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https://www.readbyqxmd.com/read/27829428/aromatherapy-for-the-treatment-of-ponv-in-children-a-pilot-rct
#1
Mathew B Kiberd, Suzanne K Clarke, Jill Chorney, Brandon d'Eon, Stuart Wright
BACKGROUND: Postoperative nausea and vomiting (PONV) is one of the most common postoperative complications of general anesthesia in pediatrics. Aromatherapy has been shown to be effective in treating PONV in adults. Given the encouraging results of the adult studies, we planned to determine feasibility of doing a large-scale study in the pediatric population. METHODS: Our group conducted a pilot randomized controlled trial examining the effect of aromatherapy on post-operative nausea and vomiting in patients 4-16 undergoing ambulatory surgery at a single center...
November 9, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27797970/molecular-pathways-maintaining-mapk-inhibitor-sensitivity-by-targeting-nonmutational-tolerance
#2
Michael P Smith, Claudia Wellbrock
Targeting hyperactive MAPK signaling has proven to be an effective treatment for a variety of different cancers. Responses to the BRAF inhibitors vemurafenib and dabrafenib and the MEK inhibitors trametinib and cobimetinib are, however, transient, and complete remission is rarely observed; rather, outgrowth of resistant clones within progressed tumors appears inevitable. These resistant tumors display great heterogeneity, which poses a major challenge to any salvage therapy. Recent focus has, therefore, been on the early dynamics of inhibitor response during tumor regression...
October 19, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27662609/cationic-platinum-ii-%C3%AF-sih-complexes-in-carbon-dioxide-hydrosilation
#3
Pablo Ríos, Josefina Díez, Joaquín López-Serrano, Amor Rodríguez, Salvador Conejero
The low-electron-count cationic platinum complex [Pt(ItBu')(ItBu)][BAr(F) ], 1, interacts with primary and secondary silanes to form the corresponding σ-SiH complexes. According to DFT calculations, the most stable coordination mode is the uncommon η(1) -SiH. The reaction of 1 with Et2 SiH2 leads to the X-ray structurally characterized 14-electron Pt(II) species [Pt(SiEt2 H)(ItBu)2 ][BAr(F) ], 2, which is stabilized by an agostic interaction. Complexes 1, 2, and the hydride [Pt(H)(ItBu)2 ][BAr(F) ], 3, catalyze the hydrosilation of CO2 , leading to the exclusive formation of the corresponding silyl formates at room temperature...
November 14, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27598702/-inadequate-nutrient-supply-in-barf-feeding-plans-for-a-litter-of-bernese-mountain-dog-puppies-a-case-report
#4
Julia K Mack, Ellen Kienzle
: Anamnesis: A litter of Bernese Mountain Dog-puppies (6 weeks of age) was meant to be fed a "BARF" (bones and raw food) diet. The breeder asked for advice regarding the nutritional adequacy of the feeding plans that she had compiled for the different growth stages. The anamnesis showed the puppies to be underweight for their age and expected adult body mass at the time of request for a ration check. The bitch had almost stopped lactating. Ration check: The review of the feeding plans for the different growth stages revealed a deficient energy supply for all stages and at times an inadequate protein supply...
October 12, 2016: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/27529361/the-influence-of-peripheral-substituent-modification-on-p-v-mn-iii-and-mn-v-o-corrolazines-x-ray-crystallography-electrochemical-and-spectroscopic-properties-and-hat-and-oat-reactivities
#5
Evan E Joslin, Jan Paulo T Zaragoza, Regina A Baglia, Maxime A Siegler, David P Goldberg
The influence of remote peripheral substitution on the physicochemical properties and reactivity of phosphorus and manganese corrolazine (Cz) complexes was examined. The substitution of p-MeO for p-t-Bu groups on the eight phenyl substituents of the β-carbon atoms of the Cz ring led to changes in UV-vis transitions and redox potentials for each of the complexes. The oxygen atom transfer (OAT) and hydrogen atom transfer (HAT) reactivity of the Mn(V)(O) complexes was also influenced by p-MeO substitution. The OAT reactivity of Mn(V)(O)(MeOP8Cz) (MeOP8Cz = octakis(p-methoxyphenyl)corrolazinato(3-)) with triarylphosphine (PAr3) substrates led to second-order rate constants from 10...
