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https://www.readbyqxmd.com/read/29049831/improving-myocardial-fractional-flow-reserve-in-coronary-atherosclerosis-via-cx37-gene-silence-a-preclinical-validation-study-in-pigs
#1
Suxia Guo, Ying Yang, Zhenyu Yang, Huayan You, Yunke Shi, Zhao Hu, Zhaohui Meng, Jianming Xiao
OBJECTIVES: The purpose of this study was to evaluate the effect of CX37 gene silence on myocardial fractional flow reserve (FFR). METHODS: A total of 90 male pigs were randomly divided into saline, mock and 3 different doses (5, 10 and 20 µl) of CX37 viral suspension groups that could induce coronary plaque formation with high-fat diet. After performing myocardial FFR by intravascular ultrasound, different doses of CX37 viral suspension, saline and mock small interfering RNA (siRNA) were transfected into the related coronary...
July 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049793/triangular-resection-versus-neochordal-replacement-for-posterior-leaflet-prolapse-a-morphological-assessment
#2
Wenrui Ma, Jiafei Chen, Wei Zhang, Weihua Wu, Wei Ye, Wei Shi, Ye Kong
OBJECTIVES: To evaluate the morphological reconstruction as assessed by 3D transoesophageal echocardiography after triangular resection and neochordal replacement in the treatment of posterior leaflet prolapse. METHODS: We retrospectively selected 46 patients with isolated posterior leaflet prolapse who were undergoing mitral valve repair using triangular resection ( n  = 20) and neochordal replacement ( n  = 26) techniques. Sixty patients without valvular heart disease were also included as the control group...
August 14, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049308/the-relationship-between-intradialytic-hypotension-and-vascular-calcification-in-hemodialysis-patients
#3
AJin Cho, Young-Ki Lee, Jieun Oh, Jong-Woo Yoon, Dong Ho Shin, Hee Jung Jeon, Myung-Jin Choi, Jung-Woo Noh
BACKGROUND: Vascular calcification is associated with structural and functional abnormality of the heart and blood vessels. We investigated the relationship between intradialytic hypotension (IDH) and vascular calcification in hemodialysis (HD) patients, and their impacts on cardiovascular events (CVEs). METHOD: We enrolled 191 maintenance HD patients who underwent plain abdomen radiography for abdominal aortic calcification score (AACS). A nadir systolic blood pressure (BP) < 90 mm Hg or the requirement of bolus fluid administration was required to quantify the hypotension diagnosis...
2017: PloS One
https://www.readbyqxmd.com/read/29048771/catecholaminergic-polymorphic-ventricular-tachycardia-an-update
#4
REVIEW
Andrés R Pérez-Riera, Raimundo Barbosa-Barros, Marianne P C de Rezende Barbosa, Rodrigo Daminello-Raimundo, Augusto A de Lucca, Luiz C de Abreu
Catecholaminergic polymorphic ventricular tachycardia is a rare devastating lethal inherited disorder or sporadic cardiac ion channelopathy characterized by unexplained syncopal episodes, and/or sudden cardiac death (SCD), aborted SCD (ASCD), or sudden cardiac arrest (SCA) observed in children, adolescents, and young adults without structural heart disease, consequence of adrenergically mediated arrhythmias: exercise-induced, by acute emotional stress, atrial pacing, or β-stimulant infusion, even when the electrocardiogram is normal...
October 19, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29048241/nanofibrous-electrospun-hdecm-based-hybrid-scaffold-as-wound-dressing-for-reducing-scarring
#5
Tae Hee Kim, Youngmee Jung, Soo Hyun Kim
Produced via electrospinning, poly(l-lactide-co-caprolactone) (PLCL) membranes, which have a porous structure and are biodegradable, are of interest in various medical fields. The porous-structured electrospun membrane is particularly interesting because of several favorable properties: it exudes fluid from the wound, does not build up under the wound covering, and does not cause wound desiccation. Moreover, extracellular matrix (ECM)-based structures derived by tissue decellularization have application as engineered tissue scaffolds and as supports for cellular regeneration...
