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Sodium disorders

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https://www.readbyqxmd.com/read/28433711/mdh2-is-an-rna-binding-protein-involved-in-downregulation-of-sodium-channel-scn1a-expression-under-seizure-condition
#1
Yong-Hong Chen, Shu-Jing Liu, Mei-Mei Gao, Tao Zeng, Guo-Wang Lin, Na-Na Tan, Hui-Ling Tang, Ping Lu, Tao Su, Wei-Wen Sun, Long-Chang Xie, Yong-Hong Yi, Yue-Sheng Long
Voltage-gated sodium channel α-subunit type I (NaV1.1, encoded by SCN1A gene) plays a critical role in the excitability of brain. Downregulation of SCN1A expression is associated with epilepsy, a common neurological disorder characterized by recurrent seizures. Here we reveal a novel role of malate dehydrogenase 2 (MDH2) in the posttanscriptional regulation of SCN1A expression under seizure condition. We identified that MDH2 was an RNA binding protein that could bind two of the four conserved regions in the 3' UTRs of SCN1A...
April 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28424564/new-developments-in-the-management-of-narcolepsy
#2
REVIEW
Vivien C Abad, Christian Guilleminault
Narcolepsy is a life-long, underrecognized sleep disorder that affects 0.02%-0.18% of the US and Western European populations. Genetic predisposition is suspected because of narcolepsy's strong association with HLA DQB1*06-02, and genome-wide association studies have identified polymorphisms in T-cell receptor loci. Narcolepsy pathophysiology is linked to loss of signaling by hypocretin-producing neurons; an autoimmune etiology possibly triggered by some environmental agent may precipitate hypocretin neuronal loss...
2017: Nature and Science of Sleep
https://www.readbyqxmd.com/read/28420122/the-effect-of-salt-intake-and-potassium-supplementation-on-serum-gastrin-levels-in-chinese-adults-a-randomized-trial
#3
Yuan-Yuan Wang, Wen-Wen He, Yan-Chun Liu, Yi-Feng Lin, Lu-Fei Hong
Excess dietary salt is strongly correlated with cardiovascular disease, morbidity, and mortality. Conversely, potassium likely elicits favorable effects against cardiovascular disorders. Gastrin, which is produced by the G-cells of the stomach and duodenum, can increase renal sodium excretion and regulate blood pressure by acting on the cholecystokinin B receptor. The aim of our study was to assess the effects of altered salt and potassium supplementation on serum gastrin levels in humans. A total of 44 subjects (38-65 years old) were selected from a rural community in northern China...
April 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28417851/nuclear-medicine-techniques-in-pediatric-bone-imaging
#4
REVIEW
Laura A Drubach
An important mandate when imaging pediatric patients is the reduction of radiation exposure to the lowest possible level consistent with good quality diagnostic imaging, so individual selection of radiopharmaceutical dosage and imaging technique is essential. Although the logistics of image acquisition and the approach to interpretation mirror the more common use in adults, the challenges of imaging young children typically require greater attention to patient preparation, positioning, and supervision during imaging, with the use of parental or family engagement in the procedure, gentle restraint, and occasionally the need for sedation...
May 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28414668/autoimmune-diabetes-presented-with-diabetic-ketoacidosis-induced-by-immunotherapy-in-an-adult-with-melanoma
#5
A A Alzenaidi, J Dendy, L Rejjal
INTRODUCTION: Immunotherapy has been approved for treatment of melanoma. Autoimmune endocrinopathies have been reported in trials involving immunotherapy but autoimmune diabetes has not been definitively linked to them. Here we describe a case of autoimmune diabetes presenting with DKA after receiving combined immunotherapy with anti-CTLA4 and anti-PD1 monoclonal antibodies. CASE: A 47year old gentleman with metastatic melanoma presented to our institution with confusion, abdominal pain and decreased oral intake...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28411969/valproate-induced-hyperammonemic-encephalopathy-in-general-hospital-patients-with-one-or-more-psychiatric-disorders
#6
Chandani Lewis, George E Tesar, Roman Dale
BACKGROUND: Divalproex sodium/valproic acid (VPA) is an antiepileptic drug approved for use in epilepsy and bipolar disorder. Valproate-induced hyperammonemia occurs in up to 50% of VPA-treated patients, some of whom may become encephalopathic. Valproate-induced hyperammonemic encephalopathy (VHE) is thought to be rare, and for a variety of reasons, the diagnosis requires a high index of suspicion. OBJECTIVE: The study's goals are to determine how common VHE is, and the quality of treatment provided when diagnosed...
