Basic Research
Copyright ©The Author(s) 2003.
World J Gastroenterol. Apr 15, 2003; 9(4): 771-774
Published online Apr 15, 2003. doi: 10.3748/wjg.v9.i4.771
Table 1 Composition of amino acid solutions (g·L-1)
Amino acidsBalanced amino acids (Group A, C)Methionine-depleted (Group B)Valine-depleted (Group D )
Isoleucine5.55.55.5
Leucine7.57.57.5
Lysine7.07.07.0
Methionine6.0-6.0
Phenylalanine4.04.04.0
Threonine5.05.05.0
Tryptophan1.51.51.5
Valine6.06.0-
Arginine6.06.06.0
Histidine3.03.03.0
Proline4.04.04.0
Tyrosine1.01.01.0
Alanine20.020.020.0
Glycine7.57.57.5
Aspartic acid4.04.04.0
Total amino acid88.082.082.0
Total N14.113.113.1
Table 2 Compositions of EN solutions (ml·L-1)
Amino acidsBalanced amino acids (group A, C)Methionine-depleted (group B)Valine-depleted (group D)
Amino acid solutions350350350
50% Glucose300300300
20% Intralipid100100100
Electrolytes, vitamine250250250
Total calorie (KJ·L-1)3513.33507.93507.9
Total N (g·L-1)4.94.64.6
Non-protein calorie/N122131131
Table 3 Incorporation (DUR, %) of 3H into nucleic acids and proteins in TB rats after treatment
Group0.5 h1 h2 h4 h
RNAA0.208 ± 0.0020.300 ± 0.0020.349 ± 0.0070.405 ± 0.007c
B0.149 ± 0.0120.249 ± 0.0090.260 ± 0.0100.389 ± 0.010
C0.200 ± 0.0070.250 ± 0.036b0.283 ± 0.029ac0.326 ± 0.014c
D0.180 ± 0.0130.210 ± 0.0240.300 ± 0.0340.320 ± 0.030b
DNAA0.210 ± 0.0130.300 ± 0.0200.339 ± 0.0390.400 ± 0.002c
B0.179 ± 0.010a0.204 ± 0.039a0.240 ± 0.028a0.300 ± 0.015b
C0.200 ± 0.0110.250 ± 0.0400.283 ± 0.031c0.340 ± 0.057c
D0.180 ± 0.0150.220 ± 0.0240.308 ± 0.0070.320 ± 0.035
ProteinsA0.659 ± 0.0552.410 ± 0.1493.450 ± 0.1254.492 ± 0.108c
B0.500 ± 0.020b2.000 ± 0.203b2.890 ± 0.090bc3.670 ± 0.110b
C0.805 ± 0.0982.510 ± 0.0103.540 ± 0.101c4.180 ± 0.018c
D0.708 ± 0.0191.887 ± 0.020b2.916 ± 0.085b3.813 ± 0.076b