显示 1-30 共 74 条结果 关于 "GF37939506"
George Psomas et al.
Dalton transactions (Cambridge, England : 2003), 42(18), 6252-6276 (2013-03-27)
The structural features of copper(II), nickel(II), cobalt(II) and zinc(II) complexes with the antimicrobial drugs quinolones and non-steroidal anti-inflammatory drugs (NSAIDs) as ligands are discussed. The binding properties of these complexes to biomolecules (calf-thymus DNA, bovine or human serum albumin) are...
William A Dew et al.
Chemosphere, 112, 519-525 (2014-03-19)
The olfactory system of fish comprises several classes of olfactory sensory neurons (OSNs). The odourants L-alanine and taurocholic acid (TCA) specifically activate microvillous or ciliated OSNs, respectively, in fish. We recorded electro-olfactograms (EOG) in fathead minnows (Pimephales promelas; a laboratory-reared...
R H Kadam et al.
Journal of nanoscience and nanotechnology, 14(6), 4101-4107 (2014-04-18)
Ferrite samples with a chemical formula Co0.5Ni0.5Al(x)Fe(2-x)O4 (where x = 0.0, 0.25, 0.5, 0.75 and 1.0) were synthesized by sol-gel auto-combustion method. The synthesized samples were annealed at 600 degrees C for 4 h. An analysis of X-ray diffraction (XRD)...
Jodi L Boer et al.
Archives of biochemistry and biophysics, 544, 142-152 (2013-09-17)
This review describes the functions, structures, and mechanisms of nine nickel-containing enzymes: glyoxalase I, acireductone dioxygenase, urease, superoxide dismutase, [NiFe]-hydrogenase, carbon monoxide dehydrogenase, acetyl-coenzyme A synthase/decarbonylase, methyl-coenzyme M reductase, and lactate racemase. These enzymes catalyze their various chemistries by using...
Stephanie K Fabbro et al.
Current allergy and asthma reports, 14(10), 463-463 (2014-08-26)
Systemic contact dermatitis (SCD), a cutaneous reaction that is a direct manifestation of systemic exposure to a known allergen in a sensitized individual, has been increasingly recognized as a cause of persistent cutaneous contact dermatitis that is refractory to conventional...
Meinar Nur Ashrin et al.
Journal of immunology (Baltimore, Md. : 1950), 192(9), 4025-4031 (2014-03-29)
Ni is the most frequent cause of contact allergy induced by metals. However, the underlying mechanism of this induction is unknown. Our previous research demonstrates that activation of dendritic cells (DCs) through p38MAPK/MKK6 is required for Ni-induced allergy in mice....
John C Wataha et al.
Expert review of medical devices, 10(4), 519-539 (2013-07-31)
The use of nickel casting alloys for long-term restorations in dentistry has long been controversial. A 'tug-of-war' between economic, engineering and biological considerations is central to this controversy; nickel-casting alloys have low costs and favorable physical properties, but are corrosion-prone...
Jacob P Thyssen et al.
Contact dermatitis, 68(1), 3-14 (2012-07-06)
Nickel is used in coins because the metal has beneficial properties, including price, colour, weight, and corrosion resistance, and also because it is easy to stamp. It has often been claimed that the duration of skin contact with coins is...
Sébastien Hulo et al.
Toxicology letters, 226(1), 63-69 (2014-02-11)
To evaluate manganese in exhaled breath condensate (Mn-EBC) as an indicator of exposure to fumes from metal inert gas welding process. We collected EBC and urine from 17 welders and 16 unexposed control subjects after 5 days exposure. Concentrations of...
Agnieszka J Bednarska et al.
Ecotoxicology and environmental safety, 108, 242-248 (2014-08-12)
Although terrestrial invertebrates are often exposed to mixtures of chemicals in the field, little is known about their combined effects on metabolism. We studied the effects of nickel (Ni), chlorpyrifos (CPF) and their mixtures on the respiration rate of the...
Erkai He et al.
Environmental pollution (Barking, Essex : 1987), 188, 17-26 (2014-02-18)
Protons and other cations may inhibit metal uptake and alleviate metal toxicity in aquatic organisms, but less is known about these interactions in soil organisms. The present study investigated the influence of solution chemistry on uptake and toxicity of Ni...
M Rizzi et al.
Cell proliferation, 47(6), 578-586 (2014-09-17)
Textiles used to make clothing can represent a source, often ignored, of chemicals potentially noxious to both skin and the whole organism. Among the most frequently produced potentially noxious chemical manufacturing by-products are formaldehyde (FA), nickel (Ni) and hexavalent chromium...
Filaggrin is a predominant member of the denaturation-resistant nickel-binding proteome of human epidermis.
Katrine Ross-Hansen et al.
The Journal of investigative dermatology, 134(4), 1164-1166 (2013-10-26)
Natalie B Aquino et al.
Journal of environmental science and health. Part C, Environmental carcinogenesis & ecotoxicology reviews, 30(3), 189-224 (2012-09-14)
During the past half-century, incidences of breast cancer have increased globally. Various factors--genetic and environmental--have been implicated in the initiation and progression of this disease. One potential environmental risk factor that has not received a lot of attention is the...
Maryam Ezoddin et al.
Environmental technology, 35(17-20), 2401-2409 (2014-08-26)
A microextraction method based on ultrasound-assisted surfactant-enhanced emulsification using solidification of a floating organic droplet (UASEME-SFO) was evaluated for simultaneous determination of Cd and Ni in water and tea samples followed by flame atomic absorption spectrometry. In the UASEME-SFO technique...
