keyword
MENU ▼
Read by QxMD icon Read
search

Electrolyte balance

keyword
https://www.readbyqxmd.com/read/28306271/switching-the-structural-force-in-ionic-liquid-solvent-mixtures-by-varying-composition
#1
Alexander M Smith, Alpha A Lee, Susan Perkin
The structure and interactions in electrolytes at high concentration have implications from energy storage to biomolecular interactions. However, many experimental observations are yet to be explained in these mixtures, which are far beyond the regime of validity of mean-field models. Here, we study the structural forces in a mixture of ionic liquid and solvent that is miscible in all proportions at room temperature. Using the surface force balance to measure the force between macroscopic smooth surfaces across the liquid mixtures, we uncover an abrupt increase in the wavelength above a threshold ion concentration...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28303369/clinical-aspects-of-changes-in-water-and-sodium-homeostasis-in-the-elderly
#2
REVIEW
Christian A Koch, Tibor Fulop
The population of elderly individuals is increasing worldwide. With aging, various hormonal and kidney changes occur, both affecting water homeostasis. Aging is a risk factor for chronic kidney disease (CKD) and many features of CKD are reproduced in the aging kidney. Dehydration and hyperosmolarity can be triggered by diminished thirst perception in this population. Elderly with dementia are especially susceptible to abnormalities of their electrolyte and body water homeostasis and should be (re-)assessed for polypharmacy...
March 16, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28270239/-late-presentation-of-congenital-diaphragmatic-hernia
#3
N S Planting, A K E Hoffman-Haringsma
Congenital diaphragmatic hernia (CDH) is a rare congenital defect. Most cases are currently diagnosed either prenatally by ultrasound or shortly after birth. Late presentation of CDH is uncommon, and symptoms vary greatly. Here we describe two cases. The first concerns a 9-year-old boy with abdominal pain. The symptoms were interpreted as constipation and he was admitted for a high enema. After a few hours he developed severe respiratory distress; chest X-ray revealed a tension gastrothorax, and thoracostomy resulted in immediate respiratory improvement...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28267585/disturbances-of-thirst-and-fluid-balance-associated-with-aging
#4
REVIEW
Denovan P Begg
During heat waves, significant mortality and morbidity occurs in elderly populations due to heat-stress and dehydration. The dehydration is primarily attributable to inadequate water intake caused by dysfunction of the central nervous system mechanisms controlling thirst. The phenomenon of a reduced thirst in response to dehydration in aging was first observed decades ago and has been examined extensively since. The reduced thirst and ingestive behavior have been reported consistently in response to hyperosmotic stimuli, hypovolemic stimuli and dehydration in both elderly humans and animal models of aging...
March 3, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28262982/high-current-injection-into-dynamic-p-n-homojunction-in-polymer-light-emitting-electrochemical-cells
#5
Tomo Sakanoue, Jinpeng Li, Hisaaki Tanaka, Ryota Ito, Shimpei Ono, Shin-Ichi Kuroda, Taishi Takenobu
Ions and electrons in blends of polymer-electrolyte can work in ensemble to operate light-emitting electrochemical cells (LECs), in which the unique features of in situ formed p-n homojunctions offer efficient charge injection and transport. However, electrochemical features give rise to significant stability and speed issues due to limited electrochemical stability and low ion mobility, resulting in low brightness and a slow response of LECs. Here, these issues are overcome by the separate control of ionic and electronic charges, using a simple driving pulse superimposed on a small base voltage; ions with slow response are rearranged by a constant base voltage, while a high-voltage pulse, superimposed upon the base, injects electrons/holes which have fast response, with minimal effect on the ions...
