Periodontitis is an inflammatory autoimmune disease. Treatment should alleviate inflammation, regulate the immune reaction and promote periodontal tissue regeneration. Icariin is the main active ingredient of Epimedii...Periodontitis is an inflammatory autoimmune disease. Treatment should alleviate inflammation, regulate the immune reaction and promote periodontal tissue regeneration. Icariin is the main active ingredient of Epimedii Folium, and it is a promising compound for the enhancement of mesenchymal stem cell function, promotion of bone formation, inhibition of bone resorption, alleviation of inflammation and regulation of immunity. The study investigated the effect of icariin on periodontal tissue regeneration in a minipig model of periodontitis. The minipig model of periodontitis was established. Icariin was injected locally. The periodontal clinical assessment index, a computed tomography(CT) scan, histopathology and enzyme-linked immune sorbent assay(ELISA)were used to evaluate the effects of icariin. Quantitative analysis results 12 weeks post-injection demonstrated that probing depth,gingival recession, attachment loss and alveolar bone regeneration values were(3.72 ± 1.18) mm vs.(6.56 ± 1.47) mm,(1.67 ± 0.59)mm vs.(2.38 ± 0.61) mm,(5.56 ± 1.29) mm vs.(8.61 ± 1.72) mm, and(25.65 ± 5.13) mm3 vs.(9.48 ± 1.78) mm3 in the icariin group and0.9% NaCl group, respectively. The clinical assessment, CT scan, and histopathology results demonstrated significant enhancement of periodontal tissue regeneration in the icariin group compared to the 0.9% NaCl group. The ELISA results suggested that the concentration of interleukin-1 beta(IL-1β) in the icariin group was downregulated compared to the 0.9% NaCl group, which indicates that local injection of icariin relieved local inflammation in a minipig model of periodontitis. Local injection of icariin promoted periodontal tissue regeneration and exerted anti-inflammatory and immunomodulatory function. These results support the application of icariin for the clinical treatment of periodontitis.展开更多
背景:小型猪因皮肤组织结构、心血管系统等与人高度相似,所以常被应用于皮肤损伤、血管创伤与美容医学等研究领域。水凝胶作为创伤修复敷料拥有较强的保水性和黏附性等多种优异理化性质,能够为伤口提供隔离湿润和药物释放作用。目的:归...背景:小型猪因皮肤组织结构、心血管系统等与人高度相似,所以常被应用于皮肤损伤、血管创伤与美容医学等研究领域。水凝胶作为创伤修复敷料拥有较强的保水性和黏附性等多种优异理化性质,能够为伤口提供隔离湿润和药物释放作用。目的:归纳和总结水凝胶治疗小型猪不同实验用途创伤修复模型的应用进展,揭示各类小型猪创伤修复模型的发展现状,分析现阶段小型猪创伤修复模型的不足。方法:查阅Web of Science数据库及中国知网从数据库建立至2023年发表的相关文献,设置中文检索词为“小猪,小型猪,微型猪,迷你猪;凝胶,水凝胶;创伤,损伤,伤口,创口”等,英文检索词为“miniature Swine,miniature pig,minipig;gel,hydrogel;injury,wound,lesion,incision”等。共检索到438篇中、英文文献,通过纳入和排除标准共纳入59篇文献进行探讨。结果与结论:①目前用于创伤修复的模型主要有大型动物物种(犬和猪)、兔子及啮齿类动物(大鼠和小鼠),由于小型猪皮肤结构与人类较相似,因此小型猪是创伤修复理想的动物模型。②在体外皮肤损伤模型中,皮肤缺损模型是基础的伤口模型,按伤口缺损深度可分为全层皮肤缺损模型和中厚皮肤缺损模型;烧伤伤口模型和感染伤口模型是在皮肤缺损模型的基础上施加热金属烫伤和细菌培养的多维度模型,具有安全系数高、操作难度低的优点。③在体内创伤修复模型中,小型猪可用作更符合临床疾病病理状态的食管环切模型;在胃穿孔、血管止血模型中,小型猪可观地展示出水凝胶较强的脏器黏附性、止血性能及促进组织再生效应。④在猪的特定部位也有相应模式用途:猪耳通常用来评价水凝胶的药物缓释效果;猪细胞蛋白和猪皮胶原多制备组织来源的复合水凝胶。展开更多
基金supported by grants from the National Natural Science Foundation of China (grant number 81625005 to Z.F.)High-level Talents of the Beijing Health System (grant number 2014-3-080 to F.Z.)the program for Beijing Science and Technology of Chinese Medicine (grant number JJ2013-11 to F.Z.)
