Table 2.

Plasma amino acid profile of persistent atrial fibrillation patients and their control

Amino acid	Control (n = 30)	Atrial fibrillation (n = 30)	P
Alanine	134.2 ± 41.86	124.1 ± 59.3	0.448
Arginine	91.2 ± 50.6	80.1 ± 3.6	0.240
Asparagine	51.4 ± 12.5	48.3 ± 7.0	0.246
Aspartic acid	25.9 ± 3.9	25.4 ± 1.4	0.499
Citrulline	34.5 ± 2.0	34.3 ± 2.1	0.736
Cystine	43.8 ± 1.8	43.3 ± 0.4	0.177
Glutamic acid	25.7 ± 3.2	27.8 ± 2.5	0.008
Glycine	20.9 ± 23.8	5.7 ± 12.0	0.003
Histidine	61.4 ± 4.1	62.9 ± 4.2	0.160
Homocysteine	45.7 ± 0.1	45.8 ± 0.5	0.655
Isoleucine	84.8 ± 17.9	96.8 ± 17.9	0.014
Leucine	50.0 ± 5.5	50.2 ± 4.6	0.883
Lysine	44.3 ± 3.7	47.7 ± 3.6	0.001
Methionine	50.3 ± 1.6	51.4 ± 1.5	0.008
Phenylalanine	65.7 ± 7.0	68.3 ± 8.6	0.196
Proline	112.4 ± 23.1	105.0 ± 33.0	0.318
Serine	8.9 ± 4.5	10.4 ± 4.7	0.211
Threonine	38.3 ± 7.5	37.8 ± 7.2	0.817
Tryptophan	59.1 ± 6.5	60.9 ± 7.6	0.326
Tyrosine	62.8 ± 5.0	67.3 ± 6.0	0.002
Trans-4-Hydroxy-L-Proline	29.6 ± 2.2	29.9 ± 2.6	0.684
Valine	95.8 ± 19.3	98.8 ± 20.8	0.570