检索结果-南通市图书馆

Risk factors and risk index of cardiac events in pregnant women with heart disease

Chinese Medical Journal 2012年第19期125卷 3410-3415页

作者： LIU hua huaNG Tao-tao lin jian-hua Department of Obstetrics and Gynecology Renji Hospital Shanghai Jiao Tong University School of Medicine Shanghai Obstetrical Cardiology Intensive Care Center Shanghai 200127 China

Background Pregnant women with heart disease are at high risk. Studies of risk factors of these patients are of great significance to improve maternal and fetal outcomes. In this paper, we try to discuss the main risk factors of cardiac events in pregnant women with heart disease and to establish a risk assessment system. Methods A retrospective analysis was carried out for pregnancies in 1741 women with heart disease who delivered in Shanghai Obstetrical Cardiology Intensive Care Center between January 1993 and September 2010. A Logistic regression model was used to identify independent risk factors of cardiac events and calculate the risk index in pregnant women with heart disease. Results The composition of heart disease in pregnant women was arrhythmia （n=662, 38.00%）, congenital heart disease （CHD; n=529, 30.40%）, cardiomyopathy （n=327, 18.80%）, rheumatic heart disease （RHD; n=151, 8.70%）, and cardiopathy induced by pre-eclampsia （n=53, 3.00%）. Main cardiac events were heart failure （n=110, 6.32%）, symptomatic arrhythmia needing medication （n=43, 2.47%）, cardiac arrest （n=2, 0.11%）, syncope （n=3, 0.17%）, and maternal death （n=10, 0.57%）. Six independent risk factors to predict cardiac events in pregnant women with heart disease were cardiac events before pregnancy （heart failure, severe arrhythmia, cardiac shock, etc., P=0.000）, New York Heart Association （NYHA） class 〉11 （m=0.000）, oxygen saturation 〈90% （P=0.018）, pulmonary artery hypertention （PAH）〉50 mmHg （P=0.025）, cyanotic heart disease without surgical correction （P=-0.015）, and reduced left ventricular systolic function （ejection fraction 〈40%, P=0.003）. Every risk factor was calculated as 1 score. The incidence of cardiac events in patients with scores 0, 1, 2, 3, and 〉4 was 2.10%, 31.61 %, 61.25%, 68.97%, and 100.00% respectively. Conclusions Pregnancy with heart disease could lead to undesirable pregnancy outcomes. The risk of cardiac events in pregnant women with heart disease could be assessed by

关键词： pregnancy heart disease risk factor risk index

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of maternal methyl donor intake during pregnancy on ileum methylation and function in an intrauterine growth restriction pig model

引用

Journal of Animal Science and Biotechnology 2024年第3期15卷 1173-1189页

作者： Yan lin jiangnan Wu Yong Zhuo Bin Feng Zhengfeng Fang Shengyu Xu jian Li hua Zhao De Wu Lun hua Lianqiang Che Key Laboratory of Animal Disease‑Resistance Nutrition Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130SichuanChina

Background Intrauterine growth retardation(IUGR)affects intestinal growth,morphology,and function,which leads to poor growth performance and high *** present study explored whether maternal dietary methyl donor(MET)supplementation alleviates IUGR and enhances offspring’s growth performance by improving intestinal growth,function,and DNA methylation of the ileum in a porcine IUGR *** Forty multiparous sows were allocated to the control or MET diet groups from mating until *** farrowing,8 pairs of IUGR and normal birth weight piglets from 8 litters were selected for sampling before suckling *** The results showed that maternal MET supplementation tended to decrease the IUGR incidence and increased the average weaning weight of ***,maternal MET supplementation significantly reduced the plasma concentrations of isoleucine,cysteine,urea,and total amino acids in sows and newborn *** also increased lactase and sucrase activity in the jejunum of newborn *** addition resulted in lower ileal methionine synthase activity and increased betaine homocysteine S-methyltransferase activity in the ileum of newborn *** methylation analysis of the ileum showed that MET supplementation increased the methyla-tion level of DNA CpG sites in the ileum of newborn ***-regulated differentially methylated genes were enriched in folic acid binding,insulin receptor signaling pathway,and endothelial cell *** contrast,up-regulated methylated genes were enriched in growth hormone receptor signaling pathway and nitric oxide biosyn-thetic *** Maternal MET supplementation can reduce the incidence of IUGR and increase the weaning litter weight of piglets,which may be associated with better intestinal function and methylation status.