September 6, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/27264840/bidentate-forms-of-%C3%AE-triketimines-syntheses-characterization-and-outstanding-performance-of-enamine-diimine-cobalt-complexes-in-isoprene-polymerization
#6
Mohammed N Alnajrani, Francis S Mair
New cationic enamine-β-diimine cobalt complex [LCoBr·THF][BArF] () and its neutral analogue [LCoBr2] () where L = [(2,4,6-Me3-C6H2)NHCMe[double bond, length as m-dash]C{CMe[double bond, length as m-dash](N-2,4,6-Me3(C6H2))}2] and BArF(-) = [{3,5-(CF3)2C6H3}4B](-), were synthesised and then characterized by single-crystal X-ray diffraction, MALDI-MS, IR and elemental analysis. These complexes, the first examples reported where putatively tridentate β-triketimines prefer a bidentate coordination mode, were examined as catalysts for the polymerization of isoprene, activated by diethylaluminium chloride (DEAC) or ethylaluminium sesquichloride (EASC)...
June 21, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27203383/gyroscope-like-complexes-based-on-dibridgehead-diphosphine-cages-that-are-accessed-by-three-fold-intramolecular-ring-closing-metatheses-and-encase-fe-co-3-fe-co-2-no-and-fe-co-3-h-rotators
#7
Georgette M Lang, Takanori Shima, Leyong Wang, Kyle J Cluff, Katrin Skopek, Frank Hampel, Janet Blümel, John A Gladysz
Reactions of trans-Fe(CO)3(P((CH2)mCH═CH2)3)2 (m = a/4; b/5, c/6, e/8) and Grubbs' catalyst (12-24 mol %, CH2Cl2, reflux) give the cage-like trienes trans- Fe(CO)3(P((CH2)mCH═CH(CH2)m)3 P) (3a-c,e, 60-81%). Hydrogenations (ClRh(PPh3)3, 60-80 °C) yield the title compounds trans- Fe(CO)3(P((CH2)n)3 P) (4a-c,e, 74-86%; n = 2m + 2), which have idealized D3h symmetry. A crystal structure of 4c suggests enough van der Waals clearance for the Fe(CO)3 moiety to rotate within the three P(CH2)14P linkages; structures of E,E,E-3a show rotation to be blocked by the shorter P(CH2)4CH═CH(CH2)4P linkages...
June 22, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27159335/iridium-catalyzed-selective-isomerization-of-primary-allylic-alcohols
#8
Houhua Li, Clément Mazet
This Account presents the development of the iridium-catalyzed isomerization of primary allylic alcohols in our laboratory over the past 8 years. Our initial interest was driven by the long-standing challenge associated with the development of a general catalyst even for the nonasymmetric version of this seemingly simple chemical transformation. The added value of the aldehyde products and the possibility to rapidly generate molecular complexity from readily accessible allylic alcohols upon a redox-economical isomerization reaction were additional sources of motivation...
June 21, 2016: Accounts of Chemical Research
https://www.readbyqxmd.com/read/27108889/thallophilic-tl-i-tl-i-contacts-mediated-by-tl-aryl-interactions-a-computational-study
#9
Laura Weston, Barnaby T Pownall, Francis S Mair, Joseph J W McDouall
A computational study is presented of a complex of thallium with a neutral β-triketimine ligand which was found to form dimers with close Tl-Tl interactions. Single point energies, using the crystallographic structures, suggest that the system is bound only when BArF counter ions are included in the calculations. Energy decomposition analysis of the system was carried out in order to investigate the nature of the bonding. Across the methods, calculations show the electrostatic interaction to be repulsive for the dimer with no counter ions, but attractive when BArF counter ions are included...
May 28, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27007878/gyroscope-like-molecules-consisting-of-trigonal-or-square-planar-osmium-rotators-within-three-spoked-dibridgehead-diphosphine-stators-syntheses-substitution-reactions-structures-and-dynamic-properties
#10
Tobias Fiedler, Nattamai Bhuvanesh, Frank Hampel, Joseph H Reibenspies, John A Gladysz
Reactions of (NH4)2OsX6 (X = Cl, Br) with CO and the phosphines P((CH2)mCH[double bond, length as m-dash]CH2)3 (m = 6, a; 7, b; 8, c) give cis,cis,trans-Os(CO)2(X)2(P((CH2)mCH[double bond, length as m-dash]CH2)3)2 (46-73%). These are treated with Grubbs' catalyst (7 mol%, 0.0010 M, C6H5Cl). Subsequent hydrogenations (PtO2) yield the gyroscope like complexes cis,cis,trans-Os(CO)2(X)2(P((CH2)n)3P) (n = 2m + 2; X = Cl, 6a-c; Br, 7a-c ; 5-31%) and the isomers cis,cis,trans-Os(CO)2(X)2(P(CH2)n-1CH2)((CH2)n)(P(CH2)n-1CH2) (X = Cl, 6'ac; Br, 7'a-c;12-51%) derived from a combination of interligand and intraligand metatheses...
