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Sodium balance

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https://www.readbyqxmd.com/read/27908485/managing-fluid-and-electrolyte-disorders-in-kidney-disease
#1
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/27900568/control-of-phosphate-balance-by-the-kidney-and-intestine
#2
REVIEW
Ichiro Kaneko, Sawako Tatsumi, Hiroko Segawa, Ken-Ichi Miyamoto
The prevention and correction of hyperphosphatemia are major goals of the treatment of chronic kidney disease (CKD)-bone mineral disorders, and thus, Pi balance requires special attention. Pi balance is maintained by intestinal absorption, renal excretion, and bone accretion. The kidney is mainly responsible for the plasma Pi concentration. In CKD, reduced glomerular filtration rate leads to various Pi metabolism abnormalities, and Pi absorption in the small intestine also has an important role in Pi metabolism...
November 30, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27900412/demethyleneberberine-alleviates-inflammatory-bowel-disease-in-mice-through-regulating-nf-%C3%AE%C2%BAb-signaling-and-t-helper-cell-homeostasis
#3
Ying-Ying Chen, Rui-Yan Li, Mei-Jing Shi, Ya-Xing Zhao, Yan Yan, Xin-Xin Xu, Miao Zhang, Xiao-Tong Zhao, Yu-Bin Zhang
OBJECTIVE: The activation of NF-κB signaling and unbalance of T-helper (Th) cells have been reported to play a key role in the pathogenesis of colitis. Cortex Phellodendri Chinensis (CPC) is commonly used to treat inflammation and diarrhea. Demethyleneberberine (DMB), a component of CPC, was reported to treat alcoholic liver disease as a novel natural mitochondria-targeted antioxidant in our previous study. In this study, we investigated whether DMB could protect against dextran sulfate sodium (DSS)-induced inflammatory colitis in mice by regulation of NF-κB pathway and Th cells homeostatis...
November 29, 2016: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/27899683/validation-of-an-integrative-mathematical-model-of-dehydration-and-rehydration-in-virtual-humans
#4
W Andrew Pruett, John S Clemmer, Robert L Hester
Water homeostasis is one of the body's most critical tasks. Physical challenges to the body, including exercise and surgery, almost always coordinate with some change in water handling reflecting the changing needs of the body. Vasopressin is the most important hormone that contributes to short-term water homeostasis. By manipulating vascular tone and regulating water reabsorption in the collecting duct of the kidneys, vasopressin can mediate the retention or loss of fluids quickly. In this study, we validated HumMod, an integrative mathematical model of human physiology, against six different challenges to water homeostasis with special attention to the secretion of vasopressin and maintenance of electrolyte balance...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27895423/increased-cd4-cd45ra-foxp3-low-cells-alter-the-balance-between-treg-and-th17-cells-in-colitis-mice
#5
Ya-Hui Ma, Jie Zhang, Xue Chen, You-Fu Xie, Yan-Hua Pang, Xin-Juan Liu
AIM: To investigate the role of regulatory T cell (Treg) subsets in the balance between Treg and T helper 17 (Th17) cells in various tissues from mice with dextran sulfate sodium-induced colitis. METHODS: Treg cells, Treg cell subsets, Th17 cells, and CD4(+)CD25(+)FoxP3(+)IL-17(+) cells from the lamina propria of colon (LPC) and other ulcerative colitis (UC) mouse tissues were evaluated by flow cytometry. Forkhead box protein 3 (FoxP3), interleukin 17A (IL-17A), and RORC mRNA levels were assessed by real-time PCR, while interleukin-10 (IL-10) and IL-17A levels were detected with a Cytometric Beads Array...
November 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27882817/h2s-improves-renal-fibrosis-in-stz-induced-diabetic-rats-by-ameliorating-tgf-%C3%AE-1-expression
#6
Yan Li, Lin Li, Ou Zeng, Jun Mao Liu, Jun Yang
Nephropathy develops in many patients with type 1 diabetes mellitus (T1DM). However, the specific mechanisms and therapies remain unclear. For this purpose we investigated the effects of hydrogen sulfide (H2S) on renal fibrosis in streptozotocin (STZ) induced diabetic rats and its underlying mechanisms. Experimental rats were randomly divided into four groups: Control group (normal rats), DM group (diabetes rats), DM + NaHS group [diabetes rats treated with sodium hydrosulfide (NaHS)], and NaHS group (normal rats treated with NaHS)...
November 24, 2016: Renal Failure
https://www.readbyqxmd.com/read/27882075/in-silico-evaluation-of-the-potential-antiarrhythmic-effect-of-epigallocatechin-3-gallate-on-cardiac-channelopathies
#7
Maroua Boukhabza, Jaouad El Hilaly, Nourdine Attiya, Ahmed El-Haidani, Younes Filali-Zegzouti, Driss Mazouzi, Mohamed-Yassine Amarouch
Ion channels are transmembrane proteins that allow the passage of ions according to the direction of their electrochemical gradients. Mutations in more than 30 genes encoding ion channels have been associated with an increasingly wide range of inherited cardiac arrhythmias. In this line, ion channels become one of the most important molecular targets for several classes of drugs, including antiarrhythmics. Nevertheless, antiarrhythmic drugs are usually accompanied by some serious side effects. Thus, developing new approaches could offer added values to prevent and treat the episodes of arrhythmia...
