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https://www.readbyqxmd.com/read/28743148/-impact-of-cardiac-anaesthesia-on-patient-outcome
#1
Martina Nowak-Machen
The perioperative management of complex patients in a highly technical and subspecialized environment is the domain of the cardiac anesthesiologist. Evidence suggests that hemodynamic management using goal directed hemodynamic therapy (GDHT) improves patient outcome. Organ protection remains a main concern during cardiac surgery using extracorporeal circulation. Mortality can be decreased when remote ischemic preconditioning techniques (RIPC) are being used. Neurological outcomes can be improved with near-infrared-spectometry (NIRS), volatile anesthetics increase myocardial protection through preconditioning and perioperative echocardiography increases overall patient survival...
July 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/28742644/update-on-sglt2-inhibitors-new-data-released-at-the-american-diabetes-association
#2
Sara Lee
Sodium-glucose cotransporter 2 (SGLT2) inhibitors are one of the newer classes of antiglycemic agents approved for the management of patients with type 2 diabetes mellitus. Due to their unique mechanism of action, SGLT2 inhibitors have shown to be beneficial beyond glucose control. The improvement in cardiovascular (CV) outcomes was first observed in the landmark EMPA-REG OUTCOMES study. Following these results, numerous CV outcome trials were designed to identify whether the beneficial CV and renal effects observed with empagliflozin are unique or a drug class effect...
September 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28741157/eicosapentaenoic-acid-protects-cardiomyoblasts-from-lipotoxicity-in-an-autophagy-dependent-manner
#3
Hsiu-Ching Hsu, Sin-Jin Li, Ching-Yi Chen, Ming-Fong Chen
BACKGROUND AND AIMS: The cardiovascular health benefits of eicosapentaenoic acid (EPA) have been demonstrated previously; however, the exact mechanism underlying them remains unclear. Our previous study found that lipotoxicity induced cardiomyocyte apoptosis via the inhibition of autophagy. Accordingly, in this study, we investigated whether EPA attenuated lipotoxicity-induced cardiomyocyte apoptosis through autophagy regulation. The role of EPA in mitochondrial dynamics was analyzed as well...
July 24, 2017: Cell Biology and Toxicology
https://www.readbyqxmd.com/read/28738542/protective-effects-of-tannic-acid-on-acute-doxorubicin-induced-cardiotoxicity-involvement-of-suppression-in-oxidative-stress-inflammation-and-apoptosis
#4
Jianping Zhang, Lijing Cui, Xue Han, Yuanyuan Zhang, Xuan Zhang, Xi Chu, Fenghua Zhang, Ying Zhang, Li Chu
Doxorubicin (DOX) is a highly effective drug, but its cardiotoxicity restricts its therapeutic index. Oxidative stress is the major etiopathological factor in DOX-induced cardiotoxicity. Tannic acid (TA) has various anti-cancer, antioxidant, and anti-inflammatory activities. The purpose of the study was to survey the possible effects of TA against acute DOX-induced cardiotoxicity. Male Sprague-Dawleyrats were randomly divided into five groups: control, DOX (10mg/kg) alone, DOX with TA (20 and 40mg/kg), or DOX withcaptopril (30mg/kg) treatments...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28736306/cardiac-troponin-values-in-patients-with-acute-coronary-syndrome-and-sleep-apnea-a-pilot-study
#5
Alicia Sánchez-de-la-Torre, Xavier Soler, Ferran Barbé, Marina Florés, Alan Maisel, Atul Malhotra, Montserrat Rue, Sandra Bertran, Albina Aldomá, Fernando Worner, Joan Valls, Chi-Hang Lee, Cecilia Turino, Estefanía Galera, Jordi de Batlle, Manuel Sánchez-de-la-Torre
BACKGROUND: An analysis of cardiac injury markers in patients with obstructive sleep apnea (OSA) who sustain an episode of acute coronary syndrome (ACS) may contribute to a better understanding of the interactions and impact of OSA in ACS subjects. We compared peak cardiac troponin-I (cTn-I) levels in patients admitted for ACS with and without OSA. METHODS: Blood samples were collected every 6 hours from the time of admission until 2 consecutive assays showed a downward trend in the cTn-I assay...
July 20, 2017: Chest
https://www.readbyqxmd.com/read/28736260/soluble-epoxide-hydrolase-activation-by-s-nitrosation-contributes-to-cardiac-ischemia-reperfusion-injury
#6
Yuzhu Ding, Yazi Li, Xu Zhang, Jinlong He, Dong Lu, Xuan Fang, Yuchen Wang, Jiaxing Wang, Yuying Zhang, Xinhua Qiao, Li-Ming Gan, Chang Chen, Yi Zhu
Cardiac ischemia-reperfusion (I/R) injury always accompanies recanalization treatment for myocardial infarction. Here we found soluble epoxide hydrolase (sEH), which metabolizes cardioprotective epoxyeicosatrienoic acids into less effective diols, was rapidly activated during myocardial reperfusion in both mouse and rat models in expression-independent manner. Similar activation was mimicked by nitric oxide (NO) donor dose-dependently in vitro, along with an obvious induction of sEH S-nitrosation, a short-term post-translational modification, which diminished in sEH Cys-141-Ala mutant...
