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https://www.readbyqxmd.com/read/27915452/chronic-enalapril-treatment-increases-transient-outward-potassium-current-in-cardiomyocytes-isolated-from-right-ventricle-of-spontaneously-hypertensive-rats
#1
Luiz Fernando Rodrigues Junior, Ana Carolina de Azevedo Carvalho, Enildo Broetto Pimentel, José Geraldo Mill, José Hamilton Matheus Nascimento
It has been well established that chronic pressure overload resulting from hypertension leads to ventricular hypertrophy and electrophysiological remodeling. The transient outward potassium current (I to) reduction described in hypertensive animals delays ventricular repolarization, leading to complex ventricular arrhythmias and sudden death. Antihypertensive drugs, as angiotensin-converting enzyme inhibitors (ACEi), can restore I to and reduce the incidence of arrhythmic events. The purpose of this study was to evaluate the differential effects of long-term treatment with ACEi or direct-acting smooth muscle relaxant on the I to of left and right ventricle myocytes of spontaneously hypertensive rats (SHR)...
December 3, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27909278/-surgical-treatment-of-right-atrial-malignant-tumor-thrombus-under-deep-hypothermia-with-intermittent-circulatory-arrest-report-of-two-cases
#2
Akira Fujita, Toshiro Kobayashi, Hideharu Hironaka, Mitsutaka Jinbou, Naomasa Uesugi, Satoshi Saito, Tsuyoshi Takahashi, Hidenori Gohra
Right atrial tumor thrombus is rare in patients with visceral malignant tumors and can cause right heart failure or sudden death. We present 2 cases of right atrial tumor thrombus treated under deep hypothermic intermittent circulatory arrest (DHICA). A 45-year-old man with right heart failure was diagnosed with right renal cancer extending to the right atrium. Computed tomography revealed no metastasis. He underwent right nephrectomy and tumor thrombus resection under DHICA. He was discharged on postoperative day 11 in good clinical course...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908349/truncating-flnc-mutations-are-associated-with-high-risk-dilated-and-arrhythmogenic-cardiomyopathies
#3
Martín F Ortiz-Genga, Sofía Cuenca, Matteo Dal Ferro, Esther Zorio, Ricardo Salgado-Aranda, Vicente Climent, Laura Padrón-Barthe, Iria Duro-Aguado, Juan Jiménez-Jáimez, Víctor M Hidalgo-Olivares, Enrique García-Campo, Chiara Lanzillo, M Paz Suárez-Mier, Hagith Yonath, Sonia Marcos-Alonso, Juan P Ochoa, José L Santomé, Diego García-Giustiniani, Jorge L Rodríguez-Garrido, Fernando Domínguez, Marco Merlo, Julián Palomino, María L Peña, Juan P Trujillo, Alicia Martín-Vila, Davide Stolfo, Pilar Molina, Enrique Lara-Pezzi, Francisco E Calvo-Iglesias, Eyal Nof, Leonardo Calò, Roberto Barriales-Villa, Juan R Gimeno-Blanes, Michael Arad, Pablo García-Pavía, Lorenzo Monserrat
BACKGROUND: Filamin C (encoded by the FLNC gene) is essential for sarcomere attachment to the plasmatic membrane. FLNC mutations have been associated with myofibrillar myopathies, and cardiac involvement has been reported in some carriers. Accordingly, since 2012, the authors have included FLNC in the genetic screening of patients with inherited cardiomyopathies and sudden death. OBJECTIVES: The aim of this study was to demonstrate the association between truncating mutations in FLNC and the development of high-risk dilated and arrhythmogenic cardiomyopathies...
December 6, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27908250/hypoglycemia-and-cardiac-arrhythmia-mechanisms-evidence-base-and-current-recommendations
#4
Sitara Gulrukh Khan, Mohammed Shahriar Huda
BACKGROUND: With the use of intensive insulin therapy and insulin secretagogues to optimize glycemic control in diabetes, hypoglycemia continues to present a clinical challenge. Hypoglycemia has been implicated in nocturnal sudden death in type 1 diabetes, and the mechanism underlying this is postulated to be cardiac arrhythmia. OBJECTIVE: This article reviews the evidence surrounding hypoglycemia and cardiac arrhythmia. METHODS: A structured search of the Pubmed bibliographic database was undertaken, and relevant peer-reviewed articles on the topic were included in the review...
