Crushing or transecting the chorda tympani nerve of the gerbil (Meriones unguiculatus) caused ipsilateral degeneration of taste buds in the fungiform papillae. In less than two weeks some taste fibers regenerated into the tongue and formed new taste buds and receptor cells. The recovery process was evaluated electrophysiologically in 53 gerbils by acute recording proximal to the nerve injury si...

Taste function requires neural circuits to transmit gustatory information from taste receptor cells in taste buds, via afferent nerves to the soma of ganglion neurons, and through central ganglion processes into the brainstem. During initial formation, the sensory ganglion neurons have a key situation in establishing receptive fields by extending neurites bidirectionally, to the peripheral tast...

Taste buds and papillae in tongues of rhesus monkeys were examined and counted to determine if there are age-related differences in general morphology or numbers of receptor organs. Tongues from 15 monkeys in five groups aged 4-31 years were studied with light microscopy. Fungiform, circumvallate, and foliate papillae were examined and taste buds in each papilla type were counted. Numbers of pa...

In the present paper, cavitation bubble dynamics model for a single oscillating within droplet is improved based on classical Rayleigh–Plesset equation and effects of liquid surface tension viscosity are both considered. aspect experiment, collapsing dynamic process carried out by building high-speed photography experimental platform. addition, numerical solution collapse time also out. The fin...

The filiform papillae were smallest in size and the most numerous of all lingual papillae which distributed on dorsal surface, ventral surface and rarely extend caudally at level of circumvallate papillae. Filiform papillae which found on lateral margin and at tip of tongue were highly cornified. Fungiform papillae were distributed among filiform papillae and are more concentrated around the ti...

Taste sensitivity to the bitter compound 6-n-propylthiouracil (PROP) is a genetic trait present in 70% of the population, and it is sensitive even at low concentrations of the compound (FOX, 1932). PROP tasters have a higher density of fungiform papillae and tend to perceive a wide variety of compounds, such as caffeine, sucrose, pepper, and fat with greater intensity (TEPPER, 2008; TEPPER; CHR...

OBJECTIVE Roux-en-Y gastric bypass (RYGB) surgery causes greater weight loss than laparoscopic adjustable gastric banding (LAGB). We tested the hypothesis that RYGB has weight loss-independent effects on taste perception, which influence eating behavior and contribute to the greater weight loss. METHODS Subjects were studied before and after ∼20% weight loss induced by RYGB (n = 17) or LAGB (...

Various genes related to early events in human gustation have recently been discovered, yet a thorough understanding of taste transduction is hampered by gaps in our knowledge of the signaling chain. As a first step toward gaining additional insight, the expression specificity of genes in human taste tissue needs to be determined. To this end, a fungiform papillae cDNA library has been generate...

Research has demonstrated that individuals with eating disorders have an impaired sense of smell and taste, though the influence of eating attitudes, dietary restraint and gender in a non-clinical sample is unknown. In two studies (study 1: 32 females, 28 males; study 2: 29 females) participants completed questionnaires relating to Eating Attitudes (EAT) and dietary restraint (DEBQ) followed by...

In the soft palate, tongue, pharynx and larynx surrounding the oral region, taste buds are present, allowing the sensation of taste. On the tongue surface, 3 kinds of papillae are present: fungiform, foliate, and circumvallate. Approximately 5,000 taste buds cover the surface of the human tongue, with about 30% fungiform, 30% foliate and 40% circumvallate papillae. Each taste bud comprises 4 ki...