March 6, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28260202/biochemical-responses-and-physical-performance-during-high-intensity-resistance-circuit-training-in-hypoxia-and-normoxia
#6
Domingo J Ramos-Campo, Jacobo A Rubio-Arias, Stéphane Dufour, Linda Chung, Vicente Ávila-Gandía, Pedro E Alcaraz
PURPOSE: The aim of this study was to analyze the effect of hypoxia on metabolic and acid-base balance, blood oxygenation, electrolyte, and half-squat performance variables during high-resistance circuit (HRC) training. METHODS: Twelve resistance-trained subjects participated in this study. After a 6RM testing session, participants performed three randomized trials of HRC: normoxia (NORM: FiO2 = 0.21), moderate hypoxia (MH: FiO2 = 0.16), or high hypoxia (HH: FiO2 = 0...
March 4, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28259134/role-of-reactive-oxygen-species-in-mast-cell-degranulation
#7
REVIEW
M A Chelombitko, A V Fedorov, O P Ilyinskaya, R A Zinovkin, B V Chernyak
Mast cells are a heterogeneous multifunctional cellular population that promotes connective tissue homeostasis by slow release of biologically active substances, affecting primarily the permeability of vessels and vascular tone, maintenance of electrolyte and water balance, and composition of the extracellular matrix. Along with this, they can rapidly release inflammatory mediators and chemotactic factors that ensure the mobilization of effector innate immune cells to fight against a variety of pathogens. Furthermore, they play a key role in initiation of allergic reactions...
December 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28258576/diabetes-insipidus
#8
H A Jenny Lu
Disruption of water and electrolyte balance is frequently encountered in clinical medicine. Regulating water metabolism is critically important. Diabetes insipidus (DI) presented with excessive water loss from the kidney is a major disorder of water metabolism. To understand the molecular and cellular mechanisms and pathophysiology of DI and rationales of clinical management of DI is important for both research and clinical practice. This chapter will first review various forms of DI focusing on central diabetes insipidus (CDI) and nephrogenic diabetes insipidus (NDI ) ...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28255797/acetate-buffered-crystalloid-infusate-versus-infusion-of-0-9-saline-and-hemodynamic-stability-in-patients-undergoing-renal-transplantation-prospective-randomized-controlled-trial
#9
Carmen Pfortmueller, Georg-Christian Funk, Eva Potura, Christian Reiterer, Florian Luf, Barbara Kabon, Wilfred Druml, Edith Fleischmann, Gregor Lindner
BACKGROUND: Infusion therapy is one of the most frequently prescribed medications in hospitalized patients. Currently used crystalloid solutes have a variable composition and may therefore influence acid-base status, intracellular and extracellular water content and plasma electrolyte compositions and have a major impact on organ function and outcome. The aim of our study was to investigate whether use of acetate-based balanced crystalloids leads to better hemodynamic stability compared to 0...
March 2, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28250586/physiological-performance-of-two-contrasting-rice-varieties-under-water-stress
#10
Furqan Khan, Priyanka Upreti, Ruchi Singh, Pradeep Kumar Shukla, Pramod Arvind Shirke
Two rice varieties PR-115 and Super-7 were imposed to water stress and different physiological traits were monitored to evaluate the performance of these varieties under drought. Under water stress condition although the relative water content, osmotic potential, chlorophyll content, photosynthesis rate, carbon discrimination and biomass decreased in both the varieties however, the reduction was more pronounced in Super-7 variety. Oryzanol a trans-ester of ferulic acid functions as antioxidant and it increased along with total phenolic and anthocyanin content in both the varieties under drought stress...
January 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28242751/serum-uromodulin-and-mortality-risk-in-patients-undergoing-coronary-angiography
#11
Graciela E Delgado, Marcus E Kleber, Hubert Scharnagl, Bernhard K Krämer, Winfried März, Jürgen E Scherberich
The mucoprotein uromodulin is the most abundant protein in mammalian urine and has important roles in ion transport, maintenance of water and electrolyte balance, and clearance of bacteria from the urinary tract. Low urinary uromodulin concentrations have been associated with increased mortality risk. However, measuring uromodulin in urine has several preanalytic drawbacks, and sensitive assays for the detection of uromodulin in blood have become available. In this study, we investigated the association of serum uromodulin concentration with cardiovascular biomarkers and mortality risk in a large cohort of patients referred for coronary angiography...
