Amino acid uptake in arterio-venous serum of normal and cancerous colon tissues

Table 2 Relationship between A-V amino acid uptake rates and tumor size in colon cancer

Amino acid	Tumor size < 5.0 cm		Tumor size > 5.0 cm		P value
	Sample number	R1 (%)	Sample number	R1 (%)
Threonine	7	35.25 ± 10.13	9	42.37 ± 7.81	0.58
Phenylalanine	7	25.44 ± 10.63	9	26.89 ± 3.81	0.889
Leucine	7	33.02 ± 12.85	9	39.30 ± 6.53	0.648
Isoleucine	6	30.09 ± 16.48	9	30.99 ± 4.34	0.95
Methionine	7	13.53 ± 7.47	9	9.99 ± 8.79	0.772
Valine	7	27.63 ± 8.37	9	37.99 ± 8.50	0.408
Lysine	7	21.17 ± 14.07	9	28.76 ± 7.36	0.618
Histidine	7	25.41 ± 10.03	9	33.26 ± 7.26	0.528
Proline	4	10.05 ± 9.81	7	4.45 ± 7.19	0.653
Glutamine	7	25.45 ± 8.69	9	13.44 ± 11.93	0.455
Ammonia	7	13.92 ± 9.08	9	2.47 ± 7.08	0.179
Alanine	7	14.97 ± 1.56	9	20.64 ± 7.72	0.679
Glycine	7	30.04 ± 1.14	9	28.52 ± 11.24	0.926
Cystine	7	20.82 ± 0.69	8	7.23 ± 10.54	0.329
Arginine	7	21.68 ± 7.09	9	34.73 ± 9.06	0.485
Serine	7	25.40 ± 3.22	9	38.71 ± 9.36	0.836
Tyrosine	7	24.90 ± 0.66	9	27.44 ± 4.56	0.815