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Recovery of cardiac function

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https://www.readbyqxmd.com/read/28207997/chronically-elevated-bilirubin-protects-from-cardiac-reperfusion-injury-in-the-male-gunn-rat
#1
Bhavisha Bakrania, Eugene F Du Toit, Kevin J Ashton, Karl-Heinz Wagner, John P Headrick, Andrew C Bulmer
AIMS: Bilirubin is associated with reduced risk of cardiovascular disease, as evidenced in conditions of mild hyperbilirubinaemia (Gilbert's Syndrome). Little is known regarding myocardial stress-resistance in hyperbilirubinemic conditions or whether life-long exposure modifies cardiac function, which might contribute to protection from cardiovascular disease. METHODS: Hyperbilirubinemic rats and littermate controls underwent echocardiography at 3, 6 and 12 mo of age, with hearts subsequently assessed for resistance to 30 min of ischaemia...
February 16, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28205128/heat-shock-protein-70-protects-cardiomyocytes-through-suppressing-sumoylation-and-nucleus-translocation-of-phosphorylated-eukaryotic-elongation-factor-2-during-myocardial-ischemia-and-reperfusion
#2
Chao Zhang, Xiaojuan Liu, Jin Miao, Shengcun Wang, Liucheng Wu, Daliang Yan, Jingjing Li, Wanwan Guo, Xiang Wu, Aiguo Shen
Myocardial ischemia and reperfusion (MIR) results in cardiomyocyte apoptosis with severe outcomes, which blocks cardiac tissue recovering from myocardial ischemia diseases. Heat shock protein 70 (HSP70) is one of protective molecule chaperones which could regulate the nucleus translocation of other proteins. In addition, eukaryotic elongation factor 2 (eEF2), which modulates protein translation process, is vital to the recovery of heart during MIR. However, the relationship between HSP70 and eEF2 and its effects on MIR are unclear...
February 15, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28205113/cardiac-pet-ct-with-rb-82-optimization-of-image-acquisition-and-reconstruction-parameters
#3
P Chilra, S Gnesin, G Allenbach, M Monteiro, J O Prior, L Vieira, J A Pires Jorge
BACKGROUND: Our aim was to characterize the influence of time-of-flight (TOF) and point spread function (PSF) recovery corrections, as well as ordered subset expectation maximization (OSEM) reconstruction parameters, in (82)Rb PET/CT quantification of myocardial blood flow (MBF) and myocardial flow reserve (MFR). Rest and stress list-mode dynamic (82)Rb PET acquisition data from 10 patients without myocardial flow defects and 10 patients with myocardial blood flow defects were reconstructed retrospectively...
December 2017: EJNMMI Physics
https://www.readbyqxmd.com/read/28202421/predictors-of-long-term-functional-outcome-and-health-related-quality-of-life-after-out-of-hospital-cardiac-arrest
#4
Guillaume Geri, Florence Dumas, Franck Bonnetain, Wulfran Bougouin, Benoit Champigneulle, Michel Arnaout, Pierre Carli, Eloi Marijon, Olivier Varenne, Jean-Paul Mira, Jean-Philippe Empana, Alain Cariou
BACKGROUND: Even if a large majority of out-of-hospital cardiac arrest (OHCA) survivors appear to have a good neurological recovery with no important sequellae, whether health-related quality of life (HRQOL) is altered is less explored. PATIENTS AND METHODS: HRQOL was evaluated by telephone interview using SF-36 questionnaire. Each OHCA case was age and gender-matched with 4 controls from the French general population. Association between current condition of the survivors with the 8 dimensions of the SF-36 questionnaire was investigated using MANCOVA...
