Table 1 Effects of intragastric infusion of taste substances on gastric vagal afferent activity
Taste substances | Gastric afferent discharge rate (impulses/5 s ± SEM) | ||
|---|---|---|---|
Before | After 30 min | ΔDischarge rate | |
Umami | |||
30 mM IMP | 64.5 ± 1.3 | 86.5 ± 3.9** | 22.0 ± 3.8 |
150 mM MSG | 65.6 ± 4.7 | 89.7 ± 7.4** | 24.1 ± 4.0 |
Sweet | |||
277.5 mM Glucose | 57.2 ± 4.5 | 55.4 ± 3.6 | −1.8 ± 1.7 |
292.1 mM Sucrose | 57.7 ± 3.2 | 55.6 ± 2.1 | −2.1 ± 2.9 |
Salty | |||
154 mM NaCl | 61.3 ± 2.9 | 60.0 ± 1.8 | −1.3 ± 1.9 |
Hypotonic solution | |||
30 mM Mannose | 55.8 ± 3.2 | 54.5 ± 2.9 | −1.4 ± 2.6 |