2016: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/27876640/physiological-state-tunes-mesolimbic-signaling-lessons-from-sodium-appetite-and-inspiration-from-randall-r-sakai
#8
REVIEW
Samantha M Fortin, Mitchell F Roitman
Sodium deficit poses a life-threatening challenge to body fluid homeostasis and generates a sodium appetite - the behavioral drive to ingest sodium. Dr. Randall R. Sakai greatly contributed to our understanding of the hormonal responses to negative sodium balance and to the central processing of these signals. Reactivity to the taste of sodium solutions and the motivation to seek and consume sodium changes dramatically with body fluid balance. Here, we review studies that collectively suggest that sodium deficit recruits the mesolimbic system to play a role in the behavioral expression of sodium appetite...
November 19, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27871936/commd9-promotes-tfdp1-e2f1-transcriptional-activity-via-interaction-with-tfdp1-in-non-small-cell-lung-cancer
#9
Weihua Zhan, Wenjuan Wang, Tianyu Han, Caifeng Xie, Tingting Zhang, Mingxi Gan, Jian-Bin Wang
COMMD protein family is an evolutionarily conserved gene family implicated in a number of critical processes including inflammation, copper homeostasis, sodium balance, endosomal sorting and cancer. In an effort to profile the expression pattern of COMMD family in several non-small cell lung cancer (NSCLC) cell lines, we found that compared with that in human bronchial epithelial (HBE) cells, the mRNA expression levels of five COMMD genes including COMMD3, COMMD4, COMMD5, COMMD6 and COMMD8 were significantly down-regulated, whereas COMMD9 was up-regulated in NSCLC cell lines...
November 19, 2016: Cellular Signalling
https://www.readbyqxmd.com/read/27862139/differential-diagnosis-of-hyponatraemia-moving-forward
#10
Ewout J Hoorn
Hyponatraemia is a resident's nightmare. A water balance disorder disguised as decreased serum sodium concentration. A plethora of diagnostic algorithms that seem to have been developed with the sole purpose of getting you lost as quickly as possible. Nothing but untrustworthy parameters to guide you through this dark wood. And when you finally see light at the end of the tunnel, there is always some staff member, alias electrolyte aficionado, who enjoys public interrogation and makes you feel you're back to square one...
November 8, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27857840/tolvaptan-use-during-hyperhydration-in-paediatric-intracranial-lymphoma-with-siadh
#11
Ruben H Willemsen, Violeta Delgado-Carballar, Daniela Elleri, Ajay Thankamony, G A Amos Burke, James C Nicholson, David B Dunger
: An 11-year-old boy developed severe syndrome of inappropriate antidiuretic hormone secretion (SIADH) after diagnosis of an intracranial B-cell lymphoma. His sodium levels dropped to 118-120 mmol/L despite 70% fluid restriction. For chemotherapy, he required hyperhydration, which posed a challenge because of severe hyponatraemia. Tolvaptan is an oral, highly selective arginine vasopressin V2-receptor antagonist, which has been licensed in adults for the management of SIADH and has been used in treating paediatric heart failure...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27849390/adverse-effects-of-tempol-on-hidrosaline-balance-in-rats-with-acute-sodium-overload
#12
N M Kouyoumdzian, Nl Rukavina Mikusic, G Cao, M R Choi, Sl Della Penna, B E Fernández, J E Toblli, M I Rosón
We studied the effects of tempol, an oxygen radical scavenger, on hydrosaline balance in rats with acute sodium overload. Male rats with free access to water were injected with isotonic (control group) or hypertonic saline solution (0.80 mol/l NaCl) either alone (Na group) or with tempol (Na-T group). Hydrosaline balance was determined during a 90 min experimental period. Protein expressions of aquaporin 1 (AQP1), aquaporin 2 (AQP2), angiotensin II (Ang II) and endothelial nitric oxide synthase (eNOS) were measured in renal tissue...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27835975/empagliflozin-lessened-cardiac-injury-and-reduced-visceral-adipocyte-hypertrophy-in-prediabetic-rats-with-metabolic-syndrome
#13
Hiroaki Kusaka, Nobutaka Koibuchi, Yu Hasegawa, Hisao Ogawa, Shokei Kim-Mitsuyama
BACKGROUND: The potential benefit of SGLT2 inhibitors in metabolic syndrome is with prediabetic stage unclear. This work was undertaken to investigate the non-glycemic effect of empagliflozin on metabolic syndrome rats with prediabetes. METHODS: SHR/NDmcr-cp(+/+) rats (SHRcp), a model of metabolic syndrome with prediabetes, were given empagliflozin for 10 weeks to examine the effects on urinary sodium and water balance, visceral and subcutaneous adipocyte, and cardiac injury...