July 20, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28735755/protective-effects-of-acute-exercise-prior-to-doxorubicin-on-cardiac-function-of-breast-cancer-patients-a-proof-of-concept-rct
#7
A A Kirkham, R E Shave, K A Bland, J M Bovard, N D Eves, K A Gelmon, D C McKenzie, S A Virani, E J Stöhr, D E R Warburton, K L Campbell
BACKGROUND: Preclinical studies have reported that a single treadmill session performed 24h prior to doxorubicin provides cardio-protection. We aimed to characterize the acute change in cardiac function following an initial doxorubicin treatment in humans and determine whether an exercise session performed 24h prior to treatment changes this response. METHODS: Breast cancer patients were randomized to either 30min of vigorous-intensity exercise 24h prior to the first doxorubicin treatment (n=13), or no vigorous exercise for 72h prior to treatment (control, n=11)...
July 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28733583/activation-of-lxr%C3%AE-improves-cardiac-remodeling-induced-by-pulmonary-artery-hypertension-in-rats
#8
Yibo Gong, Yifeng Yang, Qin Wu, Ge Gao, Yin Liu, Yaoyao Xiong, Can Huang, Sijie Wu
Inflammatory factors regulated by NF-κB play a significant role in PAH and myocardial hypertrophy. LXR activation may inhibit myocardial hypertrophy via suppressing inflammatory pathways; it is unknown whether LXR is also involved in PAH-induced myocardial hypertrophy or remodeling. To further explore the protective effect of LXR in PAH-induced cardiac hypertrophy and remodeling, a PAH model was developed, and T0901317, an agonist of LXR, was used to examine the effect of LXR activation. PAH rats demonstrated obvious cardiac hypertrophy and remodeling in the right ventricle, but significant improvement of cardiac hypertrophy and remodeling was observed in PAH rats treated with T0901317...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28732362/acute-atorvastatin-treatment-restores-the-cardioprotective-effects-of-ischemic-postconditioning-in-hyperlipidemic-rats
#9
Tao Sun, Hong-Ju Zhang, Chayakrit Krittanawong, Su Wang, Ying Tao, Zhao Li, Qiancheng Yin, Donghua Zhang, Qian Wang, Ji Huang, Jingmei Zhang, Zhizhong Li, Yutong Cheng
BACKGROUND: Ischemic Postconditioning (IPC) reduces ischemia/reperfusion (I/R) injury under normal conditions. HMG-CoA reductase inhibitors (statins), which inhibit the synthesis of mevalonate, can interfere with the cardioprotective effect of IPC. However, the beneficial role of IPC in hyperlipidemic patients, post-acute administration of statins remains unknown. This study was to determine if acute administration of atorvastatin affect the infarct size-limiting effect of IPC in hyperlipidemic rats...
July 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731278/knockdown-of-long-non-coding-rna-meg3-protects-h9c2-cells-from-hypoxia-induced-injury-by-targeting-microrna-183
#10
Licheng Gong, Haiming Xu, Hong Chang, Yaliang Tong, Tao Zhang, Gongliang Guo
Acute myocardial infarction (AMI) occurs when blood supply to the heart is diminished (ischemia) for long time, and ischemia is primarily caused due to hypoxia. This study evaluated the effects of long non-coding RNA maternally expressed gene 3 (MEG3) on hypoxic rat cardiomyocyte-drived H9c2 cells. Hypoxic injury was confirmed by alterations of cell viability, migration, invasion, apoptosis and hypoxia-inducible factor 1α (HIF-1α) expression. MEG3 level in hypoxic cells and effects of its knockdown on hypoxic cells were assessed...
