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https://www.readbyqxmd.com/read/29321483/extracellular-total-electrolyte-concentration-imaging-for-electrical-brain-stimulation-ebs
#1
Saurav Z K Sajib, Mun Bae Lee, Hyung Joong Kim, Eung Je Woo, Oh In Kwon
Techniques for electrical brain stimulation (EBS), in which weak electrical stimulation is applied to the brain, have been extensively studied in various therapeutic brain functional applications. The extracellular fluid in the brain is a complex electrolyte that is composed of different types of ions, such as sodium (Na+), potassium (K+), and calcium (Ca+). Abnormal levels of electrolytes can cause a variety of pathological disorders. In this paper, we present a novel technique to visualize the total electrolyte concentration in the extracellular compartment of biological tissues...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29318784/divalproex-sodium-modulates-nuclear-localization-of-ataxin-3-and-prevents-cellular-toxicity-caused-by-expanded-ataxin-3
#2
Zi-Jian Wang, Aoife Hanet, Daniel Weishäupl, Inês M Martins, Anna S Sowa, Olaf Riess, Thorsten Schmidt
BACKGROUND & AIMS: Spinocerebellar ataxia type 3 (SCA3), also known as Machado-Joseph disease (MJD), is an autosomal dominantly inherited neurodegenerative disorder and the most common form of SCA worldwide. It is caused by the expansion of a polyglutamine (polyQ) tract in the ataxin-3 protein. Nuclear localization of the affected protein is a key event in the pathology of SCA3 via affecting nuclear organization, transcriptional dysfunction, and seeding aggregations, finally causing neurodegeneration and cell death...
January 9, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29318638/voltage-gated-sodium-channels-nav-igating-the-field-to-determine-their-contribution-to-visceral-nociception
#3
Andelain Erickson, Annemie Deiteren, Andrea M Harrington, Sonia Garcia-Caraballo, Joel Castro, Ashlee Caldwell, Luke Grundy, Stuart M Brierley
Chronic visceral pain, altered motility and bladder dysfunction are common, yet poorly managed symptoms of functional and inflammatory disorders of the gastrointestinal and urinary tracts. Recently, numerous human channelopathies of the voltage-gated sodium (NaV ) channel family have been identified, which induce either painful neuropathies, an insensitivity to pain, or alterations in smooth muscle function. The identification of these disorders, in addition to the recent utilisation of genetically modified NaV mice and specific NaV channel modulators, has shed new light on how NaV channels contribute to the function of neuronal and non-neuronal tissues within the gastrointestinal tract and bladder...
January 9, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29316923/comparative-assessment-of-probiotics-and-monensin-in-the-prophylaxis-of-acute-ruminal-lactic-acidosis-in-sheep
#4
Leonardo Frasson Reis, Rejane Santos Sousa, Francisco Leonardo Costa Oliveira, Frederico Augusto Mazzocca Lopes Rodrigues, Carolina Akiko Sato Cabral Araújo, Enoch Brandão Souza Meira-Júnior, Raimundo Alves Barrêto-Júnior, Clara Satsuki Mori, Antonio Humberto Hamad Minervino, Enrico Lippi Ortolani
BACKGROUND: Acute ruminal lactic acidosis (ARLA) is a major nutritional and metabolic disorder usually characterized by excessive or non-adapted intake of diets rich in nonstructural carbohydrates. Feed additives that regulate the ruminal environment have been used to prevent ARLA, such as ionophores and, more recently, yeast culture. Thus, we aimed to compare the efficacy of a yeast-based culture (Saccharomyces cerevisiae) with that of monensin sodium in the prevention of ARLA in sheep...
