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Sodium chloride

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https://www.readbyqxmd.com/read/27909897/nha2-is-expressed-in-distal-nephron-and-regulated-by-dietary-sodium
#1
Kalyan C Kondapalli, R Todd Alexander, Jennifer L Pluznick, Rajini Rao
Increased renal reabsorption of sodium is a significant risk factor in hypertension. An established clinical marker for essential hypertension is elevated sodium lithium countertransport (SLC) activity. NHA2 is a newly identified Na(+)(Li(+))/H(+) antiporter with potential genetic links to hypertension, which has been shown to mediate SLC activity and H(+)-coupled Na(+)(Li(+)) efflux in kidney-derived MDCK cells. To evaluate a putative role in sodium homeostasis, we determined the effect of dietary salt on NHA2...
December 1, 2016: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/27909789/factors-influencing-aversive-learning-in-the-oriental-fruit-fly-bactrocera-dorsalis
#2
J L Liu, H L Chen, X Y Chen, R K Cui, A Guerrero, X N Zeng
Parameters such as the intensity of conditioned and unconditioned stimuli, the inter-trial interval, and starvation time can influence learning. In this study, the parameters that govern aversive learning in the oriental fruit fly, Bactrocera dorsalis, a serious pest of fruits and vegetables, were examined. Male flies were trained to associate the attractive odorant methyl eugenol, a male lure, with a food punishment, sodium chloride solution, and the conditioned suppression of the proboscis-extension response was investigated...
December 1, 2016: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/27908485/managing-fluid-and-electrolyte-disorders-in-kidney-disease
#3
REVIEW
Cathy Langston
Because of the role of the kidneys in maintaining homeostasis in the body, kidney disease leads to derangements of fluid, electrolyte, and acid-base balance. The most effective therapy of a uremic crisis is careful management of fluid balance, which involves thoughtful assessment of hydration, a fluid treatment plan personalized for the specific patient, and repeated and frequent reassessment of fluid and electrolyte balance. Disorders of sodium, chloride, potassium, calcium, and phosphorus are commonly encountered in kidney disease and some may be life-threatening...
November 28, 2016: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/27908261/n-chlorosuccinimide-mediated-oxidative-chlorination-of-thiols-to-n%C3%AE-protected-amino-alkyl-sulfonyl-azides-and-their-utility-in-the-synthesis-of-sulfonyl-triazole-acids
#4
K M Sharnabai, M Krishnamurthy, N R Sagar, L Santhosh, Sureshbabu V Vommina
An efficient oxidative chlorination of thiols to Nα-protected amino alkyl sulfonyl azides is delineated. The reaction involves in situ generation of sulfonyl chloride employing N-chlorosuccinimide and tetrabutylammonium chloride-water in acetonitrile, followed by the reaction with sodium azide. The protocol is simple, straight forward, mild and high yielding. Amino acids with simple as well as bifunctional side chains were used to obtain Nα-protected amino alkyl sulfonyl azides. Further, sulfonyl azides were utilized to synthesize unnatural amino acids via Cu(OAc)2...
November 30, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27904407/effect-of-various-sodium-chloride-mass-fractions-on-wheat-and-rye-bread-using-different-dough-preparation-techniques
#5
Marta Ambrosewicz-Walacik, Małgorzata Tańska, Daniela Rotkiewicz, Andrzej Piętak
This study assessed the selected properties of bread with reduced amount of sodium chloride. The bread was made from white and wholemeal wheat flour and rye flour. The dough was prepared using three techniques: with yeast, natural sourdough or starter sourdough. Sodium chloride was added to the dough at 0, 0.5, 1.0 and 1.5% of the flour mass. The following bread properties were examined in the study: yield and volume of the loaf, moisture content, crumb firmness and porosity, and organoleptic properties. Reducing the mass fraction of added sodium chloride was not found to have considerable effect on bread yield, whereas it had a significant and variable effect on the loaf volume, and crumb firmness and porosity...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27903222/sustained-elabela-gene-therapy-in-high-salt-induced-hypertensive-rats
#6
Claire A Schreiber, Sara J Holditch, Alex Generous, Yasuhiro Ikeda
BACKGROUND: Elabela (ELA) is a recently identified apelin receptor agonist essential for cardiac development, but its biology and therapeutic potential are unclear. In humans ELA transcripts are detected in embryonic stem cells, induced pluripotent stem cells, kidney, heart and blood vessels. ELA through the apelin receptor promotes angiogenesis in vitro, relaxes murine aortic blood vessels and attenuates high blood pressure in vivo. The apelin receptor when bound to its original ligand, apelin, exerts peripheral vasodilatory and positive inotropic effects, conferring cardioprotection in vivo...
