目的 观察电子束照射对体外培养的细粒棘球蚴形态结构、死亡率及其p38 mRNA表达的影响。方法 采集自然感染的绵羊肝中的细粒棘球蚴原头蚴,随机分成3组,分别用0 Gy、30 Gy、60 Gy的不同剂量的6 MeV电子束各照射1次,照射后连续培养3 d、14 d,光镜观察虫体的大体变化及死亡率,qRT-PCR法测定p38基因的表达水平。结果 60 Gy组较0 Gy、30 Gy组原头蚴变性坏死数目明显增多,死亡率有差异（P<0.0125）,连续培养天数（3 d、14 d）对虫体死亡率无影响。经电子束照射后,30 Gy、60 Gy组原头蚴p38 mRNA表达水平较0 Gy组升高（P<0.05）。结论 体外培养的原头蚴经电子束照射后大体形态结构发生明显变化、死亡率升高,且与电子束的剂量存在量效关系;p38 mRNA的表达量随着电子束的剂量的增加而升高,p38基因可能参与电子束所致体外杀伤棘球蚴的作用机制。

Objective To observe the effect of 6 MeV electron beam on the morphological structure,mortality rate and expression of p38 mRNA and in Echinococcus granulosus．Methods Einococcus granulosus was collected from natural infected sheep liver and divided into 3 groups randomly,then irradiated by 6 MeV electron beam of 0 Gy,30 Gy and 60 Gy,respectively．After culturing for 3 and 14 days,the gross change and mortality of worms were observed by light microscopy and the expression level of p38 gene was determined by qRT-PCR．Results In 60 Gy group,compared with 0 Gy and 30 Gy group,the gross morphology and structure have changed significantly,the mortality rate was significantly different（P <0.0125）．Days of culture（3 days,14 days）had no obvious effect on mortality,and the p38 mRNA expression levels in 30 Gy and 60 Gy group were significantly higher than 0 Gy group（P <0.05）．Conclusions The gross morphology,structure changes and mortality of Einococcus granulosus increases significantly after electron beam irradiation and has obvious quantitative and effective relationship with the electron beam dose,the p38 gene may be involved in the mechanism of in vitro killing by electron beam.

肿瘤相关巨噬细胞（TAMs）是肿瘤微环境中最丰富的免疫细胞之一,M2-TAMs在肿瘤发生、发展、转移和治疗过程中发挥重要作用,被认为是肿瘤治疗中的重要靶点。已有的研究表明,通过将促肿瘤的M2-TAMs重编程为促炎的M1-TAMs可实现抑制肿瘤生长和转移。本综述在介绍TAMs与肿瘤治疗相关背景的基础上,重点关注纳米药物重编程TAMs增强抗肿瘤的研究进展。本文将从TAMs靶向递送各种活性物质进行重编程TAMs和纳米药物介导的异常肿瘤微环境调节的间接重编程TAMs两种方式,综述近年来基于纳米药物递送系统的调控策略及典型例子。

Tumor associated macrophages（TAMs）is one of the most abundant immune cells in the tumor microenvironment．M2-TAMs play an important role in tumor genesis,progression,metastasis and treatment,and is additionally a very important target in tumor therapy．Previous studies have shown that inhibition of tumor growth and metastasis can be achieved by reprogramming M2-TAMs to M1-TAMs．On the basis,this review focuses on the analysis progress of nano-drug reprogramming TAMs to boost anti-tumor．In this paper,we reviewed two methods of reprogramming TAMs for targeted delivery of various active substances and indirect reprogramming TAMs for abnormal tumor microenvironment regulation mediated by nanomedicine．The regulatory strategies and typical samples of nanomedicine delivery systems in recent years were summarized.

