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https://www.readbyqxmd.com/read/28432255/osmotic-activation-of-a-ca-2-dependent-phospholipase-c-pathway-that-regulates-%C3%A2-n-trpv1-mediated-currents-in-rat-supraoptic-neurons
#1
Vimal Bansal, Thomas E Fisher
The magnocellular neurosecretory cells (MNCs) of the hypothalamus regulate body fluid balance by releasing the hormones vasopressin (VP) and oxytocin (OT) in an osmolality-dependent manner. Elevations of external osmolality increase MNC firing and hormone release. MNC osmosensitivity is largely due to activation of a mechanosensitive non-selective cation current that responds to osmotically-evoked changes in MNC volume and is mediated by an N-terminal variant of the TRPV1 channel (∆N TRPV1). We report a novel mechanism by which increases in osmolality may modulate ∆N TRPV1-mediated currents and thus influence MNC electrical behaviour...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28431620/role-of-inflammatory-molecules-in-the-alzheimer-s-disease-progression-and-diagnosis
#2
REVIEW
Eva Bagyinszky, Vo Van Giau, Kyuhwan Shim, Kyoungho Suk, Seong Soo A An, SangYun Kim
Alzheimer's disease (AD) is a complex disorder and the most common form of neurodegenerative dementia. Several genetic, environmental, and physiological factors, including inflammations and metabolic influences, are involved in the progression of AD. Inflammations are composed of complicated networks of many chemokines and cytokines with diverse cells. Inflammatory molecules are needed for the protection against pathogens, and maintaining their balances is important for normal physiological function. Recent studies demonstrated that inflammation may be involved in neurodegenerative dementia...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431202/pharmacological-interventions-for-acute-pancreatitis
#3
REVIEW
Elisabetta Moggia, Rahul Koti, Ajay P Belgaumkar, Federico Fazio, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: In people with acute pancreatitis, it is unclear what the role should be for medical treatment as an addition to supportive care such as fluid and electrolyte balance and organ support in people with organ failure. OBJECTIVES: To assess the effects of different pharmacological interventions in people with acute pancreatitis. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL, 2016, Issue 9), MEDLINE, Embase, Science Citation Index Expanded, and trial registers to October 2016 to identify randomised controlled trials (RCTs)...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28426835/outcomes-from-a-cohort-of-patients-with-acute-kidney-injury-subjected-to-continuous-venovenous-hemodiafiltration-the-role-of-negative-fluid-balance
#4
Thais Oliveira Claizoni Dos Santos, Marisa Aparecida de Souza Oliveira, Julio Cesar Martins Monte, Marcelo Costa Batista, Virgilio Gonçalves Pereira Junior, Bento Fortunato Cardoso Dos Santos, Oscar Fernando Pavão Santos, Marcelino de Souza Durão Junior
BACKGROUND: Several factors influence the outcomes in acute kidney injury (AKI), especially in intensive care unit (ICU) patients. In this scenario, continuous renal replacement therapies (CRRT) are used to control metabolic derangements and blood volume. Knowing this fact, it may be possible to change the course of the disease and decrease the high mortality rate observed. Thus, we aimed to evaluate the main risk factors for death in AKI patients needing CRRT. RESULTS: This was a prospective, observational cohort study of ICU patients (N = 183) with AKI who underwent continuous venovenous hemodiafiltration (CVVHDF) as their initial dialysis modality choice...
2017: PloS One
https://www.readbyqxmd.com/read/28426501/fluid-balance-and-organ-failure-in-acute-pancreatitis-retrospective-cohort-study
#5
Hirotada Kobayashi, Osamu Takahashi, Yoshiyuki Fujita
No abstract text is available yet for this article.
