目的 研究白藜芦醇通过抑制T样受体4/核因子-κB(TLR4/NF-κB)通路对呼吸道合胞病毒(RSV)毛细支气管炎小鼠的保护作用。方法 选取30只小鼠随机分为对照组、RSV组、给药组,建立RSV毛细支气管炎小鼠模型,检测小鼠肺组织中TLR4、NF-κB的变化;利用肺组织HE染色、ELISA法检测白藜芦醇给药前后气道炎症病变、IL-6、TNF-α因子水平,Western Blot法及实时定量PCR法检测TLR4、 NF-κB蛋白及基因表达等相关变化。结果 与对照组相比,RSV组小鼠组肺组织中TLR4、NF-κB水平升高,肺组织切片HE染色显示气道炎症细胞浸润加剧,ELISA检测炎性因子IL-6、TNF-α升高;而给药组处理后,肺组织TLR4、NF-κB的表达下调,病理改变减轻,炎性因子IL-6、TNF-α下降。结论 白藜芦醇可通过抑制TLR4/NF-κB通路抑制炎性因子的释放,从而减轻毛细支气管炎小鼠的气道炎症反应。

Objective To study the protective effect of resveratrol on lung tissue of respiratory syncytial virus(RSV) bronchiolitis mice by regulating TLR4/NF-κB pathway. Methods Thirty mice were randomly divided into control group, RSV group and resveratrol group. The mice models of RSV bronchiolitis were established, and the changes of TLR4 and NF-κB levels in lung tissues of mice were detected. HE staining and ELISA were used to detect airway inflammation, IL-6 and TNF-α levels before and after resveratrol administration. TLR4 and NF-κB protein and gene expressions were detected by Western Blot and real-time quantitative PCR. Results Compared with the control group, the levels of TLR4 and NF-κB in the lung tissues of mice with bronchiolitis were significantly increased. Airway inflammatory cell infiltration was aggravated in HE staining of lung tissue sections, and inflammatory factors IL-6 and TNF-α were significantly increased showing by ELISA. The expressions of TLR4 and NF-κB in resveratrol group were down-regulated after treatment. Conclusions Resveratrol can inhibit the release of inflammatory factors by inhibiting the TLR4/NF-κB pathway, play a protective role in mice with bronchiolitis.

近年来,由于抗生素的不合理使用,导致新型耐药性细菌不断出现,严重危害人类健康,迫使我们急需发现新型抗菌药物来对抗耐药性细菌引起的感染。FtsZ蛋白是细菌分裂的必需蛋白,在细菌分裂增殖过程中起着关键作用。当FtsZ的功能受到抑制时,细菌的分裂增殖亦会被抑制,最终导致细菌死亡。FtsZ蛋白是目前热门的抗菌新靶点之一。本文回顾了FtsZ蛋白的生物学功能,总结了以FtsZ为靶标的新型抗菌分子的研究进展。

Antibiotic-resistant bacterial infection has become epidemic all over the world. To overcome the drug resistance problem, antibacterial agents targeting at new binding sites become critical. FtsZ, a bacterial cell division protein, has become a new attractive target for antibacterial agents’ discovery because it is the most important and conserved protein in bacterial cell division. Cell division will be inhibited when the functions of FtsZ were disturbed. In this article, the biological functions of FtsZ have been reviewed, and recent advances in discovery of FtsZ inhibitors were summarized.