July 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28731128/lncrna-expression-character-associated-with-ischemic-reperfusion-injury
#11
Xiaowei Wu, Hongyi Zhu, Suhua Zhu, Maojuan Hao, Qingping Li
Ischemic reperfusion injury (IRI) contributes to morbidity and mortality worldwide and results in a poor outcome for patients suffering from myocardial infarction. Ischemic post‑conditioning (IPostC), consisting of one or several brief periods of ischemia and reperfusion, generates powerful protection against IRI. The mechanism of IPostC initiation and development has previously been investigated, however still remains to be fully elucidated. Notably, long non‑coding (lnc) RNAs have previously been demonstrated to be important in cardiovascular diseases...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28730712/slow-conduction-through-an-arc-of-block-a-basis-for-arrhythmia-formation-post-myocardial-infarction
#12
Eugene Patterson, Benjamin J Scherlag, Edward J Berbari, Ralph Lazzara
INTRODUCTION: The electrophysiologic basis for characteristic rate-dependent, constant-late-coupled (390+54 msec) premature ventricular beats (PVBs) present 4-5 days following coronary artery occlusion were examined in 108 anesthetized dogs. METHODS AND RESULTS: Fractionated/double potentials were observed in injured zone bipolar and composite electrograms at prolonged sinus cycle lengths (1296 ± 396 msec). At shorter cycle lengths, conduction of the delayed potential decremented, separating from the initial electrogram by a progressively prolonged isoelectric interval...
July 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28727839/cardiac-autonomic-modulation-induced-by-doxorubicin-in-a-rodent-model-of-colorectal-cancer-and-the-influence-of-fullerenol-pretreatment
#13
Nejka Potočnik, Martina Perše, Anton Cerar, Rade Injac, Žarko Finderle
The very effective anticancer drug doxorubicin (DOX) is known to have cardiotoxic side effects, which could be accompanied by autonomic modulation. Autonomic disbalance might even be an initiating mechanism underlying DOX-induced cardiotoxicity and can be studied noninvasively by the analysis of heart rate variability (HRV). A number of strategies have been assessed to predict chemotherapy-induced cardiac dysfunction while HRV, a potential detecting tool, has not yet been tested. Thus, we aimed to determine the effect of DOX treatment on HRV in a rat model of colorectal cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28727797/prophylactic-supplementation-of-resveratrol-is-more-effective-than-its-therapeutic-use-against-doxorubicin-induced-cardiotoxicity
#14
Heba Samy Shoukry, Hania Ibrahim Ammar, Laila Ahmed Rashed, Maha Balegh Zikri, Ashraf Ali Shamaa, Sahar Gamal Abou Elfadl, Ejlal Abu-Al Rub, Sekaran Saravanan, Sanjiv Dhingra
Resveratrol (RSV), a polyphenolic compound and naturally occurring phytoalexin, has been reported to exert cardio-protective effects in several animal studies. However, the outcome of initial clinical trials with RSV was less effective compared to pre-clinical studies. Therefore, RSV treatment protocols need to be optimized. In this study we evaluated prophylactic versus therapeutic effect of resveratrol (RSV) in mitigating doxorubicin (Dox)-induced cardiac toxicity in rats. To investigate prophylactic effects, RSV was supplemented for 2 weeks along with Dox administration...
2017: PloS One
https://www.readbyqxmd.com/read/28726291/high-dose-humanin-analogue-applied-during-ischemia-exerts-cardioprotection-against-ischemia-reperfusion-injury-by-reducing-mitochondrial-dysfunction
#15
Savitree Thummasorn, Krekwit Shinlapawittayatorn, Siriporn C Chattipakorn, Nipon Chattipakorn
Although the gold standard treatment for acute myocardial infarction is reperfusion therapy, reperfusion itself can cause myocardial damage via induction of cardiac mitochondrial dysfunction. This can lead to increased myocardial infarct size, arrhythmias and left ventricular (LV) dysfunction. Recently, a newly discovered peptide, Humanin, has been shown to exert several beneficial effects including anti-oxidative and anti-apoptosis effects. We recently reported that a Humanin analogue (HNG, 84 μg/kg) given prior to cardiac ischemia exerted cardioprotection against I/R injury, but failed to do so when it was given after ischemia was induced...