February 12, 2017: Resuscitation
https://www.readbyqxmd.com/read/28196853/impaired-cardiac-and-skeletal-muscle-bioenergetics-in-children-adolescents-and-young-adults-with-barth-syndrome
#5
Adil Bashir, Kathryn L Bohnert, Dominic N Reeds, Linda R Peterson, Adam J Bittel, Lisa de Las Fuentes, Christina A Pacak, Barry J Byrne, W Todd Cade
: Barth syndrome (BTHS) is an X-linked condition characterized by altered cardiolipin metabolism and cardioskeletal myopathy. We sought to compare cardiac and skeletal muscle bioenergetics in children, adolescents, and young adults with BTHS and unaffected controls and examine their relationships with cardiac function and exercise capacity. Children/adolescents and young adults with BTHS (n = 20) and children/adolescent and young adult control participants (n = 23, total n = 43) underwent (31)P magnetic resonance spectroscopy ((31)P-MRS) of the lower extremity (calf) and heart for estimation of skeletal muscle and cardiac bioenergetics...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28184261/dual-antiplatelet-therapy-and-non-cardiac-surgery-evolving-issues-and-anesthetic-implications
#6
REVIEW
Jong Wook Song, Sarah Soh, Jae-Kwang Shim
Dual antiplatelet therapy (DAPT) consisting of aspirin plus a P2Y12 inhibitor (clopidogrel, prasugrel, or ticagrelor) is imperative for the treatment of acute coronary syndrome, particularly during the re-endothelialization period after percutaneous coronary intervention (PCI). When patients undergo surgery during this period, the consequences of stent thrombosis are far more serious than those of bleeding complications, except in cases of intracranial surgery. The recommendations for perioperative DAPT have changed with emerging evidence regarding the improved efficacy of non-first-generation drug (everolimus, zotarolimus)-eluting stents (DES)...
February 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28181926/autonomic-nervous-system-function-after-a-skin-to-skin-contact-intervention-in-infants-with-congenital-heart-disease
#7
Tondi M Harrison, Roger Brown
BACKGROUND: Infants with complex congenital heart disease (CCHD) demonstrate impaired autonomic nervous system (ANS) regulation, which may contribute to commonly observed impairments in feeding, growth, and development. Close mother-infant physical contact improves ANS function in other high-risk infant populations. OBJECTIVE: Our purposes were to examine feasibility of a 2-week daily skin-to-skin contact (SSC) intervention and to describe change in ANS function in response to the intervention...
February 9, 2017: Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/28177906/myocardial-protection-from-ischemia-reperfusion-injury-by-exogenous-galanin-fragment
#8
Andrei Timotin, Oleg Pisarenko, Maria Sidorova, Irina Studneva, Valentin Shulzhenko, Marina Palkeeva, Larisa Serebryakova, Aleksander Molokoedov, Oksana Veselova, Mathieu Cinato, Helene Tronchere, Frederic Boal, Oksana Kunduzova
BACKGROUND AND PURPOSE: Galanin is a multifunctional neuropeptide with pleiotropic roles. The present study was designed to evaluate the potential effects of galanin (2-11) (G1) on functional and metabolic abnormalities in response to myocardial ischemia-reperfusion (I/R) injury. EXPERIMENTAL APPROACH: Peptide G1 was synthesized by the 9-fluorenylmethoxycarbonyl (Fmoc)-based solid-phase method. The chemical structure was identified by 1H-NMR spectroscopy and mass spectrometry...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28174241/development-of-a-human-cardiac-organoid-injury-model-reveals-innate-regenerative-potential
#9
Holly K Voges, Richard J Mills, David A Elliott, Robert G Parton, Enzo R Porrello, James E Hudson
The adult human heart possesses a limited regenerative potential following an ischemic event, and undergoes a number of pathological changes in response to injury. While cardiac regeneration has been documented in zebrafish and neonatal mouse hearts, it is currently unknown whether the immature human heart is capable of undergoing complete regeneration. Combined progress in pluripotent stem cell differentiation and tissue engineering has facilitated the development of human cardiac organoids (hCO), which resemble fetal heart tissue and can be used to address this important knowledge gap...
February 7, 2017: Development
https://www.readbyqxmd.com/read/28168412/neuroprognostication-after-adult-cardiac-arrest-treated-with-targeted-temperature-management-task-force-for-belgian-recommendations
#10
Fabio Silvio Taccone, Ingrid Baar, Cathy De Deyne, Patrick Druwe, Benjamin Legros, Geert Meyfroidt, Michel Ossemann, Nicolas Gaspard
The prognosis of patients who are admitted to the hospital after cardiac arrest often relies on neurological examination, which could be significantly influenced by the use of sedative drugs or the implementation of targeted temperature management. The need for early and accurate prognostication is crucial as up to 15-20% of patients could be considered as having a poor outcome and may undergo withdrawal of life-sustaining therapies while a complete neurological recovery is still possible. As current practice in Belgium is still based on a very early assessment of neurological function in these patients, the Belgian Society of Intensive Care Medicine created a multidisciplinary Task Force to provide an optimal approach for monitoring and refine prognosis of CA survivors...
