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https://www.readbyqxmd.com/read/28231667/-association-between-body-mass-index-and-both-total-and-cause-specific-mortality-in-china-findings-from-data-through-the-china-kadoorie-biobank
#1
L X Wang, M Y Fan, C Q Yu, Y Guo, Z Bian, Y L Tan, P Pei, J S Chen, J Lyu, L M Li
Objective: To evaluate the associations between body mass index (BMI) and both total and cause-specific mortality. Methods: After excluding participants with heart disease, stroke, cancer, chronic obstructive pulmonary disease, and diabetes at baseline study, 428 593 participants aged 30-79 in the China Kadoorie Biobank study were chosen for this study. Participants were categorized into 9 groups according to their BMI status. Cox regression analysis was used to estimate the hazard ratios (HRs) and 95% confidence intervals (CIs) of mortality on BMI...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28231611/leg-vascular-and-skeletal-muscle-mitochondrial-adaptations-to-aerobic-high-intensity-exercise-training-are-enhanced-in-the-early-postmenopausal-phase
#2
Michael Nyberg, Jon Egelund, Camilla M Mandrup, Caroline B Andersen, Karen M B E Hansen, Ida-Marie F Hergel, Nicholai Valbak-Andersen, Ruth Frikke-Schmidt, Bente Stallknecht, Jens Bangsbo, Ylva Hellsten
Exercise training leads to favourable adaptations within skeletal muscle; however, this effect of exercise training may be blunted in postmenopausal women due to the loss of oestrogens. Furthermore, postmenopausal women may have an impaired vascular response to acute exercise. We examined the haemodynamic response to acute exercise in matched pre- and postmenopausal women before and after 12 weeks of aerobic high intensity exercise training. Twenty premenopausal and 16 early postmenopausal (3.1 ± 0.5 [mean ± SEM] years after final menstrual period) women only separated by 4 (50 ± 0 versus 54 ± 1) years of age were included...
February 23, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28231607/position-in-the-second-stage-of-labour-for-women-with-epidural-anaesthesia
#3
REVIEW
Marion Kibuka, Jim G Thornton
BACKGROUND: Epidural analgesia for pain relief in labour prolongs the second stage of labour and results in more instrumental deliveries. It has been suggested that a more upright position of the mother during all or part of the second stage may counteract these adverse effects. This is an update of a Cochrane review first published in 2013. OBJECTIVES: To assess the effects of different birthing positions (upright and recumbent) during the second stage of labour, on important maternal and fetal outcomes for women with epidural analgesia...
February 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28231595/-subjective-aspects-of-return-to-work-and-social-reintegration-in-patients-with-extensive-work-related-problems-in-cardiac-rehabilitation-results-of-a-qualitative-investigation
#4
C Schulz-Behrendt, A Salzwedel, S Rabe, K Ortmann, H Völler
This study investigated subjective biopsychosocial effects of coronary heart disease (CHD), coping strategies and social support in patients undergoing cardiac rehabilitation (CR) and having extensive work-related problems. A qualitative investigation was performed in 17 patients (48.9±7.0 y, 13 male) with extensive work-related problems (SIMBO-C>30). All patients were interviewed with structured surveys. Data analysis was performed using a software that is based on the content analysis approach of Mayring...
February 23, 2017: Die Rehabilitation
https://www.readbyqxmd.com/read/28231545/aqueous-extract-of-cortex-dictamni-protects-h9c2-cardiomyocytes-from-hypoxia-reoxygenation-induced-oxidative-stress-and-apoptosis-by-pi3k-akt-signaling-pathway
#5
Lin Li, Yunfeng Zhou, Yanlin Li, Lili Wang, Lan Sun, Lidong Zhou, Hiderori Arai, Yun Qi, Yang Xu
Ischemia-reperfusion injury is the major manifestation of ischemic heart disease, which facilitates cardiac arrhythmias, heart failure and death. Oxidative stress and apoptosis have been involved in the pathogenesis of myocardial ischemia-reperfusion injury. Modern pharmacological studies have indicated that the extracts and active compounds of Cortex Dictamni exhibit antioxidative and cardiovascular protective activities. This study was designed to investigate the protective effect of aqueous extract of Cortex Dictamni (CDAE) on regulating hypoxia/reoxygenation (H/R)-induced cardiomyocytes oxidative stress and apoptosis...