Lucía Saya et al.
Organic letters, 16(19), 5008-5011 (2014-09-19)
A highly diastereo- and chemoselective intramolecular nickel-catalyzed cycloaddition of alkene- and alkyne-tethered alkynylidenecyclopropanes is reported. The method constitutes the first fully intramolecular [3 + 2 + 2] alkylidenecyclopropropane cycloaddition occurring via a proximal cleavage of the cyclopropane and makes it...
Mohd Talha et al.
Materials science & engineering. C, Materials for biological applications, 33(7), 3563-3575 (2013-08-06)
The field of biomaterials has become a vital area, as these materials can enhance the quality and longevity of human life. Metallic materials are often used as biomaterials to replace structural components of the human body. Stainless steels, cobalt-chromium alloys...
Som Niyogi et al.
Aquatic toxicology (Amsterdam, Netherlands), 150, 36-44 (2014-03-19)
The freshwater pulmonate snail, Lymnaea stagnalis, is the most sensitive aquatic organism tested to date for Ni. We undertook a series of experiments to investigate the underlying mechanism(s) for this observed hypersensitivity. Consistent with previous experiments, juvenile snail growth in...
Matej Adámik et al.
Biochemical and biophysical research communications, 456(1), 29-34 (2014-12-03)
Site-specific DNA recognition and binding activity belong to common attributes of all three members of tumor suppressor p53 family proteins: p53, p63 and p73. It was previously shown that heavy metals can affect p53 conformation, sequence-specific binding and suppress p53...
Zong Xiang Liu et al.
The Chinese journal of dental research : the official journal of the Scientific Section of the Chinese Stomatological Association (CSA), 17(2), 111-116 (2014-12-23)
To evaluate morphological changes of the apical surface after root canal preparation with 1 mm beyond the apical foramen using ProTaper Universal (PTU) files, K3 files and Twisted files (TF), respectively. Seventy teeth with a centered apical foramen and 70...
Yang Liu et al.
Chemosphere, 112, 282-288 (2014-07-23)
Metals are always found in the environment as mixtures rather than as solitary elements. However, effect models such as biotic ligand models (BLMs) are usually derived for toxicity prediction of single metals. Our study aimed at predicting mixture toxicity of...
Hu Liu et al.
Journal of chromatography. A, 1344, 59-65 (2014-04-29)
This work proposed an integrative method of protein refolding and purification by like-charged resin facilitated refolding and metal-chelate affinity adsorption. Hexahistidine-tagged enhanced green fluorescence protein (EGFP) was overexpressed in Escherichia coli as inclusion bodies (IBs), and then the protein was...
Gary A Molander et al.
Organic letters, 16(7), 1904-1907 (2014-03-29)
A general method for the alkenylation of alkyl electrophiles using nearly stoichiometric amounts of the air- and moisture-stable potassium organotrifluoroborates has been developed. Various functional groups were tolerated on both the nucleophilic and electrophilic partner. Reactions of highly substituted E-...
Joe C Polacco et al.
Plant science : an international journal of experimental plant biology, 199-200, 79-90 (2012-12-26)
We propose experimental strategies to expand our understanding of the role of Ni in plants, beyond the Ni-metallocenter of urease, still the only identified Ni-containing plant enzyme. While Ni has been considered an essential mineral for plants there is a...
Kaoru Onami et al.
The Journal of investigative dermatology, 134(7), 1951-1960 (2014-02-18)
Although extracellular adenosine 5'-triphosphate (eATP) has a crucial role in the sensitization phase of contact hypersensitivity (CHS), the mechanism by which hapten causes keratinocyte cell death and ATP release is unknown. We examined the time course of cell death, reactive...
Barbara Zambelli et al.
Metal ions in life sciences, 13, 321-357 (2014-01-29)
This review focuses on the impact of nickel on human health. In particular, the dual nature of nickel as an essential as well as toxic element in nature is described, and the main forms of nickel that can come in...
Gintaras Svecevičius et al.
Bulletin of environmental contamination and toxicology, 92(4), 440-445 (2014-03-04)
One-year-old Atlantic salmon smolts were exposed for 2 weeks either to six priority heavy metal mixture or to Ni, Pb, and Cr singly at a concentration corresponding to Lithuanian inland water standards: Cu - 0.01, Zn - 0.1, Ni -...
Ruoyu Guo et al.
Gene, 546(2), 378-385 (2014-05-27)
In this study, we evaluated a novel microsomal glutathione S-transferase3 (MGST3) gene from the dinoflagellate Prorocentrum minimum, and examined its expression pattern in response to copper-and nickel-induced stresses. The full length of PmMGST3 was 732 bp, ranging from the dinoflagellate...
Hao Yuan et al.
Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons, 72(4), 764-772 (2014-03-19)
In surgery-first accelerated orthognathic surgery, the clinical phenomenon of accelerated orthodontic tooth movement after osteotomy is a benefit compared with the conventional approach. However, because much of the literature on this phenomenon is based on empirical evidence and case reports...
Renata Świergosz-Kowalewska et al.
Ecotoxicology and environmental safety, 106, 204-212 (2014-05-24)
One of the most important issues in ecotoxicology is better understanding the effects of interactions between chemical pollutants and physical environmental factors on animals. To fill this knowledge gap, changes in the activity of acetylcholinesterase (AChE) in the brain samples...

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