关键词： Ileum Intrauterine growth restriction Methyl donor Methylation Sows

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A new liquid membrane diffusion model for characterizing the adsorption kinetics of europium by using a continuous measurement of adsorption platform

引用

Nuclear Science and Techniques 2024年第1期35卷 59-72页

作者： Hao-Qi Yu Tao Yu jian-hua Ye State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China CGN Cangnan Nuclear Power Co. Ltd.Cangnan 325800China jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang 330013China School of Nuclear Science and Engineering East China University of TechnologyNanchang 330013China

To explore the kinetic adsorption under continuous and nonequilibrium states, an integration of continuous measurement and adsorption platform kinetics method was proposed, which was initially called the ICM-AP kinetics method, and a corresponding kinetic adsorption experimental method was developed. Adsorption experiments of europium(Eu) on Ca-bentonite,Na-bentonite, and the D231 cation exchange resin were performed using the ICM-AP kinetics method and continuous measurements. Because the kinetic experimental results observed in this study were different from those of traditional batch adsorption data, pseudo-first-order or pseudo-second-order kinetic models were unsuitable for fitting the experimental ***, a liquid membrane diffusion(LMD) model was developed based on the assumption of simultaneous adsorption/desorption to discuss the mechanism of kinetic adsorption. The kinetic adsorption mechanism was also studied by using *** results indicated that the proposed adsorption model can fit the experimental data more suitably, and the adsorption/desorption behaviors of Eu on bentonite and the D231 resin were simultaneously observed, suggesting that the adsorption kinetics of Eu(Ⅲ) was mainly dominated by hydrated Eu(Ⅲ) ions on the liquid membrane.

关键词： ICM-AP method LMD model Adsorption mechanism Eu(Ⅲ)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of antioxidants on amelioration of high-risk factors inducing hypertensive disorders in pregnancy

引用

Chinese Medical Journal 2010年第18期123卷 2548-2554页

作者： lin jian-hua YANG Yi-ke LIU hua lin Qi-de ZHANG Wei-yuan Department of Obstetrics and Gynecology Renji Hospital Shanghai Jiao Tong University School of Medicine Shanghai 200127 China Beijing Obstetrics and Gynecology Hospital Capital Medical University Beijing 100026 China

Background This is a prospective clinical study based on a large sample gathered from multiple centers in China, subordinating to 10th Five-Year Plan of National Science ＆ Technology Progression. We analyzed the high-risk factors inducing hypertensive disorders in pregnancy （HDP） and estimated the potential effect of anti-oxidants administration, including vitamin C （VC）, vitamin E （VE） and Salvia Miltiorrhiza L （SML）, a Chinese herb medicine, in amelioration of the high-risk factors in pregnancy. Methods From April 2005 to July 2006, 4814 pregnant women from 24 national wide cooperative hospitals were involved in this prospective research. The participants were randomly divided into two groups： 1607 cases were in anti-oxidants group with administration of vitamins and SML; 3207 cases were in control group without any medicine given. Every participant was under monitoring for the morbidity of HDP and the high-risk factors were investigated in HDP cases in each group. Results （1）The morbidity of HDP was 3.55% in anti-oxidants group vs. 4.18% in control group. No statistical difference existed between the two groups （P〉0.05）. （2） In anti-oxidants group, the HDP morbidities among three subgroups： VC ＋ VE ＋ SML, VC ＋ VE and SML only, were 5.51%, 3.05% and 5% respectively. It showed no statistical difference among three remedies （P 〉0.05）. （3） The related index of factors affecting HDP showed in intensity sequence as follows： family HDP history 〉 profession 〉 education level 〉 age 〉 body weight. The incidence of HDP in normal population was 3.51%, and the incidence of HDP in high-risk pregnant women （family HDP history, heavy physical labor, low education level （middle school and below）, age 〉40, body mass index 〉24） was 5.84%, which was obviously higher than that in normal population （P 〈0.01）. In anti-oxidants group, the probability of HDP in women with high-risk factors was 3.81%, which was obviously lower than that in control group with high-risk factors at 7.14% （P〈

