Chemerin基因在自发性2型糖尿病大鼠脂肪组织中表达的研究

目的：研究网膜及皮下脂肪组织中Chemerin在自发性2型糖尿病OLETF大鼠中的基因表达水平,探讨Chemerin与肥胖、胰岛素抵抗及2型糖尿病发病关系的机制。方法：4周龄正常不出现糖尿病的LETO大鼠10只作为对照组,4周龄OLETF大鼠10只,2型糖尿病的OLETF大鼠9只,于42周时处死。取网膜及皮下脂肪组织,以实时荧光定量法检测网膜及皮下脂肪组织Chemerin基因的表达水平。皓果：模型组的网膜及皮下脂肪组织Chemerin的基因表达明显高于LETO对照组（P〈0．01）;模型组大鼠网膜脂肪组织Chemerin的基因表达明显高于皮下脂肪组织（P〈0．01）。结论：脂肪因子Chemerin基因表达水平的变化是肥胖、胰岛素抵抗和2型糖尿病发病的机制之一。     

延吉机场口岸鼠类种群、季节消长及其体表寄生虫调查

目的掌握延吉机场口岸鼠类的种群构成、季节消长、体外寄生虫情况,为口岸传染病监测和媒介生物控制提供依据。方法采用ELTON夹夜法,每月下旬连放3天,连续12个月,对该口岸鼠类的种群构成、季节消长、体外寄生虫进行调查。结果本次调查共捕获鼠类150只,隶属2目4科7属8种。蚤80匹,螨23只。黑线姬鼠为优势种,占64%;该口岸年平均鼠密度为4.18%,密度变化呈双高峰,7月和8月分别为8.08%和8.25%,10月为12.9%;鼠体平均染蚤率为27.33%,平均蚤指数0.53;鼠体平均染螨率为6.67%,平均螨指数0.15。结论延吉机场口岸鼠密度高于国境口岸医学媒介生物控制标准,鼠密度高峰期正处于该地区流行性出血热高发季节,应经常开展防鼠灭鼠工作,防止有关传染病的发生和流行。     

基于SPSS的生物统计数据的2D3D作图

目的结合生物统计学的软件SPSS 11.0,进行数据处理和图形结果输出,并对SPSS 11.0图表输出方式加以改进,结合MATLAB进行模拟演示,以得到更加形象并具有动态趋势的统计图。方法结合NCPP和CPP对小鼠脾脏激活作用的比较的数据,对其进行独立样本t检验,然后利用MATLAB编程进行演示。结论实现SPSS 11.0软件与MATLAB编程的相互结合,得到很形象的图形结果。     

Th17 cell‐derived miR‐155‐5p modulates interleukin‐17 and suppressor of cytokines signaling 1 expression during the progression of systemic sclerosis

Background miR‐155‐5p is associated with autoimmune diseases. T helper 17 (Th17) cells, interleukin (IL)‐17, and suppressor of cytokines signaling 1 (SOCS1) have important roles in the pathogenesis of systemic sclerosis (SSc). The purpose of this study was to explore the role of miR‐155‐5p in the regulation of IL‐17 and SOCS1 expression in Th17 cells and the subsequent effect on SSc disease progression.MethodsTh17 cells were isolated from peripheral blood mononuclear cells of SSc patients and healthy controls (HCs). RT‐qPCR and western blotting were used to examine the expression patterns of miR‐155‐5p, IL‐17, and SOCS1. Luciferase reporter assays were performed to confirm SOCS1 as a target of miR‐155‐5p. RNA pull‐down assays were performed to detect the interaction of IL‐17 and SOCS1 with miR‐155‐5p. In situ hybridization was performed to analyze the co‐expression pattern of miR‐155‐5p and IL17A in Th17 cells.ResultsThe levels of Th17 cell‐derived miR‐155‐5p were significantly up‐regulated in SSc patients compared with HCs, and its levels were negatively correlated with SOCS1 levels. Meanwhile, miR‐155‐5p positively regulated IL‐17 expression levels in Th17 cells isolated from SSc patients as the disease progressed. Using pmirGLO vectors, SOCS1 was confirmed as a target of miR‐155‐5p. The binding status of IL‐17 and SOCS1 to miR‐155‐5p was related to SSc progression. An increase in the co‐localization of miR‐155‐5p and IL‐17 was associated with greater SSc progression.ConclusionsIL‐17 and SOCS1 expression modulated by Th17 cell‐derived miR‐155‐5p are critical for SSc progression, which may provide novel insights into the pathogenesis of SSc.     

No association between thrombospondin-4 A387P polymorphism and acute coronary syndrome in Chinese Han population

Objective: The thrombospondin-4 (TSP-4) gene G29926C (A387P) polymorphism was recently reported to be associated with an increased risk of MI (myocardial infarction) in American population. However, several subsequent studies produced controversial findings. The aim of this study was to explore the possible association between TSP-4 A387P polymorphism and ACS (acute coronary syndrome) in Chinese Han population. Methods :A case-control study including 412 patients with ACS and 337 controls free from CAD (coronary artery disease) was conducted. TSP-4 A387P polymorphism was determined by PCR (polymerase chain reaction) and RFLP (restriction fragment length polymorphism) analysis. Results:Slightly decreased frequency of GC genotype was observed in patients with ACS, compared with controls (5.3% vs. 7.1%), but the difference did not reach statistical significance (P = 0.31 ). Similarly, the prevalence of C allele was 2.7% and 3.6% for ACS and control groups, respectively (P = 0.32). None of homozygote was detected for C allele. Further analyses in subjects subgrouped according to sex and age also showed no association of TSP-4 A387P polymorphism with ACS. Furthermore, after adjustment for conventional risk factors by multiple logistic regression analysis, the carrier prevalence of C allele did not differ significantly between ACS and control groups (OR = 0.85; 95% CI:0.45-1.59; P = 0.60). Conclusion:The present study suggested that the TSP-4 A387P variant showed a low prevalence compared with western populations and failed to associate with an altered risk of ACS in Chinese Han population. The findings further supplement experimental data for TSP-4 gene study of coronary disease.     

