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https://www.readbyqxmd.com/read/28646083/does-depression-increase-the-risk-of-stroke-in-patients-with-rheumatoid-arthritis-a-population-based-cohort-study
#1
Tzung-Yi Tsai, Ming-Chi Lu, Hanoch Livneh, Shan-Yun Chiu, Ning-Sheng Lai, How-Ran Guo
OBJECTIVES: Comorbid depression is common and undertreated in patients with rheumatoid arthritis (RA). It remains uncertain whether comorbid depression provoked the risk of poor clinical outcome, stroke in particular, among patients with RA. This work aimed to determine if depression onset during the treatment process increases stroke risk for patients with RA as compared with those with (1) neither RA nor depression, (2) RA only and (3) depression only. DESIGN: A nationwide, population-based cohort study...
June 22, 2017: BMJ Open
https://www.readbyqxmd.com/read/28646026/exosomes-promising-sacks-for-treating-ischemic-heart-disease
#2
Gui-Hao Chen, Jun Xu, Yue-Jin Yang
Ischemic heart disease(IHD) is the leading cause of death worldwide. Despite development of continuously improving therapeutic strategies, morbidity and mortality of patients with IHD remains relatively high. Exosomes are a subpopulation of vesicles that are universally recognized as major mediators in intercellular communication. Numerous preclinical studies showed that these tiny vesicles were protective in IHD, through such actions as alleviating myocardial ischemia/reperfusion injury, promoting angiogenesis, inhibiting fibrosis and facilitating cardiac regeneration...
June 23, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28645928/molecular-mechanisms-in-cardiomyopathy
#3
REVIEW
Keith Dadson, Ludger Hauck, Filio Billia
Cardiomyopathies represent a heterogeneous group of diseases that negatively affect heart function. Primary cardiomyopathies specifically target the myocardium, and may arise from genetic [hypertrophic cardiomyopathy (HCM), arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D), mitochondrial cardiomyopathy] or genetic and acquired [dilated cardiomyopathy (DCM), restrictive cardiomyopathy (RCM)] etiology. Modern genomics has identified mutations that are common in these populations, while in vitro and in vivo experimentation with these mutations have provided invaluable insight into the molecular mechanisms native to these diseases...
July 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28643108/integrated-tk-td-modeling-for-drug-induced-concurrent-tachycardia-and-qt-changes-in-beagle-dogs
#4
Fan Wu, Tycho Heimbach, Panos Hatsis, Hai-Ming Tang, Raviprakash Dugyala, Qin Yue, Tao Wang, Handan He
Drug-induced cardiotoxicity, including tachycardia and QT prolongation, remains a major safety concern that needs to be identified and its risk mitigated in early stages of drug development. In the present study, an integrated toxicokinetic-toxicodynamic (TK-TD) modeling approach within a nonlinear mixed-effect modeling framework is applied to investigate concurrent abnormal heart rate and QT changes in three beagle dogs, using a Novartis internal compound (NVS001) as the case example. By accounting for saturable drug absorption, circadian rhythms, drug-effect tolerance, and nonlinear rate-dependency of QT interval, the dynamic TK-TD model captures the experimentally observed drug effects on heart rate and QT interval across a wide dosing range of NVS001 in beagle dogs...
June 22, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28642208/assessing-the-efficacy-of-imagery-enhanced-cognitive-behavioral-group-therapy-for-social-anxiety-disorder-study-protocol-for-a-randomized-controlled-trial
#5
Peter M McEvoy, Michelle L Moulds, Jessica R Grisham, Emily A Holmes, David A Moscovitch, Delia Hendrie, Lisa M Saulsman, Ottmar V Lipp, Robert T Kane, Ronald M Rapee, Matthew P Hyett, David M Erceg-Hurn
Cognitive behavior group therapy (CBGT) is effective for social anxiety disorder (SAD), but a substantial proportion of patients do not typically achieve normative functioning. Cognitive behavioral models of SAD emphasize negative self-imagery as an important maintaining factor, and evidence suggests that imagery is a powerful cognitive mode for facilitating affective change. This study will compare two group CBGT interventions, one that predominantly uses verbally-based strategies (VB-CBGT) and another that predominantly uses imagery-enhanced strategies (IE-CBGT), in terms of (a) efficacy, (b) mechanisms of change, and (c) cost-effectiveness...
June 19, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28641300/prenatal-diagnosis-of-dextrocardia-with-complex-congenital-heart-disease-using-fetal-intelligent-navigation-echocardiography-fine-and-a-literature-review
#6
Lami Yeo, Suchaya Luewan, Dor Markush, Navleen Gill, Roberto Romero
Fetal dextrocardia is a type of cardiac malposition where the major axis from base to apex points to the right side. This condition is usually associated with a wide spectrum of complex cardiac defects. As a result, dextrocardia is conceptually difficult to understand and diagnose on prenatal ultrasound. The advantage of four-dimensional sonography with spatiotemporal image correlation (STIC) is that this modality can facilitate fetal cardiac examination. A novel method known as fetal intelligent navigation echocardiography (FINE) allows automatic generation of nine standard fetal echocardiography views in normal hearts by applying intelligent navigation technology to STIC volume datasets...
