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https://www.readbyqxmd.com/read/28551931/-acute-alcohol-intoxication-in-an-eight-weeks-old-infant
#1
Tal Frenkel Rutenberg, Michael Benacun
Alcohol intoxication in infants is a life-threatening condition which requires early diagnosis and treatment. It may lead to multi-system injury, including mental deterioration, respiratory depression, cardiac arrhythmia, metabolic disorders and hypothermia. We present the case of an eight weeks old female infant who was admitted to the pediatric emergency department after ingesting 40 ml of vodka with her baby formula. She was initially apathetic, with blood alcohol levels of 149 mg/dl, yet fully recovered after a short period of time...
March 2017: Harefuah
https://www.readbyqxmd.com/read/28551923/-extracorporeal-membrane-oxygenation-in-israel-6-5-years-of-experience-at-the-largest-ecmo-treatment-center-in-israel
#2
Philip Biderman, Uri Carmi, Michael Fainblut, Oren Bachar, Benny Medallion, Dan Aravot
AIMS: The primary purpose of the study is to evaluate the characteristics of the population treated with ECMO at Beilinson Hospital, the treatment results and a comparison of results with ECMO centers in the world. The treatment outcomes relative to the experience of the team during the years 2008-2014 were also examined. The secondary purpose of this article is to increase the awareness of the medical staff to ECMO as a treatment option for patients with appropriate indications, where indications have increased in recent years...
April 2017: Harefuah
https://www.readbyqxmd.com/read/28551920/-women-s-cardiac-health-from-theory-to-activism
#3
REVIEW
Avital Porter
Cardiovascular disease (CVD) is the leading cause of death in the western world, in both genders. Although awareness of the importance of prevention, diagnosis and optimal treatment of CVD has risen in general, most women are not fully aware of their CVD risk. Moreover, women are not alert to the burden of risk in their reproductive years (e.g. complicated pregnancy and/or peri-menopausal period) and their impact on future CVD. Unique Female issues such as: fertile age, menopause, oral contraceptives, hormonal and metabolic disorders during pregnancy, labor, as well as psychological matters, and healthy life-style are major contributors to primary and secondary prevention of CVD...
April 2017: Harefuah
https://www.readbyqxmd.com/read/28551896/-review-of-common-pathogens-in-the-bone-and-blood-cultures-and-antibiotic-treatment-in-patients-with-sternal-osteomyelitis
#4
Michal Benkler, Ori Shulman, Yoav Avrahamy, David Mendes, Yoav Arus, Ron Fishel, Amos Leviav, Dana Egozi
AIMS: This study concentrates on microbiological data collection of deep sternal wounds to delineate early and correct antibiotic therapy. BACKGROUND: Deep sternal wound infection, mediastinitis and sternal osteomyelitis are devastating and life-threatening complications of median-sternotomy incisions after cardiac surgical procedures. The incidence of surgical wound infection in sternotomies should be similar to that in any clean surgical procedure (i.e. approximately 2%)...
February 2017: Harefuah
https://www.readbyqxmd.com/read/28551841/impaired-cardiac-profile-in-adolescents-with-an-increasing-trajectory-of-anxiety-when-confronting-an-acute-stressor
#5
Alejandro de la Torre-Luque, Aina Fiol-Veny, Xavier Bornas, Maria Balle, Jordi Llabres
Maladaptive patterns of cardiac adjustment to stress in adolescents may reveal their vulnerability to anxiety disorders (ADs). Traditional research in this field has focused on anxiety levels, whereas the time course of anxiety has rarely been considered. Nevertheless, since overall anxiety decreases as adolescence progresses, increasing time courses are clinically relevant and can be associated with maladaptive contextual adjustment. In this study, the cardiac pattern of adjustment to stress in adolescents with increasing anxiety was analysed...
May 27, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28551818/novel-three-dimensional-image-fusion-software-to-facilitate-guidance-of-complex-cardiac-catheterization-3d-image-fusion-for-interventions-in-chd
#6
Sebastian Goreczny, Pawel Dryzek, Gareth J Morgan, Maciej Lukaszewski, Jadwiga A Moll, Tomasz Moszura
We report initial experience with novel three-dimensional (3D) image fusion software for guidance of transcatheter interventions in congenital heart disease. Developments in fusion imaging have facilitated the integration of 3D roadmaps from computed tomography or magnetic resonance imaging datasets. The latest software allows live fusion of two-dimensional (2D) fluoroscopy with pre-registered 3D roadmaps. We reviewed all cardiac catheterizations guided with this software (Philips VesselNavigator). Pre-catheterization imaging and catheterization data were collected focusing on fusion of 3D roadmap, intervention guidance, contrast and radiation exposure...
