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https://www.readbyqxmd.com/read/29035941/arterial-stiffness-and-cardiometabolic-phenotype-of-cameroonian-pygmies-and-bantus
#1
William Ngatchou, Daniel Lemogoum, Christian Mélot, Virginie Guimfacq, Philippe van de Borne, Jean Claude Wautrecht, Michel P Hermans, Luc Van Bortel, Marc Leeman
BACKGROUND: Pygmies living in the Central African rainforest with a traditional hunter-gatherer lifestyle have a low incidence of cardiovascular diseases. Because of progressive loss of traditional habitat and ancestral lands, some Pygmies have migrated to urban areas and adopt specific Bantu lifestyles such as increased salt consumption and a sedentary way of life. We tested the hypothesis that migrant Pygmies could present with hemodynamic and metabolic characteristics different from those of traditional in-situ Pygmies and possibly closer to those of Bantu farmers...
October 13, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/29035889/inhibition-of-suicidal-erythrocyte-death-by-volasertib
#2
Abdulla Al Mamun Bhuyan, A K M Ashiqul Haque, Itishri Sahu, Hang Cao, Michael S D Kormann, Florian Lang
BACKGROUND/AIMS: The Polo-like kinase 1 (Plk1) inhibitor volasertib is used in the treatment of malignancy. Volasertib is partially effective by triggering suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal cell death or eryptosis, which is characterized by cell membrane scrambling with phosphatidylserine translocation to the cell surface and by cell shrinkage. Stimulators of eryptosis include energy depletion, hyperosmotic shock, oxidative stress and excessive increase of cytosolic Ca2+ activity ([Ca2+]i)...
October 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29035710/blunted-basal-corticosterone-pulsatility-predicts-post-exposure-susceptibility-to-ptsd-phenotype-in-rats
#3
Dor Danan, Michael A Matar, Zeev Kaplan, Joseph Zohar, Hagit Cohen
The basal activity of the hypothalamic-pituitary-adrenal axis is highly dynamic and is characterized by both circadian and ultradian (pulsatile) patterns of hormone secretion. Pulsatility of glucocorticoids has been determined to be critical for optimal transcriptional, neuroendocrine, and behavioral responses. We used an animal model of post-traumatic stress disorder (PTSD) to assess whether stress-induced impairment of behavioral responses is correlated with aberrant secretion of corticosterone. Serial blood samples were collected manually via the jugular vein cannula during the light-(inactive)-phase in conscious male rats at 20-min intervals for a period of 5h before and 6...
October 7, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29035158/humanizing-folk-devils-using-ethnography
#4
Peter L Myers
The sociological concepts of the "moral panic" and the deviant "folk devil" apply to the drug panics in the United States over methamphetamine, heroin, and crack cocaine. Mothers or pregnant women who smoke crack cocaine, and their babies, are assigned exaggerated "demonic" attributes that result in stigma and societal rejection. Otherwise, ethnographic studies of drug users demonstrate realities that are other than what might be considered were one to merely look at their use and the consequences. These considerations are examined with respect to the image of folk devils, methadone program attendees, smokers of "blunts," opium den habitués, and others grouped together as negative influences as a result of their drug habits...
October 16, 2017: Journal of Ethnicity in Substance Abuse
https://www.readbyqxmd.com/read/29035085/lung-microbiota-is-related-to-smoking-status-and-to-development-of-ards-in-critically-ill-trauma-patients
#5
Ariane R Panzer, Susan V Lynch, Chaz Langelier, Jason D Christie, Kathryn McCauley, Mary Nelson, Christopher K Cheung, Neal L Benowitz, Mitchell J Cohen, Carolyn S Calfee
RATIONALE: Cigarette smoking is associated with increased risk of acute respiratory distress syndrome (ARDS) in patients following severe trauma; however, mechanisms underlying this association are unknown. OBJECTIVES: To determine whether cigarette smoking contributes to ARDS development following trauma by altering community composition of the lung microbiota Methods: We studied lung microbiota of mechanically ventilated patients admitted to the intensive care unit (ICU) following severe blunt trauma using 16S rRNA gene amplicon sequencing of endotracheal aspirate (ETA) samples obtained upon ICU admission (n=74) and at 48 hours post-admission (n=30)...