May 2017: Pancreas
https://www.readbyqxmd.com/read/28422408/prevention-of-the-osmotic-demyelination-syndrome-after-liver-transplantation-a-multidisciplinary-perspective
#6
J F Crismale, K A Meliambro, S DeMaria, D B Bronster, S Florman, T D Schiano
The osmotic demyelination syndrome (ODS) is a serious neurologic condition that occurs in the setting of rapid correction of hyponatremia. It presents with protean manifestations, from encephalopathy to the "locked-in" syndrome. ODS can complicate liver transplantation (LT), and its incidence may increase with the inclusion of serum sodium as a factor in the Model for End-Stage Liver Disease score. A comprehensive understanding of risk factors for the development of ODS in the setting of LT, along with recommendations to mitigate the risk of ODS, are necessary...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28420463/-changes-of-small-intestinal-villi-microcirculation-in-sidestream-dark-field-imaging-with-different-target-blood-pressure-in-rabbits-during-endotoxin-shock
#7
Fei Gao, Xiaoyun Fu, Mingjiang Qian, Yu Zhang, Guangsu Li, Jie Hu
OBJECTIVE: Changes of small intestine villus microcirculation perfusion in sidestream dark-field (SDF) imaging in the rabbits during endotoxic shock after fluid resuscitation with different target mean arterial pressure (MAP), and evaluation of feasibility of monitoring small intestine villus microcirculation by SDF were studied. METHODS: Sixty standard New Zealand white rabbits were randomly divided into two groups: low target MAP group (group A, n = 30) and high target MAP group (group B, n = 30)...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28414982/relation-of-positive-fluid-balance-to-the-severity-of-renal-impairment-and-recovery-among-st-elevation-myocardial-infarction-complicated-by-cardiogenic-shock
#8
Gilad Margolis, Natalia Kofman, Amir Gal-Oz, Yaron Arbel, Shafik Khoury, Gad Keren, Yacov Shacham
PURPOSE: We analyzed the relationship between a positive fluid balance and its persistence over time on acute kidney injury (AKI) development, severity and resolution among ST elevation myocardial infarction (STEMI) patients complicated by cardiogenic shock. METHODS: We retrospectively studied the cumulative fluid balance intake and output at 96h following hospital admission in 84 consecutive adult patients with STEMI complicated by cardiogenic shock. The cohort was stratified into two groups, based on the presence or absence of positive fluid balance on day 4...
April 7, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28414691/mr-proadm-elevation-upon-icu-admission-predicts-the-outcome-of-septic-patients-and-is-correlated-with-upcoming-fluid-overload
#9
Pierre-Emmanuel Charles, Edwige Péju, Allyriane Dantec, Rémi Bruyère, Nicolas Meunier-Beillard, Auguste Dargent, Sébastien Prin, Darius Wilson, Jean-Pierre Quenot
BACKGROUND: Among septic patients admitted to the intensive care unit (ICU), early recognition of those with the highest risk of death is of paramount importance. We evaluated the prognostic value of Procalcitonin (PCT), mid regional-proadrenomedullin (MR-proADM), copeptine and CT-proendothelin 1 (CT-ProET 1) concentrations. METHODS: This was a prospective cohort study, which included 173 septic patient admitted to one ICU. Blood samples for biomarker measurements were obtained upon admission and on day 5...
April 14, 2017: Shock
https://www.readbyqxmd.com/read/28414302/increased-salt-consumption-induces-body-water-conservation-and-decreases-fluid-intake
#10
Natalia Rakova, Kento Kitada, Kathrin Lerchl, Anke Dahlmann, Anna Birukov, Steffen Daub, Christoph Kopp, Tetyana Pedchenko, Yahua Zhang, Luis Beck, Bernd Johannes, Adriana Marton, Dominik N Müller, Manfred Rauh, Friedrich C Luft, Jens Titze
BACKGROUND: The idea that increasing salt intake increases drinking and urine volume is widely accepted. We tested the hypothesis that an increase in salt intake of 6 g/d would change fluid balance in men living under ultra-long-term controlled conditions. METHODS: Over the course of 2 separate space flight simulation studies of 105 and 205 days' duration, we exposed 10 healthy men to 3 salt intake levels (12, 9, or 6 g/d). All other nutrients were maintained constant...
