Table 2.

Concentrations of Proteins and Elements Determined in the Tear Film of AMD Patients and Control Subjects

	Control	AMD	Fold-change	P Value
Protein concentrations
Lactoferrin (average ± SD, mg/mL)	11.81 ± 3.98	8.11 ± 3.47	0.7	0.004
S100A6 (average ± SD, ng/mL)	409.8 ± 158.9	568.59 ± 321.9	1.4	0.03
CFH (average ± SD, ng/mL)	1692 ± 1167	2051 ± 1573	1.2	0.3
Clusterin (average ± SD, mg/mL µg/mL)	29.33 ± 13.01	35.99 ± 14.94	1.2	0.09
APP (average ± SD, ng/mL)	176.71 ± 76.04	161.88 ± 69.86	0.9	0.3
MT1A (average ± SD, ng/mL)	154.45 ± 36.56	293.55 ± 214.00	1.9	0.006
Element concentrations
Na (average ± SD, µg/mL)	2125 ± 524	1783 ± 678	0.8	0.09
Mg (average ± SD, µg/mL)	9.74 ± 3.68	6.50 ± 3.27	0.7	0.01
P (average ± SD, µg/mL)	3.95 ± 2.25	2.94 ± 2.14	0.7	0.2
Ca (average ± SD, µg/mL)	23.98 ± 9.15	22.46 ± 12.91	0.9	0.7
Fe (average ± SD, µg/mL)	3.53 ± 2.01	2.13 ± 1.37	0.6	0.03
Cu (average ± SD, µg/mL)	0.17 ± 0.07	0.11 ± 0.04	0.7	0.009
Zn (average ± SD, µg/mL)	0.36 ± 0.26	0.27 ± 0.21	0.7	0.3