期刊文献+
共找到109篇文章
< 1 2 6 >
每页显示 20 50 100
尿蛋白/肌酐比与24-h尿蛋白定量在肾小球疾病尿蛋白水平测量中的一致性评价
1
作者 陈香慧 贾婷 +8 位作者 杨莹 李艳 魏世卓 王佳琪 冯莹莹 马芳霞 陈钊 王莉 付荣国 《首都医科大学学报》 CAS 北大核心 2024年第5期831-837,共7页
目的评价尿蛋白/肌酐比值(protein/creatinine ratio,PCR)与24-h尿蛋白定量(24-h urine total protein,24-h UTP)在肾小球疾病患者蛋白尿定量检测中的一致性。方法选取2024年3月至2024年7月在西安交通大学第二附属医院住院的急、慢性肾... 目的评价尿蛋白/肌酐比值(protein/creatinine ratio,PCR)与24-h尿蛋白定量(24-h urine total protein,24-h UTP)在肾小球疾病患者蛋白尿定量检测中的一致性。方法选取2024年3月至2024年7月在西安交通大学第二附属医院住院的急、慢性肾小球肾炎以及肾病综合征等肾小球疾病患者作为研究对象,收集患者的年龄、性别、原发病、尿量、血常规、肝肾功能、血脂等临床资料,并记录尿常规、晨尿PCR以及24-h UTP等数据。多元线性回归筛选可显著影响PCR和24-h UTP结果的指标,据其对患者进行分组,并应用Bland-Altman分析以及组内相关性系数(intraclass correlation efficient,ICC)分别评价各组中两种测量指标的一致性。结果本研究共纳入患者220例,其中男性129例,女性91例,平均年龄(53.21±17.68)岁,PCR与24-h UTP间存在显著正相关(Spearman相关系数为0.83,P<0.001)。多元线性回归提示,尿量及血清白蛋白(albumin,ALB)水平可影响24-h UTP结果,而PCR结果不受尿量的影响,但却受到估算肾小球滤过率(estimated glomerular filtration rate,eGFR)以及ALB的影响。Bland-Altman分析显示,在24-h尿量1500~2500 mL、eGFR在30~89 mL·(min·1.73 m^(2))^(-1),或者ALB≥30g/L的患者中,两个指标具有较好的一致性。应用ICC进一步对各组中两个指标的一致性进行了定量,提示血ALB水平和尿量可能是影响两个指标一致性的因素。结论尿PCR和24-h UTP两种蛋白尿检测指标尽管具有高度的相关性,但其一致性及互相可替代性则需要结合患者的尿量、血清白蛋白以及eGFR水平等来进行综合的判断。 展开更多
关键词 尿蛋白/肌酐比值 24-h尿蛋白定量 一致性
下载PDF
Association between Meeting 24-Hour Movement Guidelines and Psychological Features of Chinese Emerging Adults
2
作者 Yanjie Zhang Jin Kuang +2 位作者 Xun Luo Mengxian Zhao Xiaolei Liu 《International Journal of Mental Health Promotion》 2024年第5期399-406,共8页
Background:Emerging adulthood is a pivotal life stage,presenting significant psychological and social changes,such as decreased sociability,depression,and other mental health problems.Previous studies have associated ... Background:Emerging adulthood is a pivotal life stage,presenting significant psychological and social changes,such as decreased sociability,depression,and other mental health problems.Previous studies have associated these changes with an unhealthy lifestyle.The 24-h movement guidelines for healthy lifestyles have been developed to promote appropriate health behaviors and improve individual wellness.However,the relationship between adherence to the 24-h movement guidelines and different characteristics of Chinese emerging adults is yet to be explored.This cross-sectional study aimed to investigate the association between adherence to the 24-h movement guidelines and four characteristics(self-exploration,instability,possibilities,and responsibility)of Chinese emerging adults.Methods:Overall,1,510 Chinese emerging adults aged 18–29 years were included in this study.Each participant completed a self-administered questionnaire that included questions on adherence to the 24-h movement guidelines(physical activity,sedentary behavior,and sleep)and the inventory of dimensions of emerging adulthood.Multivariable logistic regression analysis was employed to investigate the associations between adherence to the 24-h movement guidelines and each of the four characteristics.Results:The proportion of participants who adhered to the 24-h movement guidelines was 31.72%.Multiple regression analysis revealed a significantly negative relationship between adhering to more guidelines and instability(β=−0.51,p<0.001).A statistically significant association was observed between instability and meeting only sedentary behavior(β=−1.27,95%confidence interval[CI]:[−2.32,−0.24],p=0.02),sedentary behavior+sleep(β=−1.30,95%CI:[−2.24,−0.35],p<0.01),and physical activity+sedentary behavior(β=−1.08,95%CI:[1.94,−0.21],p=0.02)guidelines.Further,positive and significant associations were observed between possibilities and meeting the guidelines for only physical activity(β=0.70,95%CI:[0.14,1.27),p=0.01),only sleep(β=0.61,95%CI:[0.01,1.21],p=0.04),physical activity+sedentary behavior(β=0.56,95%CI:[0.04,1.07),p=0.01),and physical activity+sleep(β=0.76,95%CI:[0.23,1.27],p=0.01).Conclusions:These findings suggest that adherence to the 24-h movement guidelines was associated with instability in Chinese emerging adults.Future studies are warranted to verify our findings to highlight the importance of maintaining a heath lifestyle to promote health in emerging adulthood. 展开更多