February 6, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28168211/dynamic-regimes-of-neocortical-activity-linked-to-corticothalamic-integrity-correlate-with-outcomes-in-acute-anoxic-brain-injury-after-cardiac-arrest
#11
Peter B Forgacs, Hans-Peter Frey, Angela Velazquez, Stephanie Thompson, Daniel Brodie, Vivek Moitra, Leroy Rabani, Soojin Park, Sachin Agarwal, Maria Cristina Falo, Nicholas D Schiff, Jan Claassen
OBJECTIVE: Recognition of potential for neurological recovery in patients who remain comatose after cardiac arrest is challenging and strains clinical decision making. Here, we utilize an approach that is based on physiological principles underlying recovery of consciousness and show correlation with clinical recovery after acute anoxic brain injury. METHODS: A cohort study of 54 patients admitted to an Intensive Care Unit after cardiac arrest who underwent standardized bedside behavioral testing (Coma Recovery Scale - Revised [CRS-R]) during EEG monitoring...
February 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28153944/involvement-of-glycogen-synthase-kinase-3%C3%AE-in-liver-ischemic-conditioning-induced-cardioprotection-against-myocardial-ischemia-and-reperfusion-injury-in-rats
#12
Shuai Yang, Geoffrey W Abbott, Wei Dong Gao, Jin Liu, Chaozhi Luo, Zhaoyang Hu
Remote ischemic conditioning has been convincingly shown to render the myocardium resistant to a subsequent more severe sustained episode of ischemia. Compared to other organs, little is known regarding the effect of transient liver ischemic conditioning. We proposed the existence cardioprotection induced by remote liver conditioning. Male Sprague Dawley rats were divided into sham-operated, control(CON, no further hepatic intervention) and remote liver ischemic conditioning groups. For liver ischemic conditioning, three cycles of 5min of liver ischemia/reperfusion stimuli were conducted prior to-(liver preconditioning), post-myocardial ischemia (liver postconditioning), or in combination of both (liver preconditioning+liver postconditioning)...
February 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28153942/divergent-endothelial-function-but-similar-platelet-microvesicle-responses-following-eccentric-and-concentric-cycling-at-a-similar-aerobic-power-output
#13
Mark Rakobowchuk, Ophélie Ritter, Eurico Nestor Wilhelm, Laurie Isacco, Malika Bouhaddi, Bruno Degano, Nicolas Tordi, Laurent Mourot
Endothelial function and microvesicle concentration changes after acute bouts of continuous eccentric exercise have not been assessed previously nor compared to concentric exercise at similar aerobic power outputs. This method of training may be useful amongst some clinical populations, but acute responses are not well described. As such, twelve healthy males completed two experimental sessions of either 45 minutes of eccentric or concentric cycling at a matched aerobic power output below the ventilatory threshold...
February 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28138518/decellularized-zebrafish-cardiac-extracellular-matrix-induces-mammalian-heart-regeneration
#14
William C W Chen, Zhouguang Wang, Maria Azzurra Missinato, Dae Woo Park, Daniel Ward Long, Heng-Jui Liu, Xuemei Zeng, Nathan A Yates, Kang Kim, Yadong Wang
Heart attack is a global health problem that leads to significant morbidity, mortality, and health care burden. Adult human hearts have very limited regenerative capability after injury. However, evolutionarily primitive species generally have higher regenerative capacity than mammals. The extracellular matrix (ECM) may contribute to this difference. Mammalian cardiac ECM may not be optimally inductive for cardiac regeneration because of the fibrotic, instead of regenerative, responses in injured adult mammalian hearts...
November 2016: Science Advances
https://www.readbyqxmd.com/read/28132404/right-ventricular-function-during-acute-exacerbation-of-severe-equine-asthma
#15
A Decloedt, H Borowicz, M Slowikowska, K Chiers, G van Loon, A Niedzwiedz
BACKGROUND: Pulmonary hypertension has been described in horses with severe equine asthma but its effect on the right ventricle has not been fully elucidated. OBJECTIVES: To evaluate right ventricular structure and function after a one-week period of pulmonary hypertension secondary to acute exacerbation of severe equine asthma. STUDY DESIGN: Prospective study. METHODS: A clinical episode of severe equine asthma was induced experimentally in six susceptible horses...