October 16, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29034923/supramolecular-systems-at-liquid-solid-interfaces-general-discussion
#6
David Amabilino, Ioan Bâldea, Pol Besenius, Peter Beton, Matthew Blunt, Manfred Buck, Neil R Champness, Lifeng Chi, Stuart Clarke, Giovanni Costantini, Steven De Feyter, Yuri Diaz Fernandez, Deepak Dwivedi, Karl-Heinz Ernst, Amar Flood, Brandon Hirsch, Robert Jones, Angelika Kühnle, Markus Lackinger, Trolle R Linderoth, Natalia Martsinovich, Andrew Mount, Martin Nalbach, Claire-Marie Pradier, Talat Rahman, Rasmita Raval, Neil Robinson, Marco Sacchi, Sebastian Schwaminger, Steven L Tait, Phil Woodruff, Han Zuilhof
No abstract text is available yet for this article.
October 16, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/29034583/the-effect-of-head-up-tilt-upon-markers-of-heart-rate-variability-in-patients-with-atrial-fibrillation
#7
Hitesh C Patel, Carl Hayward, Andrew J Wardle, Lee Middleton, Alexander R Lyon, Carlo Di Mario, Tushar V Salukhe, Richard Sutton, Stuart D Rosen
BACKGROUND: Heart rate variability (HRV) analysis is uncommonly undertaken in patients with atrial fibrillation (AF) due to an assumption that ventricular response is random. We sought to determine the effects of head-up tilt (HUT), a stimulus known to elicit an autonomic response, on HRV in patients with AF; we contrasted the findings with those of patients in sinus rhythm (SR). METHODS: Consecutive, clinically indicated tilt tests were examined for 207 patients: 176 in SR, 31 in AF...
October 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29034524/carotid-chemoreceptor-control-of-muscle-sympathetic-nerve-activity-in-hypobaric-hypoxia
#8
James P Fisher, Daniela Flück, Matthias P Hilty, Carsten Lundby
High altitude hypoxia causes pronounced sympathoexcitation but the underlying mechanisms remain unclear. We tested the hypothesis that intravenous infusion of dopamine to attenuate carotid chemoreceptor responsiveness would reduce muscle sympathetic nerve activity (MSNA) at high altitude. Nine healthy individuals (mean [SD]; 26 [4] yr) were studied at sea level (SL, Zurich) and at high altitude (ALT, 3454 m, 15-17 days after arrival), both while breathing the ambient air and during an acute incremental hypoxia test (8 × 3 min stages, PET O2 90-45 mmHg)...
October 15, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29034474/altered-nmda-receptor-evoked-intracellular-ca-2-dynamics-in-magnocellular-neurosecretory-neurons-of-hypertensive-rats
#9
Meng Zhang, Javier E Stern
A growing body of evidence supports an elevated NMDA receptor-mediated glutamate excitatory function in the SON and PVN of hypertensive rats that contributes to neurohumoral activation in this disease. Still, the precise mechanisms underlying altered NMDAR signalling in hypertension remains to be elucidated. In this study, we performed simultaneous electrophysiology and fast confocal Ca(2+) imaging to determine whether an altered NMDAR-mediated changes in intracellular Ca(2+) levels (NMDAR-ΔCa(2+) ) occurred in hypothalamic magnocellular neurosecretory cells (MNCs) in renovascular hypertensive (RVH) rats...
