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sulfate magnesium

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https://www.readbyqxmd.com/read/28104401/leading-causes-of-preterm-delivery-as-risk-factors-for-intraventricular-hemorrhage-in-very-preterm-infants-results-of-the-epipage-2-cohort-study
#1
Marie Chevallier, Thierry Debillon, Veronique Pierrat, Pierre Delorme, Gilles Kayem, Mélanie Durox, François Goffinet, Stephane Marret, Pierre Yves Ancel
BACKGROUND: Intraventricular hemorrhage is a major risk factor for neurodevelopmental disabilities in preterm infants. However, few studies have investigated how pregnancy complications responsible for preterm delivery are related to intraventricular hemorrhage. OBJECTIVE: To investigate the association between the main causes of preterm delivery and intraventricular hemorrhage in very preterm infants born in France during 2011 between 22 and 31 weeks of gestation...
January 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28103822/emergency-obstetric-and-neonatal-care-availability-use-and-quality-a-cross-sectional-study-in-the-city-of-lubumbashi-democratic-republic-of-the-congo-2011
#2
Abel Mukengeshayi Ntambue, Françoise Kaj Malonga, Karen D Cowgill, Michèle Dramaix-Wilmet, Philippe Donnen
BACKGROUND: While emergency obstetric and neonatal care (EmONC) is a proxy indicator for monitoring maternal and perinatal mortalities, in Democratic Republic of the Congo (DRC), data on this care is rarely available. In the city of Lubumbashi, the second largest in DRC with an estimated population of 1.5 million, the availability, use and quality of EmONC are not known. This study aimed to assess these elements in Lubumbashi. METHODS: This cross-sectional survey was conducted in April and May 2011...
January 19, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28099693/factors-associated-with-maternal-mortality-among-patients-meeting-criteria-of-severe-maternal-morbidity-and-near-miss
#3
Hesly M P Lima, Francisco Herlânio C Carvalho, Francisco Edson L Feitosa, George C Nunes
OBJECTIVE: To evaluate factors associated with maternal death among women experiencing life-threatening conditions during pregnancy, childbirth, or within 42 days of termination of pregnancy. METHODS: A secondary analysis of data prospectively collected in a Brazilian multicenter cross-sectional study between July 2009 and June 2010 was conducted. Women were identified who delivered at a hospital in Ceará and who had potentially life-threatening conditions. Stepwise logistic regression was used to identify factors associated with maternal death...
December 7, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28095795/intrathecal-magnesium-sulfate-does-not-reduce-the-ed50-of-intrathecal-hyperbaric-bupivacaine-for-cesarean-delivery-in-healthy-parturients-a-prospective-double-blinded-randomized-dose-response-trial-using-the-sequential-allocation-method
#4
Fei Xiao, Wenping Xu, Ying Feng, Feng Fu, Xiaomin Zhang, Yinfa Zhang, Lizhong Wang, Xinzhong Chen
BACKGROUND: Addition of intrathecal magnesium sulfate to local anesthetics has been reported to potentiate spinal anesthesia and prolong analgesia in parturients. The current study was to determine whether intrathecal magnesium sulfate would reduce the dose of hyperbaric bupivacaine in spinal anesthesia with bupivacaine and sufentanil for cesarean delivery. METHODS: Sixty healthy parturients undergoing scheduled cesarean delivery were randomly assigned to receive spinal anesthesia with 0...
January 17, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28068594/prevention-of-spontaneous-preterm-birth-guidelines-for-clinical-practice-from-the-french-college-of-gynaecologists-and-obstetricians-cngof
#5
REVIEW
Loïc Sentilhes, Marie-Victoire Sénat, Pierre-Yves Ancel, Elie Azria, Guillaume Benoist, Julie Blanc, Gilles Brabant, Florence Bretelle, Stéphanie Brun, Muriel Doret, Chantal Ducroux-Schouwey, Anne Evrard, Gilles Kayem, Emeline Maisonneuve, Louis Marcellin, Stéphane Marret, Nicolas Mottet, Sabine Paysant, Didier Riethmuller, Patrick Rozenberg, Thomas Schmitz, Héloïse Torchin, Bruno Langer
In France, 60,000 neonates are born preterm every year (7.4%), half of them after the spontaneous onset of labor. Among preventable risk factors of spontaneous prematurity, only cessation of smoking is associated with decreased prematurity (level of evidence [LE]1). It is therefore recommended (Grade A). Routine screening and treatment of vaginal bacteriosis is not recommended in the general population (Grade A). The only population for which vaginal progesterone is recommended is that comprising asymptomatic women with singleton pregnancies, no history of preterm delivery, and a short cervix at 16-24 weeks of gestation (Grade B)...