关键词 24-h movement behavior physical activity sedentary behavior SLEEP psychological health emerging adults
下载PDF
Dynamic Changes of Nitrate Reductase Activity within 24 Hours
3
作者 杜瑛 王子龙 《Agricultural Science & Technology》 CAS 2012年第11期2284-2286,共3页
[Objective] The research aimed to study the circadian rhythm of nitrate re- ductase activity (NRA) in plant. [Method] The wheat plants at heading stage were used as the materials for the measurement of dynamic chang... [Objective] The research aimed to study the circadian rhythm of nitrate re- ductase activity (NRA) in plant. [Method] The wheat plants at heading stage were used as the materials for the measurement of dynamic changes of nitrate reductase activity (NRA) within 24 h under the conditions of constant high temperature. [Resulti The fluctuation of NRA in wheat changed greatly from 20:00 pm to 11:00 am. The enzyme activity remained constant, but at 14:00 the enzyme activity was the high- est, higher than all the other time points except the enzyme activity measured at11:00. The enzyme activity was the lowest of 17:00, which was lower than all the other time points except the enzyme activity measured at 2:00. [Conclusion] There were autonomous rhythm changes of NRA in wheat in a certain degree. 展开更多
关键词 WHEAT 24 h Nitrate reductase activity Solution culture
下载PDF
Associations between meeting 24-hour movement guidelines and quality of life among children and adolescents with autism spectrum disorder 被引量:2
4
作者 Chuidan Kong Aiguo Chen +9 位作者 Sebastian Ludyga Fabian Herold Sean Healy Mengxian Zhao Alyx Taylor Notger G.Muller Arthur F.Kramer Sitong Chen Mark S.Tremblay Liye Zou 《Journal of Sport and Health Science》 SCIE CSCD 2023年第1期73-86,共14页
Background:The Canadian 24-hour movement behavior(24-HMB)guidelines suggest that a limited amount of screen time use,an adequate level of physical activity(PA),and sufficient sleep duration are beneficial for ensuring... Background:The Canadian 24-hour movement behavior(24-HMB)guidelines suggest that a limited amount of screen time use,an adequate level of physical activity(PA),and sufficient sleep duration are beneficial for ensuring and optimizing the health and quality of life(QoL)of children and adolescents.However,this topic has yet to be examined for children and adolescents with autism spectrum disorder(ASD)specifically.The aim of this cross-sectional observational study was to examine the associations between meeting 24-HMB guidelines and several QoLrelated indicators among a national sample of American children and adolescents with ASD.Methods:Data were taken from the 2020 U.S.National Survey of Children’s Health dataset.Participants(n=956)aged 617 years and currently diagnosed with ASD were included.The exposure of interest was adherence to the 24-HMB guidelines.Outcomes were QoL indicators,including learning interest/curiosity,repeating grades,adaptive ability,victimization by bullying,and behavioral problems.Categorical variables were described with unweighted sample counts and weighted percentages.Age,sex,race,preterm birth status,medication,behavioral treatment,household poverty level,and the educational level of the primary caregivers were included as covariates.Odds ratio(OR)and 95%confidence interval(95%CI)were used to present the strength of association between adherence to 24-HMB guidelines and QoL-related indicators.Results:Overall,452 participants(45.34%)met 1 of the 3 recommendations,216(22.65%)met 2 recommendations,whereas only 39 participants(5.04%)met all 3 recommendations.Compared with meeting none of the recommendations,meeting both sleep duration and PA recommendations(OR=3.92,95%CI:1.639.48,p<0.001)or all 3 recommendations(OR=2.11,95%CI:1.034.35,p=0.04)was associated with higher odds of showing learning interest/curiosity.Meeting both screen time and PA recommendations(OR=0.15,95%CI:0.040.61,p<0.05)or both sleep duration and PA recommendations(OR=0.24,95%CI:0.070.87,p<0.05)was associated with lower odds of repeating any