June 23, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28639971/effective-approaches-to-address-the-global-cardiovascular-disease-burden
#7
Pablo M Lamelas, Salim Yusuf, J D Schwalm
PURPOSE OF REVIEW: Describe the global burden of cardiovascular disease (CVD), highlight barriers to evidence-based care and propose effective interventions based on identified barriers. RECENT FINDINGS: The global burden of CVD is increasing worldwide. This trend is steeper in lower income countries, where CVD incidence and fatality remains high. Risk factor control, around the world, remains poor, especially in lower and middle-income countries. Barriers at the patient, healthcare provider and health system have been identified...
July 20, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28639668/a-strategy-for-fabrication-of-controllable-3d-pattern-containing-clusters-and-nanoparticles-inside-a-solid-material
#8
Qiuqun Chen, Hui Song, Fangteng Zhang, Hang Zhang, Yongze Yu, Zhi Chen, Rongfei Wei, Ye Dai, Jianrong Qiu
Directly controlling the growth process of clusters and nanoparticles is an effective way to tune their specific properties, which has been considered as a significant issue lying at the heart of nanotechnology. For technological applications, great strides have been made in the assembly of clusters and nanoparticles. However, controllable synthesis of clusters and nanoparticles inside a bulk solid-state medium remains a tremendous challenge, which is important for integrated devices. Here we report a strategy for space-selective control of elemental tellurium (Te) precipitation as clusters or nanoparticles in glass by femtosecond (fs) laser irradiation...
June 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28638158/cardiac-surgery-in-developing-countries
#9
REVIEW
Hannah A Reichert, Thomas E Rath
This literature review summarizes recommendations and challenges encountered when establishing cardiac surgery centers in developing countries and common heart diseases encountered abroad. Cardiac surgery is not widely available in most developing countries, and most patients have no choice but to live in morbid conditions. The ideal continuous treatment for these patients would be provided by a local, sustainable cardiac surgery center. A collaborative effort from international volunteers, nongovernmental organizations, local governments, and private benefactors is necessary to facilitate adequate cardiac care in developing countries...
June 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/28636371/iron-oxidation-and-core-formation-in-recombinant-heteropolymeric-human-ferritins
#10
Matthew R Mehlenbacher, Maura Poli, Paolo Arosio, Paolo Santambrogio, Sonia Levi, N Dennis Chasteen, Fadi Bou-Abdallah
In animals, the iron storage and detoxification protein, ferritin, is composed of two functionally and genetically distinct subunit types, H (Heavy) and L (Light), which co-assemble in various ratios with tissue specific distributions to form shell-like protein structures of 24 subunits within which a mineralized iron core is stored. The H-subunit possesses a ferroxidase center (FC) which catalyzes Fe(II) oxidation whereas the L-subunit does not. To assess the role of the L-subunit in iron oxidation and core formation, two human recombinant heteropolymeric ferritins, designated H-rich and L-rich with ratios of ~ 20H:4L and ~ 22L:2H, respectively, were employed and compared to the human homopolymeric H-subunit ferritin (HuHF)...
June 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28636191/-fast-track-development-and-approval-process-for-heart-failure-therapeutics
#11
L Papadimitriou, J Butler
Heart failure (HF) is a global epidemic, with a high mortality and morbidity burden. In such diseases, earlier access to lifesaving therapeutic regimens is imperative, and could be accomplished by improving the drug development and approval process, without jeopardizing patient safety. The US Food and Drug Administration (FDA) has already established mechanisms facilitating the latter, but further guidance to enhance and expedite the process holds promise to further improve patient outcomes.
June 21, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28635339/methods-for-estimating-costs-in-patients-with-hyperlipidemia-experiencing-their-first-cardiovascular-event-in-the-united-kingdom
#12
Mark D Danese, Michelle Gleeson, Robert I Griffiths, David Catterick, Lucie Kutikova
AIMS: Methods for integrating external costs into clinical databases are not well-characterized. The purpose of this research was to describe and implement methods for estimating the cost of hospitalizations, prescriptions, and general practitioner and specialist visits used to manage hyperlipidemia patients experiencing cardiovascular (CV) events in the United Kingdom (UK). METHODS: This study was a retrospective cohort study using the Clinical Practice Research Datalink and Hospital Episode Statistics data...
June 21, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28629624/the-protective-role-of-oestradiol-against-silent-myocardial-ischemia-and-hypertension-risk-in-south-african-men-the-sabpa-study
#13
Nicolaas T Malan, Roland von Känel, Hendrik S Steyn, Ruan Kruger, Leoné Malan
BACKGROUND: Oestradiol has a protective effect on coronary artery health in women but the effect it has on men, is controversial. A translational approach was followed to assess whether sex hormone levels are associated with silent myocardial ischemia (SMI) and hypertension risk over a 3year period. METHODS: Participants included 89 Black and 91 White men (aged 21-63years) participating in both phases of the Sympathetic activity and Ambulatory Blood Pressure in Africans prospective study...