February 27, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28241247/peritoneal-dialysis-vs-furosemide-for-prevention-of-fluid-overload-in-infants-after-cardiac-surgery-a-randomized-clinical-trial
#12
David M Kwiatkowski, Stuart L Goldstein, David S Cooper, David P Nelson, David L S Morales, Catherine D Krawczeski
Importance: Fluid overload after congenital heart surgery is frequent and a major cause of morbidity and mortality among infants. Many programs have adopted the use of peritoneal dialysis (PD) for fluid management; however, its benefits compared with those of traditional diuretic administration are unknown. Objective: To determine whether infants randomized to PD vs furosemide for the treatment of oliguria have a higher incidence of negative fluid balance on postoperative day 1, as well as avoidance of 10% fluid overload; shorter duration of mechanical ventilation, intensive care unit stay, and inotrope use; and fewer electrolyte abnormalities...
February 20, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28240028/multidimensional-thin-film-hybrid-electrodes-with-mos2-multilayer-for-electrocatalytic-hydrogen-evolution-reaction
#13
Eungjin Ahn, Byeong-Su Kim
Hybrid electrodes are widely used in various energy storage and conversion devices. However, conventional fabrication methods like simple mixing allow only limited control over the internal electrode structure, and it is often difficult to elucidate the structure-property relationship among the electrode components. Taking advantage of the versatile layer-by-layer (LbL) assembly method, herein we report the preparation of electrocatalytic thin film electrodes for hydrogen evolution reaction (HER), highlighting the importance of nanoscale composition in multidimensional hybrid electrodes...
March 6, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28230786/sex-specificity-of-mineralocorticoid-target-gene-expression-during-renal-development-and-long-term-consequences
#14
Laurence Dumeige, Caroline Storey, Lyvianne Decourtye, Melanie Nehlich, Christophe Lhadj, Say Viengchareun, Laurent Kappeler, Marc Lombès, Laetitia Martinerie
Sex differences have been identified in various biological processes, including hypertension. The mineralocorticoid signaling pathway is an important contributor to early arterial hypertension, however its sex-specific expression has been scarcely studied, particularly with respect to the kidney. Basal systolic blood pressure (SBP) and heart rate (HR) were measured in adult male and female mice. Renal gene expression studies of major players of mineralocorticoid signaling were performed at different developmental stages in male and female mice using reverse transcription quantitative PCR (RT-qPCR), and were compared to those of the same genes in the lung, another mineralocorticoid epithelial target tissue that regulates ion exchange and electrolyte balance...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28215940/elf5-is-a-principal-cell-lineage-specific-transcription-factor-in-the-kidney-that-contributes-to-aqp2-and-avpr2-gene-expression
#15
Justin Grassmeyer, Malini Mukherjee, Jennifer deRiso, Casey Hettinger, Monica Bailey, Satrajit Sinha, Jane E Visvader, Haotian Zhao, Eric Fogarty, Kameswaran Surendran
The mammalian kidney collecting ducts are critical for water, electrolyte and acid-base homeostasis and develop as a branched network of tubular structures composed of principal cells intermingled with intercalated cells. The intermingled nature of the different collecting duct cell types has made it challenging to identify unique and critical factors that mark and/or regulate the development of the different collecting duct cell lineages. Here we report that the canonical Notch signaling pathway components, RBPJ and Presinilin1 and 2, are involved in patterning the mouse collecting duct cell fates by maintaining a balance between principal cell and intercalated cell fates...