April 28, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/26998637/correlation-between-the-selectivity-and-the-structure-of-an-asymmetric-catalyst-built-on-a-chirally-amplified-supramolecular-helical-scaffold
#11
Alaric Desmarchelier, Xavier Caumes, Matthieu Raynal, Anton Vidal-Ferran, Piet W N M van Leeuwen, Laurent Bouteiller
For the first time, supramolecular helical rods composed of an achiral metal complex and a complementary enantiopure monomer provided a good level of enantioinduction in asymmetric catalysis. Mixtures containing an achiral ligand monomer (BTA(PPh2), 2 mol %) and an enantiopure ligand-free comonomer (ester BTA, 2.5 mol %), both possessing a complementary benzene-1,3,5-tricarboxamide (BTA) central unit, were investigated in combination with [Rh(cod)2]BArF (1 mol %) in the asymmetric hydrogenation of dimethyl itaconate...
April 13, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/26959702/terpyridine-molybdenum-dinitrogen-chemistry-synthesis-of-dinitrogen-complexes-that-vary-by-five-oxidation-states
#12
Máté J Bezdek, Sheng Guo, Paul J Chirik
A bimetallic molybdenum complex bridged by an activated dinitrogen ligand and supported by phosphine and terpyridine ligands, [{((Ph)Tpy)(PPh2Me)2Mo}2(μ2-N2)][BArF(24)]2 [(Ph)Tpy = 4'-Ph-2,2',6',2″-terpyridine; ArF(24) = (C6H3-3,5-(CF3)2)4], was synthesized and structurally characterized, and its electronic structure was determined using a combination of experimental and density functional theory computational methods. Each molybdenum atom is best described as molybdenum(II) bridged by a modestly activated [N2](2-) ligand...
March 21, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/26943344/effects-of-sleep-disruption-and-high-fat-intake-on-glucose-metabolism-in-mice
#13
Jacqueline M Ho, R Paulien Barf, Mark R Opp
Poor sleep quality or quantity impairs glycemic control and increases risk of disease under chronic conditions. Recovery sleep may offset adverse metabolic outcomes of accumulated sleep debt, but the extent to which this occurs is unclear. We examined whether recovery sleep improves glucose metabolism in mice subjected to prolonged sleep disruption, and whether high fat intake during sleep disruption exacerbates glycemic control. Adult male C57BL/6J mice were subjected to 18-h sleep fragmentation daily for 9 days, followed by 1 day of recovery...
June 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/26918320/werner-complexes-with-%C3%AF-dimethylaminoalkyl-substituted-ethylenediamine-ligands-bifunctional-hydrogen-bond-donor-catalysts-for-highly-enantioselective-michael-additions
#14
Subrata K Ghosh, Carola Ganzmann, Nattamai Bhuvanesh, John A Gladysz
The racemic carbonate complex [Co(en)2 O2 CO](+) Cl(-) (en=1,2-ethylenediamine) and (S)-[H3 NCH((CH2 )n NHMe2 )CH2 NH3 ](3+) 3 Cl(-) (n=1-4) react (water, charcoal, 100 °C) to give [Co(en)2 ((S)-H2 NCH((CH2 )n NHMe2 )CH2 NH2 )](4+) 4 Cl(-) (3 a-d H(4+) 4 Cl(-) ) as a mixture of Λ/Δ diastereomers that separate on chiral-phase Sephadex columns. These are treated with NaOH/Na(+) BArf (-) (BArf =B(3,5-C6 H3 (CF3 )2 )4 ) to give lipophilic Λ- and Δ-3 a-d(3+) 3 BArf (-) , which are screened as catalysts (10 mol %) for additions of dialkyl malonates to nitroalkenes...
March 18, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/26709440/synthesis-of-spiro-ketals-orthoesters-and-orthocarbonates-by-cpru-catalyzed-decomposition-of-%C3%AE-diazo-%C3%AE-ketoesters
#15
Cecilia Tortoreto, Thierry Achard, Léo Egger, Laure Guénée, Jérôme Lacour
Reactions of α-diazo-β-ketoesters with cyclic ketones, lactones, and carbonates are reported. Thanks to the combined use of salt [CpRu(CH3CN)3][BArF] and 1,10-phenanthroline as catalyst for the diazo decomposition, effective and practical syntheses of spiro bicyclic ketals, orthoesters, and orthocarbonates are afforded.