May 27, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28551810/mitochondria-targeted-antioxidants-for-the-treatment-of-cardiovascular-disorders
#7
Hyoung Kyu Kim, Jin Han
The heart continuously supplies blood to the entire body throughout the lifetime, requiring a huge amount of the bioenergy molecule adenosine triphosphate (ATP). As the major subcellular organs that produce ATP through oxidative phosphorylation and the citrate-synthesis cycle, mitochondria inevitably produce chemically reactive species as byproducts. Those species are known to be major effectors of mitochondrial dysfunction, many of which are involved in various cardiovascular diseases, causing apoptotic/necrotic loss of cardiac myocytes and/or defects in the energy balance within the myocardium...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551809/mitochondrial-transplantation-in-myocardial-ischemia-and-reperfusion-injury
#8
Borami Shin, Douglas B Cowan, Sitaram M Emani, Pedro J Del Nido, James D McCully
Ischemic heart disease remains the leading cause of death worldwide. Mitochondria are the power plant of the cardiomyocyte, generating more than 95% of the cardiac ATP. Complex cellular responses to myocardial ischemia converge on mitochondrial malfunction which persists and increases after reperfusion, determining the extent of cellular viability and post-ischemic functional recovery. In a quest to ameliorate various points in pathways from mitochondrial damage to myocardial necrosis, exhaustive pharmacologic and genetic tools have targeted various mediators of ischemia and reperfusion injury and procedural techniques without applicable success...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551802/mitochondrial-dysfunction-in-cardiovascular-aging
#9
Charles L Hoppel, Edward J Lesnefsky, Qun Chen, Bernard Tandler
Mitochondria are the prime source of ATP in cardiomyocytes. Impairment of mitochondrial metabolism results in damage to existing proteins and DNA. Such deleterious effects are part and parcel of the aging process, reducing the ability of cardiomyocytes to counter stress, such as myocardial infarction and consequent reperfusion. In such conditions, mitochondria in the heart of aged individuals exhibit decreased oxidative phosphorylation, decreased ATP production, and increased net reactive oxygen species production; all of these effects are independent of the decrease in number of mitochondria that occurs in these situations...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551797/peripheral-blood-mitochondrial-dna-and-myocardial-function
#10
Tatiana Kuznetsova, Judita Knez
Heart failure is a complex progressive clinical syndrome which is initiated by risk factors (e.g., hypertension, obesity, and diabetes), then proceeds to asymptomatic maladaptive left ventricular remodeling and dysfunction, and finally evolves into clinically overt, symptomatic heart failure, disability, and death. The progression of left ventricular dysfunction is associated with changes in cardiac energy metabolism. Mitochondria play a central role in a variety of cardiomyocytes functions, including oxidative energy production, storage of calcium ions, and programmed cell death...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551793/mitochondria-in-structural-and-functional-cardiac-remodeling
#11
Natalia Torrealba, Pablo Aranguiz, Camila Alonso, Beverly A Rothermel, Sergio Lavandero
The heart must function continuously as it is responsible for both supplying oxygen and nutrients throughout the entire body, as well as for the transport of waste products to excretory organs. When facing either a physiological or pathological increase in cardiac demand, the heart undergoes structural and functional remodeling as a means of adapting to increased workload. These adaptive responses can include changes in gene expression, protein composition, and structure of sub-cellular organelles involved in energy production and metabolism...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551792/mechanistic-role-of-thioredoxin-2-in-heart-failure
#12
Chaofei Chen, Haixuan Chen, Huanjiao Jenny Zhou, Weidong Ji, Wang Min
Thioredoxin 2 (Trx2) is a pivotal mitochondrial protein that regulates redox signaling. The mitochondrial Trx2 is expressed ubiquitously, but it is found at the highest levels in metabolically active tissues like the heart. Global gene knockout of Trx2 results in embryonic lethality, likely due to the increased cellular oxidative stress. Moreover, mice with cardiac-specific Trx2 deletion develop spontaneous dilated cardiomyopathy (DCM), correlating with increased apoptosis stress kinase-1 (ASK1) signaling and increased cardiomyocyte apoptosis...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551791/mitochondrial-mechanosensor-microdomains-in-cardiovascular-disorders
#13
Michele Miragoli, Aderville Cabassi
The cardiomyocytes populating the 'working myocardium' are highly organized and such organization ranges from macroscale (e.g. the geometrical rod shape) to microscale (dyad/t-tubules) domains. This meticulous level of organization is imperative for assuring the normal and physiological pump-function of the heart. In the pathological cardiac tissue, the domains-related architecture is partially lost, resulting in morphological, electrical and metabolic remodeling and promoting cardiovascular diseases including heart failure and arrhythmias...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551789/mitochondria-and-cardiac-hypertrophy
#14
