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Peter Tzu-Yu Chien et al.
Toxicology and applied pharmacology, 289(2), 349-359 (2015-09-20)
Carbon monoxide (CO) is one of the cytoprotective byproducts of heme oxygenase (HO)-1 and exerts anti-inflammatory action in various models. However, the detailed mechanisms underlying CO-induced HO-1 expression in primary human cardiomyocytes remain largely unidentified. We used primary left ventricle
Rakesh Kumar Gupta et al.
Inorganic chemistry, 52(7), 3687-3698 (2013-03-13)
The synthesis of four novel heteroleptic dipyrrinato complexes [(η(6)-arene)RuCl(2-pcdpm)] (η(6)-arene = C6H6, 1; C10H14, 2) and [(η(5)-C5Me5)MCl(2-pcdpm)] (M = Rh, 3; Ir, 4) containing a new chelating ligand 4-(2-methoxypyridyl)-phenyldipyrromethene (2-pcdpm) have been described. The complexes 1-4 have been fully characterized
Sumit Saha et al.
Inorganic chemistry, 52(5), 2526-2532 (2013-02-21)
The reaction of Ru5(CO)15(μ5-C) with Ni(COD)2 in acetonitrile at 80 °C affords the bimetallic octahedral ruthenium-nickel cluster complex Ru5Ni(NCMe)(CO)15(μ6-C), 3. The acetonitrile ligand in 3 can be replaced by CO and NH3 to yield Ru5Ni(CO)16(μ6-C), 4, and Ru5Ni(NH3)(CO)15(μ6-C), 5, respectively.
T C Ooi et al.
Clinica chimica acta; international journal of clinical chemistry, 446, 97-104 (2015-04-11)
Circulating PCSK9 levels are higher in women than men, in postmenopausal than premenopausal women, and in pregnant than non-pregnant women, suggesting that sex hormones may be related to PCSK9 levels. We have examined the relationship between serum estradiol (E2) and
Alvin A Holder et al.
Dalton transactions (Cambridge, England : 2003), 42(33), 11881-11899 (2013-06-21)
We report the synthesis and characterisation of mixed-metal binuclear ruthenium(II)-vanadium(IV) complexes, which were used as potential photodynamic therapeutic agents for melanoma cell growth inhibition. The novel complexes, [Ru(pbt)2(phen2DTT)](PF6)2·1.5H2O 1 (where phen2DTT = 1,4-bis(1,10-phenanthrolin-5-ylsulfanyl)butane-2,3-diol and pbt = 2-(2'-pyridyl)benzothiazole) and [Ru(pbt)2(tpphz)](PF6)2·3H2O 2
Lipeng Wu et al.
Journal of the American Chemical Society, 135(10), 3989-3996 (2013-02-20)
An efficient and regioselective ruthenium-catalyzed hydroaminomethlyation of olefins is reported. Key to success is the use of specific 2-phosphino-substituted imidazole ligands and triruthenium dodecacarbonyl as catalyst. Both industrially important aliphatic as well as various functionalized olefins react with primary and
Rajendran Manikandan et al.
Organic letters, 16(13), 3568-3571 (2014-06-24)
A Ru-catalyzed cyclization of anilides with propiolates or acrylates affording 2-quinolinones having diverse functional groups in good to excellent yields is described. Later, 2-quinolinones were converted into 3-halo-2-quinolinones and 2-chloroquinolines. The proposed mechanism was strongly supported by experimental evidence and
Rosario Villegas et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 34(21), 7179-7189 (2014-05-23)
Axonal degeneration represents an early pathological event in neurodegeneration, constituting an important target for neuroprotection. Regardless of the initial injury, which could be toxic, mechanical, metabolic, or genetic, degeneration of axons shares a common mechanism involving mitochondrial dysfunction and production
Feng Ye et al.
Dalton transactions (Cambridge, England : 2003), 42(34), 12309-12316 (2013-07-16)
Mastery over the morphology/structure of nanoparticles enables control of their properties and enhancement of their usefulness for a given application. Herein, we report a systematic study on the synthesis of ruthenium nanoparticles in oleylamine, including the tuning of their morphology/shape
Hanan Chweih et al.
