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https://www.readbyqxmd.com/read/29332571/role-of-heart-rate-reduction-in-the-management-of-myocarditis
#1
Chen Guang-Yi, Ge Li-Sha, Li Yue-Chun
The morbidity of myocarditis demonstrates an upward tendency by years, is commonly defined as the inflammation of myocytes and is caused by multiple factors. With the development of the molecular biological technique, great breakthroughs in the diagnosis and understanding of pathophysiological mechanisms of myocarditis have recently been achieved. Several questions remain unresolved, however, including standard treatment approaches to myocarditis, which remain controversial and ambiguous. Heart rate, as an independent risk factor, has been shown to be related to cardiac disease...
January 10, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29276000/a-standardized-test-to-document-cataplexy
#2
Stefano Vandi, Fabio Pizza, Elena Antelmi, Giulia Neccia, Martina Iloti, Alice Mazzoni, Patrizia Avoni, Giuseppe Plazzi
OBJECTIVE/BACKGROUND: Cataplexy is the pathognomonic symptom of narcolepsy type 1 (NT1). Since it is considered difficult to be directly observed or documented by clinicians, its diagnosis relies mainly on history taking. Our study aimed at testing the feasibility of a standardized video recording procedure under emotional stimulation to document cataplexy in the diagnostic work-up of suspected hypersomnia of central origin. PATIENTS/METHODS: Two-hundred-eight consecutive patients underwent the diagnostic work-up and reached the final diagnosis of NT1 (n = 133), idiopathic hypersomnia or narcolepsy type 2 (IH/NT2 group, n = 33), or subjective excessive daytime sleepiness (sEDS group, n = 42)...
October 9, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29239349/influences-of-ivabradine-treatment-on-serum-levels-of-cardiac-biomarkers-sst2-gdf-15-supar-and-h-fabp-in-patients-with-chronic-heart-failure
#3
Peter Jirak, Dzeneta Fejzic, Vera Paar, Bernhard Wernly, Rudin Pistulli, Ilonka Rohm, Christian Jung, Uta C Hoppe, P Christian Schulze, Michael Lichtenauer, Atilla Yilmaz, Daniel Kretzschmar
Chronic heart failure (CHF) represents a major cause of hospitalization and death. Recent evidence shows that novel biomarkers such as soluble suppression of tumorigenicity (sST2), growth-differentiation factor-15 (GDF-15), soluble urokinase plasminogen activator receptor (suPAR) and heart-type fatty acid binding protein (H-FABP) are correlated with inflammatory and ischemic responses in CHF patients. In this study we examined the effects of Ivabradine that inhibited the hyperpolarization-activated cyclic nucleotide-gated channel (HCN channel, also called funny current If), thereby leading to selective heart rate reduction and improved myocardial oxygen supply on the cardiac biomarkers sST2, GDF-15, suPAR and H-FABP in 50 CHF patients at the University Hospital of Jena...
December 14, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29225577/if-channel-as-an-emerging-therapeutic-target-for-cardiovascular-diseases-a-review-of-current-evidence-and-controversies
#4
REVIEW
Hayelom G Mengesha, Tadesse B Tafesse, Mohammed H Bule
In 2015, non-communicable diseases accounted for 39.5 million (70%) of the total 56.4 million deaths that occurred globally, of which 17.7 million (45%) were due to cardiovascular diseases. An elevated heart rate is considered to be one of the independent predictors and markers of future cardiovascular diseases. A variety of experimental and epidemiological studies have found that atherosclerosis, heart failure, coronary artery disease, stroke, and arrhythmia are linked to elevated heart rate. Although there are established drugs to reduce the heart rate, these drugs have undesirable side effects...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29202444/evaluation-of-the-hospital-anxiety-and-depression-scale-hads-in-screening-stroke-patients-for-symptoms-item-response-theory-irt-analysis
#5
Salma A Ayis, Luis Ayerbe, Mark Ashworth, Charles DA Wolfe
BACKGROUND: Variations have been reported in the number of underlying constructs and choice of thresholds that determine caseness of anxiety and /or depression using the Hospital Anxiety and Depression scale (HADS). This study examined the properties of each item of HADS as perceived by stroke patients, and assessed the information these items convey about anxiety and depression between 3 months to 5 years after stroke. METHODS: The study included 1443 stroke patients from the South London Stroke Register (SLSR)...