January 9, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29305691/the-capos-mutation-in-atp1a3-alters-na-k-atpase-function-and-results-in-auditory-neuropathy-which-has-implications-for-management
#5
Lisbeth Tranebjærg, Nicola Strenzke, Sture Lindholm, Nanna D Rendtorff, Hanne Poulsen, Himanshu Khandelia, Wojciech Kopec, Troels J Brünnich Lyngbye, Christian Hamel, Cecile Delettre, Beatrice Bocquet, Michael Bille, Hanne H Owen, Toke Bek, Hanne Jensen, Karen Østergaard, Claes Möller, Linda Luxon, Lucinda Carr, Louise Wilson, Kaukab Rajput, Tony Sirimanna, Katherine Harrop-Griffiths, Shamima Rahman, Barbara Vona, Julia Doll, Thomas Haaf, Oliver Bartsch, Hendrik Rosewich, Tobias Moser, Maria Bitner-Glindzicz
Cerebellar ataxia, areflexia, pes cavus, optic atrophy and sensorineural hearing impairment (CAPOS) is a rare clinically distinct syndrome caused by a single dominant missense mutation, c.2452G>A, p.Glu818Lys, in ATP1A3, encoding the neuron-specific alpha subunit of the Na+/K+-ATPase α3. Allelic mutations cause the neurological diseases rapid dystonia Parkinsonism and alternating hemiplegia of childhood, disorders which do not encompass hearing or visual impairment. We present detailed clinical phenotypic information in 18 genetically confirmed patients from 11 families (10 previously unreported) from Denmark, Sweden, UK and Germany indicating a specific type of hearing impairment-auditory neuropathy (AN)...
January 5, 2018: Human Genetics
https://www.readbyqxmd.com/read/29305684/an-extraaxially-localized-intrasellar-giant-hydatid-cyst-with-hypophyseal-insufficiency
#6
Gökhan Çavuş, Vedat Açik, Yeliz Çavuş, Emre Bilgin, Yurdal Gezercan, Ali Ihsan Ökten
PURPOSE: A hydatid cyst is a parasitic illness that is caused by the larvae of Echinococcus granulosus. Hydatid cysts occur in the liver in 75% and in the lungs in 15% of cases. Central nervous system involvement is rare (perhaps as low as 1%), and the majority of such cases are observed in children. Headache and vomiting are the most frequently observed symptoms. In patients diagnosed with a hydatid cyst, imaging methods and serologic tests are very important for identifying cranial involvement...
January 5, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29300078/na-vacancy-disordered-p2-na0-67co1-xtixo2-high-energy-and-high-power-cathode-materials-for-sodium-ion-batteries
#7
Seok Mun Kang, Jae-Hyuk Park, Aihua Jin, Young Hwa Jung, Junyoung Mun, Yung-Eun Sung
Although sodium ion batteries (NIBs) have gained wide interest, their poor energy density poses a serious challenge for their practical applications. Therefore, high energy density cathode materials are required for NIBs to enable the utilization of a large amount of reversible Na ions. This study presents a P2-type Na0.67Co1-xTixO2 (x < 0.2) cathode with an extended potential range higher than 4.4 V to present high specific capacity of 166 mAh g-1. A group of P2-type cathodes containing various amounts of Ti is prepared using a facile synthetic method...
January 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29299961/erythromelalgia
#8
Peter Franz Klein-Weigel, Theresa Sophie Volz, Jutta Gisela Richter
Erythromelalgia is a rare syndrome characterized by the intermittent or, less commonly, by the permanent occurrence of extremely painful hyperperfused skin areas mainly located in the distal extremities. Primary erythromelalgia is nowadays considered to be a genetically determined neuropathic disorder affecting SCN9A, SCN10A, and SCN11A coding for NaV1.7, NaV1.8, and NaV1.9 neuronal sodium channels. Secondary forms might be associated with myeloproliferative disorders, connective tissue disease, cancer, infections, and poisoning...
January 4, 2018: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/29299437/the-protective-effect-of-hydroalcoholic-extract-of-ginger-zingiber-officinale-rosc-against-iron-induced-functional-and-histological-damages-in-rat-liver-and-kidney
#9
Firouzeh Gholampour, Fatemeh Behzadi Ghiasabadi, Seyed Mohammad Owji, Jaafar Vatanparast
Objective: Iron overload in the body is related with toxic effects and threatens the health. The aim of this study was to evaluate the protective role of hydroalcoholic extract of ginger (Zingiber officinale) against ferrous sulfate-induced hepatic and renal functional disorders and histological damages in rats. Materials and Methods: The rats were divided into four groups (n=7): Sham, Sham + G.E (ginger extract, 400 mg/kg/day for 14 days), FS (ferrous sulfate, 30 mg/kg/day for 14 days), FS+G...