grades.With respect to adaptive ability,participants who met only the PA recommendation of the 24-HMB were less likely to have difficulties dressing or bathing(OR=0.11,95%CI:0.020.66,p<0.05)than those who did not.For participants who met all 3 recommendations(OR=0.38,95%CI:0.150.99,p=0.05),the odds of being victimized by bullying was lower.Participants who adhered to both sleep duration and PA recommendations were less likely to present with severe behavioral problems(OR=0.17,95%CI:0.040.71,p<0.05)than those who did not meet those guidelines.Conclusion:Significant associations were found between adhering to 24-HMB guidelines and selected QoL indicators.These findings highlight the importance of maintaining a healthy lifestyle as a key factor in promoting and preserving the QoL of children with ASD. 展开更多
关键词 24-hour movement guidelines Autism spectrum disorder Physical activity Quality of life
下载PDF
基于等时替代模型的大学生24h活动行为与健康体适能的关系 被引量:1
5
作者 宋云峰 李凯欣 +1 位作者 谭思洁 齐玉刚 《河南师范大学学报(自然科学版)》 CAS 北大核心 2024年第3期150-156,I0008,共8页
[目的]运用成分等时替代模型探索在校大学生24 h活动行为与健康体适能之间的关系,为改善大学生人群的体质健康水平提供参考.[方法]选取天津某高校223名在校学生为研究对象.使用三维加速度计(ActiGraph GT3X+)记录学生每天24 h活动行为,... [目的]运用成分等时替代模型探索在校大学生24 h活动行为与健康体适能之间的关系,为改善大学生人群的体质健康水平提供参考.[方法]选取天津某高校223名在校学生为研究对象.使用三维加速度计(ActiGraph GT3X+)记录学生每天24 h活动行为,包括中高强度身体活动(MVPA)、低强度身体活动(LPA)、久坐时间(SB)和睡眠(SLP)时间.使用成分分析方法分析探讨各成分与健康体适能的关系,并以15 min建立等时替代模型预测各活动行为替代后对结局变量产生的影响.[结果]仅MVPA与其他行为之间的替代与反替代均有统计学意义(P<0.05),其中MVPA和SB相互替代时变化幅度最大;LPA替代SB时,BMI指数、握力和坐位体前屈均显著升高,反之仅握力显著下降;LPA替代SLP时,BMI指数显著上升,反之显著下降;SLP替代SB时,BMI指数和腰围显著下降,反之均显著升高,并且升高的幅度更明显.[结论]MVPA是影响大学生群体体质健康发展的主要因素,在保证适度睡眠的同时,将SB转化为MVPA可能更有意义. 展开更多
关键词 24 h活动行为 成分分析 等时替代 健康体适能
下载PDF
The correlation of spot urinary protein-to-creatinine ratio with 24-h urinary protein excretion in various glomerulopathies 被引量:1
6
作者 Amber Raza Syed Haider Nawaz +2 位作者 Rahma Rashid Ejaz Ahmed Muhammed Mubarak 《World Journal of Nephrology》 2023年第5期159-167,共9页
BACKGROUND Proteinuria is an important and well-known biomarker of many forms of kidney injury.Its quantitation is of particular importance in the diagnosis and management of glomerular diseases.Its quantification can... BACKGROUND Proteinuria is an important and well-known biomarker of many forms of kidney injury.Its quantitation is of particular importance in the diagnosis and management of glomerular diseases.Its quantification can be done by several methods.Among these,the measurement of 24-h urinary protein excretion is the gold standard method.However,it is cumbersome,time-consuming,and inconvenient for patients and is not completely foolproof.Many alternative methods have been tested over time albeit with conflicting results.Among the latter,the measurement of urine protein-to-creatinine ratio(uPCR)in singlevoided urinary samples is widely used.The majority of studies found a good correlation between uPCR in single urine samples with 24-h urinary protein estimation,whereas others did not.AIM To investigate the correlation of spot uPCR with 24-h urinary protein estimation in patients suffering from different forms of glomerulopathies at a single largevolume nephrological center in Pakistan.METHODS This cross-sectional,observational study was conducted at the Department of Nephrology,Sindh Institute of Urology and Transplantation,Karachi,Pakistan from September 2017 to March 2018.All newly presenting adult patients with proteinuria who were being investigated for suspected glomerulonephritis and persistent proteinuria with ages between 18 to 60 years were enrolled.All patients were given detailed advice regarding 24-h urine collection starting at 7:00 AM for total protein and creatinine excretion estimations.A spot urine sample was collected the next day at the time of submission of a 24-h urine sample for measuring uPCR along with a blood sample.The data of patients were collected in a proforma.SPSS version 20.0 was used for statistical analysis.RESULTS A total of 157 patients were included.Their mean age was 30.45±12.11 years.There were 94(59.8%)males and 63(40.2%)females.The mean 24-h urinary protein