城市居家老年人宜老环境自我报告评估指标的构建

目的 构建城市居家老年人宜老环境自我报告评估指标,为了解城市老年人居家环境的质量水平和相关服务需求提供评价工具.方法 以世界卫生组织老年友好城市指南作为理论框架,在文献回顾和质性访谈的基础上形成草稿.采用德尔菲法对20名专家进行2轮咨询.结果 2轮专家咨询问卷有效回收率分别为90.91％、90.00％;第2轮专家咨询的权威系数为0.865,专家意见协调系数为0.305～0.671;最终确定的指标体系包括户外空间和建筑、交通、家庭住宅、社会交往和参与、社区服务和信息与通讯6项一级指标,84项二级指标.结论 城市居家老年人宜老环境自我报告评估指标有较好的专家认可度,可作为评价中国城市居家老年人环境质量的工具.     

长链非编码RNA反义RNA 1靶向微小RNA-501-3p对食管癌细胞恶性生物学行为影响的实验研究

目的探讨长链非编码RNA(lncRNA)胸腺生成素反义RNA 1(TMPO-AS1)对食管癌细胞恶性生物学行为的影响及其机制。方法2016年6月至2019年12月,实时荧光定量聚合酶链反应(RT-qPCR)检测20例食管癌组织和癌旁组织中lncRNA TMPO-AS1和微小RNA(miR)-501-3p的水平,食管癌Eca109细胞分为lncRNA TMPO-AS1干扰组(转染si-NC和si-TMPO-AS1);miR-501-3p过表达组(转染miR-NC和miR-501-3p);lncRNA TMPO-AS1过表达组(转染pcDNA和pcDNA-TMPO-AS1);lncRNA TMPO-AS1和miR-501-3p共抑制组(转染si-TMPO-AS1+anti-miR-NC和si-TMPO-AS1+anti-miR-501-3p)。噻唑蓝(MTT)法、流式细胞术和Transwell实验分别检测食管癌Eca109细胞增殖、凋亡率、细胞迁移和侵袭能力,蛋白质印迹法(Western blot)检测相关蛋白水平,双荧光素酶报告系统验证lncRNA TMPO-AS1与miR-501-3p的调控关系。两组间比较采用独立样本t检验,多组间比较采用单因素方差进行分析。结果食管癌组织组中的lncRNA TMPO-AS1水平(2.64±0.26)高于癌旁组织(1.00±0.09,t=26.657,P<0.05),miR-501-3p水平(0.44±0.04)低于癌旁组织(1.00±0.07,t=31.063,P<0.05);干扰lncRNA TMPO-AS1的Eca109细胞24 h增殖(0.36±0.03)低于si-NC组(0.39±0.03,t=2.121,P<0.05),48 h增殖(0.45±0.04)低于si-NC组(0.75±0.07,t=11.163,P<0.05),72 h增殖(0.57±0.05)低于si-NC组(1.16±0.09,t=17.191,P<0.05),迁移细胞数[(54.14±5.65)个]低于si-NC组[(113.02±9.87)个,t=15.531,P<0.05],侵袭细胞数[(47.69±5.01)个]低于si-NC组[(96.32±9.88)个,t=13.169,P<0.05],细胞凋亡率[(22.15±2.22)%]高于si-NC组[(6.98±0.69)%,t=19.576,P<0.05];过表达miR-501-3p的Eca109细胞48 h增殖(0.51±0.05)低于miR-NC组(0.77±0.07,t=9.067,P<0.05),72 h增殖(0.65±0.06)低于miR-NC组(1.15±0.09,t=13.867,P<0.05),迁移细胞数[(61.23±6.33)个]低于miR-NC组[(115.25±9.25)个,t=14.458,P<0.05],侵袭细胞数[(53.14±5.33)]低于miR-NC组[(98.32±8.47)个,t=13.543,P<0.05],细胞凋亡[(19.58±1.74)%]高于miR-NC组[(7.23±0.77)%,t=19.471,P<0.05],差异均有统计学意义。结论lncRNA TMPO-AS1通过靶向miR-501-3p促进食管癌细胞的恶性生物学行为,可被视为食管癌患者的潜在治疗靶标。     

Evaluating bowel enterotomy closures in simulated deep body cavities using the reversing half-hitch alternating post and square knots: a randomized controlled trial

BackgroundSquare knots can be difficult to construct in deep body cavities. The reversing half-hitch alternating post (RHAP) surgical knot has noninferior tensile strength and performance characteristics in deep body cavities. We compared the enterotomy repairs of novice learners in simulated deep body cavities using RHAP versus square knots after proficiency-based training.MethodsUndergraduate students were randomized to RHAP (n = 10) or square knot (n = 10) groups and trained to defined proficiency. They then performed hand-sewn enterotomy repairs of cadaveric porcine small bowels on flat surfaces and in simulated deep body cavities. We recorded time to knot-tying proficiency and to enterotomy repair, and burst pressures for the repair.ResultsMean time-to-proficiency in knot tying was equivalent between the RHAP and square knot groups (23 [standard deviation (SD) 3] v. 21 [SD 2] min, p = 0.33). Mean time for enterotomy repair in deep cavities was shorter for the RHAP group (16 [SD 2] min v. 21 [SD 1] min, p = 0.02). Mean burst pressures for enterotomy repair were equivalent on flat surfaces (128 [SD 41] v. 101 [SD 36] mm Hg, p = 0.31), and were significantly higher for the RHAP group in simulated deep body cavities (32 [SD 13] v. 105 [SD 37] mm Hg, p = 0.05).ConclusionThe RHAP knots appear to have superior performance versus square knots when tied in a deep body cavity by novice learners. Future work should focus on demonstrating the clinical relevance and broad utility of the RHAP knot in abdominal surgery. Both knot types should be taught to novice learners.     

