Table 1 Principal components for urea cycle
PCVariance Explained (%)SD (%)OrnCitGlnGluArgH2
147.51.5−0.572−0.540−0.471−0.385−0.106<0
222.01.5−0.377−0.109−0.9160.008
319.40.990.4300.359−0.427−0.6780.2120.28
49.90.71−0.1600.769−0.06140.25
  • PC, principal component; Orn, ornithine; Cit, citrulline; Gln, glutamine; Glu, glutamate; Arg, arginine; H2, broad-sense heritability.