excretion was 3192.78±1959.79 mg and the mean spot uPCR was 3.16±1.52 in all patients.A weak but significant correlation was observed between spot uPCR and 24-h urinary protein excretion(r=0.342,P=0.01)among all patients.On subgroup analysis,a slightly better correlation was found in patients older than 47 years(r=0.78),and those with body mass index>25 kg/m2(r=0.45).The Bland and Altman's plot analysis comparing the differences between spot uPCR and 24-h protein measurement also showed a wide range of the limits of agreement between the two methods.CONCLUSION Overall,the results from this study showed a significant and weakly positive correlation between spot uPCR and 24-h urinary protein estimation in different forms of glomerulopathies.The agreement between the two methods was also poor.Hence,there is a need for careful interpretation of the ratio in an unselected group of patients with kidney disease. 展开更多
关键词 Glomerulopathies 24-h proteinuria Spot urinary protein-to-creatinine ratio Correlation PROTEINURIA Agreement
下载PDF
24小时活动行为:老年人健康影响因素研究的新方向 被引量:1
7
作者 吴美倩 肖进 +2 位作者 李斐斐 胡镕镕 刘彩霞 《中国全科医学》 CAS 北大核心 2024年第15期1911-1916,共6页
24 h活动行为包括身体活动、久坐行为及睡眠,国内外研究发现老年人普遍存在身体活动少、久坐、睡眠不足的问题,已有研究证明合理分配24 h活动行为是改善老年人不良健康结局的重要措施,但目前对于老年人24 h活动行为的相关研究仍处于探... 24 h活动行为包括身体活动、久坐行为及睡眠,国内外研究发现老年人普遍存在身体活动少、久坐、睡眠不足的问题,已有研究证明合理分配24 h活动行为是改善老年人不良健康结局的重要措施,但目前对于老年人24 h活动行为的相关研究仍处于探索阶段。本文结合现有的研究从24 h活动行为的概念、理论发展、分析方法以及其与老年人不良健康结局的关系进行综述。未来需要积极开展相关研究,深入探讨并量化24 h活动行为对老年人健康产生的影响,形成能够发挥老年人最大健康效益的24 h活动行为组合,开发准确的评估工具,以促进积极老龄化和健康老龄化。 展开更多
关键词 老年人 24小时活动行为 身体活动 久坐行为 睡眠 综述
下载PDF
miR-23a/27a/24基因簇g.65307469G>A突变对大白猪产仔数和启动子活性的影响
8
作者 王思琪 李玉琦 +5 位作者 周春雪 杨柳 杜星 吴望军 潘增祥 李齐发 《南京农业大学学报》 CAS CSCD 北大核心 2024年第2期334-341,共8页
[目的]本文旨在研究大白猪miR-23a/27a/24基因簇启动子突变位点多态性与产仔数性状的关系及潜在机制,为母猪繁殖性状的分子育种提供新的潜在遗传标记。[方法]利用混池测序技术筛选猪miR-23a/27a/24基因簇启动子突变位点,直接测序法对大... [目的]本文旨在研究大白猪miR-23a/27a/24基因簇启动子突变位点多态性与产仔数性状的关系及潜在机制,为母猪繁殖性状的分子育种提供新的潜在遗传标记。[方法]利用混池测序技术筛选猪miR-23a/27a/24基因簇启动子突变位点,直接测序法对大白猪群体(n=345)miR-23a/27a/24基因簇突变位点进行基因分型,计算遗传多样性;用线性模型对突变位点多态性与产仔数性状进行关联性分析;构建不同等位基因类型启动子载体,转染猪卵巢颗粒细胞,通过检测荧光素酶活性分析突变对启动子活性的影响;用生物信息学方法预测不同等位基因类型启动子潜在结合的差异转录因子,用荧光素酶活性分析差异转录因子对不同等位基因类型启动子活性的影响。[结果]在猪miR-23a/27a/24基因簇启动子-648 nt(Chr.2,65307469 nt)处发现1个新的G/A突变,命名为g.65307469G>A。在大白猪群体中发现3种基因型(GG、GA和AA),其中GG为优势基因型(89.57%),G等位基因为优势等位基因(94.64%)。关联性分析发现,GA基因型母猪的总产仔数(TNB)比GG基因型母猪每胎高0.56头(P<0.05)。荧光素酶活性分析结果显示G等位基因类型启动子活性显著高于A等位基因类型(P<0.05)。在不同等位基因类型启动子间发现1个潜在结合的差异转录因子死亡相关蛋白1(THAP1),成功构建猪THAP1基因过表达载体,共转试验结果显示转录因子THAP1对不同等位基因类型启动子活性均无显著影响(P>0.05)。[结论]miR-23a、miR-27a和miR-24是大白猪产仔数性状的候选基因,g.65307469G>A突变抑制miR-23a/27a/24基因簇的启动子活性,但与转录因子THAP1无关。 展开更多
关键词 大白猪 miR-23a/27a/24基因簇 变异位点 产仔数性状 启动子活性
下载PDF
24小时活动行为对学龄前儿童执行功能影响的成分等时替代效益研究
9
作者 胥祉涵 王世强 +3 位作者 余澳林 陈昱欣 肖顺英 马梓桐 《体育学刊》 CAS 北大核心 2024年第2期148-154,共7页
对湖南省株洲市209名3~6岁学龄前儿童展开横断面调查,通过加速度计测量24 h活动,采用学龄前儿童执行功能问卷父母版评估学龄前儿童执行功能水平,运用成分数据和等时替代模型方法分析24 h活动时间占比与学龄前儿童执行功能的关系,以及24 ... 对湖南省株洲市209名3~6岁学龄前儿童展开横断面调查,通过加速度计测量24 h活动,采用学龄前儿童执行功能问卷父母版评估学龄前儿童执行功能水平,运用成分数据和等时替代模型方法分析24 h活动时间占比与学龄前儿童执行功能的关系,以及24 h活动行为时间重新分配与执行功能的预期变化。结果显示:(1)MVPA时间占比与学龄前儿童执行功能总分呈显著负相关(β_(1)^((4))=-5.45,P=0.03),LPA时间占比与学龄前儿童执行功能总分也呈显著负相关(β_(1)^((4))=-10.67,P<0.001),睡眠时间占比与学龄前儿童执行功能总分呈显著正相关(β_(1)^((4))=15.30,P<0.001),久坐行为时间占比与学龄前儿童执行功能总分无相关性。(2)15 min等时替代模型预测变化显示,MVPA替换其他活动行为后,学龄前儿童执行功能总分均显著下降,反之则上升,且MVPA与其他3种活动行为时间重新分配对执行功能的等时替代效益具有不对称性;在所有替代中,MVPA替代LPA对降低执行功能总分的效应最佳。研究认为:幼儿园、家长应重视学龄前儿童24 h活动行为时间的综合效应,以及MVPA不足对学龄前儿童执行功能的负面效应。不仅要长期坚持“多动少坐”的理念,更应促进久坐与MVPA之间的转换,同时可以通过提高PA强度促使LPA向MVPA转换,以促进学龄前儿童执行功能发展。 展开更多
关键词 24 h活动行为 学龄前儿童 执行功能 等时替代
下载PDF
24 Model在道路运输事故成因中的应用
10
作者 刘晓露 梁志星 +2 位作者 吴君安 严玉琼 张苏 《汽车安全与节能学报》 CAS CSCD 北大核心 2024年第2期185-192,共8页
为预防道路运输事故,基于事故致因“2-4”(24 Model)模型,对2015—2021年发生的215起道路运输事故的行为原因进行研究。从个人层面和组织层面分析导致事故发生的直接原因、间接原因、根本原因及其根源原因。结果表明:发生频次最多的不... 为预防道路运输事故,基于事故致因“2-4”(24 Model)模型,对2015—2021年发生的215起道路运输事故的行为原因进行研究。从个人层面和组织层面分析导致事故发生的直接原因、间接原因、根本原因及其根源原因。结果表明:发生频次最多的不安全动作是驾驶员超速行驶(占10.67%);22.33%的道路运输事故存在管理者违章安排无资质员工上岗作业;管理者和领导者对57.67%的道路运输事故的发生有重要影响;由人为因素产生的不安全物态占比达71.53%;驾驶员、车辆安全生产管理制度欠缺或执行不到位在根本原因中尤为突出(占20.92%)。基于此,提出道路运输事故预防对策并构建出道路运输系统各因素关系图。 展开更多
