目的 应用生物信息学的方法筛选参与星型胶质细胞瘤的预后生物标志物。方法 首先,下载GEO(gene expression omnibus,GEO)数据库中星型胶质细胞瘤的基因芯片数据,通过R语言将来自4个数据集的基因芯片数据进行合并,将合并后的194人来源的脑组织样本分为:星型胶质细胞瘤组和正常组。然后对原始基因芯片数据进行批次效应去除和标准化处理,并使用密度图和主成分分析监测处理前后的效果。利用R语言中的limma包对处理后的基因芯片数据进行差异表达分析,从而筛选得到星型胶质细胞瘤组和正常组中之间的差异表达基因(differentially expressed genes,DEGs)。接着对差异表达基因进行GO(gene ontology,GO)分析和KEGG(kyoto encyclopedia of genes and genomes,KEGG)分析,并对所有基因的表达矩阵进行GSEA(gene set enrichment analysis,GSEA)分析。通过STRING数据库构建差异表达基因的蛋白—蛋白相互作用网络(protein-protein interaction,PPI),通过Cytoscape中的cytoHubba插件筛选Hub基因。为了探索Hub基因在星型胶质细胞中的诊断价值和预后价值,我们下载TCGA(the cancer genome atlas,TCGA)数据库中的基因表达数据和临床预后资料,使用ROC曲线评价Hub基因的诊断价值,并对诊断价值较高的Hub基因进行COX回归,筛选HR值最有意义的基因进行总生存分析(overall survival,OS)。结果 通过limma包总共分析得到1 043个差异表达基因。GO分析结果表明差异表达基因主通过影响神经突触的功能而发挥作用。KEGG分析结果显示钙信号通路、cAMP信号通路、MAPK信号通路、PI3K-Akt信号通路、Rap1信号通路和Ras信号通路等通路等在星型胶质细胞瘤中发挥着重要的作用。GSEA富集分析结果主要富集于细胞因子-细胞因子受体相互作用、JAK-STAT信号通路、逆行内源性大麻素信号、神经活性配体-受体相互作用、GABA能突触和钙信号通路等通路。通过PPI网络总共分析得到ADCY1、ANXA1和PENK等20个Hub基因。通过对Hub基因的诊断价值和预后价值进行评价,发现SST在星型胶质细胞瘤既可作为诊断标志物,也可作为预后生物标志物。结论 我们通过生物信息学分析发现SST可作为星型胶质细胞的预后生物标志物,又预测了Rap1信号通路有可能成为星型胶质细胞分子机制中的新通路。
Objective To screen biomarkers involved in the prognosis of astrocytoma by bioinformatics. Methods Firstly,the gene chip data of astrocytoma in GEO database were downloaded. The gene chip data from four data sets were combined by R language. The combined 194 human brain samples were divided into astrocytoma group and normal group. Then,the original microarray data were processed by batch effect removal and standardization,and the effects before and after processing were monitored by density map and principal component analysis. The differentially expression genes (DEGs) between astrocytoma group and normal group were screened by using limma package of R language to analyze the differentially expression of the processed gene chip data. Then gene ontology(GO) analysis and Kyoto encyclopedia of genes and genes (KEGG) analysis were carried out for the differentially expressed genes,and gene set enrichment analysis (GSEA) was carried out for the expression matrix of all genes. The protein-protein interaction (PPI) network of differentially expressed genes was constructed by using string database,and the Hub gene was screened by using the cytohubba plug-in of Cytoscape. In order to explore the diagnostic value and prognostic value of Hub gene in astrocytes,we downloaded the gene expression data and clinical prognostic data in the Cancer Genome Atlas(TCGA) database,used ROC curve to evaluate the diagnostic value of hub gene,and Cox regression for Hub gene with high diagnostic value,and screen the most significant gene of HR value for overall survival(OS) analysis. Results A total of 1 043 differentially expressed genes were obtained by limma analysis. Go analysis showed that the differentially expressed genes played an important role by affecting the function of synapses. KEGG analysis showed that calcium signaling pathway,cAMP signaling pathway,MAPK signaling pathway,PI3K Akt signaling pathway,Rap1 signaling pathway and Ras signaling pathway played an important role in astrocytoma. The results of GSEA enrichment analysis were mainly enriched in cytokine cytokine receptor interaction,JAK-STAT signaling pathway,retrograde endogenous cannabinoid signaling,neuroactive ligand receptor interaction,GABAergic synapse and calcium signaling pathway. A total of 20 Hub genes such as ADCY1,ANXA1 and PINK were obtained by PPI network analysis. By evaluating the diagnostic and prognostic value of hub gene,we found that SST could be used as both a diagnostic marker and a prognostic biomarker in astrocytoma. Conclusion We found that SST could be used as a biomarker for the prognosis of astrocytes by bioinformatics analysis,and predicted that Rap1 signaling pathway may be a new pathway in the molecular mechanism of astrocytes.