关键词： hypertensive disorders of pregnancy anti-oxidants morbidity high-risk factors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Unveiling the tailorable electrochemical properties of zeolitic imidazolate framework-derived Ni-doped LiCoO_(2) for lithium-ion batteries in half/full cells

引用

Journal of Energy Chemistry 2024年第6期93卷 229-242,I0006页

作者： jian-En Zhou Yiqing Liu Zhijian Peng Quanyi Ye hua Zhong Xiaoming lin Ronghua Zeng Yongbo Wu Jiaye Ye Guangdong Provincial International Joint Research Center for Energy Storage Materials Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006GuangdongChina School of Chemistry and Physics Faculty of ScienceQueensland University of TechnologyBrisbaneQLD 4001Australia Key Laboratory of Atomic and Subatomic Structure and Quantum Control(Ministry of Education) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of MatterSchool of PhysicsSouth China Normal UniversityGuangzhou 510006GuangdongChina Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials Guangdong-Hong Kong Joint Laboratory of Quantum MatterSouth China Normal UniversityGuangzhou 510006GuangdongChina

As a prevailing cathode material of lithium-ion batteries(LIBs),LiCoO_(2)(LCO)still encounters the tricky problems of structural collapse,whose morphological engineering and cation doping are crucial for surmounting the mechanical strains and alleviating phase degradation upon ***,we propose a strategy using a zeolitic imidazolate framework(ZIF)as the self-sacrificing template to directionally prepare a series of lini_(0.1)Co_(0.9)O_(2)(LNCO)with tailorable electrochemical *** rational selection of sintering temperature imparts the superiority of the resultant products in lithium storage,during which the sample prepared at 700℃(LNCO-700)outperforms its counterparts in cyclability(156.8 mA h g^(-1)at 1 C for 200 cycles in half cells,1 C=275 mA g^(-1))and rate capability due to the expedited ion/electron transport and the strengthen mechanical *** feasibility of proper Ni doping is also divulged by half/full cell tests and theoretical study,during which LNCO-700(167 mA h g^(-1)at 1 C for 100 cycles in full cells)surpasses LCO-700 in battery performance due to the mitigated phase deterioration,stabilized layered structu re,ameliorated electro nic co nductivity,a nd exalted lithium sto rage *** work systematically unveils tailorable electrochemical behaviors of LNCO to better direct their practical application.

关键词： Lithium-ion batteries Zeolitic imidazolate framework lini_(0.1)Co_(0.9)O_(2) Electrochemical properties

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Influence of Electroshocking Treatment on Microstructure and Mechanical Properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Thin-Wall Specimen Manufactured by Laser Melting Deposition

引用

Acta Metallurgica Sinica(English Letters) 2024年第1期37卷 145-158页

作者： Yan Wen Xuan Sun jian Zhou Bingliang Liu Haojie Guo Yuxin Li Fei Yin Liqiang Wang Lechun Xie lin hua Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of TechnologyWuhan430070China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan430070China Hubei Longzhong Laboratory Xiangyang441000China Shanghai Aircraft Manufacturing Co. Ltd.Commercial Aircraft Corporation of ChinaLtd.Shanghai201324China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China

In order to improve the properties of titanium alloys manufactured by laser melting deposition(LMD),the electroshocking treatment(EST)was proposed in this *** effects of EST on microstructure and mechanical properties of LMD Ti-6.5Al-3.5Mo-1.5Zr-0.3Si were *** results showed that the width of the heat affected band decreased and disappeared under the thermal and athermal effects of EST,resulting in the uniform *** the microstructure,theαlaths became coarser gradually,and the quantity ofα/βinterface was *** reduction of the quantity ofα/βinterface leads to make less resistant to dislocation,resulting in the reduction in hardness and *** discontinuous grain boundaryαphase and nucleationαcolony near grain boundary inhibited the crack propagation and improved the ***,EST can manipulate the microstructure and improve the mechanical properties of LMD titanium alloys.

