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https://www.readbyqxmd.com/read/28527834/perceptions-of-seniors-with-heart-failure-regarding-autonomous-zero-effort-monitoring-of-physiological-parameters-in-the-smart-home-environment
#1
Sherry L Grace, Golnoush Taherzadeh, Isaac Sung Jae Chang, Jennifer Boger, Amaya Arcelus, Susanna Mak, Caroline Chessex, Alex Mihailidis
BACKGROUND: Technological advances are leading to the ability to autonomously monitor patient's health status in their own homes, to enable aging-in-place. OBJECTIVES: To understand the perceptions of seniors with heart failure (HF) regarding smart-home systems to monitor their physiological parameters. METHODS: In this qualitative study, HF outpatients were invited to a smart-home lab, where they completed a sequence of activities, during which the capacity of 5 autonomous sensing modalities was compared to gold standard measures...
May 17, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28521955/prevalence-of-relevant-ns5a-resistance-associated-substitutions-to-elbasvir-in-genotype-1a-hepatitis-c-virus-patients-in-spain
#2
Claudia Palladino, Beatriz Esteban-Cartelle, Irene Mate-Cano, Marta Sánchez-Carrillo, Salvador Resino, Verónica Briz
Resistance-associated substitutions (RASs) to the new HCV NS5A inhibitor elbasvir may limit its efficacy and lead to virological failure in HCV-GT1a-infected patients. There are no data outside clinical trials evaluating their prevalence and impact in grazoprevir/elbasvir in GT1a-infected patients in Spain. A multicentre cross-sectional study of 632 initial patients was conducted. In 13 of these patients, the sample could not be amplified or a consensus sequence by Sanger sequencing could not be performed. Ultimately, 617 HCV-G1a-infected individuals treated at 84 Spanish hospitals from the 17 autonomous communities plus the 2 autonomous cities of Spain were analysed...
May 15, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28513079/rem-sleep-behavior-disorder-in-parkinson-s-disease-and-other-synucleinopathies
#3
REVIEW
Erik K St Louis, Angelica R Boeve, Bradley F Boeve
Rapid eye movement sleep behavior disorder is characterized by dream enactment and complex motor behaviors during rapid eye movement sleep and rapid eye movement sleep atonia loss (rapid eye movement sleep without atonia) during polysomnography. Rapid eye movement sleep behavior disorder may be idiopathic or symptomatic and in both settings is highly associated with synucleinopathy neurodegeneration, especially Parkinson's disease, dementia with Lewy bodies, multiple system atrophy, and pure autonomic failure...
May 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28511811/autoimmune-voltage-gated-potassium-channelopathy-presenting-with-catecholamine-excess
#4
K Amy Stepp, Christin Folker, Marie Tanzer, Jennifer Hayman, Thomas Reynolds, Leah Mallory
BACKGROUND: Autoimmune voltage-gated potassium channelopathies have been associated with a range of neurological presenting symptoms, including central, peripheral, and autonomic dysfunction. PATIENT DESCRIPTION: We describe a 12-year-old boy who presented with nine months of pain, anxiety, and 30-pound weight loss. He was admitted for failure to thrive, then noted to be persistently hypertensive and tachycardic. Plasma metanephrines and urine metanephrines and catecholamines were elevated...
April 8, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28490481/vitamin-a-deficiency-due-to-chronic-malabsorption-an-ophthalmic-manifestation-of-a-systemic-condition
#5
James Cheshire, Sai Kolli
A 47-year-old woman presented with a 4-week history of progressive loss of vision, first manifesting as night blindness. Additionally, the patient reported frequent severe episodes of diarrhoea over the past month. Her medical history included end-stage renal failure for which she was currently on haemodialysis after a failed renal transplant, chronic pancreatitis and autonomic diabetes mellitus. Ophthalmological examination revealed severe bilateral corneal xerosis, bilateral Bitot's spots and inferior ulceration of the right cornea...