关键词 汽车主动安全 道路运输事故 事故致因 “2-4”模型(24 Model) 对策
下载PDF
大学生24 h活动行为和心肺适能关系的成分数据分析
11
作者 刘佳佳 周傥 +1 位作者 李易燕 全明辉 《首都体育学院学报》 北大核心 2024年第2期198-206,共9页
目的:运用成分数据分析探究大学生24 h活动行为与心肺适能(cardiorespiratory fitness,CRF)的关系,以及各活动行为间等时替代后CRF的预测变化。方法:数据来源于“上海体育大学校友健康队列研究”。共纳入1039名大学生[男生517人,女生522... 目的:运用成分数据分析探究大学生24 h活动行为与心肺适能(cardiorespiratory fitness,CRF)的关系,以及各活动行为间等时替代后CRF的预测变化。方法:数据来源于“上海体育大学校友健康队列研究”。共纳入1039名大学生[男生517人,女生522人,平均年龄(21.46±0.9)岁]作为研究对象。使用ActiGraph GT3X+三轴加速度计测量久坐行为(sedentary behavior,SB)、轻体力活动(light physical activity,LPA)和中高强度体力活动(moderate-to-vigorous physical activity,MVPA)及自主报告的方式采集睡眠数据。通过功率自行车进行有氧代谢测试以评估CRF,利用双能X射线吸收仪评估受试者的身体成分。采用成分数据分析探究24 h活动行为与CRF的关系,并以成分等时替代模型探究各项活动行为时间相互替代后,CRF的预测变化情况。结果:1)调整混杂因素后,结果表明24 h活动行为与CRF有显著关联。相对其他活动行为,MVPA和CRF成正相关,SB与CRF成负相关,未发现睡眠和LPA与CRF的关联。2)亚组分析显示调整混杂因素后发现,高体脂率组和非体育生组与上述结果一致;低体脂率组和体育生组未发现各分量与CRF相关。3)在等时替代结果中,MVPA等时替代其他活动行为,CRF增加的幅度要远小于其他活动行为等时替代MVPA时CRF下降时的幅度。结论:MVPA和SB行为是影响大学生CRF的主要因素,相对于简单地控制SB行为,更应鼓励将更多SB行为转成MVPA行为,尤其是高体脂率的学生。 展开更多
关键词 24 h活动行为 体力活动 久坐行为 睡眠 心肺适能 成分数据分析
下载PDF
nm23-H1基因转染对膀胱癌T-24细胞转移能力及化疗敏感性的影响 被引量:2
12
作者 崔曙 唐铁龙 +1 位作者 李响 李虹 《四川大学学报(医学版)》 CAS CSCD 北大核心 2007年第5期788-791,共4页
目的探讨nm23-H1基因对人膀胱癌T-24细胞侵袭转移能力及化疗敏感性的影响。方法将nm23-H1真核表达质粒通过电击穿孔转染技术导入人膀胱癌细胞株T-24,G418筛选阳性克隆,免疫组织化学方法检测nm23-H1基因的表达情况。Transwell小室和冲刷... 目的探讨nm23-H1基因对人膀胱癌T-24细胞侵袭转移能力及化疗敏感性的影响。方法将nm23-H1真核表达质粒通过电击穿孔转染技术导入人膀胱癌细胞株T-24,G418筛选阳性克隆,免疫组织化学方法检测nm23-H1基因的表达情况。Transwell小室和冲刷实验观察转染前后细胞的侵袭、粘附、趋化运动能力的变化。MTT法检测T-24细胞转染前后对化疗药物敏感性的变化。结果以电穿孔技术将nm23-H1基因转入T-24细胞后,获得稳定表达;免疫组织化学结果显示T-24细胞株在nm23-H1基因转染前后其表达水平有明显差异;转染后T-24细胞侵袭、粘附、趋化运动能力有明显的降低。转染后T-24细胞对顺铂(CDDP)明显增敏。结论nm23-H1基因对人膀胱癌T-24细胞的侵袭转移能力具有显著抑制作用。nm23-H1基因能增强T24细胞对顺铂的化疗敏感性。 展开更多
关键词 膀胱癌 T-24细胞株 NM23-h1 化疗敏感性
下载PDF
青少年24小时活动与心理健康研究的范围综述 被引量:4
13
作者 缪宇铃 肖昕怡 +3 位作者 姜艳蕊 王广海 江帆 林青敏 《中国循证儿科杂志》 CSCD 北大核心 2023年第1期42-51,共10页
背景由于睡眠、久坐行为和身体活动所构成的24 h活动与青少年心理健康关系的研究异质性极大等局限,难以得出足以指导临床实践的高质量证据集合。目的 总结儿童青少年24 h活动(睡眠、久坐行为和身体活动)与心理健康关系的研究现状及其研... 背景由于睡眠、久坐行为和身体活动所构成的24 h活动与青少年心理健康关系的研究异质性极大等局限,难以得出足以指导临床实践的高质量证据集合。目的 总结儿童青少年24 h活动(睡眠、久坐行为和身体活动)与心理健康关系的研究现状及其研究设计存在的问题并进行评价,为后续研究提供参考。设计范围综述。方法 检索PubMed、Embase、Web of Science和中国知网数据库,检索时间为建库至2022年9月28日,以睡眠、久坐行为、身体活动、24 h活动、心理健康、青少年为检索词构建中英文检索式,纳入健康儿童青少年人群的24 h活动类型与心理健康之间的相关性或因果推断的研究。通过阅读文题、摘要和全文进行筛选,在数据提取和数据整合中,逐渐完善活动类型、测量方式、测量项目分类、测量具体项目的数据提取表格。主要结局指标青少年24 h活动和心理健康关系的研究类型及其测量工具。结果 中英文数据库共检索到927篇文献,经去重、初筛和全文筛选后,最终纳入55篇文献,其中横断面研究45篇(82%),前瞻性队列研究10篇。睡眠:54篇描述了睡眠时长,4篇评估了睡眠质量、睡眠潜伏期、日间嗜睡情况和睡眠中断情况。久坐行为:50篇为主观报告,5篇为客观报告,46篇涉及屏幕暴露。身体活动:主观报告和客观评估中高强度身体活动时间分别为47篇和8篇。32篇文献关注了抑郁,9篇关注了焦虑,5篇关注了压力,35篇关注了其他心理健康结局(正性情绪、行为问题、生活满意度或健康相关生命质量、心理疾病及症状、情绪调节能力和手机成瘾)。44篇文献探索24 h活动与心理健康的相关性,8篇文献使用等时替代模型探索24 h活动结构的改变,3篇探索24 h活动影响心理健康的中介因素。结论 青少年24 h活动与心理健康的关联研究尚少,所使用的测量工具有待规范统一,未来需针对现行24 h活动推荐时间建立等时替代模型或在真实世界进行干预研究,寻找既能够最大发挥24 h活动的健康效应,又能够让青少年人容易达到的24 h活动时间的推荐组合。 展开更多
关键词 青少年 24 h活动 睡眠 久坐行为 身体活动 心理健康
下载PDF
Levels and correlates of 24-hour movement behaviors among South Koreans:Results from the Korea National Health and Nutrition Examination Surveys,2014 and 2015 被引量:2
14
作者 Eun-Young,Lee Valerie Carson +2 位作者 Justin Y.Jeon John C.Spence Mark S.Tremblay 《Journal of Sport and Health Science》 SCIE 2019年第4期376-385,共10页
Purpose.This study aimed to examine the levels and correlates of 24-h movement behaviors(i.e.,physical activity,sedentary time,and sleep),and different patterns of these behaviors in a nationally representative sample... Purpose.This study aimed to examine the levels and correlates of 24-h movement behaviors(i.e.,physical activity,sedentary time,and sleep),and different patterns of these behaviors in a nationally representative sample of South Koreans aged 12 years and older.This study also aimed to examine the sociodemographic correlates of 24?h movement behaviors stratified by age groups.Methods.Self-reported,repeated cross-sectional data from 10,708 participants in the 2014 and 2015 Korea National Health and Nutrition Examination surveys were used.Key variables included moderate-to-vigorous intensity physical activity,muscular strengthening exercises,walking,active transportation,sedentary time,and sleep.Sociodemographic variables included