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Showing 1-30 of 51 results for "63535" within Papers
Anne Bertrand et al.
NeuroImage, 64, 693-702 (2012-09-11)
The impairment of axonal transport by overexpression or hyperphosphorylation of tau is well documented for in vitro conditions; however, only a few studies on this phenomenon have been conducted in vivo, using invasive procedures, and with contradictory results. Here we
Jeremy Hreha et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 33(1), 122-130 (2014-09-19)
This study investigated the effects of local delivery of manganese chloride (MnCl2), an insulin-mimetic compound, upon fracture healing using a rat femoral fracture model. Mechanical testing, histomorphometry, and immunohistochemistry were performed to assess early and late parameters of fracture healing.
Marta Sidoryk-Wegrzynowicz et al.
Journal of neurochemistry, 122(4), 856-867 (2012-06-20)
Manganese (Mn) has been implicated in the impairment of the glutamate-glutamine cycling (GGC) by deregulation of Glu and glutamine (Gln) turnover in astrocytes. Here, we have examined possible mechanisms involved in the Mn(II)-mediated disruption of Glu turnover, including those related
Nicholas Sofos et al.
Molecular cell, 79(5), 741-757 (2020-07-31)
Cmr-β is a type III-B CRISPR-Cas complex that, upon target RNA recognition, unleashes a multifaceted immune response against invading genetic elements, including single-stranded DNA (ssDNA) cleavage, cyclic oligoadenylate synthesis, and also a unique UA-specific single-stranded RNA (ssRNA) hydrolysis by the
Tameshwar Ganesh et al.
Journal of magnetic resonance imaging : JMRI, 41(3), 806-813 (2014-03-05)
To investigate the potential of manganese (Mn)-enhanced MRI for sensitive detection and delineation of tumors that demonstrate little enhancement on Gd-DTPA. Eighteen nude rats bearing 1 to 2 cm in diameter orthotopic breast tumors (ZR75 and LM2) were imaged on
Geoffrey J Topping et al.
Medical physics, 40(4), 042502-042502 (2013-04-06)
Manganese(II) is employed as a contrast agent with magnetic resonance imaging (MRI) for study of neuronal activation in rats and mice. However, at the concentrations required for MRI, Mn may induce pharmacological or toxic effects. Positron emission tomography (PET) imaging
Dinamene Santos et al.
Biological trace element research, 150(1-3), 337-341 (2012-09-14)
Manganese (Mn) is an essential element and it acts as a cofactor for a number of enzymatic reactions, including those involved in amino acid, lipid, protein, and carbohydrate metabolism. Excessive exposure to Mn can lead to poisoning, characterized by psychiatric
Zhenghuan Zhao et al.
ACS nano, 9(3), 2749-2759 (2015-02-18)
Delivery of arsenic trioxide (ATO), a clinical anticancer drug, has drawn much attention to improve its pharmacokinetics and bioavailability for efficient cancer therapy. Real-time and in situ monitoring of ATO behaviors in vivo is highly desirable for efficient tumor treatment.
Seong-Uk Jin et al.
Magnetic resonance imaging, 31(7), 1143-1149 (2013-05-11)
The cochlear plays a vital role in the sense and sensitivity of hearing; however, there is currently a lack of knowledge regarding the relationships between mechanical transduction of sound at different intensities and frequencies in the cochlear and the neurochemical
Jerome A Roth et al.
Neurotoxicology, 35, 121-128 (2013-01-15)
Chronic exposure to Mn results in the development of a neurological disorder known as manganism characterized by neurological deficits resembling that seen in Parkinsonism. Although dopaminergic neurons within the nigrostriatal pathway appear intact, Mn-induced irregularities in DA transmission have been
Katharina A Sterenczak et al.
BMC cancer, 12, 284-284 (2012-07-13)
Cell lines represent a key tool in cancer research allowing the generation of neoplasias which resemble initial tumours in in-vivo animal models. The characterisation of early tumour development is of major interest in order to evaluate the efficacy of therapeutic
Lisa Hoffman et al.
Environmental toxicology and pharmacology, 34(2), 556-573 (2012-07-25)
The effects of the fungicides Maneb, Mancozeb, and Zineb were investigated in transformed colon cells, HT-29, Caco2 and non-transformed cells, CCD-18Co. Significant decreases in viability were observed with Maneb and Mancozeb in HT-29 and CCD-18Co (80-260μM), and Caco2 cells (40-180μM).
Anita Leocadio Freitas-Mesquita et al.
Experimental parasitology, 137, 8-13 (2013-12-10)
Several ecto-enzymatic activities have been described in the plasma membrane of the protozoan Leishmania amazonensis, which is the major etiological agent of diffuse cutaneous leishmaniasis in South America. These enzymes, including ecto-phosphatases, contribute to the survival of the parasite by
Dorit B Hoffmann et al.
Journal of neuropathology and experimental neurology, 72(8), 745-757 (2013-07-19)
Optic neuritis is a common manifestation of multiple sclerosis, an inflammatory demyelinating disease of the CNS. Recently, the neurodegenerative component of multiple sclerosis has come under focus particularly because permanent disability in patients correlates well with neurodegeneration; and observations in
Jerome A Roth et al.
