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Xiaohong Sun et al.
Journal of nanoscience and nanotechnology, 14(6), 4278-4285 (2014-04-18)
Carbon-coated MoO2 nanocrystallines with uniform particle size and carbon-coating morphology have been fabricated by a green and economical hydrothermal route and carbonization process. Glucose here acts as a multifunctional agent, not only as the reducing species to prepare MoO2, but
Hanmei Hu et al.
Journal of nanoscience and nanotechnology, 14(6), 4462-4468 (2014-04-18)
A mild one-pot hydrothermal route has been successfully designed to controllably prepare orthorhombic alpha-MoO3 nanobelts and monoclinic MoO2 microaxletrees respectively by adjusting the dosage of (NH4)6M07O24 x 4H2O (AHM). The products are characterized by X-ray diffraction (XRD), field-emission scanning electron
Alexey E Kazakov et al.
Journal of bacteriology, 195(19), 4466-4475 (2013-08-06)
The trace elements molybdenum and tungsten are essential components of cofactors of many metalloenzymes. However, in sulfate-reducing bacteria, high concentrations of molybdate and tungstate oxyanions inhibit growth, thus requiring the tight regulation of their homeostasis. By a combination of bioinformatic
Katrijn De Brucker et al.
Oxidative medicine and cellular longevity, 2013, 704654-704654 (2013-10-01)
This study demonstrates a role for superoxide dismutases (Sods) in governing tolerance of Candida albicans biofilms to amphotericin B (AmB). Coincubation of C. albicans biofilms with AmB and the Sod inhibitors N,N'-diethyldithiocarbamate (DDC) or ammonium tetrathiomolybdate (ATM) resulted in reduced
M L Failla
The Proceedings of the Nutrition Society, 58(2), 497-505 (1999-08-31)
Defining optimal dietary intakes of Cu and Zn throughout the life cycle continues to present a considerable challenge for nutrition scientists. Although the daily intake of these micronutrients is below that currently recommended for many groups, traditional biochemical indicators of
M A Lovell et al.
Archives of neurology, 58(3), 392-396 (2001-03-20)
Markers of oxidative stress are increased in cerebrospinal fluid (CSF) of patients with Alzheimer disease (AD), although none of those reported are appropriate diagnostic markers because of the overlap between patients with AD and control subjects. To determine the ratio
Lidia Regoli et al.
The Science of the total environment, 435-436, 96-106 (2012-08-01)
In a regulatory context, bioaccumulation or bioconcentration factors are used for considering secondary poisoning potential and assessing risks to human health via the food chain. In this paper, literature data on the bioaccumulation of molybdenum in the aquatic organisms are
Jarett Wilcoxen et al.
The Journal of biological chemistry, 288(50), 36052-36060 (2013-10-30)
The reaction of the air-tolerant CO dehydrogenase from Oligotropha carboxidovorans with H2 has been examined. Like the Ni-Fe CO dehydrogenase, the enzyme can be reduced by H2 with a limiting rate constant of 5.3 s(-1) and a dissociation constant Kd
E J Pappert et al.
Neurology, 47(4), 1037-1042 (1996-10-01)
To determine if ventricular cerebrospinal fluid (vCSF) alpha-tocopherol levels in Parkinson's disease (PD) patients can be increased by oral alpha-tocopherol supplementation and whether vCSF levels are linearly related to plasma alpha-tocopherol levels. In spite of its putative neuroprotective properties, alpha-tocopherol
Ketack Kim et al.
Journal of nanoscience and nanotechnology, 13(5), 3383-3386 (2013-07-19)
The use of molybdate as a new anionic dopant that replaces phosphate in LiFePO4 was studied. When a small amount of molybdate (0.5 mol%) was used as a dopant, the olivine structure was maintained, while the lattice volume increased by
Tingyu Shi et al.
Journal of cellular biochemistry, 112(10), 2721-2728 (2011-06-17)
When intracelluar pathogens enter the host macrophages where in addition to oxidative and antibiotic mechanisms of antimicrobial activity, nutrients are deprived. Human pathogen Mycobacterium tuberculosis is one of macrophage parasitisms, which can replicate and persist for decades in dormancy state
Jochen Reiss et al.
Human mutation, 21(6), 569-576 (2003-05-20)
Molybdenum cofactor deficiency in humans results in the loss of the activity of molybdoenzymes sulfite oxidase, xanthine dehydrogenase, and aldehyde oxidase. The resultant severe phenotype, which includes progressive neurological damage leading in most cases to early childhood death, results primarily
J J Lian et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 67(8), 1859-1866 (2013-04-13)
The efficacy and capacity of vertical-flow wetland filters on molybdenum (Mo) removal from wastewater was examined, employing reed (Phragmites australis) and cattail (Typha latifolia) as well as different adsorption granular media. Humus, cinder, modified cinder, as well as pyrite were
C Syburra et al.
Ukrains'kyi biokhimichnyi zhurnal (1999 ), 71(3), 112-115 (1999-12-28)
It is well known that brain and nervous system cells are prone to oxidative damage because of their relatively low content of antioxidants, especially enzymatic ones, and of the high levels of both membrane polyunsaturated fatty acids (PUFA) and iron
G Schwarz
Cellular and molecular life sciences : CMLS, 62(23), 2792-2810 (2005-11-02)
The molybdenum cofactor (Moco) forms the active site of all molybdenum (Mo) enzymes, except nitrogenase. Mo enzymes catalyze important redox reactions in global metabolic cycles. Moco consists of Mo covalently bound to one or two dithiolates attached to a unique
J Reiss
Human genetics, 106(2), 157-163 (2000-04-04)
Molybdenum cofactor (MoCo) deficiency leads to a combined deficiency of the molybdoenzymes sulphite oxidase, xanthine dehydrogenase and aldehyde oxidase. Effective therapy is not available for this rare disease, which results in neonatal seizures and other neurological symptoms identical to those
Raju Mekala et al.
