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sulfate magnesium

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https://www.readbyqxmd.com/read/28642473/predicting-effects-on-oxaliplatin-clearance-in-vitro-kinetic-and-clinical-studies-of-calcium-and-magnesium-mediated-oxaliplatin-degradation
#1
Catherine H Han, Prashannata Khwaounjoo, Andrew G Hill, Gordon M Miskelly, Mark J McKeage
This study evaluated the impact of calcium and magnesium on the in vitro degradation and in vivo clearance of oxaliplatin. Intact oxaliplatin and Pt(DACH)Cl2 were measured in incubation solutions by HPLC-UV. A clinical study determined changes in plasma concentrations of calcium and magnesium in cancer patients and their impact on oxaliplatin clearance. Kinetic analyses modelled oxaliplatin degradation reactions in vitro and contributions to oxaliplatin clearance in vivo. Calcium and magnesium accelerated oxaliplatin degradation to Pt(DACH)Cl2 in chloride-containing solutions in vitro...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633512/media-optimization-for-economic-succinic-acid-production-by-enterobacter-sp-lu1
#2
Marcin Podleśny, Agnieszka Kubik-Komar, Jagoda Kucharska, Jakub Wyrostek, Piotr Jarocki, Zdzisław Targoński
Enterobacter sp. LU1 could efficiently convert glycerol to succinic acid under anaerobic conditions after the addition of lactose. In this study, media constituents affecting both Enterobacter sp. LU1 biomass and succinic acid production were investigated employing response surface methodology (RSM) with central composite design. Statistical methods led to the development of an efficient and inexpensive microbiological media based on crude glycerol, whey permeate as carbon sources and urea as a nitrogen source...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28631456/comparison-between-adenosine-and-magnesium-sulphate-as-adjuvants-for-transversus-abdominis-plane-block-a-prospective-randomized-controlled-trial
#3
Amany S Ammar, Khaled M Mahmoud, Zeinab A Kasemy
BACKGROUND: Various adjuvants have been employed during different nerve blocks. We aimed to evaluate the effect of adding adenosine versus magnesium sulfate to bupivacaine on the quality and duration of transversus abdominis plane (TAP) block. METHODS: Participants were randomized to TAP block using either 20 ml of bupivacaine hydrochloride 0.375% + 12 mg adenosine in 2 ml of saline 0.9% (adenosine group), 20 ml of bupivacaine hydrochloride 0.375% + 500 mg magnesium sulphate in 2 ml saline 0...
June 14, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28629437/evaluation-of-a-low-cost-low-power-syringe-pump-to-deliver-magnesium-sulfate-intravenously-to-pre-eclamptic-women-in-a-malawian-referral-hospital
#4
Erica Skerrett, Edward Kommwa, Kelley Maynard, Alexa Juarez, Ronald Mataya, Rebecca Richards-Kortum, Z Maria Oden
BACKGROUND: Magnesium sulfate is an affordable and effective treatment for pre-eclampsia and eclampsia. In settings where infusion pumps are not available to regulate the flow rate of intravenous delivery, healthcare providers must administer magnesium sulfate (MgSO4) via time-consuming and painful, large-volume intramuscular injections. As an alternative to costly commercially available syringe pumps, we developed AutoSyp, an accurate, low-cost, and low-powered syringe pump designed to meet the needs and constraints these low-resource settings...
June 19, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28590987/-chaotic-arrhythmia-during-successful-resuscitation-after-ingestion-of-yew-taxus-baccata-needles
#5
Andreas Zutter, Kathrin Hauri, Katrina S Evers, Sabine Uhde, Jens Fassl, Oliver Tobias Reuthebuch, Andreas Berset, Michael Kühne, Birgit C Donner
OBJECTIVE: The study aims to describe the management of a case of life-threatening yew (Taxus baccata) intoxication. BACKGROUND: The needles of the yew tree contain highly cardiotoxic taxines. Intoxication with taxines, typically as part of suicide attempts, may lead to potentially lethal arrhythmias which often require prolonged cardiopulmonary resuscitation and other supportive measures. No specific therapy has been described. In some cases, extracorporeal life support has been used...
