玉树地震后罹患创伤后应激障碍、焦虑症和抑郁症调查

目的:调查玉树地震后不同人群创伤后应激障碍(PTSD)、焦虑症、抑郁症的发生情况。方法:抽取震后灾区人群、其非灾区的亲属人群、灾区救援人群及非灾区人群为对象,每一人群进行随机分成两组,第1组每周进行1次集体心理干预;第2组每周进行3次集体心理干预。采用PTSD检查量表平民版(PCL-C)、焦虑自评量表(SAS)、抑郁自评量表(SDS)对不同人群在3个月、6个月进行问卷调查。结果:各人群在干预3个月和6个月均检出PTSD、焦虑症、抑郁症。各人群中第2组干预6个月时PTSD、焦虑症、抑郁症检出率明显低于干预3个月时(P均0.05)。结论:震后不同人群均存有PTSD、焦虑症、抑郁症发生;随着时间推移及积极干预可明显降低其发生。     

Oxidative stress increased hepatotoxicity induced by nano‐titanium dioxide in BRL‐3A cells and Sprague–Dawley rats

Extensive studies have shown that titanium dioxide (TiO₂) nanomaterials (NMs) can cause toxicity in vitro and in vivo under normal conditions. However, an adverse effect induced by nano‐TiO₂ in many diseased conditions, typically characterized by oxidative stress (OS), remains unknown. We investigated the toxicity of nano‐TiO₂ in rat liver cells (BRL‐3A) and Sprague–Dawley (SD) rat livers under OS conditions, which were generated using hydrogen peroxide (H₂O₂) in vitro and alloxan in vivo, respectively. In vitro results showed that cell death ratios after nano‐TiO₂ exposure were significantly enhanced (up to 2.62‐fold) in BRL‐3A cells under OS conditions, compared with normal controls. Significant interactions between OS conditions and nano‐TiO₂ resulted in the rapid G0/G1 to S phase transition and G2/M arrest, which were opposite to G0/G1 phase arrest in cells after NMs exposure only. In vivo results showed that obvious pathological changes in rat livers and the increased activities of four enzymes (i.e. aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase and alkaline phosphatase) owing to liver damage after nano‐TiO₂ exposure under OS conditions, compared with their healthy controls. In addition, compared with increased hepatotoxicity after nano‐TiO₂ exposure, micro‐TiO₂ showed no adverse effects to cells and rat livers under OS conditions. Our results suggested that OS conditions synergistically increase nano‐TiO₂ induced toxicity in vitro and in vivo, indicating that the evaluation of nanotoxicity under OS conditions is essentially needed prior to various applications of NMs in foods, cosmetics and potential treatment of diseases. Copyright © 2013 John Wiley & Sons, Ltd.     

肝动脉化疗栓塞联合索拉非尼治疗中晚期肝细胞癌近期疗效的Meta分析

目的 评估肝动脉化疗栓塞(TACE)联合索拉非尼与单独肝动脉化疗栓塞两种治疗方案对中晚期肝癌的疗效.方法 计算机检索中国知网、万方、Medline、Embase、Cochrane library数据库,其他途径辅助查找发表的肝动脉化疗栓塞联合索拉非尼治疗中晚期肝癌的的文献.统计指标包括:1年生存率、治疗有效率(RR)、疾病控制率(DCR)、用药前后VEGF变化率、不良事件发生率(消化道症状、手足综合征、高血压),将统计结果分别纳入TACE联合索拉非尼组(T+S组)和TACE组(T组),通过Reviews 5.2软件进行数据分析.结果 纳入随机对照研究共6篇(360例),男∶女=2.96∶1,T+S组269例,T组91例.1年生存率比较有统计学意义[OR=4.06,95％CI:(1.62,10.20),P＜0.05];治疗有效率比较有统计学意义[OR=2.11,95％CI:(1.30,3.44),P＜0.05)];疾病控制率有统计学意义[OR=4.52,95％CI:(2.69,7.58),P＜0.05];用药前VEGF变化率无统计学意义[WMD=0.00,95％CI:(-0.37,0.37),P=1.00],用药后VEGF变化率有统计学意义[WMD=-1.23,95％CI:(-1.64,-0.82),P＜0.05)];用药前后T+S组VEGF变化率有统计学意义[WMD=0.96,95％CI:(0.56,1.36),P＜0.05],用药前后T组VEGF变化率无统计学意义[WMD=-0.23,95％CI:(-0.61,0.14),P＞0.05];消化道症状发生率无统计学意义[OR=1.57,95％CI:(0.81,3.03),P＞0.05];手足综合征发生率有统计学意义[OR=14.83,95％CI:(3.84,57.25),P＜0.05];高血压发生率有统计学意义[OR=3.28,95％CI:(1.22,8.81),P＜0.05].结论 肝动脉化疗栓塞联合索拉非尼组较单纯肝动脉化疗栓塞组能够提高患者1年生存率、治疗有效率和疾病控制率,降低VEGF水平,但手足综合征及高血压的发病率较高.     

