A visible fluorescent nanovaccine based on functional genipin crosslinked ovalbumin protein nanoparticles

Accurate and efficient antigen delivery is crucial for inducing a strong and long-term immune response. A visible protein nanovaccine made from antigen could provide a novel and promising technology for secure and efficient delivery of the antigen with imaging visualization. In this study, a functional nanovaccine based on genipin crosslinked ovalbumin (OVA) fluorescent nanoparticles with chitosan (CS-OVA-NPs) was developed. The nanovaccine can carry abundant antigens by self-crosslinking without additional carriers. The fluorescence imaging technique was applied to monitor and reveal the process of antigen delivery in vivo based on the fluorescence of genipin with a non-invasive and real-time manner. This functional OVA nanovaccine can enhance the uptake of OVA in Dendritic Cells (DCs) and further promote DCs to maturate in vitro. In vivo study further indicated CS-OVA-NPs could trigger antigen-specific immune responses, which demonstrated that this fluorescent nanovaccine provided a novel design approach for accurate and efficient vaccine delivery.     

中医院国医馆建设的实践与探索△

目的：探讨国医馆建设的创新做法和实践效果,为传承和发展中医学提供路径。方法：通过完善基础设施、夯实人才队伍、拓展重点学科、培育中医文化、创新管理机制,提高基层中医诊疗服务能力。结论：国医馆建立了以预防、治疗、康复、保健和养生为一体的服务模式,提高了临床疗效,扩大了医疗服务半径,提升了中医服务品牌,取得良好的社会效益。     

Bayesian inference for unidirectional misclassification of a binary response trait

When assessing association between a binary trait and some covariates, the binary response may be subject to unidirectional misclassification. Unidirectional misclassification can occur when revealing a particular level of the trait is associated with a type of cost, such as a social desirability or financial cost. The feasibility of addressing misclassification is commonly obscured by model identification issues. The current paper attempts to study the efficacy of inference when the binary response variable is subject to unidirectional misclassification. From a theoretical perspective, we demonstrate that the key model parameters possess identifiability, except for the case with a single binary covariate. From a practical standpoint, the logistic model with quantitative covariates can be weakly identified, in the sense that the Fisher information matrix may be near singular. This can make learning some parameters difficult under certain parameter settings, even with quite large samples. In other cases, the stronger identification enables the model to provide more effective adjustment for unidirectional misclassification. An extension to the Poisson approximation of the binomial model reveals the identifiability of the Poisson and zero‐inflated Poisson models. For fully identified models, the proposed method adjusts for misclassification based on learning from data. For binary models where there is difficulty in identification, the method is useful for sensitivity analyses on the potential impact from unidirectional misclassification.     

成都市双流区3~6岁学龄前儿童体质状况调查分析

目的 分析成都市双流区学龄前儿童体质现状,了解学龄前儿童体质水平的年龄性别差异及发展特点。方法 2017年5月采用分层整群抽样方法抽取1 130名3~6岁儿童为研究对象,并依据 《国民体质测定标准手册》( 幼儿部分) 进行体质测试,实际检测儿童1 077名,采用方差分析对不同年龄组儿童的体质总分进行比较,采用成组设计t检验对不同性别儿童的体质总分进行比较,采用χ²检验对不同年龄组及不同性别的综合评级分布进行比较。结果 研究共对双流区5所公立幼儿园的1 077名 3 ～ 6 岁学龄前儿童进行体质测量,学龄前儿童体质测试总体合格率为 87.16% 。体质总分方面,男童及女童不同年龄组间的总分差异有统计学意义(P<0.05);3.5岁组、4岁组及4.5岁组的男女童体质总分存在差异,且均为女童优于男童。体质评级方面,男童及女童优秀率最高的年龄组分别为5.5岁组(7.69%)与4.5岁组(12.06%);各年龄组的女童的优秀率均高于男童,但仅有4.5岁组男女童的差异有统计学意义(P<0.05)。结论 成都市双流区 3 ～ 6 岁学龄前儿童体质水平较低;应针对不同年龄、不同性别制定个性化的干预策略,以增强学龄前儿童的体质发展水平。     

Bacterial community profiles of endodontic abscesses from Brazilian and USA subjects as compared by denaturing gradient gel electrophoresis analysis

