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Sodium & water balance

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https://www.readbyqxmd.com/read/28928461/time-dependent-effects-of-ipragliflozin-on-behaviour-and-energy-homeostasis-in-normal-and-type-2-diabetic-rats-continuous-glucose-telemetry-analysis
#1
Hiroyuki Iuchi, Masaya Sakamoto, Daisuke Matsutani, Hirofumi Suzuki, Yosuke Kayama, Norihiko Takeda, Susumu Minamisawa, Kazunori Utsunomiya
Sodium-glucose cotransporter 2 (SGLT2) inhibitors are oral antidiabetic drugs that promote urinary glucose excretion. Conversely, they cause behavioural changes, such as hyperphagia, that result in a positive energy balance. The relationship between energy homeostasis and SGLT2 inhibitors-induced behavioural changes remains unclear. Here we show that ipragliflozin, a SGLT2 inhibitor, time-dependently affects behaviour and enhances energy expenditure in normal and type 2 diabetic Goto-Kakizaki (GK) rats, using continuous glucose telemetry...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28920046/the-effect-of-intraoperative-alkali-treatment-on-recovery-from-atracurium-induced-neuromuscular-blockade-in-renal-transplantation-a-randomized-trial
#2
Navid Noraee, Mohammad Fathi, Majid Golestani Eraghi, Ali Dabbagh, Nilofar Massoudi
BACKGROUND: Intraoperative care and anesthesia method in patients undergoing allograft renal transplantation surgery are very necessary. Acid-base imbalance can alter neuromuscular blockade and recovery time. OBJECTIVES: The aim of the present study was to investigate the effect of acid-base balance on atracurium blockade in renal transplantation. METHODS: In this randomized-controlled trial, 31 end-stage renal disease (ESRD) patients undergoing renal transplantation were randomly assigned into two equal groups...
February 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28918839/prostaglandin-e2-induces-prorenin-dependent-activation-of-pro-renin-receptor-and-upregulation-of-cyclooxygenase-2-in-collecting-duct-cells
#3
Nicolás Salinas-Parra, Cristian Reyes-Martínez, Minolfa C Prieto, Alexis A Gonzalez
BACKGROUND: Prostaglandin E2 (PGE2) regulates renin expression in renal juxtaglomerular cells. PGE2 acts through E-prostanoid (EP) receptors in the renal collecting duct (CD) to regulate sodium and water balance. CD cells express EP1 and EP4, which are linked to protein kinase C (PKC) and PKA downstream pathways, respectively. Previous studies showed that the presence of renin in the CD, and that of PKC and PKA pathways, activate its expression. The (pro)renin receptor (PRR) is also expressed in CD cells, and its activation enhances cyclooxygenase-2 (COX-2) through extracellular signal-regulated kinase (ERK)...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28917362/a-comparative-study-of-the-antacid-effect-of-some-commonly-consumed-foods-for-hyperacidity-in-an-artificial-stomach-model
#4
Vandana Panda, Priyanka Shinde, Jyoti Deora, Pankaj Gupta
OBJECTIVES: The incorporation of certain alkalinizing vegetables, fruits, milk and its products in the diet has been known to alleviate hyperacidity. These foods help to restore the natural gastric balance and function, curb acid reflux, aid digestion, reduce the burning sensation due to hyperacidity and soothe the inflamed mucosa of the stomach. The present study evaluates and compares the antacid effect of broccoli, kale, radish, cucumber, lemon juice, cold milk and curd in an artificial stomach model...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28887070/decreased-serum-sodium-levels-predict-symptomatic-vasospasm-in-patients-with-subarachnoid-hemorrhage
#5
Yoichi Uozumi, Takashi Mizobe, Hirohito Miyamoto, Noriaki Ashida, Tsuyoshi Katsube, Shotaro Tatsumi, Mitsugu Nakamura, Eiji Kohmura
BACKGROUND: Symptomatic vasospasm is a major cause of morbidity and mortality in subarachnoid hemorrhage patients. Hyponatremia and dehydration due to natriuresis after subarachnoid hemorrhage are related to symptomatic vasospasm. Therefore, most institutions are currently targeting euvolemia and eunatremia in subarachnoid hemorrhage patients to avoid complications. We retrospectively investigated the predictors of symptomatic vasospasm with respect to water and sodium homeostasis, while maintaining euvolemia and eunatremia after subarachnoid hemorrhage...