June 6, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28589614/optimization-of-maternal-magnesium-sulfate-administration-for-fetal-neuroprotection-application-of-a-prospectively-constructed-pharmacokinetic-model-to-the-beam-cohort
#6
Kathleen F Brookfield, Mohammed Elkomy, Felice Su, David R Drover, Brendan Carvalho
The aim of the study was to identify the optimal therapeutic maternal magnesium drug exposure and maternal serum concentration to prevent cerebral palsy in the extremely preterm fetus. We applied a previously constructed pharmacokinetic model adjusted for indication to a large cohort of pregnant women receiving magnesium sulfate to prevent cerebral palsy in their preterm offspring at 20 different US academic centers between December 1997 and May 2004. We simulated the population-based individual maternal serum magnesium concentration at the time of delivery and the total magnesium dose for each woman who received magnesium sulfate to determine the relationship between maternal serum magnesium level at the time of delivery and the development of cerebral palsy...
June 6, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28583999/paramedic-initiation-of-neuroprotective-agent-infusions-successful-achievement-of-target-blood-levels-and-attained-level-effect-on-clinical-outcomes-in-the-fast-mag-pivotal-trial-field-administration-of-stroke-therapy-magnesium
#7
Kristina Shkirkova, Sidney Starkman, Nerses Sanossian, Marc Eckstein, Samuel Stratton, Frank Pratt, Robin Conwit, Scott Hamilton, Latisha Sharma, David Liebeskind, Lucas Restrepo, Miguel Valdes-Sueiras, Jeffrey L Saver
BACKGROUND AND PURPOSE: Paramedic use of fixed-size lumen, gravity-controlled tubing to initiate intravenous infusions in the field may allow rapid start of neuroprotective therapy for acute stroke. In a large, multicenter trial, we evaluated its efficacy in attaining target serum levels of candidate neuroprotective agent magnesium sulfate and the relation of achieved magnesium levels to outcome. METHODS: The FAST-MAG phase 3 trial (Field Administration of Stroke Therapy - Magnesium) randomized 1700 patients within 2 hours of onset to paramedic-initiated, a 15-minute loading intravenous infusion of magnesium or placebo followed by a 24-hour maintenance dose...
June 5, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28580926/crystal-structure-of-recombinant-phosphoribosylpyrophosphate-synthetase-2-from-thermus-thermophilus-hb27-complexed-with-adp-and-sulfate-ions
#8
Vladimir I Timofeev, Ekaterina V Sinitsyna, Maria A Kostromina, Tatiana I Muravieva, Dmitry A Makarov, Olga O Mikheeva, Inna P Kuranova, Roman S Esipov
Phosphoribosylpyrophosphate synthetase (PRPPS) from the thermophilic bacterial strain Thermus thermophilus HB27 catalyzes the synthesis of phosphoribosylpyrophosphate from ribose 5-phosphate and ATP, and belongs to the class I PRPPSs. The three-dimensional structure of the recombinant enzyme was solved at 2.2 Å resolution using crystals grown in microgravity from protein solution containing ATP, magnesium and sulfate ions. An ADP molecule was located in the active site of each subunit of the hexameric enzyme molecule and sulfate ions were located in both the active and allosteric sites...
June 1, 2017: Acta Crystallographica. Section F, Structural Biology Communications
https://www.readbyqxmd.com/read/28579856/estimation-of-platelet-counts-and-other-hematological-parameters-in-pseudothrombocytopenia-using-alternative-anticoagulant-magnesium-sulfate
#9
REVIEW
Chidambharam Choccalingam, Rajesh Kanna Nandagopal Radha, Nadella Snigdha
The platelet count, mean platelet volume, and other hematological parameters were compared in blood samples anticoagulated with MgSO4 and EDTA. A total of 15 samples were taken, and the platelet counts were observed to be significantly high in MgSO4-anticoagulated blood samples ranging from 53 × 10(3) to 499 × 10(3)/μL, whereas in EDTA-anticoagulated blood samples, the counts ranged from 10 × 10(3) to 353 × 10(3)/μL. This increased platelet count was also statistically significant with the P value being ...
