Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (15): 2326-2331.doi: 10.3969/j.issn.2095-4344.2014.15.006

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Effect of low concentration of nicotine on soft tissue defect repair of rat hard palate

Zhang Ya-jun1, Yang Cong-chong2, Liu Lai-kui2, Zhang Meng-jie3, Sun Ying-ming3   

  1. 1 School of Stomatology, Anhui Medical University, Hefei 230032, Anhui Province, China; 2 Department of Stomatology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China; 3 Department of Dentistry, the 101 Hospital of Chinese PLA, Wuxi 214044, Jiangsu Province, China
  • Online:2014-04-09 Published:2014-04-09
  • Contact: Sun Ying-ming, M.D., Associate chief physician, Associate professor, Master’s supervisor, Department of Dentistry, the 101 Hospital of Chinese PLA, Wuxi 214044, Jiangsu Province, China
  • About author:Zhang Ya-jun, Studying for master’s degree, School of Stomatology, Anhui Medical University, Hefei 230032, Anhui Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81272968

Abstract:

BACKGROUND: Low concentration of nicotine promotes the angiogenesis and facilitates the healing of skin wounds. However, the role of low concentration of nicotine on the repair of maxillofacial soft tissue trauma especially oral mucosa still remains unclear
OBJECTIVE: To evaluate the effect of low concentration of nicotine on mucosa defect repair of rat hard palate.
METHODS: A circular soft tissue defect at 3 mm diameter was produced in the centre of hard palate of 65 Wistar rats. After the operation, animals were randomly divided into low concentration of nicotine with gel group, gel group and control group. Rats were sacrificed at 3, 7, 10 and 14 days post-surgery. The wound healing was detected with hematoxylin-eosin staining and the difference of wound healing in different groups was compared with gross observation and image measurement.
RESULTS AND CONCLUSION: There was no significant difference in the wound healing in different groups on day 3 post-surgery. On days 7 and 10, the group of low concentrations of nicotine with gel was faster than gel group and control group (P < 0.05); the wounds were completely healed on day 14, with no significant difference among the groups. Low concentrations of nicotine may promote the mucosa defects repair of rat hard palate.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: nicotine, cleft palate, palate, hard, soft tissue injuries, mouth mucosa

CLC Number: