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https://www.readbyqxmd.com/read/28928980/common-yet-elusive-a-case-of-severe-anion-gap-acidosis
#1
Akanksha Agrawal, Marina Kishlyansky, Sylvia Biso, Soumya Patnaik, Chitra Punjabi
Acid-base disturbances are common occurrence in hospitalized patients with life threatening complications. 5-oxoproline has been increasingly recognized as cause of high anion gap metabolic acidosis (AGMA) in association with chronic acetaminophen use. However, laboratory workup for it are not widely available. We report case of 56-year-old female with severe AGMA not attributable to ketoacidosis, lactic acidosis or toxic ingestion. History was significant for chronic acetaminophen use, and laboratory workup negative for all frequent causes of AGMA...
September 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28926691/cobalt-porphyrin-thiazyl-radical-coordination-polymers-towards-metal-organic-electronics
#2
Delia A Haynes, Laura J van Laeren, Orde Q Munro
Herein we delineate an unusual one-dimensional coordination polymer (CP), 3, prepared from S = ½ Co(TPP), 1, (TPP = 5,10,15,20-tetraphenylporphyrin dianion) and S = ½ 4-(4'-pyridyl)-1,2,3,5-dithiadiazolyl (py-DTDA) radical, 2. The atypically long S-S distance for CP 3 (2.12 Å) reflects fractional electron transfer from the formally Co(II) ion into the antibonding π-SOMO of the metal-bound py-DTDA bridging ligand. The bonding in solid CP 3 involves non-integer redox states in a resonance hybrid repeat unit best formulated as [Co(TPP)](0...
September 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28924481/euglycemic-diabetic-ketoacidosis-a-diagnostic-and-therapeutic-dilemma
#3
Prashanth Rawla, Anantha R Vellipuram, Sathyajit S Bandaru, Jeffrey Pradeep Raj
Euglycemic diabetic ketoacidosis (EDKA) is a clinical triad comprising increased anion gap metabolic acidosis, ketonemia or ketonuria and normal blood glucose levels <200 mg/dL. This condition is a diagnostic challenge as euglycemia masquerades the underlying diabetic ketoacidosis. Thus, a high clinical suspicion is warranted, and other diagnosis ruled out. Here, we present two patients on regular insulin treatment who were admitted with a diagnosis of EDKA. The first patient had insulin pump failure and the second patient had urinary tract infection and nausea, thereby resulting in starvation...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28924478/a-rare-cause-of-metabolic-acidosis-ketoacidosis-in-a-non-diabetic-lactating-woman
#4
Gordon Sloan, Amjad Ali, Jonathan Webster
Ketoacidosis occurring during lactation has been described infrequently. The condition is incompletely understood, but it appears to be associated with a combination of increased metabolic demands during lactation, reduction in carbohydrate intake and acute illness. We present a case of a 27-year-old woman, 8 weeks post-partum, who was exclusively breastfeeding her child whilst following a low carbohydrate diet. She developed gastroenteritis and was unable to tolerate an oral diet for several days. She presented with severe metabolic acidosis on admission with a blood 3-hydroxybutyrate of 5...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28915011/highly-controllable-and-efficient-synthesis-of-mixed-halide-cspbx3-x-cl-br-i-perovskite-qds-toward-the-tunability-of-entire-visible-light
#5
Ying Su, Xuejiao Chen, Wenyu Ji, Qinghui Zeng, Zhongyuan Ren, Zisheng Su, Lei Liu
CsPbX3 (X = Cl, Br, I) perovskite quantum dots (PQDs) have been intensively investigated on photoelectric devices due to their superior optical properties. To date, the stability of CsPbX3 PQDs is still an open challenge. The previous mixed-halide CsPbX3 PQDs were generally obtained via the anion-exchange method at 40 °C. Here, the single- and mixed-halide CsPbX3 PQDs are synthesized at high temperature via the hot injection technique. The surface ligands could thus be strongly coordinated onto the surface of the PQDs, which dramatically improve the optical properties of the PQDs...
