热应激对A549细胞HSP70、XPA修复酶表达的影响

目的研究热应激作用下A549细胞热休克蛋白70（HSP70）和XPA修复酶的表达规律及其可能的意义。方法利用免疫印迹方法（Western blot）检测A549细胞中HSP70、XPA修复酶的表达水平。结果A549细胞接受不同温度（39、41、42、43℃）处理2h后,HSP70表达水平随温度的增高而逐渐增加,并在42℃应激时表达最高,与对照组相比有统计学意义（P〈0.05）;细胞接受42℃应激1～4h,HSP70表达水平随应激时间的增加而递增,与对照组相比,细胞在42℃应激2～4h时HSP70表达显著上调（P〈0.05）。两处理组细胞XPA修复酶表达水平均无明显变化（P〉0.05）。结论高温能诱导HSP70的表达,并呈一定的温度-效应和时间-效应关系,而对XPA修复酶未见明显影响。     

SARS-CoV-2 virus NSP14 Impairs NRF2/HMOX1 activation by targeting Sirtuin 1

Most deaths from the COVID-19 pandemic are due to acute respiratory distress syndrome (ARDS)-related respiratory failure. Cytokine storms and oxidative stress are the major players in ARDS development during respiratory virus infections. However, it is still unknown how oxidative stress is regulated by viral and host factors in response to SARS-CoV-2 infection. Here, we found that activation of NRF2/HMOX1 significantly suppressed SARS-CoV-2 replication in multiple cell types by producing the metabolite biliverdin, whereas SARS-CoV-2 impaired the NRF2/HMOX1 axis through the action of the nonstructural viral protein NSP14. Mechanistically, NSP14 interacts with the catalytic domain of the NAD-dependent deacetylase Sirtuin 1 (SIRT1) and inhibits its ability to activate the NRF2/HMOX1 pathway. Furthermore, both genetic and pharmaceutical evidence corroborated the novel antiviral activity of SIRT1 against SARS-CoV-2. Therefore, our findings reveal a novel mechanism by which SARS-CoV-2 dysregulates the host antioxidant defense system and emphasize the vital role played by the SIRT1/NRF2 axis in host defense against SARS-CoV-2.     

晚期早产与学龄前期儿童发育性运动协调障碍的相关研究

目的探讨晚期早产儿与学龄前期发生发育性运动协调障碍(developmental coordination disorder,DCD)的关系,为能进行有效干预提供依据。方法 2012年6-12月于江苏省苏南、苏中、苏北随机整群抽取5个城市25所幼儿园中6 811名3~6岁学龄前儿童,对儿童一般健康状况和出生史进行问卷调查,运用儿童运动成套评估工具第2版(Movement Assessment Battery for Children-Second Edition,MABC-2)对递交有效问卷的6 155名儿童进行运动协调能力测试,研究不良出生史对儿童运动协调能力发展的损伤。结果 6 147名儿童完成所有测试,晚期早产儿DCD及手灵巧度低下发生率与足月儿相比差异无统计学意义,但动静态平衡能力显著低于足月儿(P=0.014),目标抓握能力低于足月儿(P=0.051)。结论晚期早产可损伤儿童学龄前期动静态平衡和目标抓握能力,其原因可能与脑发育过程中不同部位损伤有关。     

儿童孤独症谱系障碍早期筛查管理模式研究

目的通过三级网络进行早期筛查早期诊断儿童孤独症谱系障碍(ASD)的管理模式研究,探讨ASD早期发现的网络筛查程序及管理流程,为ASD儿童获得早期干预提供有利的条件。方法成立市级ASD早期诊断管理中心,建立基层社区筛查一级网络及管理流程,进行社区筛查管理技术的指导及培训,再结合二、三级的筛查与诊断给予确诊。结果 1)社区一级网络ASD初筛率由2013年的20.19%上升到2014年的33.68%,呈逐年提高趋势,阳性率维持在4‰~6.0‰;确诊率由0.41‰上升到0.95‰。2)ASD早期诊断中心2年干预疑似患儿38例。结论三级网络ASD早期筛查的管理模式提高了社区儿保医生对ASD的初筛率,有利于ASD儿童的早期发现,为ASD儿童早期干预提供了最佳时期,是切实可行的ASD早期筛查管理模式。     

关键性技能训练法干预儿童孤独症谱系障碍的效果研究

目的 分析关键性技能训练法(PRT)对孤独症谱系障碍(ASD)患儿的干预效果,为ASD儿童的康复治疗提供参考。方法 选取2019年1—12月在郑州大学第三附属医院儿童发育行为科诊断为ASD的2~5岁儿童46例,随机分为常规组和PRT组,每组各23例。两组干预前及干预3个月后均采用孤独症行为量表(ABC)、儿童孤独症评定量表(CARS)进行评估。结果 常规组治疗3个月后ABC总分、交往能区、躯体运动能区、生活自理能区分数均降低(t=5.505、3.102、3.425、4.058,P<0.05)。PRT组治疗3个月后ABC总分、感觉能区、交往能区、躯体运动能区、语言能区、生活自理能区及CARS总分均降低(t=6.087、2.861、4.618、5.509、5.621、6.578、7.398,P<0.05)。PRT组ABC总分、交往能区、躯体运动能区、语言能区、生活自理能区及CARS总分分数差值显著高于常规组(t=8.965、5.488、3.761、5.508、2.612、5.618,P<0.05)。结论 PRT治疗可有效改善ASD儿童的社交、躯体运动、语言、生活能力等。     