November 21, 2016: Current Gene Therapy
https://www.readbyqxmd.com/read/27901358/mdck-cells-are-capable-of-water-secretion-and-reabsorption-in-response-to-changes-in-the-ionic-environment
#7
Janne P Capra, Sinikka M Eskelinen
A prerequisite for tissue electrolyte homeostasis is highly regulated ion and water transport through kidney or intestinal epithelia. In the present work, we monitored changes in the cell and luminal volumes of type II Madin-Darby canine kidney (MDCK) cells grown in a 3D environment in response to drugs, or to changes in the composition of the basal extracellular fluid. Using fluorescent markers and high-resolution spinning disc confocal microscopy, we could show that lack of sodium and potassium ions in the basal fluid (tetramethylammonium chloride (TMACl) buffer) induces a rapid increase in the cell and luminal volumes...
September 1, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27898524/uromodulin-in-kidney-health-and-disease
#8
Pranav S Garimella, Mark J Sarnak
PURPOSE OF REVIEW: Although uromodulin or Tamm-Horsfall protein was discovered over 60 years ago, its functional role in humans remains unclear. This review highlights new studies elucidating the clinical correlates of uromodulin, its association with kidney function decline, nephrolithiasis and urinary host defense. RECENT FINDINGS: Uromodulin is evolutionarily conserved and has multiple functional roles. In large population studies, higher levels of uromodulin are associated with higher estimated glomerular filtration rate (eGFR) and kidney size, possibly indicating greater kidney functional reserve...
November 24, 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27896510/standard-clinical-protocol-for-bidirectional-hyperthermic-intraperitoneal-chemotherapy-hipec-systemic-leucovorin-5-fluorouracil-and-heated-intraperitoneal-oxaliplatin-in-a-chloride-containing-carrier-solution
#9
Akash M Mehta, Alwin D R Huitema, Jacobus W A Burger, Alexandra R M Brandt-Kerkhof, Sander F van den Heuvel, Victor J Verwaal
BACKGROUND: Intraperitoneal chemotherapy has an established role in the treatment of selected patients with colorectal peritoneal metastases. Oxaliplatin is highly suitable as a chemotherapeutic agent for hyperthermic intraperitoneal chemotherapy (HIPEC), but its use to date has been limited because of the morbidity caused by severe electrolyte and glycemic imbalances associated with 5% glucose as its carrier solution. This report provides an overview of the development, rationale, and application of intraperitoneal chemotherapy and the use of various drugs and carrier solutions...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27895625/evaluation-of-virulence-factors-in-vitro-resistance-to-osmotic-stress-and-antifungal-susceptibility-of-candida-tropicalis-isolated-from-the-coastal-environment-of-northeast-brazil
#10
Diana L Zuza-Alves, Sayama S T Q de Medeiros, Luanda B F C de Souza, Walicyranison P Silva-Rocha, Elaine C Francisco, Maria C B de Araújo, Reginaldo G Lima-Neto, Rejane P Neves, Analy S de Azevedo Melo, Guilherme M Chaves
Several studies have been developed regarding human health risks associated with the recreational use of beaches contaminated with domestic sewage. These wastes contain various micro-organisms, including Candida tropicalis. In this context, the objective of this study was to characterize C. tropicalis isolates from the sandy beach of Ponta Negra, Natal, Rio Grande do Norte, Brazil, regarding the expression of in vitro virulence factors, adaptation to osmotic stress and susceptibility to antifungal drugs. We analyzed 62 environmental isolates and observed a great variation among them for the various virulence factors evaluated...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27892815/monitoring-trihalomethanes-and-nitrogenous-disinfection-by-products-in-blending-desalinated-waters-using-solid%C3%A2-phase-microextraction-and-gas-chromatography
#11
Providencia González-Hernández, Manuel Hernández-Padrón, Verónica Pino, Ana M Afonso, Juan H Ayala
A simple and efficient method has been developed for the extraction and determination of sixteen common volatile halogenated disinfection by-products (DBPs) in blending desalinated waters, using headspace solid-phase microextraction and gas chromatography with flame-ionization detection (HS-SPME/GC-FID). The DBPs determined included 4 trihalomethanes, 6 haloacetonitriles and 6 halonitromethanes. After the optimization using factorial designs of the HS-SPME parameters (optimum: carboxen/polydimethylsiloxane (CAR/PDMS) fiber, extraction time of 60 min at 30 °C, pH 7, addition of 40% (w/v) of sodium chloride, and desorption time of 2 min at 250 °C), quantification limits ranged from 3...