age,sex,household income,area of residence,and education level.Descriptive statistics by sex and age as well as general linear models by age group were performed.Results.The proportions of individuals meeting the moderate-to-vigorous intensity physical activity,muscular strengthening exercises,and sleep guidelines were,respectively,21.6%,22.1%,and 32.5%in male youth;6.9%,4.5%,and 22.8%in female youth;55.5%,30.8%,and 54.0%in male adults;48.8%,14.4%,and 57.6%in female adults;44.0%,30.6%,and 45.5%in male older adults;and 29.5%,8.9%,and 37.3%in female older adults.The proportions of individuals showing the most ideal combinations of 24-h movement behaviors were only 3.2%in youth,0.4%in adults,and 0 in older adults.Universally,older age,female sex,or living in metro Seoul were associated with unfavorable patterns of 24-h movement behaviors across different age groups.However,the associations of income and education with movement behaviors were mixed across age groups.Conclusion.Overall,the proportion of South Koreans with a healthy 24-h movement behavior pattern is low.The sociodemographic correlates of different types of 24-h movement behaviors should be considered when designing targeted interventions for the promotion of healthy active living for South Koreans. 展开更多
关键词 24-h movement BEHAVIOR Behavioral epidemiology Guideline ADHERENCE HEALTH BEHAVIOR surveillance
下载PDF
24-hour esophageal pH-monitoring in children suspected of gastroesophageal reflux disease: Analysis of intraesophageal pH monitoring values recorded in distal and proximal channel at diagnosis 被引量:1
15
作者 Janusz Semeniuk Maciej Kaczmarski 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第38期5108-5115,共8页
AIM: To assess values of 24-h esophageal pH-monitoring parameters with dual-channel probe (distal and proximal channel) in children suspected of gastroesophageal reflux disease (GERD). METHODS: 264 children suspected ... AIM: To assess values of 24-h esophageal pH-monitoring parameters with dual-channel probe (distal and proximal channel) in children suspected of gastroesophageal reflux disease (GERD). METHODS: 264 children suspected of gastroesophageal reflux (GER) were enrolled in a study (mean age χ = 20.78 ± 17.23 mo). The outcomes of this study, immunoallerrgological tests and positive result of oral food challenge test with a potentially noxious nutrient, enabled to qualify children into particular study groups. RESULTS: 32 (12.1%) infants (group 1) had physiological GER diagnosed. Pathological acid GER was confirmed in 138 (52.3%) children. Primary GER was diagnosed in 76 (28.8%) children (group 2) and GER secondary to allergy to cow milk protein and/or other food (CMA/FA) in 62 (23.5%) children (group 3). 32 (12.1%) of them had CMA/FA (group 4-reference group), and in remaining 62 (23.5%) children neither GER nor CMA/FA was confirmed (group 5). Mean values of pH monitoring parameters measured in distal and proximal channel were analyzed in individual groups. This analysis showed statistically significant differentiation of mean values in the case of: number of episodes of acid GER, episodes of acid GER lasting > 5 min, duration of the longest episode of acid GER in both channels, acid GER index total and supine in proximal channel. Statistically significant differences of mean values among examined groups, especially between group 2 and 3 in the case of total acid GER index (only distal channel) were confirmed. CONCLUSION: 24-h esophageal pH monitoring confirmed pathological acid GER in 52.3% of children with typical and atypical symptoms of GERD. The similar pH-monitoring values obtained in group 2 and 3 confirm the necessity of implementation of differential diagnosis for primary vs secondary cause of GER. 展开更多
关键词 CHILDREN Gastroesophageal reflux disease 24-h esophageal pH-monitoring 2-channel probe Gastroesophageal reflux Primary and secondary CMA/ FA Oral food challenge test
下载PDF
24-Hour Urinary Sodium Excretion Association with Cardiovascular Events:A Systematic Review and Dose-Response Meta-Analysis
16
