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Early curative effect of extracorporeal membrane oxygenation in the treatment of fulminant myocarditis and its influence on prognosis

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South China Journal of Cardiology 2024年第2期25卷 117-122页

作者：黄喆李静王辉于紫英谭位华姚岚 Intensive Care Unit Yueyang Central HospitalYue Yang 414000Hu Nan ProvinceChina Department of Emergency The First Affiliated HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421000Hu Nan ProvinceChina

Background Adult Fulminant myocarditis(FM)is the more serious form of acute myocarditis,and extracorporeal membrane oxygenation(ECMO)is an effective adjunction that helps to maintain circulation while providing adequate *** blood supply of vital organs is guaranteed,which helps patients to survive the acute attack and improves the survival rate of *** In this study,50 clinical data of adult FM patients received in our hospital from July 2018 to July 2023 were collected for retrospective *** to different treatment methods,they were divided into ECMO group(n=25)and non-ECMO group(n=25).After 14 days of treatment,the level of left ventricular ejection fraction(LVEF),left ventricular end-diastolic diameter(LVEDD),left ventricular end-systolic diameter(LVESD),creatine kinase isoenzymes(ck-MB),cardiac troponinⅠ(cTnⅠ)and brain natriuretic peptide(BNP),and the incidence of complications were compared between the two *** Before treatment,there was no significant difference in cardiac function between the two groups(P>0.05).After 14 days of treatment,ECMO group showed greater decline than non-ECMO group in LVESD and LVEDD,and LVEF was higher than that in the non-ECMO group(Pck-MB,cTnⅠ and BNP in ECMO group were lower than those in non-ECMO(P<0.05).The overall incidence of complications was 8% in the ECMO group,which was lower than 32% in the non-ECMO group(P<0.05).Conclusions The early efficacy of ECMO treatment in adult patients with FM is considerable,which is conducive to improving the cardiac function of patients and preventing complications.

关键词： Extracorporeal membrane oxygenation Fulminant myocarditis Early curative effect

黄腐酸钾对灵武长枣氮素吸收、分配及利用的影响

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湖北农业科学 2024年第1期63卷 42-46页

作者：李慧李百云宁夏农林科学院园艺研究所银川750002

以5年生的灵武长枣(Ziziphus jujuba Mill. cv. Lingwuchangzao)树为试材,采用15N示踪法进行田间试验,研究0 kg/株(ck)、0.5 kg/株(T1)、1.0 kg/株(T2)、1.5 kg/株(T3)不同黄腐酸钾有机肥施用量对灵武长枣氮素吸收、分配、利用的影响。... 详细信息

以5年生的灵武长枣(Ziziphus jujuba Mill. cv. Lingwuchangzao)树为试材,采用15N示踪法进行田间试验,研究0 kg/株(ck)、0.5 kg/株(T1)、1.0 kg/株(T2)、1.5 kg/株(T3)不同黄腐酸钾有机肥施用量对灵武长枣氮素吸收、分配、利用的影响。结果表明,灵武长枣树体氮积累量随黄腐酸钾供应水平的提高而增加,1.5 kg/株黄腐酸钾处理在果实成熟期氮积累量最高,达59.66 g/株,各处理以叶片、果实氮积累量较高;3个黄腐酸钾处理均显著提高了植株对氮素的吸收征调能力(NdFF)和15N吸收量(PT2>T1>ck,不同器官的NdFF表现为果实最高;不同施肥处理的植株各器官15N分配率存在差异,以贮藏器官(果实)较高;与ck相比,3个黄腐酸钾处理15N当季利用率增加了2.27~5.34个百分点,以T3处理最佳,为8.92%。综合分析认为,配施1.5 kg/株黄腐酸钾有机肥,灵武长枣植株15N的吸收利用效果最佳。

关键词：黄腐酸钾灵武长枣(Ziziphus jujuba Mill.cv.Lingwuchangzao) 氮素吸收分配利用

高温胁迫下外源物质对颖花能量水平的影响及其与水稻耐热性关系分析

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南方农业学报 2024年第2期55卷 440-450页

作者：陈宇航陈会丽汪胜勇高子慧田威田小海丁双成王宏伟农业农村部长江中游作物绿色高效生产重点实验室/长江大学农学院湖北荆州434025 主要粮食作物产业化湖北省协同创新中心湖北荆州434025

【目的】探究高温胁迫下喷施外源化学物质对水稻颖花能量水平的影响及其与水稻耐热性的关系,以期为水稻的耐热栽培提供理论依据。【方法】以常规籼稻高温耐性品种广陆矮15(GLA15)和高温敏感品种绵恢101(MH101)为试验材料,减数分裂期以... 详细信息

