Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (40): 6504-6508.doi: 10.3969/j.issn.2095-4344.2015.40.020

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Construction of rat models of recurrent aphthous ulcer and the intervention of baicalin

Qin Yun   

  1. Department of Orthodontics, Daqing Oilfield General Hospital, Daqing 163001, Heilongjiang Province, China
  • Online:2015-09-30 Published:2015-09-30
  • About author:Qin Yun, Attending physician, Department of Orthodontics, Daqing Oilfield General Hospital, Daqing 163001, Heilongjiang Province, China

Abstract:

BACKGROUND: Extracellular matrix degradation and remodeling is the common pathway of a variety of pathological and physiological processes, and is invovled in the pathogenesis of a variety of oral diseases.

OBJECTIVE: To analyze the role of extracellular matrix remodeling following cellular apoptosis in recurrent aphthous ulcer and the therapeutic effect of baicalin, so as to provide references for new drug development and clinical treatment.

METHODS: Forty Sprague-Dawley rats were randomly divided into four groups: control, recurrent aphthous ulcer model, low-dose baicalin and high-dose baicalin groups. Rat models were established using oral mucosal homogenate plus Freund’s immunoadjuvants in the recurrent aphthous ulcer model, low-dose baicalin, and high-dose baicalin groups. Rats in low-dose baicalin and high-dose baicalin groups were intragastrically administered 10 mg/kg and 100 mg/kg of baicalin respectively for 14 days, once per day.

RESULTS AND CONCLUSION: Compared with the control group, serum superoxide dismutase level was distinctly decreased, however, malondialdehyde level distinctly increased; the expression levels of Bax, Caspase3 and matrix metalloproteinase 2/9 were increased, but the expression of Bcl2 was decreased in the recurrent aphthous ulcer model group. The abovementioned indicators of rats returned greatly towards normal levels in the low dose baicalin and high dose baicalin groups, and there was significant difference in the effects of different doses of baicalin on these indicators. These results suggest that baicalin treats recurrent aphthous ulcer mainly through inhibiting extracellular matrix degradation and remodeling.

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程

 

Key words: Stomatitis, Aphthous, Scutellaria Baicalensis, Superoxide Dismutase, Apoptosis 

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