February 24, 2017: Psychosomatics
https://www.readbyqxmd.com/read/28411148/behavioural-characterization-of-ankyring-deficient-mice-a-model-for-ank3-related-disorders
#7
I M van der Werf, D Van Dam, S Missault, B Yalcin, P P De Deyn, G Vandeweyer, R F Kooy
ANK3 encodes AnkyrinG (AnkG), a member of the Ankyrin family that is expressed in several different isoforms in many tissues. A unique serine-rich domain and tail domain in the two largest isoforms of AnkG (270 and 480kDa), restrict AnkG to the axon initial segment and nodes of Ranvier of myelinated neurons. At these sites, AnkG is a master regulator, coordinating the strict clustering of components necessary for proper action potential initiation and propagation along the axon. These components include voltage-gated sodium channels, potassium channels and members of the L1 cell adhesion molecule family...
April 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28410751/mizagliflozin-a-novel-selective-sglt1-inhibitor-exhibits-potential-in-the-amelioration-of-chronic-constipation
#8
Toshihiro Inoue, Masaaki Takemura, Nobuhiko Fushimi, Yoshikazu Fujimori, Tomoya Onozato, Takao Kurooka, Tetsuya Asari, Hiroo Takeda, Mamoru Kobayashi, Hironori Nishibe, Masayuki Isaji
Chronic constipation is a highly common functional gastrointestinal disorder that adversely affects patient quality of life. At present, limited therapeutic options are available for the treatment of chronic constipation, which indicates the need for new therapeutic agents. Herein, we report the potential of mizagliflozin, a novel selective sodium glucose co-transporter 1 (SGLT1) inhibitor, for the amelioration of chronic constipation. Mizagliflozin's inhibitory activity against SGLTs was evaluated by an in vitro assay of cells transiently expressing SGLTs...
April 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28405779/multidirectional-inhibition-of-cortico-hippocampal-neurodegeneration-by-kolaviron-treatment-in-rats
#9
Olayemi Joseph Olajide, Nnaemeka Tobechukwu Asogwa, Blessing Oluwapelumi Moses, Christiana Bidemi Oyegbola
Earliest signs of neurodegenerative cascades in the course of Alzheimer's disease (AD) are seen within the prefrontal cortex (PFC) and hippocampus, with pathological evidences in both cortical structures correlating with manifestation of behavioural and cognitive deficits. Despite the enormous problems associated with AD's clinical manifestations in sufferers, therapeutic advances for the disorder are still very limited. Therefore, this study examined cortico-hippocampal microstructures in models of AD, and evaluated the possible beneficial roles of kolaviron (Kv)-a biflavonoid complex in rats...
April 13, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28404987/interleukin-33-regulates-intestinal-inflammation-by-modulating-macrophages-in-inflammatory-bowel-disease
#10
Dong Hyuk Seo, Xiumei Che, Min Seob Kwak, Soochan Kim, Jae Hyeon Kim, Hyun Woo Ma, Da Hye Kim, Tae Il Kim, Won Ho Kim, Seung Won Kim, Jae Hee Cheon
Interleukin 33 (IL-33) that signals through the ST2 receptor has emerged as a critical modulator in several inflammatory disorders, including inflammatory bowel disease (IBD). However, the precise mechanisms by which IL-33 modulates IBD are controversial. The aim of this study was thus to clarify the role of IL-33 in IBD. The plasma levels of IL-33 were significantly decreased, but soluble ST2 levels were increased in patients with IBD compared to healthy individuals. Moreover, IL-33 restored goblet cell numbers and induced macrophage switching from the M1 to the M2 phenotype...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28403850/rationale-and-design-of-a-multicenter-placebo-controlled-double-blind-randomized-trial-to-evaluate-the-effect-of-empagliflozin-on-endothelial-function-the-emblem-trial
#11
RANDOMIZED CONTROLLED TRIAL
Atsushi Tanaka, Michio Shimabukuro, Yosuke Okada, Isao Taguchi, Minako Yamaoka-Tojo, Hirofumi Tomiyama, Hiroki Teragawa, Seigo Sugiyama, Hisako Yoshida, Yasunori Sato, Atsushi Kawaguchi, Yumi Ikehara, Noritaka Machii, Tatsuya Maruhashi, Kosuke R Shima, Toshinari Takamura, Yasushi Matsuzawa, Kazuo Kimura, Masashi Sakuma, Jun-Ichi Oyama, Teruo Inoue, Yukihito Higashi, Shinichiro Ueda, Koichi Node
BACKGROUND: Type 2 diabetes mellitus (T2DM) is characterized by systemic metabolic abnormalities and the development of micro- and macrovascular complications, resulting in a shortened life expectancy. A recent cardiovascular (CV) safety trial, the EMPA-REG OUTCOME trial, showed that empagliflozin, a sodium glucose cotransporter 2 (SGLT2) inhibitor, markedly reduced CV death and all-cause mortality and hospitalization for heart failure in patients with T2DM and established CV disease (CVD)...
