Research of connective tissue dysplasia influence on teething

PurposeThis work aimed to study the rate and quality of maturation of the mineral component of retained teeth 3.8, 4.8 and lower jaw fragment of a human in connective tissue dysplasia in different periods of postpartum ontogenesis.MethodsThe study involved 102 men (76 with connective tissue dysplasia and 26 without connective tissue dysplasia) divided into groups by age: 31–40, 41–50, 51–60 years. One tooth 3.8, 4.8 and a fragment of the alveolar part of the lower jaw in the projection of teeth 3.8, 4.8 0.5*0.5 cm in size were extracted from each examinee for medical indications.ResultsLow optical density values are observed at the age of 41–50 years, at the age of 51–60 years, indicating decreased mineral density and the presence of total areas of hypomineralization from the age 31–40 years in connective tissue dysplasia. At the age of 41–50, 51–60 years, at the boundary of connective tissue structures and periosteum, a pronounced sclerosis and deformation of delineation elements were observed; at the age of 31–40 years, the indicated changes were less pronounced. At the age of 31–40 years, the level of bone plate dissection has a local character, after 40 years, it has a generalized character.ConclusionProgressive osteoporosis of the mandible and incomplete amelogenesis are an obstacle to the correct and harmonious teething of the lower wisdom teeth after the age of 30.     

老年人群共病问题现状挑战与应对策略

中国已进入老龄化社会，共病是老年人群较为突出的公共健康问题。总结梳理老年人群共病领域研究现状，分析探讨相应策略对于老年共病人群的临床综合管理具有重要意义。本文重点从共病管理研究实践、共病诊疗模式、共病用药策略、共病医护团队及健康管理服务体系建设方面分析了该领域研究现状，同时提出建立以患者为中心的共病管理研究方案、推广应用老年共病评估工具、开展共病共有病因及机制研究、制订共病管理规范性指南/共识、借鉴中医学"以证统病""整体观念"思想、融合互联网+技术与智能可穿戴设备及开展共病早期风险评估与管理等应对策略，综合展望共病领域后期研究方向，以期为该领域进一步深入研究提供参考。     

Bone regeneration in critical-sized mandibular symphysis defects using bioceramics with or without bone marrow mesenchymal stem cells in healthy,diabetic, osteoporotic,and diabetic-osteoporotic rats

ObjectivesTo compare new bone formation in mandibular critical-sized bone defects (CSBDs) in healthy, diabetic, osteoporotic, and diabetic-osteoporotic rats filled with bioceramics (BCs) with or without bone marrow mesenchymal stem cells (BMSCs).MethodsA total of 64 adult female Sprague-Dawley rats were randomized into four groups (n = 16 per group): Group 1 healthy, Group 2 diabetic, Group 3 osteoporotic, and Group 4 diabetic-osteoporotic rats. Streptozotocin was used to induce type 1 diabetes in Group 2 and 4, while bilateral ovariectomy was used to induce osteoporosis in Group 3 and 4. The central portion of the rat mandibular symphysis was used as a physiological CSBD. In each group, eight defects were filled with BC (hydroxypatatite 60% and β-tricalcium phosphate 40%) alone and eight with BMSCs cultured on BC. The animals were sacrificed at 4 and 8 weeks, and the mandibles were processed for micro-computed tomography to analyze radiological union and bone mineral density (BMD); histological analysis of the bone union; and immunohistochemical analysis, which included immunoreactivity of vascular endothelial growth factor (VEGF) and bone morphogenetic protein 2 (BMP-2).ResultsIn all groups (healthy, diabetics, osteoporotics, and diabetics-osteoporotics), the CSBDs filled with BC + BMSCs showed greater radiological bone union, BMD, histological bone union, and more VEGF and BMP-2 positivity, in comparison with CSBDs treated with BC alone (at 4 and 8 weeks).ConclusionsApplication of BMSCs cultured on BCs improves bone regeneration in CSBDs compared with application of BCs alone in healthy, diabetic, osteoporotic, and diabetic-osteoporotic rats.     

基于网络药理学和分子对接探讨益肾健骨方治疗绝经后乳腺癌患者骨质疏松的机制及实验验证＊

目的 运用网络药理学和分子对接的方法研究益肾健骨方治疗绝经后乳腺癌骨质疏松症的作用机制。方法 通过中药系统药理数据库和分析平台（TCMSP）和中医综合数据库（TCMID）获取益肾健骨方的活性成分和靶点，以口服生物利用度（OB）≥30%和类药性（DL）≥0.18为阈值进行潜在活性成分筛选。通过药物靶标数据库（TTD）、药物数据库（DrugBank）、疾病相关的基因与突变位点数据库（DisGenet）数据库收集疾病靶点，筛选出与益肾健骨方的交集靶点。运用Cytoscape3.7.2构建疾病-化合物-靶点网络，蛋白相互作用网络（PPI）。采用Metascape进行基因本体（GO）功能富集分析和京都基因与基因百科全书（KEGG）通路富集分析，通过分子对接将关键靶点和潜在靶点与活性成分的相互作用进行验证。结果 益肾健骨方中共筛选到药代动力学较好的活性成分β-谷甾醇、谷甾醇、豆甾醇、槲皮苷、山柰酚等113种，得到GO富集条目（P<0.05）1048条，KEGG通路富集得到84条信号通路（P<0.05）。分子对接结果显示槲皮苷与核心靶点和潜在靶点结合稳定，涉及肿瘤通路、人乳头瘤病毒感染通路、PI3K-Akt信号通路等。大鼠体内实验验证益肾健骨方可以增加骨小梁密度及骨组织胶原溶剂比，改善大鼠骨质疏松状态。结论 益肾健骨方可能通过多靶点、多通路治疗乳腺癌绝经后骨质疏松症。     