【目的】探究高温胁迫下喷施外源化学物质对水稻颖花能量水平的影响及其与水稻耐热性的关系,以期为水稻的耐热栽培提供理论依据。【方法】以常规籼稻高温耐性品种广陆矮15(GLA15)和高温敏感品种绵恢101(MH101)为试验材料,减数分裂期以叶面喷施清水为对照(ck),设5个外源物质喷施处理:0.15 mmol/L蔗糖(Suc)、25mmol/L阿卡波糖(Aca)、10mmol/L水杨酸(SA)、10mmol/L水杨酸+0.15mmol/L蔗糖(SA+Suc)、10mmol/L水杨酸+25 mmol/L阿卡波糖(SA+Aca)。喷施完毕立即利用日光型人工气候室进行高温胁迫(日最高气温/日最低气温为38.0℃/29.0℃)处理,分析高温胁迫下不同外源物质对颖花能量水平、花粉活力、颖花受精率、蔗糖代谢酶活性、抗氧化酶活性、碳水化合物含量、苯丙烷类代谢酶活性和次生代谢物含量的影响。【结果】喷施不同外源物质可构建不同的颖花能量水平,与ck相比,高温胁迫下2个水稻品种的ATP含量和ATPase活性均以SA+Suc处理最高,Aca处理最低,且GLA15颖花的ATP含量和ATPase活性总体高于MH101。高温胁迫下SA+Suc、Suc和SA处理的花粉活力和颖花受精率均较ck提高;Aca处理的花粉活力和颖花受精率则较ck显著降低(PGLA15。与ck相比,高温胁迫下SA、Suc和SA+Suc处理的蔗糖合酶、酸性转化酶、超氧化物歧化酶、过氧化物酶和抗坏血酸过氧化物酶活性增加,Aca处理的上述酶活性均降低;SA、Suc和SA+Suc处理的颖花碳水化合物含量增加,Aca处理的颖花碳水化合物含量降低(MH101的果糖和可溶性糖含量除外),SA可促进颖花的糖代谢水平,进而缓解Aca对可溶性糖、蔗糖和非结构性碳水化合物含量的抑制作用。高温胁迫下2个品种的苯丙氨酸解氨酶、肉桂酸-4-羟化和4-香豆酸辅酶A连接酶活性及木质素含量均以SA+Suc处理较高,总酚和总黄酮含量以Suc处理较高。【结论】外源化学物质主要通过影响碳水化合物含量和蔗糖代谢,调控颖花能量水平,维持较高抗氧化酶活性和次生代谢物水平,增强水稻花器官对高温胁迫的耐性。通过施用外源物质改善颖花能量起始水平可能是有效缓解水稻高温胁迫的一种潜在技术策略。

关键词：水稻高温胁迫颖花能量水平耐热性

An APXPS endstation for gas–solid and liquid–solid interface studies at SSRF

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Nuclear Science and Techniques 2019年第5期30卷 103-112页

作者： Jun Cai Qiao Dong Yong Han Bao-Hua Mao hui Zhang Patrik G.Karlsson john ?hlund Ren-Zhong Tai Yi Yu Zhi Liu State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences School of Physical Science and Technology ShanghaiTech University University of Chinese Academy of Sciences Scienta Omicron Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai Synchrotron Radiation Facility

In the past few decades, various surface analysis techniques find wide applications in studies of interfacial phenomena ranging from fundamental surface science,catalysis, environmental science and energy *** the help of bright synchrotron sources, many of these techniques have been further advanced into novel in-situ/operando tools at synchrotron user facilities, providing molecular level understanding of chemical/electrochemical processes in-situ at gas–solid and liquid–solid *** a proper endstation for a dedicated beamline is one of the challenges in utilizing these techniques efficiently for a variety of user's requests. Many factors,including pressure differential, geometry and energy of the photon source, sample and analyzer, need to be optimized for the system of interest. In this paper, we discuss the design and performance of a new endstation at beamline02 B at the Shanghai Synchrotron Radiation Facility for ambient pressure X-ray photoelectron spectroscopy *** system, equipped with the newly developed hightransmission HiPP-3 analyzer, is demonstrated to be capable of efficiently collecting photoelectrons up to 1500 eV from ultrahigh vacuum to ambient pressure of 20 *** spectromicroscopy mode of HiPP-3 analyzer also enables detection of photoelectron spatial distribution with resolution of 2.8 ± 0.3 lm in one dimension. In addition,the designing strategies of systems that allow investigations in phenomena at gas–solid interface and liquid–solid interface will be highlighted through our discussion.

