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

Table 1 A-V amino acid uptake rates in normal and cancerous colon tissue

Amino acid	Sample number	R2 (%)	R1 (%)	P value
Threonine 13	16	13.50 ± 3.76	39.25 ± 7.59	< 0.01
Phenylalanine 13	16	6.37 ± 1.77	26.26 ± 4.31	< 0.01
Leucine 14	16	8.21 ± 2.13	36.55 ± 6.11	< 0.01
Isoleucine 13	15	11.39 ± 3.55	30.63 ± 5.50	< 0.01
Methionine 1	16	-0.13 ± 1.20	11.55 ± 5.22	> 0.05
Valine 1	16	7.67 ± 2.42	33.46 ± 5.56	< 0.01
Lysine 14	16	-8.01 ± 1.85	25.44 ± 4.41	< 0.01
Histidine 1	16	1.06 ± 0.94	29.83 ± 6.37	< 0.01
Proline 2	11	-26.86 ± 8.36	6.49 ± 1.69	< 0.02
Glutamine 2	16	-12.42 ± 3.12	18.70 ± 5.23	< 0.01
Ammonia 2	16	-23.61 ± 4.58	4.70 ± 1.97	< 0.05
Alanine 2	16	-9.65 ± 2.47	18.16 ± 2.29	< 0.01
Glycine 2	16	-1.50 ± 0.98	29.18 ± 4.41	< 0.01
Cystine 2	13	-10.01 ± 3.37	8.89 ± 1.58	< 0.01
Arginine 2	16	-1.74 ± 0.88	29.02 ± 4.93	< 0.01
Serine 2	16	2.39 ± 1.02	37.26 ± 5.67	< 0.01
Tyrosine 23	16	6.57 ± 1.45	26.33 ± 3.39	< 0.01

¹Refers to essential amino acids,

²refers to non-essential amino acids,

³refers to ketogenic and glucogenic amino acids,

⁴refers to ketogenic amino acids.