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Yimy Amarillo, Angela Isabel Tissone, German Mato, Marcela S Nadal
Slow repetitive burst firing by hyperpolarized thalamocortical (TC) neurons correlates with global slow rhythms (< 4 Hz), which are the physiological oscillations during N-REM sleep, or pathological ones during idiopathic epilepsy. The pacemaker activity of TC neurons depends on the expression of several subthreshold conductances, which are modulated in a behaviorally dependent manner. Here we show that up-regulation of the small and neglected inward rectifier potassium current IKir induces repetitive burst firing at slow and delta frequency bands...
March 21, 2018: Journal of Neurophysiology
Alejandro Cabrera-García, Elisa Checa-Chavarria, Jesús Pacheco-Torres, Ángela Bernabeu-Sanz, Alejandro Vidal-Moya, Eva Rivero-Buceta, Germán Sastre, Eduardo Fernández, Pablo Botella
The development of contrast agents (CAs) for Magnetic Resonance Imaging (MRI) with T1-T2 dual-mode relaxivity requires the accurate assembly of T1 and T2 magnetic centers in a single structure. In this context, we have synthesized a novel hybrid material by monitoring the formation of Prussian Blue analogue Gd(H2O)4[Fe(CN)6] nanoparticles with tailored shape (from nanocrosses to nanorods) and size, and further protection with a thin and homogeneous silica coating through hydrolysis and polymerization of silicate at neutral pH...
March 21, 2018: Nanoscale
Sarah Ziegler, Margareta Schmid, Matthias Bopp, Georg Bosshard, Milo Alan Puhan
BACKGROUND: In the last decade, the number of patients continuously deeply sedated until death increased up to fourfold. The reasons for this increase remain unclear. OBJECTIVE: To identify socio-demographic and clinical characteristics of sedated patients, and concurrent possibly life-shortening medical end-of-life decisions. DESIGN: Cross-sectional death certificate study in German-speaking Switzerland in 2001 and 2013. PARTICIPANTS: Non-sudden and expected deaths (2001: N = 2281, 2013: N = 2256) based on a random sample of death certificates and followed by an anonymous survey on end-of-life practices among attending physicians...
March 20, 2018: Journal of General Internal Medicine
Martin Klietz, Amelie Tulke, Lars H Müschen, Lejla Paracka, Christoph Schrader, Dirk W Dressler, Florian Wegner
Background: Parkinson's disease (PD) is the second most frequent neurodegenerative disease of the elderly. Patients suffer from various motor and non-motor symptoms leading to reduced health-related quality of life (HRQOL) and an increased mortality. Their loss of autonomy due to dementia, psychosis, depression, motor impairments, falls, and swallowing deficits defines a phase when palliative care interventions might help to sustain or even improve quality of life. Objective: The aim of this study was to investigate the current status of palliative care implementation and quality of life in a local cohort of advanced PD patients in order to frame and improve future care...
2018: Frontiers in Neurology
Cristian R Astorga, Alejandro González-Candia, Alejandro A Candia, Esteban G Figueroa, Daniel Cañas, Germán Ebensperger, Roberto V Reyes, Aníbal J Llanos, Emilio A Herrera
Background: Chronic hypoxia and oxidative stress during gestation lead to pulmonary hypertension of the neonate (PHN), a condition characterized by abnormal pulmonary arterial reactivity and remodeling. Melatonin has strong antioxidant properties and improves pulmonary vascular function. Here, we aimed to study the effects of melatonin on the function and structure of pulmonary arteries from PHN lambs. Methods: Twelve lambs ( Ovis aries ) gestated and born at highlands (3,600 m) were instrumented with systemic and pulmonary catheters...
2018: Frontiers in Physiology
Agnes Bosch, Johannes B Scheppach, Joanna M Harazny, Ulrike Raff, Kai-Uwe Eckardt, Roland E Schmieder, Markus P Schneider
RATIONALE: Premature cardiovascular disease is a leading cause of death in patients with chronic kidney disease (CKD). In animal models CKD has been shown to cause renal and extrarenal vascular remodeling and capillary rarefaction, but data in humans with CKD are sparse. Retinal arteriolar wall-to-lumen ratio (WLR) is an established marker of early end-organ damage and there is evidence that arteriolar and capillary changes in the retinal circulation mirror those in the general and in particular the cerebrovascular microcirculation...