June 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28627793/increased-sympathetic-outflow-induces-adaptation-to-acute-experimental-pain
#14
Lior Dayan, Uri Hochberg, Hadas Nahman-Averbuch, Silviu Brill, Jacob N Ablin, Giris Jacob
BACKGROUND: There are interrelationships between the autonomic nervous system and pain. This study aims to explore the effect of different autonomic manipulations on pain perception and modulation. METHODS: Twenty healthy subjects (10 men and 10 women, mean age 25±3) participate in this single-blinded, semi-randomized, controlled study, which included 2 study visits. Warm and heat pain thresholds, conditioned pain modulation and pain adaptation were tested before and after administration of phenylephrine, clonidine, yohimbine and saline...
June 19, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28627438/genome-wide-identification-phylogeny-and-expression-of-bone-morphogenetic-protein-genes-in-tetraploidized-common-carp-cyprinus-carpio
#15
Lin Chen, Chuanju Dong, Shengnan Kong, Jiangfan Zhang, Xuejun Li, Peng Xu
Bone morphogenetic proteins (Bmps) are a group of signaling molecules known to play important roles during formation and maintenance of various organs, not only bone, but also muscle, blood and so on. Common carp (Cyprinus carpio) is one of the most intensively studied fish due to its economic and environmental importance. Besides, common carp had encountered an additional round of whole genome duplication (WGD) compared with many closely related diploid teleost, which make it one of the most important models for genome evolutionary studies in teleost...
June 13, 2017: Gene
https://www.readbyqxmd.com/read/28626459/the-immunogenicity-and-immune-tolerance-of-pluripotent-stem-cell-derivatives
#16
REVIEW
Xin Liu, Wenjuan Li, Xuemei Fu, Yang Xu
Human embryonic stem cells (hESCs) can undergo unlimited self-renewal and differentiate into all cell types in human body, and therefore hold great potential for cell therapy of currently incurable diseases including neural degenerative diseases, heart failure, and macular degeneration. This potential is further underscored by the promising safety and efficacy data from the ongoing clinical trials of hESC-based therapy of macular degeneration. However, one main challenge for the clinical application of hESC-based therapy is the allogeneic immune rejection of hESC-derived cells by the recipient...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28625674/regional-cerebral-cortical-thickness-correlates-with-autonomic-outflow
#17
REVIEW
Katelyn N Wood, Mark B Badrov, Mark R Speechley, J Kevin Shoemaker
Dysregulation of autonomic control often develops with advancing age, favoring a chronic state of heightened sympathetic outflow with parasympathetic withdrawal. However, the mechanisms of this age-related autonomic impairment are not known. This study tested the hypothesis that inter-individual differences in autonomic outflow across the adult age-span are related to cerebral cortex thickness. A total of 55 healthy, active individuals participated in this study (21-73years; 18 female). Physical fitness was treated as a possible covariate (VO2peak: 26-81mL/kg/min)...
June 7, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28625511/lung-fluid-clearance-in-chronic-heart-failure-patients
#18
Dani-Louise Dixon, Carmine G De Pasquale, Mark D Lawrence, Elena Cavallaro, Vito Rubino, Andrew D Bersten
Chronic elevation of pulmonary microvascular pressure (Pmv) consistently leads to alveolocapillary barrier thickening and reduction in the filtration coefficient. In animal models of chronic heart failure (CHF) the lung remains dry despite hydrostatic forces. As fluid flux is bi-directional, it has been postulated that an increase in alveolar fluid clearance may facilitate the dry lung when Pmv is chronically elevated. In this study we aimed to examine alveolar fluid clearance in ambulatory patients with CHF secondary to left ventricular (LV) systolic dysfunction compared against non-CHF controls...
May 26, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28624755/stereo-vision-based-tracking-of-soft-tissue-motion-with-application-to-online-ablation-control-in-laser-microsurgery
#19
Andreas Schoob, Dennis Kundrat, Lüder A Kahrs, Tobias Ortmaier
Recent research has revealed that image-based methods can enhance accuracy and safety in laser microsurgery. In this study, non-rigid tracking using surgical stereo imaging and its application to laser ablation is discussed. A recently developed motion estimation framework based on piecewise affine deformation modeling is extended by a mesh refinement step and considering texture information. This compensates for tracking inaccuracies potentially caused by inconsistent feature matches or drift. To facilitate online application of the method, computational load is reduced by concurrent processing and affine-invariant fusion of tracking and refinement results...
June 8, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28621257/oral-transmucosal-detomidine-gel-in-new-zealand-white-rabbits-oryctolagus-cuniculus
#20
Morika D Williams, C Tyler Long, Jessica R Durrant, Gabriel P McKeon, Heather R Shive, Emily H Griffith, Kristen M Messenger, Richard E Fish
Handling and restraining rabbits for routine procedures may be impossible without prior sedation, result in unnecessarystress or injury to the rabbit or handler, and increase experimental variability. Parenteral administration of sedatives can cause stress also, as well as localized pain and tissue damage, especially in fractious animals. Detomidine hydrochloride, an α2-adrenergic receptor agonist, is commercially available in an oral transmucosal (OTM) gel formulation that is FDA-approved for sedation and restraint in horses...
June 15, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
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