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Acid base disorders

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https://www.readbyqxmd.com/read/28212441/depressive-disorder-and-gastrointestinal-dysfunction-after-myocardial-infarct-are-associated-with-abnormal-tryptophan-5-hydroxytryptamine-metabolism-in-rats
#1
Xiaofang Lu, Yuefen Wang, Chunyan Liu, Yangang Wang
In this study, we investigated the relationship between tryptophan-5-hydroxytryptamine metabolism, depressive disorder, and gastrointestinal dysfunction in rats after myocardial infarction. Our goal was to elucidate the physiopathologic bases of somatic/psychiatric depression symptoms after myocardial infarction. A myocardial infarction model was established by permanent occlusion of the left anterior descending coronary artery. Depression-like behavior was evaluated using the sucrose preference test, open field test, and forced swim test...
2017: PloS One
https://www.readbyqxmd.com/read/28210249/feeding-a-high-concentration-diet-induces-unhealthy-alterations-in-the-composition-and-metabolism-of-ruminal-microbiota-and-host-response-in-a-goat-model
#2
Canfeng Hua, Jing Tian, Ping Tian, Rihua Cong, Yanwen Luo, Yali Geng, Shiyu Tao, Yingdong Ni, Ruqian Zhao
There is limited knowledge about the impact of long-term feeding a high-concentrate (HC) diet on rumen microbiota, metabolome, and host cell functions. In this study, a combination of mass spectrometry-based metabolomics techniques, 454 pyrosequencing of 16S rDNA genes, and RT-PCR was applied to evaluate the changes of ruminal microbiota composition, ruminal metabolites, and related genes expression in rumen epithelial cells of lactating goats received either a 35% concentrate diet or a 65% concentrate diet for 4 or 19 weeks, respectively...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28209079/acid-base-disorders-after-orthotopic-bladder-replacement-comparison-of-an-ileal-neobladder-and-an-ileal-conduit
#3
AJin Cho, Seung Min Lee, Jung Woo Noh, Don Kyoung Choi, Yongseong Lee, Sung Tae Cho, Ki Kyung Kim, Young Goo Lee, Young Ki Lee
OBJECTIVES: For many years, creation of an orthotopic neobladder after cystectomy has been popular. In the present study, we measured the extent of metabolic acidosis in patients with ileal neobladders compared with ileal conduits and defined risk factors for development of metabolic acidosis. METHODS: We retrospectively studied 95 patients, who underwent radical cystectomy and urinary diversion to treat invasive bladder cancer from January 2001 to December 2014 at Hallym University Kangnam Sacred Heart Hospital, through investigation of acid-base balance, serum electrolyte levels and renal function one month and one year after operation...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28208702/the-glutamate-dehydrogenase-pathway-and-its-roles-in-cell-and-tissue-biology-in-health-and-disease
#4
REVIEW
Andreas Plaitakis, Ester Kalef-Ezra, Dimitra Kotzamani, Ioannis Zaganas, Cleanthe Spanaki
Glutamate dehydrogenase (GDH) is a hexameric enzyme that catalyzes the reversible conversion of glutamate to α-ketoglutarate and ammonia while reducing NAD(P)⁺ to NAD(P)H. It is found in all living organisms serving both catabolic and anabolic reactions. In mammalian tissues, oxidative deamination of glutamate via GDH generates α-ketoglutarate, which is metabolized by the Krebs cycle, leading to the synthesis of ATP. In addition, the GDH pathway is linked to diverse cellular processes, including ammonia metabolism, acid-base equilibrium, redox homeostasis (via formation of fumarate), lipid biosynthesis (via oxidative generation of citrate), and lactate production...
February 8, 2017: Biology
https://www.readbyqxmd.com/read/28202499/dietary-phytochemical-intake-from-foods-and-health-outcomes-a-systematic-review-protocol-and-preliminary-scoping
#5
Yasmine C Probst, Vivienne X Guan, Katherine Kent
INTRODUCTION: Dietary phytochemicals are found in plant-based foods such as fruits, vegetables and grains and may be categorised in a nested hierarchical manner with many hundred individual phytochemicals identified to date. To associate phytochemical intakes with positive health outcomes, a fundamental step is to accurately estimate the dietary phytochemical intake from foods reported. The purpose of this systematic review protocol is to describe the process to be undertaken to summarise the evidence for food-based dietary phytochemical intakes and health outcomes for adults...
