Functional analysis of LAT3 in prostate cancer: Its downstream target and relationship with androgen receptor

L-type amino acid transporter 3 (LAT3, SLC43A1) is abundantly expressed in prostate cancer (PC) and is thought to play an essential role in PC progression through the cellular uptake of essential amino acids. Here, we analyzed the expression, function, and downstream target of LAT3 in PC. LAT3 was highly expressed in PC cells expressing androgen receptor (AR), and its expression was increased by dihydrotestosterone treatment and decreased by bicalutamide treatment. In chromatin immunoprecipitation sequencing of AR, binding of AR to the SLC43A1 region was increased by dihydrotestosterone stimulation. Knockdown of LAT3 inhibited cell proliferation, migration, and invasion, and the phosphorylation of p70S6K and 4EBP-1. Separase (ESPL1) was identified as a downstream target of LAT3 by RNA sequencing analysis. In addition, immunostaining of prostatectomy specimens was performed. In the multivariate analysis, high expression of LAT3 was an independent prognostic factor for recurrence-free survival (hazard ratio: 3.24; P = .0018). High LAT3 expression was correlated with the pathological T stage and a high International Society of Urological Pathology grade. In summary, our results suggest that LAT3 plays an important role in the progression of PC.     

黄芪注射液联合丹参注射液对冠心病心力衰竭的临床疗效分析

[目的]分析黄芪注射液联合丹参注射液治疗冠心病心力衰竭患者的临床疗效。[方法]将94例冠心病心力衰竭患者随机分为治疗组与对照组,每组47例,两组均给予西医常规治疗,治疗组在常规治疗基础上予黄芪注射液联合丹参注射液兑入5%葡萄糖注射液250ml静滴。比较两组的治疗效果和治疗前后的心功能分级。[结果]对照组的治疗有效率为76.59%(36/47),观察组的治疗有效率为91.49%(43/47)。观察组高于对照组,且卡方检验表明,两组患者在治愈率差异有统计学意义(P﹤0.05)。治疗后患者的心功能出现较大改善。治疗前后的心功能间的差异有统计学意义(P﹤0.05)。[结论]黄芪注射液联合丹参注射液治疗冠心病心力衰竭患者,具有良好的临床治疗效果,有利于提高患者生活质量,值得在临床实践中推广应用。     

新疆口岸朝觐人群性传播疾病检测结果分析

目的了解新疆口岸朝觐人员性传播疾病的流行趋势和传播途径,为进一步预防控制性传播疾病提供科学依据。方法在新疆口岸,对由新疆民族宗教委员会组织的朝觐人员采用酶联免疫吸附实验(ELISA)和血清反应素试验(RPR)法进行艾滋病病毒(HIV)和梅毒检测。结果 2001—2009年,新疆各口岸共对18877名朝觐人员进行体检,检出梅毒感染者192例,检出率为1.02%;HIV-Ab阳性9例,检出率为0.05%。结论加强朝觐人群传染病监测工作,了解性传播疾病感染现状和传播途径,制定有效防控对策,降低发病率,对控制国际旅行者传染病传播非常重要。     

Villin 1 is a predictive factor for the recurrence of high serum alpha-fetoprotein-associated hepatocellular carcinoma after hepatectomy

The prognostic assessment of patients with hepatocellular carcinoma (HCC) after resection is an important clinical issue. The present study investigated those genes associated with high serum alpha-fetoprotein (AFP), and their clinical significance, including prognosis and recurrence after hepatectomy. Based on gene expression analysis of 110 training HCC cases, 20 genes whose mRNA expression levels were significantly upregulated and 50 genes that were downregulated correlated with high serum AFP-associated HCC patients. Gene expression profiles of Villin1 (Vil1) were obtained in high serum AFP-associated HCC tumor tissues. In the present analysis, only VIL1 was significantly correlated with the recurrence of HCC. The results were validated independently using Taqman gene expression assays and immunostaining analysis. Results showed that the upregulation of VIL1 mRNA was also correlated with high serum PIVKAII, vascular invasion (P < 0.05), poor differentiation, an advanced cancer stage (P < 0.01) and recurrence-free survival (P = 0.017). The upregulation of VIL1 mRNA was observed more frequently in the early recurrence patients as compared to the late recurrence patients. Cox regression univariate and multivariate analyses indicated that high serum AFP levels (overall survival, HR 1.675, P = 0.002; FRS, HR 1.359, P = 0.039) and Vil1 protein expression (overall survival, HR 0.253, P = 0.009; FRS, HR 0.401, P = 0.041) were independent, unfavorable prognostic factors for overall and recurrence-free survival of patients. We demonstrated that the VIL1 gene is a potential candidate molecular marker for high serum AFP-associated HCC and a predictive candidate for the postoperative recurrence and poorer prognosis of HCC.     

