华西口腔医学杂志

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~(60)Co照射对大鼠舌菌状乳头及味蕾的影响

陈 宁1,赵士芳1,谷志远1,张宜勤2,张念光3   

  1. 1.浙江大学医学院 口腔系,浙江 杭州310031; 2.江苏省肿瘤医院 放疗科,江苏 南京210008;3.香港大学 口腔颌面外科学系,香港
  • 收稿日期:2004-12-25 修回日期:2004-12-25 出版日期:2004-12-20 发布日期:2004-12-20
  • 通讯作者: 陈 宁,Tel:025-85031869
  • 作者简介:陈 宁(1954-),男,江西人,教授,硕士
  • 基金资助:
    香港大学海外合作基金资助项目(1998年);江苏省教委自然科学基金资助项目(JE99M0056)

Changes of Taste Bud and Fungiform Papillae after60Co Radiation in Rat

CHEN Ning1,ZHAO Shi-fang1,GU Zhi- yuan1,ZHANG Yi-qin2,ZHANGNian-guang3   

  1. 1.The School ofDentistry,Zhejiang University,Hangzhou310031,China; 2. Dept.ofRadiation,TumorHospital ofJiangsuProvince,Nanjing210008,China; 3.The School ofDentistry,HongKong Univer- sity,HongKong,China
  • Received:2004-12-25 Revised:2004-12-25 Online:2004-12-20 Published:2004-12-20

摘要:

目的 研究临床治疗剂量60Co照射头颈部恶性肿瘤后,舌菌状乳头及其味蕾的形态学变化和再生能力。方法 模拟临床治疗剂量,根据多次照射剂量归一的原则,一次大剂量60Co照射30只SD大鼠头颈部,照射后观察大鼠舌菌状乳头和味蕾的变化。结果 照射后大鼠舌菌状乳头和味蕾第5天明显萎缩、退化、消失,第10~20天达到最高峰,第30天有少量菌状乳头和味蕾开始再生,第60天菌状乳头和味蕾明显再生,有部分菌状乳头仍呈萎缩状,未见到再生的味蕾。结论 治疗剂量的60Co照射头颈部,舌菌状乳头和味蕾的损伤是极其严重的,这些损伤能够再生,但不完全。

关键词: 60Co, 菌状乳头, 味蕾, 再生

Abstract:

Objective To observe the morphological changes and the regenerating ability of the fungiform papillae and taste buds after60Co radiation with clinical doses in rats.Methods The heads, faces and necks of 30 SD rats were radiated with a large dose and one time of60Co in the clinical radiation. The general living condition and the number and shape of the fungiform papillae and taste buds of the tongues were observed after the radiation in rats.Results In the group of60Co radiation, the ani- mals had wilting, decreasing appetite, losing weight. The heads, faces and necks of animals appeared redness, peeling of hair, increasing of secretions in 5 days afterthe60Co radiation. The changes reached the summit in 10 days and the general living condi- tion of the animals recovered in 60 days. The fungiform papillae and taste buds of the animals appeared degeneration, atrophy and collapsing in 5 days after the60Co radiation. The injuries reached the summit in 10~20 days and the fungiform papillae and taste buds regenerated partially, and the some atrophied fungiform papillae and taste buds were not regenerated in 60 days.Conclusion  The damage to fungiform papillae and taste buds of tongue following the60Co radiationwith the clinical doseswas very serious. The damaged fungiform papillae and taste buds can regenerate partially, but not completely.

Key words: 60Co, fungiform papillae, taste bud, regeneration