加味逍遥散对慢性束缚应激BALB/C小鼠行为学变化的调节研究

目的:研究加味逍遥散对慢性束缚应激BALB/C小鼠行为学变化的影响。方法:将50只8w～10w龄的BALB/C小鼠随机分为正常对照组、模型组、逍遥散组、加味逍遥散低剂量组、加味逍遥散高剂量组5组,每组10只。用特制束缚筒束缚14d,每天6h的方法制备小鼠慢性束缚模型。应激期外小鼠自由饮水和摄食,正常对照组和模型组给予生理盐水1mL/100g,2次/d;逍遥散组、加味逍遥散低剂量组、加味逍遥散高剂量组按1mL/100g体重分别给予0.3g/mL、0.38g/mL、0.76g/mL的中药水煎液,2次/d。给药结束后,采用旷场实验和鼠尾悬挂实验观察小鼠行为学变化。结果:与正常对照组比较,模型组正中央格停留时间延长(P<0.05),6min内不动时间延长(P<0.01),穿格次数减少(P<0.01),修饰次数有所减少,但无显著性差异;与模型组比较,逍遥散组及加味逍遥散低、高剂量组正中央格停留时间缩短(P<0.01),穿格次数增加(P<0.01),6min内不动时间缩短(P<0.01),修饰次数增加,但无显著性差异;加味逍遥散高剂量组与逍遥散组比较,穿格次数增加(P<0.05)。结论:加味逍遥散与逍遥散对慢性束缚应激小鼠行为学均有所改善,但加味逍遥散的调节作用更佳。     

海南省0~6岁儿童孤独症谱系障碍的现况调查及影响因素分析

目的 了解海南省0~6岁儿童孤独症谱系障碍的患病情况及其影响因素。方法 抽查海南省18个市（县）0~6岁儿童37 862人,采用儿童发育问题预警征象调查表筛查,再由专科医师现场诊断,采用一般描述统计、χ²检验、非条件logistic回归分析孤独症现况及影响因素。结果 共诊断235例孤独症儿童,总患病率为0.62%,其中男童为0.99%,女童为0.17%,男童高于女童（χ²=101.91,P=0.000）。随年龄增长孤独症患病率上升（χ²=288.62,P=0.000）。城市孤独症患病率高于其他地区,差异有统计学意义（χ²=114.77,P=0.000）。是否足月、新生儿窒息、父亲性格、父亲有嚼槟榔或吸烟习惯、母孕期总体情绪状态以及母亲人流史为孤独症的影响因素。结论 海南省0~6岁儿童孤独症谱系障碍的患病率居国内较高水平并受遗传因素、孕产过程、父母在孕前及孕期不良行为、习惯等综合因素的影响。     

Changes in the prevalence of comorbidity of mental and physical disorders in Singapore between 2010 and 2016

INTRODUCTIONFew studies have examined the changes in the prevalence of comorbidity of mental and physical disorders in recent years. The present study sought to examine whether the prevalence of comorbidity of mental and physical disorders in Singapore showed any changes between 2010 and 2016.METHODSWe extracted data from two repeated nationally representative cross-sectional surveys conducted among resident adults aged ≥ 18 years in Singapore. Significant changes were tested using pooled multinomial logistic regression analyses.RESULTSThe prevalence of comorbid mental and physical disorders increased significantly from 5.8% in 2010 to 6.7% in 2016. Among those with physical disorders, there were significant increases over time in the prevalence of comorbid generalised anxiety disorder (GAD) (0.1% vs. 0.4%) and obsessive-compulsive disorder (OCD) (1.4% vs. 3.9%) in diabetes mellitus, and alcohol dependence in cardiovascular disorders (0.1% vs. 1.3%). Among those with mental disorders, there were significant increases over time in the prevalence of comorbid diabetes mellitus in OCD (4.1% vs. 10.9%), cancer in major depressive disorder (0.4% vs. 2.4%), and cardiovascular disorders in GAD (0.4% vs. 6.7%) and alcohol dependence (0.9% vs. 11.8%). Significant changes in the overall prevalence of comorbid mental and physical disorders were also observed across age group, education and employment status.CONCLUSIONThe prevalence of comorbid mental and physical disorders increased significantly over time. This finding supports the need for more appropriate clinical management with better integration between mental health and general medical care professionals across all aspects of the healthcare system to treat this comorbidity in Singapore.     

罗哌卡因腹横肌平面阻滞对腹腔镜子宫肌瘤剔除术患者镇痛效果及应激反应的影响

目的 探讨罗哌卡因腹横肌平面(TAP)阻滞对腹腔镜子宫肌瘤剔除术患者镇痛效果及应激反应的影响.方法 选取2019年10月-2020年5月于该院行腹腔镜子宫肌瘤剔除术的患者90例作为研究对象,采用随机数字表法分为A组(n=45)和B组(n=45).A组在术毕实施静脉镇痛,B组在麻醉诱导时采用罗哌卡因TAP阻滞.对比两组麻...