Evaluation of cisplatin-hydrogel for improving localized antitumor efficacy in gastric cancer

Gastric cancer, one of the most common disease, has become a major public health problem worldwide. Cisplatin (DDP) has been a widely used drug for the treatment of cancer, also usually applied in gastric cancer in clinic. However, the side effects including toxicity and drug-resistance restricted the usage of DDP in clinic, so we prepared a DDP-complexed hydrogel (DDP-Gel) and investigated its efficacy in gastric cancer. For in vivo studies, MKN45-Luc cells were injected into BLAB/C node mice subcutaneously to establish gastric cancer with orthotopically grown tumors. Mice bearing tumors were treated with normal saline, DDP and DDP-Gel. Body weight and survival condition were observed and recorded. The treatment efficacy in vivo was detected by luciferase imaging and histological evaluation was performed by H&E staining of different organs. Additionally, normal ICR mice were treated with different doses of DDP/DDP-Gel to calculate their LD₅₀ in vivo. The results showed that DDP-Gel prolonged survival time and ameliorated body weight changes of mice bearing tumors. DDP-Gel exhibited higher efficacy to inhibit tumor growth and metastasis, compared to DDP. Besides, LD₅₀ of DDP-Gel was 166.0?mg/kg, 13.2 folds higher than DDP. As a conclusion, DDP-Gel showed a more effective and safer function than DDP in gastric cancer, which indicating that DDP-Gel might be a novel strategy for gastric cancer therapy.     

总责任护士主导的医护一体化护理模式在创伤骨科的应用

目的探讨总责任护士主导的医护一体化临床护理模式在创伤骨科的应用效果。 方法选择2016年7月至2017年6月在南京大学医学院附属鼓楼医院创伤骨科行手术治疗的骨折患者200例，按照入院先后顺序分为对照组90例(实施创伤骨科常规护理)和观察组110例(实施医护一体化工作模式，包括成立医护合作小组、实施总责任护士主导的医护一体化查房、个体化诊疗方案的共同决策、疼痛管理、早期出院计划与延续护理)。比较2组患者的术后护理效果和医护合作满意度。对数据行t检验和χ²检验。 结果总责任护士主导的医护一体化模式下，观察组患者术后72 h内数字评分法(NRS)评分为(4.09±1.64)分，疼痛干预有效率为77.57%，对照组术后72 h内NRS评分为(5.15±1.69)分，疼痛干预有效率为57.95%，2组比较差异均有统计学意义(P值均小于0.05)；观察组下肢深静脉血栓、泌尿系统感染、便秘的发生例数分别为2、1、3，对照组下肢深静脉血栓、泌尿系统感染、便秘的发生例数分别为9、7、11，两组比较差异均有统计学意义(χ²＝4.486、4.296、6.812，P＝0.027、0.036、0.009)。观察组术后康复开始时间为(21.48±6.41)h，术后住院时间为(11.08±2.19)d；对照组术后康复开始时间为(36.48±10.75)h，术后住院时间为(13.95±2.93)d，2组比较差异均有统计学意义(t＝11.670、－7.616，P值均小于0.05)。2组医护合作满意度结果显示，观察组患者信息的交流得分为(3.78±0.85)分，共同参与治疗或护理决策得分为(3.86±0.87)分，医师和护士的关系得分为(4.00±0.84)分，总分为(3.87±0.67)分；对照组患者信息的交流得分为(3.32±1.00)分，共同参与治疗或护理决策得分为(3.23±0.93)分，医师和护士的关系得分为(3.45±0.96)分，总分为(3.33±0.84)分，2组比较差异均有统计学意义(P值均小于0.05)。 结论总责任护士主导的医护一体化护理模式的应用，以亚专科为核心，重新整合医护资源，共同参与制订患者的诊疗护理方案，共同聚焦患者安全与质量，加强了医护间的配合，提高了医疗护理服务质量，提升医护合作满意度。     