March 17, 2018: Microvascular Research
Alvaro Proaño, David Bui, José W López, Nancy M Vu, Marjory A Bravard, Gwenyth O Lee, Brian H Tracey, Ziyue Xu, Germán Comina, Eduardo Ticona, Daniel J Mollura, Jon S Friedland, David A J Moore, Carlton A Evans, Philip Caligiuri, Robert H Gilman
BACKGROUND: Cough frequency, and its duration, is a lab-free biomarker that can be used in low-resource settings and has been associated with transmission and treatment response. Radiological characteristics associated with increased cough frequency may be important in understanding transmission. The relationship between cough frequency and cavitary lung disease has never been studied. METHODS: We analyzed 41 human immunodeficiency virus-negative adults with culture-confirmed, drug-susceptible pulmonary tuberculosis throughout treatment...
March 17, 2018: Chest
Manuela Schnyder, Hubertus Hertzberg, Alexander Mathis, Marietta Schönmann, Adrian Hehl, Peter Deplazes
Pursuant to the Joint Declaration by 29 European education ministers in June 1999 in the city of Bologna, Italy, the so-called 'Bologna Process' was officially introduced at the Vetsuisse Faculty (Universities of Zurich and Berne) in Switzerland in 2007. The long-term goal of restructuring the study programmes was to create a common European Higher Education Area (EHEA), with uniform and clearly defined standards for degrees ("diplomas"). Accordingly, the Vetsuisse curriculum was organised as a 3-year Bachelor and a 2-year Master study program...
March 15, 2018: Veterinary Parasitology
Jerzy Wordliczek, Joanna Jakowicka-Wordliczek, Renata Zajaczkowska
Professor Henryk Hilarowicz was a Polish surgeon who first described the technique of brachial plexus block performed in the interscalene groove between the anterior and middle scalene muscles. The article devoted to the technique appeared in the German-language journal Zentralblatt für Chirurgie in 1925, 45 years before Alon Winnie, who is widely regarded as the originator of this method, published his paper in Anesthesia & Analgesia in 1970.
January 2018: Journal of Anesthesia History
Stefan J Teipel, Thomas Fritze, Martin Ellenrieder, Britta Haenisch, Wolfram Mittelmeier, Gabriele Doblhammer
BACKGROUND: Cognitive decline is an important complication of joint replacement surgeries in senior people. METHODS: We determined incidence rates of dementia diagnosis following endoprosthetic joint replacement surgery (upper and lower extremities). The observation period covered up to 28 quarters using German claims data comprising 154,604 cases 65 years and older. Effects were controlled for cerebrovascular and vascular risk factors, age, sex, the presence of a diagnosis of delirium, and regular prescription of sedative or analgesic drugs (SAD)...
March 21, 2018: International Psychogeriatrics
Daniel Schwarzkopf, Carolin Fleischmann-Struzek, Hendrik Rüddel, Konrad Reinhart, Daniel O Thomas-Rüddel
BACKGROUND: Sepsis is a major cause of preventable deaths in hospitals. Feasible and valid methods for comparing quality of sepsis care between hospitals are needed. The aim of this study was to develop a risk-adjustment model suitable for comparing sepsis-related mortality between German hospitals. METHODS: We developed a risk-model using national German claims data. Since these data are available with a time-lag of 1.5 years only, the stability of the model across time was investigated...
2018: PloS One
Anna E Kågesten, Caroline W Kabiru, Beatrice Maina, Danielle German, Robert Wm Blum
The need for early prevention approaches to improve young people's sexual and reproductive health is gaining attention, yet little is known about the sexual experiences of early adolescents aged 10-14 years. Drawing on cross-sectional survey data collected from 365 early adolescents in a Nairobi slum, we used latent class analysis to identify subgroups based on self-reported awareness about sex and involvement in romantic and sexual activities. Multivariate regression models were fitted to examine the characteristics of each subgroup...
March 20, 2018: Culture, Health & Sexuality
Pedro Taffarel, German Bonetto, Facundo Jorro Barón, Claudia Meregalli
INTRODUCTION: Children in pediatric intensive care units (PICUs) are exposed to experiencing pain, stress and anxiety due to their disease, treatment or care setting. Adequate sedation and analgesia are key to their care, particularly in patients requiring mechanical ventilation (MV). OBJECTIVE: To determine the usual practice in sedation and analgesia management in patients requiring MV in PICUs in Argentina. MATERIAL AND METHODS: Descriptive, crosssectional, multi-center study conducted by means of e-mailed surveys...