October 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29048110/morphometric-and-morphologic-parameters-of-the-heart-in-healthy-alouatta-guariba-clamitans-cabrera-1940
#6
Murilo Gomes de Soutello Charlier, Maurício Gianfrancesco Filippi, Carolina Hagy Girotto, Vanessa Lanes Ribeiro, Carlos Roberto Teixeira, Maria Lúcia Gomes Lourenço, Luiz Carlos Vulcano
BACKGROUND: This study aimed at assessing the heart function of one neotropical primate (Alouatta guariba clamitans) kept in captivity using radiography, electrocardiogram (ECG) and Doppler echocardiography. METHODS: Ten adult healthy howler monkeys (A. g. clamitans) were evaluated under general anaesthesia. Vertebral Heart Scores (VHS) were obtained from radiographic studies. Ejection fraction, shortening fraction of left ventricle, left atrial/aortic root ratio, ascending aortic diameter, peak velocity of pulmonary, mitral, tricuspid and aortic blood flow and other values were measured by Doppler echocardiography...
October 19, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/29047356/non-syndromic-cardiac-progeria-in-a-patient-with-the-rare-pathogenic-p-asp300asn-variant-in-the-lmna-gene
#7
Ali J Marian
BACKGROUND: Mutations in LMNA gene, encoding Lamin A/C, cause a diverse array of phenotypes, collectively referred to as laminopathies. The most common manifestation is dilated cardiomyopathy (DCM), occurring in conjunction with variable skeletal muscle involvement but without involvement of the coronary arteries. Much less commonly, LMNA mutations cause progeroid syndromes, whereby an early-onset coronary artery disease (CAD) is the hallmark of the disease. We report a hitherto unreported compound cardiac phenotype, dubbed as "non-syndromic cardiac progeria", in a young patient who carried a rare pathogenic variant in the LMNA gene and developed progressive degeneration of various cardiac structures, as seen in the elderly...
October 18, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/29047005/identification-of-valve-related-artifact-during-cardiac-mapping
#8
Krishna Kancharla, Thomas M Munger, Rick A Nishimura, Abhishek Deshmukh, Douglas L Packer, Samuel J Asirvatham, Suraj Kapa
PURPOSE: During cardiac mapping, it is critical to discriminate signals related to cardiac conduction versus those due to mechanical interaction with other cardiac structures such as valves. We sought to define characteristics that could facilitate discrimination of valve artifact from cardiac conduction signals. METHODS: Patients with structurally normal heart undergoing mapping for ventricular arrhythmias arising from the vicinity of the aortic valve between January 2013 and May 2015 were included...
October 18, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29046675/interpreting-t-cell-cross-reactivity-through-structure-implications-for-tcr-based-cancer-immunotherapy
#9
Dinler A Antunes, Maurício M Rigo, Martiela V Freitas, Marcus F A Mendes, Marialva Sinigaglia, Gregory Lizée, Lydia E Kavraki, Liisa K Selin, Markus Cornberg, Gustavo F Vieira
Immunotherapy has become one of the most promising avenues for cancer treatment, making use of the patient's own immune system to eliminate cancer cells. Clinical trials with T-cell-based immunotherapies have shown dramatic tumor regressions, being effective in multiple cancer types and for many different patients. Unfortunately, this progress was tempered by reports of serious (even fatal) side effects. Such therapies rely on the use of cytotoxic T-cell lymphocytes, an essential part of the adaptive immune system...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29046629/cerebellar-vermis-and-midbrain-hypoplasia-upon-conditional-deletion-of-chd7-from-the-embryonic-mid-hindbrain-region
#10
Alex P A Donovan, Tian Yu, Jacob Ellegood, Kimberley L H Riegman, Christa de Geus, Conny van Ravenswaaij-Arts, Cathy Fernandes, Jason P Lerch, M Albert Basson
Reduced fibroblast growth factor (FGF) signaling from the mid-hindbrain or isthmus organizer (IsO) during early embryonic development results in hypoplasia of the midbrain and cerebellar vermis. We previously reported evidence for reduced Fgf8 expression and FGF signaling in the mid-hindbrain region of embryos heterozygous for Chd7, the gene mutated in CHARGE (Coloboma, Heart defects, choanal Atresia, Retarded growth and development, Genitourinary anomalies and Ear defects) syndrome. However, Chd7(+/-) animals only exhibit mild cerebellar vermis anomalies...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29045589/standardization-of-adult-transthoracic-echocardiography-reporting-in-agreement-with-recent-chamber-quantification-diastolic-function-and-heart-valve-disease-recommendations-an-expert-consensus-document-of-the-european-association-of-cardiovascular-imaging
#11
Maurizio Galderisi, Bernard Cosyns, Thor Edvardsen, Nuno Cardim, Victoria Delgado, Giovanni Di Salvo, Erwan Donal, Leyla Elif Sade, Laura Ernande, Madalina Garbi, Julia Grapsa, Andreas Hagendorff, Otto Kamp, Julien Magne, Ciro Santoro, Alexandros Stefanidis, Patrizio Lancellotti, Bogdan Popescu, Gilbert Habib
Aims: This European Association Cardiovascular Imaging (EACVI) Expert Consensus document aims at defining the main quantitative information on cardiac structure and function that needs to be included in standard echocardiographic report following recent ASE/EACVI chamber quantification, diastolic function, and heart valve disease recommendations. The document focuses on general reporting and specific pathological conditions such as heart failure, coronary artery and valvular heart disease, cardiomyopathies, and systemic diseases...