现代人面临更大的工作与生活压力,每天的生活节奏较快,因此经常出现饮食不规律、饮食结构不合理等现象,这样就增加了肠胃疾病的发生率。胃肠道间质瘤（GIST）以人体胃肠道最为常见的肿瘤疾病,该病患者占全部胃肠道间叶性肿瘤患者人数的80%以上。GIST根据疾病进展、间质瘤体积等不同因素又能够分为不同的疾病类型,需采取对应的诊断措施与治疗措施。本文将针对胃小间质瘤的流行病学、临床症状、临床诊断以及治疗措施等进行研究与分析,以供参考。

Modern people are facing greater pressure in work and life,and the pace of daily life is fast．Therefore,irregular diet and unreasonable diet structure often occur,which increases the incidence of gastrointestinal diseases．Gastrointestinal stromal tumor（GIST）is the most common tumor disease in human gastrointestinal tract,accounting for over 80% of all patients with gastrointestinal mesenchymal tumors．GIST can be divided into different types according to different factors such as disease progression and stromal tumor volume,thus corresponding diagnostic and therapeutic measures should be taken．This paper studied and analyzed the epidemiology,clinical symptoms,clinical diagnosis and treatment of gastric small stromal tumors for reference．

目的 探讨电针联合低频电刺激对中风后上肢弛缓瘫患者上肢功能重建的影响。方法 选择2019年10月—2022年2月期间我院收治的100例中风后上肢弛缓瘫患者,按随机数字表法分为对照组（C组）和观察组（O组）,各50例。C组实施电针治疗,O组在C组基础上增加低频电刺激。对比2组的上肢肌群RMS值、徒手肌力、上肢功能。结果 入组时2组的腕屈伸肌群均方根值（RMS）对比无差异（P>0.05）,干预1、2、3、4周后,O组的腕屈伸肌群RMS值高于C组（P<0.05）。干预4周后,O组的徒手肌力优于C组（P<0.05）。O组的Fugl-Meyer -上肢功能、Wolf 上肢运动功能评定（WMFT）得分高于C组（P<0.05）。结论 在电针治疗基础上联合低频电刺激能显著改善中风后上肢弛缓瘫患者的徒手肌力,增加患肢的肌电值,促进上肢功能恢复。

目的 研究不同孕周妊娠期肝内胆汁淤积症（ICP）产妇胆汁酸、肝酶、α-羟丁酸脱氢酶（α-HBDH）水平与围产儿结局关系。方法 采用病例对照研究方法,选取孕中期和晚期ICP组、对照组为研究对象。生化仪检测总胆汁酸（TBA）、血清肝酶、α-HBDH水平。高效液相色谱串联质法检测血清内胆酸（CA）、鹅脱氧胆酸、脱氧胆酸（DCA）、石胆酸（LCA）等游离胆汁酸含量。结果 孕中期ICP组血清内CA、DCA、LCA、TBA丙氨酸氨基转移酶（ALT）、天门冬氨酸氨基转移酶（AST）均大于孕晚期组,差异有统计学意义（P<0.05）。多因素Logistic 回归分析结果显示：ALT、AST、a-HBDH、CA、DCA、LCA和TBA升高是围产儿不良结局的危险因素。结论 各类胆汁酸、肝酶、α-羟丁酸脱氢酶对围产儿结局预测价值不同。ALT、AST、a-HBDH、CA、DCA、LCA和TBA升高是围产儿不良结局的危险因素。

目的 探究前瞻性护理对老年吸入性肺炎的影响和作用。方法 选择2017年8月—2018年12月住院采取常规护理的94例老年患者作为对照组,选择2019年1月—2020年10月住院的114例老年患者作为观察组进行前瞻性护理,比较对照组和观察组吸入性肺炎的发病率。结果 观察组吸入性肺炎发病率低于对照组（P<0.05）。结论 前瞻性护理可及早筛选并识别老年患者发生吸入性肺炎的危险因素,依此采取相应的护理措施,降低吸入性肺炎的发病率。

Objective To explore the effect of prospective nursing on preventing aspiration pneumonia in elderly patients．Methods A total of 94 elderly patients who were hospitalized from August 2017 to December 2018 and received routine care were selected as the control group,and 114 elderly patients who were hospitalized from January 2019 to October 2020 were selected as the observation group for prospective care,and the incidence of aspiration pneumonia in the control group and the observation group were compared．Results The incidence of aspiration pneumonia in the observation group was lower than that in the control group（P<0.05）．Conclusions Prospective nursing can identify risk factors of aspiration pneumonia in elderly patients,and take appropriate nursing measures to reduce the incidence of aspiration pneumonia．

