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sulfate magnesium

Kelany A Abd-Elsalam, Khaled M Fares, Montaser A Mohamed, Mohamed F Mohamed, Ahmad M Abd El-Rahman, Moaaz M Tohamy
BACKGROUND: Major abdominal surgeries are associated with severe pain, which can affect respiratory and cardiac functions if insufficiently treated; this increases postoperative morbidity. OBJECTIVE: We aim at evaluating the efficacy of magnesium sulfate as an adjuvant to local anesthetic in an ultrasound-guided transversus abdominis plane (TAP) block for postoperative analgesia in total abdominal hysterectomy. STUDY DESIGN: A prospective, randomized, double-blinded clinical trial...
November 2017: Pain Physician
Irene Corradini, Elisa Focchi, Marco Rasile, Raffaella Morini, Genni Desiato, Romana Tomasoni, Michela Lizier, Elsa Ghirardini, Riccardo Fesce, Diego Morone, Isabella Barajon, Flavia Antonucci, Davide Pozzi, Michela Matteoli
BACKGROUND: The association between maternal infection and neurodevelopmental defects in progeny is well established, although the biological mechanisms and the pathogenic trajectories involved have not been defined. METHODS: Pregnant dams were injected intraperitoneally at gestational day 9 with polyinosinic:polycytidylic acid. Neuronal development was assessed by means of electrophysiological, optical, and biochemical analyses. RESULTS: Prenatal exposure to polyinosinic:polycytidylic acid causes an imbalanced expression of the Na(+)-K(+)-2Cl(-) cotransporter 1 and the K(+)-Cl(-) cotransporter 2 (KCC2)...
November 14, 2017: Biological Psychiatry
Shaohua Yin, Jiannan Pei, Feng Jiang, Shiwei Li, Jinhui Peng, Libo Zhang, Shaohua Ju, Chandrasekar Srinivasakannan
The in situ leaching process of China's unique ion-adsorption rare earth ores has caused severe environmental damages due to the use of (NH4)2SO4 solution. This study reports that magnesium sulfate (MgSO4) as a leaching agent would replace (NH4)2SO4 by ultrasonically assisted leaching to deal with the ammonia-nitrogen pollution problem and enhance leaching process. At leaching conditions of 3wt% MgSO4 concentration, 3:1L/S ratio and 30min, the total rare earth leaching efficiency reaches 75.5%. Ultrasound-assisted leaching experiments show that the leaching efficiency of rare earths is substantially increased by introducing ultrasound, and nearly completely leached out after two stage leaching process...
March 2018: Ultrasonics Sonochemistry
Faraneh Afshar Ebrahimi, Fatemeh Foroozanfard, Esmat Aghadavod, Fereshteh Bahmani, Zatollah Asemi
Magnesium and zinc are known to exert multiple beneficial effects including anti-inflammatory and antioxidant actions. To our knowledge, data on the effects of magnesium and zinc co-supplementation on biomarkers of inflammation and oxidative stress and gene expression related to inflammation in subjects of polycystic ovary syndrome (PCOS) are scarce. This study was conducted to evaluate the effects of magnesium and zinc co-supplementation on biomarkers of inflammation and oxidative stress and gene expression related to inflammation in subjects with PCOS...
November 10, 2017: Biological Trace Element Research
Chuyu Peng, Man He, Beibei Chen, Lijin Huang, Bin Hu
A novel magnetic sulfur-doped porous carbon (MSPC) was fabricated via a simple one-step carbonization of a mixture of sucrose, basic magnesium sulfate whiskers and Fe3O4@SiO2 nanoparticles. Due to the high S content, the prepared MSPC possessed high adsorption capacity for Hg(2+) (343 mg g(-1)) with good selectivity. Based on this, a method coupling magnetic solid phase extraction (MSPE) with inductively coupled plasma mass spectrometry (ICP-MS) was developed for the determination of trace Hg(2+) in environmental water samples...
November 8, 2017: Analyst
Michal Kovo, Noa Mevorach-Zussman, Nizar Khatib, Yuval Ginsberg, Michael Divon, Zeev Weiner, Jacob Bar, Ron Beloosesky
OBJECTIVES: Multiple mechanisms have been proposed for the neuroprotective effects of magnesium sulfate (MgSO4). We aimed to examine the effects of lipopolysaccharide (LPS) and MgSO4 on the placental expression of nuclear factor κ light chain enhancer of activated B cells (NF-κB), interleukin (IL) 6, adrenocorticotropic hormone (ACTH), and nitric oxide synthase (NOS); all known to participate in the inflammatory cascade. METHODS: Placentas were obtained and selected cotyledons cannulated and dually perfused ex vivo...