December 30, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28056569/maternal-side-effects-fetal-neuroprotection-according-to-body-mass-index-after-magnesium-sulfate-in-a-multicenter-randomized-controlled-trial
#6
Gustavo Vilchez, Jing Dai, Moraima Lagos, Robert J Sokol
OBJECTIVE: Evidence supports the need of dose-adjustment of several drugs according to body mass index (BMI) to prevent toxicity in the underweight, and ensure efficacy in obese women. However, for MgSO4 neuroprotection, the effect of BMI on maternal toxicity and fetal neuroprotection is understudied. We analyze the effect of BMI on maternal/infant outcomes after MgSO4. METHODS: Secondary analysis of a clinical trial that studied MgSO4 neuroprotection. Maternal side effects, magnesium cord levels, and offspring cerebral palsy/death were analyzed along BMI strata using ANOVA and chi-square test...
January 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28049663/reproducibility-of-urinary-biomarkers-in-multiple-24-h-urine-samples
#7
Qi Sun, Kimberly A Bertrand, Adrian A Franke, Bernard Rosner, Gary C Curhan, Walter C Willett
BACKGROUND: Limited knowledge regarding the reproducibility of biomarkers in 24-h urine samples has hindered the collection and use of the samples in epidemiologic studies. OBJECTIVE: We aimed to evaluate the reproducibility of various markers in repeat 24-h urine samples. DESIGN: We calculated intraclass correlation coefficients (ICCs) of biomarkers measured in 24-h urine samples that were collected in 3168 participants in the NHS (Nurses' Health Study), NHSII (Nurses' Health Study II), and Health Professionals Follow-Up Study...
January 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28049556/magnesium-sulfate-another-cause-of-a-solute-diuresis
#8
Robert S Brown
In pregnant women, magnesium sulfate infusions are a treatment commonly used for preeclampsia and as a tocolytic agent. In this case report, a 33-year-old woman at 26 weeks of gestation received intravenous magnesium sulfate in Ringer's lactate solution and corticosteroids for preterm uterine contractions without preeclampsia. She developed polyuria of more than 18L in 48 hours, with urine chemistries documenting that magnesium sulfate contributed 30% of the solute in this massive isosthenuric diuresis. Therefore, magnesium sulfate should be added to the common solutes, glucose, sodium chloride, urea, and mannitol, as a cause of solute diureses...
December 31, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28045184/synthesis-and-characterization-of-layered-metal-sulfates-containing-m-%C3%AE-3-oh-f-2-m-mg-co-diamond-chains
#9
Subba R Marri, Sudipta Mahana, Dinesh Topwal, J N Behera
Cobalt and magnesium sulfates of the compositions, [C4N2H12]2[Co3F2(SO4)3(H2O)2], (1) and [NH4]2[Mg3(OH)2(SO4)3(H2O)2], (2), respectively, have been synthesized under hydro/solvothermal conditions, and are characterized by IR spectra, elemental analysis, powder X-ray diffraction (PXRD), energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and X-ray single-crystal diffraction. 1 and 2 crystallized in the orthorhombic space groups Pnma and Cmc2 respectively. While 1 is templated by the organic piperazinium cation, 2 is obtained in the presence of ammonium ions...
January 3, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28039756/melt-compounded-composites-of-ethylene-vinyl-acetate-with-magnesium-sulfate-as-flexible-epr-dosimeters-mechanical-properties-manufacturing-process-feasibility-and-dosimetric-characteristics
#10
S K Suman, R M Kadam, R K Mondal, S Murali, K A Dubey, Y K Bhardwaj, V Natarajan
Novel polymeric composites for radiation dosimetry were developed. The composites were prepared by solvent-free melt compounding of ethylene vinyl acetate (EVA) (40% vinyl) and magnesium sulfate (MgSO4). Mechanical properties, melt flow characteristics and dosimetric properties were investigated. The composites with up to 50% (wt) of MgSO4 were flexible and capable of flow. The dose response of the EPR signal of the composites was studied in the dose range 3Gy-4kGy and found to be linear between 18Gy and 4kGy...
