Chevron osteotomy versus scarf osteotomy for hallux valgus correction: A meta-analysis

BackgroundThis study intended to investigate the optimal surgical strategy in hallux valgus (HV), and to provide a basis for clinical treatment of HV.MethodsStudies related to chevron osteotomy and scarf osteotomy for HV were enrolled from online databases. Hallux valgus angle (HVA) was the main outcome variable. Enrolled studies included posttreatment data for intermetatarsal angle (IMA), American Orthopaedic Foot & Ankle Society (AOFAS) score, and complications. A random-effects model was applied for significant heterogeneity. Otherwise, a fixed-effects model was used. Heterogeneity was assessed with Q test and I² statistics. Publication bias was evaluated with Egger's test. Based on the influence of weighted mean difference values or odds ratios, a sensitivity analysis was performed.ResultsFour studies including 384 subjects were evaluated to determine the optimal surgical strategy for HV. There was no statistically significant difference between chevron and scarf groups for HVA, IMA, AOFAS score, and complication rates. Sensitivity analysis showed good stability. The likelihood of publication bias was small.ConclusionThe effects of chevron osteotomy and scarf osteotomy for HV are comparable. Chevron osteotomy is less technically demanding.     

LINC00205 promotes proliferation,migration and invasion of HCC cells by targeting miR-122-5p

Long non-coding RNAs (lncRNAs) have been identified as crucial regulators in the tumorigenesis and progression of hepatocellular carcinoma (HCC). Recently, long intergenic non-protein coding RNA 205 (LINC00205) has been identified as a prognostic biomarker in HCC. However, the biological role of LINC0205 and its potential molecular mechanism are poorly investigated. Here, we found that the expression of LINC00205 was dramatically up-regulated in HCC tissues compared to adjacent nontumor tissues. Furthermore, the level of LINC00205 in both Hep3B and Huh7 cells was prominently higher than that in normal hepatic cell line LO2. Notably, the high expression of LINC00205 was strongly correlated with tumor size ≥5 cm, venous infiltration and advanced tumor stages. Functionally, LINC00205 knockdown obviously repressed the proliferation, migration and invasion of Hep3B and Huh7 cells in vitro. An inverse correlation between LINC00205 and miR-122-5p was detected in HCC tissues. Interestingly, LINC00205 knockdown increased the level of miR-122-5p in both Hep3B and Huh7 cells. Mechanistically, luciferase reporter assay demonstrated LINC00205 acted as a competing endogenous RNA (ceRNA) by directly interacting with miR-122-5p. More importantly, miR-122-5p overexpression significantly restrained the proliferation, migration and invasion of HCC cells. Collectively, our study provides solid evidence to support the oncogenic role of LINC00205 in HCC, which may be benefit for the improvement of HCC therapy.     

MicroRNA-301b-3p accelerates the growth of gastric cancer cells by targeting zinc finger and BTB domain containing 4

MicroRNAs (miRNAs) have been found to be aberrantly expressed and exert essential roles in the tumorigenesis and progression of gastric cancer (GC). miR-301b-3p has been recognized as a cancer-related miRNA in lung cancer, bladder cancer and hepatocellular carcinoma. However, the function of miR-301b-3p in GC progression and its underlying mechanism have not been studied yet. In this study, we found that miR-301b-3p expression was up-regulated in GC tissues compared to adjacent noncancerous tissues. Furthermore, the elevated levels of miR-301b-3p were detected in GC cell lines (SGC-7901, AGS, MKN-45 and MGC-803) as compared with GES-1 cells. Interestingly, GC tissues from patients with tumor size ≥ 5 cm and advanced tumor stages showed obvious higher levels of miR-301b-3p compared to matched controls. Functionally, miR-301b-3p knockdown prominently inhibited cell proliferation, and induced cell cycle arrest at G1 phase and apoptosis in MGC-803 cells. Meanwhile, ectopic expression of miR-301b-3p conversely regulated these biological behaviors of MKN-45 cells. Next, we found that miR-301b-3p knockdown increased, whereas miR-301b-3p overexpression reduced the expression of zinc finger and BTB domain containing 4 (ZBTB4) in GC cells. Accordingly, luciferase reporter assay identified ZBTB4 as a direct target of miR-301b-3p. ZBTB4 overexpression markedly restrained the growth of MGC-803 cells. More importantly, ZBTB4 silencing partially reversed miR-301b-3p knockdown-induced tumor suppressive effects on MGC-803 cells. In conclusion, we firstly revealed that miR-301-3p was highly expressed in GC and contributed to tumor progression via attenuating ZBTB4, which might provide a novel molecular-targeted strategy for GC treatment.     