April 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28209079/acid-base-disorders-after-orthotopic-bladder-replacement-comparison-of-an-ileal-neobladder-and-an-ileal-conduit
#16
AJin Cho, Seung Min Lee, Jung Woo Noh, Don Kyoung Choi, Yongseong Lee, Sung Tae Cho, Ki Kyung Kim, Young Goo Lee, Young Ki Lee
OBJECTIVES: For many years, creation of an orthotopic neobladder after cystectomy has been popular. In the present study, we measured the extent of metabolic acidosis in patients with ileal neobladders compared with ileal conduits and defined risk factors for development of metabolic acidosis. METHODS: We retrospectively studied 95 patients, who underwent radical cystectomy and urinary diversion to treat invasive bladder cancer from January 2001 to December 2014 at Hallym University Kangnam Sacred Heart Hospital, through investigation of acid-base balance, serum electrolyte levels and renal function one month and one year after operation...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28205588/hypoxia-induced-angiotensin-ii-by-the-lactate-chymase-dependent-mechanism-mediates-radioresistance-of-hypoxic-tumor-cells
#17
Guozhu Xie, Ying Liu, Qiwei Yao, Rong Zheng, Lanfang Zhang, Jie Lin, Zhaoze Guo, Shasha Du, Chen Ren, Quan Yuan, Yawei Yuan
The renin-angiotensin system (RAS) is a principal determinant of arterial blood pressure and fluid and electrolyte balance. RAS component dysregulation was recently found in some malignancies and correlated with poor patient outcomes. However, the exact mechanism of local RAS activation in tumors is still unclear. Here, we find that the local angiotensin II predominantly exists in the hypoxic regions of tumor formed by nasopharyngeal carcinoma CNE2 cells and breast cancer MDA-MB-231 cells, where these tumor cells autocrinely produce angiotensin II by a chymase-dependent rather than an angiotensin converting enzyme-dependent mechanism...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197045/experiences-with-continuous-venovenous-hemofiltration-using-18mmol-l-predilution-citrate-anticoagulation-and-a-phosphate-containing-replacement-solution
#18
Yuen Henry Jeffrey, Shum Hoi-Ping, Anne Leung Kit Hung, Lam Chung-Ling, Yan Wing-Wa, Lai King-Yiu
CONTEXT: Regional citrate anticoagulation for continuous renal replacement therapy is associated with a longer filter-life, less bleeding events and improved mortality. Problems associated with using Prismocitrate 10/2 solution in continuous renal replacement therapy, include hypomagnesemia, hypophosphatemia and the need for additional bicarbonate infusion. AIMS: This study uses the new Prismocitrate 18/0 solution for improved buffer balance and Phoxilium solution for a more favourable electrolyte profile...
January 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28193033/wearable-potentiometric-chloride-sweat-sensor-the-critical-role-of-the-salt-bridge
#19
Dong-Hoon Choi, Jin Seob Kim, Garry R Cutting, Peter C Searson
The components of sweat provide an array of potential biomarkers for health and disease. Sweat chloride is of interest as a biomarker for cystic fibrosis, electrolyte metabolism disorders, electrolyte balance, and electrolyte loss during exercise. Developing wearable sensors for biomarkers in sweat is a major technological challenge. Potentiometric sensors provide a relatively simple technology for on-body sweat chloride measurement, however, equilibration between reference and test solutions has limited the time over which accurate measurements can be made...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28184150/randomized-masked-in-vitro-comparison-of-three-commercially-available-tear-film-osmometers
#20
Guillermo Rocha, Eric Gulliver, Armand Borovik, Clara C Chan
PURPOSE: The purpose of this study was to compare the precision and accuracy of commercially available tear film osmometers. METHODS: Contrived tear solution target values representing the physiological range of tear osmolarity (normal eyes 297 mOsm/L, moderately dry eyes 342 mOsm/L, and severe dry eyes 383 mOsm/L) were constructed using a mix of mono- and divalent electrolytes, metabolites, serum albumin, and pH balanced to 7.4. Solution values were randomized and masked from the investigators during testing...
2017: Clinical Ophthalmology
keyword
keyword
78652
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"