February 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28198796/carbonic-anhydrase-i-and-ii-autoantibodies-in-beh%C3%A3-et-s-disease
#6
Ahmet Mentese, Ahmet Alver, Selim Demir, Aysegul Sumer, Serap Ozer Yaman, Murat Karkucak, Arzu Aydin Capkin, Diler Us Altay, Ibrahim Turan
BACKGROUND: Behçet's disease is a vasculitis, seen more frequently around the Mediterranean and the Far East, and evinces with oral and genital ulcerations, skin lesions and uveitis. Carbonic anhydrase (CA) is a metalloenzyme which is widely distributed in the living world, and it is essential for the regulation of acid-base balance. Anti-CA antibodies have been reported in many disorders, such as systemic lupus erythematosus, Sjögren's syndrome, rheumatoid arthritis, endometriosis, idiopathic chronic pancreatitis, type 1 diabetes and Graves' disease...
December 3, 2016: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28194631/development-of-a-new-folate-derived-ga-68-based-pet-imaging-agent
#7
Christian Brand, Valerie A Longo, Mike Groaning, Wolfgang A Weber, Thomas Reiner
PURPOSE: The folate receptor (FR) has emerged as an interesting diagnostic and therapeutic drug target with many potential applications in oncologic and inflammatory disorders. It was therefore the aim of this study to develop a folate-derived Ga-68-based positron emission tomography (PET) imaging tracer that is straightforward to radiolabel and could be broadly used in clinical studies. We validated its target binding affinity and specificity and compared it to [(99m)Tc]EC20, the folate single-photon emission computed tomography (SPECT) imaging tracer that has been most extensively studied clinically so far...
February 13, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28191707/mechanisms-underlying-reflux-symptoms-and-dysphagia-in-patients-with-joint-hypermobility-syndrome-with-and-without-postural-tachycardia-syndrome
#8
A Fikree, Q Aziz, D Sifrim
BACKGROUND: The joint hypermobility syndrome (JHS) is a common non-inflammatory connective tissue disorder which frequently co-exists with postural tachycardia syndrome (PoTS), a form of orthostatic intolerance. Gastrointestinal symptoms and dysmotility have been reported in PoTS. Dysphagia and reflux are common symptoms in JHS, yet no studies have examined the physiological mechanism for these, subdivided by PoTS status. METHODS: Thirty patients (28 female, ages: 18-62) with JHS and symptoms of reflux (n=28) ± dysphagia (n=25), underwent high-resolution manometry and 24 hour pH-impedance monitoring after questionnaire-based symptom assessment...
February 12, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28183556/blood-loss-and-transfusion-requirements-with-epsilon-aminocaproic-acid-use-during-cranial-vault-reconstruction-surgery
#9
Mark E Thompson, Charles Saadeh, Phillip Watkins, Laszlo Nagy, Joshua Demke
OBJECTIVE: To determine whether epsilon-aminocaproic acid (EACA) load of 50 mg∙kg(-1) before skin incision, and infusion of 25 mg∙kg(-1)∙h(-1) until skin closure during cranial vault reconstruction (CVR) were associated with decreased estimated blood loss and transfusion requirements. BACKGROUND: Antifibrinolytic medications decrease bleeding and transfusion requirements during cardiothoracic and orthopedic surgeries with high blood loss, but practical reductions in blood loss and transfusion requirements have not been consistently realized in children undergoing CVR...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28183272/sepia-a-knowledge-driven-algorithm-for-predicting-conformational-b-cell-epitopes-from-the-amino-acid-sequence
#10
Georgios A Dalkas, Marianne Rooman
BACKGROUND: The identification of immunogenic regions on the surface of antigens, which are able to be recognized by antibodies and to trigger an immune response, is a major challenge for the design of new and effective vaccines. The prediction of such regions through computational immunology techniques is a challenging goal, which will ultimately lead to a drastic limitation of the experimental tests required to validate their efficiency. However, current methods are far from being sufficiently reliable and/or applicable on a large scale...