December 21, 2016: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28017170/effects-of-lidocaine-and-magnesium-sulfate-in-attenuating-hemodynamic-response-to-tracheal-intubation-single-center-prospective-double-blind-randomized-study
#11
Fabricio Tavares Mendonça, Lucas Macedo da Graça Medeiros de Queiroz, Cristina Carvalho Rolim Guimarães, Alexandre Cordeiro Duarte Xavier
BACKGROUND AND OBJECTIVES: Hemodynamic response to airway stimuli is a common phenomenon and its management is important to reduce the systemic repercussions. The objective of this study is to compare the efficacy of intravenous magnesium sulfate versus lidocaine on this reflex hemodynamics after laryngoscopy and tracheal intubation. METHODS: This single-center, prospective, double-blind, randomized study evaluated 56 patients ASA 1 or 2, aged 18-65 years, scheduled for elective surgeries under general anesthesia with intubation...
January 2017: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/28008305/magnesium-sulfate-prevents-placental-ischemia-induced-increases-in-brain-water-content-and-cerebrospinal-fluid-cytokines-in-pregnant-rats
#12
Linda W Zhang, Junie P Warrington
Magnesium sulfate (MgSO4) is the most widely used therapy in the clinic to prevent the progression of preeclampsia, a hypertensive disorder of pregnancy, to eclampsia. Eclampsia, manifested as unexplained seizures and/or coma during pregnancy or postpartum, accounts for ~13% of maternal deaths worldwide. While MgSO4 continues to be used in the clinic, the mechanisms by which it exerts its protective actions are not well understood. In this study, we tested the hypothesis that MgSO4 protects against placental ischemia-induced increases in brain water content and cerebrospinal fluid cytokines...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27996280/a-comparative-pilot-study-of-the-efficacy-and-safety-of-nebulized-magnesium-sulfate-and-intravenous-magnesium-sulfate-in-children-with-severe-acute-asthma
#13
Tassalapa Daengsuwan, Sureerat Watanatham
INTRODUCTION: Severe asthmatic attacks are life-threatening requiring serious medical attention. Intravenous MgSO4 is an efficient medication proven to improve outcomes. Recently, many research has supported the administration of nebulized MgSO4 in adults with critical asthma. However, its benefits for treating childhood asthma have been little investigated. This study compared the clinical efficacy and the adverse effect of nebulized MgSO4 and intravenous MgSO4 in the treatment of children with severe acute asthma...
December 12, 2016: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/27978803/magnesium-in-pain-research-state-of-the-art
#14
Dragana Srebro, Sonja Vučković, Aleksandar Milovanović, Jovan Košutić, Katarina Savić Vujović, Milica Prostran
Magnesium has been shown to produce an antinociceptive effect on animal models of neuropathic and inflammatory pain. It has also been shown to exert an analgesic effect on humans in conditions presenting acute (postoperative pain) and chronic (neuropathic) pain. As it is known that magnesium is a physiological antagonist of the N-methyl-D-aspartate (NMDA) receptor ion channel, and that the NMDA receptor plays a key role in central sensitization, the primary mechanism through which magnesium produces its analgesic effect is believed to be blockade of the NMDA receptor in the spinal cord...
December 12, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27977922/proteome-analysis-is-a-valuable-tool-to-monitor-antigen-expression-during-upstream-processing-of-whole-cell-pertussis-vaccines
#15
Bernard Metz, Marieke Hoonakker, Joost P Uittenbogaard, Michel Weyts, Geert P M Mommen, Hugo D Meiring, Wichard Tilstra, Jeroen L A Pennings, Leo A van der Pol, Betsy Kuipers, Arjen Sloots, Jan van den IJssel, Bas van de Waterbeemd, Arno van der Ark
Physicochemical and immunochemical assays were applied to substantiate the relation between upstream processing and the quality of whole-cell pertussis vaccines. Bordetella pertussis bacteria were cultured on a chemically defined medium using a continuous cultivation process in stirred tank reactors to obtain uniform protein expression. Continuous culture favors the consistent production of proteins known as virulence factors. Magnesium sulfate was added during the steady state of the culture in order to diminish the expression of virulence proteins...
