目的 通过对43种融合基因在儿童白血病中的结果分析,探讨融合基因阳性的儿童急性B淋巴细胞白血病(acute B-lymphoblastic leukemia,B-ALL)的免疫表型特征。方法 应用实时荧光探针PCR法对2016年10月—2018年12月在深圳市儿童医院就诊的初发或复发B-ALL患儿进行融合基因检测,采用多参数流式细胞术(flow cytometry,FCM)对B-ALL患者进行免疫表型检测。结果 120例B-ALL患儿融合基因筛选总阳性率为37.5%(45/127),包括TEL/AML1 27例、E2 A/PBX1 7例、BCR/ABL1 6例、MLL 4例、TLS/ERG 1例;不同年龄段白血病融合基因阳性率差异有统计学意义(P<0.01),性别分布差异无统计学意义(P>0.05)。各融合基因阳性组CD19阳性率为100%,TEL/AML1阳性表达患者普通-B-ALL表型占比最高(77.8%),干/祖细胞抗原CD34的阳性率为81.5%;E2 A/PBX1阳性表达患者以前-B-ALL表型为主,不表达已知的T系及髓系抗原;各融合基因阳性组及阴性组患儿髓系抗原阳性率比较差异有统计学意义(P<0.01),以BCR/ABL1基因表达组阳性率最高(100%)。结论 5种融合基因在患者年龄构成及免疫表型中具有一定的分布特点;B-ALL特征性免疫表型的改变可用于融合基因表达的预测,提高融合基因结果判读的准确率。

Objective To investigate the immunophenotype features of children with acute B-lymphoblastic leukemia(B-ALL) combined with fusion gene expressing after to analyze the results of the 43 fusion genes. Methods Real-time fluorescent probe PCR assay was used for the detection of fusion genes in 120 cases of children from Shenzhen Children's Hospital with B-ALL newly or recurrently diagnosed from Oct 2016 to Dec 2018. Multi-parameter flow cytometry(FCM) was used for the detection of the immunophenotype in children with B-ALL. Results Of all the 120 cases, the fusion genes were detected at positive rate of 37.5%(45/120), included TEL/AML1 27 cases, E2 A/PBX1 7 cases, BCR/ABL1 6 cases, MLL 4 cases, TLS/ERG 1 cases. The positive rate of leukemia fusion gene had statistically difference among fusion genes positive groups based on age(P<0.01). There was no statistically difference in the gender distribution(P>0.05). The expressing of CD19 was at positive rate of 100% in all of the groups. The rate of the common-B-ALL was the highest B-ALL subtype in the TEL/AML1 positive groups(77.8%). The stem /progenitor associated antigen CD34 was at positive rate of 81.5%. The pre-B-ALL was the main subtype in the E2 A/PBX1 group, which was no expression of the known T-ALL associated antigen MyAg antigen. There was statistically difference in the positive rate of MyAg expression among all of the groups(P<0.01), with the highest rate in the BCR/ABL1 group(100%). Conclusion There were certain distribution features in age composition and immunophenotype of children with B-ALL carrying five kinds of common fusion genes. The characteristic changes of the immunophenotype of B-ALL may be used to predict the expression of fusion genes and improve the accuracy of fusion genes by the supplementary role of immunophenotype analysis.