目的 探讨我国南方地区鲍曼不动杆菌流行株ST457毒力进化方向。方法 收集南方地区5家大型三甲医院2012年—2015年血和/或痰标本来源的鲍曼不动杆菌菌株,运用不同毒力实验,比较ST457与其他CC92流行克隆株与非流行克隆株的毒力差异。结果 ST457感染患者早期死亡率高;ST457菌株平均产生物膜能力低于ST195和ST208;83.3%的鲍曼不动杆菌临床分离菌株在血清的存活率大于60%,其中43.3%的菌株可在血清内快速繁殖,不同ST型组间、菌血症组和非菌血症组间无差异;不同ST型菌株竞争后,ST457未展现出竞争优势。结论 与传统CC92流行株相比,ST457毒力表型与传统的CC92流行株类似,提示CC92克隆株共进化能力。部分流行株短时间内在血清中快速繁殖,提示其条件致病后潜在的血流感染的能力。

Objective To investigate the virulence of the prevalent clone ST457 of Acinetobacter baumannii in Southern China. Methods Isolates from sputum and/or blood samples from 2012 to 2015 in 5 large differences between clonal complex 92(CC92) and non-CC92 were estimated by biofilm assay, competition assay and serum assay. Results Patients with ST457 infection had high early mortality. The average biofilm production of ST457 was significantly lower than that of ST195 and ST208. In serum assay, 83.3% isolates survived in the serum with over 60% survival rate, of which 43.3% strains reproduced in the serum, with no difference between STs or between bacteremia and non-bacteremia group. After competing with different ST strains, ST457 shows no competitive advantage. Conclusions ST457 had a similar virulence phenotype with the traditional prevalent CC92 clone, suggesting the co-evolutionary ability for CC92 clone. Some clinical isolates were survived in human serum, suggesting the potential capacity of bloodstream infection.

目的 了解急诊科综合病区患者疾病分类构成的特点,为护士进行有针对性的培训,并为合理调配护理人员提供依据。方法 对2020年1月—2021年12月我院急诊科综合病区收治的1 901例患者疾病分类、收治时间等进行回顾性调查分析。结果 研究期间急诊综合病区共收治患者1 901例,收治患者以呼吸系统的患者居多,占比47.71%;以循环系统疾病的患者平均发病年龄最高,为(66.434±11.691)岁;全年各月以1月、12月收治病人居多。结论 根据调查分析,有针对性地对护士进行呼吸系统疾病护理技能培训,并在收治高峰期,合理调配护理人员,实施弹性排班,保障患者安全,提高护理质量。

Objective To understand the characteristics of disease classification and composition of patients in Comprehensive Ward of Emergency Department, provide targeted training for nurses, and provide basis for rational deployment of nursing staff. Methods A total of 1 901 patients in the Comprehensive Ward of Emergency Department of our hospital from January 2020 to December 2021 were investigated and analyzed retrospectively according to different diseases and time of admission. Results A total of 1 901 patients were treated in the Emergency Comprehensive Ward during the study period. Most of the patients were with respiratory system disease, accounting for 47.71%. The average onset age of patients with circulatory diseases was the oldest, which was (66.434±11.691). Most patients were admitted in January and December. Conclusions According to the investigation and analysis, nurses should be trained with the skills of respiratory diseases nursing, nursing staff should be reasonably allocated and flexible shift should be scheduled during the peak period of admission, so as to ensure the safety of patients and improve the quality of nursing.

目的 探讨加味益气固冲汤在生育期血瘀证崩漏患者治疗中的应用价值及对雌激素水平的影响。方法 按照随机数字表法将2018年11月—2021年1月我院符合诊断标准及选例标准的112例生育期血瘀证崩漏患者分为常规组、实验组,每组56例。常规组予以基础治疗,实验组在常规组基础上采用加味益气固冲汤治疗。比较2组治疗效果、不良反应情况、治疗前后经期出血量、子宫内膜厚度、雌激素水平及血液流变学指标。结果 同常规组总有效率82.14%相比,实验组96.43%较高(P＜0.05);治疗后实验组经期出血量、子宫内膜厚度改善幅度大于常规组(P＜0.05);治疗后实验组黄体生成素、孕酮、卵泡刺激素、雌二醇水平较常规组低(P＜0.05);治疗后实验组红细胞聚集指数、纤维蛋白原、全血低切黏度、血浆黏度均小于常规组(P＜0.05);实验组不良反应总发生率5.36%与常规组10.71%对比,无差异(P＞0.05)。结论 加味益气固冲汤联合西药治疗生育期血瘀证崩漏患者效果显著,调节性激素水平,改善子宫形态,改善血液微循环,缓解经期出血症状。