2017: Clinical Medicine Insights. Blood Disorders
https://www.readbyqxmd.com/read/28556626/media-development-for-large-scale-agrobacterium-tumefaciens-culture
#10
Ingrid K Leth, Karen A McDonald
A chemically defined media was developed for growing Agrobacterium tumefaciens at large scale for commercial production of recombinant proteins by transient expression in plants. Design of experiments was used to identify major and secondary effects of ten media components: sucrose, ammonium sulfate ((NH4 )2 SO4 ), magnesium sulfate heptahydrate (MgSO4 *7H2 O), calcium chloride dihydrate (CaCl2 *2H2 O), iron (II) sulfate heptahydrate (FeSO4 *7H2 O), manganese (II) sulfate monohydrate (MnSO4 *H2 O), zinc sulfate heptahydrate (ZnSO4 *7H2 O), sodium chloride (NaCl), potassium chloride (KCl) and a sodium/potassium phosphate buffer (Na2 HPO4 /KH2 PO4 )...
May 27, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28541941/greywater-treatment-by-granular-filtration-system-using-volcanic-tuff-and-gravel-media
#11
Abeer Albalawneh, Tsun-Kuo Chang, Heba Alshawabkeh
The main objective of this study was to evaluate the efficiency of a granular filtration system (GFS) in greywater treatment under arid and semi-arid conditions. Six GFSs were designed, constructed, and monitored for approximately 13 months. Each GFS served a single rural Jordanian home by treating their greywater. Volcanic tuff media were used as the filtration media in three of the GFSs while the remaining three GFSs used gravel media. Results show that the biological oxygen demand, chemical oxygen demand, and total suspended solids of the effluent were significantly lower as compared to the influent and demonstrated a removal efficiency of 73%, 65%, and 85%, respectively, when using volcanic tuff media...
May 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28532393/maternal-care-quality-in-near-miss-and-maternal-mortality-in-an-academic-public-tertiary-hospital-in-yogyakarta-indonesia-a-retrospective-cohort-study
#12
Yuli Mawarti, Adi Utarini, Mohammad Hakimi
BACKGROUND: Reducing maternal mortality remains a major challenge for health care systems worldwide. The factors related to maternal mortality were extensively researched, and maternal death clusters around labour, delivery and the immediate postpartum period. Studies on the quality of maternal care in academic medical centre settings in low income countries are uncommon. METHODS: A retrospective cohort study of maternal deaths was conducted in an academic public tertiary hospital in Yogyakarta, and maternal near misses were used as controls...
May 22, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28521581/association-between-the-use-of-magnesium-sulfate-as-neuroprotector-in-prematurity-and-the-neonatal-hemodynamic-effects
#13
Rodrigo Dias Nunes, Flávia Duarte Schutz, Jefferson Luiz Traebert
PURPOSE: Cerebral palsy is often associated with prematurity and magnesium sulfate (MgSO4), has been used as neuroprotector, with favorable results. However, its mechanism of action has not been fully elucidated. This study aimed to evaluate the association between MgSO4 at the imminent premature delivery and neonatal hemodynamic effects. MATERIALS AND METHODS: A cross-sectional study involving 94 newborns (NB) between 24 and 32 weeks at a Brazilian hospital was performed...
May 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28501279/clinical-and-laboratory-markers-in-the-recovery-from-severe-preeclampsia
#14
Reut Rotem, Avital Bilitzky, Tamar Abady Nezer, Igal Plakht, Adi Y Weintraub
OBJECTIVE: To examine the recovery from severe Preeclampsia toxemia (PET) in women treated with magnesium sulfate (MgSO4) during the first 24h postpartum as reflected by the changes in various clinical and laboratory markers. STUDY DESIGN: The study population included all women diagnosed with severe PET that gave birth at the Soroka University Medical center between 2013 and 2014, and were treated with MgSO4 in the first 24h postpartum. Data were collected from the institutional computerized records...