October 17, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29044308/heart-conduction-system-defects-and-sustained-ventricular-tachycardia-complications-in-a-patient-with-granulomatosis-with-polyangiitis-a-case-report-and-literature-review
#12
Laryssa Passos Sarmento Santos, Victor Guerreiro Bomfim, Camila Fagundes Bezerra, Natália Vieira Costa, Rafael Barreto Paes de Carvalho, Ricardo Sobral de Carvalho, Rogério da Hora Passos, Olivia Carla Bomfim Boaventura, André Luiz Nunes Gobatto
Granulomatosis with polyangiitis is a rare systemic inflammatory disorder characterized by vasculitis of the small arteries, the arterioles and the capillaries together with necrotizing granulomatous lesions. This case reports on a young female patient, previously diagnosed with granulomatosis with polyangiitis, who was admitted to the intensive care unit with seizures and hemodynamic instability due to a complete atrioventricular heart block. The event was associated with multiple episodes of sustained ventricular tachycardia without any structural heart changes or electrolyte disturbances...
July 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29042382/drugs-and-life-threatening-ventricular-arrhythmia-risk-results-from-the-dare-study-cohort
#13
Abigail L Coughtrie, Elijah R Behr, Deborah Layton, Vanessa Marshall, A John Camm, Saad A W Shakir
OBJECTIVES: To establish a unique sample of proarrhythmia cases, determine the characteristics of cases and estimate the contribution of individual drugs to the incidence of proarrhythmia within these cases. SETTING: Suspected proarrhythmia cases were referred by cardiologists across England between 2003 and 2011. Information on demography, symptoms, prior medical and drug histories and data from hospital notes were collected. PARTICIPANTS: Two expert cardiologists reviewed data for 293 referred cases: 130 were included...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29040978/hydrogen-rich-saline-attenuates-brain-injury-induced-by-cardiopulmonary-bypass-and-inhibits-microvascular-endothelial-cell-apoptosis-via-the-pi3k-akt-gsk3%C3%AE-signaling-pathway-in-rats
#14
Keyan Chen, Nan Wang, Yugang Diao, Wanwei Dong, YingJie Sun, Lidan Liu, Xiuying Wu
BACKGROUND/AIMS: Cardiopulmonary bypass (CPB) is prone to inducing brain injury during open heart surgery. A hydrogen-rich solution (HRS) can prevent oxidation and apoptosis, and inhibit inflammation. This study investigated effects of HRS on brain injury induced by CPB and regulatory mechanisms of the PI3K/Akt/GSK3β signaling pathway. METHODS: A rat CPB model and an in vitro cell hypoxia model were established. After HRS treatment, Rat behavior was measured using neurological deficit score; Evans blue (EB) was used to assess permeability of the blood-brain barrier (BBB); HE staining was used to observe pathological changes; Inflammatory factors and brain injury markers were detected by ELISA; the PI3K/Akt/GSK3β pathway-related proteins and apoptosis were assessed by western blot, immunohistochemistry and qRT -PCR analyses of brain tissue and neurons...
October 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29040414/luma-is-not-essential-for-murine-cardiac-development-and-function
#15
Matthew John Stroud, Xi Fang, Jianlin Zhang, Nuno Guimarães-Camboa, Jennifer Veevers, Nancy D Dalton, Yusu Gu, William H Bradford, Kirk L Peterson, Sylvia M Evans, Larry Gerace, Ju Chen
Aims: Luma is a recently discovered, evolutionarily conserved protein expressed in mammalian heart that is associated with the LInker of Nucleoskeleton and Cytoskeleton (LINC) complex. The LINC complex structurally integrates the nucleus and the cytoplasm, and plays a critical role in mechanotransduction across the nuclear envelope. Mutations in several LINC components in both humans and mice result in various cardiomyopathies, implying they play essential, non-redundant roles. A single amino acid substitution of serine 358 to leucine (S358L) in LUMA is the unequivocal cause of a distinct form of arrhythmogenic cardiomyopathy...