目的 分析华北地区某医院院前急救医疗服务的资源利用状况,并依据相关影响因素针对院前急救医疗服务过程中存在问题提出相应对策。方法 收集2021年3月—2022年4月期间就诊于华北地区某医院急诊科患者的一般资料、就诊过程、症状特征。依据是否接受过院前急救服务、是否为疾病急性发作的危重症患者将患者分为4组,分析比较4组患者在一般资料、疾病病症特点两个方面是否存在统计学差异,探索影响院前急救医疗资源合理利用的相关因素。结果 本研究总计收纳患者病例5 800例,其中接受院前急救医疗服务的患者共840例占总调查人数的14.5%,其中危重症患者530例（63.1%）,非危重症患者310例（36.9%）;未接受院前急救医疗服务的患者为4 960例占总调查人数的85.5%,其中危重症患者803例（16.2%）。对所得数据采用多因素回归方法分析得知,在急诊科接受的危重症患者中急性胸痛与突发性头痛是选择不使用院前急救医疗措施的独立影响因素。在非危重症患者中发热、外伤、腹痛是非急重症患者接受院前急救医疗服务的独立影响因素。结论 院前急救医疗服务资源的提供与利用在实际应用的过程中存在资源闲置与服务空缺的问题。危重症患者在入院前仍有较大比例的患者没有选择接受院前急救医疗服务。该情况表明当前居民对危重症患者危重症状及院前急救医疗服务了解与认知不足,对此有必要加强对居民关于院前急救服务的科普宣教工作,并借助现有医疗服务力量支持院前急救医疗服务的规范与准则,这对保障患者生命安全,争取危重症患者存活机会,促进急救资源合理利用具有重要意义。

Objective To analyze the resource utilization status of pre-hospital emergency medical services in a hospital in North China,and to propose corresponding countermeasures for problems in the process of pre-hospital emergency medical services according to relevant influencing factors．Methods From March 2021 to April 2022,the general data,treatment process and symptom characteristics of patients who were treated in the emergency department of a hospital in North China were collected．According to whether they had received pre-hospital emergency services and whether they were critically ill patients with acute onset of disease,the patients were divided into four groups．Whether there were statistical differences in the general data and disease characteristics of the four groups of patients,and the relevant factors affecting the rational utilization of pre-hospital emergency medical resources were explored．Results This study included 5 800 patients,of which 840 patients receiving pre-hospital emergency medical services,accounted for 14.5% of the total survey,including 530（63.1%）and 310 non-critically ill patients（36.9%）;4 960 patients not receiving pre-hospital emergency medical services accounted for 85.5% of the total survey,including 803（16.2%）of critically ill patients．Analysis by multivariate regression methods on the obtained data showed that acute chest pain and sudden headache in critically ill patients in the emergency department were independent influencing factors in choosing not to use pre-hospital emergency medical measures．Fever,trauma,and abdominal pain in non-critically ill patients were independent factors influencing the reception of pre-hospital emergency medical services．Conclusions The provision and utilization of pre-hospital emergency medical service resources have the problem of idle resources and service vacancies in the process of practical application．A significant proportion of critically ill patients still do not choose to receive pre-hospital emergency medical services before admission．This situation shows that the current residents have insufficient understanding and cognition of critical symptoms and pre-hospital emergency medical services,and it is necessary to strengthen the scientific popularization and education of residents on pre-hospital emergency services,and support the norms and guidelines of pre-hospital emergency medical services with the help of existed medical services,which is of great significance for ensuring the safety of patients' lives,striving for the survival opportunities of critically ill patients,and promoting the rational use of emergency resources．

