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bis monitor

Hui Wang, Bin Fang, Le Zhou, Di Li, Lin Kong, Kajsa Uvdal, Zhangjun Hu
A two-photon active probe for physiological copper (Cu2+ ) detection is expected to play an important role in monitoring biological metabolism. Herein, a novel Schiff base derivative (E)-2,2'-((4-((4-(diethylamino)-2-hydroxybenzylidene)amino)phenyl)azanediyl)bis(ethan-1-ol) (L) with remarkable two-photon activity was developed and synthetically investigated. L presents high selectivity and sensitivity for Cu2+ sensing in ethanol/HEPES buffer (v/v, 1 : 1), which is accompanied by the fluorescence switching "off" and subsequently "on" with the addition of EDTA...
March 13, 2018: Organic & Biomolecular Chemistry
Richard H Epstein, Joni M Maga, Michael E Mahla, Eric S Schwenk, Marc J Bloom
BACKGROUND: Processed electroencephalogram (EEG) monitors help assess the hypnotic state during general anesthesia or sedation. Maintaining the bispectral index (BIS) or state entropy (SE) between 40 and 60 has been recommended to mitigate anesthesia awareness. Nonetheless, SEs > 70 were frequently observed at end-tidal sevoflurane concentrations unlikely to allow awareness. We sought to determine the prevalence of elevated discordant measurements during BIS and SE monitoring. METHODS: Electronic data collected over 11 months at two academic hospitals were retrospectively reviewed...
March 9, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
Alice Miriam Kitay, Marie-Therese Schneebacher, Anne Schmitt, Katharina Heschl, Sascha Kopic, Tariq I Alfadda, Abrar Alsaihati, Alexander Link, John P Geibel
The H+ ,K+ -ATPase was identified as the primary proton secretory pathway in the gastric parietal cell and is the pharmacological target of agents suppressing acid secretion. Recently, we identified a second acid secretory protein expressed in the parietal cell; the vacuolar H+ -ATPase (V-type ATPase). The aim of the present study was to further characterize the H+ -ATPase activation by modulations in extracellular calcium via the calcium sensing receptor (CaSR). Isolated gastric glands were loaded with the pH indicator dye BCECF [2', 7'-bis-(2- carboxyethyl)-5-(and-6)-carboxyfluorescein, acetoxymethyl ester to measure intracellular pH...
March 8, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
Hong-Liang Bao, Yan Xu
Growing evidence indicates that RNA G-quadruplexes have important roles in various processes such as transcription, translation, regulation of telomere length, and formation of telomeric heterochromatin. Investigation of RNA G-quadruplex structures associated with biological events is therefore essential to understanding the functions of these RNA molecules. We recently demonstrated that the sensitivity and simplicity of19 F NMR can be used to directly observe higher-order telomeric G-quadruplexes of labeled RNA molecules in vitro and in living cells, as well as their interactions with ligands and proteins...
April 2018: Nature Protocols
D Canistro, F Vivarelli, S Cirillo, A Soleti, B Albertini, N Passerini, G Merizzi, M Paolini
PURPOSE: We previously showed the positive effects of the new antioxidant molecule bis(1-hydroxy-2,2,6,6-tetramethyl-4-piperidinyl)-decandioate (IAC) in reducing basal hyperglycaemia and relieving glucose intolerance in a diabetes model. However, the chemical properties of IAC did not allow an efficient oral administration, thus representing the main failing of that study. Here, we tested the effect of a new oral delivery system based on solid lipid microparticles (SLMs) in a diabetes mouse model...
March 6, 2018: Journal of Endocrinological Investigation
C-H Wang, J Luo, J Li, J-Z Zhang, S-Y Huang, W Shao, H-S Ma
OBJECTIVE: To investigate the efficacy of inhalational sevoflurane anesthesia induction on inhibiting the stress response to endotracheal intubation in pediatric patients with congenital heart disease (CHD). PATIENTS AND METHODS: Forty ASA physical status I/II pediatric patients scheduled for interventricular septal defect repair or interatrial septal defect repair, were randomly divided into two groups (20 each): intravenous induction group (Group C) and inhalational sevoflurane anesthesia induction group (Group D)...