关键词： Electroshocking treatment(EST) Laser melting deposition(LMD) Titanium alloy Microstructure Mechanical properties

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Electrolyte effect on electrochemical behaviors of manganese fluoride material for aqueous asymmetric and symmetric supercapacitors

引用

Rare Metals 2024年第3期43卷 1048-1061页

作者： Zheng-hua He jian-Fei Gao ling-Bin Kong State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of TechnologyLanzhou730050China School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou730050China

Exploring wide voltage window materials is not only an available measure to enhance the energy density of hybrid supercapacitor(HSCs),but also avoids the dynamic mismatch caused by different energy storage mechanisms of two electrodes in assembled symmetrical ***,there are few reports about the wide potential window materials except Bi_(2)O_(3)and VO_(2).Therefore,the MnF_(2)synthesized by solvothermal reaction was served as the electrode for *** MnF_(2)exhibited electrochemical activity in alkaline solution in three-electrode system,especially with a wide potential window from-0.8 to+0.5 V in 2 mol·L^(-1)***,the assembled MnF_(2)//MnF_(2)symmetrical HSC had a potential window of 1.5 V,and it exhibited outstanding long-cycle ***,when MnF_(2)was taken as the negative and positive respectively,the potential windows of asymmetric devices CoMoO_(4)//MnF_(2)and MnF_(2)//Activated Carbon(AC)could reach 1.3 and 1.45 V,respectively,showing excellent cycle *** work shows that MnF_(2)material has great research value in HSC,and provides a new research direction for developing high-performance devices.

关键词： Manganese fluoride Potential window Hybrid supercapacitors Electrochemical performance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Photocatalytic dicarboxylation of strained C-C bonds with CO_(2) via consecutive visible-light-induced electron transfer

引用

Chinese Chemical Letters 2024年第6期35卷 268-273页

作者： Yi Liu Zhe-Hao Wang Guan-hua Xue lin Chen Li-hua Yuan Yi-Wen Li Da-Gang Yu jian-Heng Ye Key Laboratory of Green Chemistry&Technology of Ministry of Education College of ChemistrySichuan UniversityChengdu 610064China College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China

Dicarboxylic acids have a wide range of applications in the polymer industry to construct valuable *** has recently emerged as an efficient and sustainable strategy to generate dicarboxylic ***,photocatalytic dicarboxylation with CO_(2) is mainly limited to unsaturated bonds,and the dicarboxylation of C-C single bonds still remains a ***,we report a photocatalytic dicarboxylation of C-C single bonds in strained rings with CO_(2) units via consecutive photo-induced electron transfer(ConPET).It is also the first photocatalytic reductive ring-opening reaction of ***,this transition-metal-free protocol exhibits good functional group tolerance,broad substrate scope,facile scalability,and easy product ***,diacids can easily be derivatized to mainchain liquid crystalline polyesters.

关键词： Consecutive photo-induced electron transfer Visible-light catalysis Dicarboxylation Carbon dioxide Cyclopropanes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Pregnancy outcomes in women with heart disease

引用

Chinese Medical Journal 2010年第17期123卷 2324-2330页

作者： LIU hua XU Ji-wen ZHAO Xu-dong YE Tai-yang lin jian-hua lin Qi-de Department of Obstetrics and Gynecology Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai Obstetrical Cardiology Intensive Care Center Shanghai 200127 China