Differential Expression and Significance of Endoplasmic Reticulum Golgi Intermediate Compartment 1 in Precancerous Gastric Lesions and Gastric Cancer

Background

We investigated the expression of endoplasmic reticulum Golgi intermediate compartment 1 (ERGIC1) in precancerous gastric lesions and gastric cancer and the function of ERGIC in human gastric cancer cell lines.

腹腔镜与开腹手术治疗结直肠癌的近期疗效观察

目的:对比分析腹腔镜与开腹手术治疗结直肠癌的近期临床疗效。方法:回顾分析2012年1月至2013年1月收治的91例结直肠癌患者的临床资料,根据住院号将患者分为两组,45例行开腹手术(开腹组),46例行腹腔镜手术(腹腔镜组),对比两组患者切口长度、手术时间、术中出血量、术后住院时间、术后切口感染率、术后止痛药使用人次、排气时间及淋巴结清扫数量等。采用SPSS 19.0统计软件进行统计分析。结果:腹腔镜组切口长度、术中出血量、手术时间、术后住院时间及术后止痛药应用人次优于开腹组,差异有统计学意义(P<0.05)。淋巴结清扫数量、排气时间、切口感染率两组相比差异无统计学意义(P>0.05)。结论:相较传统开腹手术,腹腔镜结直肠癌手术是安全、可行的,可取得与开腹手术相当的淋巴结清扫范围,且具有患者创伤小、术后疼痛轻等优点,但其远期效果尚需进一步研究。     

Prognostic impact of lncRNA-ATB expression in malignant solid tumors: A meta-analysis

PurposeNumerous studies have reported the prognostic role of lncRNA-ATB high expression in solid tumours, but its prognostic effect is still uncertain. Therefore, the purpose of this meta-analysis was to further comprehensively verify the prognostic role of the lncRNA-ATB high expression in solid tumours.MethodsA literature search was performed using the electronic platforms to obtain relevant research studies published up to 31 May 2019. Confidence intervals of research endpoints in each study were extracted and merged. All data analysis was performed using Stata12.0 software.ResultsA total of 2120 patients with solid cancers in 14 studies were enrolled in our meta-analysis eventually. The analysis results revealed that high expression of lncRNA-ATB was related to lower OS (HR:1.46, P < 0.001), shorter DFS(HR:1.73, P < 0.001), and earlier RFS (HR:2.67, P < 0.001). Besides, the high expression of lncRNA-ATB has a considerable risk of lymph node metastasis (OR:2.13, P = 0.017)and perineural invasion (OR:1.58, P = 0.018).ConclusionsMeta-analysis showed that the high lncRNA-ATB expression was a poor prognostic marker in multiple cancer types. The high expression of lncRNA-ATB symbolizes the high risk of lymph node metastasis and perineural invasion in cancer patients.     

CACNA1C haploinsufficiency accounts for the common features of interstitial 12p13.33 deletion carriers

We identified a de novo 44.7 Kb interstitial 12p13.33 micro-deletion that involves solely the first exon of the CACNA1C (MIM 114205), using microarray-based comparative genomic hybridization (aCGH). The associated main phenotype is characterized by expressive language impairment, tremors, fine motor-skills delay, muscular hypotonia, and joint laxity. A careful comparison between the clinical and genomic characteristics between our proband and 20 previously reported patients, led us to propose CACNA1C haploinsufficiency as the main cause of both expressive language delay and motor-skills impairment. Pathogenic variants of CACNA1C have been associated to a plethora of clinical phenotypes, such as Timothy syndrome (TS, OMIM 601005), Brugada syndrome (BRGDA3, OMIM 611875) and a variety of neuropsychiatric disorders (bipolar disorder, major depression, schizophrenia, autism spectrum disorder, psychotic manifestations). In this report we describe a 12p13.33 micro-deletion involving one coding gene only, in contrast with previous studies that mostly concluded that a multi-genes deletion in the 12p13.33 sub-telomeric region is responsible of the minimum clinical phenotype of patients with 12p13.33 monosomy. Certainly, larger deletions spanning multiple Mb in 12p13.33 are responsible for more severe phenotypes, associated to a variable degree of dysmorphic features.     