两种补肾方药对骨质疏松症患者骨密度及疼痛评分影响的Meta分析

目的:系统评价并对比以金匮肾气丸为主的补肾方药与以六味地黄丸为主的补肾方药在治疗骨质疏松症的临床疗效。方法:计算机检索SCI、PubMed、中国期刊全文数据库(CNKI)、Cochrane图书馆、EMbase、万方等各类中、英文数据库,检索年限截止至2019年3月,检索有关补肾方药治疗骨质疏松症的随机对照文献(Randomized Controlled Trial,RCTs)。采用RevMan 5.3软件进行数据的Meta分析。结果:纳入5项RCT分为两组(一组2项,一组3项),涉及受试者421例,Meta分析结果显示,在骨密度(Bone Mineral Density,BMD)方面:以金匮肾气丸为主的补肾方药,治疗组优于对照组最为明显(MD=-2.13,95%CI为-3.00^-1.26,P<0.00001);在视觉模拟疼痛评分(Visual Analogue Scale,VAS)方面:以金匮肾气丸为主的补肾方药,治疗组优于对照组最为明显(MD=0.03,95%CI为-0.01~0.06,P=0.10)。结论:以金匮肾气丸为主的补肾方药在治疗骨质疏松症的临床疗效比以六味地黄丸为主的补肾方药积极意义更高。     

补肾壮骨汤联合针灸及阿仑膦酸钠治疗骨质疏松症的临床效果评估

目的:探讨补肾壮骨汤联合针灸及阿仑膦酸钠治疗骨质疏松症的临床效果。方法:将2018年5月-2019年5月本院接收的骨质疏松症患者94例作为本次研究中的主要观察对象。通过电脑随机法,予以分组探讨,包括常规组(予以阿仑膦酸钠治疗)、研究组(阿仑膦酸钠,补肾壮骨汤联合针灸),各47例。结果:研究组临床疗效高于常规组(P<0.05);研究组治疗后中医证候积分、疼痛视觉模拟评分量表(Visual Analogue Scale,VAS)评分均低于常规组(P<0.05);研究组全髋以及腰椎L1-4骨密度高于常规组(P<0.05);研究组血清骨钙素(Bone Gla Protein,BGP)以及血清钙(Calcium,Ca)骨代谢指标高于常规组,碱性磷酸酶(Alkaline Phosphatase,ALP)低于常规组(P<0.05),两组血清磷(Phosphorus,P)水平无显著差异(P>0.05)。结论:应用阿仑膦酸钠治疗的同时,予以针灸联合补肾壮骨汤口服治疗,能够显著减轻患者症状,增加骨密度,优化骨代谢,效果确切,值得临床大力推荐。     

社区老年人骨质疏松症健康行为和自我效能的调查研究

目的 了解北京市社区老年人预防骨质疏松症健康行为和自我效能的情况，并分析影响自我效能的相关因素。方法 采用方便抽样法选取2016 年1～3 月北京市朝阳区两个社区的109 名60 岁以上老年人为调查对象，应用含预防骨质疏松症健康行为信息的一般情况调查表和骨质疏松症自我效能问卷对其进行调查。结果 （1）预防骨质疏松症相关性健康行为方面，49.54%的老年人补充钙剂，53.21%的老年人运动量合理，28.44%的老年人服用维生素；（2）社区老年人骨质疏松症总自我效能得分为（69.10±19.36）分，不同文化程度、职业的自我效能得分比较，差异有统计学意义（P＜0.05）。结论 社区老年人运动和摄钙行为不足，自我效能有待提高，应加强骨质疏松症的健康教育普及及行为方式干预，促使老年人养成良好的生活习惯，从而更好地预防骨质疏松；同时应重点关注文化程度较低的老年人，给予其更多的指导和帮助，并针对不同职业的老年人分别开展健康教育。     

Hypovitaminosis D in patients with osteoporotic hip fractures

BackgroundInadequate serum vitamin D levels are associated with secondary hyperparathyroidism, increased bone turnover, bone loss and increased fracture risk. Vitamin D is well recognized to be suboptimal in older patients when compared to age-matched controls. There are no published studies on the prevalence of hypovitaminosis D in Indian population with fragility fractures around the hip associated with osteoporosis and comminution at the fracture site.AimTo investigate the prevalence of hypovitaminosis D in patients admitted with osteoporotic hip fractures and associated fracture site comminution in a South Indian Institute.Material & MethodsA prospective cross sectional study was conducted on 100 patients admitted with osteoporotic hip fracture. Measurement of serum 25-hydroxy vitamin D was done and the same was correlated with the degree of osteoporosis using Singh’s index and fracture site comminution.ResultsOut of 100 patients studied, 92% had hypovitaminosis D with mean vitamin D level of 16.08 ± 5.95 ng/dl (65% vitamin D deficiency with mean 13.16 ± 4.24 ng/dl and 27% vitamin D insufficiency with mean 23.11 ± 2.62 ng/dl) and 94% had osteoporosis with Singh’s index grade 3 or less. Out of the 36 patients with fracture site comminution 34 patients (94%) had hypovitaminosis D and 33 patients (91.6%) had osteoporosis. Statistical significance was established for all the variables.ConclusionSignificant association was found between hypovitaminosis D, osteoporosis and fracture site comminution. High prevalence of hypovitaminosis D in patients presenting with hip fractures and fracture site comminution implicates the necessity for proper evaluation and effective supplementation of vitamin D in elderly patients along with anti-osteoporotic regimens for effective prevention and appropriate management of osteoporotic hip fractures.