December 23, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27974238/maternal-administration-of-magnesium-sulfate-promotes-cell-proliferation-in-hippocampus-dentate-gyrus-in-offspring-mice-after-exposing-to-prenatal-stress
#16
Xinli Xiang, Depeng Zhao, Chonglan Gao, Kai Wang, Qian Zhou, Jiuhong Kang, Tao Duan
Prenatal stress (PS) inhibits cell proliferation in the hippocampal dentate gyrus (DG), which is related to hippocampal anatomy and function abnormality. The aim of the study was to investigate the effects of magnesium sulfate (MgSO4) on PS-induced cell proliferation suppression in offspring during embryonic stage and postnatal spatial learning. MgSO4 administration was performed after PS treatment on pregnant mice. Mice were randomly divided into four groups: non-PS or PS maternal mice injected with MgSO4 or saline (P+NS, P+MG, C+MG and C+NS group)...
December 11, 2016: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/27958719/detection-of-metoprolol-in-human-biofluids-and-pharmaceuticals-via-ion-transfer-voltammetry-at-the-nanoscopic-liquid-liquid-interface-array
#17
Xiao Huang, Lisiqi Xie, Xingyu Lin, Bin Su
Metoprolol (MTP) is one of the most widely used antihypertensive drugs yet banned to use in sport competition. Therefore, there has been an increasing demand for developing simple, rapid, and sensitive methods suited to the identification and quantification of MTP in human biofluids. In this work, ultrathin silica nanochannel membrane (SNM) with perforated channels was employed to support nanoscale liquid/liquid interface (nano-ITIES) array for investigation of the ion-transfer voltammetric behavior of MTP and for its detection in multiple human biofluids and pharmaceutical formulation...
December 13, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27929695/secondhand-smoke-exposure-illness-severity-and-resource-utilization-in-pediatric-emergency-department-patients-with-respiratory-illnesses
#18
Ashley L Merianos, Cinnamon A Dixon, E Melinda Mahabee-Gittens
OBJECTIVE: Hospital-based data reveal that children who have secondhand smoke exposure (SHSe) experience severe respiratory illnesses and greater resource utilization. Our objective was to assess the relationship between SHSe and illness severity/resource utilization among children presenting to the pediatric emergency department (PED) with three common respiratory conditions - asthma, bronchiolitis, and pneumonia. METHODS: A retrospective review of a yearlong consecutive sample of PED patients with SHSe status documentation and asthma, bronchiolitis, or pneumonia diagnoses was performed...
December 8, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27928109/na-ca-2-exchanger-contributes-to-stool-transport-in-mice-with-experimental-diarrhea
#19
Kazuhiro Nishiyama, Kohta Tanioka, Yasu-Taka Azuma, Satomi Hayashi, Yasuyuki Fujimoto, Natsuho Yoshida, Satomi Kita, Sho Suzuki, Hidemitsu Nakajima, Takahiro Iwamoto, Tadayoshi Takeuchi
The Na(+)/Ca(2+) exchanger (NCX) is a bidirectional transporter that is controlled by membrane potential and transmembrane gradients of Na(+) and Ca(2+). To reveal the functional role of NCX on gastrointestinal motility, we have previously used NCX1 and NCX2 heterozygote knockout mice (HET). We found that NCX1 and NCX2 play important roles in the motility of the gastric fundus, ileum and distal colon. Therefore, we believed that NCX1 and NCX2 play an important role in transport of intestinal contents. Here, we investigated the role of NCX in a mouse model of drug-induced diarrhea...
December 8, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27921445/risk-of-neonatal-and-childhood-morbidity-among-preterm-infants-exposed-to-marijuana
#20
Sarah K Dotters-Katz, Marcela C Smid, Tracy A Manuck, Torri D Metz
BACKGROUND: Limited data exist regarding the neonatal and neurodevelopmental outcomes of infants exposed to marijuana (MJ) in-utero, particularly among preterm infants. We hypothesized that MJ-exposed preterm infants would have worse neonatal and childhood developmental outcomes compared to MJ-unexposed infants. METHODS: Secondary analysis of multicenter randomized-controlled trial of antenatal magnesium sulfate for prevention of cerebral palsy was conducted. Singleton non-anomalous infants delivered <35 weeks exposed to MJ in-utero were compared to MJ-unexposed...
December 6, 2016: Journal of Maternal-fetal & Neonatal Medicine
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