Fig. 1.

The scheme of retro-orbital bleeding from the group of mice in a set of different experiments. The down arrows refer to the early time point in which mice were bled. A Scheme for retro-orbital bleeding in different experiments. B Typical 700 MHz ¹H NMR spectrum of serum of a control C57Bl/6. 1 Lipids [1a –CH₃, 1b –(CH₂)_n–, 1c –CH₂CH₂CO, 1d –CH₂C=C, 1e –CH₂=CO–, 1f =C–(CH₂)–C=], 2 leucine, 3 isoleucine, 4 valine, 5 lactate, 6 alanine, 7 acetate, 8 glutamine, 9 glutamate, 10 methionine, 11 acetate, 12 citrate, 13 lysine, 14 creatine, 15 choline, 16 phosphocholine, 17 GPC, 18 glucose