目的 探究麦默通（Mammotome）微创旋切术加置引流对乳腺良性肿物患者术后疼痛、炎性应激指标及并发症的影响。方法 选取本院2020年1月—2022年1月收治的100例乳腺良性肿物患者,简单随机法进行分组,每位患者赋予1位随机数,1~51号为实验组,采用Mammotome微创旋切术加置引流,52~100号为对照组,实施Mammotome微创旋切术。对比2组治疗效果、围术期指标、术前及术后1 d、3 d疼痛程度（NRS评分）、术前及术后3 d炎性应激指标及并发症情况。结果 2组病灶清除率（100.00%、97.96%）、并发症发生率（3.92%、16.32%）间无差异（P>0.05）;相较于对照组,实验组手术时间较长,残腔积液较少,住院时间较短（P<0.05）;术后1 d、3 d实验组NRS评分低于对照组（P<0.05）;术后3 d 2组C反应蛋白、白介素-6、白介素-1β、降钙素原水平较术前上升,且实验组上升幅度小于对照组（P<0.05）。结论 Mammotome微创旋切术加置引流治疗乳腺良性肿物能减少残腔积液,降低炎症反应程度,有助于术后切口愈合,缓解术后疼痛,且不增加并发症风险。

Objective To investigate the effect of Mammotome minimally invasive excision with drainage on postoperative pain,inflammatory stress indexes and complications in patients with benign breast tumors．Methods A total of 100 patients with benign breast tumors admitted to our hospital from January 2020 to January 2022 were selected and grouped by simple random method,each patient was assigned a random number．Patients No.1 to No.51 were included in the experimental group,treated with Mammotome minimally invasive excision with drainage．Patients No.52 to No.100 were included in the control group,treated with Mammotome minimally invasive excision．The treatment effect,perioperative indicators,pain level（NRS score）and inflammatory stress indexes before and 1st and 3rd days after operation and complications were compared between the two groups．Results There were no significant differences in the lesion clearance rate（100.00% vs 97.96%）and the complication rate（3.92% vs 16.32%）between the two groups（P>0.05）．Compared with the control group,the experimental group had longer operation time,less residual cavity liquid and shorter hospital stay（P<0.05）．The NRS score of the experimental group was lower than that of the control group at 1st and 3rd days after operation（P<0.05）．On the third day after operation,the levels of C-reactive protein,interleukin- 6,interleukin-1β and procalcitonin in the two groups were increased compared with those before operation,and the increase in the experimental group was smaller than that in the observation group（P<0.05）．Conclusions Mammotome minimally invasive excision with drainage in the treatment of benign breast tumors can reduce residual cavity fluid accumulation,reduce the degree of inflammatory response,help postoperative incision healing,relieve postoperative pain,and without increasing the risk of complications．

目的 分析TIMELESS、鼠肉瘤病毒家族相关蛋白2A（RAB2A）、异常纺锤体样小头畸形相关基因（ASPM）在乳腺癌组织中的表达及与临床特征相关性。方法 选取2019年2月—2021年2月我院乳腺癌组织标本84例作为研究组、正常乳腺组织标本53例作为对照组,采用荧光定量聚合酶测定TIMELESS、ASPM,采用Western blot检测RAB2A蛋白表达情况,分析上述三个指标在乳腺癌中表达及与临床特征相关性。结果 对比对照组,研究组TIMELESS、ASPM表达较高,RAB2A较低（P<0.05）。TIMELESS、RAB2A、ASPM与乳腺癌淋巴结浸润、TNM分期、分化程度相关（P<0.05）。TIMELESS、RAB2A、ASPM为影响乳腺癌发生的危险因素（P<0.05）。TIMELESS、RAB2A负相关（r=-0.383、P=0.001）;TIMELESS、ASPM正相关（r=0.397、P=0.001）;RAB2A、ASPM负相关（r=-0.257、P=0.018）。对比TIMELESS、RAB2A、ASPM单一检测,三者联合检测对乳腺癌的诊断价值较高（P<0.05）。结论 乳腺癌患者TIMELESS、ASPM呈高表达,RAB2A呈低表达,上述三个指标与乳腺癌高度相关,可作为乳腺癌发生的检测指标。