September 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28879625/effects-of-arsenic-compounds-on-microminerals-content-and-antioxidant-enzyme-activities-in-rat-liver
#6
Ana Cláudia Ferreira Souza, Sarah Cozzer Marchesi, Graziela Domingues de Almeida Lima, Mariana Machado-Neves
Interactions of arsenic with essential trace elements may result in disturbances on body homeostasis. In the present study, we aimed to investigate the effects of different arsenic compounds on micromineral content and antioxidant enzyme activities in rat liver. Male Wistar rats were randomly divided into five groups and exposed to sodium arsenite and sodium arsenate at 0.01 and 10 mg/L for 8 weeks in drinking water. The concentration of arsenic increased in the liver of all arsenic-exposed animals. The proportion of zinc and copper increased in animals exposed to 0...
September 6, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28876128/influence-of-inhaled-amiloride-on-lung-fluid-clearance-in-response-to-normobaric-hypoxia-in-healthy-individuals
#7
Courtney M Wheatley, Sarah E Baker, Bryan J Taylor, Manda L Keller-Ross, Steven C Chase, Alex R Carlson, Robert J Wentz, Eric M Snyder, Bruce D Johnson
Wheatley, Courtney M., Sarah E. Baker, Bryan J. Taylor, Manda L. Keller-Ross, Steven C. Chase, Alex R. Carlson, Robert J. Wentz, Eric M. Snyder, and Bruce D. Johnson. Influence of inhaled amiloride on lung fluid clearance in response to normobaric hypoxia in healthy individuals. High Alt Med Biol 00:000-000, 2017. AIM: To investigate the role of epithelial sodium channels (ENaC) on lung fluid clearance in response to normobaric hypoxia, 20 healthy subjects were exposed to 15 hours of hypoxia (fraction of inspired oxygen [FiO2] = 12...
September 6, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28862988/feto-maternal-osmotic-balance-at-term-a-prospective-observational-study
#8
Vibeke Moen, Lars Brudin, Ivar Tjernberg, Mats Rundgren, Lars Irestedt
OBJECTIVE: We performed the present study to investigate the feto-maternal osmotic relationship at term with the hypothesis that, in contrast to the literature, maternal plasma osmolality is lower than fetal levels. In a previous study, we found that maternal plasma sodium at delivery was consistently lower than the sodium in the umbilical artery. Our aim was to corroborate these results with analysis of osmolality. METHODS: Blood was sampled from 30 women immediately before cesarean section and from the umbilical artery and vein before cord clamping and osmolality, sodium and albumin were analyzed...
June 6, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28801267/primum-non-nocere-the-effects-of-sodium-hypochlorite-on-dentin-as-used-in-endodontics
#9
Li-Sha Gu, Xue-Qing Huang, Brandon Griffin, Brian R Bergeron, David H Pashley, Li-Na Niu, Franklin R Tay
The medical literature is replete with the maxim 'primum non nocere', cautioning health care providers to avoid doing any harm to human subjects in their delivery of medical care. Sodium hypochlorite (NaOCl) is a well-established irrigant for root canal treatment because of its antimicrobial and organic tissue remnant dissolution capability. However, little is known about the deleterious effect of this strong oxidizing agent on the integrity of human mineralized dentin. Iatrogenically-induced loss of dentin integrity may precipitate post-treatment root fracture and has potential medico-legal complications...
August 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28796300/apelin-apj-system-a-novel-potential-therapy-target-for-kidney-disease
#10
REVIEW
Zhen Huang, Lele Wu, Linxi Chen
Apelin is an endogenous ligand of seven-transmembrane G protein-coupled receptor APJ. Apelin and APJ are distributed in various tissues, including the heart, lung, kidney, and even in tumor tissues. Studies show that apelin mRNA is highly expressed in the inner stripe of kidney outer medulla, which plays an important role in process of water and sodium balance. Additionally, more studies also indicate that apelin/APJ system exerts a broad range of activities in kidney. Therefore, we review the role of apelin/APJ system in kidney diseases such as renal fibrosis, renal ischemia/reperfusion injury, diabetic nephropathy, polycystic kidney disease and hemodialysis...