目的 评价SAMe-TT₂R₂评分对非瓣膜性房颤使用华法林的患者中的抗凝疗效的评估作用,探讨SAMe-TT₂R₂评分与缺血性卒中事件、出血事件的相关性。方法 以石河子大学医学院第一附属医院2018年1月—2019年1月住院治疗,确诊为非瓣膜性房颤并口服华法林抗凝的患者作为观察对象,进行为期10月的随访。通过患者的国际标准化比值(INR),计算患者的抗凝治疗范围内时间百分比(Time in Therapeutic Range, TTR),并对所有患者进行SAMe-TT₂R₂评分。运用χ²检验、Spearman秩相关、ROC曲线分析评估SAMe-TT₂R₂评分对患者抗凝疗效的预测能力。随访期内收集缺血性卒中和出血事件的发生情况,分析上述事件与SAMe-TT₂R₂评分的相关性。结果 190例患者平均TTR为(46.76±21.99)％,SAMe-TT₂R₂分数与患者的TTR呈负相关(P=0.001),ROC曲线下面积为0.661,P=0.001,约登指数0.203对应的临界值取整数为4分,敏感度和特异度分别为72.6％和47.7％,提示SAMe-TT₂R₂对预测TTR<65％有一定的价值。随访期间共有5例患者发生缺血性卒中事件,25例患者发生不同程度出血事件,11例患者发生全因死亡事件,上述事件在各个SAMe-TT₂R₂分值的发生分布差异无统计学意义(P＞0.05)。结论 在非瓣膜性房颤并使用华法林抗凝治疗的患者中,SAMe-TT₂R₂评分对使用华法林抗凝治疗患者的抗凝有效性具有一定的预测能力,可将SAMe-TT₂R₂评分作为预测华法林抗凝疗效的预测的指标。

Objective To evaluate the anticoagulant effect of SAMe-TT₂R₂ in patients with non-valvular atrial fibrillation treated with warfarin, and to explore the correlation between SAMe-TT₂R₂ and ischemic stroke events and bleeding events. Methods Patients who were diagnosed as non-valvular atrial fibrillation and with oral warfarin were enrolled in the First Affiliated Hospital of Shihezi University School of Medical College in January 2018-January 2019, and for 10 months of follow-up. Collecting patients' International normalization ratio(INR), calculating the Time in therapeutic range(TTR), and the SAMe-TT2 R2 score. And χ² test, Spearman rank correlation and ROC curve analysis were used to evaluate the predictive ability of SAMe-TT2 R2 score on anticoagulant efficacy in patients. Follow-up was conducted to investigate the incidence of ischemic stroke or hemorrhagic events and explore the relationship with the SAMe-TT2 R2 score. Results The mean TTR of 190 patients was 46.76%±21.99%, and the score of SAMe-TT_{2 R2} was negatively correlated with the TTR of the patients(P=0.001), the area under the ROC curve was 0.661, P=0.001, The critical value corresponding was 4 points, and the sensitivity and specificity were 72.6% and 47.7%, respectively suggesting that SAMe-TT₂R₂ had certain value in predicting TTR< 65%. During follow-up, a total of 5 patients had ischemic stroke, 25 patients had different degrees of bleeding, and 11 patients had all-cause death, different SAMe-TT₂R₂ scores showed no statistical significance(P>0.05). Conclusion In patients with non-valvular atrial fibrillation treated with warfarin anticoagulant, the SAMe-TT₂R₂ score has a certain predictive ability for the anticoagulant efficacy of patients treated with warfarin anticoagulant, and the SAMe-TT₂R₂ score could be used as an indicator for predicting the anticoagulant efficacy of warfarin.

目的 研究结肠癌组织中转录因子KLF8的表达及下调KLF8的表达对结肠癌细胞的影响。方法 收集结肠癌组织和癌旁正常组织,检测KLF8的蛋白含量;培养结肠癌Lovo细胞株,转染KLF8 siRNA后检测细胞侵袭、迁移以及上皮-间质转化(EMT)。结果 结肠癌组织中KLF8的蛋白含量高于癌旁正常组织;转染KLF8 siRNA的结肠癌细胞组迁移距离低于阴性对照组,且侵袭至transwell微孔膜外侧面的细胞数少于阴性对照组;转染KLF8 siRNA的结肠癌细胞组内E-cadherin的表达升高,Vimentin、N-cadherin的蛋白含量低于阴性对照组。结论 结肠癌组织中KLF8的表达量升高,下调结肠癌细胞中KLF8的表达可抑制结肠癌细胞侵袭、迁移及上皮-间质转化过程。