November 28, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29197941/heterogeneous-functional-expression-of-the-sustained-inward-na-current-in-guinea-pig-sinoatrial-node-cells
#6
Futoshi Toyoda, Ding Wei-Guang, Hiroshi Matsuura
The sustained inward Na+ current (I st) identified in the sinoatrial node (SAN) cell has been suggested to play a pivotal role in cardiac pacemaking. However, the composition of cells in the SAN is heterogeneous and cell-to-cell variability in the magnitude of I st remains to be fully characterized. The present study investigated the current density of I st in morphologically different types of pacemaker cells dissociated from guinea pig SAN. I st was preferentially detected in spontaneously active spindle or spider-shaped cells, but was less well expressed in larger-sized elongated spindle-type cells and practically absent in clearly striated atrial-like cells, despite clear expression of the funny current (I f)...
December 3, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29180976/are-clowns-good-for-everyone-the-influence-of-trait-cheerfulness-on-emotional-reactions-to-a-hospital-clown-intervention
#7
Sarah Auerbach
Trait cheerfulness predicts individual differences in experiences and behavioral responses in various humor experiments and settings. The present study is the first to investigate whether trait cheerfulness also influences the impact of a hospital clown intervention on the emotional state of patients. Forty-two adults received a clown visit in a rehabilitation center and rated their emotional state and trait cheerfulness afterward. Facial expressions of patients during the clown visit were coded with the Facial Action Coding System...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29115193/personality-modulates-amygdala-and-insula-connectivity-during-humor-appreciation-an-event-related-fmri-study
#8
Philipp Berger, Florian Bitsch, Arne Nagels, Benjamin Straube, Irina Falkenberg
Previous research and theory implicate that personality traits, such as extraversion and neuroticism, influence the processing of humor, as indicated by alterations in the activation of fronto-temporal and mesocorticolimbic brain regions during humor processing. In the current study, we sought to complement these findings by testing whether inter-individual differences in functional connectivity of humor-related brain regions are modulated by stable personality characteristics during humor processing. Using fMRI techniques, we studied 19 healthy subjects during the processing of standardized humorous and neutral cartoons...
November 8, 2017: Social Neuroscience
https://www.readbyqxmd.com/read/29107716/pacsin-2-is-required-for-the-maintenance-of-a-normal-cardiac-function-in-the-developing-mouse-heart
#9
Judith Semmler, Jan Kormann, Sureshkumar Perumal Srinivasan, Annette Köster, Daniel Sälzer, Michael Reppel, Jürgen Hescheler, Markus Plomann, Filomain Nguemo
The Pacsin proteins (Pacsin 1, 2 and 3) play an important role in intracellular trafficking and thereby signal transduction in many cells types. This study was designed to examine the role of Pacsin 2 in cardiac development and function. We investigated the development and electrophysiological properties of Pacsin 2 knockout (P2KO) hearts and single cardiomyocytes isolated from 11.5 and 15.5days old fetal mice. Immunofluorescence experiments confirmed the lack of Pacsin 2 protein expression in P2KO cardiac myocytes in comparison to wildtype (WT)...
October 28, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29098274/developing-appreciation-for-sarcasm-and-sarcastic-gossip-it-depends-on-perspective
#10
Melanie Glenwright, Brent Tapley, Jacqueline K S Rano, Penny M Pexman
Background: Speakers use sarcasm to criticize others and to be funny; the indirectness of sarcasm protects the addressee's face (Brown & Levinson, 1987). Thus, appreciation of sarcasm depends on the ability to consider perspectives. Purpose: We investigated development of this ability from late childhood into adulthood and examined effects of interpretive perspective and parties present. Method: We presented 9- to 10-year-olds, 13- to 14-year-olds, and adults with sarcastic and literal remarks in three parties-present conditions: private evaluation, public evaluation, and gossip...
