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《医学前沿(英文)》 2021年 第15卷 第3期 页码 416-437 doi: 10.1007/s11684-021-0852-7
关键词: surgical aortic valve replacement trans-catheter aortic valve implantation left ventricular hypertrophy and fibrosis myocardial force-velocity relationship His-Purkinje pacing renin-angiotensin system inhibitors coronary access impairment
Incremental value of contrast echocardiography in the diagnosis of left ventricular noncompaction
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《医学前沿(英文)》 2016年 第10卷 第4期 页码 499-506 doi: 10.1007/s11684-016-0473-8
Contrast echocardiography with left ventricular opacification (LVO) improves the definition of endocardium in two-dimensional echocardiography (2DE). This study was aimed to determine whether LVO offered added diagnostic value in noncompaction of left ventricular myocardium (NCVM). A total of 85 patients (40±20 years, 54 males) with suspected NCVM were subjected to transthoracic 2DE and LVO, and 40 healthy volunteers were examined with 2DE and assigned as control subjects. The location of NCVM, the thickness ratio of noncompacted to compacted myocardium (NCR), and the cavity size and ejection fraction of LV were quantified. Results revealed that NCVM was mainly located in the LV medium (53.2%), apical (46.2%) segments, and lateral wall (39.8%). The NCR obtained through LVO was greater than that detected through 2DE (4.2±1.3 vs. 3.3±1.2, P<0.001), and higher inter-correlations and less intra- and inter-observer variabilities were determined in the former than in the latter. The NCVM detection rates were also increased from 63.5% via 2DE to 83.5% via LVO and 89.4% via 2DE combined with LVO (2DE+ LVO) (P = 0.0004). The LV cavity size was greater and the LV ejection fraction (LVEF) was lower in the NCVM patients than in the control group (P<0.01). In the NCVM group, the LV cavity size was higher and the LVEF was lower in LVO than in 2DE (P<0.01). In conclusion, contrast echocardiography contributes significant sensitivity and reproducibility to routine transthoracic echocardiography in NCVM diagnosis. Therefore, this technique should be clinically performed to diagnose suspected NCVM.
关键词: echocardiography left ventricular noncompaction cardiomyopathy echo contrast media
Wei HAN MM, Ming-Xing XIE MD, Qing LV MD, Xin-Fang WANG MD, Li ZHANG MM,
《医学前沿(英文)》 2010年 第4卷 第1期 页码 71-76 doi: 10.1007/s11684-010-0006-9
关键词: echocardiography twist two-dimensional strain imaging coronary artery disease
Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang
《医学前沿(英文)》 2021年 第15卷 第1期 页码 70-78 doi: 10.1007/s11684-020-0749-x
关键词: myocardial infarction percutaneous coronary intervention diabetes mellitus fasting glucose heart failure
ZHANG Jingqun, SUN Honglei, MA Yexin, WANG Daowen
《医学前沿(英文)》 2008年 第2卷 第1期 页码 19-24 doi: 10.1007/s11684-008-0005-2
关键词: therapy Sprague administration cardiac hypertrophy valsartan
《医学前沿(英文)》 2023年 第17卷 第1期 页码 75-84 doi: 10.1007/s11684-022-0950-1
关键词: drug-coated balloon left main high bleeding risk predilatation calcifield lesion percutaneous coronary intervention
Houjuan Zuo, Rui Li, Fei Ma, Jiangang Jiang, Kun Miao, Haojie Li, Eike Nagel, Marijana Tadic, Hong Wang, Dao Wen Wang
《医学前沿(英文)》 2020年 第14卷 第3期 页码 284-292 doi: 10.1007/s11684-019-0713-9
关键词: fulminant myocarditis acute myocarditis 2D speckle tracking echocardiography left ventricular function global longitudinal strain
Strategies for preventing peritoneal fibrosis in peritoneal dialysis patients: new insights based on
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《医学前沿(英文)》 2017年 第11卷 第3期 页码 349-358 doi: 10.1007/s11684-017-0571-2
Peritoneal dialysis (PD) is an established form of renal replacement therapy. Long-term PD leads to morphologic and functional changes to the peritoneal membrane (PM), which is defined as peritoneal fibrosis, a known cause of loss of peritoneal ultrafiltration capacity. Inflammation and angiogenesis are key events during the pathogenesis of peritoneal fibrosis. This review discusses the pathophysiology of peritoneal fibrosis and recent research progress on key fibrogenic molecular mechanisms in peritoneal inflammation and angiogenesis, including Toll-like receptor ligand-mediated, NOD-like receptor protein 3/interleukin-1β, vascular endothelial growth factor, and angiopoietin-2/Tie2 signaling pathways. Furthermore, novel strategies targeting peritoneal inflammation and angiogenesis to preserve the PM are discussed in depth.
