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https://www.readbyqxmd.com/read/29223064/patient-characteristics-incidence-technique-outcomes-and-early-prediction-of-tracheostomy-in-the-state-of-victoria-australia
#1
Andrew Casamento, Michael Bailey, Ray Robbins, David Pilcher, Stephen Warrillow, Angaj Ghosh, Rinaldo Bellomo
BACKGROUND: Tracheostomy is a relatively common procedure in Intensive Care Unit (ICU) patients. AIMS: To study the patient characteristics, incidence, technique, outcomes and prediction of tracheostomy in the State of Victoria, Australia. METHODS: We used data from the Australian and New Zealand Intensive Care Society Adult Patient Database (ANZICS APD) and the Victorian Admitted Episode Dataset (VAED) to identify and match patients who had received a tracheostomy from 2004 to 2014...
December 1, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29222959/development-of-depth-encoding-small-animal-pet-detectors-by-using-dual-ended-readout-of-pixelated-scintillator-arrays-with-sipms
#2
Zhonghua Kuang, Ziru Sang, Xiaohui Wang, Xin Fu, Ning Ren, Xianming Zhang, Yunfei Zheng, Qian Yang, Zhanli Hu, Junwei Du, Dong Liang, Xin Liu, Hairong Zheng, Yongfeng Yang
PURPOSE: The performance of current small animal PET scanners is mainly limited by the detector performance and depth encoding detectors are required to develop PET scanner to simultaneously achieve high spatial resolution and high sensitivity. Among all depth encoding PET detector approaches, dual-ended readout detector has the advantage to achieve the highest depth of interaction (DOI) resolution and spatial resolution. Silicon photomultiplier (SiPM) is believed to be the photodetector of the future for PET detector due to its excellent properties as compared to the traditional photodetectors such as photomultiplier tube (PMT) and avalanche photodiode (APD)...
December 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/29221068/breakdown-flash-at-telecom-wavelengths-in-ingaas-avalanche-photodiodes
#3
Yicheng Shi, Janet Zheng Jie Lim, Hou Shun Poh, Peng Kian Tan, Peiyu Amelia Tan, Alexander Ling, Christian Kurtsiefer
Quantum key distribution (QKD) at telecom wavelengths (1260 - 1625 nm) has the potential for fast deployment due to existing optical fibre infrastructure and mature telecom technologies. At these wavelengths, Indium Gallium Arsenide (InGaAs) avalanche photodiode (APD) based detectors are the preferred choice for photon detection. Similar to their Silicon counterparts used at shorter wavelengths, they exhibit fluorescence from recombination of electron-hole pairs generated in the avalanche breakdown process...
November 27, 2017: Optics Express
https://www.readbyqxmd.com/read/29218016/synergistic-anti-arrhythmic-effects-in-human-atria-with-combined-use-of-sodium-blockers-and-acacetin
#4
Haibo Ni, Dominic G Whittaker, Wei Wang, Wayne R Giles, Sanjiv M Narayan, Henggui Zhang
Atrial fibrillation (AF) is the most common cardiac arrhythmia. Developing effective and safe anti-AF drugs remains an unmet challenge. Simultaneous block of both atrial-specific ultra-rapid delayed rectifier potassium (K+) current (IKur) and the Na+ current (INa) has been hypothesized to be anti-AF, without inducing significant QT prolongation and ventricular side effects. However, the antiarrhythmic advantage of simultaneously blocking these two channels vs. individual block in the setting of AF-induced electrical remodeling remains to be documented...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29217372/acute-peritoneal-dialysis-in-neonatal-intensive-care-unit-an-8-year-experience-of-a-referral-hospital
#5
Aslihan Kara, Metin Kaya Gurgoze, Mustafa Aydin, Erdal Taskin, Unal Bakal, Aysen Orman
BACKGROUND: The aim of present study was to evaluate the indications, complications and outcomes of acute peritoneal dialysis (APD) in neonates at a referral university hospital during the previous 8 years. METHODS: This retrospective analysis included a total of 52 newborn infants who underwent APD in a neonatal intensive care unit between January 2008 and March 2016. Demographic, clinical, laboratory and microbiological data were extracted from patients' medical files...
