular polymer |
| F− | Fluoride ions |
| FAP | Fluorapatite |
| GPI | Glycosylphosphatidylinositol |
| HA | Hydroxyapatite |
| HF | Hydrogen fluoride |
| HWP1 | Hyphal wall protein |
| HSPs | Heat shock proteins |
| IBD | Inflammatory bowel disease |
| IL | Interleukin |
| LDH | Lactate dehydrogenase |
| LPS | Lipopolysaccharide |
| LtxA | Leukotoxin A |
| MMP9 | Matrix metalloproteinase 9 |
| nAChRs | Nicotine acetylcholine receptors |
| NETs | Neutrophil extracellular traps |
| NF-κB | Nuclear factor kappa-B |
| NGS | Next-Generation Sequencing |
| OH− | Hydroxyl ions |
| PD | Parkinson’s Disease |
| PPAD | Porphyromonas gingivalis peptidylarginine deiminase |
| RA | Rheumatoid arthritis |
| RS. | Thiol radicals |
| RSH | Thiol compounds |
| RSSR | Disulfides |
| RT-PCR | Quantitative Real-Time PCR |
| SAPs | Secreted aspartyl proteinases |
| SLE | Systemic Lupus Erythematosus |
| SspB | Surface protein SspB |
| Th | T helper |
| VSCs | Volatile sulfur compounds |