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Table 1 Nomenclature and probable molecular structures of S1P isoforms quantified in this study

From: Immunomodulatory sphingosine-1-phosphates as plasma biomarkers of Alzheimer’s disease and vascular cognitive impairment

Name

Nomenclature

Formula

Molecular structure

d16:1 S1P

Hexadecasphing-4-enine-1-phosphate

C16H34NO5P

d17:1 S1P

Heptadecasphing-4-enine-1-phosphate

C17H36NO5P

d18:0 S1P

Sphinganine-1-phosphate

C18H40NO5P

d18:1 S1P

Sphing-4-enine-1-phosphate

C18H38NO5P