先天性脊柱侧凸与青少年特发性脊柱侧凸矫形术中神经电生理监测对比分析

目的 :对比分析先天性脊柱侧凸(congenital scoliosis,CS)和青少年特发性脊柱侧凸(adolescence idiopathic scoliosis,AIS)患者脊柱后路矫形术中神经电生理监测(intraoperative neurophysiological monitoring,IONM)的结果,并评估术前合并椎管内异常对CS患者矫形术中IONM异常的影响。方法:回顾性分析2017年6月～2019年10月于我院行脊柱矫形手术的67例CS患者的临床资料,对照组为同时期内于我院行脊柱矫形手术的134例AIS患者,两组患者年龄(P=0.065)及术前侧凸Cobb角(P=0.077)均无统计学差异。比较两组凹凸侧体感诱发电位(somatosensory evoked potentials,SSEPs)的潜伏期和波幅、经颅电刺激运动诱发电位(transcranial electric motor evoked potentials,TCeMEPs)的波幅及异常SSEPs的发生率。将CS患者按术前是否合并椎管内异常分为两组,比较两组间出现异常SSEPs的发生率。结果:CS患者中67例(100%)术中均成功获得SSEPs监测结果,66例(98.5%)成功获得TCeMEPs监测结果;AIS患者均成功获得SSEPs基线及TCeMEPs基线。术后CS组3例、AIS组1例出现神经功能损害,两组SSEP和TCeMEPs监测的敏感度和特异度均无显著性差异(P0.05)。两组患者凹凸侧SSEPs-P37的潜伏期、N45的潜伏期和波幅、TCeMEPs波幅均无统计学差异(P0.05),两组异常SSEPs的发生率亦无显著性差异(55.2%vs 42.5%, P=0.094)。伴椎管内异常的CS患者凸侧SSEPs-N45的潜伏期与无椎管无异常的CS患者比较显著性延长(47.1±5.8ms vs 44.5±3.0ms,P=0.018),且异常SSEPs发生率明显升高(80.0%vs 44.7%,P=0.017)。结论:术前无明显神经损害的CS患者与AIS患者IONM的监测效果基本一致,但术前合并椎管内异常的CS患者凸侧SSEPs-N45的潜伏期明显延长,异常SSEPs的发生率明显升高。     

纳米碳与吲哚菁绿导航腹腔镜胃癌根治术淋巴结清扫的对比性研究

目的对比纳米碳与吲哚菁绿(ICG)在腹腔镜胃癌根治术淋巴结清扫方面的优劣性。方法回顾性分析2016年1月至2019年12月接受腹腔镜胃癌根治术的167例患者资料,根据所使用的示踪剂种类,分为纳米碳组130例、ICG组37例,应用GraphPad Prism 8.0统计软件进行分析,围术期指标及淋巴结清扫数目等计量资料以(±s)表示,采用独立t检验;术后并发症、二次手术率等计数指标比较采用χ²检验,P<0.05为差异有统计学意义。结果两种示踪剂对不同病理分期胃癌的淋巴结清扫效果差异无统计学意义。在各种胃癌根治术式中,淋巴结分拣均有助于提高淋巴结总检出数。纳米碳组较ICG组更有助于提高根治性全胃切除术第5站淋巴结的清扫数目(P=0.02)、根治性近端胃切除术第1站淋巴结的清扫数目(P=0.03)以及根治性远端胃淋巴结的总清扫数目(P=0.03)。在提高淋巴结检出率方面,两种示踪剂差异无统计学意义。结论纳米碳与吲哚菁绿在不同病理分期中的总体淋巴结清扫效果差异无统计学意义。无论使用何种示踪剂,均提倡淋巴结分拣。纳米碳较吲哚菁绿更有助于提高根治性全胃第5站淋巴结的清扫数、根治性近端胃第1站淋巴结的清扫数以及根治性远端胃淋巴结的总清扫数目。     

