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sodium disturbes

Bernd R Gardill, Ricardo E Rivera-Acevedo, Ching-Chieh Tung, Mark Okon, Lawrence P McIntosh, Filip Van Petegem
Voltage-gated sodium channels (NaV ) are responsible for the rapid depolarization of many excitable cells. They readily inactivate, a process where currents diminish after milliseconds of channel opening. They are also targets for a multitude of disease-causing mutations, many of which have been shown to affect inactivation. A cluster of disease mutations, linked to Long-QT and Brugada syndromes, is located in a C-terminal EF-hand like domain of NaV 1.5, the predominant cardiac sodium channel isoform. Previous studies have suggested interactions with the III-IV linker, a cytosolic element directly involved in inactivation...
March 14, 2018: Scientific Reports
Eva Nüsken, Jörg Dötsch, Lutz T Weber, Kai-Dietrich Nüsken
Chronic kidney disease affects more than 10% of the population. Programming studies have examined the interrelationship between environmental factors in early life and differences in morbidity and mortality between individuals. A number of important principles has been identified, namely permanent structural modifications of organs and cells, long-lasting adjustments of endocrine regulatory circuits, as well as altered gene transcription. Risk factors include intrauterine deficiencies by disturbed placental function or maternal malnutrition, prematurity, intrauterine and postnatal stress, intrauterine and postnatal overnutrition, as well as dietary dysbalances in postnatal life...
2018: Frontiers in Pediatrics
Mohammed Qadori, Elmira Flem, Terese Bekkevold, Henrik Døllner, Ann Marit Gilje, Astrid Rojahn, Ketil Størdal
AIM: Using routine blood sampling in a gastroenteritis diagnostic work-up is debatable. This study examined the relationship between the severity of acute gastroenteritis and blood test abnormalities. METHODS: We prospectively enrolled children under five years referred for outpatient or inpatient management for gastroenteritis from February 2014 to April 2016. The four study hospitals cared for 30% of Norwegian children. The severity of gastroenteritis was assessed using Vesikari scores...
March 13, 2018: Acta Paediatrica
Xinghua Gao, Qiuhua Cao, Yan Cheng, Dandan Zhao, Zhuo Wang, Hongbao Yang, Qijin Wu, Linjun You, Yue Wang, Yanting Lin, Xianjing Li, Yun Wang, Jin-Song Bian, Dongdong Sun, Lingyi Kong, Lutz Birnbaumer, Yong Yang
Chronic stress is known to promote inflammatory bowel disease (IBD), but the underlying mechanism remains largely unresolved. Here, we found chronic stress to sensitize mice to dextran sulfate sodium (DSS)-induced colitis; to increase the infiltration of B cells, neutrophils, and proinflammatory ly6Chi macrophages in colonic lamina propria; and to present with decreased thymus and mesenteric lymph node (MLN) coefficients. Circulating total white blood cells were significantly increased after stress, and the proportion of MLN-associated immune cells were largely changed...
March 12, 2018: Proceedings of the National Academy of Sciences of the United States of America
Rainer U Pliquett, Arno Noll, Richard Ibe, Alexandra Katz, Charlotte Ackmann, Alexandra Schreiber, Matthias Girndt
BACKGROUND: Here, we report a case of central pontine demyelinization in a type-2 diabetes patient with hyperglycemia after a binge-eating attack in the absence of a relevant hyponatremia. CASE PRESENTATION: A 55-year-old, male type-2 diabetic patient with liver cirrhosis stage Child-Pugh B was admitted due to dysmetria of his right arm, gait disturbance, dizziness, vertigo, and polyuria, polydipsia after a binge-eating attack of sweets (a whole fruit cake and 2 Liters of soft drinks)...
March 12, 2018: BMC Endocrine Disorders
Clara Serna Muñoz, Amparo Pérez Silva, Francisco Solano, María Teresa Castells, Ascensión Vicente, Antonio José Ortiz Ruiz
The objective of this study was to determine whether the use of the most commonly prescribed antibiotics and non-steroidal anti-inflammatory drugs in childhood could disturb enamel mineralization. Forty-two Swiss mice were divided into seven groups: controls; amoxicillin; amoxicillin/clavulanate; erythromycin; acetaminophen; ibuprofen and celecoxib, to inhibit cyclooxygenase 2 (COX2). SEM-EDX analysis was conducted on all cusps of the third molars. Calcium (Ca), phosphorus (P), aluminum, potassium, sodium, magnesium and chlorine were quantified...
March 7, 2018: Scientific Reports
Julia Wijkström, Channa Jayasumana, Rajeewa Dassanayake, Nalin Priyawardane, Nimali Godakanda, Sisira Siribaddana, Anneli Ring, Kjell Hultenby, Magnus Söderberg, Carl-Gustaf Elinder, Annika Wernerson
In Sri Lanka, an endemic of chronic kidney disease of unknown origin (CKDu) is affecting rural communities. The endemic has similarities with Mesoamerican Nephropathy (MeN) in Central America, however it has not yet been clarified if the endemics are related diagnostic entities. We designed this study of kidney biopsies from patients with CKDu in Sri Lanka to compare with MeN morphology. Eleven patients with CKDu were recruited at the General Hospital, Polonnaruwa, using similar inclusion and exclusion criteria as our previous MeN studies...