January 15, 2016: Organic Letters
https://www.readbyqxmd.com/read/26593644/-raw-meat-based-diets-rmbd-as-a-feeding-principle-for-dogs
#16
REVIEW
P Kölle, M Schmidt
BARF (Bone And Raw Food) is an increasing trend for feeding dogs in Germany. This article provides an overview of the history and principles of this type of feeding. Risks of feeding raw-meat diets include infections of dogs with parasites, bacteria and viruses. Some of these pathogenic organisms also have zoonotic potential. Additionally, raw-meat diets often show nutritional imbalances. Over-supplementation and deficiencies of nutrients are frequently found, especially regarding calcium, the trace elements copper, zinc and iodine, vitamins A and D and the calcium   :   phosphorus ratio...
2015: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/26530877/creatine-and-creatinine-contents-in-different-diet-types-for-dogs-effects-of-source-and-processing
#17
B Dobenecker, U Braun
UNLABELLED: The concentrations of creatine and its degradation product creatinine were determined in a variety of unprocessed as well as processed feedstuffs suitable for dogs. Unprocessed feedstuffs were categorised as single feedstuffs, bone and raw food diets (BARF), and small vertebrates, for example prey animals. Processed feedstuffs were categorised as meat/meat and bone meals, complete wet diets and complete dry diets. The feedstuffs were chosen to cover a broad range of each of the three defined processed and unprocessed feed categories available on the market without further subclustering...
December 2015: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/26355601/asymmetric-hydroformylation-of-heterocyclic-olefins-mediated-by-supramolecularly-regulated-rhodium-bisphosphite-complexes
#18
Laura Rovira, Mónica Vaquero, Anton Vidal-Ferran
Rhodium complexes derived from conformationally transformable α,ω-bisphosphite ligands combined with a suitable alkali metal BArF salt as a regulation agent (RA) provide high regio- and enantioselectivities in the asymmetric hydroformylation (AHF) of three heterocyclic olefins. The outcome of the AHF could be exquisitely regulated by choosing the appropriate RA with an increase in the ee, the reversal of the regioselectivity, or the complete suppression of one byproduct.
October 16, 2015: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/26329692/time-dependent-effects-of-cx3cr1-in-a-mouse-model-of-mild-traumatic-brain-injury
#19
Heidi Y Febinger, Hannah E Thomasy, Maria N Pavlova, Kristyn M Ringgold, Paulien R Barf, Amrita M George, Jenna N Grillo, Adam D Bachstetter, Jenny A Garcia, Astrid E Cardona, Mark R Opp, Carmelina Gemma
BACKGROUND: Neuroinflammation is an important secondary mechanism that is a key mediator of the long-term consequences of neuronal injury that occur in traumatic brain injury (TBI). Microglia are highly plastic cells with dual roles in neuronal injury and recovery. Recent studies suggest that the chemokine fractalkine (CX3CL1, FKN) mediates neural/microglial interactions via its sole receptor CX3CR1. CX3CL1/CX3CR1 signaling modulates microglia activation, and depending upon the type and time of injury, either protects or exacerbates neurological diseases...
2015: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/26249141/neutral-and-cationic-molybdenum-imido-alkylidene-n-heterocyclic-carbene-complexes-reactivity-in-selected-olefin-metathesis-reactions-and-immobilization-on-silica
#20
Suman Sen, Roman Schowner, Dominik A Imbrich, Wolfgang Frey, Michael Hunger, Michael R Buchmeiser
The synthesis and single-crystal X-ray structures of the novel molybdenum imido alkylidene N-heterocyclic carbene complexes [Mo(N-2,6-Me2C6H3)(IMesH2)(CHCMe2Ph)(OTf)2] (3), [Mo(N-2,6-Me2C6H3)(IMes)(CHCMe2Ph)(OTf)2] (4), [Mo(N-2,6-Me2C6H3)(IMesH2)(CHCMe2Ph)(OTf){OCH(CF3)2}] (5), [Mo(N-2,6-Me2C6H3)(CH3CN)(IMesH2)(CHCMe2Ph)(OTf)](+)BArF(-) (6), [Mo(N-2,6-Cl2C6H3)(IMesH2)(CHCMe3)(OTf)2] (7) and [Mo(N-2,6-Cl2C6H3)(IMes)(CHCMe3)(OTf)2] (8) are reported (IMesH2=1,3-dimesitylimidazolidin-2-ylidene, IMes=1,3-dimesitylimidazolin-2-ylidene, BArF(-)=tetrakis-[3,5-bis(trifluoromethyl)phenyl] borate, OTf=CF3SO3(-))...
September 21, 2015: Chemistry: a European Journal
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