A nationwide post-marketing survey of knowledge,attitude and practice toward human papillomavirus vaccine in general population: Implications for vaccine roll-out in mainland China

BackgroundHuman papillomavirus (HPV) vaccine has been increasingly discussed in mainland China since its first approval in 2016. To date, nearly all studies assessing HPV vaccine perceptions and attitudes were implemented during pre-licensure period. Therefore, the nationwide post-marketing survey was conducted to update knowledge, attitudes and practice on HPV vaccine among general population in mainland China.MethodsParticipants aged 18–45 years living in mainland China were recruited in April 2019 by multi-stage non-randomized sampling. Sociodemographic factors, HPV and HPV vaccine related awareness, knowledge, attitudes, vaccine uptake and potential obstacles were assessed in questionnaires. Bivariate analysis and multivariate regression were used to identify disparity among subgroups with different sociodemographic characteristics.Results4,000 women (32.1 ± 7.81y) and 1,000 men (31.8 ± 7.96y) were included in final analysis. Less than one third of participants had heard of HPV (female: 31%; male: 22%) and HPV vaccine (female: 34%; male: 23%). Knowledge score was also unfavorable on HPV (female: 3 out of 13; male: 1.8 out of 13) and HPV vaccine (female: 3 out of 6; male: 2 out of 5). Only 3% females had been vaccinated three years after HPV licensure in China, although willingness to get vaccinated among those unvaccinated were high (mean willingness score ± SD: female: 3.3 ± 0.97; male: 3.0 ± 0.98). Industry of employment and household income were the major factors related to awareness and knowledge of vaccine, whereas HPV and HPV vaccine awareness were key influential factors for willingness. The main obstacles of vaccination were safety concerns, lack of knowledge, and high price of HPV vaccines.ConclusionsFindings highlight a lack of vaccine awareness, knowledge, and poor uptake in mainland China and underscore the necessity of health education campaigns. The identified priority groups, contents to be delivered and practical obstacles could furthermore provide insight into health education to reduce disparities and accelerate HPV vaccine roll-out in China.     

锌指蛋白KLF12抑制人子宫内膜间质细胞体外蜕膜化过程中胰岛素样生长因子结合蛋白-1表达

目的人子宫内膜间质细胞蜕膜化标志蛋白胰岛素样生长因子结合蛋白-1(insulin-like growth factor binding protein-1,IGFBP-1)参与调控月经周期、排卵、蜕膜化、胚胎种植以及胎儿生长等生理过程,本研究旨在探索锌指蛋白KLF12对人子宫内膜间质细胞体外蜕膜化过程中IGFBP-1表达的影响。方法制备Ad-Flag-KLF12重组腺病毒,通过荧光定量聚合酶链式反应(PCR)和酶联免疫吸附试验(ELISA)结合重组腺病毒介导的KLF12过表达实验,阐述人子宫内膜间质细胞体外蜕膜化过程中KLF12对IGFBP-1表达调控作用。结果成功获得滴度为2×1011ifu/ml的重组KLF12腺病毒,该腺病毒可在人子宫内膜间质细胞中高表达Flag-KLF12融合蛋白;体外分离培养的人子宫内膜间质细胞经8-Br-cAMP和醋酸甲羟孕酮(medroxy progesterone acetate,MPA)联合诱导蜕膜化后,KLF12的mRNA表达随着诱导时间延长逐渐降低,72h降低最明显,较未刺激降低约70%;过表达KLF12显著抑制8-Br-cAMP和MPA诱导的人子宫内膜间质细胞中IGFBP-1mRNA的表达,并以时间依赖的方式明显抑制IGFBP-1的分泌(P0.01);过表达KLF12明显抑制人子宫内膜间质细胞体外蜕膜化过程中IGFBP-1启动子转录活性。结论锌指蛋白KLF12抑制人子宫内膜间质细胞体外蜕膜化过程中IGFBP-1的表达与分泌。