Table 1.

Significance testing and putative MSⁿ identifications for lipids in perfused and infarcted zones of cardiac tissue.

m/z	Infarcted Signal/TIC	Perfused Signal/TIC	Pooled Standard Deviation	Direction	t	MSn Identification	Ion
273	0.01490	0.01330	0.00176	↓	1.12	DHB	[2M-2H2O+H]+
459	0.00088	0.00037	0.00019	↑	3.26†	LPC 16:0	[M-C3H9N+Na]+
487	0.00163	0.00051	0.00049	↑	2.80†	LPC 18:0	[M-C3H9N+Na]+
496	0.00236	0.00085	0.00077	↑	3.84‡	LPC 16:0	[M+H]+
518	0.00297	0.00083	0.00053	↑	4.97‡	LPC 16:0	[M+Na]+
520	0.00261	0.00069	0.00080	↑	2.96†	LPE 18:0 LPC 18:2	[M+K]+ [M+H]+
524a	0.00748	0.00196	0.00208	↑	3.26†	LPC 18:0	[M+H]+
534	0.00130	0.00072	0.00037	↑	1.91	LPC 16:0	[M+K]+
544	0.00317	0.00241	0.00028	↑	3.29†	LPC 18:1 LPC 20:4	[M+Na]+ [M+H]+
546	0.00619	0.00150	0.00134	↑	4.29‡	LPC 18:0	[M+Na]+
782	0.00571	0.00600	0.00085	↓	0.41	PC (16:0/18:1)	[M+Na]+
810	0.00651	0.00612	0.00056	↑	0.85	PC (18:0/18:1)	[M+Na]+
832	0.00767	0.01190	0.00196	↓	2.64*	PC (18:0/20:4)	[M+Na]+
848	0.00350	0.00818	0.00029	↓	19.50‡	PC (18:0/20:4)	[M+K]+

^*Significant at 95% confidence interval

^†Significant at 98% confidence interval

^‡Significant at 99% confidence interval

^aUnidentified isobaric LPE also present