Objective To explore the application value of Jiawei Yiqi Guchong Decoction in the treatment of patients with blood stasis syndrome of metrorrhagia and metrostaxis and its influence on estrogen level. Methods According to the random number table method, 112 patients with blood stasis syndrome of metrorrhagia and metrostaxis in their reproductive period, who met the diagnostic criteria and case selection criteria in our hospital from November 2018 to January 2021, were divided into conventional group and experimental group, with 56 cases in each group. The conventional group was given basic treatment, and the experimental group was treated with Jiawei Yiqi Guchong Decoction on the basis of the conventional group. The treatment effect, adverse reactions, menstrual bleeding, endometrial thickness, estrogen level and hemorheology indexes before and after treatment were compared between the two groups. Results The total effective rate of experimental group was 96.43%, higher than that of conventional group (82.14%, P<0.05). After treatment, the improvement of menstrual bleeding and endometrial thickness in the experimental group was greater than that in the conventional group (P<0.05). After treatment, the levels of luteinizing hormone, progesterone, follicle stimulating hormone and estradiol in the experimental group were lower than those in the conventional group (P<0.05). After treatment, erythrocyte aggregation index, fibrinogen, whole blood low shear viscosity and plasma viscosity in the experimental group were lower than those in the conventional group (P<0.05). There was no significant difference in the total incidence of adverse reactions between the experimental group (5.36%) and the conventional group (10.71%, P>0.05). Conclusions Jiawei Yiqi Guchong Decoction combined with Western medicine had a significant effect on the treatment of patients with blood stasis syndrome of metrorrhagia and metrostaxis in reproductive period, which can regulate the levels of sex hormones, improve the morphology of uterus, blood microcirculation and relieve the symptoms of menstrual bleeding.

目的 探索冰袋冷敷对膝关节前交叉韧带重建术后关节疼痛肿胀和活动度的影响。方法 回顾性分析自2021年1月—2021年7月在我院因前交叉韧带损伤行前交叉韧带重建术的患者资料,将符合标准的71例行单侧前交叉韧带重建术的患者按住院号的单双号分成2组。其中,对照组38名患者,试验组33名患者。对照组38名患者术后不用冰袋冷敷;试验组33名患者术后采用冰袋冷敷。用视觉模拟评分表评估对照组和试验组患者术前、术后的疼痛,并测量患者的膝关节肿胀程度和活动度。结果 对照组和试验组患者术前视觉模拟评分比较,差异无统计学意义(P>0.05),试验组在术后6、24、48、72小时四个不同的时间点时疼痛视觉模拟评分均明显低于对照组,差异有统计学意义(P<0.001);对照组和试验组患者术前关节活动度比较,差异无统计学意义(P>0.05),试验组在术后4、5、6、7天四个不同的时间点时关节活动度优于对照组,差异有统计学意义(P<0.001);对照组和试验组患者术前膝关节肿胀程度比较,差异无统计学意义(P>0.05),试验组在术后1、2、3天三个不同的时间点时膝关节肿胀程度低于对照组,差异有统计学意义(P<0.001)。结论 冰袋冷敷能够有效减轻前交叉韧带重建术后膝关节疼痛肿胀并改善关节活动度。