May 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28472396/chronic-activation-of-hypothalamic-oxytocin-neurons-improves-cardiac-function-during-left-ventricular-hypertrophy-induced-heart-failure
#6
Kara Garrott, Jhansi Dyavanapalli, Edmund Cauley, Mary Kate Dwyer, Sarah Kuzmiak-Glancy, Xin Wang, David Mendelowitz, Matthew Kay
AIMS: A distinctive hallmark of heart failure (HF) is autonomic imbalance, consisting of increased sympathetic activity and decreased parasympathetic tone. Recent work suggests that activation of hypothalamic oxytocin (OXT) neurons could improve autonomic balance during HF. We hypothesized that a novel method of chronic selective activation of hypothalamic OXT neurons will improve cardiac function and reduce inflammation and fibrosis in a rat model of HF. METHODS AND RESULTS: Two groups of male Sprague-Dawley rats underwent trans-ascending aortic constriction (TAC) to induce left ventricular (LV) hypertrophy that progresses to HF...
May 2, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28466515/imaging-the-molecular-motions-of-autonomous-repair-in-a-self-healing-polymer
#7
Hanne M van der Kooij, Arijana Susa, Santiago J García, Sybrand van der Zwaag, Joris Sprakel
Self-healing polymers can significantly extend the service life of materials and structures by autonomously repairing damage. Intrinsic healing holds great promise as a design strategy to mitigate the risks of damage by delaying or preventing catastrophic failure. However, experimentally resolving the microscopic mechanisms of intrinsic repair has proven highly challenging. This work demonstrates how optical micromechanical mapping enables the quantitative imaging of these molecular-scale dynamics with high spatiotemporal resolution...
May 3, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28465761/autonomic-breathing-abnormalities-in-rett-syndrome-caregiver-perspectives-in-an-international-database-study
#8
Jessica Mackay, Jenny Downs, Kingsley Wong, Jane Heyworth, Amy Epstein, Helen Leonard
BACKGROUND: Rett syndrome is a severe neurodevelopmental disorder associated with mutations in the MECP2 gene. Irregular breathing patterns and abdominal bloating are prominent but poorly understood features. Our aims were to characterize the abnormal breathing patterns and abdominal bloating, investigate the distribution of these by age and mutation type and examine their impact and management from a caregiver perspective. METHODS: We invited previously recruited families from the International Rett Syndrome Study to complete a web-based questionnaire concerning their family member with Rett syndrome aged between 2 and 57 years...
2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28462724/non-pharmacological-modulation-of-the-autonomic-nervous-system-for-heart-failure-treatment-where-do-we-stand
#9
Costas Tsioufis, Panayiotis Iliakis, Alexandros Kasiakogias, Dimitrios Konstantinidis, Dragan Lovic, Dimitrios Petras, Michalis Doumas, Eleftherios Tsiamis, Vasilios Papademetriou, Dimitrios Tousoulis
An imbalance in the autonomic nervous system (ANS) is a central pathophysiologic mechanism in heart failure (HF) and has been a principal target of treatment in these patients. Traditional pharmacologic agents do not provide specific modulation of discrete arms of the ANS, while side effects may lead to poor tolerance. Technological advances have provided a series of invasive methods that may provide a focused effect on the ANS in selected patient groups. Renal denervation, initially targeted for patients with resistant hypertension, has given positive preliminary results in terms of heart structure and function...
April 28, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28461905/dystonic-storm-a-practical-clinical-and-video-review
#10
REVIEW
Pichet Termsarasab, Steven J Frucht
Dystonic storm is a frightening hyperkinetic movement disorder emergency. Marked, rapid exacerbation of dystonia requires prompt intervention and admission to the intensive care unit. Clinical features of dystonic storm include fever, tachycardia, tachypnea, hypertension, sweating and autonomic instability, often progressing to bulbar dysfunction with dysarthria, dysphagia and respiratory failure. It is critical to recognize early and differentiate dystonic storm from other hyperkinetic movement disorder emergencies...