作者 ZHAO Dan LI Hua Min +1 位作者 LI Chao Xiu ZHOU Bo 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2022年第10期921-930,共10页
Objective The relationship between sodium intake and cardiovascular(CV)events remains unconfirmed.Therefore,we carried out a systematic review and dose-response meta-analysis for evaluating the potential impact of 24-... Objective The relationship between sodium intake and cardiovascular(CV)events remains unconfirmed.Therefore,we carried out a systematic review and dose-response meta-analysis for evaluating the potential impact of 24-hour sodium excretion on CV risk.Besides,24-hour sodium excretion was used to replace daily sodium diet intake.Methods We searched ISI Web of Science,Embase,Pub Med,and the Cochrane Library.Our study included cohort studies reporting hazard ratio(HR).The random-effects model was used for summarizing the total relative risks(RRs)between the included studies.In addition,the generalized least-squares regression was employed to fit the study model.Results A total of 9 studies involving 645,006 participants were included in this study.A significant non-linear relationship was observed between sodium excretion and CV events(P^(non-linearity)<0.001).In studies collecting 24-h urine samples,the sodium excretion and CV events risk were associated linearly(RR:1.04;95%CI:1.01,1.07).Conclusion In a linear dose-response manner,every 1 g increase in sodium intake was associated with an increased risk of CV events up to 4%.Further studies are required to validate our conclusions further. 展开更多
关键词 Cardiovascular events META-ANALYSIS 24-h urinary sodium excretion DOSE-RESPONSE Sodium intake
下载PDF
Transcutaneous cervical esophagus ultrasound in adults: Relation with ambulatory 24-h pH-monitoring and esophageal manometry
17
作者 Sabite Kacar Selma Uysal +4 位作者 Sedef Kuran Ulku Dagli Yasemin Ozin Erdem Karabulut Nurgul Sasmaz 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第39期5245-5252,共8页
AIM: To determine the gastroesophageal refl uxate in the cervical esophagus (CE) and measure transcutaneous cervical esophageal ultrasound (TCEUS) f indings [anterior wall thickness (WT) of CE, esophageal luminal diam... AIM: To determine the gastroesophageal refl uxate in the cervical esophagus (CE) and measure transcutaneous cervical esophageal ultrasound (TCEUS) f indings [anterior wall thickness (WT) of CE, esophageal luminal diameter (ELD), esophageal diameter (ED)]; to compare TCEUS findings in the patient subgroups divided according to 24-h esophageal pH monitoring and manometry; and to investigate possible cut-off values according to the TCEUS f indings as a predictor of gastroesophageal refl ux (GER). METHODS: In 45/500 patients, refl uxate was visualized in TCEUS. 38/45 patients underwent esophagogastroduo denoscopy (EGD), 24-h pH monitoring and manometry. RESULTS: The 38 patients were grouped according to 24-h pH monitoring as follows: Group A: GER-positive (n = 20) [Includes Group B: isolated proximal refl ux (PR) (n = 6), Group C: isolated distal reflux (DR) (n = 6), and Group D: both PR/DR (n = 8)]; Group E: no refl ux (n = 13); and Group F: hypersensitive esophagus (HSE) (n = 5). Groups B + D indicated total PR patients (n = 14), Groups E + F refl ux-negatives with HSE (n = 18), and Groups A + F refl ux-positives with HSE (n = 25). When the 38 patients were grouped according to manometry fi ndings, 24 had normal esophageal manometry; 7 had hypotensive and 2 had hypertensive lower esophageal sphincter (LES); and 5 had ineffective esophageal motility disorder (IEM). The ELD measurement was greater in group A + F than group E (P = 0.023, 5.0 ± 1.3 vs 3.9 ± 1.4 mm). In 27/38 patients, there was at least one pathologic acid refl ux and/or pathologic manometry fi nding. The cut-off value for ELD of 4.83 mm had 79% sensitivity and 61% specificity in predicting the PRbetween Groups B + D and E (AUC = 0.775, P = 0.015). CONCLUSION: Visualizing refluxate in TCEUS was useful as a pre-diagnostic tool for estimating GER or manometric pathology in 71.1% of adults in our study, but it was not diagnostic for CE WT. 展开更多