An Orthotopic Liver Transplantation Patient Survived Without Hepatic Artery Flow Due to Thrombosis: A Case Report

BackgroundHepatic artery thrombosis (HAT), a serious complication after orthotopic liver transplantation, almost always leads to morbidity and mortality without urgent revascularization or retransplantation, especially if HAT occurs within a few days after transplantation.Case PresentationHerein we describe a case report of an orthotopic liver transplantation patient surviving without hepatic artery flow due to HAT on postoperative day 1. Reanastomosis, thrombectomy, and intra-arterial thrombolysis were performed, but only retrograde arterial flow by Doppler ultrasound, not by angiography, could be demonstrated in the hepatic artery. This case report is in compliance with the Declaration of Helsinki and the Declaration of Istanbul.ConclusionBased on the evidence from this patient, we believe that patients with failed revascularization can experience a long-term survival with conservative treatment. Retransplantation should be evaluated based on laboratory findings because graft function in individual patients can recover.     

北京地区老年髋部脆性骨折患者术后抗骨质疏松症药物治疗现状及影响因素分析

目的 评估北京地区老年髋部脆性骨折患者术后抗骨质疏松症药物（AOM）治疗现状并探讨其影响因素。方法 横断面研究。纳入2018年11月—2019年11月北京积水潭医院、北京医院、北京安贞医院、北京市昌平区医院、北京市顺义区医院、北京市房山区良乡医院收治的髋部脆性骨折患者1 963例,总结其人口学特征,并收集患者入院后30、120、365 d的临床资料,AOM治疗及健康基本补充剂使用情况。通过单因素和多因素logistic回归分析AOM治疗的影响因素。结果 1 963例老年髋部脆性骨折患者,住院时年龄65~102（79.3±7.2）岁,≥80岁患者占56.7%（1 113/1 963）;男性患者占30.8%（604/1 963）,女性患者占69.2%（1 359/1 963）;股骨颈骨折846例,股骨粗隆间骨折1 077例,股骨粗隆下骨折40例。综合3个时间点,在髋部骨折后1年内,33.0%（648/1 963）的患者接受过AOM治疗,71.0%（1 394/1 963）的患者使用过健康基本补充剂。入院后30、120、365 d患者AOM治疗率分别为23.0%（451/1 963）、17.9%（353/1 963）、21.0%（412/1 963）,健康基本补充剂使用率分别为59.0%（1 158/1 963）、45.0%（883/1 963）、38.0%（746/1 963）。单因素分析结果显示,年龄≥80岁[粗比值比（OR）=0.645,95%可信区间（CI） 0.495~0.840]、男性（粗OR=0.760,95% CI 0.581~0.996）、共管模式（粗OR=3.025,95% CI 0.973~9.405）、居住地农村（粗OR=0.523,95% CI 0.388~0.704）、AOM服用史（粗OR=7.612,95% CI 2.227~26.020）、既往骨质疏松症史（粗OR=5.065,95% CI 3.149~8.147）、骨质疏松评估（粗OR=1.379,95% CI 1.105~2.451）是AOM治疗的影响因素。多因素分析结果显示,年龄≥80岁（调整后OR=0.618,95% CI 0.488~0.781）、男性（调整后OR=0.716,95% CI 0.565~0.908）、居住地农村（调整后OR=0.492,95% CI 0.375~0.645）是AOM治疗的危险因素;共管模式（调整后OR=2.632,95% CI 1.004~6.897）、AOM服用史（调整后OR=4.870,95% CI 2.080~11.402）、既往骨质疏松症史（调整后OR=4.804,95% CI 3.253~7.096）、骨质疏松评估（调整后OR=1.393,95% CI 1.041~1.862）是AOM治疗的保护因素。结论 北京地区老年髋部脆性骨折患者的AOM治疗率偏低。年龄≥80岁、男性、在农村居住的髋部脆性骨折患者治疗率较低,可采取共管模式,术前进行骨质疏松诊断与评估,提高骨质疏松治疗率。     