关键词: peritoneal dialysis peritoneal fibrosis inflammation angiogenesis
Expression of integrin in hepatic fibrosis and intervention of resveratrol
Jianye WU, Chuanyong GUO, Jun LIU, Xuanfu XUAN
《医学前沿(英文)》 2009年 第3卷 第1期 页码 100-107 doi: 10.1007/s11684-009-0013-x
关键词: liver fibrosis integrin-β1 resveratrol tumor growth factor-β tissue inhibitor of metalloproteinase-1
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《医学前沿(英文)》 2014年 第8卷 第4期 页码 445-455 doi: 10.1007/s11684-014-0378-3
Recent evidences suggested that cyclic guanosine monophosphate-specific phosphodiesterase 5 (PDE5) inhibitor represents an important therapeutic target for cardiovascular diseases. Whether and how it ameliorates cardiac fibrosis, a major cause of diastolic dysfunction and heart failure, is unknown. The purpose of this study was to investigate the effects of PDE5 inhibitor on cardiac fibrosis. We assessed cardiac fibrosis and pathology in mice subjected to transverse aortic constriction (TAC). Oral sildenafil, a PDE5 inhibitor, was administered in the therapy group. In control mice, 4 weeks of TAC induced significant cardiac dysfunction, cardiac fibrosis, and cardiac fibroblast activation (proliferation and transformation to myofibroblasts). Sildenafil treatment markedly prevented TAC-induced cardiac dysfunction, cardiac fibrosis and cardiac fibroblast activation but did not block TAC-induced transforming growth factor-β1 (TGF-β1) production and phosphorylation of Smad2/3. In isolated cardiac fibroblasts, sildenafil blocked TGF-β1-induced cardiac fibroblast transformation, proliferation and collagen synthesis. Furthermore, we found that sildenafil induced phosphorylated cAMP response element binding protein (CREB) and reduced CREB-binding protein 1 (CBP1) recruitment to Smad transcriptional complexes. PDE5 inhibition prevents cardiac fibrosis by reducing CBP1 recruitment to Smad transcriptional complexes through CREB activation in cardiac fibroblasts.
关键词: PDE5 cardiac fibrosis TGF-β CREB
Sudden death due to arrhythmogenic right ventricular cardiomyopathy: Two case reports
CHEN Xinshan, ZHANG Yigu, RAO Guangxun, HUANG Guangzhao
《医学前沿(英文)》 2007年 第1卷 第3期 页码 338-342 doi: 10.1007/s11684-007-0065-8
关键词: sarcoplasmic coagulation acquired ventricular myocardium sino-atrial autopsied
Acetyl salicylic acid attenuates cardiac hypertrophy through Wnt signaling
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 444-456 doi: 10.1007/s11684-015-0421-z
Ventricular hypertrophy is a powerful and independent predictor of cardiovascular morbid events. The vascular properties of low-dose acetyl salicylic acid (aspirin) provide cardiovascular benefits through the irreversible inhibition of platelet cyclooxygenase 1; however, the possible anti-hypertrophic properties and potential mechanism of aspirin have not been investigated in detail. In this study, healthy wild-type male mice were randomly divided into three groups and subjected to transverse aortic constriction (TAC) or sham operation. The TAC-operated mice were treated with the human equivalent of low-dose aspirin (10 mg·kg−1·d−1); the remaining mice received an equal amount of phosphate buffered saline with 0.65% ethanol, which was used as a vehicle. A cardiomyocyte hypertrophy model induced by angiotensin II (10 nmol·L−1) was treated with the human equivalent of low (10 or 100 µmol·L−1) and high (1000 µmol·L−1) aspirin concentrations in plasma. Changes in the cardiac structure and function were assessed through echocardiography and transmission electron microscopy. Gene expression was determined through RT-PCR and western blot analysis. Results indicated that aspirin treatment abrogated the increased thickness of the left ventricular anterior and posterior walls, the swelling of mitochondria, and the increased surface area in in vivo and in vitro hypertrophy models. Aspirin also normalized the upregulated hypertrophic biomarkers, β-myosin heavy chain (β-MHC), atrial natriuretic peptide (ANP), and b-type natriuretic peptide (BNP). Aspirin efficiently reversed the upregulation of β-catenin and P-Akt expression and the TAC- or ANG II-induced downregulation of GSK-3β. Therefore, low-dose aspirin possesses significant anti-hypertrophic properties at clinically relevant concentrations for anti-thrombotic therapy. The downregulation of β-catenin and Akt may be the underlying signaling mechanism of the effects of aspirin.