November 28, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27891040/inadvertent-injection-of-potassium-chloride-instead-of-sodium-chloride-during-treatment-of-chronic-low-back-ache-with-epidural-injection-leading-to-paraplegia
#12
Rahul Ranjan, Naiyer Asif, Sohail Ahmad, Syed Ifthekar
Epidural injection of steroid is given for back pain resistant to other conservative management. Normal saline (NS) is used as diluent in 80 mg methylprednisolone and a local anesthetic. Due to a similar looking ampoule of NS and potassium chloride (KCl), there is a probability of accidental use of KCl instead of NS. We present a case of a 50-year-old male patient having low back ache refractory to other conservative treatments. Epidural injection of steroid was given, but accidently KCl was mixed with methylprednisolone instead of NS...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27890942/removal-of-phosphate-from-aqueous-solution-using-alginate-iron-iii-chloride-capsules-a-laboratory-study
#13
Hanna Siwek, Artur Bartkowiak, Małgorzata Włodarczyk, Katarzyna Sobecka
Binding phosphate at participation of alginate/FeCl3 capsules was studied with laboratory experiments. The hydrogel microcapsules were obtained with the dropping-in method, by gelation of sodium alginate water solution by iron (III) chloride solution. Phosphate adsorption characteristics were studied in a static batch system with respect to changes in contact time, initial phosphates concentration, pH of solution, and temperature. After 24 h of the tests, average 87.5% of phosphate ions were removed from the natural water solutions; after 48 h, an equilibrium was reached...
2016: Water, Air, and Soil Pollution
https://www.readbyqxmd.com/read/27889162/tolerance-of-clostridium-perfringens-biofilms-to-disinfectants-commonly-used-in-the-food-industry
#14
Audrey Charlebois, Mario Jacques, Martine Boulianne, Marie Archambault
Clostridium perfringens is an opportunistic pathogen that can cause food poisoning in humans and various enterotoxemia in animal species. Recently, it was shown to form mono-species biofilms, a structured community of bacterial cells enclosed in a self-produced extracellular matrix. Biofilms have been associated with tolerance to antibiotics, disinfectants, and physical and environmental stresses. Very little is known about the tolerance of C. perfringens biofilm toward disinfectants. In the present study, susceptibilities of C...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27885225/the-physical-signs-of-impending-dehydration-among-elderly-people-in-nursing-homes-the-association-with-axillary-skin-temperature-humidity-intraoral-moisture-content-and-salivary-components
#15
Mayumi Okuyama, Masumi Nishida
PURPOSE: The aim of the present study was to examine the association between impending dehydration among elderly people in nursing homes and physical signs, including the axillary skin temperature, humidity, intraoral moisture content, and salivary components. METHODS: The study included 78 elderly individuals who required long-term care in a nursing home (11 men and 67 women; average age, 86.6±7.3 years). The elderly subjects were classified in two groups according to their serum osmolality levels: those with levels between the upper limit reference value (292 mOsm/kg H2O) and the diagnostic reference value of dehydration (300 mOsm/kg H2O) were classified into the boundary zone group and those with levels of <292 mOsm/kg H2O were classified into the normal range group...
