Table 1

Phospholipid group	Species*	m/z	Mol % of total polar lipids†
Phospholipid group	Species*	m/z	Control	PE	PE+IGF-1
PI	36:1	863.6	0.400±0.545^a	0.691±0.517^b	0.113±0.134^a
	36:3	859.9	0.039±0.005^a	0.005±0.001^b	UD^b
	38:4	885.5	6.237±2.036^a	4.383±0.681^b	5.572±0.430^a,b
LysoPC	20:3	546.5	UD^a	0.003±0.002^a	0.028±0.017^b
	20:4	544.3	0.258±0.047^a,b	0.137±0.012^b	0.343±0.110^a
	20:5	542.3	UD^a	UD^a	0.006±0.004^b
	22:5	570.4	0.009±0.006^a,b	UD^b	0.023±0.019^a
LysoPE	20:4	502.3	0.013±0.006^a,b	0.024±0.004^a	0.006±0.004^b
LysoPE	22:5	528.3	0.007±0.004^a,b	0.009±0.005^a	UD^b
ePC	36:1	774.6	0.204±0.053^a	0.316±0.036^b	0.323±0.048^b
ePE	32:1	676.5	UD^a	0.005±0.002^b	UD^a
	38:1	760.6	0.010±0.006^a,b	UD^b	0.024±0.008^a
	38:2	758.6	0.357±0.008^a	0.496±0.044^b	0.481±0.018^b
	40:3	784.6	UD^a	0.008±0.004^b	UD^a
	40:4	782.6	0.073±0.005^a	0.163±0.020^b	0.159±0.006^a
ePS	34:1	746.5	0.021±0.010^a	0.009±0.005^a,b	UD^b
	38:0	804.5	UD^a	0.011±0.004^b	UD^a
	38:2	800.6	0.026±0.018^a	0.071±0.016^b	0.061±0.018^b
	38:3	798.6	0.003±0.002^a,b	UD^b	0.011±0.005^a
	40:1	830.5	0.011±0.008^a,b	0.044±0.014^a	UD^b
	40:4	824.6	0.016±0.010^a	0.052±0.012^b	0.046±0.024^a,b

*Total acyl carbons:total double bonds (UD: undetectable values if less than 0.002 mol%);
†Results are means ± SE (n = 5-7 per group). Means with different letters differ significantly, P ≤ 0.05.

Table 1: Effects of restoration IGF-1 on the profile of phospholipids in the mouse skin tissues.