Read by QxMD icon Read

Anion gap

Margarita Rivas M, Pamela Belmar Z, Pilar Durruty A, Lilian Sanhueza M, Gloria López S
Normoglycemic diabetic ketoacidosis should be suspected in pregnant women presenting nausea, vomiting, abdominal pain and anorexia. We report a 39 years old woman with a 32 weeks pregnancy who sought emergency care due to hyperemesis. She was hospitalized with the following diagnoses: pregnancy hypertension syndrome, gestational diabetes, morbid obesity and poor prenatal control. The evaluation of the feto-placental unit showed perception of fetal movements, non-reactive non-stress baseline record and a biophysical profile of 6/8...
October 2016: Revista Médica de Chile
Daniel Scotcher, Christopher R Jones, Aleksandra Galetin, Amin Rostami-Hodjegan
Development of sub-models of organs within physiologically-based pharmacokinetic (PBPK) principles and beyond simple perfusion limitations may be challenging because of underdeveloped in vitro-in vivo extrapolation approaches or lack of suitable clinical data for model refinement. However, the advantage of such models in predicting clinical observations in divergent patient groups is now commonly acknowledged. Mechanistic understanding of altered renal secretion in renal impairment is one area that may benefit from such models, despite knowledge gaps in renal pathophysiology (Rowland Yeo et al...
January 5, 2017: Journal of Pharmacology and Experimental Therapeutics
Lee Martin, Alexander L Morritt, Jordan R Lopez, Hiroki Akutsu, Yasuhiro Nakazawa, Shusaku Imajo, Yoshihiko Ihara
We report a novel multilayered organic-inorganic hybrid material, β″-(BEDT-TTF)2[(H2O)(NH4)2Rh(C2O4)3]·18-crown-6. This is the first molecular superconductor to have a superlattice with layers of both BEDT-TTF and 18-crown-6 and also the first with the anion tris(oxalato)rhodate. This is the 2D superconductor with the widest gap between conducting layers, where only a single donor packing motif is observed (β″). The strong 2D nature of this system strongly suggests that the superconducting transition is a Kosterlitz-Thouless transition...
January 5, 2017: Inorganic Chemistry
Katarzyna Pstrowska, Bartłomiej Maciej Szyja, Hanna Czapor-Irzabek, Adam Kiersnowski, Jerzy Walendziewski
The TiO2 /beta-SiC nanocomposites containing 0-25 wt. % of beta-SiC were synthesized by the sol-gel method and tested in the photodegradation of methylene blue and methyl orange water solutions. With the increase of SiC content, only a slight decrease in energy band gap was observed (3.19-3.12 eV), together with significant increase of the surface area of the catalysts (42.7-80.4 m(2) /g). In the synthesized material the anatase phase of TiO2 was present in the form of small agglomerates resulting from the mechanical mixing process...
January 4, 2017: Photochemistry and Photobiology
Vitor H Paschoal, Luiz F O Faria, Mauro C C Ribeiro
Vibrational spectroscopy has continued use as a powerful tool to characterize ionic liquids since the literature on room temperature molten salts experienced the rapid increase in number of publications in the 1990's. In the past years, infrared (IR) and Raman spectroscopies have provided insights on ionic interactions and the resulting liquid structure in ionic liquids. A large body of information is now available concerning vibrational spectra of ionic liquids made of many different combinations of anions and cations, but reviews on this literature are scarce...
January 4, 2017: Chemical Reviews
Mandana Rastegar, Glenn T Nagami
Acid-base disturbances can result from kidney or nonkidney disorders. We present a case of high-volume ileostomy output causing large bicarbonate losses and resulting in a non-anion gap metabolic acidosis. Non-anion gap metabolic acidosis can present as a form of either acute or chronic metabolic acidosis. A complete clinical history and physical examination are critical initial steps to begin the evaluation process, followed by measuring serum electrolytes with a focus on potassium level, blood gas, urine pH, and either direct or indirect urine ammonium concentration...
October 28, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
C Langdon Fielding, Chloe A Meier, Greg K Fellers, K Gary Magdesian
OBJECTIVE To compare results of point-of-care laboratory testing with standard veterinary clinical examination findings at a single time point during endurance competition to identify horses at risk for elimination. ANIMALS 101 endurance horses participating in the 2013 Western States 160-km (100-mile) endurance ride. PROCEDURES At the 58-km checkpoint, blood samples were collected from all horses. Samples were analyzed for pH, Pco2, base excess, anion gap, PCV, and whole blood concentrations of sodium, potassium, chloride, total carbon dioxide, BUN, glucose, and bicarbonate...