This study compared the bacterial community profiles of the microbiota associated with acute apical abscesses from Brazilian and USA patients using denaturing gradient gel electrophoresis (DGGE). DNA was extracted from purulent exudate aspirates and part of the 16S rRNA gene was amplified by polymerase chain reaction and separated by DGGE. The resulting banding patterns, which were representative of the bacterial community structures in samples from the two locations, were then compared. Distinct DGGE banding patterns were observed from different samples. Ninety-nine bands with distinct positions in the gels were detected, of which 27 were found only in the USA samples and 13 were exclusive to Brazilian samples. Four of the 59 shared bands showed very discrepant findings with regard to prevalence in the two locations. Cluster analysis of DGGE banding profiles showed a great variability in the bacterial populations associated with teeth with abscesses regardless of the geographical location. Two big clusters, one for each location, were observed. Other clusters contained a mixture of samples from the two locations. The results of the present study demonstrated a great variability in the bacterial community profiles among samples. This indicates that the bacterial communities of abscesses are unique for each individual in terms of diversity. The composition of the microbiota in some samples showed a geography-related pattern. Furthermore, several bands were exclusive for each location and others were shared by the two locations and showed great differences in prevalence.     

196例女性外阴皮肤病变临床病理统计

探讨遂宁地区女性外阴皮肤病变的临床病理特征。收集本地区196例女性外阴皮肤病理标本,经病理检查确定病变性质。196例标本中,慢性外阴营养不良95例（48.5%）,尖锐湿疣58例（29.6%）,软纤维瘤10例（5.1%）,鳞状上皮乳头状瘤8例（4.7%）,炎症性病变7例（3.6%）,表皮囊肿6例（3.1%）,恶性病变4例（2.0%）,其他病变8例（4.1%）。本地区女性外阴皮肤疾病以慢性外阴营养不良及尖锐湿疣为主,应加强对这两类疾病的诊断及治疗力度。     

早期β-hCG水平与氨甲蝶呤治疗输卵管妊娠疗效的相关性

明确β-绒毛膜促性腺激素（β-hCG）水平与氨甲蝶呤（MTX）治疗4～7 d后治疗效果的相关性。回顾性分析34例输卵管妊娠患者且接受单剂量MTX治疗的临床资料。单剂量MTX治疗有效率为76.47%（26/34）。在26例MTX治疗有效患者中,7例显示治疗0～4 d后β-hCG水平降低＞15%; 22例（64.71%）表现出治疗4～7 d后 β-hCG水平降低＞15%。对于治疗4～7 d 后β-hCG水平降低＞15%患者,RCO曲线下面积是81.7%,而治疗0～4 d后 β-hCG水平降低＞15%患者对应值64.0%。 与治疗0～4 d后比较,治疗4～7 d后 β-hCG水平降低＞15%能更很好预测单剂量MTX治疗有效。     

杞菊地黄丸联合环丙沙星治疗慢性肾盂肾炎的疗效观察

目的探讨杞菊地黄丸联合环丙沙星治疗慢性肾盂肾炎的临床效果。方法选取日照市妇幼保健院在2015年12月—2016年12月收治的慢性肾盂肾炎患者141例,随机分成对照组(70例)和治疗组(71例)。对照组患者口服盐酸环丙沙星片,1片/1次,3次/d;治疗组在对照组的基础上口服杞菊地黄丸,8丸/次,3次/d。所有患者均经过规律治疗4周。观察两组患者临床疗效,比较治疗前后两组患者主要症状积分、肾功能指标和不良反应情况。结果治疗后,对照组患者临床总有效率为85.71%明显低于治疗组的98.59%,停药半年内对照组和治疗组的重新感染率分别为12.86%、2.82%,两组比较差异具有统计学意义(P0.05)。治疗后,两组主要症状积分明显降低(P0.05);且治疗组积分明显低于对照组(P0.05)。治疗后,两组患者的血清肌酐、血尿素氮和尿微量白蛋白水平均显著降低(P0.05);且治疗组患者肾功能指标水平明显低于对照组(P0.05)。治疗期间,治疗组患者不良反应发生率为4.23%,明显低于对照组患者的17.14%,两组比较差异具有统计学意义(P0.05)。结论杞菊地黄丸联合环丙沙星治疗慢性肾盂肾炎疗效显著,可降低停药半年内重新感染率,具有一定的临床推广应用价值。