2018: PloS One
Yingli Jia, Jinzhao He, Liang Wang, Limin Su, Lei Lei, Wei Huang, Xiaoqiang Geng, Shun Zhang, Xiaolu Meng, Hong Zhou, Baoxue Yang
BACKGROUND/AIMS: A sodium-glucose co-transporter-2 inhibitor dapagliflozin is widely used for lowering blood glucose and its usage is limited in type 2 diabetes mellitus patients with moderate renal impairment. As its effect on kidney function is discrepant and complicated, the aim of this study is to determine the effect of dapagliflozin on the progression of diabetic nephropathy and related mechanisms. METHODS: Twelve-week-old male C57BL/6 wild-type and db/db mice were treated with vehicle or 1 mg/kg dapagliflozin for 12 weeks...
February 23, 2018: Cellular Physiology and Biochemistry
Dong-Bo Ding, Liang-Liang Fan, Zhen Xiao, Hao Huang, Ya-Qin Chen, Shuai Guo, Zhong-Hua Liu, Rong Xiang
Background: Sudden cardiac death (SCD) occurs in a broad spectrum of cardiac pathologies and is an important cause of mortality in the general population. Idiopathic ventricular fibrillation (IVF) is a rare but important factor resulting in SCD. It is diagnosed in a resuscitated cardiac arrest victim underlying unknown cause, with documented ventricular fibrillation. Previous studies have demonstrated that mutations in dipeptidyl aminopeptidase-like protein-6 (DPP6) and cardiac sodium channel Nav1...
February 20, 2018: QJM: Monthly Journal of the Association of Physicians
Christoph Kopp, Peter Linz, Carolin Maier, Peter Wabel, Matthias Hammon, Armin M Nagel, Daniela Rosenhauer, Stephan Horn, Michael Uder, Friedrich C Luft, Jens Titze, Anke Dahlmann
Long-term elevated blood sugar levels result in tissue matrix compositional changes in patients with diabetes mellitus type 2 (T2DM). We hypothesized that hemodialysis patients with T2DM might accumulate more tissue sodium than control hemodialysis patients. To test this,23 Na magnetic resonance imaging (23 Na MRI) was used to estimate sodium in skin and muscle tissue in hemodialysis patients with or without T2DM. Muscle fat content was estimated by1 H MRI and tissue sodium content by23 Na MRI pre- and post-hemodialysis in ten hemodialysis patients with T2DM and in 30 matched control hemodialysis patients...
February 15, 2018: Kidney International
Agnieszka Ścibior, Dorota Gołębiowska, Agnieszka Adamczyk, Joanna Kurus, Magdalena Staniszewska, Ilona Sadok
The impact of vanadium (V) and magnesium (Mg) applied as sodium metavanadate (SMV, 0.125 mg V/ml) and magnesium sulfate (MS, 0.06 mg Mg/ml) on oxidative stress markers in bone of male Wistar rats was investigated. Some of them were also measured in the liver, e.g. l-ascorbic acid (hepatic L-AA). Additionally, relationships between selected indices determined in bone were examined. SMV alone (Group II) did not significantly alter the level of TBARS and the activity of SOD, compared with the control (Group I), but it slightly reduced the GR activity (by 13%) and the L-AA level (by 15...
February 14, 2018: Chemico-biological Interactions
Aleksandar Stojic, Jovana Bojcevski, Sarah K Williams, Ricarda Diem, Richard Fairless
Disturbances in the nodes of Ranvier are an early phenomenon in many CNS disorders, including the autoimmune demyelinating disease multiple sclerosis (MS). Using an animal model of optic neuritis, a common early symptom of MS, we have investigated nodal and paranodal compartments in the optic nerve during disease progression. Both nodes and paranodes, as identified by immunohistochemistry against sodium channels (Nav) and Caspr, respectively, were observed to increase in length during the late induction phase of the disease, prior to onset of the demyelination and immune cell infiltration characteristic of optic neuritis...
February 10, 2018: Journal of Neuropathology and Experimental Neurology
Zhenyang Yu, Jing Zhang, Meifang Hou
The redox state of NADH/NADPH balance (nicotinamide adenine dinucleotide/nicotinamide adenine dinucleotide phosphate) is crucial in cellular homeostasis. Recent studies reported that sodium halide ions (NaX, X = F-, Cl-, Br- and I-) stimulated NAD(P)H in Vibrio fischeri (VF). However, it remained unanswered whether this pattern applied in salts with other cations, e.g., K+, Mg2+ and Ca2+, whose aquatic concentrations were increased by anthropogenic activities and climate change. Currently, VF were incubated with chloride salts, including KCl, MgCl2 and CaCl2, and effects were measured in a time-dependent fashion...