November 2017: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/29296046/the-association-of-serum-leptin-levels-with-metabolic-diseases
#10
REVIEW
Jen-Pi Tsai
Leptin is a 167-amino-acid protein released by white adipose tissue and encoded by the obese gene. It has a role as a negative regulator of appetite control through sending a satiety signal to act on receptors within the hypothalamus. At normal levels, leptin can exert its effects on weight regulation according to white fat mass, induce sodium excretion, maintain vascular tone, and repair the myocardium. Beyond these effects, elevated serum leptin levels have been implicated in the pathogenesis of metabolic syndrome, diabetes mellitus, hypertension, and multiple cardiovascular diseases...
October 2017: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/29295830/treatment-of-severe-hyponatremia
#11
Richard H Sterns
Patients with severe (serum sodium ≤120 mEq/L), symptomatic hyponatremia can develop life-threatening or fatal complications from cerebral edema if treatment is inadequate and permanent neurologic disability from osmotic demyelination if treatment is excessive. Unfortunately, as is true of all electrolyte disturbances, there are no randomized trials to guide the treatment of this challenging disorder. Rather, therapeutic decisions rest on physiologic principles, animal models, observational studies, and single-patient reports...
January 2, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29289532/zinc-deficiency-via-a-splice-switch-in-zinc-importer-zip2-slc39a2-causes-cystic-fibrosis-associated-muc5ac-hypersecretion-in-airway-epithelial-cells
#12
Shunsuke Kamei, Haruka Fujikawa, Hirofumi Nohara, Keiko Ueno-Shuto, Kasumi Maruta, Ryunosuke Nakashima, Taisei Kawakami, Chizuru Matsumoto, Yuki Sakaguchi, Tomomi Ono, Mary Ann Suico, Richard C Boucher, Dieter C Gruenert, Toru Takeo, Naomi Nakagata, Jian-Dong Li, Hirofumi Kai, Tsuyoshi Shuto
Airway mucus hyperproduction and fluid imbalance are important hallmarks of cystic fibrosis (CF), the most common life-shortening genetic disorder in Caucasians. Dysregulated expression and/or function of airway ion transporters, including cystic fibrosis transmembrane conductance regulator (CFTR) and epithelial sodium channel (ENaC), have been implicated as causes of CF-associated mucus hypersecretory phenotype. However, the contributory roles of other substances and transporters in the regulation of CF airway pathogenesis remain unelucidated...
December 20, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29285159/amelioration-of-the-dss-induced-colitis-in-mice-by-pretreatment-with-4-4-diaponeurosporene-producing-bacillus-subtilis
#13
Yuchao Jing, Haofei Liu, Wenwen Xu, Qian Yang
Inflammatory bowel disease (IBD) is a chronically relapsing inflammatory disorder of the gastrointestinal tract. Current IBD treatments have poor tolerability and insufficient therapeutic efficacy, thus, alternative therapeutic approaches are required. Recently, a number of dietary supplements have emerged as promising interventions. In the present study oral administration of a carotenoid (4,4'-diaponeurosporene)-producing Bacillus subtilis markedly ameliorated dextran sulfate sodium salt-induced mouse colitis, as demonstrated by a reduction in weight loss and the severity of bleeding, which indicated that 4,4'-diaponeurosporene may have beneficial effects on treatments for colitis...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29285131/effects-of-water-extracts-of-rehmannia-glutinosa-on-antioxidant-system-of-nrf2-in-paraquat-induced-insulin-resistance-diabetic-rat-model
#14
Lei Ren, Yapei Xu, Guijun Qin, Cong Liu, Shoujun Wang
The objective of this study was to observe the effects of water extracts of Rehmannia glutinosa on the antioxidant system of Nrf-2 in diabetic mice induced by paraquat, and to provide the basis for its further development. Thirty male mice were randomly divided into the control group, model group and observation group. The mice in the model group and the observation group were treated with paraquat to induce insulin resistance, with the control group injected with the same volume saline. After the model establishment, the mice in observation group was given 1...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29285091/treatment-of-acute-intermittent-porphyria-during-pregnancy-and-posterior-reversible-encephalopathy-syndrome-after-delivery-a-case-report
#15
Jian Zhang, Yiting Hu, Jimin Zheng, Juncha Gao, Hongtao Hou, Na Liu, Yuzhen Wang
Acute intermittent porphyria (AIP) is a rare inherited disorder of heme metabolism. It has the ability to trigger posterior reversible encephalopathy syndrome (PRES), a rare acute neurologic condition that is characterized by acute neurological symptoms. Pregnancy may induce AIP attacks. The present report describes the case of a pregnant woman with AIP. The patient was treated with heme-arginate during pregnancy and successfully delivered a healthy baby. Following delivery, the patient presented with PRES and experienced generalized seizures...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29277263/genetics-of-human-epilepsies-continuing-progress
#16
Pierre Szepetowski
Numerous epilepsy genes have been identified in the last years, mostly in the (rare) monogenic forms and thanks to the increased availability and the decreased cost of next-generation sequencing approaches. Besides the somehow expected group of epilepsy genes encoding various ion channel subunits (e.g. sodium or potassium channel subunits, or GABA receptors, or glutamate-gated NMDA receptors), more diversity has emerged recently, with novel epilepsy genes encoding proteins playing a wide range of physiological roles at the cellular and molecular levels, such as synaptic proteins, members of the mTOR pathway, or proteins involved in chromatin remodeling...
