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https://www.readbyqxmd.com/read/28433951/transesophageal-echocardiography-in-the-evaluation-of-the-trauma-patient-a-trauma-resuscitation-transesophageal-echocardiography-exam
#1
REVIEW
Stefan W Leichtle, Andrew Singleton, Mandeep Singh, Matthew J Griffee, Joshua M Tobin
The point-of-care ultrasound exam has become an essential tool for hemodynamic monitoring and resuscitation in the trauma bay as well as the intensive care unit. Transthoracic ultrasound provides a dynamic assessment of cardiac function, volume status, and fluid responsiveness that offers potential advantage over traditional methods of hemodynamic monitoring. More recently, a focused transthoracic echocardiography exam was described to improve immediate resuscitation of severely injured patients in the trauma bay...
April 7, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28433468/environmental-structure-and-energetic-consequences-in-groups-of-young-mice
#2
Delia S Shelton, Paul M Meyer, Karen M Ocasio
Microenvironments can have considerable physiological consequences for the inhabitants by influencing the movements of individual members. The microenvironment can permit more diverse aggregation patterns or restrict movements to certain dimensions. Here, we tested whether aspects of the microenvironment that influenced aggregation patterns also influenced the energetics of groups of young animals. We tested the effects of enclosure configuration on the group temperature and respiration of infant mice (Mus musculus)...
April 19, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28433060/enhanced-photoresponsive-polyethyleneimine-citric-acid-co-carbonized-dots-for-facile-and-selective-sensing-and-intracellular-imaging-of-cobalt-ions-at-physiologic-ph
#3
Wen-Sheng Zou, Qing-Chun Zhao, Jun Zhang, Xiao-Ming Chen, Xiu-Fang Wang, Lin Zhao, Shao-Hua Chen, Ya-Qin Wang
Whether as an important biological element or as a radioactive source/medicine, the monitoring of trace levels of cobalt ions (Co) has become a non-negligible factor for human health and green environment. Current technologies for the detection of Co are cost-expensive and time-consuming, and require cumbersome sample pretreatment process. Herein a novel sensing platform has been developed for Co detection based on the quenching of the enhanced fluorescence signal of polyamine functionalized C-dots. Amine groups at the surface of the C-dots can capture Zn(2+)/Cd(2+) to form coordination compound, which can inhibit the photoinduced electron transfer pathways of C-dots and then induce the fluorescence enhancement of the C-dots by ∼80% margin...
June 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28433042/-alarmins-and-surgical-injury
#4
J Máca, M Peteja
Surgical intervention is an inseparable part of the management of serious surgical disease. However, surgery also presents a potential risk related to the so-called surgical injury causing immune response. When dysregulated the immune activation is able to cause local complications (i.e. wound dehiscence, impaired healing). Systemic decompartmentization of the immunologic disturbance can negatively influence long-term outcomes (i.e. hospital length of stay, mortality). Due to aseptic conditions in the operating room, such an immune activation is almost always of sterile nature...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28432990/influence-of-red-mud-on-soil-microbial-communities-application-and-comprehensive-evaluation-of-the-biolog-ecoplate-approach-as-a-tool-in-soil-microbiological-studies
#5
Viktória Feigl, Éva Ujaczki, Emese Vaszita, Mónika Molnár
Red mud can be applied as soil ameliorant to acidic, sandy and micronutrient deficient soils. There are still knowledge gaps regarding the effects of red mud on the soil microbial community. The Biolog EcoPlate technique is a promising tool for community level physiological profiling. This study presents a detailed evaluation of Biolog EcoPlate data from two case studies. In experiment "A" red mud from Ajka (Hungary) was mixed into acidic sandy soil in soil microcosms at 5-50 w/w%. In experiement "B" red mud soil mixture was mixed into low quality subsoil in a field experiment at 5-50 w/w%...
April 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28431764/seasonal-monitoring-of-blue-mussel-mytilus-spp-populations-in-a-harbor-area-a-focus-on-responses-to-environmental-factors-and-chronic-contamination
#6
C Lacroix, E Duvieilbourg, N Guillou, J Guyomarch, C Bassoulet, D Moraga, G Chapalain, M Auffret
Coastal waters corresponding to macrotidal systems are among the most variable marine biotopes. Sessile animals as bivalve mollusks may however be found forming intertidal beds at high densities, as allowed by full adaptation to local conditions. A better knowledge of adaptive responses to environmental factors is required to foresee possible adverse effects of global change. At the sub-cellular level, transcriptional responses are among the earliest signals of environmental disturbances and they can reveal subtle and meaningful changes in organism exposed to stress...
April 12, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28430108/a-network-physiology-approach-to-the-assessment-of-the-link-between-sinoatrial-and-ventricular-cardiac-controls
#7
Alberto Porta, Vlasta Bari, Beatrice De Maria, Mathias Baumert
A network physiology approach to evaluate the strength of the directed interactions among cardiac controls at sinoatrial and ventricular levels and respiration (R) is proposed. The network is composed of three nodes (i.e. sinoatrial and ventricular cardiac controls and R) and their activity is exemplified by the variability of heart period (HP), the variability of the duration of the electrical activity of the heart approximated as the temporal distance between Q-wave onset and T-wave end or apex (i.e. QTe or QTa) and thoracic movements respectively...