2016: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/27885104/could-vitamin-c-and-zinc-chloride-protect-the-germ-cells-against-sodium-arsenite
#16
L S Altoé, I B Reis, Mlm Gomes, H Dolder, Jc Monteiro Pirovani
Arsenic (As) is commonly associated with natural and human processes such as volcanic emissions, mining and herbicides production, being an important pollutant. Several studies have associated As intake with male fertility reduction, thus the aim of the present study was to evaluate whether vitamin C and/or zinc would counteract As side effects within the testicles. Adult male Wistar rats were divided into six experimental groups: control, sodium arsenite (5 mg/kg/day), vitamin C (100 mg/kg/day), zinc chloride (ZnCl2; 20 mg/kg/day), sodium arsenite + vitamin C and sodium arsenite + ZnCl2 Testicles and epididymis were harvested and either frozen or routinely processed to be embedded in glycol methacrylate resin...
November 24, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/27884516/bioleaching-combined-brine-leaching-of-heavy-metals-from-lead-zinc-mine-tailings-transformations-during-the-leaching-process
#17
Maoyou Ye, Pingfang Yan, Shuiyu Sun, Dajian Han, Xiao Xiao, Li Zheng, Shaosong Huang, Yun Chen, Shengwei Zhuang
During the process of bioleaching, lead (Pb) recovery is low. This low recovery is caused by a problem with the bioleaching technique. This research investigated the bioleaching combination of bioleaching with brine leaching to remove heavy metals from lead-zinc mine tailings. The impact of different parameters were studied, including the effects of initial pH (1.5-3.0) and solid concentration (5-20%) for bioleaching, and the effects of sodium chloride (NaCl) concentration (10-200 g/L) and temperature (25 and 50 °C) for brine leaching...
November 21, 2016: Chemosphere
https://www.readbyqxmd.com/read/27881775/a-biophysical-model-for-cytotoxic-cell-swelling
#18
Koen Dijkstra, Jeannette Hofmeijer, Stephan A van Gils, Michel J A M van Putten
: We present a dynamic biophysical model to explain neuronal swelling underlying cytotoxic edema in conditions of low energy supply, as observed in cerebral ischemia. Our model contains Hodgkin-Huxley-type ion currents, a recently discovered voltage-gated chloride flux through the ion exchanger SLC26A11, active KCC2-mediated chloride extrusion, and ATP-dependent pumps. The model predicts changes in ion gradients and cell swelling during ischemia of various severity or channel blockage with realistic timescales...
November 23, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27880955/long-term-angiotensin-ii-receptor-blockade-limits-hypertension-aortic-dysfunction-and-structural-remodeling-in-a-rat-model-of-chronic-kidney-disease
#19
Omar Z Ameer, Mark Butlin, Elena Kaschina, Manuela Sommerfeld, Alberto P Avolio, Jacqueline K Phillips
BACKGROUND/AIMS: Chronic kidney disease (CKD) is associated with large artery remodeling, endothelial dysfunction and calcification, with angiotensin II (Ang II) a known driver of these pathologies. We investigated long-term Ang II type 1 receptor inhibition with valsartan on aortic function and structure in the Lewis polycystic kidney (LPK) rat model of CKD. METHODS: Mixed sex LPK and Lewis control (total n = 28) treated (valsartan 60 mg/kg/day p.o. from 4 to 18 weeks) and vehicle groups were studied...
November 24, 2016: Journal of Vascular Research
https://www.readbyqxmd.com/read/27878608/claudins-in-barrier-and-transport-function-the-kidney
#20
REVIEW
Yongfeng Gong, Jianghui Hou
Claudins are discovered to be key players in renal epithelial physiology. They are involved in developmental, physiological, and pathophysiological differentiation. In the glomerular podocytes, claudin-1 is an important determinant of cell junction fate. In the proximal tubule, claudin-2 plays important roles in paracellular salt reabsorption. In the thick ascending limb, claudin-14, -16, and -19 regulate the paracellular reabsorption of calcium and magnesium. Recessive mutations in claudin-16 or -19 cause an inherited calcium and magnesium losing disease...
November 23, 2016: Pflügers Archiv: European Journal of Physiology
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