September 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28914421/acid-base-safety-during-the-course-of-a-very-low-calorie-ketogenic-diet
#6
Diego Gomez-Arbelaez, Ana B Crujeiras, Ana I Castro, Albert Goday, Antonio Mas-Lorenzo, Ana Bellon, Cristina Tejera, Diego Bellido, Cristobal Galban, Ignacio Sajoux, Patricio Lopez-Jaramillo, Felipe F Casanueva
BACKGROUND AND AIMS: Very low-calorie ketogenic (VLCK) diets have been consistently shown to be an effective obesity treatment, but the current evidence for its acid-base safety is limited. The aim of the current work was to evaluate the acid-base status of obese patients during the course of a VLCK diet. METHOD: Twenty obese participants undertook a VLCK diet for 4 months. Anthropometric and biochemical parameters, and venous blood gases were obtained on four subsequent visits: visit C-1 (baseline); visit C-2, (1-2 months); maximum ketosis; visit C-3 (2-3 months), ketosis declining; and visit C-4 at 4 months, no ketosis...
September 15, 2017: Endocrine
https://www.readbyqxmd.com/read/28898583/electronic-structures-of-small-ruo2-n-n-1-to-4-nanoclusters-and-their-anions-and-the-hydrolysis-reactions-with-water
#7
Zongtang Fang, Michael A Outlaw, David A Dixon
Group 8 (RuO2)n (n= 1 to 4) nanoclusters, their anions and the hydrolysis reactions of the neutral clusters have been studied with the density functional theory (DFT) as well as coupled cluster CCSD(T) theory. The ground state is predicted to be a singlet and a doublet for the neutral RuO2 clusters and anionic clusters, respectively. The CCSD(T) method is required to predict the correct ground state. The calculated singlet-triplet gaps ( < 15 kcal/mol) and fluoride affinities ( < 95 kcal/mol) are smaller than those of the Group 4 (MO2)n and Group 6 (MO3)n metal oxide clusters...
September 12, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28895029/chemical-characteristics-of-soluble-aerosols-over-the-central-himalayas-insights-into-spatiotemporal-variations-and-sources
#8
Lekhendra Tripathee, Shichang Kang, Dipesh Rupakheti, Zhiyuan Cong, Qianggong Zhang, Jie Huang
In order to investigate the spatial and temporal variations of aerosols and its soluble chemical compositions of the data gap zone in the central Himalayan region, aerosol samples were collected at four sites. The sampling location were characterized by four different categories, such as urban (Bode), semi-urban site in the northern Indo-Gangetic Plain (Lumbini), rural (Dhunche), and semiarid rural (Jomsom). A total of 230 aerosol samples were collected from four representative sites for a yearlong period and analyzed for water-soluble inorganic ions (WSIIs)...
September 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28894867/do-alkyl-groups-on-aromatic-or-aliphatic-structure-directing-agents-affect-water-stabilities-and-properties-of-hybrid-iodoargentates
#9
Guang-Ning Liu, Xu Zhang, Hong-Mei Wang, Hong Xu, Zi-Han Wang, Xiang-Long Meng, Ya-Nan Dong, Ruo-Yu Zhao, Cuncheng Li
Two types of in situ formed structure directing agents (SDAs) including aromatic triphenylphosphine (PPh3)- and aliphatic piperazine (H2pp)-derivative cations were used to synthesize five new hybrid iodoargentates, namely (EtPPh3)Ag3I4 (1, Et = ethyl), (n-PrPPh3)Ag3I4 (2, n-Pr = n-propyl), (i-PrPPh3)Ag5I6 (3, i-Pr = isopropyl), (Me4pp)0.5AgI2 (4, Me = methyl), and (H3app)2(Ag2I6)·2I·2H2O (5, app = N-aminoethylpiperazine). A comparative study of the two types of SDAs on the structures, stabilities and properties of hybrid iodoargentates was performed in detail...
September 12, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28891102/co-oxidation-by-group-3-metal-monoxide-cations-supported-on-fe-co-4-2
#10
Mingfei Zhou, Chaoxian Chi, Hui Qu, Luyan Meng, Fanchen Kong, Mingbiao Luo
Infrared photodissociation spectroscopy of anions in the form of OMFe(CO)5- (M=Sc, Y, La) indicates that all these anions involve an 18-electron [Fe(CO)4]2- building block that is bonded with the M center through two bridged carbonyl ligands. The OLaFe(CO)5- anion is determined to be a CO-tagged complex involving a [Fe(CO)4]2-[LaO]+ anion core. In contrast, the OYFe(CO)5- anion is characterized to have a [Fe(CO)4]2-[Y(η2-CO2)]+ structure involving a side-on bonded CO2 ligand. The CO-tagged complex and the [Fe(CO)4]2-[Sc(η2-CO2)]+ isomer co-exist for the OScFe(CO)5- anion...
September 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28883241/ketoacidosis-due-to-a-low-carbohydrate-diet-in-an-elderly-woman-with-dementia-and-abnormal-eating-behavior
#11
Hitoshi Iwata, Seiichiro Tsuzuki, Mitsunaga Iwata, Teruhiko Terasawa
Strict restriction of carbohydrates can induce symptomatic ketoacidosis. We herein report a 76-year-old demented woman who developed ketoacidosis after 1 month of abnormal eating behavior involving selectively eating hamburger steak (estimated carbohydrate =12.7 g/day). Laboratory tests showed high-anion-gap metabolic acidosis with elevated blood ketone levels. She was successfully treated with intravenous fluids followed by oral intake of a regular diet. She remained relapse-free after correcting her eating habits...
September 6, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28878933/comparison-of-a-two-bag-system-versus-conventional-treatment-protocol-one-bag-system-in-the-management-of-diabetic-ketoacidosis
#12
Iqbal Munir, Ramiz Fargo, Roger Garrison, Almira Yang, Andy Cheng, Ilho Kang, Ali Motabar, Karen Xu, Lawrence K Loo, Daniel I Kim
OBJECTIVE: We compared the conventional 'one-bag protocol' of management of diabetic ketoacidosis (DKA) with the 'two-bag protocol' which utilizes two bags of fluids, one containing saline and supplemental electrolytes and the other containing the same solution with the addition of 10% dextrose. RESEARCH DESIGN AND METHODS: A retrospective chart review and analysis was done on adult patients admitted for DKA to the Riverside University Health System Medical Center from 2008 to 2015...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/28868358/glycogenic-hepatopathy-a-complication-of-uncontrolled-diabetes
#13
Medha Satyarengga, Yelena Zubatov, Sylvaine Frances, Gopal Narayanswami, Rodolfo J Galindo
OBJECTIVE: To describe a case of hepatomegaly and elevated transaminases in a patient with glycogenic hepatopathy (GH) as a complication of uncontrolled diabetes. METHODS: Clinical, laboratory, and pathological information are described. RESULTS: An 18-year-old male with uncontrolled type 1 diabetes and recurrent diabetic ketoacidosis (DKA) presented with abdominal distention and severe hyperglycemia. Physical examination revealed massive hepatomegaly...
2017: AACE Clinical Case Reports
https://www.readbyqxmd.com/read/28865122/investigation-of-challenging-spin-systems-using-monte-carlo-configuration-interaction-and-the-density-matrix-renormalization-group
#14
Jeremy P Coe, Nuno M S Almeida, Martin J Paterson
We investigate if a range of challenging spin systems can be described sufficiently well using Monte Carlo configuration interaction (MCCI) and the density matrix renormalization group (DMRG) in a way that heads toward a more "black box" approach. Experimental results and other computational methods are used for comparison. The gap between the lowest doublet and quartet state of methylidyne (CH) is first considered. We then look at a range of first-row transition metal monocarbonyls: MCO when M is titanium, vanadium, chromium, or manganese...
September 2, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28851305/nephrolithiasis-and-osteomalacia-associated-with-adefovir-induced-fanconi-syndrome-in-a-patient-with-hepatitis-b
#15
Jueying Lin, Yufeng Zhuo, Dongdong Zhang
BACKGROUND: An increasing number of case reports suggest that acquired renal Fanconi syndrome may be associated with prolonged use of adefovir against hepatitis B virus. Renal Fanconi syndrome is an uncommon disease, and its complication with nephrolithiasis is quite rare. Herein, we report a rare coexistence of nephrolithiasis and acquired renal Fanconi syndrome in a chronic hepatitis B-positive patient with prolonged adefovir therapy. CASE PRESENTATION: The patient presented with osteomalacia and nephrolithiasis...
August 29, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28846401/novel-three-dimensional-semiconducting-materials-based-on-hybrid-d-10-transition-metal-halogenides-as-visible-light-driven-photocatalysts
#16
Cheng-Yang Yue, Bing Hu, Xiao-Wu Lei, Rui-Qing Li, Fu-Qi Mi, Hui Gao, Yan Li, Fan Wu, Chun-Lei Wang, Na Lin
The development of new visible light-driven photocatalysts based on semiconducting materials remains a greatly interesting and challenging task for the purpose of solving the energy crisis and environmental issues. By using photosensitive [(Me)2-2,2'-bipy](2+) (1,1'-dimethyl-2,2'-bipyridinium) cation as template, we synthesized one new type of inorganic-organic hybrid cuprous and silver halogenides of [(Me)2-2,2'-bipy]M8X10 (M = Cu, Ag, X = Br, I). The compounds feature a three-dimensional anionic [M8X10](2-) network composed of a one-dimensional [M8X12] chain based on MX4 tetrahedral units...