April 21, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28427481/triage-and-the-lost-art-of-decoding-vital-signs-restoring-physiologically-based-triage-skills-in-complex-humanitarian-emergencies
#8
Frederick M Burkle
Triage management remains a major challenge, especially in resource-poor settings such as war, complex humanitarian emergencies, and public health emergencies in developing countries. In triage it is often the disruption of physiology, not anatomy, that is critical, supporting triage methodology based on clinician-assessed physiological parameters as well as anatomy and mechanism of injury. In recent times, too many clinicians from developed countries have deployed to humanitarian emergencies without the physical exam skills needed to assess patients without the benefit of remotely fed electronic monitoring, laboratory, and imaging studies...
April 21, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28427292/chemical-analyses-and-in-vitro-and-in-vivo-toxicity-of-fruit-methanol-extract-of-sechium-edule-var-nigrum-spinosum
#9
Itzen Aguiñiga-Sánchez, Jorge Cadena-Íñiguez, Edelmiro Santiago-Osorio, Guadalupe Gómez-García, Víctor Manuel Mendoza-Núñez, Juana Rosado-Pérez, Mirna Ruíz-Ramos, Víctor Manuel Cisneros-Solano, Edgar Ledesma-Martínez, Angel de Jesus Delgado-Bordonave, Ramón Marcos Soto-Hernández
CONTEXT: Sechium edule (Jacq.) Sw. (Cucurbitaceae) is used in ethnomedicine, but the diversity of the varietal groups of this species has not often been considered. This is important because we previously reported that different variety of species exhibit different activities across different tumor cell lines. OBJECTIVE: This study investigates the chemical composition and biological activities of extracts obtained from S. edule var. nigrum spinosum. MATERIALS AND METHODS: The leukemia P388 cell line and mononuclear bone marrow cells (MNCBMs) were treated with the extract at a concentration ranging from 40 to 2370 μg/mL for cytotoxicity and viability assays...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28427004/enzymatic-activity-of-the-cam-pde1-system-upon-addition-of-actinyl-ions
#10
Florian Brulfert, Samir Safi, Aurélie Jeanson, Harald Foerstendorf, Stephan Weiss, Catherine Berthomieu, Sandrine Sauge-Merle, Éric Simoni
The threat of a dirty bomb which could cause internal contamination has been of major concern for the past decades. Because of their high chemical toxicity and their presence in the nuclear fuel cycle, uranium and neptunium are two actinides of high interest. Calmodulin (CaM) which is a ubiquitous protein present in all eukaryotic cells and is involved in calcium-dependent signaling pathways has a known affinity for uranyl and neptunyl ions. The impact of the complexation of these actinides on the physiological response of the protein remains, however, largely unknown...
April 8, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28426149/click-chemistry-mediated-rapid-microbubble-catching-for-acute-thrombus-ultrasound-molecular-imaging
#11
Tuantuan Wang, Chuxiao Yuan, Bingyang Dai, Yang Liu, Mingxi Li, Zhenqiang Feng, Qing Jiang, Zhihong Xu, Ningwei Zhao, Ning Gu, Fang Yang
Bioorthogonal coupling chemistry has been studied as one significant advantage for molecular imaging as it offers rapid, efficient, and strong binding, which may also benefit in stability, production, and chemical conjugation. The inverse-electron-demand Diels-Alder reaction between s-tetrazine and trans-cyclooctene (TCO) is an example of a highly selective and rapid bioorthogonal coupling reaction to be used successfully to prepare targeted molecular imaging probes. Herein, based on a two-step pretargeting bioorthogonal chemistry, we report a fast and reliable highly sensitive approach to achieve activated-platelet-specific CD62p targeted thrombus ultrasound molecular imaging...
April 20, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28425631/restraint-stress-increases-prolactin-mediated-phosphorylation-of-signal-transducer-and-activator-of-transcription-5-in-the-hypothalamus-and-adrenal-cortex-in-the-male-mouse
#12
S E Kirk, T Y Xie, F J Steyn, D R Grattan, S J Bunn
Prolactin is a pleiotropic peptide hormone produced by the lactotrophs in the anterior pituitary. Its rate of secretion is primarily regulated by a negative feedback mechanism whereby prolactin stimulates the activity of the tuberoinfundibular dopaminergic (TIDA) neurons, increasing their release of dopamine which accesses the pituitary via the median eminence to suppress further prolactin secretion. In addition to its well established role in lactation, circulating prolactin is secreted in response to stress, although the mechanism by which this is achieved or its cellular targets are unknown...