Objective To study the expression of transcription factor KLF8 in colorectal cancer tissue and its effect of downregulation KLF8 on colorectal cancer cell. Methods Collecting cancer tissues and adjacent normal color tissue and detecting the protein level of KLF8. Culturing the colorectal cancer Lovo cell lines and detecting cell invasion, cell migration and epithelial-mesenchymal transition after transfecting of KLF8 siRNA. Results KLF8 was highly expressed in colorectal cancer tissues compared with adjacent normal colon tissue. After transfection of KLF8 siRNA, the migration distance of colorectal cancer cell and the cell population transferred to the lateral surface of transwell microporous membrane were lower than those of negative control siRNA. E-cadherin of KLF8 siRNA group were higher than those of negative control siRNA group. Vimentin and N-cadherin were lower than those of negative control siRNA group. Conclusion The expression of KLF8 in colorectal cancer tissue is elevated;downregulation of KLF8 expression in colorectal cancer cell lines may inhibit cell invasion, cell migration and epithelial-mesenchymal transition processes.

目的 体外细胞实验检测吴茱萸碱对骨肉瘤HOS细胞株细胞周期及体外增殖能力的影响。方法 通过利用浓度为0、3、6、12 μmol/L吴茱萸碱处理骨肉瘤HOS细胞48 h后,Hoechst-33258荧光染色观察不同浓度吴茱萸碱处理后HOS细胞核的形态学变化。利用流式细胞术检测3 μmol/L的吴茱萸碱处理后骨肉瘤HOS细胞的细胞周期分布变化。结果 3、6、12 μmol/L的骨肉瘤吴茱萸碱处理细胞,细胞呈现凋亡核碎裂等典型变化,而且随药物剂量增加而更趋明显。呈剂量依赖性抑制其体外增殖能力。3 μmol/L吴茱萸碱处理骨肉瘤HOS细胞0、24、48、72 h,各组细胞周期变化如下:G0/G1期:对照组(51.12±2.13)%、24 h(19.17±1.02)%、48 h(16.94±1.67)%、72 h(11.05±1.25)%;S期:对照组(32.92±0.73)%、24 h(31.00±1.42)%、48 h(32.38±3.03)%、72 h(29.18±2.87)%;G2/M期:对照组(16.01±2.26)%、24 h(49.82±0.62)%、48 h(50.6767±2.80)%、72 h(59.56±1.97)%。结论 吴茱萸碱可诱导人骨肉瘤HOS细胞发生G2/M期阻滞,而S期变化不明显。说明吴茱萸碱可以抑制骨肉瘤细胞的增殖能力,并阻滞细胞周期于G2/M期。

Objective Using transcriptome sequencing and in vitro cell assay to detect the effect of evodiamine on cell cycle and proliferation in osteosarcoma HOS cell line. Methods HOS cells were treated with evodiamine at 0, 3, 6, and 12 μmol/L for 48 hours, Hoechst-33258 fluorescence staining was used to observe the morphological changes of HOS nuclei after treatment with different concentrations of evodiamine.The cell cycle distribution of HOS cells treated with 3 μmol/L evodiamine was detected by flow cytometry. Results 3,6,12 μmol/L osteosarcoma treated with evodiamine, the cells showed typical changes such as apoptotic nuclear fragmentation, and it became more obvious with the increase of drug dosage. Inhibition of proliferation in vitro in a dose-dependent manner.HOS cells were treated with 3 μmol/L evodiamine for 0, 24, 48, 72 h. The cell cycle changes of each group were as follows: G0/G1 phase: control group(51.12±2.13)%, 24 h(19.17±1.02)%, 48 h(16.94±1.67) %, 72 h(11.05±1.25)%;S phase: control group(32.92±0.73)%, 24 h(31.00±1.42)%, 48 h(32.38±3.03)%, 72 h(29.18±2.87)%;G2/M period: control group(16.01±2.26)%, 24 h(49.82±0.62)%, 48 h(50.6767±2.80)%, 72 h(59.56±1.97)%. Conclusion Analysis of the above results revealed that evodiamine can induce G2/M phase arrest in human osteosarcoma HOS cells, but the S phase changes are not obvious. It indicated that evodiamine would inhibit the proliferation of osteosarcoma cells and block the cell cycle in G2/M phase.