January 2017: American Journal of Veterinary Research
Silvia Funes, Helio Autran de Morais
Metabolic acidosis results from an increase in the concentration of a strong anion. Metabolic acidosis is divided into hyperchloremic metabolic acidosis and high anion gap acidosis based on the changes in the anion gap. Hyperchloremic metabolic acidosis is the result of chloride retention, excessive loss of sodium relative to chloride, or excessive gain of chloride relative to sodium. Clinical signs are related to the underlying disease that accompanies the metabolic acidosis. Treatment of hyperchloremic acidosis is based on addressing the underlying disease process...
December 22, 2016: Veterinary Clinics of North America. Small Animal Practice
Silvia Funes, Helio Autran de Morais
High anion gap (AG) metabolic acidoses can be identified by a decrease in pH, decrease in HCO3(-) or base excess, and an increased AG. The AG represents the difference between unmeasured cations and unmeasured anions; it increases secondary to the accumulation of anions other than bicarbonate and chloride. The most common causes of high AG acidosis are renal failure, diabetic ketoacidosis, and lactic acidosis. Severe increases in concentration of phosphorus can cause hyperphosphatemic acidosis.
December 22, 2016: Veterinary Clinics of North America. Small Animal Practice
Yi Wang, Melanie Moses-DeBusk, Lauren Stevens, Junkai Hu, Peter Y Zavalij, Kit Hansell Bowen, Brett I Dunlap, Evan R Glaser, Bryan W Eichhorn
K5Sb4 and K3Sb7 Zintl ion precursors react with Pd(PPh3)4 in ethylenediamine/toluene/PBu4(+) solutions to give crystals of Sb@Pd12@Sb20(n-)/PBu4(+) salts where n = 3, 4. The clusters are structurally identical in the two charge states, with near perfect Ih point symmetry, and can be viewed as an Sb@Pd12 icosahedron centered inside of an Sb20 dodecahedron. The metric parameters suggest very weak Sb-Sb and Pd-Pd interactions with strong radial Sb-Pd bonds between the Sb20 and Pd12 shells. All-electron DFT analysis shows the 3- ion to be diamagnetic with Ih symmetry and a 1...
December 24, 2016: Journal of the American Chemical Society
Tyler J Loftus, Azra Bihorac, Tezcan Ozrazgat-Baslanti, Janeen R Jordan, Chasen A Croft, R Stephen Smith, Philip A Efron, Frederick A Moore, Alicia M Mohr, Scott C Brakenridge
BACKGROUND: Acute kidney injury (AKI) following exploratory laparotomy and temporary abdominal closure (TAC) is poorly understood but clinically significant. We hypothesized that the prevalence of AKI would be highest 96 hours following TAC, early hypoxemia would predict AKI, and that AKI would be an independent predictor of mortality. METHODS: We performed a retrospective analysis of 251 acute care surgery patients managed with TAC by negative pressure wound therapy (NPWT)...
December 22, 2016: Shock
D Vassilyev
The article presents the analysis of the intensive therapy through the correction of persistent hypernatremia in neurosurgical patients after removal of brain tumors. The aim of this work was to evaluate the effectiveness of Sterofundin in the framework of complex therapy of hypernatremia in neurosurgical patients after removal of brain tumors. We analyzed the dynamics of the concentrations of sodium, potassium, chorus of the plasma, anion gap and buffer bases in the postoperative period of these patients. For obtaining reliable results, the patients were divided into groups according to the nature of the treatment: Sterofundin and symptomatic correction of hypotonic solution of sodium chloride, saluretic and Verospiron respectively...
November 2016: Georgian Medical News
S Santhosh, M Mathankumar, S Selva Chandrasekaran, A K Nanda Kumar, P Murugan, B Subramanian
Molybdenum trioxide (MoO3) is a well-known electrochromic material. In the present work, n-type α-MoO3 thin films with both direct and indirect band gaps were fabricated by varying the laser repetition (ablation) rate in a pulsed laser deposition (PLD) system at a constant reactive O2 pressure. The electrochromic properties of the films are compared and correlated to the microstructure and molecular-level coordination. Mixed amorphous and textured crystallites evolve at the microstructural level. At the molecular level, using NMR and EPR, we show that the change in the repetition rate results in a variation of the molybdenum coordination with oxygen: at low repetition rates (2 Hz), the larger the octahedral coordination, and greater the texture, whereas at 10 Hz, tetrahedral coordination is significant...
December 21, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
Jun Haruyama, Keitaro Sodeyama, Yoshitaka Tateyama
All-solid-state Li-ion batteries (ASS-LIBs) are expected to be the next-generation battery, however, their large interfacial resistance hinders their widespread application. To understand and resolve the possible causes of this resistance, we examined mutual diffusion properties of the cation elements at LiCoO2 (LCO) cathode/β-Li3PS4 (LPS) solid electrolyte interface as a representative system as well as the effect of a LiNbO3 buffer layer by first-principles calculations. Evaluating energies of exchanging ions between the cathode and the electrolyte, we found that the mixing of Co and P is energetically preferable to the unmixed states at the LCO/LPS interface...