关键词： Ambient pressure XPS Synchrotron Liquid- solid interface Spectromicroscopy

3D自支撑钴基硫化物电极电催化还原硝酸盐特性研究

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环境科学学报 2024年第5期44卷 92-101页

作者：肖晓罗章奕何玮钰李安旎陈浩赵辉孙东潘纲广东海洋大学化学与环境学院湛江524088 海岸带环境保护与生态修复中心湛江524088 约克圣约翰大学人文学院英国YO317EX

针对水体硝酸盐污染严重的问题,本研究以泡沫镍(NF)为基底材料,采用恒电流沉积法制备了3D自支撑钴基硫化物电极—CoxS/NF,用于电催化还原硝酸盐.重点研究了CoxS/NF电极制备参数和电解工作条件对硝酸盐去除的影响规律及其硝酸盐还原机制... 详细信息

针对水体硝酸盐污染严重的问题,本研究以泡沫镍(NF)为基底材料,采用恒电流沉积法制备了3D自支撑钴基硫化物电极—CoxS/NF,用于电催化还原硝酸盐.重点研究了CoxS/NF电极制备参数和电解工作条件对硝酸盐去除的影响规律及其硝酸盐还原机制.研究结果表明,在硝酸盐初始浓度为50 mg·L^(-1)(以NO_(3)^(-)N计),工作电流为4.0 mA,反应时间为180 min的条件下,硫脲浓度为0.8 mol·L^(-1)和沉积电流为0.7 mA条件下制备的CoxS/NF电极(2 cm×2 cm)表现出最佳的硝酸盐去除效果,其硝酸盐去除率为79.0%,N2选择性高达93.6%.该过程符合伪一级动力学反应方程,反应速率常数为0.0077 min^(-1).CoxS/NF电极还表现出优异的Cl^(-)耐受性和重复使用性.循环伏安、计时电流和塔菲尔测试结果表明超薄纳米片CoxS的引入能有效增加电极与硝酸根离子的接触面积,改善了CoxS/NF电极的硝酸盐电催化活性和稳定性.

关键词：电催化还原电沉积钴基硫化物电极硝酸盐 N_(2)选择性

Fructo-oligosaccharide intensifies visceral hypersensitivity and intestinal inflammation in a stress-induced irritable bowel syndrome mouse model

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World Journal of Gastroenterology 2017年第47期23卷 8321-8333页

作者： Bin-Rui Chen Li-Jun Du hui-Qin He john J Kim Yan Zhao Ya-Wen Zhang Liang Luo Ning Dai Department of Gastroenterology Sir Run Run Shaw Hospital School of Medicine Zhejiang University Division of Gastroenterology Loma Linda University Medical Center

AIM To determine whether fructo-oligosaccharide(FOS) affects visceral sensitivity, inflammation, and production of intestinal short-chain fatty acids(SCFA) in an irritable bowel syndrome(IBS) mouse *** Mice were randomly assigned to daily oral gavage of saline solution with or without FOS(8 g/kg body weight) for 14 d. Mice were further assigned to receive either daily one-hour water avoidance stress(WAS) or sham-WAS for the first 10 d. After 2 wk, visceral sensitivity was measured by abdominal withdrawal reflex in response to colorectal distension and mucosal inflammation was evaluated. Gas chromatography, real-time reverse transcription PCR, and immunohistochemistry assays were used to quantify cecal concentrations of SCFA, intestinal cytokine expression, and number of intestinal mast cells per high-power field(HPF), *** Mice subjected to WAS exhibited visceral hypersensitivity and low-grade inflammation. Among mice subjected to WAS, FOS increased visceral hypersensitivity and led to higher cecal concentrations of acetic acid(2.49 ± 0.63 mmol/L vs 1.49 ± 0.72 mmol/L, P < 0.05), propionic acid(0.48 ± 0.09 mmol/L vs 0.36 ± 0.05 mmol/L, P < 0.01), butyric acid(0.28 ± 0.09 mmol/L vs 0.19 ± 0.003 mmol/L, P < 0.05), as well as total SCFA(3.62 ± 0.87 mmol/L vs 2.27 ± 0.75 mmol/L, P < 0.01) compared to saline administration. FOS also increased ileal interleukin(IL)-23 mR NA(4.71 ± 4.16 vs 1.00 ± 0.99, P < 0.05) and colonic IL-1β mR NA(2.15 ± 1.68 vs 0.88 ± 0.53, P < 0.05) expressions as well as increased mean mast cell counts in the ileum(12.3 ± 2.6 per HPF vs 8.3 ± 3.6 per HPF, P < 0.05) and colon(6.3 ± 3.2 per HPF vs 3.4 ± 1.2 per HPF, P < 0.05) compared to saline administration in mice subjected to WAS. No difference in visceral sensitivity, intestinal inflammation, or cecal SCFA levels was detected with or without FOS administration in mice subjected to *** FOS administration intensifies visceral hypersensitivity and gut infla

关键词： Fructo-oligosaccharide Stress Irritable bowel syndrome Visceral hypersensitivity Intestinal inflammation Short chain fatty acids FODMAP