January 1, 2017: Reproductive Sciences
Parminder Kaur, Tanveer Singh Kundra, Dinesh Sood
Background and Aims: Intravenous regional anesthesia (IVRA) is a very good technique to be used in unstable patients. Various adjuvants have been added, but till date, there is no ideal adjuvant. Clonidine is one of the most widely used adjuvants in IVRA. However, it has many side effects. Hence, the search continues for a better adjuvant. The aim of the present study was to compare the efficacy of clonidine versus MgSO4 as an adjunct to lignocaine in IVRA for postoperative analgesia and to compare their side effect profile...
July 2017: Journal of Anaesthesiology, Clinical Pharmacology
Noémie Delage, Véronique Morel, Pascale Picard, Fabienne Marcaillou, Bruno Pereira, Gisèle Pickering
BACKGROUND: Neuropathic pain is difficult to treat, and the efficacy of recommended drugs remains limited. N-methyl-D-aspartate receptors are implicated, and antagonists are a pharmacological option. Ketamine is widely used in French pain clinics, but without consensus or recommendations. Furthermore, the association of ketamine with magnesium has been poorly studied. The aim of the present study is to evaluate the benefit of ketamine with or without magnesium in refractory neuropathic pain...
November 3, 2017: Trials
Cheryl A Hobbs, Kazuhiko Saigo, Mihoko Koyanagi, Shim-Mo Hayashi
Magnesium stearate is widely used in the production of dietary supplement and pharmaceutical tablets, capsules and powders as well as many food products, including a variety of confectionery, spices and baking ingredients. Although considered to have a safe toxicity profile, there is no available information regarding its potential to induce genetic toxicity. To aid safety assessment efforts, magnesium sulfate was evaluated in a battery of tests including a bacterial reverse mutation assay, an in vitro chromosome aberration assay, and an in vivo erythrocyte micronucleus assay...
2017: Toxicology Reports
Adam Reynolds, Suzanne Slattery, Susan Byrne, Elaine Neary, Siglinde Müllers, Etaoin Kent, Fergal D Malone, Afif El-Khuffash, Cliona McGarvey, Breda C Hayes
BACKGROUND: The optimum timing of administration of magnesium sulfate (MgSO4) in relation to delivery is not known. The general consensus is to achieve administration to the mother at least 4 hours prior to preterm delivery. OBJECTIVE: To investigate potential predictors of umbilical cord blood magnesium (Mg) concentrations, in particular timing of antenatal MgSO4 administration in relation to delivery. STUDY DESIGN: A prospective observational study of infants delivered at less than 32 weeks' gestational age...
October 29, 2017: Journal of Maternal-fetal & Neonatal Medicine
Xiaojing Huang, Shaomin Wang, Dan Mao, Shui Miao, Qing Hu, Shen Ji
In our study, a reliable and rapid analytical method for the simultaneous determination of 15 mycotoxins (aflatoxin B1, aflatoxin B₂, aflatoxin G1, aflatoxin G₂, alternariol, agroclavine, citrinin, diacetoxyscirpenol, deoxynivalenol, fumonisin B1, fumonisin B₂, ochratoxin A, sterigmatocystin, T-2 toxin, and zearalenone) in liquorice using ultra-HPLC coupled to tandem MS was developed and validated. Due to the complex ingredients in liquorice, we chose a QuEChERS-based extraction procedure as the sample pretreatment...
October 26, 2017: Journal of AOAC International
Elaine Vo, Nader N Massarweh, Christy Y Chai, Hop S Tran Cao, Nader Zamani, Sherry Abraham, Kafayat Adigun, Samir S Awad
Importance: Surgical site infections (SSIs) after colorectal surgery remain a significant complication, particularly for patients with cancer, because they can delay the administration of adjuvant therapy. A combination of oral antibiotics and mechanical bowel preparation (MBP) is a potential, yet controversial, SSI prevention strategy. Objective: To determine the association of the addition of oral antibiotics to MBP with preventing SSIs in left colon and rectal cancer resections and its association with the timely administration of adjuvant therapy...
October 18, 2017: JAMA Surgery
Fabiola Sciscione, Francesco Manoli, Elisa Viola, Jitendra Wankar, Claudio Ercolani, Maria Pia Donzello, Ilse Manet
The new octacations [(2-Mepy)8PzM](8+) [M = Mg(II)(H2O), Zn(II)], isolated as iodide salts, were obtained from the corresponding neutral complexes [Py8PzM] (Py = 2-pyridyl; Pz = porphyrazinato dianion) upon quaternization with CH3I of the N atoms of the 2-pyridyl rings under mild experimental conditions. The absorption spectra registered in organic solvents as well as in water (H2O) confirm the presence of the complexes in their monomeric form in all cases. The two octacations behave as photosensitizers in a H2O/sodium dodecyl sulfate solution for the production of singlet oxygen, (1)O2, and exhibit quantum yield values (ΦΔ) 2...