Heberty di Tarso Fernandes Facundo, Robert Eli Brainard, Francisco Rodrigo de Lemos Caldas, Aline Maria Brito Lucas
Cardiac tissue responds to long-term hemodynamic load through initiation of a hypertrophic remodeling program. Importantly, if not counteracted this response will eventually lead to organ failure. Cardiac hypertrophic adaptations are complex, and involve multiple cellular events and the mechanisms underlying the development of cardiac hypertrophy are not well understood. Mitochondrial dysfunction has been indicated as a potential and important player in the development of cardiac hypertrophy. Additionally, substantial evidence shows that a significant portion of mitochondrial processes, necessary for normal cardiomyocyte physiology, are impacted by these hypertrophic changes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551788/functional-role-of-mitochondria-in-arrhythmogenesis
#15
Jessica Gambardella, Daniela Sorriento, Michele Ciccarelli, Carmine Del Giudice, Antonella Fiordelisi, Luigi Napolitano, Bruno Trimarco, Guido Iaccarino, Gaetano Santulli
Growing evidence indicate that mitochondria play a functional role in arrhythmogenesis. We report here the molecular mechanisms underlying the action of these highly dynamic organelles in the regulation of cell metabolism, action potential and, overall, heart excitability. In particular, we examine the role of cardiac mitochondria in linking metabolism and cell excitability. The importance of the main mitochondrial channels is evaluated as well, including the recently identified calcium uniporter. Promises and pitfalls of potential therapeutic strategies targeting mitochondrial pathways are also assessed...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551786/mitochondrial-bioenergetics-during-ischemia-and-reperfusion
#16
Alicia E Consolini, María I Ragone, Patricia Bonazzola, Germán A Colareda
During ischemia and reperfusion (I/R) mitochondria suffer a deficiency to supply the cardiomyocyte with chemical energy, but also contribute to the cytosolic ionic alterations especially of Ca(2+). Their free calcium concentration ([Ca(2+)]m) mainly depends on mitochondrial entrance through the uniporter (UCam) and extrusion in exchange with Na(+) (mNCX) driven by the electrochemical gradient (ΔΨm). Cardiac energetic is frequently estimated by the oxygen consumption, which determines metabolism coupled to ATP production and to the maintaining of ΔΨm...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551784/mitochondrial-function-in-non-ischemic-heart-failure
#17
Anisha A Gupte, Dale J Hamilton
Provision for the continuous demand for energy from the beating heart relies heavily on efficient mitochondrial activity. Non-ischemic cardiomyopathy in which oxygen supply is not limiting results from etiologies such as pressure overload. It is associated with progressive development of metabolic stress culminating in energy depletion and heart failure. The mitochondria from the ventricular walls undergoing non-ischemic cardiomyopathy are subjected to long periods of adaptation to support the changing metabolic milieu, which has been described as mal-adaptation since it ultimately results in loss of cardiac contractile function...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551783/mitochondrial-mutations-in-cardiac-disorders
#18
Sung Ryul Lee, Jin Han
Mitochondria individually encapsulate their own genome, unlike other cellular organelles. Mitochondrial DNA (mtDNA) is a circular, double-stranded, 16,569-base paired DNA containing 37 genes: 13 proteins of the mitochondrial respiratory chain, two ribosomal RNAs (rRNAs; 12S and 16S), and 22 transfer RNAs (tRNAs). The mtDNA is more vulnerable to oxidative modifications compared to nuclear DNA because of its proximity to ROS-producing sites, limited presence of DNA damage repair systems, and continuous replication in the cell...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551779/functional-implications-of-cardiac-mitochondria-clustering
#19
Felix T Kurz, Miguel A Aon, Brian O'Rourke, Antonis A Armoundas
The spatio-temporal organization of mitochondria in cardiac myocytes facilitates myocyte-wide, cluster-bound, mitochondrial inner membrane potential oscillatory depolarizations, commonly triggered by metabolic or oxidative stressors. Local intermitochondrial coupling can be mediated by reactive oxygen species (ROS) that activate inner membrane pores to initiate a ROS-induced-ROS-release process that produces synchronized limit cycle oscillations of mitochondrial clusters within the whole mitochondrial network...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551718/pelvic-artery-aneurysm-screening-provides-value-in-patients-with-thoracic-aortic-aneurysms
#20
Matthew Chapman, Leslie E Quint, Kuanwong Watcharotone, Bin Nan, Michael J Ranella, Mariana R DeFreitas, Joanna R Hider, Jonathan L Eliason, Himanshu J Patel
Approximately ¼ of patients with thoracic aortic aneurysms (TAAs) have concomitant abdominal aortic aneurysms (AAAs), thereby justifying the addition of an abdominal CT scan to a chest CT scan in patients with a newly diagnosed or suspected TAA. However, the prevalence of pelvic artery aneurysms (PAAs) in these patients is unknown. The purpose of this study was to determine the prevalence of PAAs in patients with TAAs and to assess what patient specific factors were associated with PAAs, thereby providing insight into the usefulness of pelvic imaging in TAA patients...
May 27, 2017: International Journal of Cardiovascular Imaging
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