关键词 Ambulatory 24-h pH monitoring Cervical esophageal ultrasound Gastroesophageal reflux Esophageal manometry Esophageal refluxate
下载PDF
Effect of Xuesaitong Combined with Autologous Platelet-rich Gel on Blood Glucose,AT-III,TNF-αand 24-h Urinary Protein Level in Patients with Diabetic Foot
18
作者 Wei LI Mei CAO Hong ZHU 《Medicinal Plant》 CAS 2021年第2期79-81,84,共4页
[Objectives]To investigate the clinical effect of different doses of Xuesaitong combined with autologous platelet-rich gel(APG)on patients with diabetic foot(DF).[Methods]90 patients with diabetic foot admitted to our... [Objectives]To investigate the clinical effect of different doses of Xuesaitong combined with autologous platelet-rich gel(APG)on patients with diabetic foot(DF).[Methods]90 patients with diabetic foot admitted to our hospital from February 2017 to February 2019 were enrolled in the study.According to the random number table method,the subjects were divided into study group A and B and control group C.Group A was given a low dose of Xuesaitong combined with APG,while group B was given high-dose Xuesaitong combined with APG and group C was treated only with APG.Patients in the three groups were observed and the changes of related indexes were detected.[Results]After treatment,with regard to the three groups,the fasting blood glucose,2-h postprandial blood glucose level,HbA1c,TNF-α,Hcy,blood urea nitrogen(BUN),creatinine(Cr)and 24-h urine protein levels were all decreased,yet AT-III level was increased,and granulation tissue coverage and thickness,wound clearance rate were increased,while the repair time of ulcer surface was significantly reduced.The above indexes were all significantly different(P<0.05).Compared with the control group C,the changes of the indexes in the study group A and B were the same as above,and the difference was significant(P<0.05).Compared with the study group A,the level of AT-III in group B was significantly increased(P<0.05),while TNF-α,Hcy,BUN,Cr and 24-h urine protein levels were significantly decreased(P<0.05).There was no significant difference in the other indexes between groups A and B(P>0.05).[Conclusions]Xuesaitong combined with APG could effectively reduce the blood sugar level of DF patients,improve the clinical indexes,promote wound healing,and the high-dose group had more significant advantages and was worthy of promotion. 展开更多
关键词 Diabetic foot XUESAITONG Autologous platelet-rich gel Blood glucose Antithromboplastin-III 24-h urine protein level
下载PDF
Catalyst Free One-Pot Synthesis of Chromeno Quinolines and Their Antibacterial Activity
19
作者 Sruthi Vasamsetty Sunitha Medidi +5 位作者 Satheesh Ampolu Ravi Kumar Majji Mastan Rao Kotupalli Chikurumilli China Satyanarayana Annapurna Nowduri Paul Douglas Sanasi 《Green and Sustainable Chemistry》 2017年第2期141-151,共11页
An efficient greener one pot synthesis of dimethyl-dihydro-7H-chromeno[3, 2-h]quinolin-8(9H)-one derivatives has been synthesized through cyclization of aromatic aldehyde, dimidone and 8-hydroxy-quinoline through one-... An efficient greener one pot synthesis of dimethyl-dihydro-7H-chromeno[3, 2-h]quinolin-8(9H)-one derivatives has been synthesized through cyclization of aromatic aldehyde, dimidone and 8-hydroxy-quinoline through one-pot condensation method is described. The synthesized compounds are screened for further biological activities against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis, Bacillus using cut plate method and disc diffusion method. 展开更多
关键词 Dimethyl-Dihydro-7H-Chromeno[3 2-h]Quinolin-8(9H)-One Derivatives Syn-thesis Biological activity and ONE-POT CONDENSATION
下载PDF
均匀化退火对铸轧供坯3004-H24铝合金性能的影响
20
作者 李彦勤 蒋随强 +1 位作者 刘建兴 胡岳 《甘肃冶金》 2021年第5期66-68,71,共4页
本次试验采用铸轧3004铝合金坯料生产的建筑装饰料,使用两种实验方案,通过对比不同工艺生产的产品低倍组织、性能等试验指标,确定最终产品工艺路线,生产出表面质量良好、性能稳定的建筑装饰用铸轧供坯3004-H24铝合金带材,并实现批量工... 本次试验采用铸轧3004铝合金坯料生产的建筑装饰料,使用两种实验方案,通过对比不同工艺生产的产品低倍组织、性能等试验指标,确定最终产品工艺路线,生产出表面质量良好、性能稳定的建筑装饰用铸轧供坯3004-H24铝合金带材,并实现批量工业化生产。 展开更多
关键词 铸轧供坯 3004-h24 均匀化退火 组织性能
下载PDF
上一页 1 2 6 下一页 到第
使用帮助 返回顶部