August 28, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28840651/two-series-of-homodinuclear-lanthanide-complexes-greatly-enhancing-the-energy-barriers-through-tuning-the-terminal-solvent-ligands-in-dy2-single-molecule-magnets
#17
Yahong Li, Yaru Qin, Haifeng Zhang, Hao Sun, Yangdan Pan, Yu Ge, Yiquan Zhang
The utilization of 2-ethoxy-6-(((2-hydroxy-3-methoxy benzyl)imino)methyl)phenol (H2L) as a chelating ligand, in combination with the employment of alcohols (EtOH and MeOH) as auxiliary ligands, in the 4f-metal chemistry afforded two series of dinuclear lanthanide complexes of compositions [Ln2L2(NO3)2 (EtOH)2] (Ln = Sm (1), Eu (2), Gd (3), Tb (4), Dy (5), Ho (6), Er (7)) and [Ln2L2(NO3)2(MeOH)2] (Ln = Sm (8), Eu (9), Gd (10), Tb (11), Dy (12), Ho (13), Er (14)). Complexes 1-7 are isomorphous. The two LnIII ions in 1-7 are doubly bridged by two deprotonated aminophenoxide oxygen atoms of two μ2: η0:η1:η2:η1:η1:η0 L2- ligands...
August 24, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28829579/anionic-cyclometalated-iridium-iii-complexes-with-a-bis-tetrazolate-ancillary-ligand-for-light-emitting-electrochemical-cells
#18
Elia Matteucci, Andrea Baschieri, Andrea Mazzanti, Letizia Sambri, Jorge Ávila, Antonio Pertegás, Henk J Bolink, Filippo Monti, Enrico Leoni, Nicola Armaroli
A series of monoanionic Ir(III) complexes (2-4) of general formula [Ir(C^N)2(b-trz)](TBA) are presented, where C^N indicates three different cyclometallating ligands (Hppy = 2-phenylpyridine; Hdfppy = 2-(2,4-difluoro-phenyl)pyridine; Hpqu = 2-methyl-3-phenylquinoxaline), b-trz is a bis-tetrazolate anionic N^N chelator (H2b-trz = di(1H-tetrazol-5-yl)methane), and TBA = tetrabutylammonium. 2-4 are prepared in good yields by means of the reaction of the suitable b-trz bidentate ligand with the desired iridium(III) precursor...
August 22, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28814306/blood-acid-base-status-in-impala-aepyceros-melampus-immobilised-and-maintained-under-total-intravenous-anaesthesia-using-two-different-drug-protocols
#19
Gareth E Zeiler, Leith C R Meyer
BACKGROUND: In mammals, homeostasis and survival are dependent on effective trans-membrane movement of ions and enzyme function, which are labile to extreme acid-base changes, but operate efficiently within a narrow regulated pH range. Research in patients demonstrating a pH shifts outside the narrow regulated range decreased the cardiac output and systemic vascular resistance and altered the oxygen binding to haemoglobin. These cardiopulmonary observations may be applicable to the risks associated with anaesthesia and performance of wildlife ungulates on game farms...
August 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28807473/water-treatment-by-magnetic-field-increases-bone-mineral-density-of-rats
#20
Geraldo Balieiro Neto, Jair Rodini Engracia Filho, Bruna Rezende Silva Martins de Oliveira, Cássia Maria Molinaro Coelho, Lilian Francisco Arantes de Souza, Mario Jefferson Quirino Louzada
Water treatment using a magnetic field is an attractive but controversial issue with regard to its effects on human health. This study aimed to investigate the effects of water treatment using a magnetic field on the bone mineral density (BMD), bone mineral content (BMC), bone area (BA), bone resistance (BR), blood gas analysis, blood viscosity, and blood biochemical profile of rats. Forty-eight Wistar rats were divided into 2 groups: control (n = 24) and magnetic water-treated (n = 24). Each of these groups was subdivided into 3 groups to evaluate 3 consumption periods (15, 30, and 45 d)...
August 11, 2017: Journal of Clinical Densitometry
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