July 20, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28725272/brazilian-guidelines-on-prevention-of-cardiovascular-disease-in-patients-with-diabetes-a-position-statement-from-the-brazilian-diabetes-society-sbd-the-brazilian-cardiology-society-sbc-and-the-brazilian-endocrinology-and-metabolism-society-sbem
#16
REVIEW
Marcello Casaccia Bertoluci, Rodrigo Oliveira Moreira, André Faludi, Maria Cristina Izar, Beatriz D Schaan, Cynthia Melissa Valerio, Marcelo Chiara Bertolami, Ana Paula Chacra, Marcus Vinicius Bolivar Malachias, Sérgio Vencio, José Francisco Kerr Saraiva, Roberto Betti, Luiz Turatti, Francisco Antonio Helfenstein Fonseca, Henrique Tria Bianco, Marta Sulzbach, Adriana Bertolami, João Eduardo Nunes Salles, Alexandre Hohl, Fábio Trujilho, Eduardo Gomes Lima, Marcio Hiroshi Miname, Maria Teresa Zanella, Rodrigo Lamounier, João Roberto Sá, Celso Amodeo, Antonio Carlos Pires, Raul D Santos
BACKGROUND: Since the first position statement on diabetes and cardiovascular prevention published in 2014 by the Brazilian Diabetes Society, the current view on primary and secondary prevention in diabetes has evolved as a result of new approaches on cardiovascular risk stratification, new cholesterol lowering drugs, and new anti-hyperglycemic drugs. Importantly, a pattern of risk heterogeneity has emerged, showing that not all diabetic patients are at high or very high risk. In fact, most younger patients who have no overt cardiovascular risk factors may be more adequately classified as being at intermediate or even low cardiovascular risk...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28721163/additive-effects-of-atorvastatin-combined-with-sitagliptin-on-rats-with-myocardial-infarction-a-pilot-study
#17
Xiao Ke, Bin Ke, Xing Wang, Shaoyun Wu, Rongfeng Yang, Chengheng Hu
INTRODUCTION: Atorvastatin and sitagliptin are able to exert cardio-protective effects. However, whether atorvastatin plus sitagliptin could confer additive benefits for rats with myocardial infarction (MI) is unknown. MATERIAL AND METHODS: Forty rats with MI were produced and 37 surviving rats were randomly divided into atorvastatin (10 mg/kg daily, n = 9), sitagliptin (10 mg/kg daily, n = 9), combined (10 mg/kg daily atorvastatin plus 10 mg/kg daily sitagliptin, n = 9), and control groups (3 ml normal saline daily, n = 10)...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28720397/cardioprotective-effect-of-nesfatin-1-against-isoproterenol-induced-myocardial-infarction-in-rats-role-of-the-akt-gsk-3%C3%AE-pathway
#18
Arda Tasatargil, Nilay Kuscu, Selvinaz Dalaklioglu, Dileyra Adiguzel, Ciler Celik-Ozenci, Sebahat Ozdem, Ayse Barutcigil, Sadi Ozdem
The present study was designed to evaluate the cardioprotective effects of nesfatin-1, a novel peptide with anorexigenic properties, in rats with isoproterenol (ISO)-induced myocardial infarction (MI), and to further investigate the role of Akt/GSK-3β signaling pathway in the protective effect of nesfatin-1. To induce MI, ISO was subcutaneously injected into the rats for two consecutive days at a dosage of 85mg/kg/day. ISO-induced myocardial damage was indicated by elevated levels of cardiac specific troponin-T, enhanced myocardial expression of proinflammatory cytokines (interleukin-1β, interleukin-6 and tumor necrosis factor-α), and increased number of cells with apoptotic and necrotic appearance in the myocardial tissue...
July 15, 2017: Peptides
https://www.readbyqxmd.com/read/28719799/mesencephalic-astrocyte-derived-neurotrophic-factor-manf-a-new-player-in-endoplasmic-reticulum-diseases-structure-biology-and-therapeutic-roles
#19
REVIEW
Yeawon Kim, Sun-Ji Park, Ying Maggie Chen
Mesencephalic astrocyte-derived neurotrophic factor (MANF), a newly identified 18-kDa soluble protein, localizes to the luminal endoplasmic reticulum (ER), whose stress can stimulate MANF expression and secretion. In Drosophila and zebrafish, MANF regulates dopaminergic neuron development. In contrast, in mice, MANF deficiency leads to diabetes and activation of the unfolded protein response. Recent studies in rodent models have demonstrated that MANF mitigates diabetes, exerts neurotrophic function in neurodegenerative disease, protects cardiomyocytes and neurons in myocardial infarction and cerebral ischemia, respectively, and promotes immune cell phenotype switch from proinflammatory macrophages to prorepair anti-inflammatory macrophages...
June 29, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28718055/early-anti-inflammatory-and-pro-angiogenic-myocardial-effects-of-intravenous-serelaxin-infusion-for-72%C3%A2-h-in-an-experimental-rat-model-of-acute-myocardial-infarction
#20
Jesus Sanchez-Mas, Antonio Lax, Mari C Asensio-Lopez, Miriam Lencina, Maria J Fernandez-Del Palacio, Angela Soriano-Filiu, Rudolf A de Boer, Domingo A Pascual-Figal
Sprague Dawley rats were subjected to acute myocardial infarction (AMI) by permanent ligation of the left anterior descending coronary artery. At the time of AMI, a subcutaneous mini-osmotic pump was implanted and animals were randomized into three groups, according to the intravenous therapy received during the first 72 h: placebo-treated (saline), serelaxin10-treated (SRLX10 = 10 μg/kg/day), or serelaxin30-treated (SRLX30 = 30 μg/kg/day). Treatment with SRLX30 reduced the expression of inflammatory cytokines and chemokines, as well as the infiltration of macrophages, and increased the expression of pro-angiogenic markers and vessel density in the infarcted myocardium after 7 days...
July 17, 2017: Journal of Cardiovascular Translational Research
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