August 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28791006/regulation-of-lung-epithelial-sodium-channels-by-cytokines-and-chemokines
#11
REVIEW
Brandi M Wynne, Li Zou, Valerie Linck, Robert S Hoover, He-Ping Ma, Douglas C Eaton
Acute lung injury leading to acute respiratory distress (ARDS) is a global health concern. ARDS patients have significant pulmonary inflammation leading to flooding of the pulmonary alveoli. This prevents normal gas exchange with consequent hypoxemia and causes mortality. A thin fluid layer in the alveoli is normal. The maintenance of this thin layer results from fluid movement out of the pulmonary capillaries into the alveolar interstitium driven by vascular hydrostatic pressure and then through alveolar tight junctions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28771454/%C3%AE-ketoglutarate-drives-electroneutral-nacl-reabsorption-in-intercalated-cells-by-activating-a-g-protein-coupled-receptor-oxgr1
#12
Paul R Grimm, Paul A Welling
PURPOSE OF REVIEW: This review describes the recent discoveries about a powerful electroneutral NaCl reabsorption mechanism in intercalated cells, and its regulation by an intrarenal metabolite paracrine, α-ketoglutartate, and the G-protein coupled receptor, Oxgr1. RECENT FINDINGS: The distal nephron fine-tunes sodium, chloride, potassium, hydrogen, bicarbonate and water transport to maintain electrolyte homeostasis and blood pressure. Intercalated cells have been traditionally viewed as the professional regulators of acid-base balance, but recent studies reveal that a specific population of intercalated cells, identified by the pendrin-transporter, have a surprising role in the regulation of salt balance...
September 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28768662/stimulation-of-diuresis-and-natriuresis-by-renomedullary-infusion-of-a-dual-inhibitor-of-fatty-acid-amide-hydrolase-and-monoacylglycerol-lipase
#13
Ashfaq Ahmad, Zdravka Daneva, Guangbi Li, Sara K Dempsey, Ningjun Li, Justin Poklis, Aron Lichtman, Pin-Lan Li, Joseph Kraft Ritter
The renal medulla, considered critical for the regulation of salt and water balance and long-term blood pressure control, is enriched in anandamide and two of its major metabolizing enzymes, cyclooxygenase-2 (COX-2) and fatty acid amide hydrolase (FAAH). Infusion of anandamide (15, 30 and 60 nmol/min/kg) into the renal medulla of C57BL/6J mice stimulated diuresis and salt excretion in a COX-2- but not COX-1-dependent manner. To determine if endogenous endocannabinoids in the renal medulla can elicit similar effects, the effects of intramedullary isopropyl dodecyl fluorophosphate (IDFP), which inhibits the two major endocannabinoid hydrolases, were studied...
August 2, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28759085/resveratrol-did-not-alter-blood-pressure-in-rats-with-nitric-oxide-synthase-inhibited-hypertension
#14
Mehmet Aydin, Buket Gungor, A Secil Akdur, Hakki Engin Aksulu, Coskun Silan, Ibrahim Susam, Ali Kemal Cabuk, Gizem Cabuk
BACKGROUND: Inhibition of nitric oxide synthase (NOS) is a well-known experimental model of hypertension (HT). It was shown that oxidative stress contributes to the pathogenesis of HT. Resveratrol is a potent anti-oxidant that is found in red grapes, peanuts and red wine. It improves the NO response and increases endothelial NOS expression, which causes endothelium-dependent vasorelaxation as well as renal vasodilation. We aimed to explore the effects of resveratrol on blood pressure, the water-salt balance and sodium excretion as a reflection of renal function in NOS-inhibited rat models...
May 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28744670/rna-binding-protein-hur-enhances-mineralocorticoid-signaling-in-renal-kc3ac1-cells-under-hypotonicity
#15
Ingrid Lema, Larbi Amazit, Khadija Lamribet, Jérôme Fagart, Anne Blanchard, Marc Lombès, Nadia Cherradi, Say Viengchareun
Mineralocorticoid receptor (MR) mediates the sodium-retaining action of aldosterone in the distal nephron. Herein, we decipher mechanisms by which hypotonicity increases MR expression in renal principal cells. We identify HuR (human antigen R), an mRNA-stabilizing protein, as an important posttranscriptional regulator of MR expression. Hypotonicity triggers a rapid and reversible nuclear export of HuR in renal KC3AC1 cells, as quantified by high-throughput microscopy. We also identify a key hairpin motif in the 3'-untranslated region of MR transcript, pivotal for the interaction with HuR and its stabilizing function...
