Radiotheranostic Targeting Cancer Stem Cells in Human Colorectal Cancer Xenografts

Molecular Imaging and Biology - The aim of this study was to perform radiotheranostics with radioiodinated monoclonal antibodies (mAbs) for targeting cancer stem cells (CSCs) in human colorectal...     

联合经皮和经静脉超声造影对乳腺癌前哨淋巴结的诊断价值

目的探讨经皮超声造影联合经静脉超声造影在乳腺癌前哨淋巴结中的诊断价值。 方法选取2016年11月至2018年6月南京中医药大学附属医院乳腺外科收治的174例乳腺癌患者,所有患者均进行经皮超声造影前哨淋巴结定位,并进行常规超声和经静脉超声造影检查,以亚甲蓝染色和手术病理结果为标准,对常规超声与联合经皮和经静脉超声造影诊断前哨淋巴结的效能进行分析。 结果174例乳腺癌患者共计175个前哨淋巴结,亚甲蓝染色与经皮超声造影定位前哨淋巴结的检出率分别为99.4%和96.0%,差异无统计学意义（P=0.067）。病理结果显示,175个前哨淋巴结中56个发生转移,常规超声诊断前哨淋巴结转移的特异度为71.4%、敏感度为64.3%、准确性为69.1%,联合经皮和经静脉超声造影诊断前哨淋巴结转移的特异度为84.0%、敏感度为76.8%、准确性为81.7%,联合经皮和经静脉超声造影诊断前哨淋巴结转移的准确性高于常规超声检查,差异有统计学意义（χ²=7.46,P＜0.05）。根据手术病理特征将175个前哨淋巴结分为宏转移组38个、微转移组18个、未转移组119个。常规超声诊断前哨淋巴结宏转移组准确性为71.1%,微转移组准确性为50.0%,未转移组准确性为71.4%。联合经皮和经静脉超声造影诊断前哨淋巴结宏转移组准确性为86.8%,微转移组准确性为55.6%,未转移组准确性为84.0%。 结论经皮超声造影可在术前准确定位前哨淋巴结,联合经皮和经静脉超声造影对于乳腺癌前哨淋巴结转移具有较好的定性诊断价值。     

迷你临床演练评估方法在新护士第1年规范化培训中的应用

目的:观察迷你临床演练评估(Mini-CEX)方法提高毕业第1年新护士规范化培训的效果。方法:采用整群抽样法,以陆军军医大学新桥医院2017年入职的新护士91名为对照组,2018年入职的新护士120名为试验组。对照组采用常规培训方法。试验组在此基础上,将常规教学查房和操作训练改为每月1次Mini-CEX方法下的临床护理核心能力训练和临床护理操作技能培训,连续12次。采用配对样本t检验比较试验组第1次和第12次训练的Mini-CEX得分,采用独立样本t检验比较两组新护士理论和操作考核成绩。结果:试验组第12次的临床护理核心能力训练和临床护理操作技能训练的Mini-CEX得分分别为(6.27±0.46)、(6.73±1.10)分,均高于第1次得分,差异有统计学意义(t值分别为-8.48、-7.64;P<0.01);试验组新护士在1年规范化培训中,科室理论考核和操作考核成绩分别为(87.70±11.32)、(92.90±8.22)分,院级理论考核和操作考核成绩分别为(85.50±11.83)、(89.67±8.99)分,均高于对照组,差异有统计学意义(t值分别为-2.71、-2.09、-2.24、-3.22;P<0.05)。结论:Mini-CEX对提高毕业第1年新护士培训效果作用显著。     

Clinical implications of viral quasispecies heterogeneity in chronic hepatitis C

To determine the clinical significance of viral quasispecies heterogeneity, 59 patients with chronic hepatitis C were studied using single-stranded conformational polymorphism (SSCP) analysis of the HCV E2 hypervariable region 1 (HVR1); of these, 48 were subsequently treated with interferon-α. The SSCP method was validated using clones of known nucleotide sequence. HVR1 was amplified in 54 of 59 (92%) patients. The median number of SSCP bands per sample was 6 (range: 2–12). Increased quasispecies heterogeneity correlated with the estimated duration of HCV infection (P < 0.05), parenteral-acquired HCV infection (vs. sporadic, P < 0.05), serum HCV RNA levels (P < 0.05), and HCV genotype 1 infection (P < 0.05), but not with age, serum AST, ALT, or Knodell score. Patients who had complete and sustained response to interferon-α (n = 11) had lower pre-treatment quasispecies heterogeneity compared to patients who had complete response with relapse (n = 18, P < 0.05) or no complete response (n = 16, P < 0.01). However, multivariate analysis revealed that HCV viremia was a stronger predictor of response to interferon-α. These findings indicate that the estimated duration of HCV carriage, serum HCV RNA levels, and HCV type 1 are important determinants for the evolution of HCV quasispecies heterogeneity; and that increased HCV quasispecies heterogeneity is another marker associated with a poor subsequent response to interferon-α. © 1996 Wiley-Liss, Inc.     