目的 研究富血小板血浆联合强骨胶囊对大鼠骨质疏松性骨折骨愈合的影响。方法 80只未交配、3月龄雌性健康SD大鼠作为研究对象,将以上大鼠分为空白组(K组)、PRP组(P组)、强骨胶囊组(Q组),联合组(L组),每组大鼠20例,分析四组大鼠的骨痂显微形态、组织形态学以及生物力学指标之间的差异。结果 经过两两比较,联合用药组患者的骨小梁体积、数量、厚度、连接密度高于单独用药组,分离度、表面积体积比低于对照组(P＜0.05);联合用药组患者的最大载荷、结构能量吸收、材料最大应力、材料能量吸收高于单独用药组;经过两两比较,联合用药组患者的骨架面积及软骨或骨性骨痂面积比高于单独用药组。结论 富血小板血浆联合强骨胶囊通过对骨折部位骨质密度以及骨质强度的增强,大鼠骨质疏松性骨折骨愈合情况良好。
Objective To study the effect of platelet rich plasma combined with Qianggu capsule on osteoporotic fracture healing in rats. Methods 80 unmatched and 3-month-old female healthy SD rats were divided into blank group (group K),PrP group (group P),Qianggu capsule group (group Q),combined group (group L) and 20 rats in each group. The differences of callus morphology,histomorphology and biomechanical indexes among the four groups were analyzed. Results After comparing the two groups,the volume,quantity,thickness and connection density of trabecula in the combined group were higher than those in the single drug group,and the separation and surface area volume ratio were lower than those in the control group (P< 0.05); the maximum load,structural energy absorption,material maximum stress and material energy absorption in the combined group were higher than those in the single group; after comparing the two groups,in the combined group,skeleton area and area ratio of cartilage or osteotylus in the treatment group were higher than that in single-drug group. Conclusion Platelet rich plasma combined with Qianggu capsule may enhance the bone density and bone strength of the fracture site,and the osteoporotic fracture healing in rats is good.
目的 探讨精神分裂症患者载脂蛋白E基因多态性与血清ApoE浓度、血脂、心血管疾病发生风险的相关性。方法 收集住院精神分裂症患者116例,记录一般资料和测定患者载脂蛋白E基因(APOE)、载脂蛋白E(ApoE)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、心血管疾病发生风险评分(Framingham risk score,FRS)等指标。结果 ①APOEε2、ε3、ε4不同等位基因组精神分裂症患者TC、载脂蛋白E、FRS评分差异有统计学意义(P=0.01,P=0.005,P=0.012)。②载脂蛋白E与TC、FRS评分存在负相关关系(rs=-0.48,P=0.02;rs=-0.52,P=0.04),APOE ε4等位基因组载脂蛋白E与TC、FRS评分存在更高的相关关系(rs=-0.55,P<0.001;rs=-0.63,P=0.04)。结论 精神分裂症患者ApoE基因多态性与载脂蛋白E、胆固醇、FRS评分存在关联,ApoE基因-载脂蛋白E-胆固醇代谢通路可能是精神分裂症患者心血管疾病的致病机制之一。
目的 从生物力学应力调控角度,探讨组织间质液压升高诱发肝纤维化的分子细胞机制。方法 人肝星状细胞随机分为3组,模型组:将其置于压力箱中施加恒定的高于大气压50 mmHg压力;实验组:加入ROCK抑制剂Y-27632(浓度10 μmol)置于与实验组相同条件;对照组:不加压置于相同培养箱中。应用RC-PCR检测其α-SMA、RhoA、ROCK mRNA的表达量,并应用免疫荧光染色分析其α-SMA、ROCK1、ROCK2蛋白表达情况。结果 间质液压变化对人肝星状细胞中α-SMAmRNA的表达量比对照组表达量增加,RhoA mRNA的表达先上升后下降,只对早期压力有变化,而 ROCK mRNA的表达量无明显变化。抑制剂组和压力组α-SMA 、ROCK1荧光强度较对照组增强,ROCK2荧光强度无明显变化,其中模型变化更显著。结论 细胞间质液压升高能通过RhoA/ROCK1信号通路引起肝星状细胞的活化。
目的 探讨实习前护理知识技能评价与实习教学目标相结合的临床护理实习培训效果。方法 选择2018年在我科实习的护理本科实习生40名为对照组,采取传统的带班实习带教方法进行临床带教;2019年在我科实习的40名护理本科实习生为实验组,对实习生在实习前进行护理知识和护理操作能力评估,根据实习生专业知识与护理技术的评估结果,结合实习教学目标进行针对性的临床带教;实习结束对两组同学掌握的护理理论知识、护理操作技术、服务满意度进行评价。结果 实验组掌握的护理知识、护理操作技术得分均高于对照组,两组结果比较差异有统计学意义(P<0.001);服务满意度评价实验组高于对照组,两组结果比较差异有统计学意义(P<0.05);结论 开展实习前护理专业能力评价与教学目标相结合的护理临床实习培训模式管理,有助于带教老师掌握实习生存在的护理知识缺乏和护理技术薄弱问题,利于带教老师制定合理的实习带教计划和带教重点,提高学生临床实习效果和老师的带教质量。