Objective To explore the effect of ice pack cold compress on joint pain,swelling and motion after anterior cruciate ligament reconstruction. Methods The data of patients undergoing anterior cruciate ligament reconstruction due to anterior cruciate ligament injury in our hospital from January 2021 to July 2021 were retrospectively analyzed,and 71 patients who received unilateral anterior cruciate ligament reconstruction meeting the standards were divided into two groups according to the odd and even numbers of hospital admission. There were 38 patients in the control group and 33 patients in the experimental group. Thirty-eight patients in the control group did not use ice packs after surgery. Thirty-three patients in experimental group were treated with ice pack after operation. Visual analogue scale was used to evaluate the preoperative and postoperative pain of the control group and experimental group,and the degree of knee swelling and range of motion were measured. Results There was no significant difference in preoperative visual analogue scale between control group and experimental group (P>0.05). The scores of pain in the experimental group were significantly lower than that in the control group at 6,24,48 and 72 hours after surgery,with statistical significance (P<0.001). There was no significant difference in preoperative range of motion between control group and experimental group(P>0.05), the range of motion of the experimental group was significantly better than that of the control group at four different time points of 4,5,6 and 7 days after operation,with statistical significance(P<0.001). There was no significant difference in the degree of preoperative knee joint swelling between the control group and the experimental group(P>0.05),and the degree of knee joint swelling in the experimental group was lower than that in the control group on,1,2 and 3 days after surgery,three different time points, with statistically significant difference(P<0.001). Conclusions Ice pack cold compress can effectively reduce the pain and swelling of the knee joint after anterior cruciate ligament reconstruction and improve the range of motion of the joint.

目的 探索心脏康复干预对房颤合并高血压患者的血脂血压变化、运动耐量、心脏功能、肺功能等指标的影响。方法 选取房颤合并高血压患者96例,随机分为常规治疗组和心脏康复(CR)组,每组各48例患者。常规治疗组给予规范的药物治疗,CR组在规范药物治疗的基础上予运动干预6个月,对比治疗前后2组甘油三酯(TG)、总胆固醇(TC)、低密度脂蛋白(LDL-C)水平,左心房直径(LA)、左心室射血分数(LVEF)、左心室舒张末内径(LVEDd),无氧阈值(AT)、峰值公斤摄氧量(PeakVO₂/kg)、峰值通气量(VEpeak)、每搏输出量(SV)、峰值氧脉搏(PeakO₂pluse),收缩压(SBP)与舒张压(DBP)变化情况,6分钟步行距离(6MWD),以及Borg劳累评估量表评分、焦虑自评量表(SAS)和抑郁自评量表(SDS)评分。结果 2组患者治疗6个月时,TC、TG、LDL-C水平以及SBP、DBP均下降(P<0.05),但2组之间比较,3项血脂指标无统计学差异(P>0.05),而CR组血压显著下降(P<0.05) 。2组患者治疗6个月时,LA、LVEDd减小(P<0.05),而LVEF无变化(P>0.05),CR组LA较常规治疗组缩小(P<0.05)。治疗6个月时,CR组AT、PeakVO₂/kg、VEpeak、SV和PeakO₂plus水平均升高(P<0.05),而常规治疗组的上述相关指标无明显变化(P>0.05)。治疗6个月时,2组患者6分钟步行距离均增加,CR组较常规组增加(P<0.05)。治疗6个月时,CR组Borg劳累评估量表评分、SAS评分及SDS评分均下降,而常规治疗组上述3项评分较治疗前无变化(P>0.05),与常规治疗组比较,CR组上述3项评分降低(P<0.05)。结论 以中等强度运动干预为主导的心脏康复治疗能够降低房颤合并高血压患者的血脂水平、控制血压状态、改善左心房及左心室结构重构,还可以增加该群体的运动耐力及心肺功能、减少消极情绪并提高生活质量。