April 20, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28425167/continuous-subcutaneous-insulin-infusion-special-needs-for-children
#13
REVIEW
Peter Adolfsson, Ralph Ziegler, Ragnar Hanas
Continuous subcutaneous insulin infusion (CSII) is a very common therapy for children with type 1 diabetes. Due to physiological differences they have other requirements for their insulin pump than adults. The main difference is the need for very low basal rates. Even though most available insulin pumps reach a high accuracy at usual basal rates, accuracy decreases for lower rates. In addition, the lowest delivered amount at 1 time is limiting the fine tuning of the basal rate as well as the option for temporary basal rates...
April 20, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28425099/network-analysis-of-adhesion-growth-regulatory-galectins-and-their-binding-sites-in-adult-chicken-retina-and-choroid
#14
Joachim C Manning, Gabriel García Caballero, Clemens Knospe, Herbert Kaltner, Hans-Joachim Gabius
The highly ordered multilayered organization of the adult chicken retina is a suitable test model for examining zonal distribution of the members of a bioeffector family. Based on the concept of the sugar code, the functional pairing of glycan epitopes with cognate receptors (lectins) is emerging as a means to explain the control of diverse physiological activities. Having recently completed the biochemical characterization of all seven adhesion/growth-regulatory galectins present in chicken, it was possible to establish how the individual characteristics of their expression profiles add up to shape the galectin network, which until now has not been defined at this level of complexity...
April 20, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28425080/monitoring-of-paternal-mitochondrial-degradation-in-caenorhabditis-elegans
#15
Miyuki Sato, Ken Sato
In Caenorhabditis elegans embryos, paternally inherited mitochondria and their mitochondrial DNA are degraded via selective autophagy called allophagy (allogeneic organelle autophagy). This is a developmentally programmed autophagy and combined with C. elegans genetics and in vivo imaging provides a unique opportunity to analyze selective autophagy under physiological conditions.
April 20, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28424983/the-effect-of-gastrostomy-placement-on-gastric-function-in-children-a-prospective-cohort-study
#16
Josephine Franken, Femke A Mauritz, Rebecca K Stellato, David C Van der Zee, Maud Y A Van Herwaarden-Lindeboom
BACKGROUND: A gastrostomy placement is frequently performed in pediatric patients who require long-term enteral tube feeding. Unfortunately, postoperative complications such as leakage, feeding intolerance, and gastroesophageal reflux frequently occur. These complications may be due to postoperative gastric dysmotility. Our aim was to evaluate the effect of gastrostomy placement on gastric emptying in children. METHODS: A prospective study was performed including 50 children undergoing laparoscopic gastrostomy...
April 19, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28424742/fret-from-single-to-multiplexed-signaling-events
#17
REVIEW
Gertrude Bunt, Fred S Wouters
Förster resonance energy transfer (FRET) is a powerful tool for the visualization of molecular signaling events such as protein activities and interactions in cells. In its different implementations, FRET microscopy has been mainly used for monitoring single events. Recently, there has been a trend of extending FRET imaging towards the simultaneous detection of multiple events and interactions. The concomitant increase in experimental complexity requires a deeper understanding of the biophysical background of FRET...
April 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28424347/long-term-fitness-consequences-of-early-environment-in-a-long-lived-ungulate
#18
Gabriel Pigeon, Marco Festa-Bianchet, Fanie Pelletier
Cohort effects can be a major source of heterogeneity and play an important role in population dynamics. Silver-spoon effects, when environmental quality at birth improves future performance regardless of the adult environment, can induce strong lagged responses on population growth. Alternatively, the external predictive adaptive response (PAR) hypothesis predicts that organisms will adjust their developmental trajectory and physiology during early life in anticipation of expected adult conditions but has rarely been assessed in wild species...
April 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28422699/hemorrhage-prediction-models-in-surgical-intensive-care-bedside-monitoring-data-adds-information-to-lab-values
#19
Marco De Pasquale, Travis Moss, Sergio Cerutti, James Calland, Douglas Lake, Randall Moorman, Manuela Ferrario
Hemorrhage is a frequent complication in surgery patients; its identification and management have received increasing attention as a target for quality improvement in patient care in the Intensive Care Unit (ICU). The purposes of this work were i) to find an early detection model for hemorrhage by exploring the range of data mining methods that are currently available, and ii) to compare prediction models utilizing continuously measured physiological data from bedside monitors to those using commonly obtained laboratory tests...
April 12, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28422478/reduction-of-ammineruthenium-iii-by-sulfide-enables-in-vivo-electrochemical-monitoring-of-free-endogenous-hydrogen-sulfide
#20
Shujun Wang, Xiaomeng Liu, Meining Zhang
The discovery of endogenous sulfide in mammalian brain opens up a door to understanding of the physiological function of hydrogen sulfide (H2S). The transformation of different forms of sulfide (i.e., S2-, HS-, H2S, bound sulfane sulfur, et al.) in various physiological conditions hurdles the direct detection of hydrogen sulfide in vivo. Here, we find that ammineruthenium (III) (Ru(NH3)63+) can catalyze the electrochemical oxidation of free sulfide including HS- and H2S in a neutral solution (pH 7.4). This property is used to constitute an electrochemical mechanism for selective detection of hydrogen sulfide...
April 19, 2017: Analytical Chemistry
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