February 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28231511/automated-diagnosis-of-congestive-heart-failure-using-dual-tree-complex-wavelet-transform-and-statistical-features-extracted-from-2s-of-ecg-signals
#6
Vidya K Sudarshan, U Rajendra Acharya, Shu Lih Oh, Muhammad Adam, Jen Hong Tan, Chua Kuang Chua, Kok Poo Chua, Ru San Tan
Identification of alarming features in the electrocardiogram (ECG) signal is extremely significant for the prediction of congestive heart failure (CHF). ECG signal analysis carried out using computer-aided techniques can speed up the diagnosis process and aid in the proper management of CHF patients. Therefore, in this work, dual tree complex wavelets transform (DTCWT)-based methodology is proposed for an automated identification of ECG signals exhibiting CHF from normal. In the experiment, we have performed a DTCWT on ECG segments of 2s duration up to six levels to obtain the coefficients...
February 7, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28231509/a-single-injection-of-protein-loaded-coacervate-gel-significantly-improves-cardiac-function-post-infarction
#7
H K Awada, D W Long, Z Wang, M P Hwang, K Kim, Y Wang
After myocardial infarction (MI), the heart undergoes fibrotic pathological remodeling instead of repair and regeneration. With multiple pathologies developing after MI, treatment using several proteins is expected to address this range of pathologies more effectively than a single-agent therapy. A factorial design of experiments study guided us to combine three complementary factors in one injection: tissue inhibitor of metalloproteinases-3 (TIMP-3) was embedded in a fibrin gel for signaling in the initial phase of the treatment, while basic fibroblast growth factor (FGF-2) and stromal cell-derived factor 1-alpha (SDF-1α) were embedded in heparin-based coacervates for sustained release and distributed within the same fibrin gel to exert their effects over a longer period...
February 17, 2017: Biomaterials
https://www.readbyqxmd.com/read/28231436/myocardial-homing-of-mesenchymal-stem-cells-following-intrapericardial-application-and-amplification-by-inflammation-an-experimental-pilot-study
#8
Nina Jung, Heinz Rupp, Rembert Koczulla, Claus Vogelmeier, Peter Alter
Recent studies demonstrated potential effects of stem cells on cardiac function in heart failure. However, influences of the technique of application remained undetermined. In the present study, the pericardial sac was used as depot for fluorescent-labeled mesenchymal stem cells in rats. To evaluate influences of inflammation on cell homing, a sterile pericarditis was induced by talc. It is shown that intrapericardial stem cells application is sufficient to provide myocardial penetration. The extent of homing was amplified by inflammation in a talc-induced pericarditis...
February 23, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28231322/clinical-evaluation-of-new-automatic-coronary-specific-best-cardiac-phase-selection-algorithm-for-single-beat-coronary-ct-angiography
#9
Hui Wang, Lei Xu, Zhanming Fan, Junfu Liang, Zixu Yan, Zhonghua Sun
The aim of this study was to evaluate the workflow efficiency of a new automatic coronary-specific reconstruction technique (Smart Phase, GE Healthcare-SP) for selection of the best cardiac phase with least coronary motion when compared with expert manual selection (MS) of best phase in patients with high heart rate. A total of 46 patients with heart rates above 75 bpm who underwent single beat coronary computed tomography angiography (CCTA) were enrolled in this study. CCTA of all subjects were performed on a 256-detector row CT scanner (Revolution CT, GE Healthcare, Waukesha, Wisconsin, US)...
2017: PloS One
https://www.readbyqxmd.com/read/28231318/effects-of-na-channel-blockers-on-the-restitution-of-refractory-period-conduction-time-and-excitation-wavelength-in-perfused-guinea-pig-heart
#10
Oleg E Osadchii
Na+ channel blockers flecainide and quinidine can increase propensity to ventricular tachyarrhythmia, whereas lidocaine and mexiletine are recognized as safe antiarrhythmics. Clinically, ventricular fibrillation is often precipitated by transient tachycardia that reduces action potential duration, suggesting that a critical shortening of the excitation wavelength (EW) may contribute to the arrhythmic substrate. This study examined whether different INa blockers can produce contrasting effects on the rate adaptation of the EW, which would explain the difference in their safety profile...