November 11, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27825364/mid-regional-pro-adrenomedullin-mr-proadm-a-marker-of-positive-fluid-balance-in-critically-ill-patients-results-of-the-envol-study
#14
Bernard Vigué, Pierre-Etienne Leblanc, Frédérique Moati, Eric Pussard, Hussam Foufa, Aurore Rodrigues, Samy Figueiredo, Anatole Harrois, Jean-Xavier Mazoit, Homa Rafi, Jacques Duranteau
BACKGROUND: The optimal control of blood volume without fluid overload is a main challenge in the daily care of intensive care unit (ICU) patients. Accordingly this study focused on the identification of biomarkers to help characterize fluid overload status. METHODS: Sixty-seven patients were studied from ICU admission to day 7 (D7). Blood and urine samples were taken daily and sodium and water balance strictly calculated resulting in a total cumulative assessment of ∆Na(+) and ∆H2O...
November 9, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27820741/does-fluid-management-affect-the-occurrence-of-acute-kidney-injury
#15
Johan Mårtensson, Rinaldo Bellomo
PURPOSE OF REVIEW: To describe the potential impact of different fluid management strategies on renal outcomes in critically ill and postoperative patients. RECENT FINDINGS: Uncritical fluid administration may induce renal compartment syndrome and renal venous congestion, which contribute to kidney dysfunction. In more than 5000 randomized surgical or septic patients, goal-directed therapy did not reduce fluid accumulation, acute kidney injury (AKI) development or need for renal replacement therapy...
November 4, 2016: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/27815853/simulation-of-arsenic-retention-in-constructed-wetlands
#16
M C Valles-Aragón, M T Alarcón-Herrera, E Llorens, J Obradors-Prats, A Leyva
The software RCB-arsenic was developed previously to simulate the metalloid behavior in a constructed wetland (CW). The model simulates water flow and reactive transport by contemplating the major processes of arsenic (As) retention inside of CW. The objective of this study was to validate the RCB-arsenic model by simulating the behavior of horizontal flow CW for As removal from water. The model validation was made using data from a 122-day experiment. Two CWs prototypes were used: one planted with Eleocharis macrostachya (CW_planted) and another one unplanted (CW_unplanted) as a control...
November 4, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27814606/regulation-and-function-of-renal-medullary-cyclooxygenase-2-during-high-salt-loading
#17
Tianxin Yang, Mi Liu
Prostaglandins (PGs) are important autocrine/paracrine regulators that contribute to sodium balance and blood pressure control. Along the nephron, the highest amount of PGE2 is found in the distal nephron, an important site for fine-tuning of urinary sodium and water excretion. Cylooxygenase-2 (COX-2) is abundantly expressed in the renal medulla and its expression along with urinary PGE2 excretion is highly induced by chronic salt loading. Factors involved in high salt-induced COX-2 expression in the renal medulla include the hypertonicity, fluid shear stress (FSS), and hypoxia-inducible factor-1 alpha (HIF-1 alpha)...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27811445/a-retrospective-analysis-of-blood-gases-with-two-different-insulin-infusion-protocols-in-patients-undergoing-cardiovascular-surgery
#18
S M Kuskonmaz, Ö Kurtipek, M E Aydın, M E Erbatur, M Alkan, Y Ünal, M Arslan
AIM: Intraoperative blood glucose concentration is known to be an independent risk factor for morbidity and mortality in patients undergoing cardiovascular surgery. Arterial blood gas analysis is an important investigation to monitor the acid-base balance and gas exchange in these patients. Hyperglycemia leads to a series of metabolic changes which affect acid-base balance and serum electrolytes. In this study, we aimed to look into the effect of glycemic control on arterial blood gas parameters, serum electrolytes, and hemoglobin (Hb)...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27810276/-peritoneal-equilibration-test-conventional-versus-adapted-preliminary-study
#19
Ariane Zaloszyc, Claus Peter Schmitt, Betti Schaefer, Armelle Doutey, Joëlle Terzic, Soraya Menouer, Laetitia Higel, Michel Fischbach
Conventional automated peritoneal dialysis (APD) is prescribed as a repetition of cycles with the same dwell time and the same fill volume. Water and sodium balance remains a common problem among patients on peritoneal dialysis. More recently, adapted automated peritoneal dialysis was described, as a combination of short dwells with a low volume, in order to enhance ultrafiltration, followed by long dwells with a large fill volume to favor solute removal. We performed a preliminary crossover study on 4 patients...
October 31, 2016: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/27804272/how-strongly-does-appetite-counter-weight-loss-quantification-of-the-feedback-control-of-human-energy-intake
#20
David Polidori, Arjun Sanghvi, Randy J Seeley, Kevin D Hall
OBJECTIVE: To quantify the feedback control of energy intake in response to long-term covert manipulation of energy balance in free-living humans. METHODS: A validated mathematical method was used to calculate energy intake changes during a 52-week placebo-controlled trial in 153 patients treated with canagliflozin, a sodium glucose co-transporter inhibitor that increases urinary glucose excretion, thereby resulting in weight loss without patients being directly aware of the energy deficit...
November 2016: Obesity
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