November 16, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29213224/pro-arrhythmogenic-effects-of-the-v141m-kcnq1-mutation-in-short-qt-syndrome-and-its-potential-therapeutic-targets-insights-from-modeling
#6
Hsiang-Chun Lee, Yoram Rudy, Hongwu Liang, Chih-Chieh Chen, Ching-Hsing Luo, Sheng-Hsiung Sheu, Jianmin Cui
Gain-of-function mutations in the pore-forming subunit of IKs channels, KCNQ1, lead to short QT syndrome (SQTS) and lethal arrhythmias. However, how mutant IKs channels cause SQTS and the possibility of IKs-specific pharmacological treatment remain unclear. V141M KCNQ1 is a SQTS associated mutation. We studied its effect on IKs gating properties and changes in the action potentials (AP) of human ventricular myocytes. Xenopus oocytes were used to study the gating mechanisms of expressed V141M KCNQ1/KCNE1 channels...
October 2017: Journal of Medical and Biological Engineering
https://www.readbyqxmd.com/read/29209272/a-european-perspective-on-auditory-processing-disorder-current-knowledge-and-future-research-focus
#7
Vasiliki Vivian Iliadou, Martin Ptok, Helen Grech, Ellen Raben Pedersen, André Brechmann, Naïma Deggouj, Christiane Kiese-Himmel, Mariola Śliwińska-Kowalska, Andreas Nickisch, Laurent Demanez, Evelyne Veuillet, Hung Thai-Van, Tony Sirimanna, Marina Callimachou, Rosamaria Santarelli, Sandra Kuske, Jose Barajas, Mladen Hedjever, Ozlem Konukseven, Dorothy Veraguth, Tone Stokkereit Mattsson, Jorge Humberto Martins, Doris-Eva Bamiou
Current notions of "hearing impairment," as reflected in clinical audiological practice, do not acknowledge the needs of individuals who have normal hearing pure tone sensitivity but who experience auditory processing difficulties in everyday life that are indexed by reduced performance in other more sophisticated audiometric tests such as speech audiometry in noise or complex non-speech sound perception. This disorder, defined as "Auditory Processing Disorder" (APD) or "Central Auditory Processing Disorder" is classified in the current tenth version of the International Classification of diseases as H93...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29209160/molecular-mechanisms-of-antipsychotic-drug-induced-diabetes
#8
REVIEW
Jiezhong Chen, Xu-Feng Huang, Renfu Shao, Chen Chen, Chao Deng
Antipsychotic drugs (APDs) are widely prescribed to control various mental disorders. As mental disorders are chronic diseases, these drugs are often used over a life-time. However, APDs can cause serious glucometabolic side-effects including type 2 diabetes and hyperglycaemic emergency, leading to medication non-compliance. At present, there is no effective approach to overcome these side-effects. Understanding the mechanisms for APD-induced diabetes should be helpful in prevention and treatment of these side-effects of APDs and thus improve the clinical outcomes of APDs...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29203336/spontaneous-recovery-of-traumatic-brain-injury-induced-functional-deficits-is-not-hindered-by-daily-administration-of-lorazepam
#9
Jeffrey P Cheng, Jacob B Leary, Darik A O'Neil, Elizabeth A Meyer, Kristin E Free, Corina O Bondi, Anthony E Kline
Agitation and aggression are common sequelae of traumatic brain injury (TBI) and pose a challenge to physicians and other health providers during acute patient care and subsequent neurorehabilitation. Antipsychotic drugs (APDs) are routinely administered to manage TBI patients displaying such maladaptive behaviors despite several clinical and preclinical studies demonstrating that they hinder recovery. A potentially viable alternative to APDs may be the benzodiazepines, which have differing mechanisms of action...
December 1, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29200144/clinical-challenges-identification-of-patients-with-novel-primary-immunodeficiency-syndromes
#10
David Buchbinder, Mikko Seppanen, V Koneti Rao, Gulbu Uzel, Diane Nugent
Novel primary immunodeficiency disorders are being identified with next generation sequencing technologies. We describe 1 patient with cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) haploinsufficiency who had recurrent enhancing brain lesions, nodular pulmonary infiltrates, hepatosplenomegaly, immune cytopenias, as well as progressive hypogammaglobulinemia and lymphopenia. We describe a second patient with activated p110δ syndrome (APDS)/p110δ activating mutation causing senescent T cells, lymphadenopathy, and immunodeficiency (PASLI) in association with recurrent respiratory tract infections, Epstein-Barr virus infection, lymphadenopathy, elevated serum IgM, and progressive lymphopenia...