四元数矩阵方程(A_(1)XB_(1),…,A_(k)XB_(k))=(C_(1),…,C_(k))的极小范数最小二乘Toeplitz解

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兰州理工大学学报 2024年第1期50卷 152-157页

作者：石俊岭李莹王涛张东惠邱新聊城大学数学科学学院山东聊城252000

基于四元数矩阵实表示,结合矩阵H-表示和矩阵半张量积提出一种求解四元数矩阵方程(A_(1)XB_(1),…,A_(k)XB_(k))=(C_(1),…,C_(k))的极小范数最小二乘Toeplitz解的有效方法,给出该四元数矩阵方程存在Toeplitz解的充要条件及通解表达式.... 详细信息

基于四元数矩阵实表示,结合矩阵H-表示和矩阵半张量积提出一种求解四元数矩阵方程(A_(1)XB_(1),…,A_(k)XB_(k))=(C_(1),…,C_(k))的极小范数最小二乘Toeplitz解的有效方法,给出该四元数矩阵方程存在Toeplitz解的充要条件及通解表达式.给出数值算法并通过算例分别从误差与计算时间两个方面验证该方法的有效性.

关键词：四元数矩阵方程矩阵半张量积极小范数最小二乘Toeplitz解实表示 H-表示

冠脉介入应用于冠心病急性心肌梗死治疗中对患者心室重塑的影响研究

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智慧健康 2024年第5期10卷 135-138页

作者：郑俊良荣惠萍矿总医院心血管内科江西萍乡337000

目的探讨冠脉介入在冠心病急性心肌梗死(CHD-AMI)治疗中对患者心室重塑的影响。方法选取2017年5月—2022年11月本院收治的88例CHD-AMI患者为研究对象,将其随机分为对照组和研究组,每组44例。其中,对照组采取常规的静脉溶栓治疗,研究组... 详细信息

目的探讨冠脉介入在冠心病急性心肌梗死(CHD-AMI)治疗中对患者心室重塑的影响。方法选取2017年5月—2022年11月本院收治的88例CHD-AMI患者为研究对象,将其随机分为对照组和研究组,每组44例。其中,对照组采取常规的静脉溶栓治疗,研究组采取冠脉介入治疗,对比两组疗效及心室重塑情况。结果治疗前,两组NIHSS评分、BNP水平均值区别不明显(P>0.05);治疗3d和治疗后7d,两组NIHSS评分均有所降低,BNP水平治疗3d均有所升高,研究组治疗7d明显降低,对比可见研究组均优于对照组,组间差异有统计学意义(Pck-MB和ck水平均比对照组明显更高,组间差异有统计学意义(P<0.05);研究组治疗后的LESV、LEDV水平均比对照组更低,LVEF水平则比对照组高,组间差异有统计学意义(P<0.05)。结论 CHD-AMI患者经冠脉介入治疗后,不仅能显著缓解心室重塑情况,还能调节患者BNP以及心肌酶水平,进而改善神经功能,值得推荐。

关键词：冠脉介入冠心病急性心肌梗死心室重塑

血清D-二聚体及心肌酶谱对急性肺血栓栓塞的诊断价值分析

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中外医疗 2024年第15期43卷 48-51页

作者：邓安雨张鹏刘慧苏州大学附属第二医院检验科江苏苏州215000

目的分析血清D-二聚体及心肌酶谱在急性肺血栓栓塞诊断中的价值。方法简单随机选取2018年2月—2023年11月苏州大学附属第二医院收治的50例急性肺血栓栓塞患者纳入观察组,选择同期的50例健康体检者纳入对照组。对比两组的天门冬氨酸氨... 详细信息

目的分析血清D-二聚体及心肌酶谱在急性肺血栓栓塞诊断中的价值。方法简单随机选取2018年2月—2023年11月苏州大学附属第二医院收治的50例急性肺血栓栓塞患者纳入观察组,选择同期的50例健康体检者纳入对照组。对比两组的天门冬氨酸氨基转移酶(Aspartate Transaminase, AST)、乳酸脱氢酶(Lactate Dehydrogenase, LDH)、肌酸激酶(Creatine Kinase, ck)、肌酸激酶同工酶(Creatine Kinase IsoenzymeMB, ck-MB)水平及血清中D-二聚体的水平和诊断效果。结果观察组的AST、LDH、ck、ck-MB水平及血清中D-二聚体的水平高于对照组,差异有统计学意义(P均ck、ck-MB联合D-二聚体诊断急性肺血栓栓塞的特异度为90.00%、灵敏度为90.00%、准确度为90.00%,kappa值为0.8。结论心肌酶谱联合血清中D-二聚体对于急性肺血栓栓塞的诊断价值较高,可在临床诊断工作中加以应用。

关键词： D-二聚体心肌酶谱急性肺血栓栓塞临床诊断

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