Objective To explore the effect of clinical nursing practice training combined with the evaluation of nursing knowledge and skills and teaching objectives before practice. Methods 40 nursing undergraduates who practiced in our department in 2018 were selected as the control group, and the traditional method of clinical teaching was adopted; 40 nursing undergraduates who practiced in 2019 were selected as the experimental group to evaluate the nursing knowledge and nursing operation ability of the interns before the practice, according to the evaluation results of professional knowledge and nursing technology of the interns, combined with the practice teaching at the end of the internship. The students in the two groups were evaluated on their theoretical knowledge, nursing operation technology and service satisfaction. Results The scores of nursing knowledge and nursing operation technology in the experimental group were higher than those in the control group, and the results of the two groups were statistically significance (P<0.001); the evaluation of service satisfaction in the experimental group was higher than that in the control group, and the results of the two groups were statistically significance (P<0.05); Conclusion To carry out the management of nursing clinical practice training mode combining the evaluation of nursing professional ability with teaching objectives before practice is helpful for the teachers to find out problems of lack of nursing knowledge and weak nursing technology existing in the interns. It helps the teachers to formulate reasonable practice teaching plan and key points, and improves the effect of students' clinical practice and the quality of teaching.
目的 开展卫生应急演练并总结经验,探讨演练在提高新发传染病应急处置能力中的作用。方法 以桌面演练和功能性演练为手段,在广州某三甲医疗机构开展演练活动,并对演练效果进行评价。结果 全院共51个科室开展新发传染病防控卫生应急演练,全院演练平均得分4.87。演练为新发传染病应急处置积累了实战经验,达到了锻炼队伍、提高能力的作用。结论 卫生应急演练是检验和提高新发传染病应急处置水平的重要手段,医疗机构通过推进演练活动的制度化、规范化和常态化,可促进新发传染病应急处置工作能力提升。
Objective To carry out health emergency exercises and summarize experiences, and to explore the role of exercises in improving emergency response capabilities for emerging infectious diseases. Methods Using tabletop exercises and functional exercises as means, the exercises were conducted in a tertiary class healthcare facilitie in Guangzhou, and the effects of the exercises were evaluated. Results A total of 51 departments in the hospital conducted health emergency exercises for the prevention and control of emerging infectious diseases, and the average score of the exercises was 4.87. The exercises accumulated actual combat experience for emergency treatment of emerging infectious diseases, and achieved the effect of training the team and improving the capabilities. Conclusion Health emergency exercise is an important mean to test and improve the emergency response capability of emerging infectious diseases. Healthcare facilities can promote the improvement of emergency response capabilities of emerging infectious diseases by promoting the institutionalization, standardization and normalization of exercise activities.
