Sphingosine 1-Phosphate Distribution in Human Plasma: Associations with Lipid Profiles

Table 2

(a) Concentrations of ceramide species in plasma. (b) Concentrations of ceramide species in lipoprotein-containing fraction (𝑑<1.21 g/mL ultracentrifuge fraction). (c) Concentrations of ceramide species in plasma protein-containing fraction (𝑑>1.21 g/mL ultracentrifuge fraction).

(a)  

Subject	Concentration (nM)
	C14-Cer	C16-Cer	C18-Cer	C18:1-Cer	C20-Cer	C20:1-Cer	C22-Cer	C22:1-Cer	C24-Cer	C24:1-Cer	C26-Cer	C26:1-Cer	dhC16-Cer
1	118	445	87	45	282	14	340	83	2498	1090	112	46	55
2	48	158	80	26	279	13	377	85	2773	1035	117	45	53
3	77	146	68	35	297	8	322	62	2548	728	70	21	53
4	50	250	84	33	156	10	383	78	2994	1325	91	39	62
5	170	548	138	80	420	20	486	111	3975	1476	181	66	103
6	77	182	114	22	493	11	465	83	3001	1084	88	46	36

(b)  

Subject	Concentration (nM)
	C14-Cer	C16-Cer	C18-Cer	C18:1-Cer	C20-Cer	C20:1-Cer	C22-Cer	C22:1-Cer	C24-Cer	C24:1-Cer	C26-Cer	C26:1-Cer	dhC16-Cer
1	121	459	89	66	455	20	405	99	3388	1354	147	57	42
2	57	135	76	24	274	15	394	85	2347	1046	86	41	49
3	71	161	99	38	352	13	311	63	2351	687	61	22	52
4	62	332	56	31	214	10	383	80	2570	1193	88	33	64
5	183	774	116	66	537	27	598	129	4819	1786	201	71	113
6	88	178	121	24	540	13	477	84	3130	1106	94	50	48

(c)  

Subject	Concentration (nM)
	C14-Cer	C16-Cer	C18-Cer	C18:1-Cer	C20-Cer	C20:1-Cer	C22-Cer	C22:1-Cer	C24-Cer	C24:1-Cer	C26-Cer	C26:1-Cer	dhC16-Cer
1	ND	5	8	3	6	ND	27	2	28	16	1.5	0.3	1.3
2	ND	8	9	3	10	0.6	28	6	39	32	2.0	0.8	1.3
3	1.6	11	12	1	4	0.1	24	2	19	13	1.4	ND	1.7
4	ND	2	4	1	3	0.4	25	2	17	22	1.2	ND	0.5
5	2.7	10	17	1	13	0.9	38	7	75	36	1.5	0.6	0.9
6	7.5	15	15	4	14	0.8	27	5	31	28	2.1	0.4	3.5

ND: not detected, Cer: ceramide.