| Comments |
"At 50, 100, and 200 hours, after injection of lsotope, the radioautograms indicate a general migration of the labeled cells toward the center of the taste bud, as shown in Fig. 4, although many cells never reach the center before they degenerate. At 400 hours after injection the tritiated thymidine in most, but not all, of the taste buds appears as spots scattered throughout the taste bud but not associated with any cell nucleus. Several such studies of entrance and disappearance of labeled cells within the taste buds were undertaken and all indicated that the average life span of a taste bud cell is about 250±50 hours." |