Inorganic chemistry, 52(17), 9708-9710 (2013-08-21)
When the giant icosahedral {Mo72Fe30} cluster containing compound [Mo72Fe30O252(CH3COO)12{Mo2O7(H2O)}2{H2Mo2O8(H2O)}(H2O)91]·150H2O (1) is refluxed in water for 36 h, it results in the formation of nanoiron molybdate, Fe2(MoO4)3, in the form of a yellow precipitate; this simple approach not only generates nanoferric
Jian-ping Jia et al.
Chinese medical journal, 117(8), 1161-1164 (2004-09-14)
An important aspect of Alzheimer's disease (AD) is loss or impairment of cholinergic neurons. It is controversial whether there is a similar cholinergic impairment and cerebral deficit of acetylcholine (ACh) in the case of vascular dementia (VD). The purpose of
Alexander O Terent'ev et al.
Organic & biomolecular chemistry, 11(16), 2613-2623 (2013-03-01)
Phosphomolybdic acid (PMA) and phosphotungstic acid (PTA) efficiently catalyze the addition of H2O2 to β-diketones to form bridged 1,2,4,5-tetraoxanes. These reactions are not accompanied by the formation of monocyclic peroxides containing hydroxy and hydroperoxide groups or polymeric peroxides. The use
Nga T Nguyen et al.
Journal of bioscience and bioengineering, 118(4), 386-391 (2014-04-23)
Membrane-bound formate dehydrogenase (FDH) was purified to homogeneity from a facultative anaerobic bacterium Citrobacter sp. S-77. The FDH from Citrobacter sp. S-77 (FDHS77) was a monomer with molecular mass of approximately 150 kDa. On SDS-PAGE, the purified FDHS77 showed as three
Maroor R A Pillai et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 56(1), 159-161 (2014-12-30)
This paper discusses the benefits of obtaining (99m)Tc from non-fission reactor-produced low-specific-activity (99)Mo. This scenario is based on establishing a diversified chain of facilities for the distribution of (99m)Tc separated from reactor-produced (99)Mo by (n,γ) activation of natural or enriched
Ralf R Mendel
Dalton transactions (Cambridge, England : 2003), (21)(21), 3404-3409 (2005-10-20)
Molybdenum and tungsten are available to all organisms, with molybdenum having the far greater abundance and availability. Molybdenum occurs in a wide range of metalloenzymes in bacteria, fungi, algae, plants and animals, while tungsten was found to be essential only
A Moser et al.
Journal of the neurological sciences, 131(2), 183-189 (1995-08-01)
We could identify the MPTP-like compound and isoquinoline derivative N-methyl-norsalsolinol (2-MDTIQ) in cerebrospinal fluid (CSF) of patients with Parkinson's disease. The presence of 2-MDTIQ negatively correlated with the disease duration. In order to study the relationship between presence of 2-MDTIQ
J A Molina et al.
Journal of neural transmission (Vienna, Austria : 1996), 109(7-8), 1035-1044 (2002-07-12)
Thiamine is an essential cofactor for several important enzymes involved in brain oxidative metabolism, such as the alpha-ketoglutarate dehydrogenase complex (KGDHC), pyruvate-dehydrogenase complex (PDHC), and transketolase. Some investigators reported decreased thiamine-diphosphate levels and decreased activities of KGDHC, pyruvate-dehydrogenase complex and
Nuclear nonproliferation. Iranian 'medical' reactor stokes search for alternatives.
Richard Stone
Science (New York, N.Y.), 340(6139), 1392-1392 (2013-06-22)
Bernd Masepohl et al.
Advances in experimental medicine and biology, 675, 49-70 (2010-06-10)
The vast majority of the purple nonsulfur photosynthetic bacteria are diazotrophs, but the details of the complex regulation of the nitrogen fixation process are well understood only for a few species. Here we review what is known of the well-studied
P L Smedley et al.
Environmental monitoring and assessment, 186(10), 6403-6416 (2014-07-12)
An investigation has been carried out of molybdenum in drinking water from a selection of public supply sources and domestic taps across England and Wales. This was to assess concentrations in relation to the World Health Organization (WHO) health-based value
M Schmidt et al.
Clinical orthopaedics and related research, (329 Suppl)(329 Suppl), S35-S47 (1996-08-01)
The development of a metal combination for modular hip systems was motivated by the following observations: (1) wear particles from polyethylene acetabular components can lead to a foreign body reaction and late aseptic loosening and (2) well designed all metal
Hideki Sugimoto et al.
Chemical Society reviews, 37(12), 2609-2619 (2008-11-21)
Recent characterisation of molybdenum and tungsten enzymes revealed novel structural types of reaction centres, as well as providing new subjects of interest as synthetic chemical analogues. This tutorial review highlights the structure/reactivity relationships of the enzyme reaction centres and chemical
Elena Vigonsky et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(14), 5440-5445 (2013-03-21)
In all kingdoms of life, ATP Binding Cassette (ABC) transporters participate in many physiological and pathological processes. Despite the diversity of their functions, they have been considered to operate by a largely conserved mechanism. One deviant is the vitamin B12
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