Toxicology in vitro : an international journal published in association with BIBRA, 26(7), 1143-1149 (2012-07-31)
Mutations in the parkin gene are linked to development of juvenile onset of Parkinson's disease and recent studies have reported that parkin can protect against increased oxidative stress and mitochondrial dysfunction caused by a variety of oxidative and toxic insults.
T W Myers et al.
Biochemistry, 30(31), 7661-7666 (1991-08-06)
A recombinant DNA polymerase derived from the thermophilic eubacterium Thermus thermophilus (Tth pol) was found to possess very efficient reverse transcriptase (RT) activity in the presence of MnCl2. Many of the problems typically associated with the high degree of secondary
Barry J Bowman et al.
Eukaryotic cell, 11(11), 1362-1370 (2012-09-18)
The pmr gene is predicted to encode a Ca(2+)-ATPase in the secretory pathway. We examined two strains of Neurospora crassa that lacked PMR: the Δpmr strain, in which pmr was completely deleted, and pmr(RIP), in which the gene was extensively
Graziela Ribeiro Batista et al.
The European journal of esthetic dentistry : official journal of the European Academy of Esthetic Dentistry, 8(1), 104-117 (2013-02-08)
This study aimed to evaluate the efficacy of chemical agents to increase the bleaching effectiveness of 10% carbamide peroxide. Two hundred and ninety enamel-dentin discs were prepared from bovine incisors. The color measurement was performed by a spectrophotometer using the
Yaolin Xu et al.
Nanoscale, 7(29), 12641-12649 (2015-07-08)
A general approach to the synthesis and detailed characterization of magnetic ferrite nanocubes were reported, where the nanocubes were synthesized by the thermal decomposition of metal-oleate complexes following a step-heating method. The doping ions were introduced during the precursor preparation
A G Kanthasamy et al.
Toxicology letters, 214(3), 288-295 (2012-09-22)
The role of normal cellular prion protein (PrP) remains to be fully elucidated; however, the protein is crucial for the infection and progression of prion diseases. Recent evidence indicates that PrP is a metalloprotein since the octapeptide repeat sequences in
M I Mokgobu et al.
Inhalation toxicology, 24(10), 634-644 (2012-08-22)
Although pro-inflammatory mechanisms have been implicated in the pathogenesis of manganese (Mn²⁺)-related neurological and respiratory disorders, relatively little is known about the potential of this metal to interact pro-oxidatively with human phagocytes. The primary objective of the current study was
Yang Hai et al.
Biochemistry, 53(28), 4671-4684 (2014-07-10)
The X-ray crystal structure of arginase from Schistosoma mansoni (SmARG) and the structures of its complexes with several amino acid inhibitors have been determined at atomic resolution. SmARG is a binuclear manganese metalloenzyme that catalyzes the hydrolysis of l-arginine to
Terminal transferase: use of the tailing of DNA and for in vitro mutagenesis.
G Deng et al.
Methods in enzymology, 100, 96-116 (1983-01-01)
Mohammad Ali Hamzeh et al.
Environmental monitoring and assessment, 185(2), 1791-1807 (2012-05-31)
In this study, the levels of natural and anthropogenic metal contamination (aluminum (Al), iron (Fe), manganese (Mn), arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn)) in surface sediments of three harbors along the
Asad A Aboud et al.
Neurotoxicology, 33(6), 1443-1449 (2012-10-27)
Manganese (Mn) is an environmental risk factor for Parkinson's disease (PD). Recessive inheritance of PARK2 mutations is strongly associated with early onset PD (EOPD). It is widely assumed that the influence of PD environmental risk factors may be enhanced by
Hong-Min Meng et al.
Analytical chemistry, 86(24), 12321-12326 (2014-11-18)
Glutathione (GSH) serves vital cellular biological functions, and its abnormal levels are associated with many diseases. To better understand its physiological and pathological functions, efficient methods for monitoring of GSH in living systems are desired. Although quite a few small
Xiang Gao et al.
Acta radiologica (Stockholm, Sweden : 1987), 55(3), 328-334 (2013-08-22)
Previous studies have demonstrated that magnetic resonance imaging may be a method of choice to visualize transplanted pancreatic islets. However, contrast agents may interfere with microcirculation and affect graft function. To evaluate the effects manganese-containing contrast media on regional blood
Elizabeth Greally et al.
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 15, 4-4 (2013-01-18)
Manganese-enhanced cardiovascular magnetic resonance (MECMR) can non-invasively assess myocardial calcium influx, and calcium levels are known to be elevated in muscular dystrophy cardiomyopathy based on cellular studies. Left ventricular functional studies and MECMR were performed in mdx mice (model of
Lisha Luo et al.
NMR in biomedicine, 25(12), 1360-1368 (2012-05-11)
The aim of this study was to provide data on the dose dependence of manganese-enhanced MRI (MEMRI) in the visual pathway of experimental rats and to study the toxicity of MnCl₂ to the retina. Sprague-Dawley rats were intravitreally injected with
M R Sepúlveda et al.
Contrast media & molecular imaging, 7(4), 426-434 (2012-06-01)
Manganese is a vital element and cofactor of many key enzymes, but it is toxic at high levels, causing pronounced disturbances in the mammalian brain. Magnetic resonance imaging (MRI) studies using manganese ions as a paramagnetic contrast agent are often
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