December 22, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29275387/syndrome-of-x-linked-intellectual-disability-epilepsy-progressive-brain-atrophy-and-large-head-associated-with-slc9a6-mutation
#17
Hansashree Padmanabha, Arushi Gahlot Saini, Jitendra Kumar Sahu, Pratibha Singhi
SLC9A6 gene encodes for a sodium/hydrogen exchanger-6 protein mainly involved in endosomal trafficking and maintaining intraluminal pH. Loss of function mutations in SLC9A6 gene in children has been associated with Christianson syndrome and autism spectrum disorder. We describe a 3-year-old boy with intellectual disability, infantile-onset drug-refractory epilepsy, progressive brain atrophy and large head with a novel missense hemizygous mutation in exon 16 of the SLC9A6 gene on chromosome X. Presence of large head, early developmental regression and progressive cerebral atrophy expand the phenotypic spectrum of SLC9A6 mutations...
December 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29274567/is-there-consensus-across-international-evidence-based-guidelines-for-the-psychotropic-drug-management-of-bipolar-disorder-during-the-perinatal-period
#18
REVIEW
Rebecca K Graham, Gabriela Tavella, Gordon B Parker
BACKGROUND: Clinicians treating a patient with bipolar disorder who is pregnant or breastfeeding may seek advice from bipolar management guidelines that provide recommendations for perinatal treatment. We examine the consistency of such recommendations across several evidence-based guidelines. METHODS: A literature search in the National Guideline Clearinghouse, the Cochrane Database of Systematic Reviews, PsycInfo and PubMed was undertaken using the search terms "bipolar disorder" and "guidelines," which generated 11 sets of evidence-based guidelines published by professional organizations during the 2005-2015 period...
December 12, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29259852/epidemiology-diagnosis-and-treatment-of-wilson-s-disease
#19
REVIEW
Jing Liu, Jing Luan, Xiaoyan Zhou, Yazhou Cui, Jinxiang Han
Wilson's disease (WD) is an autosomal recessive disease caused by a mutation of the ATP7B gene, resulting in abnormal copper metabolism. The major clinical features of WD include liver disease, neurological disorders, K-F rings, and osteoporosis. The prevalence of WD in China is higher than that in Western countries. Early diagnosis and lifelong treatment will lead to better outcomes. Drugs such as sodium dimercaptosuccinate (Na-DMPS), Zn, and Gandou Decoction can be used to treat WD. Some studies have shown that the combination of traditional Chinese medicine and Western medicine is the best approach to treating WD...
November 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/29250981/update-on-treatment-for-idiopathic-hypersomnia
#20
Elisa Evangelista, Régis Lopez, Yves Dauvilliers
Idiopathic hypersomnia (IH) is a poorly characterized orphan central disorder of hypersomnolence responsible for excessive daytime sleepiness (EDS), prolonged nighttime sleep and sleep inertia that often require long-term symptomatic stimulant medication. To date, no drug has currently the authorization for the treatment of IH patients worldwide. Areas covered: The authors reviewed data on pharmacological treatment of IH obtained from published literature (Medline/PubMed/Web of Science) and Clinicaltrial.gov database from 1997 to 2017...
January 3, 2018: Expert Opinion on Investigational Drugs
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