April 12, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28400554/essential-turmeric-oils-enhance-anti-inflammatory-efficacy-of-curcumin-in-dextran-sulfate-sodium-induced-colitis
#12
Shusuke Toden, Arianne L Theiss, Xuan Wang, Ajay Goel
Turmeric has been used as a medicinal herb for thousands of years for treatment of various disorders. Although curcumin is the most studied active constituents of turmeric, accumulating evidence suggests that other components of turmeric have additional anti-inflammatory and anti-tumorigenic properties. Herein, we investigated anti-inflammatory efficacy and associated gene expression alterations of a specific, curcumin preparation containing essential turmeric oils (ETO-curcumin) in comparison to standard curcumin at three specific doses (0, 5, 25 or 50 mg/kg), in an animal model of dextran sodium sulfate (DSS)-induced colitis...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28396904/prognosis-of-patients-with-implanted-pacemakers-in-4%C3%A2-year-follow-up-impact-of-right-ventricular-pacing-site
#13
K Krzemień-Wolska, A Tomasik, E Nowalany-Kozielska, W Jacheć
BACKGROUND: Pacing remains the method of choice for treatment of cardiac electrical conduction disorders. This study examined the interrelationship between the site of the right ventricular lead tip and patient prognosis in association with other cardiovascular risk factors over a 4‑year follow-up period. PATIENTS AND METHODS: The study comprised 450 consecutive patients (223 women; aged 69.16 ± 9.63 years) who had their first SSI or DDD pacemaker implanted for typical indications...
April 10, 2017: Herz
https://www.readbyqxmd.com/read/28394115/p2-orthorhombic-na0-7-mn1-xlix-o2-y-as-cathode-materials-for-na-ion-batteries
#14
Mi-Sook Kwon, Shin Gwon Lim, Yuwon Park, Sang-Min Lee, Kyung Yoon Chung, Tae Joo Shin, Kyu Tae Lee
P2-type manganese-based oxide materials have received attention as promising cathode materials for sodium ion batteries because of their low cost and high capacity, but their reaction and failure mechanisms are not yet fully understood. In this study, the reaction and failure mechanisms of β-Na0.7[Mn1-xLix]O2+y (x = 0.02, 0.04, 0.07, and 0.25), α-Na0.7MnO2+y, and β-Na0.7MnO2+z are compared to clarify the dominant factors influencing their electrochemical performances. Using a quenching process with various amounts of a Li dopant, the Mn oxidation state in β-Na0...