November 9, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/29078315/one-to-four-year-olds-connect-diverse-positive-emotional-vocalizations-to-their-probable-causes
#11
Yang Wu, Paul Muentener, Laura E Schulz
The ability to understand why others feel the way they do is critical to human relationships. Here, we show that emotion understanding in early childhood is more sophisticated than previously believed, extending well beyond the ability to distinguish basic emotions or draw different inferences from positively and negatively valenced emotions. In a forced-choice task, 2- to 4-year-olds successfully identified probable causes of five distinct positive emotional vocalizations elicited by what adults would consider funny, delicious, exciting, sympathetic, and adorable stimuli (Experiment 1)...
November 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29060085/video-analysis-of-youtube-funnies-to-aid-the-study-of-human-gait-and-falls-preliminary-results-and-proof-of-concept
#12
Babak Taati, Pranay Lohia, Avril Mansfield, Ahmed B Ashraf
Because falls are funny, YouTube and other video sharing sites contain a large repository of real-life falls. We propose extracting gait and balance information from these videos to help us better understand some of the factors that contribute to falls. Proof-of-concept is explored in a single video containing multiple (n=14) falls/non-falls in the presence of an unexpected obstacle. The analysis explores: computing spatiotemporal parameters of gait in a video captured from an arbitrary viewpoint; the relationship between parameters of gait from the last few steps before the obstacle and falling vs...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28960127/use-of-short-animal-themed-videos-to-enhance-veterinary-students-mood-attention-and-understanding-of-pharmacology-lectures
#13
Lori R Kogan, Pete Hellyer, Tod R Clapp, Erica Suchman, Jennifer McLean, Regina Schoenfeld-Tacher
Professional DVM training is inherently stressful and challenging for students. This study evaluated a simple intervention-short breaks during a veterinary pharmacology lecture course in the form of funny/cute animal videos (Mood Induction Procedures, or MIP)-to assess for potential impact on students' mood, interest in material, and perceived understanding of material. Ten YouTube video clips showing cats or dogs were selected to influence students' affective states. The videos were shown in a required pharmacology class offered during the fall semester of the second year of the DVM program at a large, land-grant institution in the Western US...
September 29, 2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/28958335/the-clinical-use-of-ivabradine
#14
REVIEW
Jacob S Koruth, Anuradha Lala, Sean Pinney, Vivek Y Reddy, Srinivas R Dukkipati
The clinical use of ivabradine has and continues to evolve along channels that are predicated on its mechanism of action. It selectively inhibits the funny current (If) in sinoatrial nodal tissue, resulting in a decrease in the rate of diastolic depolarization and, consequently, the heart rate, a mechanism that is distinct from those of other negative chronotropic agents. Thus, it has been evaluated and is used in select patients with systolic heart failure and chronic stable angina without clinically significant adverse effects...
October 3, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28952785/frightfully-funny-combining-threat-and-humour-in-health-messages-for-men-and-women
#15
Hanneke Hendriks, Loes Janssen
OBJECTIVE: It is imperative for public health to investigate what factors may reduce defensive responses and increase the effectiveness of health information. The present research investigated gender differences in responses to threatening health-promoting information communicated with humour. DESIGN: Male and female participants were exposed to a health message stressing the negative consequences of binge drinking (Experiment 1; N = 209) or caffeine consumption (Experiment 2; N = 242), that did or did not contain a funny visual metaphor (Experiment 1) or a slapstick cartoon (Experiment 2)...