February 2018: European Review for Medical and Pharmacological Sciences
Ward Eertmans, Cornelia Genbrugge, Margot Vander Laenen, Willem Boer, Dieter Mesotten, Jo Dens, Frank Jans, Cathy De Deyne
BACKGROUND: We investigated the ability of bispectral index (BIS) monitoring to predict poor neurological outcome in out-of-hospital cardiac arrest (OHCA) patients fully treated according to guidelines. RESULTS: In this prospective, observational study, 77 successfully resuscitated OHCA patients were enrolled in whom BIS, suppression ratio (SR) and electromyographic (EMG) values were continuously monitored during the first 36 h after the initiation of targeted temperature management at 33 °C...
March 2, 2018: Annals of Intensive Care
Tânia Melo, Sara S Marques, Isabel Ferreira, Maria Teresa Cruz, Pedro Domingues, Marcela A Segundo, Maria Rosário Marques Domingues
Nitro-fatty acids (NO2 -FA) have been widely studied with regard to their identification, structural characterization, and biological actions. NO2 -FA could also be present endogenously esterified to phospholipids (PL), and NO2 -PL were already detected in cardiac mitochondria from diabetic rats and cardiomyoblasts subjected to starvation. However, the biological actions of NO2 -PL have been overlooked. In this study, we evaluate the antioxidant and anti-inflammatory potential of the nitrated 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) formed in vitro by incubation with NO2 BF4 , in a well-recognized mimetic model of nitroxidative stress...
January 2018: Lipids
Marcus Thudium, Ingo Heinze, Richard K Ellerkmann, Tobias Hilbert
BACKGROUND: Postoperative neurological injury still represents a major cause of morbidity after cardiac surgery. Our objective was to compare the limits as well as advantages of routine monitoring tools for the detection of cerebral function and perfusion deficits during cardiopulmonary bypass in a daily clinical setting. METHODS: Adult patients undergoing elective cardiac surgery with use of cardiopulmonary bypass were included. Patients received monitoring comprising Bispectral Index (BIS), Near Infrared Spectroscopy (NIRS) and assessment of middle cerebral artery flow velocity (MCAV) using transcranial Doppler (TCD) sonography...
January 31, 2018: Heart Surgery Forum
Jonathan Elmer, Jon C Rittenberger
No abstract text is available yet for this article.
February 23, 2018: Resuscitation
Timothy J Boyle, Diana Perales, Jessica M Rimsza, Todd M Alam, Daniel M Boye, Jeremiah M Sears, Jeffery A Greathouse, Richard A Kemp
A pair of thallium salen derivatives was synthesized and characterized for potential use as monitors (or taggants) or as models for Group 13 complexes for subterranean fluid flows. These precursors were isolated from the reaction of thallium ethoxide with N,N'-bis(3,5-di-tert-butylsalicylidene)-ethylenediamine (H2 -salo-But ), or N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-phenylenediamine (H2 -saloPh-But ). The products were identified by single crystal X-ray diffraction as: [((μ-O)2 ,κ1 -(N)(N')salo-But )Tl2 ] (1) and {[((μ-O)2 saloPh-But )Tl2 ][((μ-O)2 ,κ1 -(N)(N')saloPh-But )Tl2 ]} (2)...
February 23, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Florian Prüller, Oliver Leopold Milke, Lukasz Bis, Friedrich Fruhwald, Daniel Scherr, Philipp Eller, Sascha Pätzold, Siegfried Altmanninger-Sock, Peter Rainer, Jolanta Siller-Matula, Dirk von Lewinski
The majority of resuscitated patients present with underlying cardiac disease, and out of these myocardial infarction is most common. Immediate interventional treatment is recommended and routinely requires dual antiplatelet therapy including aspirin and a P2Y12-inhibitor. Therapeutic hypothermia or target temperature management is also recommended in these patients. Cardiogenic shock as well as reduced body temperature impacts platelet reactivity and its medical inhibition. The study aims to quantify aspirin- and P2Y12-mediated platelet inhibition in patients presenting with myocardial infarction and cardiopulmonary resuscitation...