目的 基于防控要求,快速建立临时隔离病区,合理优化影像学检查,更好的加强病区的管理工作,控制新型肺炎、防止交叉感染。方法 基于我院现有条件、人员、检查设备,结合抗击SARS经验,合理调整病区布局,建立有效的就诊,分诊,转运机制,明确工作职责,优化检查流程,放射检查防控等。结果 自新型肺炎临时病区建立以来,无1例医护人员感染和院内交叉感染。结论 思想重视,认真落实分诊,就诊;转运措施得当,科学防控,一站式,一体化,快速有效的检查方式,快速建立临时隔离病区,防止交叉感染的发生。在防控COVID-19新型肺炎中可以发挥巨大作用。

Objective Based on prevention and control requirements, to establish temporary isolation of ward quickly, rationally optimize medical imaging examinations and strengthen the management of ward to control the novel pneumonia, and prevent cross infection. Methods Based on the existing materials conditions, personnels, and examination equipments of our hospital, combined with the experiences of fighting against SARS, we rationally adjust the layout of the ward, establish an effective consultation, triage, and transfer mechanism, clarify job responsibilities, optimize examination procedures, and take strict prevention and control measures of medical imaging examinations. Results Since the establishment of the COVID-19 temporary ward, there was no cases of medical staff infection and nosocomial infection. Conclusion Highly valued opinion, conscientiously implements triage-visit-transportation measures, scientific prevention and control, one-stop-integrated fast and effective examination procedures and quickly establishement of a temporary isolation ward have played a huge role in preventing and controlling COVID-19.

介绍我院应对新型冠状病毒感染防控工作的护理管理措施,包括发热病区的组建,护理应急队伍的建设,工作流程指引的修订和完善,院感防护措施的严格落实,后勤保障的严密管理等,并进行护理质量控制与持续改进,为其他医院的防控工作提供借鉴。

It introduces nursing management measures of novel coronavirus infection prevention and control in our hospital, including the establishment of fever ward, the construction of nursing emergency team, the revision and improvement of working process guidelines, the strict implementation of hospital sensory protection measures, tight management of logistical support, and quality control and continuous improvement of nursing. It offers experiences for other hospitals.

目的 探讨观察静吸复合麻醉与全凭静脉麻醉对中老年妇科腹腔镜手术的作用。方法 以2016年8月—2018年8月为时间段,选择我院收治的86例中老年妇科腹腔镜手术患者,将其随机分成对照组、实验组,各组43例患者。对照组采取静吸复合麻醉方式,实验组采取全凭静脉麻醉方式。对比观察两组患者的麻醉效果,比较手术中的血流动力学指标,另外统计不良反应及术后认知功能障碍。结果 实验组麻醉起效时间、睁眼时间及拔管时间比对照组短,不良反应发生率及认知功能障碍发生率低于对照组,二组比较差异有统计学意义(P<0.05);手术中心率、氧饱和度、收缩压与舒张压比较,组间差异无统计学意义(P>0.05)。结论 和静吸复合麻醉比较,全凭静脉麻醉在中老年妇科腹腔镜手术中的应用价值更高,建议推广。

