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应激和尼古丁对大鼠牙周组织的协同破坏作用

Synergetic effects of stress and nicotine on periodontal tissues in rats
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摘要 目的:评估应激和尼古丁两者共同作用对大鼠实验性牙周炎进展的影响,为临床牙周炎患者治疗提供理论指导。方法:40只Wistar雄性大鼠,采用尼龙丝线结扎左上颌第二磨牙颈部,建立实验性牙周炎模型,随机分为性应激组(S组)、尼古丁组(Ni组)、尼古丁+应激组(Ni+S组)和对照组(C组),第2、4、6、8和10天分批处死后大鼠,进行组织学观察和测量。结果:与对照组比较,各实验组牙槽骨吸收破坏明显,其中Ni+S组牙槽骨破坏程度最为显著。牙槽骨吸收率在第6、8和10天各实验组明显高于C组(P<0.01),第6和10天Ni组和Ni+S组高于S组(P<0.01),第10天Ni+S高于Ni组(P<0.05);Ni组在第6、8和10天明显高于C组(P<0.01),第6天明显高于S组(P<0.01)。结论:应激可以明显增强尼古丁对牙周组织的破坏作用,两者在牙周组织破坏过程中具有协同作用。 Objective To investigate the effects of stress associated with nicotine on experimental periodontal breakdown of ligature-induced periodontitis in rats.Methods Forty male Wistar rats with the neck of left maxillary second molar ligated by nylon were used.The animals were randomly divided into four groups:Ni group,0.7 mg of nicotine·kg-1·d-1 (intraperitoneal); S group,stress (immobilization-12 h·d-1); Ni+S group,stress (immobilization-12 h·d-1) associated with an intraperitoneal injection of 0.7 mg of nicoti...
出处 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2008年第6期952-955,916,共5页 Journal of Jilin University:Medicine Edition
基金 吉林省科技厅自然科学基金资助课题(20020658) 吉林大学创新基金资助课题(419070200082)
关键词 应激 尼古丁 牙周组织 疾病模型 动物 stress nicotine periodontal tissue disease models animal
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参考文献10

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二级参考文献1

  • 1孟焕新.牙周病的全身易感因素[A].曹采方 主编.牙周病学:第1版[C].北京:人民卫生出版社,2000.62.

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