February 21, 2018: Annals of Intensive Care
Rajesh M Shetty, Antonio Bellini, Dhuleep S Wijayatilake, Mark A Hamilton, Rajesh Jain, Sunil Karanth, ArunKumar Namachivayam
BACKGROUND: Patients admitted to intensive care and on mechanical ventilation, are administered sedative and analgesic drugs to improve both their comfort and interaction with the ventilator. Optimizing sedation practice may reduce mortality, improve patient comfort and reduce cost. Current practice is to use scales or scores to assess depth of sedation based on clinical criteria such as consciousness, understanding and response to commands. However these are perceived as subjective assessment tools...
February 21, 2018: Cochrane Database of Systematic Reviews
Edwin A Baquero, Simon Tricard, Yannick Coppel, Juan C Flores, Bruno Chaudret, Ernesto de Jesús
The synthesis of metal nanoparticles (NPs) under controlled conditions in water remains a challenge in nanochemistry. Two different approaches to obtain platinum NPs, which involve the treatment of aqueous solutions of preformed sulfonated (NHC)Pt(ii) dimethyl complexes with carbon monoxide, and of (NHC)Pt(0) diolefin complexes with dihydrogen (NHC = N-heterocyclic carbene), are disclosed here. The resulting NPs were found to be highly stable in water under air for an indefinite time period. Coordination of the NHC ligands to the platinum surface via the carbenic carbon was monitored by solid-state NMR spectroscopy, and the presence of a platinum-carbon bond was unambiguously evidenced by the determination of a13 C-195 Pt coupling constant (1106 and 1050 Hz for NPs containing13 C labeled-NHC ligands and prepared under CO and H2 , respectively)...
February 20, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Oscar J Pozo, Josep Marcos, Olha Khymenets, Andy Pranata, Christopher Fitzgerald, Malcolm Donald McLeod, Cedric Shackleton
The steroid disulfates (aka bis-sulfates or bis(sulfates)) are a significant but minor fraction of the urinary steroid metabolome that have not been widely studied because major components are not hydrolyzed by the commercial sulfatases commonly used in steroid metabolomics. In early studies, conjugate fractionation followed by hydrolysis using acidified solvent (solvolysis) was used for the indirect detection of this fraction by GC-MS. This paper describes the application of a specific LC-MS/MS method for the direct identification of disulfates in urine, and their use as markers for the prenatal diagnosis of disorders causing reduced estriol production: STSD (Steroid Sulfatase Deficiency), SLOS (Smith-Lemli-Opitz Syndrome) and PORD (P450 Oxido-Reductase Deficiency)...
February 19, 2018: Journal of Molecular Endocrinology
Xue Xu, Zhiyong Chen, Xiaoxia Zhu, Dandan Wang, Jun Liang, Cheng Zhao, Xuebing Feng, Jiucun Wang, Hejian Zou, Lingyun Sun
Objectives: This study aims to investigate the pathogenicity and possible mechanisms of S100A9 function in mice models of scleroderma. Materials and Methods: The content of S100A9 in the skin tissues of mice with scleroderma was determined. Different concentrations of bleomycin (BLM) and S100A9 were subcutaneously injected into the backs of mice simultaneously, and then pathological changes in the skin of these mice were monitored. Specifically, the levels of inflammatory cytokines and alpha smooth muscle actin (α-SMA), the activation of extracellular regulated kinase 1/2 (ERK1/2), mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B (NF-κB) pathways, and the expression of the receptor for advanced glycation end-product (RAGE) in the skin were determined...
