VDR and viral infectious disease: For example, VDR deletion decreased fecal serine amino acids, which is consistent with a previous study.36 Even though various aspects of host central carbon metabolism have been shown to be related to eukaryotic virus infection, several eukaryotic viruses were also found to increase the consumption of key nutrients such as glucose and glutamine and converge on similar metabolic pathways for anabolism,73 which was different from our results.