October 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29034244/contemporary-strategies-in-the-management-of-civilian-neck-zone-ii-vascular-trauma
#10
REVIEW
Georgios Karaolanis, Konstantinos Maltezos, Chris Bakoyiannis, Sotiris Georgopoulos
Neck trauma is the leading cause of death mainly in younger persons posing to surgeons the dilemma whether to proceed with reconstruction of vascular injuries either in the presence of coma or in severe neurological deficit. Vascular injuries in zone II predominate over the other injuries located in zones I/III of the neck. Conventional open repair of carotid injuries with primary closure or interposition grafting is always recommended due to the effective long-term results for penetrating injuries or for patients unfit for endovascular intervention...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/29033294/acetaminophen-or-nonsteroidal-anti-inflammatory-drugs-in-acute-musculoskeletal-trauma-a%C3%A2-multicenter-double-blind-randomized-clinical-trial
#11
Milan L Ridderikhof, Philipp Lirk, Helma Goddijn, Edwin Vandewalle, Erik Schinkel, Susan Van Dieren, E Marleen Kemper, Markus W Hollmann, J Carel Goslings
STUDY OBJECTIVE: We determine whether pain treatment with acetaminophen was not inferior to nonsteroidal anti-inflammatory drugs or the combination of both in minor musculoskeletal trauma. METHODS: The Paracetamol or NSAIDs in Acute Musculoskeletal Trauma Study was a double-blind, randomized, clinical trial conducted in 2 general practices and 2 emergency departments in the Netherlands. A total of 547 adults, aged 18 years and older, with acute blunt minor musculoskeletal extremity trauma were randomly assigned in a 1:1:1 ratio to acetaminophen 4,000 mg/day, diclofenac 150 mg/day, or acetaminophen 4,000 mg/day+diclofenac 150 mg/day during 3 consecutive days...
October 13, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29033151/is-it-adequate-to-carry-out-a-chest-ct-in-patients-with-mild-moderate-chest-trauma
#12
V García de Pereda de Blas, M Carreras Aja, S Carbajo Azabal, E Arana-Arri
Mild-moderate blunt chest trauma is defined as a blunt chest trauma that is not caused by a high-energy mechanism, causing thoracic tenderness with or without rib fractures and that has no immediate life-threatening consequences for the patient. It is a frequent clinical situation in the emergency department. The most common radiological techniques that are used in this context are chest X-ray and thoracic computed tomography (CT). The CT scan is set as the gold standard. However, there are no current clinical-radiological guidelines that establish the adequacy of the requests of the CT scan...
October 12, 2017: Radiología
https://www.readbyqxmd.com/read/29033079/polytrauma-patients-in-the-netherlands-and-the-usa-a-bi-institutional-comparison-of-processes-and-outcomes-of-care
#13
Suzan Dijkink, Gwendolyn M van der Wilden, Pieta Krijnen, Lisa Dol, Steven Rhemrev, David R King, Marc A DeMoya, George C Velmahos, Inger B Schipper
BACKGROUND: Modern trauma systems differ worldwide, possibly leading to disparities in outcomes. We aim to compare characteristics and outcomes of blunt polytrauma patients admitted to two Level 1 Trauma Centers in the US (USTC) and the Netherlands (NTC). METHODS: For this retrospective study the records of 1367 adult blunt trauma patients with an Injury Severity Score (ISS) ≥ 16 admitted between July 1, 2011 and December 31, 2013 (640 from NTC, 727 from USTC) were analysed...
October 10, 2017: Injury
https://www.readbyqxmd.com/read/29032876/clinical-value-of-triage-lactate-in-risk-stratifying-trauma-patients-using-interval-likelihood-ratios
#14
Bonny J Baron, Andrew Nguyen, Dimitre Stefanov, Amit Shetty, Shahriar Zehtabchi
Emergency physicians face the challenge of rapidly identifying high-risk trauma patients. Lactate (LAC) is widely used as a surrogate of tissue hypoperfusion. However, clinically important values for LAC as a predictor of mortality are not well defined. OBJECTIVES: 1. To assess the value of triage LAC in predicting mortality after trauma. 2. To compute interval likelihood ratios (LR) for LAC. METHODS: Retrospective chart review of trauma patients with a significant injury mechanism that warranted labs at an urban trauma center...
October 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29032326/production-of-hybrid-macro-micro-nano-surface-structures-on-ti6al4v-surfaces-by-picosecond-laser-surface-texturing-and-their-antifouling-characteristics
#15
Fatema H Rajab, Christopher M Liauw, Paul S Benson, Lin Li, Kathryn A Whitehead
The development of surfaces which reduce biofouling has attracted much interest in practical applications. Three picosecond laser generated surface topographies (Ti1, Ti2, Ti3) on titanium were produced, treated with fluoroalkylsilane (FAS), then characterised using Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX), Raman Spectroscopy, Fourier Transform Infra-Red (FTIR) spectroscopy, contact angle measurements and white light interference microscopy. The surfaces had a range of different macro/micro/nano topographies...