February 2018: Iranian Journal of Basic Medical Sciences
Mohamed Said Nakhli, Mohamed Kahloul, Taieb Guizani, Chekib Zedini, Ajmi Chaouch, Walid Naija
The role of intraoperative intravenous lidocaine infusion has been previously evaluated for pain relief, inflammatory response, and post-operative recovery, particularly in abdominal surgery. The present study is a randomized double-blinded trial in which we evaluated whether IV lidocaine infusion reduces isoflurane requirement, intraoperative remifentanil consumption and time to post-operative recovery in non-laparoscopic renal surgery. Sixty patients scheduled to undergo elective non-laparoscopic renal surgery under general anesthesia were enrolled to receive either systemic lidocaine infusion (group L: bolus 1...
December 2018: Libyan Journal of Medicine
Timothy J Boyle, Jeremiah M Sears, Jeffery A Greathouse, Diana Perales, Roger Cramer, Orion Staples, Arnold L Rheingold, Eric N Coker, Todd M Roper, Richard A Kemp
A family of magnesium and calcium salen-derivatives was synthesized and characterized for use as subterranean fluid flow monitors. For the Mg complexes, di-n-butyl magnesium ([Mg(Bun)2]) was reacted with N,N'-ethylene bis(salicylideneimine) (H2-salen), N,N'-bis(salicylidene)-1,2-phenylenediamine (H2-saloPh), N,N'-bis(3,5-di-t-butylsalicylidene)-ethylenediamine (H2-salo-But), or N,N'-bis(3,5-di-t-butylsalicylidene)-1,2-phenylenediamine (H2-saloPh-But), and the products were identified by single-crystal X-ray diffraction as [(κ3-(O,N,N'),μ-(O')saloPh)(μ-(O),(κ2-(N,N'),μ-(O')saloPh)2(μ-(O),κ3-(N,N',O')saloPh')Mg4]·2tol (1·2tol; saloPh' = an alkyl-modified saloPh derivative generated in situ), [(κ4-(O,N,N',O')saloPh)Mg(py)2]·py (2·py), [(κ4-(O,N,N',O')salo-But)Mg(py)2] (3), [(κ4-(O,N,N',O')saloPh-But)Mg(py)2]·tol (4·tol), and [(κ3-(O,N,N'),μ-(O')saloPh-But)Mg]2 (5), where tol = toluene; py = pyridine...
February 12, 2018: Inorganic Chemistry
Ramaswamy Babu-Rajendran, Gopalakrishnan Preethi, Rama Krishnan Poopal, Nishikant Patil Nikhil, Krishnamoorthi Vimalkumar, Annamalai Subramanian, Selvaraj Krishna-Kumar
Six phthalic acid esters (PAEs) in human urine sampled randomly from three districts (Erode, Thanjavur, and Perambalur) in Tamil Nadu State and a Union Territory (Pondicherry) in India were quantified. We determined gender-wise, age-wise and location-wise distribution of PAEs and measured estrogenic activity of urine by molecular docking. Bis(2‑ethylhexyl) phthalate (DEHP) was the predominant phthalic acid ester found and had a recovery of 104.5% (ultrasonic extraction at 15 min). Gender-wise (pregnant women: 185 ng/mL, children: 156 ng/mL, female: 151 ng/mL, and male: 138 ng/mL), age-wise (1-20 y: 157 ng/mL, 21-40 y: 156 ng/mL, and >40 y: 146 ng/mL), location-wise (urban: 154 ng/mL, and rural: 151 ng/mL), and region-wise (Erode district: 185 ng/mL, Thanjavur district: 155 ng/mL, Perambalur district: 117 ng/mL, and Pondicherry: 135 ng/mL) differences with total mean of Σ6 PAEs were found...
February 2, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Valeria R Girardi, Juana J Silber, Ruben Darío Falcone, N Mariano Correa
In the present work we show how two biocompatible solvents, methyl laurate (ML) and isopropyl myristate (IPM), can be used as a less toxic alternative to replace the nonpolar component in a sodium 1,4-bis-2-ethylhexylsulfosuccinate (AOT) reverse micelles (RMs) formulation. In this sense, the micropolarity and the hydrogen-bond ability of the interface were monitored through the use of the solvatochromism of a molecular probe (1-methyl-8-oxyquinolinium betaine, QB) and Fourier transform infrared spectroscopy (FTIR)...
February 8, 2018: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
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