December 1, 2016: Current Diabetes Reviews
https://www.readbyqxmd.com/read/27903458/cardiac-arrest-among-patients-with-infections-causes-clinical-practice-and-research-implications
#5
REVIEW
Davide Leoni, Jordi Rello
The incidence of sepsis is increasing, and the condition is now the leading cause of death in general intensive care units (ICUs). Our review failed to identify studies of the causes of cardiac arrest among infected patients, even though non-cardiac causes represent 15% of out-of-hospital cardiac arrests and though one-third of events have positive blood cultures. Sudden cardiac arrest is the result of local damage to the heart and of the impact of systemic and pulmonary conditions on cardiac performance, and its danger is underestimated...
November 26, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27903393/-a-multi-center-study-on-the-long-term-mortality-and-related-risk-factors-in-patients-with-chronic-heart-failure-receiving-resynchronization-therapy
#6
S Y Qi, D M Wang, H B Yu, C Ding, F L Tian, L S Ru, J Li, B Zhang, Y L Han
Objective: To analyze long-term mortality and patients characteristics of cardiac resynchronization therapy (CRT) for patients with chronic heart failure. Methods: In-patients with chronic heart failure who received CRT in the three medical centers(Bethune International Peace Hospital, General Hospital of Shenyang Military Command of Chinese People's Liberation Army, and 251 Hospital of People's Liberation Army)from March 2001 to June 2013 were included.Mortality and related causes, echocardiographic parameters were analyzed...
November 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27899944/epidemiology-and-genetics-of-ventricular-fibrillation-during-acute-myocardial-infarction
#7
REVIEW
Charlotte Glinge, Stefan Sattler, Reza Jabbari, Jacob Tfelt-Hansen
Sudden cardiac death (SCD) from ventricular fibrillation (VF) during coronary artery disease (CAD) is a leading cause of total and cardiovascular mortality, and in more than half of SCD cases VF occurs as the first symptom of CAD. Several epidemiological studies have shown that sudden death of a family member is a risk factor for SCD and VF during acute myocardial infarction (MI), independent of traditional risk factors including family history of MI, suggesting a genetic component in the susceptibility to VF...
September 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/27899864/right-ventricle-mimics-right-atrium-at-first-glance-a-rare-case-of-congenital-right-sided-partial-pericardial-defect
#8
Meitzu Wang, Tien-Yu Chang, Wei-Hsian Yin, Yung-Nien Yang
Among heart irregularities, congenital pericardial defect is an unusual anomaly, and is typically left dominant. However, cases of right pericardial defect with heart herniation are extremely rare. This is a case of congenital right pericardial defect with herniation of the right ventricle free wall and right ventricular outflow tract. The patient is asymptomatic and refused further intervention but even indolent discomfort underscores the risks of iatrogenic injuries to the heart and sudden death caused by mechanical pathogenesis due to changes in anatomical positions of the cardiac structures...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27899697/sudden-death-of-a-child-due-to-pyogenic-bacterial-myocarditis
#9
Asit K Sikary, Asit R Mridha, Chittaranjan Behera
Bacterial myocarditis is an uncommon condition and only a few fatal cases in adults are reported in the scientific literature. Death from acute bacterial myocarditis in children is extremely rare. We report an unusual case of fatal bacterial myocarditis in a seven-year-old girl, who had a history of cough for a month and fever for two days. She was given symptomatic treatment by a local physician without suspecting her clinical condition. Her condition rapidly deteriorated and she was brought in dead to the hospital...
November 28, 2016: Medico-legal Journal
https://www.readbyqxmd.com/read/27899394/stress-activated-kinase-mkk7-governs-epigenetics-of-cardiac-repolarization-for-arrhythmia-prevention
#10
Sanjoy K Chowdhury, Wei Liu, Min Zi, Yatong Li, Shunyao Wang, Hoyee Tsui, Sukhpal Prehar, Simon J Castro, Henggui Zhang, Yong Ji, Xiuqin Zhang, Rui-Ping Xiao, Rongli Zhang, Ming Lei, Lukas Cyganek, Kaomei Guan, Catherine B Millar, Xudong Liao, Mukesh K Jain, Mark R Boyett, Elizabeth J Cartwright, Holly A Shiels, Xin Wang
BACKGROUND: -Ventricular arrhythmia is a leading cause of cardiac mortality. Most antiarrhythmics present paradoxical pro-arrhythmic side effects, culminating in a greater risk of sudden death. METHODS: -We describe a new regulatory mechanism linking mitogen-activated kinase kinase-7 (MKK7) deficiency with increased arrhythmia vulnerability in hypertrophied and failing hearts using mouse models harbouring MKK7 knockout or overexpression. The human relevance of this arrhythmogenic mechanism is evaluated in human induced pluripotent stem cells-derived cardiomyocytes (iPSC-CMs)...