December 1, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29198999/society-for-fetal-urology-classification-versus-urinary-tract-dilation-grading-systems-for-prognostication-in-prenatal-hydronephrosis-a-time-to-resolution-analysis
#11
Luis H Braga, Melissa McGrath, Forough Farrokhyar, Kizanee Jegatheeswaran, Armando J Lorenzo
PURPOSE: The Urinary Tract Dilation (UTD) grading system for prenatal hydronephrosis (HN) was introduced to address potential shortcomings of the SFU classification. HN resolution is an important patient outcome and frequently discussed during family counselling. Herein we compare these two grading systems and their ability to predict time to HN resolution. MATERIALS AND METHODS: 855 prospectively screened patients between 2009-2015 with prenatal HN due to uretero-pelvic junction-like, primary non-refluxing megaureter or vesico-ureteral reflux; with 454 being excluded due to surgeries, late referrals, absence of postnatal dilation and presence of other anomalies, resulting in 401 eligible patients to be included for analyses...
November 30, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29197109/prospective-test-of-the-developmental-propensity-model-of-antisocial-behavior-from-childhood-and-adolescence-into-early-adulthood
#12
Benjamin B Lahey, Quetzal A Class, David H Zald, Paul J Rathouz, Brooks Applegate, Irwin D Waldman
BACKGROUND: The developmental propensity model of antisocial behavior posits that several dispositional characteristics of children transact with the environment to influence the likelihood of learning antisocial behavior across development. Specifically, greater dispositional negative emotionality, greater daring, and lower prosociality-operationally, the inverse of callousness- and lower cognitive abilities are each predicted to increase risk for developing antisocial behavior. METHODS: Prospective tests of key predictions derived from the model were conducted in a high-risk sample of 499 twins who were assessed on dispositions at 10-17 years of age and assessed for antisocial personality disorder (APD) symptoms at 22-31 years of age...
December 2, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29181850/can-nonclinical-repolarization-assays-predict-the-results-of-clinical-thorough-qt-studies-results-from-a-research-consortium
#13
Eunjung Park, Gary A Gintant, Daoqin Bi, Devi Kozeli, Syril D Pettit, Jennifer B Pierson, Matthew Skinner, James Willard, Todd Wisialowski, John Koerner, Jean-Pierre Valentin
BACKGROUND AND PURPOSE: Translation of nonclinical markers of delayed ventricular repolarization to clinical QTc prolongation (a biomarker for Torsades de Pointes proarrhythmia) remains an issue in drug discovery and regulatory evaluations. A retrospective analysis of 150 submitted drug applications in a US-FDA database was conducted to determine the utility of established nonclinical in vitro iKr current (hERG), action potential duration (APD) and in vivo (QTc) repolarization assays to detect and predict clinical QTc prolongation...
November 27, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29176893/the-fear-of-being-laughed-at-as-additional-diagnostic-criterion-in-social-anxiety-disorder-and-avoidant-personality-disorder
#14
Michael M Havranek, Fleur Volkart, Bianca Bolliger, Sophie Roos, Maximilian Buschner, Ramin Mansour, Thomas Chmielewski, Katharina Gaudlitz, Josef Hättenschwiler, Erich Seifritz, Willibald Ruch
Social anxiety disorder (SAD) is the most common anxiety disorder and has considerable negative impact on social functioning, quality of life, and career progression of those affected. Gelotophobia (the fear of being laughed at) shares many similarities and has therefore been proposed as a subtype of SAD. This hypothesis has, however, never been tested in a clinical sample. Thus, the relationship between gelotophobia, SAD and avoidant personality disorder (APD) was investigated by examining a sample of 133 participants (64 psychiatric patients and 69 healthy controls matched for age and sex) using the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders (4th edition) and an established rating instrument for gelotophobia (GELOPH<15>)...
2017: PloS One
https://www.readbyqxmd.com/read/29176403/tlr4-and-nlrp3-caspase-1-il-1%C3%AE-axis-are-not-involved-in-colon-ascendens-stent-peritonitis-casp-associated-heart-disease
#15
Maria Micaela Lopez Alarcón, Julieta Fernández Ruocco, Fabiano Ferreira, Heitor A Paula-Neto, Marisa Sepúlveda, Martín Vila Petroff, Adriana Bastos Carvalho, Isalira Peroba Ramos, Hugo Justino Branda, Claudia Neto Paiva, Emiliano Medei
Hemodynamic collapse and myocardial dysfunction are among the major causes of death in severe sepsis. The purpose of this study was to assess the role played by TLR4 and by the NLRP3 inflammasome in the cardiac dysfunction that occurs after high-grade polymicrobial sepsis. We performed the colon ascendens stent peritonitis (CASP) surgery in Tlr4, Nlrp3 and caspase-1 mice. We also assessed for the first time the electrical heart function in the CASP model. The QJ interval was increased in wild-type C57BL/6J mice after CASP when compared to sham controls, a result paralleled by an increase in the cardiac action potential duration (APD)...