July 25, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28727890/surfactant-concentration-and-type-affects-the-removal-of-escherichia-coli-from-pig-skin-during-a-simulated-hand-wash
#16
D A Jensen, M A Rogers, D W Schaffner
The effect of surfactant type and concentration on a bland soap formulation's ability to remove bacteria from hands remains largely unstudied. Several combinations of surfactants and water were combined to test bacterial removal efficacy using a hand-washing device (two pieces of pig skin and a mechanical motor) to simulate a hand wash. A nalidixic acid-resistant, nonpathogenic strain of Escherichia coli (ATCC 11229) was used. Two anionic surfactants, sodium lauryl sulphate and sodium stearoyl lactylate, and two nonionic surfactants, poloxamer 407 and sorbitan monostearate, each in concentrations of 2, 5 and 10% were studied...
July 20, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28708402/two-step-micellization-model-the-case-of-long-chain-carboxylates-in-water
#17
Žiga Medoš, Marija Bešter-Rogač
The micellization behavior of the long-chain carboxylates-sodium and potassium octanoate (NaC8 and KC8), sodium decanoate (NaC10), potassium decanoate (KC10), cesium decanoate (CsC10), choline decanoate (ChC10), and sodium dodecanoate (NaC12)-in aqueous solutions were studied using isothermal titration calorimetry (ITC) in the temperature range between 288.15 and 328.15 K. Experimental data were analyzed by help of an improved model treating the micellization process as a two-step process. Furthermore, consideration of the state of the stock and titrated solutions during the experiment allowed for the elimination of all usually used empirical parameters...
July 25, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28673579/the-chloride-theory-a-unifying-hypothesis-for-renal-handling-and-body-fluid-distribution-in-heart-failure-pathophysiology
#18
Hajime Kataoka
Body fluid volume regulation is a complex process involving the interaction of various afferent (sensory) and neurohumoral efferent (effector) mechanisms. Historically, most studies focused on the body fluid dynamics in heart failure (HF) status through control of the balance of sodium, potassium, and water in the body, and maintaining arterial circulatory integrity is central to a unifying hypothesis of body fluid regulation in HF pathophysiology. The pathophysiologic background of the biochemical determinants of vascular volume in HF status, however, has not been known...
July 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28665738/development-of-a-dry-medium-for-isolation-of-histomonas-meleagridis-in-the-field
#19
Miguel A Barrios, Anna Kenyon, Robert Beckstead
Blackhead disease is caused by Histomonas meleagridis, an anaerobic protozoan parasite, and results in mortality rates of up to 100% in turkeys and 30% in chickens. Outbreaks of blackhead disease are unpredictable, and the harvesting of H. meleagridis strains from the field would be a great resource for researchers to study its epidemiology. Therefore, the objective of this study was to develop a dry medium that would allow storage at ambient temperatures until needed. Fifty milliliters of horse serum was dried and then mixed with dry medium M199 with Hanks balanced salts (10...
June 2017: Avian Diseases
https://www.readbyqxmd.com/read/28644866/the-high-tolerance-to-aluminium-in-crucian-carp-carassius-carassius-is-associated-with-its-ability-to-avoid-hypoxia
#20
Antonio B S Poléo, Joachim Schjolden, Jørgen Sørensen, Göran E Nilsson
It is well known that aluminium is the principle toxicant killing fish in acidified freshwater systems, and it has been shown that crucian carp (Carassius carassius) can survive exposures to aqueous aluminium levels toxic to most other freshwater fish species. The crucian carp has a remarkable ability to survive anoxic conditions, and the aim of the present study was to reveal if the tolerance to aluminium can be associated with the ability to survive prolonged anoxia. Crucian carps were exposed to either acidic Al-rich water (pH 5...
2017: PloS One
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