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673811

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Tatsuya Yoshino et al.
Organic letters, 14(16), 4290-4292 (2012-08-09)
A highly efficient total synthesis of the 11-membered cyclic aspercyclides A (1) and B (2) has been achieved by chemo- and regioselective intramolecular oxidative C-O bond formation from differently substituted diphenols.
Alan K Brisdon et al.
Dalton transactions (Cambridge, England : 2003), 44(45), 19717-19731 (2015-07-28)
A series of new perfluoropropenyl-containing phosphines of the type R3-nP(E-CF[double bond, length as m-dash]CFCF3)n (R = Ph, iPr, n = 1, 2; R = tBu, n = 2) have been prepared from the reaction of the hydrofluoroolefin Z-CF3CF[double bond, length
Chao Zhao et al.
Nature communications, 5, 5079-5079 (2014-10-07)
The remarkable stability of peptide nucleic acids (PNAs) towards enzymatic degradation makes this class of molecules ideal to develop as part of a diagnostic device. Here we report the development of chemically engineered PNAs for the quantitative detection of HIV
Jiansheng Liu et al.
Biomaterials, 74, 64-76 (2015-10-09)
Despite optimal therapeutic regimen with currently available antiepileptic drugs (AEDs), approximately a third of epilepsy patients remain drug refractory. Region-specific overexpression of multidrug efflux transporters at the blood-brain barrier, such as P-glycoprotein (P-gp), might contribute to multidrug resistance (MDR) by
Liang Hu et al.
Materials science & engineering. C, Materials for biological applications, 47, 313-324 (2014-12-11)
We used a combination of mesoporous silica nanospheres (MSN) and layer-by-layer (LBL) self-assembly technology to establish a new oral sustained drug delivery system for the poorly water-soluble drug felodipine. Firstly, the model drug was loaded into MSN, and then the
Julia J Griese et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(43), 17189-17194 (2013-10-09)
Although metallocofactors are ubiquitous in enzyme catalysis, how metal binding specificity arises remains poorly understood, especially in the case of metals with similar primary ligand preferences such as manganese and iron. The biochemical selection of manganese over iron presents a
Fumbling at your soul: from celestial to chemical ether, the hypothesis of anesthesia in Emily Dickinson's poem 315 ("He fumbles at your soul").
Claire Poinsot et al.
Anesthesiology, 117(6), 1381-1384 (2012-10-24)
Natasha Arksey et al.
Bioorganic & medicinal chemistry, 22(15), 3931-3937 (2014-07-16)
The 2-[(18)F]fluoro-3-pent-4-yn-1-yloxypyridine ([(18)F]FPyKYNE) analog of the potent non-peptide angiotensin II type 1 receptor (AT1R) blocker losartan was produced via click chemistry linking [(18)F]FPyKYNE to azide-modified tetrazole-protected losartan followed by TFA deprotection. Preliminary small animal imaging with positron emission tomography (PET)
Tiziana Rubino et al.
Neurobiology of disease, 73, 60-69 (2014-10-05)
Current concepts suggest that exposure to THC during adolescence may act as a risk factor for the development of psychiatric disorders later in life. However, the molecular underpinnings of this vulnerability are still poorly understood. To analyze this, we investigated
Nicolas Chevalier et al.
Human reproduction (Oxford, England), 30(2), 447-453 (2014-12-21)
Does a relationship exist between insulin-like peptide 3 (INSL3) and selected environmental endocrine disruptors (EEDs) in human cord blood (cb)? In the whole population (cryptorchid and control boys) cbINSL3 correlated negatively with cb free bisphenol A (BPA) providing indirect evidence
María M Milesi et al.
Molecular and cellular endocrinology, 401, 248-259 (2014-12-09)
We investigated whether neonatal exposure to low doses of endosulfan affects fertility and uterine functional differentiation at pre-implantation in rats. Newborn female rats received the vehicle, 0.2 µg/kg/d of diethylstilbestrol (DES), 6 µg/kg/d of endosulfan (Endo6) or 600 µg/kg/d of endosulfan (Endo600) on
Farewell! flammable agents - ether and cyclopropane.
T C K Brown
Paediatric anaesthesia, 23(2), 195-196 (2012-10-16)
Peter Chhour et al.
ACS nano, 8(9), 9143-9153 (2014-09-05)
Nanoparticles of complex architectures can have unique properties. Self-assembly of spherical nanocrystals is a high yielding route to such systems. In this study, we report the self-assembly of a polymer and nanocrystals into aggregates, where the location of the nanocrystals
Maria Grazia Sarpietro et al.
International journal of pharmaceutics, 471(1-2), 69-74 (2014-05-23)
In this study we prepared solid lipid nanoparticles (SLN), by the phase inversion temperature (PIT) method, using cetyl palmitate as solid lipid and three different non-ionic emulsifiers of the polyoxyethylene ethers family (ceteth-20, isoceteth-20, oleth-20). These SLN were loaded with
Yoshimasa Taniguchi et al.
Journal of agricultural and food chemistry, 63(46), 10181-10191 (2015-10-29)
The bitter taste of beer originates from resins in hops (Humulus lupulus L.), which are classified into two subtypes (soft and hard). Whereas the nature and reactivity of soft-resin-derived compounds, such as α-, β-, and iso-α-acids, are well studied, there
Jiaji Zhao et al.
