Table 3.

Overview of trends of metabolites during the short-term storage of dry serum and liver extracts with increasing storage temperature compared to −80 °C (reference condition).

Trend	Dry Serum Extracts	Dry Liver Extracts
Increasing	oxFA (O; O2; O3), LPI, oxPC (O; O2), oxPI (O), oxTG (O), FA, LPC, 5′-S-methyl-5′-thioadenosine, α-ketoglutaric acid	oxFA (O), LPE, oxPC (O; O2), oxPE (O2), oxPI (O; O2), 5′-S-methyl-5′-thioadenosine, arginine, creatinine, pyridoxamine, N-acetylphenylalanine, N-ε-dimethyllysine, citric acid, inosine 5′-monophosphate, methioninesulfoxide, N6,N6,N6-trimethyllysine
Decreasing	LPE, oxPC (O2), PE, etherPE, oxTG (O2), glucose, taurine, uric acid	ether-TG, 1-/3-methylhistidine, acetylcholine, cis-aconitic acid, adenosine, dipeptides, citrulline, histidine, hypotaurine, pentose phosphates, hexose phosphates, TMAO, pyridoxal 5′-phosphate, ornithine, N-acetylhistidine, N-α-acetyllysine, cystathionine, glutamic acid, glutamine, methionine