October 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29032236/renal-trauma-in-pediatrics-a-current-review
#16
REVIEW
Maria Fernandez-Ibieta
Children are at increased risk of renal injuries from blunt trauma. Four phase CT with intravenous contrast (non contrast, arterial, nephrographic, and pyelographic phases) is the choice for initial imaging, although ultrasonography might be used in the children with minimal symptoms. The American Association for the Surgery of Trauma developed the known system for renal injury grading, which was modified in 2011. The management of pediatric renal injuries has largely shifted towards conservative means. But as long as the child remains hemodynamically unstable, renal exploration might be necessary...
October 12, 2017: Urology
https://www.readbyqxmd.com/read/29031727/angiopoietin-like-protein-4-is-an-exercise-induced-hepatokine-in-humans-regulated-by-glucagon-and-camp
#17
Bodil Ingerslev, Jakob S Hansen, Christoph Hoffmann, Jens O Clemmesen, Niels H Secher, Mika Scheler, Martin Hrabĕ de Angelis, Hans U Häring, Bente K Pedersen, Cora Weigert, Peter Plomgaard
OBJECTIVE: Angiopoietin-like protein-4 (ANGPTL4) is a circulating protein that is highly expressed in liver and implicated in regulation of plasma triglyceride levels. Systemic ANGPTL4 increases during prolonged fasting and is suggested to be secreted from skeletal muscle following exercise. METHODS: We investigated the origin of exercise-induced ANGPTL4 in humans by measuring the arterial-to-venous difference over the leg and the hepato-splanchnic bed during an acute bout of exercise...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29031158/a-potential-contribution-to-human-identification-using-peri-mortem-trauma-an-example-from-peru
#18
Jose P Baraybar
This is an exploratory study into the need for additional lines of forensic evidence in humanitarian cases using applied research. One hundred and twenty four, still unidentified terrorism inmates, were killed after surrendering to the Peruvian Army once it took control of the San Pedro-Lurigancho prison in Lima, Peru in 1986. Two questions are put forward: first, to what extent mechanism of injury (gunshot, blunt, sharp force) and bodily distribution of those injuries allow us to classify individuals into discrete sub-groups of people? The second question is to what respect can such a classification become an additional line of evidence assisting in generating hypotheses of identity regarding those individuals? The analysis of the 109 recovered bodies and their associated evidence show a sub group of four individuals differentiated from the rest based on the combination of injuries (gunshot and blunt force trauma), opposing trajectories and weapons...
September 21, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29030905/comparing-the-effects-of-age-pubertal-development-and-symptom-profile-on-cortisol-rhythm-in-children-and-adolescents-with-autism-spectrum-disorder
#19
Rachael A Muscatello, Blythe A Corbett
Previous studies in children with autism spectrum disorder (ASD) have shown elevated evening cortisol; however, few studies have examined diurnal rhythm in adolescents with ASD. Adolescence is a time of significant physical and psychological change, and dysregulation of the hypothalamic-pituitary-adrenal axis may put adolescents with ASD at increased risk for internalizing disorders, such as anxiety and depression. The extent to which cortisol levels are associated with age, puberty and symptom profile was examined in 113 youth (ages 7-17) with ASD and typical development...
October 14, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29030343/carbohydrate-restriction-with-postmeal-walking-effectively-mitigates-postprandial-hyperglycemia-and-improves-endothelial-function-in-type-2-diabetes
#20
Monique Emily Francois, Etienne Myette-Cote, Tyler Daniel Bammert, Cody Durrer, Helena Neudorf, Christopher A DeSouza, Jonathan Peter Little
Postprandial hyperglycemia has deleterious effects on endothelial function. Restricting carbohydrate intake and postmeal walking have each been shown to reduce postprandial hyperglycemia but their combination and subsequent effects on endothelial function have not been investigated. Here, we sought to examine the effect of blunting postprandial hyperglycemia by following a low-carbohydrate diet, with or without postmeal walking exercise, on markers of vascular health in type 2 diabetes (T2D). In a randomized crossover design, individuals with T2D (N=11) completed three four-day controlled diet interventions consisting of i) low-carbohydrate diet alone (LC), ii) low-carbohydrate diet with 15-minute postmeal walks (LC+Ex), and iii) Low-fat control diet (CON)...
October 13, 2017: American Journal of Physiology. Heart and Circulatory Physiology
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