February 10, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28182332/challenging-the-great-vascular-wall-can-we-envision-a-simple-yet-comprehensive-therapy-for-stroke
#11
Marta Machado-Pereira, Tiago Santos, Lino Ferreira, Liliana Bernardino, Raquel Ferreira
Stroke is a leading cause of death in adult life, closely behind ischemic heart disease, and causes a significant and abiding socioeconomic burden. However, current therapies are not able to ensure full neurologic and/or sequelae-free recovery to all stroke survivors. We believe treatment efficacy and patient rehabilitation could be enhanced significantly by targeting blood-brain barrier (BBB) deregulation and inflammation-induced barrier loss occurring after stroke. In this pathological context, bone marrow-derived endothelial progenitor cells (EPC) enter the bloodstream towards the lesion site but their insufficient numbers and impaired angiogenic ability compromise neurovascular regeneration...
February 9, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28181802/pmx-webserver-a-user-friendly-interface-for-alchemistry
#12
Vytautas Gapsys, Bert L de Groot
With the increase of available computational power and improvements in simulation algorithms, the alchemical molecular dynamics based free energy calculations have developed into routine usage in the field of computational structural biology. To further facilitate the usability of the alchemical methods for the amino acid mutations, we have developed a web based infrastructure for obtaining hybrid protein structures and topologies. The presented webserver allows amino acid mutation selection in five contemporary molecular mechanics force fields...
February 9, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28177393/acidogenic-mineral-additions-increased-ca-mobilization-in-prepartum-sows
#13
C Darriet, D E Axe, T D Crenshaw
Increased sow milk production is associated with an increase in unexplained sow mortality during prepartum and early postpartum periods. This association has led to purported claims of hypocalcemic disorders. Assuming similar responses as dairy cows, feeding anionic mineral salts in late gestation and early lactation may reduce potential hypocalcemia related disorders in sows. Two experiments using CAD-MATE (Granco Minerals, Petersburg, VA), an acidogenic mineral supplement (AMS), were designed to determine the amount required to increase urinary Ca excretion and to identify renal compensatory responses to acid loads in sows...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28177094/-analysis-of-the-parameters-traditional-or-not-for-the-evaluation-of-the-metabolic-acidosis
#14
Caterina Urso, Salvatore Brucculeri, Caterina Carollo, Gregorio Caimi
Despite huge progress in acidbase knowledge, several confusing, irrational and controversial issues still remain. Acid-base disturbances have been usually evaluated with the traditional Henderson-Hasselbach method and with BE evaluation that seem inadequate since they define the magnitude of metabolic acidosis rather than its cause. Some studies have shown that the traditional approach is often not able to highlight the complicated acid-base disorders in critically ill patients; in these subjects, the possibility to identify tissue acids could offer a greater prognostic value than the evaluation of traditional parameters...
January 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28176326/identification-of-novel-inhibitors-of-the-amino-acid-transporter-b-0-at1-slc6a19-a-potential-target-to-induce-protein-restriction-and-to-treat-type-2-diabetes
#15
Qi Cheng, Nishank Shah, Angelika Bröer, Stephen Fairweather, Yang Jiang, Dieter Schmoll, Ben Corry, Stefan Bröer
BACKGROUND AND PURPOSE: The neutral amino acid transporter B(0) AT1 (SLC6A19) has recently been identified as a possible target to treat type 2 diabetes and related disorders. B(0) AT1 mediates the Na(+) -dependent uptake of all neutral amino acids. For surface expression and catalytic activity, B(0) AT1 requires coexpression of collectrin (TMEM27). In this study, we established tools to identify and evaluate novel inhibitors of B(0) AT1. EXPERIMENTAL APPROACH: A CHO-based cell line was generated, stably expressing collectrin and B(0) AT1...