新疆维吾尔族人群胃癌组织中HuR蛋白的表达及其临床意义

目的:检测维吾尔族人群人类抗原R (human antigenR,HuR)蛋白在正常胃黏膜和胃癌组织中的表达,分析其与胃癌临床病理因素的关系.方法:从喀什地区第一人民医院收集胃癌组织蜡块标本30例和对应癌旁组织蜡块标本23例,采用组织芯片和免疫组化SP法检测HuR在胃癌和癌旁组织中的表达;电化学发光法检测胃癌患者血清中AFP、CEA、CA199、SCC的含量;分析HuR表达与胃癌患者临床病理参数及肿瘤标志物表达水平的关系.结果:HuR在胃癌组织细胞的胞质和胞核中均有表达,胞核中HuR在胃癌组织中的表达阳性率为83.33％,显著高于癌旁组织的52.17％ (P＜0.05),但其表达水平与胃癌临床病理分期无相关性;胞质中HuR在胃癌组织中表达阳性率为70％,显著高于癌旁组织的34.78％(P＜0.05),其表达水平与淋巴结转移和临床分期相关(P＜0.05),并且与肿瘤标志物CA199相关(P＜0.05).结论:在维吾尔族人群胃癌中,HuR在胃癌细胞胞核和胞质中的表达均显著高于癌旁组织;且胞质中HuR表达与淋巴结转移、临床分期以及标志物CA199密切相关.     

回国劳务人员输入性疟疾疫情监测分析

目的 了解回国劳务人员疟疾病例输入情况,为制定防控措施提供科学依据.方法 对回国劳务人员不明原因发热者自愿到新疆国际旅行卫生保健中心进行实验室检查和流行病学调查.结果 2009-2011年自愿检查17人中,共检出疟疾13例,恶性疟12例,间日疟1例.结论 出入境检验检疫机构应加强疟疾疫情监测及口岸检疫查验,及时掌握内外疫情信息,一旦发现疫情,及时采取有效的控制措施,防止输入性疟疾的播散.     

下颌可后退的前牙反（牙合）患者习惯性（牙合）位与下颌后退位头影测量研究

目的探讨下颌可后退的前牙反骀患者习惯性（牙合）位与下颌后退对刃位的颅面特征，及两种骀位头影测量的差异。方法将39名下颌可后退的前牙反（牙合）患者（男21，女18，年龄7．1～12．4岁）习惯性（牙合）位与下颌后退对刃位的17项头影测量项目分别与正常值比较并相互比较，采用单样本T检验和配对T检验。结果（1）习惯性（牙合）位时仅MP／SN，MP／FH，MP／PP和U1／SN与正常值比较无显著性差异；（2）下颌后退对刃位时SNB，U1／SN，ANS-Me，ANS-Me／N-Me，SL与正常值比较无显著性差异；（3）习惯性（牙合）位与下颌后退对刃位时SNA，U1／SN，L1／MP，ANS-Me／N-Me，SE间差异无显著性。结论前牙反（牙合）患者习惯性袷位与下颌后退对刃位头影测量均可能在某些方面夸大或掩饰骨性错（牙合），应对两者进行综合分析，并尽可能参考不受（牙合）位变化干扰的指标。     

临床综述撰写在儿科见习教学中的效果

目的:评价临床综述撰写在儿科临床见习教学中的教学效果。方法:通过对两组学生分别应用传统教学方法和在传统的教学方法基础上加临床综述撰写进行教学,观察学生平时学习表现,记录考试成绩。结果:两组学生考试测验成绩比较,综述撰写组优于非综述撰写组(P<0.01),临床综述撰写组学生在学习的主动性和积极性、建立正确的临床思维能力等方面均有提高。结论:临床综述撰写教学方法有助于提高学生的学习兴趣,对提高临床见习效果具有重要作用,值得广大医学教育工作者参考应用。     

新疆民营医院法定代表人职业背景及融资特点分析调查

通过对新疆46家民营医院法定代表人职业背景、融资情况及新疆民营医院管理模式的调研,发现新疆民营医院法定代表人存在年纪轻,少数民族少,新疆本地法定代表人占半;医疗专业为主,学历、专业素质、职业化程度较低;缺乏专业化培训等特点,新疆民营医院管理模式以院长负责制为主,融资以民间借贷为主,融资风险自担,融资目的单一,缺乏软实力投入。