January 28, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28131704/notch3-deficiency-impairs-coronary-microvascular-maturation-and-reduces-cardiac-recovery-after-myocardial-ischemia
#16
Yong-Kang Tao, Heng Zeng, Guo-Qiang Zhang, Sean T Chen, Xue-Jiao Xie, Xiaochen He, Shuo Wang, Hongyan Wen, Jian-Xiong Chen
RATIONALE: Vascular maturation plays an important role in wound repair post-myocardial infarction (MI). The Notch3 is critical for pericyte recruitment and vascular maturation during embryonic development. OBJECTIVE: This study is to test whether Notch3 deficiency impairs vascular maturation and blunts cardiac functional recovery post-MI. APPROACH AND RESULTS: Wild type (WT) and Notch3 knockout (Notch3KO) mice were subjected to MI by the ligation of left anterior descending coronary artery (LAD)...
January 24, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28129515/association-between-cardiovascular-diseases-and-mobility-in-persons-with-lower-limb-amputation-a-systematic-review
#17
Sara Kaptein, Jan H B Geertzen, Pieter U Dijkstra
PURPOSE: Persons requiring a lower limb amputation often have cardiovascular diseases that reduce cardiac function, which may complicate recovery and rehabilitation after an amputation. This systematic review analysis the association between cardiovascular diseases and mobility in persons with a lower limb amputation. METHOD: Four databases were searched for studies published before August 2016 using database-specific keywords and synonyms for amputation, cardiovascular diseases and mobility...
January 27, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28122851/intradialytic-cardiac-magnetic-resonance-imaging-to-assess-cardiovascular-responses-in-a-short-term-trial-of-hemodiafiltration-and-hemodialysis
#18
Charlotte Buchanan, Azharuddin Mohammed, Eleanor Cox, Katrin Köhler, Bernard Canaud, Maarten W Taal, Nicholas M Selby, Susan Francis, Chris W McIntyre
Hemodynamic stress during hemodialysis (HD) results in recurrent segmental ischemic injury (myocardial stunning) that drives cumulative cardiac damage. We performed a fully comprehensive study of the cardiovascular effect of dialysis sessions using intradialytic cardiac magnetic resonance imaging (MRI) to examine the comparative acute effects of standard HD versus hemodiafiltration (HDF) in stable patients. We randomly allocated 12 patients on HD (ages 32-72 years old) to either HD or HDF. Patients were stabilized on a modality for 2 weeks before undergoing serial cardiac MRI assessment during dialysis...
November 10, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28122306/hydroxysafflor-yellow-a-promotes-neovascularization-and-cardiac-function-recovery-through-ho-1-vegf-a-sdf-1%C3%AE-cascade
#19
Guo Wei, Ying Yin, Jialin Duan, Chao Guo, Yanrong Zhu, Yanhua Wang, Miaomiao Xi, Aidong Wen
AIM: The present study was to investigate the proangiogenic and cardioprotective effects of hydroxysafflor yellow A (HSYA) against myocardial infarction (MI) injury and the underlying mechanisms. METHODS: MI model was induced by ligation of the left coronary artery in normal and heme oxygenase-1 (HO-1) knockout mice and the ones receiving vascular endothelial growth factor-A (VEGF-A) or stromal cell-derived factor-1α (SDF-1α) antagonists. They were treated with three doses or single dose of HSYA for 28days...
January 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28122159/hypothermia-and-targeted-temperature-management-in-cats-and-dogs
#20
Andrea Brodeur, Annie Wright, Yonaira Cortes
OBJECTIVE: To review current knowledge surrounding the effects, treatment, and prognosis of hypothermia in people, dogs, and cats, as well as the application of therapeutic hypothermia in clinical medicine. ETIOLOGY: Hypothermia may be a primary or secondary condition, and may be due to environmental exposure, illness, medications, anesthesia, or trauma. Hypothermia has been applied therapeutically in human medicine for a variety of conditions, including postcardiac arrest...
January 25, 2017: Journal of Veterinary Emergency and Critical Care
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