Objective To evaluate the impact of cardiac rehabilitation on blood lipid level,blood pressure control,exercise endurance,cardiac function, quality of life and lung function in patients with hypertension and atrial fibrillation (AF). Methods This prospective cohort study enrolled 96 patients with AF and hypertension, who were randomly and evenly assigned to the conventional group and the cardiac rehabilitation (CR) group, both treated for at least 6 months. Research indicators included the levels of triglycerides (TG), total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C); left atrial diameter (LA), left ventricular ejection fraction (LVEF), left ventricular end diastolic diameter (LVEDd), anaerobic threshold (AT), peak oxygen uptake volume per kilogram (PeakVO₂/kg), peak ventilation volume (VEpeak), stroke volume (SV), peak oxygen pulse (PeakO₂pluse), changes in blood pressure, 6 minutes walking distance, Borg Fatigue Scale score, Self-Rating Anxiety Scale (SAS) and Self-Rating Depression Scale (SDS) scores. Results At the 6th month of the treatment, the levels of TG, TC, LDL-C, systolic blood pressure (SBP), diastolic blood pressure (DBP) were significantly reduced (P<0.05) in both groups. However, there was no statistical difference among the three blood lipid indicators between the conventional group and the CR group after treatment (P>0.05). Blood pressure dropped significantly(P<0.05) in both groups, especially in the CR group. Meanwhile, after treatment, LA and LVEDd decreased significantly (P<0.05) in both groups, except LVEF. LA decreased significantly (P<0.05) in CR group, compared with conventional group. In addition, AT, PeakVO₂/kg, VEpeak, SV and PeakO₂pluse levels were significantly elevated (P<0.05) in CR group compared with the conventional group after the treatment. There was no significant difference (P>0.05) in the indicators above in the conventional group. Six minutes walking distance were significantly increased (P<0.05) in both groups at 6th month of treatment, compared with the conventional group, the CR group increased more (P<0.05). Borg Fatigue Scale score, SAS score and SDS score were significantly reduced (P<0.05) in CR group at 6th month of treatment, however, there was no statistical difference (P>0.05) in the conventional group compared with that before treatment. The scores above were significantly reduced (P<0.05) in CR group compared with the conventional group after the treatment. Conclusions Cardiac rehabilitation therapy dominated by moderate-intensity exercise intervention can reduce the blood lipid level of atrial fibrillation and hypertension patients, control the blood pressure, improve the left atrial and left ventricular structure reconstruction, increase the exercise endurance, improve cardiopulmonary function, reduce negative emotions and improve the quality of life.

目的 探讨血沉(ESR)对川崎病(KD)冠状动脉病变(CAL)的预测价值。方法 收集 2017 年 5 月— 2021 年 6 月收治入院的KD患儿的临床资料,分析ESR对KD患儿CAL发生的预测作用。结果 纳入272例KD患儿,70例KD患儿合并CAL,202例KD患儿无CAL。KD患儿的ESR升高。单因素分析提示CAL组的ESR低于非CAL组,差异有统计学意义(P＜0.05)。ROC曲线下的面积为0.586,提示ESR可作为CAL的预测因子(P＜0.05)。ESR预测川崎病冠脉病变发生的临界值为76.5 mm/h。二分类Logistic回归分析显示,ESR是KD患儿发生CAL的独立危险因素(P＜0.05),当ESR＜76.5 mm·h^-1时,KD患儿CAL发生风险增加 (OR=2.38,95% CI: 1.25~4.53)。结论 KD急性期的ESR水平可用于预测KD患儿CAL的发生,ESR＜76.5 mm·h^-1时,提示KD患儿可能会出现CAL。

Objective To investigate the predictive value of erythrocyte sedimentation rate (ESR) on coronary artery lesions (CAL) in Kawasaki disease (KD). Methods Clinical data of children with KD admitted to the hospital from May 2017 to June 2021 were collected to analyze the predictive value of ESR on the occurrence of CAL in children with KD. Results Of the 272 enrolled children with KD, 70 children with CAL and 202 children without CAL. ESR was significantly higher in children with KD. Univariate analysis suggested that ESR was lower in the CAL group than in the non-CAL group, and the difference was statistically significant (P<0.05). The area under the ROC curve was 0.586, suggesting that ESR could be a predictor of CAL (P<0.05). The critical value of ESR for predicting the occurrence of CAL in KD was 76.5 mm/h. Dichotomous Logistic regression analysis showed that ESR was an independent risk factor for the development of CAL in children with KD (P<0.05), and the risk of CAL in children with KD was significantly increased when ESR was<76.5 mm/h. (OR = 2.38, 95% CI: 1.25-4.53). Conclusions ESR levels in the acute phase of KD can be used to predict the development of CAL in children with KD, and ESR <76.5 mm/h suggests that children with KD may develop CAL.