尺骨截骨位置不同对手术治疗儿童陈旧性孟氏骨折预后的影响

目的 探讨手术治疗儿童陈旧性孟氏骨折尺骨截骨点位置不同对疗效的影响。方法 回顾性队列研究。纳入2015年6月—2021年6月安徽省儿童医院骨科收治的68例儿童陈旧性孟氏骨折患者的临床资料,其中男42例、女26例,年龄3~12（6.6±2.4）岁。受伤至手术时间1~60个月,平均8.6个月。BadoⅠ型骨折60例,Ⅲ型8例。患儿均采用尺骨近端截骨矫形治疗,术中选择尺骨畸形最明显处截断尺骨,按照截骨点至尺骨近端间距占尺骨全长的比例不同分为3组,A组（占比≤25%）27例、B组（25%<占比<30%）20例、C组（占比≥30%）21例。观察指标：（1）对比3组患儿临床基线资料。（2）对比3组患儿手术时间,观察术后患肘肱桡关系恢复情况,尺骨截骨处愈合情况,以及并发症发生情况。（3）术后定期随访。取出内固定前,测量对比3组患儿肘关节旋前、旋后、伸肘、屈肘角度,采用Kim肘关节功能评分表评估并对比3组患儿肘关节功能;拆除内固定后,采用影像学Nakamura分级标准评估并对比3组患儿肘关节功能。结果 （1）3组患儿性别、年龄、患肢侧别、骨折分型、受伤至手术时间、术前患肢肘关节活动度等基线资料比较,差异均无统计学意义（P值均>0.05）。（2）3组患儿均顺利完成手术,A组手术时间为（100.6±31.7）min,B组为（133.0±24.2）min,C组为（94.9±28.6）min,差异无统计学意义（F=1.02,P=0.367）。术后第3天肘关节正侧位X线片示肱桡关系均恢复正常。A组有1例术后切口感染,予以抗感染治疗后愈合。68例患儿均获得随访,随访时间6~36个月,平均8.7个月。A组术后发生肱桡关节再脱位3例、半脱位3例,B组发生半脱位3例,C组发生半脱位2例、尺骨延迟愈合1例;3组间并发症发生情况比较,差异均无统计学意义（P值均>0.05）。3组患儿尺骨截骨处愈合时间比较,差异无统计学意义（F=0.01,P=0.989）。（3）3组患儿取出内固定前,肘关节旋前、旋后、伸肘、屈肘角度,以及Kim肘关节功能评定比较,差异均无统计学意义（P值均>0.05）。拆除内固定后,影像学Nakamura分级评定肘关节功能比较,3组间差异无统计学意义（Z=1.73,P=0.422）。结论 儿童陈旧性孟氏骨折采用尺骨近端截骨矫形治疗,术中选择尺骨畸形最明显处截断尺骨,尺骨截骨点位置的不同对患儿预后无明显影响。     

Protective effect of pinocembrin from Penthorum chinense Pursh on hepatic ischemia reperfusion injury via regulating HMGB1/TLR4 signal pathway

Hepatic ischemia–reperfusion injury (HIRI) is of common occurrence during liver surgery and transplantation. Pinocembrin (PIN) is a kind of flavonoid monomer extracted from the local traditional Chinese medicine Penthorum chinense Pursh (P. chinense). However, the effect of PIN on HIRI has not determined. We investigated the protective effect and potential mechanism of PIN against HIRI. Model mice were subjected to partial liver ischemia for 60 min, experimental mice were pretreated with PIN orally for 7 days, and H₂O₂-induced oxidative damage model in AML12 hepatic cells was established in vitro. Histopathologic analysis and serum biochemical levels revealed that PIN had hepatoprotective activities against HIRI. The variation of GSH, SOD, MDA, and ROS levels indicated that PIN treatments attenuated oxidative stress in tissue. PIN pretreatment obviously ameliorated apoptosis, and restrained the expression of HMGB1 and TLR4 in vivo. In vitro, compared with H₂O₂ group, the contents of ROS, mitochondrial membrane potential, apoptotic cells, and Bcl-2 protein were decreased, while the Bax protein expression was increased. Moreover, HMGB-1 small interfering RNA test and western blotting showed that PIN pretreatment reduced HMGB1 and TLR4 protein levels. In conclusion, PIN pretreatment effectively protected hepatocytes from HIRI and inhibited the HMGB1/TLR4 signaling pathway.     

Berberine plays a cardioprotective role by inhibiting macrophage Wnt5a/β-catenin pathway in the myocardium of mice after myocardial infarction

Myocardial infarction (MI) is one of the diseases with high fatality rate. Berberine (BBR) is a monomer compound with various biological functions. And some studies have confirmed that BBR plays an important role in alleviating cardiomyocyte injury after MI. However, the specific mechanism is unclear. In this study, we induced a model of MI by ligation of the left anterior descending coronary artery and we surprisingly found that BBR significantly improved ventricular remodeling, with a minor inflammatory and oxidative stress injury, and stronger angiogenesis. Moreover, BBR inhibited the secretion of Wnt5a/β-catenin pathway in macrophages after MI, thus promoting the differentiation of macrophages into M2 type. In summary, BBR effectively improved cardiac function of mice after MI, and the potential protective mechanism was associated with the regulation of inflammatory responses and the inhibition of macrophage Wnt5a/β-catenin pathway in the infarcted heart tissues. Importantly, these findings supported BBR as an effective cardioprotective drug after MI.