April 17, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28413026/the-balance-between-metalloproteinases-and-timps-critical-regulator-of-microvascular-endothelial-cell-function-in-health-and-disease
#11
Marcello G Masciantonio, Christopher K S Lee, Valerie Arpino, Sanjay Mehta, Sean E Gill
Endothelial cells (EC), especially the microvascular EC (MVEC), have critical functions in health and disease. For example, healthy MVEC provide a barrier between the fluid and protein found within the blood, and the surrounding tissue. Following tissue injury or infection, the microvascular barrier is often disrupted due to activation and dysfunction of the MVEC. Multiple mechanisms promote MVEC activation and dysfunction, including stimulation by cytokines, mechanical interaction with activated leukocytes, and exposure to harmful leukocyte-derived molecules, which collectively result in a loss of MVEC barrier function...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28411128/the-effects-of-experimental-gestational-hypertension-on-maternal-blood-pressure-and-fluid-intake-and-pre-weanling-hypothalamic-neuronal-activity
#12
Juan Arguelles, Carmen Perillan, Terry G Beltz, Baojian Xue, Daniel Badaue-Passos, Jose A Vega, Alan Kim Johnson
To examine the fetal programming effects of maternal hypertension, natriophilia and hyperreninemia [experimentally induced in rats by partial inter-renal aortic ligature (PAL) prior to mating] fos immunoreactivity was studied in 6-day-old offspring of PAL and control mothers. The purposes of the present set of experiments were twofold. The first was to characterize the effects of PAL on the mother's arterial blood pressure and intake of salt (1.8% NaCl solution) and water over the course of gestation. Second, was to study the pattern of neuronal activation in key brain areas of 6-day-old offspring treated with the dipsogen isoproterenol that were from PAL and control mothers...
April 11, 2017: Appetite
https://www.readbyqxmd.com/read/28410282/new-insights-into-the-lipid-layer-of-the-tear-film-and-meibomian-glands
#13
Reiko Arita, Shima Fukuoka, Naoyuki Morishige
Meibomian glands secrete lipids (meibum) that form the surface lipid layer of the tear film and thereby prevent excessive evaporation of tear fluid. Meibomian gland dysfunction is a major cause of evaporative dry eye, which is more prevalent than aqueous-deficient dry eye. Noninvasive meibography with infrared light and an infrared charge-coupled device camera can detect morphological changes of meibomian glands in both upper and lower eyelids, whereas tear interferometry allows qualitative and quantitative evaluations of the lipid layer of the tear film...
April 12, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28407811/saline-versus-balanced-crystalloids-for-intravenous-fluid-therapy-in-the-emergency-department-study-protocol-for-a-cluster-randomized-multiple-crossover-trial
#14
Wesley H Self, Matthew W Semler, Jonathan P Wanderer, Jesse M Ehrenfeld, Daniel W Byrne, Li Wang, Leanne Atchison, Matthew Felbinger, Ian D Jones, Stephan Russ, Andrew D Shaw, Gordon R Bernard, Todd W Rice
BACKGROUND: Prior studies in critically ill patients suggest the supra-physiologic chloride concentration of 0.9% ("normal") saline may be associated with higher risk of renal failure and death compared to physiologically balanced crystalloids. However, the comparative effects of 0.9% saline and balanced fluids are largely unexamined among patients outside the intensive care unit, who represent the vast majority of patients treated with intravenous fluids. METHODS/DESIGN: This study, entitled Saline Against Lactated Ringer's or Plasma-Lyte in the Emergency Department (SALT-ED), is a pragmatic, cluster, multiple-crossover trial at a single institution evaluating clinical outcomes of adults treated with 0...
April 13, 2017: Trials
https://www.readbyqxmd.com/read/28406441/beverage-consumption-habits-among-the-european-population-association-with-total-water-and-energy-intakes
#15
Mariela Nissensohn, Almudena Sánchez-Villegas, Pilar Galan, Aida Turrini, Nathalie Arnault, Lorenza Mistura, Adriana Ortiz-Andrellucchi, Fabien Szabo de Edelenyi, Laura D'Addezio, Lluis Serra-Majem
BACKGROUND: Fluid and water intake have received limited attention in epidemiological studies. The aim of this study was to compare the average daily consumption of foods and beverages in adults of selective samples of the European Union (EU) population in order to understand the contribution of these to the total water intake (TWI), evaluate if the EU adult population consumes adequate amounts of total water (TW) according to the current guidelines, and to illustrate the real water intake in Europe...
