scholarly journals Evidence that Taste Buds are not Present on the Human Adult Uvula

2002 ◽  
Vol 81 (7) ◽  
pp. 456-457 ◽  
Author(s):  
Bryan T. Ambro ◽  
Edmund A. Pribitkin ◽  
Linda Wysocki ◽  
Joseph G. Brand ◽  
William M. Keane
Keyword(s):  
Carbon Dioxide ◽  
Surgical Procedures ◽  
Carbon Dioxide Laser ◽  
Adenosine Triphosphatase ◽  
Taste Buds ◽  
Taste Perception ◽  
Taste Receptors ◽  
High Concentration ◽  
Human Adult ◽  
Membrane Bound

We conducted a study to investigate whether taste buds are present on the human adult uvula. Our impetus was to determine whether surgical procedures that involve removal of the uvula can affect taste perception. Five human uvulae were removed via a modified carbon dioxide laser-assisted uvulopalatoplasty in an outpatient office setting. The uvulae were serially sectioned and stained with a solution specific for membrane-bound calcium-modulated adenosine triphosphatase, a high concentration of which is found in taste receptors. Examination of the stained sections under light microscopy failed to show that any taste receptors were present in any of the uvulae. This finding suggests that the taste disturbances noted after surgical procedures involving removal of the uvula are not attributable to a loss of taste receptors.

Onychoplasty with 1064-nm Laser: Matrixectomy for Treatment of Ingrown Toenails

2019 ◽  
Vol 109 (5) ◽  
pp. 401-406
Author(s):  
Lluís Castillo Sánchez ◽  
Antonio Jesús Zalacaín-Vicuña
Keyword(s):  
Carbon Dioxide ◽  
Postoperative Pain ◽  
Surgical Procedures ◽  
Daily Living ◽  
Carbon Dioxide Laser ◽  
Postoperative Recurrence ◽  
Surgical Approaches ◽  
Surgical Removal ◽  
Great Toe ◽  
Ingrown Toenails

Onychocryptosis is a common pathology treated by podiatry medical services, and in a considerable percentage, surgical procedures are required to achieve a solution. There are multiple surgical approaches for ingrown toenails, both incisional procedures and nonincisional procedures, such as chemical matrixectomies and physical matrixectomies using carbon dioxide laser. This study presents a surgical procedure for onychocryptosis using a physical matrixectomy with a 1064-nm laser applied by means of a 400-μm optical fiber and surgical removal of the posterior cauterized tissue to achieve healing by primary intention. This technique was performed on 30 patients with onychocryptosis affecting the great toe (Mozena stages I and IIa), and all of the patients were followed up postoperatively for 12 months. The patients reported minimal postoperative pain, quicker surgical postoperative healing, rapid return to activities of daily living, and minor postoperative recurrence compared with previous studies using incisional procedures and chemical matrixectomies.

Sweetness produced electrically on the tongue and its relation to taste theories

1964 ◽  
Vol 19 (6) ◽  
pp. 1105-1113 ◽  
Author(s):  
G. Von Békésy
Keyword(s):  
Frequency Response ◽  
Taste Buds ◽  
Taste Perception ◽  
Taste Receptors ◽  
Chorda Tympani ◽  
Response Curves ◽  
Anatomical Structures ◽  
Microelectrode Recordings ◽  
The Times ◽  
Stimulation Of

Electrical stimulation of the tongue under controlled conditions produces pure sensations of the four basic tastes. These basic tastes correspond to four kinds of papillae which are distinguished by differences in their anatomical structures, their frequency response curves, and the times required for the buildup of sensation, but which all have about the same chronaxie. Although these findings do not favor the cluster theory of taste perception, adaptation experiments indicate that they do not disagree with the microelectrode recordings of nervous discharges of taste fibers in the chorda tympani. electrical taste; frequency response of the four specific taste buds; inhibition of taste sensations; interaction between taste buds; specific taste receptors; taste buds; taste units Submitted on March 2, 1964

Effects of Ethylene, Carbon Dioxide, and Ethylene – Carbon Dioxide Mixtures on the Activities of "Membrane-Containing" and "Highly Purified" Preparations of Adenosine Triphosphatase from Pea-Cotyledon Mitochondria

1974 ◽  
Vol 52 (12) ◽  
pp. 1091-1096 ◽  
Author(s):  
S. S. Malhotra ◽  
Mary Spencer
Keyword(s):  
Carbon Dioxide ◽  
Adenosine Triphosphatase ◽  
Direct Action ◽  
Gas Mixture ◽  
Mitochondrial Atpase ◽  
Enzyme Preparations ◽  
Membrane Bound

From pea-cotyledon mitochondria two types of adenosine triphosphatase (ATP phosphohydrolase) were prepared, "membrane-bound" and "highly purified." Activities of both enzyme preparations were dependent on Mg2+ and were stimulated by Na+ and K+. Ethylene had no effect on the activity of either the "membrane-bound" or the "highly purified" enzyme. Ethylene – carbon dioxide – air mixtures stimulated the activity of the "membrane-bound" but not the "highly purified" ATPase, when Na+ and K+ were present. When these ions were absent, the gas mixture greatly increased the activities of both enzyme preparations. The work shows a direct action of ethylene on an enzyme (mitochondrial ATPase), its dependence on the presence of certain levels of CO2, and the augmentation of the ethylene–CO2 effects by the presence of phospholipids.

Electron Cytochemical Study of Carbon Dioxide Laser Effect on Rhesus Monkey Cornea

1974 ◽  
Vol 32 ◽  
pp. 224-225
Author(s):  
K. C. Tsou ◽  
J. Morris ◽  
P. Shawaluk ◽  
B. Stuck ◽  
E. Beatrice
Keyword(s):  
Carbon Dioxide ◽  
Electron Microscope ◽  
Rhesus Monkey ◽  
Carbon Dioxide Laser ◽  
Cytochemical Study ◽  
Laser Effect

While much is known regarding the effect of lasers on the retina, little study has been done on the effect of lasers on cornea, because of the limitation of the size of the material. Using a combination of electron microscope and several newly developed cytochemical methods, the effect of laser can now be studied on eye for the purpose of correlating functional and morphological damage. The present paper illustrates such study with CO2 laser on Rhesus monkey.

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