Research Article

Metabolomic Analysis of Biochemical Changes in the Plasma of High-Fat Diet and Streptozotocin-Induced Diabetic Rats after Treatment with Isoflavones Extract of Radix Puerariae

Table 4

Effects of PTIF (421 mg/kg) on amino acids in high-fat diet and STZ-induced diabetic rats (μmol/L).

Amino acidNormal Diabetic Diabetic + PTIF

Serine103.1 ± 30.4117.7 ± 35.8115.3 ± 18.2
Glutamate29.3 ± 7.361.0 ± 22.342.9 ± 8.1#
Glycine111.4 ± 28.3111.4 ± 20.4104.6 ± 17.1
Histidine158.7 ± 27.0173.1 ± 24.9208.6 ± 42.8
Arginine226.0 ± 56.0347.9 ± 99.8349.4 ± 59.1
Threonine89.7 ± 24.181.0 ± 18.4 96.3 ± 16.7
Alanine185.4 ± 37.0213.2 ± 42.7171.4 ± 35.6
Proline84.7 ± 28.099.0 ± 34.769.1 ± 9.4
Tyrosine38.0 ± 10.659.4 ± 18.945.9 ± 8.1
Valine50.6 ± 12.7107.2 ± 32.2123.0 ± 22.6
Methionine29.4 ± 9.333.5 ± 12.828.9 ± 5.2
Lysine86.0 ± 14.570.9 ± 11.178.4 ± 17.1
Isoleucine25.7 ± 6.568.5 ± 11.356.9 ± 14.1
Leucine42.1 ± 10.7104.8 ± 17.884.0 ± 21.9#
Phenylalanine40.5 ± 9.852.9 ± 13.656.6 ± 10.1

All data were expressed as mean ± SD. One-way analysis of variance (ANOVA) was used for significance analysis. indicate a significant difference as compared with normal rats; # indicate a significant difference as compared with diabetic rats.