November 6, 2017: Inorganic Chemistry
C C Wang, J Y Tan, L H Liu
The optical constants of sodium chloride (NaCl), potassium chloride (KCl), magnesium chloride (MgCl2), calcium chloride (CaCl2) and sodium sulfate (Na2SO4) solutions at weight fractions ranging from 0 to 16.6667% are measured by the combined ellipsometry-transmission method in the spectral range 0.3-1.0 μm. In the combined method, a modified ellipsometry method is used to measure the refractive indices of liquids, and then the transmission method is conducted to obtain the extinction coefficients using the refractive indices obtained by the ellipsometry method...
September 20, 2017: Applied Optics
Hans C Bernstein, Colin J Brislawn, Karl Dana, Tobias Flores-Wentz, Alexandra B Cory, Sarah J Fansler, James K Fredrickson, James J Moran
Benthic microbial ecosystems are widespread yet knowledge gaps still remain on the relationships between the diversity of species across kingdoms and productivity. Here, we ask two fundamental questions: 1) How does species diversity relate to the rates of primary and heterotrophic productivity? 2) How do diel variations in light-energy inputs influence productivity and microbiome diversity? To answer these questions, microbial mats from a magnesium sulfate hypersaline Lake were used to establish microcosms...
October 17, 2017: FEMS Microbiology Ecology
Bjoern Sommer, Cornelia S Weidinger, Dennis Wolf, Michael Buchfelder, Hubert Schmitt
BACKGROUND: In patients with subarachnoid hemorrhage (SAH), vasospasm remains one of the major complications. The application of intravenous magnesium sulfate (MgSO4) has been under discussion to prevent cerebral ischemia. Our aim was to examine the impact of early MgSO4 administration on local cerebral microcirculation during microsurgical clipping of SAH-related aneurysms. METHODS: The non-invasive laser-Doppler spectrophotometry system "Oxygen-to-See (O2C)" was used in 14 consecutive patients (11 female, 3 male, median age 56...
October 17, 2017: BMC Anesthesiology
Clarence R Manuel, Charles R Ashby, Sandra E Reznik
BACKGROUND: Preterm birth (PTB) is a multifactorial syndrome occurring before the 37th week of full-term pregnancy [1]. Babies delivered preterm experience short-term and long-term complications affecting multiple organ systems, and serious maternal complications include hemorrhage and infection. Each year, an estimated 15 million babies are born preterm, and complications from prematurity are the leading cause of death among children up to 5 years of age [2]. With another increase in PTB rates over the last several years, the United States continues to have the highest incidence of any industrialized country [3]...
October 12, 2017: Current Pharmaceutical Design
Ryota Kitajima, Takeshi Aiba, Tsukasa Kamakura, Kohei Ishibashi, Mitsuru Wada, Yuko Inoue, Koji Miyamoto, Hideo Okamura, Takashi Noda, Satoshi Nagase, Yu Kataoka, Yasuhide Asaumi, Teruo Noguchi, Satoshi Yasuda, Kengo Kusano
A 76-year-old man who had been diagnosed with long-QT syndrome type 2 had frequent syncopal attacks. The electrocardiogram was monitored, and frequent torsades de pointes (TdP) was detected despite administration of conventional medications: oral propranolol, verapamil, intravenous magnesium sulfate, verapamil, and lidocaine. In contrast, 2 μg/kg/min landiolol could completely suppress TdP. Subsequently, an implantable cardioverter defibrillator was placed, and he was diagnosed with silent myocardial ischemia using myocardial perfusion scintigraphy and coronary angiography...
October 2017: Journal of Arrhythmia
D Narasimhulu, A Brown, N M Egbert, M Rojas, S Haberman, A Bhutada, H Minkoff, S Rastogi
OBJECTIVE: The fetus is exposed to magnesium administered to the pregnant mother. However, there is controversy regarding magnesium-related neonatal adverse outcomes, largely driven by a limited understanding of the factors that influence neonatal serum magnesium concentrations and associated outcomes. The objective of this study was to examine the relationship between antenatal maternal magnesium dose and serum concentrations, neonatal serum magnesium concentration and immediate neonatal outcomes...
October 5, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
Mehrdad Mokaram Dori, Farid Foruzin
BACKGROUND: An appropriate anesthesia duration with minimal side effects and prolonged postoperative analgesia are the ideal characteristics of an intrathecal drug used during spinal anesthesia. Neostigmine and magnesium sulphate have been used as spinal anesthetic additives with narcotics and local anesthetics. OBJECTIVES: This study aimed to assess the analgesic properties of intrathecal neostigmine and magnesium sulphate by adding them to intrathecal bupivacaine-fentanyl...
December 2016: Anesthesiology and Pain Medicine
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