电刺激联合神经营养素3可促进脊髓损伤大鼠内源性神经干细胞的增殖和分化

文题释义： 神经营养素3：是神经生长因子基因家族的成员,可促进多种中枢和外周神经元的存活和分化,调节神经元突触活动,并对神经系统发育和成熟起重要作用。神经营养素3在损伤条件下对神经元具有保护作用,因而在治疗神经系统疾病和神经损伤中有临床应用前景。 内源性神经干细胞：正常机体中,神经干细胞一般处于静息状态,在特定的生理或病理刺激下被激活,其中侧脑室外侧壁的室下带和海马齿状回的颗粒下带是产生神经干细胞最为活跃的区域,神经系统损伤后,在多种细胞因子、调控基因的调节下发生增殖、迁移和分化等。 背景：由于外源性神经干细胞的获取有限,且容易产生免疫排斥以及伦理问题等严重制约其向临床转化,因此如何激活内源性神经干细胞并促进其生长增殖、分化,成为近期科研工作者究的热点。 目的：探讨电刺激联合神经营养素3对大鼠脊髓损伤后内源性神经干细胞增殖及向神经元分化的作用。 方法：将96只SD大鼠随机分为假手术组、脊髓损伤组、电刺激组、电刺激+神经营养素3组,每组24只。假手术组仅暴露脊髓,其他3组大鼠应用改良Allen法建立脊髓损伤模型,造模后给予相应措施进行干预。造模后7,14,21,28 d时,以BBB评分评价大鼠后肢运动功能,电生理学检查运动诱发电位潜伏期;造模后28 d取材,进行苏木精-伊红染色观察脊髓病理变化,免疫组化染色观察内源性神经干细胞的增殖和分化情况。实验方案经兰州大学第二医院医学伦理委员会批准。 结果与结论：①与假手术组相比,脊髓损伤组大鼠的BBB评分明显降低(P < 0.01),脊髓组织可见大量炎症细胞浸润,并存在多个空洞;与脊髓损伤组相比,电刺激组、电刺激+神经营养素3组大鼠后肢功能开始逐渐恢复,电刺激+神经营养素3组BBB评分明显高于电刺激组(P < 0.05),上述病理损伤变化明显改善;②脊髓损伤组7,14 d及电刺激组大鼠7 d时双后肢运动诱发电位潜伏期均未测出,电刺激组、电刺激+神经营养素3组21,28 d时运动诱发电位潜伏期较模型组缩短(P < 0.05),电刺激+神经营养素3组潜伏期缩短更显著    (P < 0.05);③BrdU和Nestin阳性细胞数、微管相关蛋白2的表达：电刺激+神经营养素3组>电刺激组>脊髓损伤组;胶质纤维酸性蛋白的表达：脊髓损伤组>电刺激组>电刺激+神经营养素3组。结果表明脊髓损伤大鼠经电刺激及神经营养素3干预后,促进内源性神经干细胞增殖和向神经元分化,病理损伤明显减轻,后肢运动功能显著改善。 ORCID: 0000-0002-6353-8874(张培根) 中国组织工程研究杂志出版内容重点：干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程     

The fight against gastric cancer – the IARC Working Group report

Gastric cancer is the third cause of cancer death worldwide, and Helicobacter pylori infection causes almost 90% of non-cardia cancers, the predominant type. H. pylori infection is treatable, and in clinical trials there is evidence of a 30–40% reduction in incidence of gastric cancer among treated subjects. However, with a few exceptions, there are no public health programmes for gastric cancer prevention. In December 2013, the International Agency for Research on Cancer (IARC), organized a Working Group of international experts to discuss and make recommendations for gastric cancer control. The Working Group considered that the enormous burden of disease, which is not expected to decline in the coming decades, requires decisive public health action to include gastric cancer in cancer control programmes. Interventions should be tailored to the local conditions and consider population-based screening and eradication of H. pylori, in the context of evaluation of feasibility, efficacy and adverse consequences.