儿童孔源性视网膜脱离发病特点、病因及手术方式的临床研究

目的 探讨儿童孔源性视网膜脱离(RRD)的发病特点、病因及手术方式.方法 收集首都医科大学附属北京同仁医院2004年1月至2018年12月的儿童RRD患者668例(737只眼)的病历资料进行研究.其中,男性532例(589只眼),女性136例(148只眼).年龄3～14岁,平均年龄(11.14±2.74)岁.检索并记录...     

中药炮制品检验中出现的不合格问题分析与思考

文章分析了目前中药炮制品在检验中出现的不合格方面,探讨质量管理应采取的措施,建立健全中药炮制品质量保证体系,加强质量管理和监督,提高中药炮制品质量标准,确保用药安全与疗效。     

肝癌患者口服甲磺酸仑伐替尼不良反应护理

本个案针对中国医学科学院北京协和医学院肿瘤医院深圳医院2020年2月14日收治的1例肝癌口服靶向药(甲磺酸仑伐替尼)引起肛周瘙痒和多处皮损的病例进行分析.患者带肛周皮损入院,与压疮区别后,判断为肝癌患者口服甲磺酸仑伐替尼所致药物不良反应,对症给予治疗与护理.伤口明显好转后,患者出院.此案为新发现的甲磺酸仑伐替尼说明书上...     

胫骨高位截骨术治疗膝内侧间室骨关节炎的疗效分析

目的 探讨内侧开放式胫骨高位截骨术治疗膝关节内侧骨关节炎的临床疗效.方法 选取2016年1月至2019年2月于暨南大学附属第一医院骨关节科诊断为膝内侧骨关节炎并行内侧开放式胫骨高位截骨术的患者56例(64膝).纳入标准:膝关节内侧间室骨关节炎;合并胫骨侧内翻畸形.排除标准:炎症性、感染性关节炎;多间室的关节退变;膝关节...     

Research on the influence of polar solvents on CsPbBr3 perovskite QDs

All-inorganic CsPbX₃ (X = Cl, Br, I) perovskite quantum dots (QDs) have become a kind of optoelectronic material with huge application prospects due to their excellent physical and optical properties. However, their poor structural stability to the external environment, especially polar solvents, seriously hinder further development in practical applications. Considering whether polar solvents have the same effects on perovskites QDs, few studies have been investigated in this area presently. In order to find out the effect of different polar solvents on all-inorganic perovskite QDs, in this work, we select 12 kinds of polar solvents of methanol, ethanol, isopropanol, 1-butanol, 1-pentanol, 1-octanol, N,N-dimethylformamide (DMF), tetramethylethylenediamine (TMEDA), ethyl acetate, n-butyl acetate, dibutyl phthalate and acetone for a specific analysis. The characterization of their morphology, optical and physicochemical properties shows that different polar solvents have different effects on all-inorganic perovskite QDs, but their effects are regular. Polar solvents act on the ligands preferentially, and the effects can be divided into: reducing the concentration of ligands; substituting ligands partially; completely destroying the surface ligands; polar solvents with the same functional group, as the polarity of the solvent increases, the impact on all-inorganic perovskite QDs is greater. We believe that this discovery has important implications for improving the stability of all-inorganic perovskite QDs.

All-inorganic CsPbX₃ (X = Cl, Br, I) perovskite quantum dots (QDs) have become a kind of optoelectronic material with huge application prospects due to their excellent physical and optical properties.     

双绒毛膜三羊膜囊三胎妊娠射频消融减胎病例临床结局分析

目的:探讨射频消融术（radiofrequency ablation, RFA）对双绒毛膜三羊膜囊（dichorionic triamniotic,DCTA）三胎选择性减胎的安全性以及影响妊娠结局的因素。方法:采用回顾性队列研究方法收集2016年1月1日至2020年1月1日期间在南方科技大学第一附属医院深圳市人民医院产...