October 12, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29039838/-atrial-septal-aneurysm-evolution-of-diagnostic-and-clinical-judgements
#16
A S Rudoy, A A Bova, T A Nekhaichik
The article discusses anatomical and clinical judgements on atrial septal aneurysm (ASA) as a primary cardiac structural abnormality. It presents current approaches to the classification of ASA and its echocardiographic diagnosis. Special attention is focused on the clinical significance of ASA as an isolated anomaly and concurrent with other structural abnormalities of the heart, especially from the standpoint of a risk of cardioembolic stroke.
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29039831/-comparative-analysis-of-mortality-from-acute-forms-of-ischemic-heart-disease-during-a-15-year-period-in-the-russian-federation-and-the-united-states-and-the-factors-influencing-its-formation
#17
S A Boytsov, I V Samorodskaya, N N Nikulina, S S Yakushin, E M Andreev, O V Zaratyants, O L Barbarash
AIM: To comparatively analyze the registered mortality rates from coronary heart disease (CHD) as a whole, as well as myocardial infarction (MI) and other acute forms of CHD during a 15-year period in the Russian Federation (RF, 2000-2014) and the United States of America (USA, 1999-2013). MATERIAL AND METHODS: Primary data were obtained from the database of the RF State Statistics Service, the World Health Organization Mortality Database, Human Mortality Database, then converted into standardized mortality rates and are presented in three age groups (30+, 30-49, and 50+ years old) in men and women separately...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29039548/-corrigendum-farnesoid-x-receptor-deletion-improves-cardiac-function-structure-and-remodeling-following-myocardial-infarction-in-mice
#18
Jianshu Gao, Xiaoqiang Liu, Bingjian Wang, Haiyan Xu, Qiang Xia, Tianfei Lu, Fang Wang
Following the publication of this article, an interested reader drew to our attention that we had incorrectly reported (in the Materials and methods section, 'Western blot analysis', on p. 674) that the anti-farnesoid X receptor (FXR) antibody of Cell Signalling Technology, Inc., cat. no. #12295, had been used in this study to probe for FXR. In fact, the antibodies used in the above-mentioned study were a gift from the group of Dr Xin-Liang Ma at Thomas Jefferson University (Philadelphia, PA, USA), as referenced in the following article: [Pul J, Yuan A, Shan P, Gao E, Wang X, Wang Y, Lau WB, Koch W, Xin-Ma XL and He B: Cardiomyocyte-expressed farnesoid-X-receptor is a novel apoptosis mediator and contributes to myocardial ischaemia/reperfusion injury...
October 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29036995/-association-of-alcohol-use-and-incidence-of-type-2-diabetes-mellitus-in-the-middle-aged-and-elderly-male-population-a-prospective-cohort-study
#19
Y Z Zhang, Y Q Yu, Y Yuan, M A He, T C Wu
Objective: To investigate the association between alcohol use and incidence of type 2 diabetes mellitus (T2DM) in the middle-aged and elderly male population. Methods: All participants were from Dongfeng-Tongji cohort, 27 009 retired employees from Dongfeng Motor Corporation in Hubei Province were enrolled in the Dongfeng-Tongji cohort baseline survey in 2008. In baseline study, information of alcohol use and other covariates were collected by semi-structured questionnaire and all participants completed physical examination including the test of fasting glucose and blood lipid levels...
October 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29036994/-trend-analysis-of-the-burden-of-ischemic-heart-disease-in-china-1990-to-2015
#20
G S Zhang, C H Yu, L S Luo, Y C Li, X Y Zeng
Objective: The objective of this study is to analyze the trend of burden of ischemic heart disease (IHD) in China between 1990 and 2015. Methods: Data were collected from the results of 2015 Global Burden of Disease Study. We arranged and analyzed the mortality and disability-adjusted life year (DALY) for IHD by sexes, ages and provinces (excluding Taiwan, China) in China between 1990 and 2015. The age-standardized rates were determined using the average world population age structure in the period of 2010-2035 as a reference, and the changes of the related indicators were calculated...
October 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
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