Experimental physiology, 100(9), 1073-1092 (2015-06-23)
What is the central question of this study? The assessment of Ca(2+) handling by isolated mitochondria can be biased by dysfunctions secondary to Ca(2+) -induced mitochondrial permeability transition (MPT). As a result of this uncertainty and the differing experimental conditions
Xiao-Long Zhao et al.
Dalton transactions (Cambridge, England : 2003), 42(16), 5764-5777 (2013-03-02)
The ground- and excited-state acid-base properties of [Ru2(bpy)4(H2bipt)]Cl4 1 {bpy = 2,2'-bipyridine, H2bipt = 2,5-bis[1,10]phenanthrolin[4,5-f]-imidazol-2-yl)thiophene} are investigated by emission and UV-visible absorption spectrophotometric pH titrations. The DNA binding properties of 1 are studied by means of DNA viscosity and optical
Huaiyi Huang et al.
Dalton transactions (Cambridge, England : 2003), 44(35), 15602-15610 (2015-08-08)
Ruthenium complexes have been considered as promising substitutes for cisplatin in cancer chemotherapy. However, novel ruthenium-based therapies are faced with some limitations, such as unimpressive cytotoxicity toward solid tumors. Herein, we designed and synthesized phenyl-substituted terpyridyl ruthenium(ii) complexes ([Ru(tpy)(bpy)Cl](+) (Ru1)
James B Gerken et al.
Inorganic chemistry, 52(6), 2796-2798 (2013-03-06)
A modular synthetic method has been developed for the preparation of Ru polypyridyl complexes bearing a terminal alkyne. This method proceeds through a readily accessible intermediate with a silyl-protected alkyne and allows access to a variety of five- and six-coordinate
Sung Jong Yoo et al.
Journal of nanoscience and nanotechnology, 13(5), 3591-3596 (2013-07-19)
Size-controlled PtRu nanoparticles embedded in WO3 were prepared by simultaneous multigun sputtering on pure targets of Pt, Ru, and WO3. The mean diameter of the PtRu nanoparticles, as confirmed by high-resolution transmission electron microscopy, can be varied from -2.3 to
Lutz Ackermann et al.
Topics in current chemistry, 292, 211-229 (2010-01-01)
Stoichiometric cycloruthenation reactions of substrates containing Lewis-basic functionalities set the stage for efficient ruthenium-catalyzed C-H bond functionalization reactions. Thereby, selective addition reactions of C-H bonds across alkenes or alkynes enabled atom-economical synthesis of substituted arenes. More recently, ruthenium-catalyzed direct arylation
Gregory S Smith et al.
Dalton transactions (Cambridge, England : 2003), 40(41), 10793-10800 (2011-08-23)
The introduction of multifunctionalities for tumour targeting is becoming a popular strategy toward the development of new therapeutic agents. In particular, the multifaceted potential of ruthenium(II)-arene complexes show great promise as chemotherapeutics. An ever-increasing number of papers dealing with the
Bill Durham et al.
Biochimica et biophysica acta, 1817(4), 567-574 (2011-09-24)
This review describes the development and application of photoactive ruthenium complexes to study electron transfer and proton pumping reactions in cytochrome c oxidase (CcO). CcO uses four electrons from Cc to reduce O(2) to two waters, and pumps four protons
Weijun Yang et al.
Organic letters, 15(6), 1282-1285 (2013-02-26)
An efficient Ru-catalyzed synthesis of dihydrofuroquinolines from azido-cyclopropyl ketones via the reduction-cyclization-rearrangement process is reported. A plausible reaction mechanism for this process is depicted. Additionally, when the reaction was carried out under H2 (1 atm) in the presence of Pd/C
Denis Kröger et al.
Organic & biomolecular chemistry, 13(26), 7223-7229 (2015-06-09)
Driven by the shortage of known effective possibilities for the synthesis of 4-hydroxy-3,4-dihydro-2H-1,3-thiazine-2-thiones on the one hand and the promising potential of these structures as novel drug candidates on the other hand, synthetic access to 4-hydroxy-3,4-dihydro-2H-1,3-thiazine-2-thiones was developed. The desired
Katharine A Smart et al.