September 27, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28930912/reducing-elevated-heart-rates-in-patients-with-multiple-organ-dysfunction-syndrome-with-the-if-funny-channel-current-inhibitor-ivabradine
#16
Sebastian Nuding, Jochen Schröder, Peter Presek, Andreas Wienke, Ursula Müller-Werdan, Henning Ebelt, Karl Werdan
INTRODUCTION: A heart rate higher than 90 beats/min indicates an unfavorable prognosis for patients with multiple organ dysfunction syndrome (MODS). We sought to investigate the effect of the pacemaker current (If) inhibitor ivabradine on heart rate, hemodynamics, and disease severity among patients with MODS. MATERIAL AND METHODS: In this prospective, controlled, randomized, open-label, two-arm phase II trial, seventy patients with MODS, a sinus rhythm of at least 90 beats/min, and contraindications to β-blocker therapy were randomly assigned to receive the standard treatment ± ivabradine (5 mg twice daily) for 96 h via the enteral route...
September 19, 2017: Shock
https://www.readbyqxmd.com/read/28868308/phosphodiesterases-3-and-4-differentially-regulate-the-funny-current-if-in-mouse-sinoatrial-node-myocytes
#17
Joshua R St Clair, Eric D Larson, Emily J Sharpe, Zhandi Liao, Catherine Proenza
Cardiac pacemaking, at rest and during the sympathetic fight-or-flight response, depends on cAMP (3',5'-cyclic adenosine monophosphate) signaling in sinoatrial node myocytes (SAMs). The cardiac "funny current" (If) is among the cAMP-sensitive effectors that drive pacemaking in SAMs. If is produced by hyperpolarization-activated, cyclic nucleotide-sensitive (HCN) channels. Voltage-dependent gating of HCN channels is potentiated by cAMP, which acts either by binding directly to the channels or by activating the cAMP-dependent protein kinase (PKA), which phosphorylates them...
September 2017: Journal of Cardiovascular Development and Disease
https://www.readbyqxmd.com/read/28857002/the-fragile-brain-the-strange-hopeful-science-of-dementia-taylor-kathleen-the-fragile-brain-the-strange-hopeful-science-of-dementia-336pp-%C3%A2-20-oxford-university-press-9780198726081-0198726082-formula-see-text
#18
(no author information available yet)
This is the best book I have read on dementia. It is an intricate and intense read, making it ideal for people who want to understand the complexity of brain failure. The author is funny and interesting in the analogies she uses to convey the science.
August 31, 2017: Nursing Older People
https://www.readbyqxmd.com/read/28855177/small-functional-if-current-in-sinoatrial-pacemaker-cells-of-the-brown-trout-salmo-trutta-fario-heart-despite-strong-expression-of-hcn-channel-transcripts
#19
Minna Hassinen, Jaakko Haverinen, Matti Vornanen
Funny current (If), formed by hyperpolarization-activated HCN channels, is supposed to be crucial for membrane clock regulating the cardiac pacemaker mechanism. We examined the presence and activity of HCN channels in the brown trout (Salmo trutta fario) sinoatrial (SA) pacemaker cells, and their putative role in heart rate (fH) regulation. Six HCN transcripts (HCN1, HCN2a, HCN2ba, HCN2bb, HCN3 and HCN4) were expressed in the brown trout heart. The total HCN transcript abundance was 4.0 and 4.9 times higher in SA pacemaker tissue than in atrium and ventricle, respectively...
August 30, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28801065/multimodal-mental-imagery
#20
REVIEW
Bence Nanay
When I am looking at my coffee machine that makes funny noises, this is an instance of multisensory perception - I perceive this event by means of both vision and audition. But very often we only receive sensory stimulation from a multisensory event by means of one sense modality, for example, when I hear the noisy coffee machine in the next room, that is, without seeing it. The aim of this paper is to bring together empirical findings about multimodal perception and empirical findings about (visual, auditory, tactile) mental imagery and argue that on occasions like this, we have multimodal mental imagery: perceptual processing in one sense modality (here: vision) that is triggered by sensory stimulation in another sense modality (here: audition)...
July 17, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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