目的 开发一种多功能纳米颗粒输送系统来刺激骨再生和血管形成，用于逆转骨质疏松症。方法 通过制备基于外消旋聚乳酸 Poly（D，L-lactide）即PLA的纳米颗粒来封装淫羊藿苷。随后，通过红细胞膜包被这些纳米颗粒以增强生物相容性。为了提高靶向特异性，进一步合成了由阿仑膦酸盐修饰的聚乙二醇-磷脂酰乙醇胺（PEG-DSPE） 组成的骨靶向聚合物脂质，并将其掺入细胞膜涂层中。结果 多功能纳米颗粒输送系统可通过调节骨髓间充质干细胞 （BMSC）功能，从而增强成骨和血管生成能力。结论 本研究结果表明，多功能纳米颗粒输送系统可以在体外刺激骨形成和血管形成，表明其有成为骨质疏松症先进治疗策略的潜力。
Objective To developed a multifunctional nanoparticle system to stimulate bone regeneration and vascularization as a therapeutics strategy for osteopovost．Methods Poly（D，L-lactide）（PLA）-based nanoparticles were fabricated to encapsulate the icariin，which is renowned for its osteogenic potential．These nanoparticles were then coated with red blood cell membranes to enhance biocompatibility．To further improve targeting specificity，a bone-targeted polymer-lipid consisting of alendronate-modified PEG-DSPE was synthesized and incorporated into the cell membrane coating．Results The delivery system was designed to modulate the function of bone marrow mesenchymal stem cells，thereby enhancing both osteogenesis and angiogenesis．Conclusions Our findings demonstrated that the therapeutic system could enhance bone formation and vascularization in vitro，indicating its potential as an advanced treatment strategy for osteoporosis．
目的 对颞下颌关节紊乱病患者的心理健康状况进行分类别的评估分析。方法 随机选择口腔科门诊就诊的颞下颌关节紊乱病患者88例为病例组,健康正常人92例为对照组,心理科抑郁患者92例及焦虑患者90例为心理疾病组,采用症状自评量表(SCL-90)量表、焦虑自评量表(SAS)、抑郁自评量表(SDS)、艾森克人格问卷(EPQ)进行问卷调查,将量表调查结果分别归类整理后,使用统计软件SPSS13.0进行统计学分析。结果 TMD患者与正常对照组相比,在SCL-90、SAS、SDS评分中多项有统计学意义,在病例组中,多次患病和初次患病相比、高学历与低学历患者相比,在焦虑和抑郁上有统计学意义。颞下颌关节紊乱病患者与心理疾病患者相比,心理疾病患者在焦虑和抑郁上得分高于颞下颌关节紊乱病患者。结论 颞下颌关节紊乱病患者存在着不同程度的心理障碍,但远未达到心理疾病的程度,且颞下颌关节紊乱病患者中的不同群体心理状况也有所不同,这对于TMD患者心理上的疏导提供了一定的依据。
Objective To explore the research and analysis of temporomandibular disorder(TMD)patients' psychological states. Methods People diagnosed in the dental clinic were identified as target population.Totally, 88 patients with TMD were recruited as case control,whereas 92 normal people,92 patients with mental depression and 90 patients with dysphoria disorders were collected as control group.Questionnaire survey was carried out based on Symptom Checklist(SCL-90),Self-rating Anxiety Scale(SAS),Self-rating Depression Scale(SDS)and Eysenck Personality Questionnaire(EPQ). Correlations between TMD and psychological factors were assessed using the statistical methods. Results Compared with normal people,patients with TMD showed statistically significant diversity in SCL-90,SAS and SDS.In subgroup analysis of patients with TMD,patients with repeated disease history or advanced education degree presented significant variation in terms of depression and anxiety when compared with those with first diagnosed or lower education degree.Compared with patients with mental illnesses,patients with TMD showed significant lower score in depression and anxiety. Conclusion In TMD treatment we should not only adapt traditional physical therapy,medical therapy,corrective therapy and surgical treatment but also pay attention to psychological treatment to correct the patients' negative emotions,which may improve the symptoms and actively terminate disease process.