Inorganic chemistry, 52(5), 2654-2661 (2013-02-21)
The coordination of pyridine-2-amino(methyl)dimethylsilane ligands to ruthenium has afforded access to a family of novel complexes that display multicenter Ru-H-Si interactions according to the number of incorporated ligands. The new complexes Ru[κ-Si,N-(SiMe2)N(Me)(C5H4N)](η(4)-C8H12)(η(3)-C8H11) (1), Ru2(μ-H)2(H)2[κ-Si,N-(SiMe2)N(Me)(C5H4N)]4 (2), and Ru(H)[κ-Si,N-(SiMe2)N(Me)(C5H4N)]3 (3) were isolated
M Kiseli et al.
Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology, 35(4), 368-371 (2014-11-11)
The purpose of this study was to investigate whether levels of fetal hypoxia markers, S100 and ischaemia modified albumin (IMA) change in cases of intrauterine growth restriction (IUGR). This case-control study included 15 intrauterine growth restricted fetuses and 20 age-matched
Shujie Zhu et al.
Organic letters, 15(7), 1440-1443 (2013-03-19)
A method for the highly regioselective reductive coupling reaction of N-aryl-α-imino esters with dienes is described. The method utilizes the RuHCl(CO)(PPh3)3/iPrOH catalytic system under an Ar atmosphere and provides α-branched allylic α-amino acid derivatives. Application of this transformation to the
Anna-Maria Spehar-Délèze et al.
Analytical and bioanalytical chemistry, 407(22), 6657-6667 (2015-06-24)
Development of a fully automated electrochemiluminescence (ECL) DNA assay for multiplex detection of six biowarfare agents is described. Aminated-DNA capture probes were covalently immobilised on activated-carbon electrodes and subsequently hybridised to target strands. Detection was achieved via a sandwich-type assay
Matthias Saar et al.
The Prostate, 75(14), 1526-1537 (2015-06-16)
In vivo model systems in prostate cancer research that authentically reproduce tumor growth are still sparse. While orthotopic implantation is technically difficult, particularly in the mouse, most models favor subcutaneous tumor growth. This however provides little information about natural tumor
Nicole L Fry et al.
Accounts of chemical research, 44(4), 289-298 (2011-03-03)
Nitric oxide (NO) can induce apoptosis (programmed cell death) at micromolar or higher doses. Although cell death via NO-induced apoptosis has been studied quite extensively, the targeted delivery of such doses of NO to infected or malignant tissues has not
E Du et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(5), 1422-1427 (2015-01-22)
We developed a microfluidics-based model to quantify cell-level processes modulating the pathophysiology of sickle cell disease (SCD). This in vitro model enabled quantitative investigations of the kinetics of cell sickling, unsickling, and cell rheology. We created short-term and long-term hypoxic
Yan Feng et al.
Nanoscale, 6(11), 6173-6179 (2014-05-06)
Nanomaterials usually exhibit structure-dependent catalytic activity, selectivity, and stability. Herein, we report a universal approach for the synthesis of noble metal nanoparticles with a dendritic structure, which is based on the reduction of metal acetylacetonate precursors in oleylamine at a
Nozomi Saito et al.
Chemical record (New York, N.Y.), 11(4), 186-198 (2011-08-11)
Three novel ruthenium-catalyzed cyclizations of enynes were developed. In each cyclization, a ruthenacyclopentene derived from enyne and Cp*RuCl(cod) is a common intermediate. When an enyne having an alkyl, an ester, or a formyl group on an alkyne was reacted with
M Beye et al.
Physical review letters, 110(18), 186101-186101 (2013-05-21)
We have studied the femtosecond dynamics following optical laser excitation of CO adsorbed on a Ru surface by monitoring changes in the occupied and unoccupied electronic structure using ultrafast soft x-ray absorption and emission. We recently reported [M. Dell'Angela et
Juliano Andreoli Miyake et al.
Anticancer research, 34(4), 1901-1911 (2014-04-03)
Gliomas are primary brain tumours. Gamma-linolenic acid (GLA) exerts anti-proliferative effects. Several ruthenium-containing complexes have antiproliferative effects and can be used as adjuvant therapies in cisplatin-resistant cancer. The present study reports on the anti-proliferative properties and effects on tumour morphology
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