2017: PloS One
https://www.readbyqxmd.com/read/28231274/early-skin-to-skin-contact-after-cesarean-section-a-randomized-clinical-pilot-study
#11
Martina Kollmann, Lisa Aldrian, Anna Scheuchenegger, Eva Mautner, Sereina A Herzog, Berndt Urlesberger, Reinhard B Raggam, Uwe Lang, Barbara Obermayer-Pietsch, Philipp Klaritsch
OBJECTIVE: Early bonding by skin-to-skin contact (SSC) has been demonstrated to be beneficial for mothers and newborns following vaginal delivery. The aim of this study was to investigate the impact of intraoperative bonding (early SSC) after cesarean section on neonatal adaptation, maternal pain and stress response. STUDY DESIGN: This prospective, randomized-controlled pilot study was performed at a single academic tertiary hospital (Department of Obstetrics and Gynecology, Medical University of Graz, Austria) between September 2013 and January 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28231078/effects-of-aerobic-exercise-training-on-ace-and-adrb2-gene-expression-plasma-angiotensin-ii-level-and-flow-mediated-dilation-a-study-on-obese-postmenopausal-women-with-prehypertension
#12
Noushin Azadpour, Bakhtyar Tartibian, Şükran Nazan Koşar
OBJECTIVE: The purpose of this study is to determine the effect of 10 weeks of moderate-intensity aerobic exercise training (MIET) on blood pressure (BP), angiotensin-converting enzyme (ACE) and β2-adrenergic receptor (ADRB2) gene expression in leukocytes, plasma angiotensin II (Ang II), and flow-mediated dilation (FMD) in obese postmenopausal women (PMW) with prehypertension. METHODS: Twenty-four obese prehypertensive PMW (aged 50-70 y; body mass index ≥30 kg/m) randomly assigned to control (n = 12) and exercise (n = 12) groups...
March 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28231026/late-administration-of-a-palladium-lipoic-acid-complex-poly-mva-modifies-cardiac-mitochondria-but-not-functional-or-structural-manifestations-of-radiation-induced-heart-disease-in-a-rat-model
#13
Vijayalakshmi Sridharan, John W Seawright, Francis J Antonawich, Merrill Garnett, Maohua Cao, Preeti Singh, Marjan Boerma
Exposure of the heart to ionizing radiation can cause adverse myocardial remodeling. In small animal models, local heart irradiation causes persistent alterations in cardiac mitochondrial function and swelling. POLY-MVA is a dietary supplement that contains a palladium lipoic acid complex that targets mitochondrial complex I and has been demonstrated to have greater redox potential than lipoic acid alone. POLY-MVA improves mitochondrial function and anti-oxidant enzyme activity in the aged rat heart. In this study, we tested whether POLY-MVA can mitigate cardiac effects of ionizing radiation...
February 23, 2017: Radiation Research
https://www.readbyqxmd.com/read/28230904/effects-of-re-heating-tissue-samples-to-core-body-temperature-on-high-velocity-ballistic-projectile-tissue-interactions
#14
Caitlin Humphrey, Maciej Henneberg, Christian Wachsberger, Nicholas Maiden, Jaliya Kumaratilake
Damage produced by high-speed projectiles on organic tissue will depend on the physical properties of the tissues. Conditioning organic tissue samples to human core body temperature (37°C) prior to conducting ballistic experiments enables their behavior to closely mimic that of living tissues. To minimize autolytic changes after death, the tissues are refrigerated soon after their removal from the body and re-heated to 37°C prior to testing. This research investigates whether heating 50-mm-cube samples of porcine liver, kidney, and heart to 37°C for varying durations (maximum 7 h) can affect the penetration response of a high-speed, steel sphere projectile...
February 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28230891/parathyroid-hormone-serum-concentration-in-central-european-patients-with-non-ischemic-heart-failure-as-a-potential-marker-of-disease-severity-and-poor-prognosis
#15
Grzegorz Marcin Kubiak, Agnieszka Kolaszko, Ewa Nowalany-Kozielska
IntroductionParathyroid hormone (PTH) might be considered as a potential marker of disease severity and worse prognosis in heart failure (HF) patients. ObjectivesTo assess PTH, vitamin D, phosphorus (P) and total calcium (Ca2+) serum concentrations in Central European patients suffering from HF of non-ischemic origin compared to non-HF volunteers.To evaluate potential correlations among the enumerated parameters, established markers of worse prognosis and declared sun exposure. Patients and methodsSerum intact-PTH, 25-OH vitamin D, P and total Ca2+ concentrations were assessed in a group of HF patients and non-HF volunteers...
