TABLE 3.
Co-expression ratios for prostaglandin-endoperoxide synthase 1 (Ptgs1)-positive taste cells and taste cell markers: gustducin (type II for bitter, sweet and umami), T1R3 (type II for sweet and umami) and carbonic anhydrase 4 (CA4, type III for sour) in mouse circumvallate (CV) and fungiform papillae (FP) in Figure 2.
| Taste papillae | Percentage (%) | Percentage (%) | ||||
| CV | Ptgs1 (COX-1)/T1R3 | 54.4% | (403/741, n = 262) | T1R3/Ptgs1 (COX-1) | 60.0% | (403/672, n = 262) |
| Ptgs1 (COX-1)/Gustducin | 40.6% | (189/465, n = 168) | Gustducin/Ptgs1 (COX-1) | 52.6% | (189/359, n = 168) | |
| Ptgs1 (COX-1)/CA4 | 7.8% | (15/191, n = 119) | CA4/Ptgs1 (COX-1) | 8.9% | (15/168, n = 119) | |
| FP | Ptgs1 (COX-1)/T1R3 | 60.6% | (57/106, n = 33) | T1R3/Ptgs1 (COX-1) | 53.8% | (57/94, n = 33) |
| Ptgs1 (COX-1)/Gustducin | 48.0% | (48/119, n = 37) | Gustducin/Ptgs1 (COX-1) | 40.3% | (48/100, n = 37) | |
| Ptgs1 (COX-1)/CA4 | 9.8% | (9/99, n = 31) | CA4/Ptgs1 (COX-1) | 9.1% | (9/92, n = 31) | |
(The number of protein A + B positive cells/that of protein B positive cells, n = the number of taste buds analyzed).