April 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28393593/a-study-of-hyponatremia-in-acute-encephalitis-syndrome-a-prospective-study-from-a-tertiary-care-center-in-india
#15
Usha Kant Misra, Jayantee Kalita, Rajesh Kumar Singh, Sanjeev Kumar Bhoi
PURPOSE: To evaluate the frequency and causes of hyponatremia in acute encephalitis syndrome (AES) and its effect on outcome. PATIENTS AND METHODS: Consecutive patients with AES were subjected to neurological evaluation including Glasgow Coma Scale, focal weakness, movement disorder, and reflex changes. The etiology of AES was based on blood and cerebrospinal fluid enzyme-linked immunosorbent assay and polymerase chain reaction. We have categorized patients into neurological or systemic AES...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28392953/acute-psychosis-as-main-manifestation-of-central-pontine-myelinolysis
#16
Mangala Gopal, Melvin Parasram, Harsh Patel, Chike Ilorah, Hrachya Nersesyan
Central pontine myelinolysis (CPM) is an acute demyelinating neurological disorder affecting primarily the central pons and is frequently associated with rapid correction of hyponatremia. Common clinical manifestations of CPM include spastic quadriparesis, dysarthria, pseudobulbar palsy, and encephalopathy of various degrees; however, coma, "locked-in" syndrome, or death can occur in most severe cases. Rarely, CPM presents with neuropsychiatric manifestations, such as personality changes, acute psychosis, paranoia, hallucinations, or catatonia, typically associated with additional injury to the brain, described as extrapontine myelinolysis (EPM)...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28389149/discovery-of-selective-orally-bioavailable-n-linked-arylsulfonamide-nav1-7-inhibitors-with-pain-efficacy-in-mice
#17
Anthony J Roecker, Melissa Egbertson, Kristen L G Jones, Robert Gomez, Richard L Kraus, Yuxing Li, Amy Jo Koser, Mark O Urban, Rebecca Klein, Michelle Clements, Jacqueline Panigel, Christopher Daley, Jixin Wang, Eleftheria N Finger, John Majercak, Vincent Santarelli, Irene Gregan, Matthew Cato, Tracey Filzen, Aneta Jovanovska, Ying-Hong Wang, Deping Wang, Leo A Joyce, Edward C Sherer, Xuanjia Peng, Xiu Wang, Haiyan Sun, Paul J Coleman, Andrea K Houghton, Mark E Layton
The voltage-gated sodium channel Nav1.7 is a genetically validated target for the treatment of pain with gain-of-function mutations in man eliciting a variety of painful disorders and loss-of-function mutations affording insensitivity to pain. Unfortunately, drugs thought to garner efficacy via Nav1 inhibition have undesirable side effect profiles due to their lack of selectivity over channel isoforms. Herein we report the discovery of a novel series of orally bioavailable arylsulfonamide Nav1.7 inhibitors with high levels of selectivity over Nav1...
March 30, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28388932/the-efficacy-of-sodium-benzoate-as-an-adjunctive-treatment-in-early-psychosis-cadence-bz-study-protocol-for-a-randomized-controlled-trial
#18
Alex Ryan, Andrea Baker, Frances Dark, Sharon Foley, Anne Gordon, Sean Hatherill, Stephen Stathis, Sukanta Saha, George Bruxner, Martin Beckman, Drew Richardson, Michael Berk, Olivia Dean, John McGrath, Cadence Working Group, James Scott
BACKGROUND: Psychotic disorders affect up to 3% of the population and are often chronic and disabling. Innovation in the pharmacological treatment of psychosis has remained stagnant in recent decades. In order to improve outcomes for those with psychotic disorders, we present a protocol for the trial of a common food preservative, sodium benzoate, as an adjunctive treatment in early psychosis. METHODS: Persons experiencing early psychosis (n = 160) will be recruited through hospitals and community mental health services in Queensland, Australia...
April 7, 2017: Trials
https://www.readbyqxmd.com/read/28387957/molecular-interaction-of-anti-diabetic-drugs-with-acetylcholinesterase-and-sodium-glucose-co-transporter-2
#19
Shazi Shakil
Type 2 Diabetes Mellitus (T2DM) and Alzheimer's disease (AD) are the two disorders which are known to share pertinent pathological and therapeutic links. Sodium glucose co-transporter- (SGLT2) and Acetylcholinesterase (AChE) are established inhibition targets for T2DM and AD treatments, respectively. Reports suggest that anti-diabetic drugs could be used for AD treatment also. The present study used molecular docking by Autodock4.2 using our "Click-By-Click"-protocol, Ligplot1.4.3 and 'change in accessible surface area (ΔASA)-calculations' to investigate the binding of two investigational anti-diabetic drugs, Ertugliflozin and Sotagliflozin to an established target (SGLT2) and a research target (human brain AChE)...
April 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28384965/anaesthetic-management-in-brugada-syndrome-a-case-report
#20
Sulochana Dash, Shanmugam Pragathee
Brugada Syndrome (BS) is a rare congenital cardiac disorder involving cardiac sodium channels, sometimes presenting with ventricular arrhythmia and sudden cardiac death. Here, we are reporting a case of BS who presented for laparotomy due to obstructed inguinal hernia which was managed satisfactorily with combined epidural and general anaesthesia without any complications.
February 2017: Journal of Clinical and Diagnostic Research: JCDR
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