陕西省新型冠状病毒传播与防控的回顾性分析

目的 分析陕西省严重急性呼吸综合征冠状病毒2(Severe Acute Respiratory Syndrome Coronavirus 2,SARS-CoV-2)的传播与防控措施,为当前的境外输入以及今后突发传染病的防控提供一定的理论指导。方法 整理陕西省卫生健康委员会网站公布的SARS-CoV-2流行、防控的相关资料,绘制病毒流行趋势图、传播网络图以及防控举措流程图。结果 陕西省SARS-CoV-2感染病例以输入病例为主(127/256,49.6%)。具有明确传播关系的病例共124例,主要因家庭密切接触和聚餐导致,跨市传播现象不明显;暂无境外输入关联本土病例;这与陕西省防控措施的全面落实关联密切。结论 提高民众特别是家庭成员的防控意识,对接触者实施早隔离、早追踪能有效地遏制SARS-CoV-2的暴发性流行。     

陕西汉族35个插入/缺失位点的多态性与遗传结构分析

目的 分型并评估35个插入/缺失多态性(DIP)位点在陕西汉族中的多态性及法医学应用效能,并探索陕西汉族的群体遗传结构。方法 收集来自陕西地区汉族305名无关健康个体血样,基于课题组前期甄选并构建的包含35个DIP位点的复合扩增体系进行检测和分型,并计算35个DIP位点的等位基因频率和法医学参数。通过分子方差分析、系统发育树的构建、多维尺度分析、主成分分析和遗传结构分析,进一步探索陕西汉族与29个参考群体之间的群体遗传关系。结果 35个DIP位点在陕西汉族中累积的个体识别率和非父排除率值分别为0.999 999 999 999 991 119和0.9991。群体遗传学分析结果显示陕西汉族与我国不同地区的汉族群体遗传关系更近。结论 35个DIP位点在陕西汉族的多态性较高,可应用于法医学个体识别,也为陕西汉族的群体遗传学研究提供了基础数据。     

Who benefits the most from basic health insurances? Income-related equity analysis for patients with chronic diseases in China

Background

To relieve patients' financial burden, China has established three basic health insurances: Urban Employee Basic Medical Insurance (UEBMI), Urban Resident Basic Medical Insurance (URBMI), and the New Rural Cooperative Medical Scheme (NRCMS). However, because the insured rich have more opportunity to access health care, more subsidies might be paid to them rather than the poor. We analysed the income-related benefit equity of health insurance for patients with chronic diseases to investigate who benefits most from government health insurance in China.