文摘Periodontitis is an inflammatory autoimmune disease. Treatment should alleviate inflammation, regulate the immune reaction and promote periodontal tissue regeneration. Icariin is the main active ingredient of Epimedii Folium, and it is a promising compound for the enhancement of mesenchymal stem cell function, promotion of bone formation, inhibition of bone resorption, alleviation of inflammation and regulation of immunity. The study investigated the effect of icariin on periodontal tissue regeneration in a minipig model of periodontitis. The minipig model of periodontitis was established. Icariin was injected locally. The periodontal clinical assessment index, a computed tomography(CT) scan, histopathology and enzyme-linked immune sorbent assay(ELISA)were used to evaluate the effects of icariin. Quantitative analysis results 12 weeks post-injection demonstrated that probing depth,gingival recession, attachment loss and alveolar bone regeneration values were(3.72 ± 1.18) mm vs.(6.56 ± 1.47) mm,(1.67 ± 0.59)mm vs.(2.38 ± 0.61) mm,(5.56 ± 1.29) mm vs.(8.61 ± 1.72) mm, and(25.65 ± 5.13) mm3 vs.(9.48 ± 1.78) mm3 in the icariin group and0.9% NaCl group, respectively. The clinical assessment, CT scan, and histopathology results demonstrated significant enhancement of periodontal tissue regeneration in the icariin group compared to the 0.9% NaCl group. The ELISA results suggested that the concentration of interleukin-1 beta(IL-1β) in the icariin group was downregulated compared to the 0.9% NaCl group, which indicates that local injection of icariin relieved local inflammation in a minipig model of periodontitis. Local injection of icariin promoted periodontal tissue regeneration and exerted anti-inflammatory and immunomodulatory function. These results support the application of icariin for the clinical treatment of periodontitis.
文摘背景:小型猪因皮肤组织结构、心血管系统等与人高度相似,所以常被应用于皮肤损伤、血管创伤与美容医学等研究领域。水凝胶作为创伤修复敷料拥有较强的保水性和黏附性等多种优异理化性质,能够为伤口提供隔离湿润和药物释放作用。目的:归纳和总结水凝胶治疗小型猪不同实验用途创伤修复模型的应用进展,揭示各类小型猪创伤修复模型的发展现状,分析现阶段小型猪创伤修复模型的不足。方法:查阅Web of Science数据库及中国知网从数据库建立至2023年发表的相关文献,设置中文检索词为“小猪,小型猪,微型猪,迷你猪;凝胶,水凝胶;创伤,损伤,伤口,创口”等,英文检索词为“miniature Swine,miniature pig,minipig;gel,hydrogel;injury,wound,lesion,incision”等。共检索到438篇中、英文文献,通过纳入和排除标准共纳入59篇文献进行探讨。结果与结论:①目前用于创伤修复的模型主要有大型动物物种(犬和猪)、兔子及啮齿类动物(大鼠和小鼠),由于小型猪皮肤结构与人类较相似,因此小型猪是创伤修复理想的动物模型。②在体外皮肤损伤模型中,皮肤缺损模型是基础的伤口模型,按伤口缺损深度可分为全层皮肤缺损模型和中厚皮肤缺损模型;烧伤伤口模型和感染伤口模型是在皮肤缺损模型的基础上施加热金属烫伤和细菌培养的多维度模型,具有安全系数高、操作难度低的优点。③在体内创伤修复模型中,小型猪可用作更符合临床疾病病理状态的食管环切模型;在胃穿孔、血管止血模型中,小型猪可观地展示出水凝胶较强的脏器黏附性、止血性能及促进组织再生效应。④在猪的特定部位也有相应模式用途:猪耳通常用来评价水凝胶的药物缓释效果;猪细胞蛋白和猪皮胶原多制备组织来源的复合水凝胶。
