ORMDL3 (ORMDL Sphingolipid Biosynthesis Regulator 3): ORMDL3 is a gene that regulates the production of sphingolipids, key components of cell membranes and signaling pathways. It helps maintain lipid balance in cells and influences inflammatory responses. Variations in ORMDL3 have been linked to a higher risk of asthma and allergic diseases, underscoring its role in immune regulation and inflammation.