ACE2 and asthma: 1. Angiotensin converting enzyme 2 was expressed in salivary glands in healthy population. 2. ACE 2 expression in the salivary glands in younger population was marginally higher than in the elder population. 3. Higher expression of ACE 2 potentially activated the ribosomal pathway. KEGG analysis revealed that asthma, Spliceosome, autophagy were activated in the higher expression group.