April 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/28500320/oral-administration-of-trace-element-magnesium-significantly-improving-the-cognition-and-locomotion-in-hepatic-encephalopathy-rats
#15
Ying Li, Chang Xue Ji, Li Hong Mei, Jin Wei Qiang, Shuai Ju
The therapeutic effects of iron, zinc and magnesium trace elements, as well as rifaximin were investigated and compared in HE rats. In this study, HE rats were treated with either ferrous sulfate (HE-Fe, 30 mg/kg/day), zinc sulfate (HE-Zn, 30 mg/kg/day), magnesium sulfate (HE-Mg, 50 mg/kg/day) or rifaximin (HE-Rf, 50 mg/kg/day), which was mixed with water and administered orally for 61 days. The Morris water maze (MWM) and open-field tests were used to evaluate cognitive and locomotor function. The blood ammonia levels before and after administration of the glutamine challenge test, manganese concentration and glutamine synthetase (GS) activity were measured...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28494889/influence-of-the-perioperative-administration-of-magnesium-sulfate-on-the-total-dose-of-anesthetics-during-general-anesthesia-a-systematic-review-and-meta-analysis
#16
REVIEW
Laura Rodríguez-Rubio, Eduardo Nava, Julián Solís García Del Pozo, Joaquín Jordán
BACKGROUND: Magnesium sulfate displays numerous characteristics that make it a useful drug in anesthesiology (N-methyl-d-aspartate receptor antagonist, vasodilator, antiarrhythmic, inhibitor of catecholamine release and of acetylcholine in the terminal motor plate). The perioperative use of this drug as an adjuvant capable of decreasing the required dose of anesthetics, has been proposed. OBJECTIVES: To assess the influence of intravenous magnesium sulfate administration during general anesthesia on the overall dose of required anesthetics...
June 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28494498/antenatal-exposure-to-magnesium-sulfate-and-spontaneous-intestinal-perforation-and-necrotizing-enterocolitis-in-extremely-preterm-neonates
#17
Mohamed Shalabi, Adel Mohamed, Brigitte Lemyre, Khalid Aziz, Daniel Faucher, Prakesh S Shah
No abstract text is available yet for this article.
May 11, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28469536/effects-of-maternal-magnesium-sulfate-treatment-on-neonatal-feeding-tolerance
#18
Meghan K Belden, Sarah Gnadt, Ann Ebert
OBJECTIVE: To determine whether antenatal exposure to magnesium sulfate has an effect on neonatal enteral feeding tolerance. METHODS: In this single-center, retrospective, observational study, charts of pregnant women who received intravenous magnesium sulfate infusions prior to delivery between July 1, 2012, and July 31, 2013, were reviewed. Neonates born at 24 weeks' gestational age or greater admitted to the neonatal intensive care unit (NICU) whose mothers received magnesium sulfate infusions prior to delivery were included...
March 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28468697/multiresidue-method-for-targeted-screening-of-pesticide-residues-in-spice-cardamom-elettaria-cardamomum-by-liquid-chromatography-with-tandem-mass-spectrometry
#19
Manjusha Jadhav, Ahammed Shabeer Thekkumpurath, Mayura Nakade, Manasi Gadgil, Dasharath Oulkar, Ranjith Arimboor, Menon Ramakrishna, Kaushik Banerjee
A QuEChERS technique-based sample preparation method was optimized and validated in small cardamom to monitor the residues of 154 pesticides by LC with tandem MS. The proposed multiresidue method involved soaking powdered cardamom (2 g) in water (8 mL) for 30 min, followed by extraction with acetonitrile (10 mL). Cleanup by dispersive SPE was performed using primary secondary amine (25 mg/mL), C18 (25 mg/mL), and anhydrous magnesium sulfate (150 mg/mL). The method was validated as per the SANTE/11945/2015 guidelines at 5, 10, 50, and 100 ng/g spiking levels, and most of the analytes showed recoveries between 70 and 120% (with RSDs ≤20%)...
May 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28460120/post-neonatal-tetanus-in-a-picu-of-a-developing-economy-intensive-care-needs-outcome-and-predictors-of-mortality
#20
Suresh Kumar Angurana, Muralidharan Jayashree, Arun Bansal, Sunit Singhi, Karthi Nallasamy
Objectives: To evaluate pediatric intensive care unit (PICU) needs, outcome and predictors of mortality in post-neonatal tetanus. Materials and methods: Review of 30 consecutive post-neonatal tetanus cases aged 1 months to 12 years admitted to a PICU in north India over a period of 10 years (January 2006 to December 2015). Results: Chronic suppurative otitis media was the commonest portal of entry. All received tetanus toxoid, human tetanus immunoglobulin (HTIG) and appropriate antibiotics; 7 (23...
April 27, 2017: Journal of Tropical Pediatrics
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