目的 探讨臭氧水在外科手消毒中的消毒效果和医护人员的舒适度。方法 将参加手术的医务人员80例按时间段分为对照组、低浓度组、高浓度组,于消毒后分别进行手采样培养,并进行分析。结果 消毒后三组在菌落数比较差异有统计学意义(P<0.01);消毒后三组皮肤在发痒、脱屑、干燥评分比较差异有统计学意义(P<0.05);在气味、粘腻感、干燥速度比较差异有统计学意义(P<0.05)。结论 臭氧水用于外科手消毒效果可靠,无刺激气味和粘腻感,医护人员感觉更舒适。
Objective The aim of this study was to explore the disinfection effect of ozone water in surgical hand disinfection and the comfort of medical staffs. Methods 80 medical staffs who participated in surgeries were divided into control group, low-concentration group and high-concentration group according to the time period. After disinfection, hand samples were cultured and analyzed. Results After disinfection, there were statistically significance in colony number (P<0.01), itching, scaling and drying scores (P<0.05), odor, stickiness and drying speed (P<0.05). Conclusion Ozone water for surgical hand disinfection is reliable, no irritating odor and stickiness, and makes medical staffs feel more comfortable.
目的 探索冻融胚胎移植周期胚胎移植前宫腔灌注胚胎培养上清液对胚胎种植及妊娠结局的影响。方法 纳入我院 2019 年 3 月—2019 年 12 月 共计198个冻 融 胚 胎 移 植 ( frozen-thawed embryo transfer,FET)周期。根据 FET 术前是否予胚胎培养液上清液宫腔灌注操作分成 2 组,灌注组93 个周期,对照组即未灌注组105个周期。灌注组分别于FET术前 4 周和术前 1 天行宫腔灌注胚胎培养上清液,对照组未行胚胎培养上清液宫腔灌注,对比两组患者胚胎着床率、临床妊娠率、流产率。结果 灌注组患者的胚胎着床率高于对照组,差异有统计学意义(P＜0.05)。两组间的临床妊娠率、流产率未见统计学差异(P>0.05)。结论 FET术前宫腔灌注胚胎培养上清液可提高胚胎种植率。
Objective To investigate the potential impact of intrauterine perfusion of embryo culture supernatant before frozen-thawed embryo transfer (FET) on pregnancy outcome. Methods From March to December 2019, a total of 198 FET cycles were enrolled for the present study.Patients were divided into two groups: the study group included 93 cycles, patients in this group received intrauterine perfusion of embryo culture supernatant four weeks and one day before the embryo transfer, respectively; the control group included 105 cycles, and patients in this group did not receive intrauterine perfusion. Rates of implantation, pregnancy, and miscarriage were compared between the two groups. Results The implantation rate in the study group was higher than that in the control group (P<0.05). There were no significant differences in clinical pregnancy rate and abortion rate between the two groups (P>0.05). Conclusion With the performance of intrauterine perfusion of embryo culture supernatant before embryo transfer, the implantation rate may be improved in FET cycles.