2017: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/28460120/post-neonatal-tetanus-in-a-picu-of-a-developing-economy-intensive-care-needs-outcome-and-predictors-of-mortality
#11
Suresh Kumar Angurana, Muralidharan Jayashree, Arun Bansal, Sunit Singhi, Karthi Nallasamy
Objectives: To evaluate pediatric intensive care unit (PICU) needs, outcome and predictors of mortality in post-neonatal tetanus. Materials and methods: Review of 30 consecutive post-neonatal tetanus cases aged 1 months to 12 years admitted to a PICU in north India over a period of 10 years (January 2006 to December 2015). Results: Chronic suppurative otitis media was the commonest portal of entry. All received tetanus toxoid, human tetanus immunoglobulin (HTIG) and appropriate antibiotics; 7 (23...
April 27, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28455351/the-nucleoporin-nup2-contains-a-meiotic-autonomous-region-that-promotes-the-dynamic-chromosome-events-of-meiosis
#12
Daniel B Chu, Tatiana Gromova, Trent A C Newman, Sean M Burgess
Meiosis is a specialized cellular program required to create haploid gametes from diploid parent cells. Homologous chromosomes pair, synapse, and recombine in a dynamic environment that accommodates gross chromosome reorganization and significant chromosome motion, which are critical for normal chromosome segregation. In Saccharomyces cerevisiae, Ndj1 is a meiotic telomere-associated protein required for physically attaching telomeres to proteins embedded in the nuclear envelope. In this study, we identified additional proteins that act at the nuclear periphery from meiotic cell extracts, including Nup2, a nonessential nucleoporin with a known role in tethering interstitial chromosomal loci to the nuclear pore complex...
April 28, 2017: Genetics
https://www.readbyqxmd.com/read/28454860/assessing-drivers-response-during-automated-driver-support-system-failures-with-non-driving-tasks
#13
Sijun Shen, David M Neyens
INTRODUCTION: With the increase in automated driver support systems, drivers are shifting from operating their vehicles to supervising their automation. As a result, it is important to understand how drivers interact with these automated systems and evaluate their effect on driver responses to safety critical events. This study aimed to identify how drivers responded when experiencing a safety critical event in automated vehicles while also engaged in non-driving tasks. METHOD: In total 48 participants were included in this driving simulator study with two levels of automated driving: (a) driving with no automation and (b) driving with adaptive cruise control (ACC) and lane keeping (LK) systems engaged; and also two levels of a non-driving task (a) watching a movie or (b) no non-driving task...
June 2017: Journal of Safety Research
https://www.readbyqxmd.com/read/28451646/chronotropic-incompetence-and-risk-of-atrial-fibrillation-the-henry-ford-exercise-testing-fit-project
#14
Wesley T O'Neal, Waqas T Qureshi, Michael J Blaha, Zeina A Dardari, Jonathan K Ehrman, Clinton A Brawner, Elsayed Z Soliman, Mouaz H Al-Mallah
OBJECTIVES: To examine the association between chronotropic incompetence and incident atrial fibrillation (AF). BACKGROUND: Patients with inadequate heart rate response during exercise may have abnormalities in sinus node function or autonomic tone that predispose to the development of AF. METHODS: We examined the association between heart rate response and incident AF in 57,402 (mean age=54±13 years, 47% female, 64% white) patients free of baseline AF who underwent exercise-treadmill stress testing from the Henry Ford ExercIse Testing (FIT) Project...
November 2016: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/28451451/abnormal-haemodynamic-postural-response-in-patients-with-chronic-heart-failure
#15
Anne-Sophie G T Bronzwaer, Lysander W J Bogert, Berend E Westerhof, Jan J Piek, Mat J A P Daemen, Johannes J van Lieshout
AIM: The objective was to evaluate in treated heart failure (HF) patients whether multidrug therapy interferes with the cardiovascular autonomic response to postural stress. METHODS AND RESULTS: Blood pressure (BP; Finapres), heart rate (HR), stroke volume, and total peripheral resistance (TPR) responses to standing up were measured in 33 HF patients and 10 healthy age-matched controls. Ten hypertensive (HT) patients treated with a similar combination of drugs but without heart failure served as reference subjects to account for use of medication...