November 15, 2017: Shock
https://www.readbyqxmd.com/read/29175423/tropisetron-enhances-recognition-memory-in-rats-chronically-treated-with-risperidone-or-quetiapine
#16
Indrani Poddar, Patrick M Callahan, Caterina M Hernandez, Xiangkun Yang, Michael G Bartlett, Alvin V Terry
While impairments of cognition in schizophrenia have the greatest impact on long-term functional outcome, the currently prescribed treatments, antipsychotic drugs (APDs), do not effectively improve cognition. Moreover, while more than 20 years have been devoted to the development of new drugs to treat cognitive deficits in schizophrenia, none have been approved to date. One area that has not been given proper attention at the preclinical or clinical stage of drug development is the chronic medication history of the test subject...
November 23, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29166721/-a-preliminary-study-on-the-relationship-between-idiopathic-arrhythmia-and-cardiac-magnetic-resonance-imaging-defined-cardiac-features-in-patients-with-straight-back-syndrome
#17
L Chen, X H Ma, L Zhao, R Bai, S N Li, L Wang, H Chen, Z M Fan, M W Lou, Y D Niu
Objective: To retrospectively analyze the potential correlation between cardiac magnetic resonance (CMR) imaging and clinical features and idiopathic arrhythmia in patients with straight back syndrome (SBS). Methods: Patients receiving CMR imaging examination from April 2015 to March 2016 at our department (n=1 432) were screened, 76 patients met the diagnosis criteria of flat chest (anteroposterior diameter/transthoracic diameter (APD/TTD) ratio<0.37 at the T8 vertebra). After excluding 33 patients with structural heart disease, 43 SBS patients were divided into two groups: SBS without obvious morphological change in the heart (group A, n=19) and SBS with morphological change of the heart (group B, n=24)...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29164756/survey-of-disability-related-content-in-australian-dietetics-programs
#18
Shannon Butler, Jane Kellett, Rachel Bacon, Annette Byron
AIM: Nutrition and dietetic services are an important component of healthcare for people living with a disability. The introduction of the National Disability Insurance Scheme (NDIS) in Australia is providing more opportunities for individuals to access these services from an Accredited Practising Dietitian (APD). The aim of this research was to identify how students in Australian tertiary dietetics programs are being prepared to provide these services to people with a disability. METHODS: A purpose-built questionnaire with eight open-ended questions was developed by the researchers to describe the disability-related content of university and professional placement learning opportunities and was distributed to all course conveners (or their nominated representative) of dietetics programs accredited by the Dietitians Association of Australia...
November 21, 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/29163220/evaluation-of-optogenetic-electrophysiology-tools-in-human-stem-cell-derived-cardiomyocytes
#19
Susann Björk, Elina A Ojala, Tommy Nordström, Antti Ahola, Mikko Liljeström, Jari Hyttinen, Esko Kankuri, Eero Mervaala
Current cardiac drug safety assessments focus on hERG channel block and QT prolongation for evaluating arrhythmic risks, whereas the optogenetic approach focuses on the action potential (AP) waveform generated by a monolayer of human cardiomyocytes beating synchronously, thus assessing the contribution of several ion channels on the overall drug effect. This novel tool provides arrhythmogenic sensitizing by light-induced pacing in combination with non-invasive, all-optical measurements of cardiomyocyte APs and will improve assessment of drug-induced electrophysiological aberrancies...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29162896/%C3%AE-adrenergic-stimulation-augments-transmural-dispersion-of-repolarization-via-modulation-of-delayed-rectifier-currents-iks-and-ikr-in-the-human-ventricle
#20
C Kang, A Badiceanu, J A Brennan, C Gloschat, Y Qiao, N A Trayanova, I R Efimov
Long QT syndrome (LQTS) is an inherited or drug induced condition associated with delayed repolarization and sudden cardiac death. The cardiac potassium channel, IKr, and the adrenergic-sensitive cardiac potassium current, IKs, are two primary contributors to cardiac repolarization. This study aimed to elucidate the role of β-adrenergic (β-AR) stimulation in mediating the contributions of IKr and IKs to repolarizing the human left ventricle (n = 18). Optical mapping was used to measure action potential durations (APDs) in the presence of the IKs blocker JNJ-303 and the IKr blocker E-4031...
November 21, 2017: Scientific Reports
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