Comparative study on the gastrointestinal- and immune- regulation functions of Hedysari Radix Paeparata Cum Melle and Astragali Radix Praeparata cum Melle in rats with spleen-qi deficiency,based on fuzzy matter-element analysis

ContextHedysari Radix Praeparata Cum Melle (HRPCM) and Astragali Radix Praeparata Cum Melle (ARPCM) are used interchangeably in clinics to treat spleen-qi deficiency (SQD) symptom mainly including gastrointestinal dysfunction and decreased immunity, which has unknown differences in efficacy.ObjectiveTo investigate the differences between HRPCM and ARPCM on intervening gastrointestinal- and immune-function with SQD syndrome.Materials and methodsAfter the SQD model was established, the Sprague–Dawley (SD) rats were randomly divided into nine groups (n = 10): normal; model; Bu-Zhong-Yi-Qi Pills; 18.9, 12.6 and 6.3 g/kg dose groups of HRPCM and ARPCM. Gastrointestinal function including d-xylose, gastrin, amylase vasoactive intestinal peptide, motilin, pepsin, H⁺/K⁺-ATPase, Na⁺/K⁺-ATPase, sodium-glucose cotransporter 1 (SGLT1), glucose transporter 2 (GLUT2) and immune function including spleen and thymus index, blood routine, interleukin (IL)-2, IL-6, interferon-γ (IFN-γ), tumour necrosis factor-α (TNF-α), immunoglobulin (Ig) M, IgA, IgG and delayed-type hypersensitivity (DTH) were detected. Finally, the efficacy differences were analysed comprehensively by the fuzzy matter-element method.ResultsIn regulating immune, the doses differences in efficacy between HRPCM and ARPCM showed in the high-dose (18.9 g/kg), but there were no differences in the middle- and low- dose (12.6 and 6.3 g/kg); the efficacy differences were primarily reflected in levels of IL-6, IFN-γ, TNF-α and IgM in serum, and the mRNA expression of IL-6 and IFN-γ in the spleen. In regulating gastrointestinal, the efficacy differences were primarily reflected in the levels of D-xylose, MTL, and GAS in serum, and the mRNA and protein expression of SGLT1 and GLUT2 in jejunum and ileum.Discussion and conclusionsHRPCM is more effective than ARPCM on regulating gastrointestinal function and immune function with SQD syndrome. Therefore, we propose that HRPCM should be mainly used to treat SQD syndrome in the future.     

羟氯喹在治疗口腔黏膜糜烂型扁平苔藓中的作用

目的观察以抗疟药羟氯喹（HCQ）为主的联合化学治疗方案治疗糜烂型口腔黏膜扁平苔藓（OLP）的临床疗效。方法选取2001年1月至2011年2月间收治糜烂型OLP患者580例,从临床应用HCQ治疗效果的角度进行计划性分析和研究,着重观察疗效和毒副反应。结果按近期疗效标准分为显效、有效和无效3组,结果显示观察组467例中显效率为34．04％,有效率为55．03％,总有效率达89．07％,远高于对照组的37．16％;毒副反应发生率为20．34％,主要集中于皮肤、黏膜和神经系统反应方面的诸如色素沉着、脱屑、头晕头痛、失眠等轻型症状,其中最严重的为视网膜病变,仅发生1例,停药后病情稳定。结论针对OLP的治疗,以HCQ为主的联合化学治疗方案可消除糜烂和降低恶变危险度,产生的毒副反应可控,不会影响其临床应用。     

南京“5.7”放射事故患者受照后2年的医学观察

目的 通过对2014年南京"5.7"¹⁹²Ir源放射事故患者受照后2年的医学观察,探讨放射损伤的远后效应及肢体局部放射损伤的康复治疗效果,为核与辐射事故医学应急提供临床资料。方法 仔细询问受照患者的病史,进行详细的体格检查,观察和记录临床症状和体征,系统评价其血液系统、免疫系统、生殖系统、眼、神经-精神系统等改变,观察并评价患者右下肢功能障碍的康复治疗疗效。结果 造血、免疫系统基本恢复,但骨髓穿刺仍提示右侧髂骨骨髓增生低下。性激素水平在正常范围内,但精液检查显示精子活率为0。眼晶状体、视网膜及眼底均出现放射性损伤。心理测评显示,患者心理状态较稳定。右下肢皮肤伤口愈合良好,但仍有功能障碍及疼痛感,通过康复治疗后功能障碍较前好转,药物结合物理疗法镇痛效果良好。结论 临床治疗尽早干预可使轻度骨髓型急性放射病患者的生理功能完全或部分恢复。     

养老机构预立医疗照护计划研究进展

介绍预立医疗照护计划的概念内涵,综述养老机构开展预立医疗照护计划的必要性、实践现状（包括介入预立医疗照护计划讨论的时机、讨论牵涉人员及内容、干预策略及效果）、影响因素,以期为今后在我国养老机构中开展预立医疗照护计划提供参考。