目的 了解从化地区儿童人冠状病毒((human coronavirus,HCoV)流行情况和临床特点,观察人冠状病毒分型OC43(HCoV-OC43)基因分布特点,探讨从化地区小儿呼吸道感染HCoV-OC43分离株与国内的HCoV-OC43分离株的同源性与基因分型,探讨HCoV-OC43与小儿呼吸道感染疾病的关系,为预防和控制呼吸道疾病提供依据。方法 本研究从化地区2017年1月—2019年6月门诊就诊的6个月~14岁的儿童610例,采集鼻咽拭子标本,病毒检测阳性的患者,这些标本取自患有急性上呼吸道感染或下呼吸道感染疾病的患者,表现出呼吸道感染的症状,例如发热(体温> 37.5℃)、咽痛、流涕、鼻塞、咳嗽和咳痰等。采用荧光定量PCR方法,对HCoV-OC43病毒核酸进行分析和测序。采用直接免疫荧光法检测其他7种常见呼吸道病毒;包括:流感病毒 A、B型(influenza virus,IVA、B)、副流感病毒Ⅰ、Ⅱ、Ⅲ 型 (parainfluenza virus, PIVⅠ、Ⅱ和Ⅲ)、呼吸道合胞病毒(respiratory syncytial virus, RSV)、腺病毒(ad enovirus, ADV)共七种常见呼吸道病毒进行检测,通过HCoV-OC43和常见呼吸道病毒的病毒监测,找出从化地区呼吸道感染患儿HCoV-OC43的N蛋白编码基因的特征。结果 从化地区6月~14岁的呼吸道感染儿童610例,采集鼻咽拭子标本,病毒检测阳性的患者,分析了8种呼吸道病毒,重点分析HCoV-OC43的临床特点。从发病时间月份分布可以看出,人HCoV-OC43主要是在春季流行, HCoV-OC43全年均可检出,春季4月份和5月份检出率较高,冬季较低,但不同月份的检出率无差异。各种常见病毒的发病率,流感病毒A(IVA)111例(18.20%)、流感病毒B(IVB)61例(10.00%)、副流感病毒Ⅰ(PIVⅠ)42例(6.89%)、副流感病毒Ⅱ(PIVⅡ)34例(5.57%)、副流感病毒Ⅲ(PIVⅢ)77例(12.62%)、呼吸道合胞病毒(RSV)135例(22.14%)、腺病毒(ADV) 82例(13.45%),冠状病毒(HCoV-OC43)68例(11.14%)。呼吸道感染多为流感病毒(A+B)和副流感病毒(Ⅰ,Ⅱ,Ⅲ)共325例(53.28%),其次是合胞病毒感染135例(22.14%),腺病毒(ADV) 82例(13.45%),冠状病毒感染最低68例(11.14%)。建立荧光定量PCR方法检测HCoV-OC43 病毒分离及基因分型测序,阳性PCR 产物测序,与HCoV-OC43中N 蛋白基因序列进行比较分析,该地区冠状病毒具有临床多样性,与国内已发表的菌株HCoV-OC43相比具有很高的同源性。结论 人冠状病毒OC43的检出率与以前的报道相符,未发现新的传染性冠状病毒,冠状病毒HCoV-OC43的流行趋势稳定,所有呼吸道感染者均表现出正常的呼吸道感染症状。常见呼吸道病毒检测, 对临床早期诊断和合理用药具有重要意义。

目的 回顾分析我医院近9年产妇行剖宫产术治疗的患者的住院病历资料,探索术后出现切口脂肪液化的危险因素。方法 选取我医院2011年1月—2019年8月期间行剖宫产术治疗的产妇患者1 018例,分成术后切口脂肪液化组和甲级愈合组,比较2组间的差异,分析其相关危险因素。结果 1 018例产妇患者中出现切口脂肪液化的为34例,发生率为3.34%(34/1 018);单因素分析结果显示,糖尿病、体质指数超重、7 cm以上切口长度是术后出现切口脂肪液化的相关因素,差异有统计学意义;多因素Logistic回归分析结果显示,糖尿病、体质指数超重、7 cm以上切口长度是术后出现切口脂肪液化的独立危险因素。结论 产妇患者行剖宫产术治疗出现切口脂肪液化率较高;围手术期控制患者血糖,以及孕期控制体质指数、缩小剖宫产手术切口长度可能有效地减少切口脂肪液化发生率。

