| AZI | antizyme |
| CAT | cationic amino acid transporter |
| cGMP | cyclic guanosine monophosphate |
| DDAH | dimethylarginine dimethylaminohydrolase |
| DNA | dezoxyribonucleic acid |
| FF | follicular fluid |
| FOXO3a | forkhead box O3 |
| 5-HT | 5- hydroxyl- tryptamine (serotonin) |
| hCG | human chorionic gonadotropin |
| IDO | indoleamine-2,3-dioxygenase |
| IVF | in vitro fertilization |
| L-NA | Nitro-l-arginine |
| L-NAME | Nitro-l-arginine methyl ester |
| MMA | mono-methylarginine |
| mRNA | messenger ribonucleic acid |
| NO | nitric oxide |
| NOS | nitric oxide synthase |
| ODC | ornithine decarboxylase |
| PRMT | protein arginine methyltransferase |
| ROS | reactive oxygen species |
| SAH | S-adenosylhomocysteine |
| SAM | S-adenosylmethionine |
| SDMA | symmetric dimethylarginine |
| sGC | soluble guanylate cyclase |
| SLC | solute carrier |
| cGMP | cyclic guanosyl monophosphate |
| DDAH | dimethylarginine dimethylaminohydrolase |
| DNA | dezoxyribonucleic acid |
| FF | follicular fluid |