February 8, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28168009/antioxidants-of-phyllanthus-emblica-l-bark-extract-provide-hepatoprotection-against-ethanol-induced-hepatic-damage-a-comparison-with-silymarin
#16
Renuka Chaphalkar, Kishori G Apte, Yogesh Talekar, Shreesh Kumar Ojha, Mukesh Nandave
Phyllanthus emblica L. (amla) has been used in Ayurveda as a potent rasayan for treatment of hepatic disorders. Most of the pharmacological studies, however, are largely focused on PE fruit, while the rest of the parts of PE, particularly, bark, remain underinvestigated. Therefore, we aimed to investigate the protective effect of the hydroalcoholic extract of Phyllanthus emblica bark (PEE) in ethanol-induced hepatotoxicity model in rats. Total phenolic, flavonoid, and tannin content and in vitro antioxidant activities were determined by using H2O2 scavenging and ABTS decolorization assays...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28165480/%C3%AE-lipoic-acid-treatment-prevents-cystine-urolithiasis-in-a-mouse-model-of-cystinuria
#17
Tiffany Zee, Neelanjan Bose, Jarcy Zee, Jennifer N Beck, See Yang, Jaspreet Parihar, Min Yang, Sruthi Damodar, David Hall, Monique N O'Leary, Arvind Ramanathan, Roy R Gerona, David W Killilea, Thomas Chi, Jay Tischfield, Amrik Sahota, Arnold Kahn, Marshall L Stoller, Pankaj Kapahi
Cystinuria is an incompletely dominant disorder characterized by defective urinary cystine reabsorption that results in the formation of cystine-based urinary stones. Current treatment options are limited in their effectiveness at preventing stone recurrence and are often poorly tolerated. We report that the nutritional supplement α-lipoic acid inhibits cystine stone formation in the Slc3a1(-/-) mouse model of cystinuria by increasing the solubility of urinary cystine. These findings identify a novel therapeutic strategy for the clinical treatment of cystinuria...
February 6, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28163535/lesinurad-a-significant-advancement-or-just-another-addition-to-existing-therapies-of-gout
#18
REVIEW
Ajay Gupta, Pramod Kumar Sharma, Arup Kumar Misra, Surjit Singh
Gout is a metabolic disorder that usually presents as recurrent episodes of acute arthritis due to deposition of crystals in joints and cartilages. Despite the availability of several drugs for gout, its management is still less than adequate. There is always a search for newer, safer, and more potent urate-lowering therapies for treating patients inadequately controlled with available drugs. Lesinurad in combination with a xanthine oxidase inhibitor provides an effective mode of therapy in the management of hyperuricemia associated with gout...
October 2016: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/28161285/genetic-polymorphisms-of-fads1-fads2-and-fads3-and-fatty-acid-profiles-in-subjects-received-methadone-maintenance-therapy
#19
Hui-Ting Yang, Ruey-Yun Wang, Shih-Yi Huang, Chieh-Liang Huang, Kuan-Pin Su
Abnormal fatty acid metabolism and the related enzymes had been observed to be associated with psychiatric disorders. We investigated FADS gene family genetic polymorphisms and variations of lipid profiles in patients with heroin dependence receiving 6-month methadone maintenance therapy (MMT). We recruited 89 MMT drug abusers and analyzed 3 tag single nucleotide polymorphisms (SNPs) from Fatty acid desaturases (FADS), FADS1, FADS2 and FADS3. The fatty acid profiles of erythrocyte membranes were analyzed based on genetic variations...
January 25, 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28160544/effects-of-hypericum-perforatum-extract-on-oxaliplatin-induced-neurotoxicity-in-vitro-evaluations
#20
Lorenzo Cinci, Lorenzo Di Cesare Mannelli, Anna Maidecchi, Luisa Mattoli, Carla Ghelardini
Hypericum perforatum L. has been used for centuries as a natural remedy for the treatment of many disorders. Neuropathic pain is a common side effect of oxaliplatin-based chemotherapy and often the cause of therapy discontinuation. Thanks to its anti-inflammatory and analgesic effects, the use of H. perforatum may be a novel therapeutic strategy for neuropathy. The aim of this paper was to evaluate the effect of H. perforatum hydrophilic extract on an in vitro model of oxaliplatin-induced neurotoxicity. The antioxidant potential of extract was first evaluated in cell-free models by the thiobarbituric acid-reactive substances assay and nitro blue tetrazolium oxidation test; the ability of H...
February 4, 2017: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
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