味细胞

α-参兜鞍是一种transducins样味觉特异性G蛋白，它在从鱼到人类的多种脊椎动物物种的味细胞内均有表达，是脊椎动物味觉感受中重要的调控因子之一。

α - Gustducin is a taste-specific G-protein closely related to the transducins . It is present in the taste cells of several vertebrate species , ranging from fish to humans . α - gustducin is one of the principal mediators for vertebrates ' taste perception .

味蕾是动物的外周味觉感受器，它是由味细胞和神经纤维组成的上皮特化器官，舌面上的味蕾存在于味乳头中。

Taste buds , which comprise taste cells and nerve fibers within specialized epithelial structures , are peripheral gustatory receptors .

结果放射后味觉组织变化主要表现为味蕾味细胞减少，丝状乳头高度及密度明显减少。

Results There were changes in the number of dark cells per bud instead in the number of buds per fungiform papilla , the number of cells per bud .

结果与对照组大鼠比较，实验组大鼠味腺腺泡细胞的核膜凹陷、核固缩；

Results Compared with the control group , in diabetes rats acinar cell nucleus appeared nucleolemma introcession and karyopycnosis ;

结论味蛋白和转导蛋白可能是味细胞的G－蛋白，但以味蛋白特异性表达为主，它们可能参与味觉的信号转导作用。

Conclusion The result of present study proved that both transducin and gustducin were taste G-protein and gustducin was high expressed . Both of them might be involved in taste signal transduction .