Organic letters, 14(20), 5362-5365 (2012-10-03)
An efficient synthesis of 2- or 4-iododibenzofurans through CuI-mediated sequential iodination/cycloetherification of two aromatic C-H bonds in o-arylphenols has been developed. Both the preexisting electron-withdrawing groups (NO(2), CN, and CHO) and the newly introduced iodide are readily modified for a
Olumuyiwa N Adedeji et al.
Antimicrobial agents and chemotherapy, 59(9), 5114-5122 (2015-04-22)
Artemisinin-based combination therapies (ACTs) have been adopted by most African countries, including Nigeria, as first-line treatments for uncomplicated falciparum malaria. Fixed-dose combinations of these ACTs, amodiaquine-artesunate (FDC AQAS) and artemether-lumefantrine (AL), were introduced in Nigeria to improve compliance and achieve
Cristiane dos Santos Giuberti et al.
Journal of liposome research, 23(3), 220-227 (2013-05-11)
Recent studies using long-circulating and pH-sensitive liposomes containing cisplatin (SpHL-CDDP) have resulted in a formulation with improved pharmacokinetic, toxicity and tumor localization properties. In this study, SpHL-CDDP were prepared in both laboratory and pilot scales. This study evaluated the possibility
Adam J McShane et al.
Journal of the American Society for Mass Spectrometry, 25(10), 1694-1704 (2014-08-06)
Direct reductive methylation of peptides is a common method for quantitative proteomics. It is an active derivatization technique; with participation of the dimethylamino group, the derivatized peptides preferentially release intense a1 ions. The advantageous generation of a1 ions for quantitative
Patrick Fénichel et al.
Clinical endocrinology, 82(2), 242-247 (2014-05-16)
Cryptorchidism, the most frequent congenital malformation in full-term male newborns, increases the risk of hypofertility and testicular cancer. Most cases remain idiopathic but epidemiological and experimental studies have suggested a role of both genetic and environmental factors. Physiological testicular descent
Işık Ozgüney et al.
European journal of drug metabolism and pharmacokinetics, 39(4), 283-291 (2013-10-08)
The main objective of this study was to investigate the release and pharmacokinetic profiles of ketoprofen (KP) from developed thermosensitive and mucoadhesive liquid suppositories. Thermosensitive liquid suppositories were prepared using KP, poloxamer 407 (P 407), poloxamer 188 (P 188) and
Paul M Flanigan et al.
Journal of the American Society for Mass Spectrometry, 26(5), 716-724 (2015-03-01)
The internal energy of p-substituted benzylpyridinium ions after laser vaporization using low energy, femtosecond duration laser pulses of wavelengths 800 and 1042 nm was determined using the survival yield method. Laser vaporization of dried benzylpyridinium ions from metal slides into a
Justin A Bogart et al.
Inorganic chemistry, 54(6), 2830-2837 (2015-02-25)
Understanding of the sensitivity of the reduction potential of cerium(IV) cations to ligand field strength has yet to benefit from systematic variation of the ligand environment. Detailed analyses for a series of seven cerium(IV) tetrakis(pyridyl-nitroxide) compounds and their cerium(III) analogues
Ai-Bao Xia et al.
The Journal of organic chemistry, 78(3), 1254-1259 (2013-01-05)
The organocatalytic Michael reaction of ketones with γ-monohalonitrodienes catalyzed by chiral prolinethiol ether under solvent-free conditions was developed. The described method represents a novel approach for accessing highly functionalized monohaloalkenes with α, β-stereocenters of up to >99% ee.
Claire Chen et al.
Endocrinology, 155(8), 2976-2985 (2014-06-01)
The ability of the central nervous system to synthesize steroid hormones has wide-ranging implications for physiology and pathology. Among the proposed roles of neurosteroids is the regulation of the LH surge. This involvement in the estrogen-positive feedback demonstrates the integration
Anna K E Gallien et al.
Dalton transactions (Cambridge, England : 2003), 43(35), 13278-13292 (2014-07-25)
Two different structure types were found for a series of mononuclear dinitrosyl complexes of the general formula [RuL2(NO)2X]BF4 (L = monodentate phosphane, X = Cl, Br, I). The {Ru(NO)2}(8)-type target compounds were prepared by the reduction of the respective {RuNO}(6)
Umile Gianfranco Spizzirri et al.
Pharmaceutical development and technology, 20(3), 288-296 (2013-12-03)
In this study, pH-responsive hydrogels, synthesized by the coupling reaction of polyacrylic acid and catechin, are proposed as carriers of oxidable drugs toward the GI tract. The presence of polyphenolic moieties in the network gives the polymers properties suitable for
Keisuke Ikegami et al.
Endocrinology, 156(2), 647-659 (2014-11-19)
In temperate zones, animals restrict breeding to specific seasons to maximize the survival of their offspring. Birds have evolved highly sophisticated mechanisms of seasonal regulation, and their testicular mass can change 100-fold within a few weeks. Recent studies on Japanese
Christy Echakachi Manyi-Loh et al.
Pakistan journal of pharmaceutical sciences, 26(5), 897-906 (2013-09-17)
The growing problem of antibiotic resistance by Helicobacter pylori demands the search for novel compounds, especially from natural sources. We evaluated the anti-H. pylori activity of six local honeys at different concentrations as well as their solvent extracts by the
Rajesh P Haridas et al.
Anesthesia and analgesia, 117(5), 1236-1240 (2013-09-14)
A letter, dated December 1, 1846, from Charles T. Jackson, MD, to Josiah D. Whitney contains a previously unreported description of a Morton ether inhaler and the only known contemporaneous hand-drawn illustrations of this type of ether inhaler. This letter
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