February 7, 2018: Chemosphere
Fien De Leersnyder, Elisabeth Peeters, Hasna Djalabi, Valérie Vanhoorne, Bernd Van Snick, Ke Hong, Stephen Hammond, Angela Yang Liu, Eric Ziemons, Chris Vervaet, Thomas De Beer
A calibration model for in-line API quantification based on near infrared (NIR) spectra collection during tableting in the tablet press feed frame was developed and validated. First, the measurement set-up was optimised and the effect of filling degree of the feed frame on the NIR spectra was investigated. Secondly, a predictive API quantification model was developed and validated by calculating the accuracy profile based on the analysis results of validation experiments. Furthermore, based on the data of the accuracy profile, the measurement uncertainty was determined...
February 1, 2018: Journal of Pharmaceutical and Biomedical Analysis
Pablo Garrido-Gil, Ana I Rodriguez-Perez, Antonio Dominguez-Meijide, Maria J Guerra, Jose L Labandeira-Garcia
The exact mechanism of gut dysfunction in Parkinson's disease and, conversely, the role of gut pathology in brain dopaminergic degeneration are controversial. We investigated the effects of nigral lesions on the colonic neurotransmission, the effect of gut inflammation on the nigrostriatal dopaminergic function, and the possible involvement of the vagus nerve and the local renin-angiotensin system (RAS). Nigrostriatal dopamine depletion was performed by bilateral injection 6-hydroxydopamine, and gut inflammation was induced by dextran sulfate sodium salt treatment in rats and mice, respectively, with or without vagal disruption...
February 5, 2018: Molecular Neurobiology
Seiji Hosokawa, Satoru Takebayashi, Goro Takahashi, Jun Okamura, Hiroyuki Mineta
BACKGROUND: Photodynamic therapy (PDT) is a minimally invasive treatment for malignant tumors. The aim of this study was to determine the efficacy of PDT in patients with head and neck squamous cell carcinoma (HNSCC). METHODS: Thirty-three patients with HNSCC were treated with porfimer sodium-mediated PDT followed by intraoperative light activation at 630 nm via fiber optic microlens delivered after 48 hours of injection. RESULTS: The complete response (CR) rate was 72...
February 5, 2018: Lasers in Surgery and Medicine
Atsumi Miyagawa, Sawako Tatsumi, Wako Takahama, Osamu Fujii, Kenta Nagamoto, Emi Kinoshita, Kengo Nomura, Kayo Ikuta, Toru Fujii, Ai Hanazaki, Ichiro Kaneko, Hiroko Segawa, Ken-Ichi Miyamoto
Circulating inorganic phosphate exhibits a remarkable daily oscillation based on food intake. In humans and rodents, the daily oscillation in response to food intake may be coordinated to control the intestinal absorption, renal excretion, cellular shifts, and extracellular concentration of inorganic phosphate. However, mechanisms regulating the resulting oscillation are unknown. Here we investigated the roles of the sodium phosphate cotransporter SLC34 (Npt2) family and nicotinamide phosphoribosyltransferase (Nampt) in the daily oscillation of plasma inorganic phosphate levels...
February 1, 2018: Kidney International
Baxter Hepburn Kachingwe, Yow-Shieng Uang, Tsurng-Juhn Huang, Li-Hsuan Wang, Shwu-Jiuan Lin
ent-16-Oxobeyeran-19-N-methylureido (NC-8) is a recently synthesized derivative of isosteviol that showed anti-hepatitis B virus (HBV) activity by disturbing replication and gene expression of the HBV and by inhibiting the host toll-like receptor 2/nuclear factor-κB signaling pathway. To study its pharmacokinetics as a part of the drug development process, a highly sensitive, rapid, and reliable liquid chromatography tandem mass spectrometry (LC-MS/MS) method was developed and validated for determining NC-8 in rat plasma...
January 2018: Journal of Food and Drug Analysis
A V Vlasenko, V I Mikhnovich, A V Machanskaya, A V Pogodina, O V Bugun, L V Rychkova, T A Astakhova
AIM: The objective of the present study was the improvement of the effectiveness of medical rehabilitation of the children presenting with the disturbances of the locomotor function using a «LymphaVision» apparatus for the selective electrical stimulation. MATERIALS AND METHODS: The study included 42 patients with movement disorders divided into two groups depending on the method of non-drug therapy. The main group was comprised of the patients receiving the treatment by electrical stimulation with the use of the «LymphaVision» apparatus while the remaining patients made up the group of comparison (they were treated with by means of Vermel electrophoresis with the use of a 1% sodium bromide solution)...
December 28, 2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
Mehdi Goudarzi, Iman Fatemi, Amir Siahpoosh, Seyed Hashem Sezavar, Esrafil Mansouri, Saeed Mehrzadi
Ellagic acid (EA) is a phenolic constituent in certain fruits and nuts with wide range of biological activities, including potent antioxidant, antidiabetic, anti-inflammatory, anticancer and antimutagen properties. The aim of this study was to evaluate the effect of EA on sodium arsenic (SA)-induced cardio- and hematotoxicity in rats. Animals were divided into five groups. The first group was used as control. Group 2 was orally treated with sodium arsenite (SA, 10 mg/kg) for 21 days. Group 3 was orally treated with EA (30 mg/kg) for 14 days...
January 30, 2018: Cardiovascular Toxicology
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