目的 观察普瑞巴林联合甲钴胺对腰椎手术术后急性疼痛的影响。方法 按照纳入排除标准选择2019年1月—2019年12月在我院行单一节段的腰椎手术患者共60例,缝皮时常规予0.375%罗哌卡因20 mL切口周围浸润,术后使用病人静脉自控镇痛(Patient-Controlled Intravenous Analgesia, PCIA)。患者随机分为2组,实验组:术前1天开始口服普瑞巴林75 mg bid和静脉注射甲钴胺注射液 0.5 mg qd,共5天;对照组:术前1天开始口服普瑞巴林 75 mg bid和注射等体积的生理盐水,共5天。观察术前和术后6、12、24、48 h的VAS评分,在术前、术后24 h和术后48 h进行JOA评分,记录术后24 h和48 h阿片类药物用量、PCIA按压次数、补救用药量和不良反应。结果 两组患者术后12 h内的VAS评分无差异,但是在12～48 h这段时间里实验组的静息VAS和运动VAS评分均低于对照组(P<0.05)。实验组在术后24 h和48 h舒芬太尼消耗量、PCIA按压次数和平均补救用药剂量少于对照组(P<0.05),两组患者的JOA评分和不良反应均无差异(P>0.05)。结论 普瑞巴林联合甲钴胺应用于腰椎手术患者术后镇痛效果良好,药物不良反应发生率低,但仍需进行更大规模的随机对照研究证实该镇痛方案的安全性和有效性。
Objective To observe the effect of pregabalin combined with mecobalamin on acute pain after lumbar surgery. Methods A total of 60 patients underwent single lumbar spine surgery in our hospital from January 2019 to December 2019. The incisions of patients were routinely infiltrated around the incision with 0.375% ropivacaine 20 mL. Patient-controlled intravenous analgesia (PCIA) was used. The patients were randomly divided into two groups. The experimental group: oral pregabalin 75mg bid and intravenous mecobalamin injection 0.5mg qd 1 day before surgery, five days in total. Control group: oral pregabalin 75mg bid and intravenous injection of equal volume of saline 1 day before surgery, five days in total. The VAS scores of preoperative and postoperative 6, 12, 24, and 48 h were observed. JOA scores were performed before surgery, 24 h after surgery, and 48 h after surgery. The doses of opioids, PCIA pressing times, remedial medications and adverse reactions were recorded at 24 h and 48 h after surgery. Results There was no significant difference in VAS scores between the two groups within 12 h after surgery, but the resting VAS and exercise VAS scores in the experimental group were lower than those in the control group during the period of 12～48 h (P<0.05). The amount of sufentanil, the pressing times of PCIA and the average remedial medication in the experimental group were lower than those in the control group at 24 h and 48 h after operation (P<0.05). There were no significant differences in JOA scores and adverse reactions between the two groups (P>0.05). Conclusion Pregabalin combined with mecobalamin in patients with lumbar spine surgery has good postoperative analgesia and low incidence of adverse drug reactions, but more randomized controlled trials are needed to confirm the safety and efficacy.
目的 探讨孕中后期中低等强度有氧运动对高龄孕妇产前生活质量和母婴结局的影响。方法 选2017年8月—2018年12月我院接收的560名高龄孕妇作为研究对象,随机分成数量相等的两组。对照组采取常规孕期保健服务和健康教育,观察组则在此基础上增加孕中后期中低等有氧运动的干预,问卷法调查两组孕妇的抑郁情况、睡眠质量、产前生活质量,并比较两组孕妇的母婴结局。结果 χ2检验结果显示,研究组对象平均每周运动次数≥3次及平均每次运动时间≥30 min的比例高于对照组(P=0.001)。研究组对象的EPDS抑郁分值和SRSS睡眠质量分值均低于对照(P=0.006)。研究组对象产前GQOLI-74生活质量问卷中生活质量总得分高于对照组(P=0.000 1)。研究组对象的妊娠糖尿病、妊娠高血压、难产率、巨大儿发生率均低于对照组(P=0.039),但自然分娩率高于对照组(P=0.004)。结论 以瑜伽、慢走或散步为主的中低强度的有氧运动可能有助于提供高龄孕妇的产前生活质量,预防妊娠疾病和不良母婴结局,在临床上具有一定的推广意义。
Objective To study the influences of medium or low strength aerobics during 2nd and 3rd trimester on life quality and pregnant outcome of elderly pregnant women. Methods To select 560 elderly pregnant women in our hospital during August 2017 to December 2018 as the objects of this study. Objects were divided into control group which was given routine pregnant health services and study group which was given medium or low strength aerobicsduring 2nd and 3rd trimester excluding in addition. Questionnaires were used for collecting messages of depression, sleeping, life quality of objects. Pregnant outcome were compared of two groups by Chi-square test in this study. Results The ratio of average aerobics more than 3 times per week and average time more than 30min each time of study group were higher than control group(P=0.001). The scores of EPDS and SRSS of study group were lower than control group(P=0.006). The scores of GQOLI-74 of study group were higher than control group(P=0.000 1). The ratio of pregnant diabetes mellitus, pregnant hypertension, dystocia, fetal macrosomia of study group were lower than control group(P=0.039) but the ratio of eutocia was higher than control group(P=0.004). Conclusion The medium or low strength aerobics such as Yoga, taking a walk may improve pregnant life quality of elderly pregnant women and prevent pregnancy disease and abnormal pregnant outcome that deserved to promote in clinic.