February 23, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28230856/ginsenoside-rg5-increases-cardiomyocyte-resistance-to-ischemic-injury-through-regulation-of-mitochondrial-hexokinase-ii-and-dynamin-related-protein-1
#16
Yi-Lin Yang, Jia Li, Kang Liu, Lei Zhang, Qun Liu, Baolin Liu, Lian-Wen Qi
Hexokinase-II (HK-II) and dynamin-related protein 1 (Drp1) regulate mitochondrial function differently. This study was designed to investigate the cardioprotective effect of ginsenoside Rg5 (Rg5) with emphasis on the regulation of mitochondrial HK-II and Drp1. Saturated acid palmitate (PA) stimulation increased lactate accumulation and induced cellular acidification by impairing the activity of pyruvate dehydrogenase (PDH) in cardiomyocytes, leading to HK-II dissociation from mitochondria. Rg5 improved PDH activity and prevented cellular acidification by combating fatty-acid oxidation, contributing to protecting mitochondrial HK-II...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28230815/conceptual-foundations-of-systems-biology-explaining-complex-cardiac-diseases
#17
REVIEW
George E Louridas, Katerina G Lourida
Systems biology is an important concept that connects molecular biology and genomics with computing science, mathematics and engineering. An endeavor is made in this paper to associate basic conceptual ideas of systems biology with clinical medicine. Complex cardiac diseases are clinical phenotypes generated by integration of genetic, molecular and environmental factors. Basic concepts of systems biology like network construction, modular thinking, biological constraints (downward biological direction) and emergence (upward biological direction) could be applied to clinical medicine...
February 21, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230811/basigin-rs8259-polymorphism-confers-decreased-risk-of-chronic-heart-failure-in-a-chinese-population
#18
Mu-Peng Li, Xiao-Lei Hu, Yong-Long Yang, Yan-Jiao Zhang, Ji-Peng Zhou, Li-Ming Peng, Jie Tang, Xiao-Ping Chen
Left ventricular remodeling is an essential risk factor contributing to the pathogenesis of chronic heart failure (CHF). Basigin (BSG) promotes cardiovascular inflammation and myocardial remodeling processes by induction of extracellular matrix metalloproteinases and inflammatory cytokines. BSG rs8259 polymorphism was associated with BSG expression and risk of acute coronary syndrome. Therefore, we investigated whether rs8259 polymorphism contributes to risk and prognosis of CHF in Chinese patients. In total 922 adult patients with CHF and 1107 matched healthy controls were enrolled...
February 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28230797/zyz-772-prevents-cardiomyocyte-injury-by-suppressing-nox4-derived-ros-production-and-apoptosis
#19
Ying Wang, Liangjie Zhong, Xinhua Liu, Yi Zhun Zhu
Nox-dependent signaling plays critical roles in the development of heart failure, cardiac hypertrophy, and myocardial infarction. NADPH oxidase 4 (Nox4) as a major source of oxidative stress in the heart offers a new therapeutic target in cardiovascular disease. In the present work, a novel flavonoid was isolated from Zanthoxylum bungeanum. Its structure was elucidated as Quercetin-3-O-(6''-O-α-l-rhamnopyransoyl)-β-d-glucopyranoside-7-O-β-d-glucopyranoside (ZYZ-772) for the first time. ZYZ-772 exhibited significant cardio-protective property against CoCl₂ induced H9c2 cardiomyocyte cells injury...
February 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28230786/sex-specificity-of-mineralocorticoid-target-gene-expression-during-renal-development-and-long-term-consequences
#20
Laurence Dumeige, Caroline Storey, Lyvianne Decourtye, Melanie Nehlich, Christophe Lhadj, Say Viengchareun, Laurent Kappeler, Marc Lombès, Laetitia Martinerie
Sex differences have been identified in various biological processes, including hypertension. The mineralocorticoid signaling pathway is an important contributor to early arterial hypertension, however its sex-specific expression has been scarcely studied, particularly with respect to the kidney. Basal systolic blood pressure (SBP) and heart rate (HR) were measured in adult male and female mice. Renal gene expression studies of major players of mineralocorticoid signaling were performed at different developmental stages in male and female mice using reverse transcription quantitative PCR (RT-qPCR), and were compared to those of the same genes in the lung, another mineralocorticoid epithelial target tissue that regulates ion exchange and electrolyte balance...
February 21, 2017: International Journal of Molecular Sciences
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