Double ulnar osteomy for the treatment of congenital radial head dislocation

ObjectiveThe aim of this study was to retrospectively evaluate the effects of our double osteotomy technique in the treatment of congenital radial head dislocation (CRHD).MethodsA total 14 children (14 elbows; 71.42% male; mean age: 9.31 ± 3.06 years) with CRHD who underwent double osteotomy of the proximal ulna between April 2010 and June 2015 were included in the study. The patients with CRHD were identified according to medical history, plain radiographs or magnetic resonance imagings. The outcomes were evaluated through comparison of the preoperative and postoperative motion range of elbow and Mayo Elbow Performance Score (MEPS).ResultsAfter a follow-up of 13–35 months (22.29 ± 5.80), compared with pre-operation, the flexion (132.14 ± 3.23° vs 123.21 ± 7.75°, P = 0.003), extension (8.21 ± 4.21° vs 1.07 ± 3.50°, P = 0.003), and pronation of elbow (83.21 ± 4.21° vs 80.36 ± 4.14°, P = 0.011) improved significantly in all patients. Furthermore, the carrying angle was recovered to the normal level (5–15°) in all of these patients (18.57 ± 5.69° vs 8.21 ± 2.49°, P = 0.001). MEPS score was significantly increased postoperatively (96.79 ± 2.49 vs. 90.71 ± 1.82, P = 0.000), with the good outcome in CRHD patients.ConclusionThe results of our study suggested that this double osteotomy on the proximal ulna might be an effective method for the treatment of CRHD.Level of EvidenceLevel IV, Therapeutic Study.     

陕西省黄鼠的遗传学特征分析

目的明确分布于陕西省的黄鼠的遗传学特征。方法测定COI、Cyt-b基因序列,与内蒙古科右中旗、正镶白旗达乌尔黄鼠、宁夏海原县阿拉善黄鼠同类基因序列进行比对,分析遗传距离,构建系统发育NJ树。结果陕西省定边县黄鼠COI基因序列与宁夏阿拉善黄鼠的遗传距离≤0.5%,与内蒙达乌尔黄鼠遗传距离在7.9%~9.3%之间,Cyt-b基因序列与宁夏阿拉善黄鼠的遗传距离为≤2.2%,与内蒙达乌尔黄鼠遗传距离在8.9%~11.2%之间。基于COI和Cyt-b基因的NJ系统树可见所有样本序列形成两个高支持度的单一分支,陕西定边县黄鼠与宁夏阿拉善黄鼠聚为一类,两者与内蒙达乌尔黄鼠形成两个独立分支,基于COI基因的NJ系统树显示陕西各地样本聚为一类。结论陕西省的黄鼠应为阿拉善黄鼠。     

陕西地区肝衰竭病因构成及变迁特点分析

目的 探讨陕西地区肝衰竭的病因构成及变迁特点。方法 回顾性收集2008年1月-2017年12月在西安交通大学第一附属医院住院的来自陕西省的975例肝衰竭患者的临床资料并进行分析。根据肝衰竭临床类型,分为急性肝衰竭(ALF)(n=115)、亚急性肝衰竭(SALF)(n=165)及慢加急性肝衰竭(ACLF)(n=695)3组。计量资料多组间比较采用单因素方差分析,两组间比较采用t检验;计数资料组间比较采用χ^2检验。结果 ALF的首要病因为药物(25.22%,29/115),其次为HBV感染(21.74%,25/115);SALF的首要病因为HBV感染(35.15%,58/165),其次为药物(27.27%,45/165);ACLF的首要病因为HBV感染(87.19%,606/695),其次为酒精(3.45%,24/695)。HBV感染、酒精性及药物性肝衰竭患者的年龄分布区间主要以20~60岁(595/689)、30~40岁(22/32)及30~70岁(67/89)为主。近5年HBV感染相关的肝衰竭比例较前5年显著下降(61.52% vs 81.33%,χ^2=45.87,P<0.001);药物性及酒精性肝衰竭的发病率较前5年显著升高(药物:13.14% vs 4.44%,χ^2=22.10,P<0.001;酒精:4.76% vs 1.56%,χ^2=7.85,P=0.005)。进一步分析发现近5年HBV相关肝衰竭发病年龄显著高于前5年患者发病年龄[(45.3±13.0)岁 vs (42.5±12.9)岁,t=-2.567,P=0.011]。结论 慢性HBV感染的管理仍然是控制肝衰竭的重要环节,同时需加强药物性及酒精性肝病的防治,高龄肝衰竭患者的救治需重视。