Background As the Shanghai Obstetrical Cardiology Intensive Care Center, our hospital has accumulated a large number of clinical data of pregnant women with heart disease. This paper is a retrospective analysis of 1142 pregnancies in women with heart disease so as to evaluate the maternal and fetal outcomes of these *** A retrospective analysis was carried out for pregnancies in 1142 women with heart disease who delivered in Shanghai Obstetrical Cardiology Intensive Care Center between 1993 and *** In this study, main heart diseases in pregnancy were arrhythmia （n=359, 31.4%）, congenital heart disease （CHD; n=291,25.5%）, and myocarditis and its sequelae （n=284, 24.9%）; based on the functional classification criteria of New York Heart Association （NYHA）, more than half （n=678, 59.4%） of patients were classified NYHA Class Ⅰ; pregnant women in NHYA Class Ⅰ-Ⅱ （n=951, 83.3%） commonly had arrhythmia, myocarditis and its sequelae, while those in NHYA Class Ⅲ-Ⅳ （n=191, 16.7%） mainly had CHD, rheumatic heart disease （RHD）, cardiopathy induced by hypertensive disorders complicating pregnancy, and peripartum cardiomyopathy （PPCM）. Cardiac failure occurred in 97 （8.5%）patients, and 8 （0.7%） maternal deaths and 12 （1.1%） perinatal deaths were reported in this study. Compared with those in NHYA Class Ⅰ-Ⅱ, women in NHYA Class Ⅲ-Ⅳ had a significantly lower gestational age at birth （P 〈0.05）, lower birth weight （P 〈0.01）, and higher incidence of preterm delivery, small for gestational age and perinatal death （P 〈0.01）. The incidence of cardiac failure in pregnant women with cardiopathy induced by hypertensive disorders complicating pregnancy and PPCM was relatively high, with a rate of 80% and 52.2%, respectively. After cardiac operation, 131（90.3%） women were in classified NHYA Class Ⅰ-Ⅱ and 14 （9.7%） in NHYA Class Ⅲ-Ⅳ.Conclusions Arrhythmia is the type of heart disease that has a highest incidence in patients with heart disease in pregnancy, while main types

关键词： heart disease cardiac function pregnancy outcome

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Qualitative Analysis of Diagnostic Value of 24-h Proteinuria for Preeclampsia

引用

Chinese Medical Journal 2015年第22期128卷 2998-3002页

作者： Xu Zhuang Yun-Yan Chen Qiong Zhou jian-hua lin Department of Obstetrics and Gynecology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China

Background： Preeclarnpsia （PE） is a serious idiopathic disease posing a threat to both mothers and fetuses＇ lives during pregnancy, whose main diagnostic criteria include hypertension with proteinuria. However, American College of Obstetricians and Gynecologists （ACOG） updated the diagnostic criteria for PE and redtlced the diagnostic value of proteinuria for patients with PE. Qualitative analysis of the diagnostic value of 24-h proteinuria for patients with PE in China was conducted to evaluate the diagnostic criteria value in the latest ACOG guideline. Methods： Complete clinical data of 65 patients with hypertensive disorder in pregnancy （HDP） were collected. All patients were delivered to and hospitalized in Renji Hospital. Adverse outcome was defined in case of the emergence of any serious complication for a mother or the fetus. A retrospective study was conducted according to ACOG guideline, to analyze the relationship between each diagnostic criteria of ACOG guideline and maternal and perinatal outcomes. Spearman correlation test was used to detect the association between each diagnostic criterion, its corresponding value, and the adverse pregnancy outcome. Logistic regression was performed to verily the result of Spearman correlation test. Results： Of 65 HDP patients, the percentage of adverse pregnancy outcome was 63.1%. Adverse pregnancy outcomes constitute diversification. There were 55 cases with 24-h proteinuria value ≥0.3 g, of which the adverse outcome rate was 74.5%. While adverse pregnancy outcomes did not appear in the rest 10 HDP patients with proteinuria 〈0.3 /24 h. The statistic difference was significant （P = 0.000）. However, no significant difference was tbund in other criteria groups （impaired liver function： P = 0.417; renal insufficiency： P = 0.194; thrombocytopenia： P - 0.079： and cerebral or visual symptoms： P = 0.296）. The correlation coefficient between 24-h proteinuria ≥0.3 g and adverse pregnancy outcomes was 0.557 （P 〈 0.005）. hnpaire

关键词： American College of Obstetricians and Gynecologists Guideline Hypertensive Disorders in Pregnancy Preeclampsia Pregnancy Outcomes Proteinuria

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：