PTH and COVID-19: When observing the pathways enriched in downregulated DEGs, we noted pathways like influenza A, measles, antigen processing and presentation, hepatitis C, parathyroid hormone synthesis, secretion, and action, osteoclast differentiation, hepatitis B, human papillomavirus infection, cell adhesion molecules, Epstein-Barr virus infection, calcium signaling pathway, COVID-19, PI3K-Akt signaling pathway, and pathways in cancer were consistent at both time points (24 h and 72 h).