Objective To retrospectively analyze the medical records of patients undergoing cesarean section in our hospital in recent 9 years, and explore the risk factors of incision fat liquefaction after operation. Methods 1 018 patients undergoing cesarean section in our hospital from January 2011 to August 2019 were divided into two groups: incision fat liquefaction group and grade A healing group. The differences between the two groups were compared and the risk factors were analyzed. Results Among 1 018 parturients, 34 had incision fat liquefaction, and the incidence was 3.34% (34/1018). Univariate analysis showed that diabetes mellitus, overweight body mass index and incision length of more than 7 cm were risk factors for incision fat liquefaction after operation, and the difference was statistically significant. Multivariate logistic regression analysis showed that diabetes mellitus, overweight body mass index and incision length over 7 cm were independent risk factors for incision fat liquefaction. Conclusion The incision fat liquefaction rate is higher in patients undergoing cesarean section. Controlling blood sugar level, body mass index during pregnancy and shortening the length of incision during perioperative period may effectively reduce the incidence of incision fat liquefaction.

目的 分析广州血液中心以“生日献血纪念章”(下称生日纪念章)个性化专属纪念品对献血者的招募保留效果进行分析和研究。方法 2017年—2019年期间,广州血液中心生日当天献血者共11 790名,每半年生日当天献血的献血者人数,绘制折线图,分析2018年7月起“生日纪念章”活动前后,生日当天献血的献血者人数变化;卡方检验对比2组献血人群特征差异,分析该活动敏感人群。结果 2017年—2019年每半年生日当天献血人数总体持续增长,其中2018年7—12月较2018年1—6月,生日当天献血人数增长了406%,增长比例最大。活动前后2组人群性别、年龄、职业及既往献血次数分布差异均有统计学意义(P<0.05)。活动后男性、35岁及以上献血者、工人/职员及其他职业,固定献血者比例增加。结论 广州血液中心的“生日纪念章”活动对生日当天献血有明显的促进效果,其中,男性,年龄35岁及以上,工人/职业/其他职业及固定献血者对该活动更敏感,更可能选择生日当天献血。今后针对女性、25岁以下、学生及初次献血者,注意增加其他招募保留措施。

Objective To analyze the effect of the “Birthday Blood Donation Medal” (hereinafter referred to as the Birthday Medal) personalized souvenir to the blood donor recruitment and retention effect of blood donors in Guangzhou Blood Center. Methods From 2017 to 2019, there were a total of 11 790 blood donors donated blood on their birthday in Guangzhou Blood Center. Aline chart was drawn of the number of blood donors who donated blood on birthday to observe the trends every half a year from 2017 to 2019; Chi-square test was used to compare the characteristics of blood donors in two groups (before and after the “Birthday Blood Donation Medal” activity) and we analyzed the sensitive population of the activity. Results The number of blood donors on the birthday every half year from 2017 to 2019 continued to increase. Among them, the number of blood donors donated on birthday on July-December 2018 increased by 406% compared to the first six months of 2018, which was the largest increase. The differences in gender, age, occupation, and previous blood donation times between the two groups were statistically significant (P<0.05). After the activity, the percentage of male, 35-year-old and above blood donors, workers/clerks and other occupations, and regular blood donors increased. Conclusion The “Birthday Blood Donation Medal” activity in Guangzhou Blood Center has a significant promotion effect on blood donation on birthday. Among them, males, aged 35 and above, workers/occupations/other occupations and regular blood donors are more sensitive to this activity and are more likely to donate blood on birthday. In the future, other recruitment and retention measures should be taken to pay attention to women, under 25 years old, students and first-time blood donors.