LCE1B interacts with other hub genes (LCE2B, LCE2A, LCE2C, LCE1C, and LCE1F), and the AUC of other hub genes (LCE2B, LCE2A, LCE2C, LCE1C, and LCE1F) in HT and PD is greater than 65%. The gene discussed is LCE1B; the disease is hematocrit.