December 19, 2016: ACS Applied Materials & Interfaces
Karel Matoušovic, Jan Havlín, Otto Schück
Two approaches have been used in clinical evaluation the acid-base status: traditional (bicarbonate-centered) is based on the Henderson-Hasselbalch equation complemented by calculation of the anion gap, and more recent quantitative approach proposed by Stewart and Fencl. The latter method defines the three independent variables, which regulate pH. These include: the difference between the sum of charges carried by strong plasma cations and anions termed the strong ion difference - SID (decrease causes acidosis, and vice versa); the total concentration of the weak non-volatile acids [Atot] (inorganic phosphate and albumin, decrease causes alkalosis and vice versa), and pCO2...
2016: Casopís Lékar̆ů C̆eských
Molin Zhou, Ke Xiao, Xingxing Jiang, Hongwei Huang, Zheshuai Lin, Jiyong Yao, Yicheng Wu
Visible-light-responsive photocatalytic materials have important applications. In this article, through inserting electropositive ion Ba(2+) into the three-dimensional framework of ZnSe, a one-dimensional chalcogenide Ba2ZnSe3 has been obtained by traditional solid-state reaction. It crystallizes in orthorhombic centrosymmetric space group Pnma with unit cell parameters of a = 9.0744(2) Å, b = 4.4229(1) Å, c = 17.6308(4) Å, and Z = 4. Its structure features [ZnSe3](4-) anionic straight chains parallel to the b direction, which are further separated by Ba(2+) cations filling in the cavities...
December 19, 2016: Inorganic Chemistry
Dajeong Yim, Jooyoung Sung, Serom Kim, Juwon Oh, Hongsik Yoon, Young Mo Sung, Dongho Kim, Woo-Dong Jang
A series of dendritic multiporphyrin arrays (PZnTz-nPFB; n = 2, 4, 8) comprising a triazole-bearing focal zinc porphyrin (PZn) with a different number of freebase porphyrin (PFB) wings has been synthesized, and their photoinduced energy transfer process has been evaluated. UV/vis absorption, emission, and time-resolved fluorescence measurements indicated that efficient excitation energy transfer takes place from the focal PZn to PFB wings in PZnTz-nPFB's. The triazole-bearing PZn effectively formed host-guest complexes with anionic species by means of axial coordination with the aid of multiple C-H hydrogen bonds...
December 30, 2016: Journal of the American Chemical Society
Yonatan Oster, Isaiah D Wexler, Samuel N Heyman, Elchanan Fried
A 17-year-old patient with GSD type 1a (von Gierke disease) was hospitalized with an extremely elevated serum lactate following an intercurrent infection and interruption of his frequent intake of carbohydrates. The patient developed shock, oliguric renal failure, and cardiorespiratory failure requiring mechanical ventilation and inotropes. At the peak of metabolic decompensation and clinical instability, serum lactate reached a level of 47.6 mmol/L which was accompanied by a severe anion gap metabolic acidosis with a pH of 6...
2016: Case Reports in Medicine
Cheng-Yang Yue, Xiao-Wu Lei, Yong-Fang Han, Xin-Xiu Lu, Ya-Wei Tian, Jing Xu, Xiao-Fan Liu, Xin Xu
With mixed transition-metal (TM) complex, alkali-metal cations, or halogen anions as structure-directing agents, two types of two-dimensional (2D) layered inorganic-organic hybrid silver bromides were prepared and structurally characterized as K[TM(2,2-bipy)3]2Ag6Br11 (TM = Ni (1), Co (2), Zn (3), Fe (4)) and [TM(2,2-bipy)3]2Ag13Br17 (TM = Ni (5), Co (6), Zn (7), Fe (8)). Compounds 1-4 feature 2D microporous anionic [Ag6Br11](5-) layers composed of [Ag3Br7] secondary building units based on AgBr4 tetrahedral units, and compounds 5-8 contain 2D [Ag13Br16](3-) layers built from the one-dimensional complex [Ag8Br12] and [Ag5Br8] chains...
December 5, 2016: Inorganic Chemistry
Satyawan Nagane, Satishchandra Ogale
We report the synthesis of fully molecular ion (BF4(-))-based organic-inorganic hybrid perovskite CH3NH3Pb(BF4)3, which is a wide band gap semiconductor, and the same can be easily tuned toward the visible by the incorporation of bromide or iodide ions in the crystal framework simply by changing lead precursors. We have also successfully transformed the distorted 3D molecular-ion-induced perovskite to 2D (C4H9NH3)2Pb(BF4)4, (C4H9NH3)2PbBr(4-x)(BF4)x, and (C4H9NH3)2PbI(4-x)(BF4)x perovskites that exhibit the optical absorption over the UV to visible region...
November 17, 2016: Journal of Physical Chemistry Letters
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"