April 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28402007/interactions-of-bovine-oocytes-with-follicular-elements-with-respect-to-lipid-metabolism
#16
Ewelina Warzych, Piotr Pawlak, Marcin Pszczola, Adam Cieslak, Zofia E Madeja, Dorota Lechniak
Among many factors, lipid metabolism within the follicular environment emerges as an important indicator of oocyte quality. In the literature a crucial significance is described concerning follicular fluid (FF) composition as well as messenger RNA (mRNA) expression in follicular cells. The aim of this study was to describe the relationship between oocyte, FF and follicular cells with regard to lipid metabolism. The set of data originating from individual follicles comprised: lipid droplets (LD) number in oocytes (BODIPY staining), mRNA expression of seven genes in cumulus and granulosa cells (SCD, FADS2, ELOVL2, ELOVL5, GLUT1, GLUT3, GLUT8; real time polymerase chain reaction) and fatty acid (FA) composition in FF (gas chromatography)...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28399905/cardiac-biomarkers-are-associated-with-maximum-stage-of-acute-kidney-injury-in-critically-ill-patients-a-prospective-analysis
#17
Ryan Haines, Siobhan Crichton, Jessica Wilson, David Treacher, Marlies Ostermann
BACKGROUND: This study aimed to investigate whether cardiac troponin T (cTnT), cardiac troponin I (cTnI) and serum N-terminal pro-brain natriuretic peptide (NT-proBNP) are associated with acute kidney injury (AKI) and need for acute renal replacement therapy (RRT) in adult patients admitted to the intensive care unit (ICU). METHODS: We analysed prospectively collected data for patients admitted to the ICU between June and December 2010 for non-cardiac reasons. The Kidney Disease Improving Global Outcomes creatinine criteria were applied to identify patients with AKI including those who received acute RRT...
April 12, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28398962/population-based-assessment-of-intraoperative-fluid-administration-practices-across-three-surgical-specialties
#18
Scott E Regenbogen, Nirav J Shah, Stacey D Collins, Samantha Hendren, Michael J Englesbe, Darrell A Campbell
OBJECTIVE: To assess the variation in hospitals' approaches to intraoperative fluid management and their association with postoperative recovery. BACKGROUND: Despite increasing interest in goal-directed, restricted-volume fluid administration for major surgery, there remains little consensus on optimal strategies, due to the lack of institution-level studies of resuscitation practices. METHODS: Among 64 hospitals in a state-wide surgical collaborative, we profiled fluid administration practices during 8404 intestinal resections, 22,854 hysterectomies, and 1471 abdominopelvic endovascular procedures...
May 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28397931/the-hydrodynamics-of-segmented-two-phase-flow-in-a-circular-tube-with-rapidly-dissolving-drops
#19
Thomas F Leary, Arun Ramachandran
This article discusses boundary integral simulations of dissolving drops flowing through a cylindrical tube for large aspect ratio drops. The dynamics of drop dissolution is determined by three dimensionless parameters: λ, the viscosity of the drop fluid relative to the suspending fluid; Ca, the capillary number defining the ratio of the hydrodynamic force to the interfacial tension force; and k, a dissolution constant based on the velocity of dissolution. For a single dissolving drop, the velocity in the upstream region is greater than the downstream region, and for sufficiently large k, the downstream velocity can be completely reversed, particularly at low Ca...
April 11, 2017: Soft Matter
https://www.readbyqxmd.com/read/28396935/state-of-the-art-in-fluid-and-volume-therapy-a%C3%A2-user-friendly-staged-concept-english-version
#20
M Rehm, N Hulde, T Kammerer, A S Meidert, K Hofmann-Kiefer
Adequate intraoperative infusion therapy is essential for the perioperative outcome of a patient. Both hypo- and hypervolemia can lead to an increased rate of perioperative complications and to a worse outcome. Perioperative infusion therapy should therefore be needs-based. The primary objective is the maintenance of preoperative normovolemia using a rational infusion strategy. Perioperative fluid losses should be differentiated from volume losses due to surgical bleeding or protein losses into the interstitial space...
April 10, 2017: Der Anaesthesist
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