November 29, 2016: Circulation
https://www.readbyqxmd.com/read/27895910/proteomic-identification-of-cryostress-in-epididymal-spermatozoa
#11
Sung Jae Yoon, Md Saidur Rahman, Woo Sung Kwon, Do Yeal Ryu, Yoo Jin Park, Myung Geol Pang
BACKGROUND: Cryopreservation of epididymal spermatozoa is important in cases in which it is not possible to collect semen using normal methods, as the sudden death of an animal or a catastrophic injury. However, the freezing and thawing processes cause stress to spermatozoa, including cold shock, osmotic damage, and ice crystal formation, thereby reducing sperm quality. We assessed the motility (%), motion kinematics, capacitation status, and viability of spermatozoa using computer-assisted sperm analysis and Hoechst 33258/chlortetracycline fluorescence staining...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27894966/quantitative-proteomic-changes-during-post-myocardial-infarction-remodeling-reveals-altered-cardiac-metabolism-and-desmin-aggregation-in-the-infarct-region
#12
Kaberi Datta, Trayambak Basak, Swati Varshney, Shantanu Sengupta, Sagartirtha Sarkar
: Myocardial infarction is one of the leading causes of cardiac dysfunction, failure and sudden death. Post infarction cardiac remodeling presents a poor prognosis, with 30%-45% of patients developing heart failure, in a period of 5-25years. Oxidative stress has been labelled as the primary causative factor for cardiac damage during infarction, however, the impact it may have during the process of post infarction remodeling has not been well probed. In this study, we have implemented iTRAQ proteomics to catalogue proteins and functional processes, participating both temporally (early and late phases) and spatially (infarct and remote zones), during post myocardial infarction remodeling of the heart as functions of the differential oxidative stress manifest during the remodeling process...
November 25, 2016: Journal of Proteomics
https://www.readbyqxmd.com/read/27894411/allele-specific-pcr-and-melting-curve-analysis-showed-relatively-high-frequency-of-%C3%AE-casein-gene-a1-allele-in-iranian-holstein-simmental-and-native-cows
#13
M Gholami, S H Hafezian, G Rahimi, A Farhadi, Z Rahimi, D Kahrizi, S Kiani, H Karim, S Vaziri, S Muhammadi, F Veisi, K Ghadiri, H Shetabi, J Zargooshi
There are two allelic forms of A1 and A2 of β-casein gene in dairy cattle. Proteolytic digestion of bovine β-casein A1 type produces bioactive peptide of β-casomorphin-7 known as milk devil. β-casomorphin-7 causes many diseases, including type 1 diabetes, cardiovascular disease syndrome, sudden death and madness. The aim of the present study was to determine the different allelic forms of β-casein gene in Iranian Holstein, Simmental and native cattle in order to identify A1 and A2 variants. The blood samples were collected randomly and DNA was extracted using modified salting out method...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27894321/encephalomyocarditis-virus-infection-in-macaca-sylvanus-and-hystrix-cristata-from-an-italian-rescue-centre-for-wild-and-exotic-animals
#14
Giusy Cardeti, Valeria Mariano, Claudia Eleni, Marco Aloisi, Goffredo Grifoni, Stefania Sittinieri, Giampiero Dante, Valeria Antognetti, Efrem Alessandro Foglia, Antonella Cersini, Alberigo Nardi
BACKGROUND: The Encephalomyocarditis virus (EMCV) is a small, non enveloped, positive sense single-stranded RNA virus in the genus Cardiovirus, family Picornaviridae, with two known serotypes. It is spread worldwide and infects a huge range of vertebrate hosts with zoonotic potential for humans. The pig is the mammal most likely to be impacted on with the disease, but EMCV occurrence has also been reported in non-human primates and in a variety of domestic, captive and wild animals. Until now, human cases have been very rare and the risk appears to be almost negligible in spite of human susceptibility to the infection...