April 1, 2018: Archivos Argentinos de Pediatría
C Herrmann-Lingen
BACKGROUND: Depression is a frequent comorbidity in chronic heart failure. It can be triggered by the experience of suffering from heart disease, but it can also play a causal role in accelerated development and poor prognosis of heart failure. OBJECTIVES: The aim of this study was to investigate the interrelationships between heart failure and depression and the psychophysiological and behavioral mechanisms involved in this association. The effects of comorbid depression on quality of life in patients with heart failure were also examined and therapeutic options reviewed...
March 20, 2018: Der Internist
Klaus Schepker, Thomas Beddies
Hans Heinze and the Research Programme of the German Association of Child Psychiatry and Therapeutic Education 1942-1945 Upon its foundation in 1940, Paul Schröder, full professor for psychiatry in Leipzig, was the first president of the German Society for Child Psychiatry and Therapeutic Education (DGKH). Following his death in 1941, his student Hans Heinze (Brandenburg/H.) succeeded him, prevailing over Werner Villinger (Breslau). The principal task of the DGKH was considered to be the exploration of the genetic origins of intellectual disabilities and behavioural disorders among children and adolescents...
September 2017: Praxis der Kinderpsychologie und Kinderpsychiatrie
Patrick Mouret, Reinhold Kreutz, Katrin Deilmann, Ariane Dihlmann, Gerlind Holberg, Sylvia Haas
BACKGROUND: In global admission studies (RECORD I-IV) Rivaroxaban and enoxaparin as a standard prophylaxis were comparable in safety of treatment, but rivaroxaban appeared more effective in prevention of venous thromboembolism (VTE) when used in elective hip and knee replacement. The worldwide non-interventional cohort study XAMOS confirmed these results in the clinical routine compared to proven anticoagulants. METHOD: Efficacy and safety of rivaroxaban was to be compared with the standard prophylaxis in the prevention of VTE after elective hip and knee replacement surgery in clinical practice in Germany...
October 2017: MMW Fortschritte der Medizin
Kathrin Thöne, Anja Rudolph, Nadia Obi, Jenny Chang-Claude, Dieter Flesch-Janys
PURPOSE: Recent cohort studies demonstrated better overall survival (OS) or breast cancer-specific survival (BCS) for breast-conserving therapy (BCT) followed by radiation (RT) compared to mastectomy alone (MT). This is the first observational study in which adjustments for a comprehensive set of prognostic factors, adjuvant therapies, mode of detection, and comorbidities were possible to investigate OS, BCS, as well as recurrence risk of patients undergoing BCT + RT, MT + RT, or MT...
March 19, 2018: Breast Cancer Research and Treatment
Michael M Bechtel, Roman Liesch, Kenneth F Scheve
Political polarization and extremism are widely thought to be driven by the surge in economic inequality in many countries around the world. Understanding why inequality persists depends on knowing the causal effect of inequality on individual behavior. We study how inequality affects redistribution behavior in a randomized "give-or-take" experiment that created equality, advantageous inequality, or disadvantageous inequality between two individuals before offering one of them the opportunity to either take from or give to the other...
March 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
Ann-Katrin Meyrose, Fionna Klasen, Christiane Otto, Gabriela Gniewosz, Thomas Lampert, Ulrike Ravens-Sieberer
RATIONALE: Mental health problems in children and adolescents are widespread and are a primary public health concern worldwide. During childhood and adolescence different challenges must be met. Whether the corresponding developmental tasks can be mastered successfully and in a psychologically healthy manner depends on the availability of resources. OBJECTIVE: The aim of the current study was to examine the benefits of maternal education on the development of mental health in children and adolescents...
February 24, 2018: Social Science & Medicine
Hannah F Löchel, Mona Riemenschneider, Dmitrij Frishman, Dominik Heider
Motivation: The V3 loop of the gp120 glycoprotein of the Human Immunodeficiency Virus 1 (HIV-1) is considered to be responsible for viral coreceptor tropism. gp120 interacts with the CD4 receptor of the host cell and subsequently V3 binds either CCR5 or CXCR4. Due to the fact that the CCR5 coreceptor is targeted by entry inhibitors, a reliable prediction of the coreceptor usage of HIV-1 is of great interest for antiretroviral therapy. Although several methods for the prediction of coreceptor tropism are available, almost all of them have been developed based on only subtype B sequences, and it has been shown in several studies that the prediction of non-B sequences, in particular subtype A sequences, are less reliable...
March 15, 2018: Bioinformatics
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