非酒精性脂肪性肝病(NAFLD)是世界范围内慢性肝病的一个主要原因,约15%的NAFLD患者会发展为非酒精性脂肪性肝炎、肝纤维化、肝硬化甚至肝癌。目前其发病及进展机制尚未明确,也无有效治疗手段。因此,构建临床前NAFLD动物模型至关重要,有助于为NAFLD提供临床治疗的新方案。本文将系统分析目前已构建的NAFLD动物模型在临床前研究中的局限性,并重点总结和综述基于基因编辑在NAFLD动物模型构建中的应用及研究进展,这对于探讨NAFLD发病机制及新药研发具有重要的临床意义。

Nonalcoholic fatty liver disease (NAFLD) is a leading cause of chronic liver disease worldwide, and about 15% of NAFLD patients will develop into nonalcoholic steatohepatitis, hepatic fibrosis, cirrhosis, and ultimately hepatocellular carcinoma. However, the biological mechanism of the pathogenesis and progression of NAFLD is not fully understood, and there are still no effective or targeted therapies for NAFLD. Therefore, it is an urgent need to construct pre-clinical animal models of NAFLD, which will help to better understand and explore the potential therapeutic strategy in the treatment of NAFLD. Here, we summarize the recent advances and limitations of the established animal models of NAFLD and focus on the potential application and research progress of genome editing for constructing the animal models of NAFLD. There animal models will be very useful to reveal the pathologic mechanism of human NAFLD, and to screen new therapeutic drugs.

目的 观察阶梯式呼吸管理策略在改善感染性休克伴急性肺损伤（ALI）患者中的价值。方法 纳入我院2019年1月—2020年12月收治的感染性休克伴ALI患者共146例为研究对象,数字表法随机分为观察组（73例）与对照组（73例）。对照组常规护理方案,观察组阶梯式呼吸管理,对比干预前后患者心肺功能的差异。结果 观察组平均动脉压、PaCO₂水平低于对照组,心脏指数、中心静脉压、血管外肺水指数、PaO₂与氧合指数高于对照组（P<0.05）;观察组复苏成功率与临床总有效率高于对照组,复苏时间与呼吸平稳时间低于对照组（P<0.05）;观察组气管切开率、有创呼吸机使用率及呼吸机相关性肺炎与气道并发症发生率均低于对照组（P<0.05）。结论 感染性休克并急性肺损伤患者建立阶梯化呼吸管理策略能够显著改善患者的心肺功能,提高临床复苏效果,降低相关并发症风险。

Objective To observe the value of stepwise respiratory management strategy in improving patients with septic shock and acute lung injury（ALI）．Methods A total of 146 patients with septic shock and ALI treated in our hospital from January 2019 to December 2020 were included as the research objects．They were randomly divided into observation group（73 cases）and control group（73 cases）by digital table method．The control group received routine nursing plan,and the observation group received stepwise respiratory management．The differences of cardiopulmonary function before and after the intervention were compared．Results The levels of mean arterial pressure,PaCO₂ in the observation group were significantly lower than those in the control group,cardiac index,central venous pressure,extravascular lung water index,PaO₂ and oxygenation index in the observation group were significantly higher than those in the control group（P<0.05）．The success rate of resuscitation and total clinical effective rate in the observation group were significantly higher than those in the control group,and the resuscitation time and respiratory stability time in the observation group were significantly shorter than those in the control group（P<0.05）．The tracheotomy rate,the rate of using invasive ventilator and the incidence of ventilator associated pneumonia and airway complications in the observation group were lower than those in the control group（P<0.05）．Conclusions The establishment of stepwise respiratory management strategy in patients with septic shock and ALI can significantly improve their cardiopulmonary function,improve the effect of clinical resuscitation and reduce the risk of related complications.