Liru Qiu, Fengjie Yang, Yonghua He, Huiqing Yuan, Jianhua Zhou
《医学前沿(英文)》 2018年 第12卷 第5期 页码 550-558 doi: 10.1007/s11684-017-0567-y
Cystic fibrosis (CF) is a fatal autosomal-recessive disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene. CF is characterized by recurrent pulmonary infection with obstructive pulmonary disease. CF is common in the Caucasian population but is rare in the Chinese population. The symptoms of early-stage CF are often untypical and may sometimes manifest as Bartter syndrome (BS)-like hypokalemic alkalosis. Therefore, the ability of doctors to differentiate CF from BS-like hypokalemic alkalosis in Chinese infants is a great challenge in the timely and accurate diagnosis of CF. In China, sporadic CF has not been diagnosed in children younger than three years of age to date. Three infants, who were initially admitted to our hospital over the period of June 2013 to September 2014 with BS-like hypokalemic alkalosis, were diagnosed with CF through exome sequencing and sweat chloride measurement. The compound heterozygous mutations of the CFTR gene were detected in two infants, and a homozygous missense mutation was found in one infant. Among the six identified mutations, two are novel point mutations (c.1526G>C and c.3062C>T) that are possibly pathogenic. The three infants are the youngest Chinese patients to have been diagnosed with sporadic CF at a very early stage. Follow-up examination showed that all of the cases remained symptom-free after early intervention, indicating the potential benefit of very early diagnosis and timely intervention in children with CF. Our results demonstrate the necessity of distinguishing CF from BS in Chinese infants with hypokalemic alkalosis and the significant diagnostic value of powerful exome sequencing for rare genetic diseases. Furthermore, our findings expand the CFTR mutation spectrum associated with CF.
关键词: cystic fibrosis pseudo-Bartter syndrome hypokalemic alkalosis CFTR gene mutations infants diagnosis
Zhiming ZHAO, Xihua WANG
《结构与土木工程前沿(英文)》 2013年 第7卷 第3期 页码 332-340 doi: 10.1007/s11709-013-0206-x
关键词: slope stability strength properties model test numerical analysis
ZHANG Xiaomei, JIANG Liangduo, ZHANG Wei, WU Jianjun, LU Xiangfeng
《医学前沿(英文)》 2008年 第2卷 第3期 页码 314-316 doi: 10.1007/s11684-008-0060-8
关键词: bleomycin intratracheal injection prednisone collagen bleomycin-induced pulmonary
标题 作者 时间 类型 操作
Challenges and opportunities in improving left ventricular remodelling and clinical outcome following
期刊论文
Incremental value of contrast echocardiography in the diagnosis of left ventricular noncompaction
null
期刊论文
Assessment of global and regional left ventricular twist and displacement in anterior myocardial infarction
Wei HAN MM, Ming-Xing XIE MD, Qing LV MD, Xin-Fang WANG MD, Li ZHANG MM,
期刊论文
Prognostic value of fasting glucose on the risk of heart failure and left ventricular systolic dysfunction
Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang
期刊论文
Effects of RNA interference targeting angiotensin 1a receptor on blood pressure and cardiac hypertrophy
ZHANG Jingqun, SUN Honglei, MA Yexin, WANG Daowen
期刊论文
Drug-coated balloon-only strategy for percutaneous coronary intervention of left main coronary artery
期刊论文
Temporal echocardiography findings in patients with fulminant myocarditis: beyond ejection fraction decline
Houjuan Zuo, Rui Li, Fei Ma, Jiangang Jiang, Kun Miao, Haojie Li, Eike Nagel, Marijana Tadic, Hong Wang, Dao Wen Wang
期刊论文
Strategies for preventing peritoneal fibrosis in peritoneal dialysis patients: new insights based on
null
期刊论文
Expression of integrin in hepatic fibrosis and intervention of resveratrol
Jianye WU, Chuanyong GUO, Jun LIU, Xuanfu XUAN
期刊论文
Chronic inhibition of cyclic guanosine monophosphate-specific phosphodiesterase 5 prevented cardiac fibrosis
null
期刊论文
Sudden death due to arrhythmogenic right ventricular cardiomyopathy: Two case reports
CHEN Xinshan, ZHANG Yigu, RAO Guangxun, HUANG Guangzhao
期刊论文
Clinical characterization and diagnosis of cystic fibrosis through exome sequencing in Chinese infants
Liru Qiu, Fengjie Yang, Yonghua He, Huiqing Yuan, Jianhua Zhou
期刊论文
Evaluation of potential failure of rock slope at the left abutment of Jinsha River Bridge by model test
Zhiming ZHAO, Xihua WANG
期刊论文