November 28, 2016: Virology Journal
https://www.readbyqxmd.com/read/27891698/vaccination-and-unexplained-sudden-death-risk-in-taiwanese-infants
#15
Wan-Ting Huang, Robert T Chen, Yu-Chen Hsu, John W Glasser, Philip H Rhodes
PURPOSE: In March 1992, eight infants who had died within 36 hours of receiving whole-cell pertussis vaccine (diphtheria, tetanus, and whole-cell pertussis [DTwP]) prompted the Taiwan health authorities to suspend its use. We conducted an investigation of vaccination and sudden unexplained infant death (SUID) and repeated it more recently after Taiwan switched to acellular pertussis vaccine (diphtheria, tetanus, and acellular pertussis [DTaP]) in 2010. METHODS: All SUIDs aged 31-364 days during 1990-1992 and 1996-2013 were selected from the death registration databases...
November 28, 2016: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/27891566/sudden-death-associated-with-syndromic-craniosynostosis
#16
Alžbeta Ginelliová, Daniel Farkaš, Silvia Farkašová Iannaccone, Vlasta Vyhnálková, Peter Vasovčák
In this paper we report the autopsy findings of a 7 year old girl who presented with headache, nausea and repeated vomiting and died unexpectedly at home. She had no previous history of major illnesses and no history of epileptic seizures. External examination revealed ocular abnormalities. Internal examination demonstrated severe cerebral edema with tonsillar herniation, premature fusion of the cranial bone sutures, and prominent convolutional markings of the inner table of the skull. Death was due to severe cerebral edema complicating syndromic craniosynostosis...
November 28, 2016: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/27890882/a-case-of-brugada-syndrome-which-developed-status-epilepticus
#17
Misa Matsui, Kimiko Inoue, Harutoshi Fujimura, Saburo Sakoda
A 35-year-old man showed a convulsive attack with consciousness loss and was suspected of having Brugada syndrome 6 months prior to admission to our hospital. At the initial examination, the patient showed conjugate deviation, followed by left limb convulsions and consciousness loss. He regained consciousness after 1 minute, though cardiac arrest from ventricular fibrillation was noted during an electroencephalography (EEG) examination. Sinus rhythm recovered with defibrillation, though the convulsions persisted and a Status Epilepticus developed...
November 25, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27890878/prevalence-of-electrocardiographic-abnormalities-in-patients-with-myasthenia-gravis
#18
Jun Tsugawa, Masahiro Ogawa, Shinji Ouma, Jiro Fukae, Yoshio Tsuboi
OBJECTIVE: Myasthenia gravis (MG) is an immunological disorder of the neuromuscular junction, characterized by easy fatigability and weakness of the skeletal muscles. However, it has sometimes been reported that heart diseases including cardiomyopathies leading to sudden death have been observed in patients with MG. We studied the prevalence of electrocardiographic (ECG) abnormalities and heart disease in patients newly diagnosed with MG who had not received immunotherapy. METHODS: Fifty-three patients with MG were enrolled in our study...
November 25, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27888304/the-wearable-cardioverter-defibrillator-in-a-real-world-clinical-setting-experience-in-102-consecutive-patients
#19
Julia W Erath, Mate Vamos, Abdul Sami Sirat, Stefan H Hohnloser
BACKGROUND: The wearable cardioverter-defibrillator (WCD) is used for temporary protection of patients deemed to be at high risk for sudden death (SCD) not yet meeting indications for the implantable defibrillator (ICD). OBJECTIVES: To evaluate the efficacy, safety, and compliance of/to WCD use and subsequent medium-term outcome of patients in a single-center observational study. METHODS: A total of 102 consecutive patients were fitted with the WCD from 2012 to 2015 and followed for a mean of 11 months (±8 months)...
November 25, 2016: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/27888016/post-transplantation-cyclophosphamide-and-ixazomib-combination-rescues-mice-subjected-to-experimental-gvhd-and-is-superior-to-either-agent-alone
#20
A Samer Al-Homsi, Austin Goodyke, Michael McLane, Sarah Abdel-Mageed, Kelli Cole, Marlee Muilenburg, Yuxin Feng
Lapses in the prevention of graft-versus-host disease (GvHD) following allogeneic hematopoietic stem cell transplantation (HSCT) warrants novel approaches. Such approaches include, among others, the use of post-transplantation cyclophosphamide (PTC) and proteasome inhibitors. Although PTC alone consistently produces low rates of chronic GvHD, the incidence of acute GvHD remains significant. Inversely, prolonged post-transplantation administration of proteasome inhibitors carries a risk of paradoxical aggravation of GvHD...
November 22, 2016: Biology of Blood and Marrow Transplantation
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