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Neonatal chorda tympani transection permanently disrupts fungiform taste bud and papilla structure in the rat
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sollars, Suzanne I. Bernstein, Ilene L. |
| Copyright Year | 2000 |
| Abstract | The present report examined the morphology of fungiform papillae in adult rats that received bilateral chorda tympani transection at 10 days of age. Tongue tissue was examined using surface-structure analysis. Counts were made of fungiform papillae with a pore, fungiform papillae with no pore and fungiform papillae with a keratinized conical surface; a feature referred to as "filiform-like. " Neonatal chorda tympani nerve transection resulted not only in a loss of taste buds but also in a permanent loss in numbers of fungiform papillae. Compared with an average of 152 fungiform papillae in sham-operated control rats, there was an average of only 54 fungiform papillae after neonatal chorda tympani transection. Nearly 80% of these fungiform papillae in neonatal chorda tympani transected rats were filiform-like. No filiform-like papillae were noted in sham-operated rats. These results suggest that the chorda tympani nerve is necessary during an early postnatal period of development to maintain normal fungiform papillae morphology. |
| Starting Page | 439 |
| Ending Page | 444 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/S0031-9384(99)00259-0 |
| PubMed reference number | 10913782 |
| Journal | Medline |
| Volume Number | 69 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/S0031938499002590 |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/S0031938499002590?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/S0031-9384%2899%2900259-0 |
| Journal | Physiology & Behavior |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