Objective To analyze the expression of TIMELESS,murine sarcoma virus family related protein 2A（RAB2A）and abnormal spindle like microcephaly related gene（ASPM）in breast cancer tissues and their correlation with clinical features．Methods A total of 84 breast cancer tissue samples from our hospital from February 2019 to February 2021 were selected as the study group and 53 normal breast tissue samples were selected as the control group．Time,ASPM and RAB2A protein expression were determined by fluorescent quantitative polymerase,and RAB2A protein expression was detected by Western blot．The expression of the above three indicators in breast cancer and their correlation with clinical characteristics were analyzed．Results Compared with the control group,the study group had higher TIMELESS and ASPM expression levels and lower RAB2A level（P<0.05）．TIMELESS,RAB2A and ASPM expressions were correlated with lymph node infiltration,TNM stage and differentiation of breast cancer（P<0.05）．TIMELESS,RAB2A and ASPM were the risk factors of breast cancer（P<0.05）．TIMELESS and RAB2A were negatively correlated（r=-0.383,P=0.001）;TIMELESS and ASPM were positive correlated（r=0.397、P=0.001）;RAB2A and ASPM were negatively correlated（r=-0.257,P=0.018）．Compared with the single detection of TIMELESS,RAB2A and ASPM,the combined detection had higher diagnostic value for breast cancer（P<0.05）．Conclusions Patients with breast cancer had high expression of TIMELESS and ASPM,and low expression of RAB2A．The above three indicators were highly correlated with breast cancer and can be detection indicators for breast cancer．

目的 探讨消肿化瘀膏治疗骨性关节炎的临床疗效。方法 选择2017年5月—2022年1月在本院诊治的骨性关节炎患者124例作为研究对象,根据简单分配原则把患者分为消肿化瘀膏组与传统药物组各62例。传统药物组给予传统药物治疗,消肿化瘀膏组给予消肿化瘀膏治疗,判定2组患者治疗总显效率、疼痛评分、关节评分、血清中炎症因子水平变化。结果 消肿化瘀膏组治疗后的总显效率为98.4%,高于传统药物组的83.9%（P<0.05）。治疗后,2组的疼痛评分都低于治疗前（P<0.05）,且消肿化瘀膏组低于传统药物组（P<0.05）。2组治疗后的关节评分都高于治疗前（P<0.05）,且消肿化瘀膏组与传统药物组相比升高（P<0.05）。2组治疗后的血清白介素-1β、白介素-6水平都低于治疗前（P<0.05）,且消肿化瘀膏组较传统药物组降低更多（P<0.05）。结论 消肿化瘀膏治疗骨性关节炎能有效抑制血清炎症因子的表达,缓解疼痛,改善关节功能,提高患者的总体治疗效果。

Objective To explore the clinical efficacy of Xiaozhonghuayu ointment in the treatment of osteoarthritis．Methods From May 2017 to January 2022,124 patients with osteoarthritis who diagnosed and treated in our hospital were selected as the research subjects．According to the simple allocation principle,the patients were divided into the Xiaozhonghuayu ointment group and the traditional medicine group with 62 cases each．The traditional medicine group was treated with traditional medicine,and the Xiaozhonghuayu ointment group was treated with Xiaozhonghuayu ointment．The total therapeutic efficiency,pain score,joint score,and the changes of serum inflammatory factors were compared in the two groups．Results The total efficiency of Xiaozhonghuayu ointment group after treatment were 98.4%,which were higher than 83.9% in the traditional medicine group（P<0.05）．The pain scores in both groups after treatment were lower than those before treatment（P<0.05）,and that in the Xiaozhonghuayu ointment group were lower than the traditional medicine group（P<0.05）．The joint scores of the two groups after treatment were higher than those before treatment（P<0.05）,and that in the Xiaozhonghuayu ointment group were higher than the traditional medicine group（P<0.05）．After treatment,the levels of serum interleukin-1β and interleukin-6 in the two groups were significantly lower than those before treatment（P<0.05）,compared with the traditional medicine group,those levels in the Xiaozhonghuayu ointment group also decreased significantly after treatment（P<0.05）．Conclusions Xiaozhonghuayu ointment in the treatment of osteoarthritis can effectively inhibit the expressions of serum inflammatory factors,promote pain relief,improve joint function,and improve the overall therapeutic effect of patients．