May 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28440910/subacute-pyridostigmine-exposure-increases-heart-rate-recovery-and-cardiac-parasympathetic-tone-in-rats
#16
Manushree Bharadwaj, Carey Pope, Michael Davis, Stuart Katz, Christian Cook, Lara Maxwell
Heart rate recovery (HRR) describes the rapid deceleration of heart rate after strenuous exercise and is an indicator of parasympathetic tone. A reduction in parasympathetic tone occurs in patients with congestive heart failure, resulting in prolonged HRR. Acetylcholinesterase inhibitors, such as pyridostigmine, can enhance parasympathetic tone by increasing cholinergic input to the heart. The objective of this study was to develop a rodent model of HRR to test the hypothesis that subacute pyridostigmine administration decreases cholinesterase activity and accelerates HRR in rats...
April 25, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28426808/a-screen-for-protective-drugs-against-delayed-hypoxic-injury
#17
Chun-Ling Sun, Huiliang Zhang, Meng Liu, Wang Wang, C Michael Crowder
Despite longstanding efforts to develop cytoprotective drugs against ischemia/reperfusion (IR) injuries, there remains no effective therapeutics to treat hypoxic injury. The failure of traditional strategies at solving this problem suggests the need for novel and unbiased approaches that can lead to previously unsuspected targets and lead compounds. Towards this end, we report here a unique small molecule screen in the nematode C. elegans for compounds that improve recovery when applied after the hypoxic insult, using a C...
2017: PloS One
https://www.readbyqxmd.com/read/28424575/contribution-of-autonomic-reflexes-to-the-hyperadrenergic-state-in-heart-failure
#18
REVIEW
Edgar Toschi-Dias, Maria Urbana P B Rondon, Chiara Cogliati, Nazareno Paolocci, Eleonora Tobaldini, Nicola Montano
Heart failure (HF) is a complex syndrome representing the clinical endpoint of many cardiovascular diseases of different etiology. Given its prevalence, incidence and social impact, a better understanding of HF pathophysiology is paramount to implement more effective anti-HF therapies. Based on left ventricle (LV) performance, HF is currently classified as follows: (1) with reduced ejection fraction (HFrEF); (2) with mid-range EF (HFmrEF); and (3) with preserved EF (HFpEF). A central tenet of HFrEF pathophysiology is adrenergic hyperactivity, featuring increased sympathetic nerve discharge and a progressive loss of rhythmical sympathetic oscillations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28418441/an-integrated-anti-arrhythmic-target-network-of-a-chinese-medicine-compound-wenxin-keli-revealed-by-combined-machine-learning-and-molecular-pathway-analysis
#19
Taiyi Wang, Ming Lu, Qunqun Du, Xi Yao, Peng Zhang, Xiaonan Chen, Weiwei Xie, Zheng Li, Yuling Ma, Yan Zhu
Wenxin Keli (WK), a Chinese patent medicine, is known to be effective against cardiac arrhythmias and heart failure. Although a number of electrophysiological findings regarding its therapeutic effect have been reported, the active components and system-level characterizations of the component-target interactions of WK have yet to be elucidated. In the current study, we present the first report of a new protective effect of WK on suppressing anti-arrhythmic-agent-induced arrhythmias. In a model of isolated guinea pig hearts, rapid perfusion of quinidine altered the heart rate and prolonged the Q-T interval...
May 2, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28408306/heart-failure-and-thermoregulatory-control-can-patients-with-heart-failure-handle-the-heat
#20
REVIEW
Bryce N Balmain, Surendran Sabapathy, Ollie Jay, Julie Adsett, Glenn M Stewart, Rohan Jayasinghe, Norman R Morris
Upon heat exposure, the thermoregulatory system evokes reflex increases in sweating and skin blood flow responses to facilitate heat dissipation and maintain heat balance to prevent the continuing rise in core temperature. These heat dissipating responses are mediated primarily by autonomic and cardiovascular adjustments; which if attenuated, may compromise thermoregulatory control. In patients with heart failure (HF), the neurohumoral and cardiovascular dysfunction that underpins this condition may potentially impair thermoregulatory responses and, consequently, place these patients at a greater risk of heat-related illness...
April 10, 2017: Journal of Cardiac Failure
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