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In manganese-enhanced magnetic resonance imaging (MEMRI), the paramagnetic divalent ion of manganese (Mn2+) is injected into animals to generate tissue contrast, typically at much higher exposures than have been previously used in studies of Mn toxicity. Here we investigate the effect of these injections on the homeostasis of the …
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Magnetic resonance imaging (MRI) provides a non-destructive approach to peer into opaque tissues like the brain. The paramagnetic ion, manganese (MnII), gives a hyperintense signal in T1 weighted MRI that can serve as a marker for axonal transport.
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Department of Radiology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital & Cancer Center, Kunming, China; Manganese-enhanced magnetic resonance imaging (MEMRI) relies on the strong paramagnetism of Mn 2+.Mn 2+ is a calcium ion analog and can enter excitable cells through voltage-gated …
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A key issue is whether sufficient accumulation of Mn2+ in heart cells for imaging can occur without cardiotoxicity, and findings to date indicate this is possible. This review examines the current status of Mn2+-enhanced MRI of heart with particular focus on the hypothesis that Mn2+ uptake can be interpreted in terms of heart function.
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Springer-Verlag 2012 Abstract As the power of studying mouse genetics and behavior advances, research tools to examine systems level connectivity in the mouse are critically needed. In this study, we compared statistical mapping of the olfactory system in adult mice using manganese-enhanced MRI (MEMRI) and diffusion tensor imaging (DTI) with prob-
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Nevertheless, current manganeseenhanced magnetic resonance imaging (MEMRI) tools have provided a viable method for visualizing cortical responses after evoked and/or spontaneous pain [2,3].
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Manganese-enhanced MRI (MEMRI) is a powerful tool to study neuronal activity and microarchitecture in vivo. Yet the influence of exogenous manganese on the brain of the Parkinson's disease (PD) model mouse is poorly understood. Laser ablation connected to inductively coupled plasma mass spectrometry (LA-ICP-MS) imaging for …
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In Vivo Tracking of Transplanted Mononuclear Cells Using Manganese-Enhanced Magnetic Resonance Imaging (MEMRI) Kenichi Odaka, 1 Ichio Aoki, 1, * Junji Moriya, 2 Kaoru Tateno, 2 Hiroyuki Tadokoro, 3 Jeff Kershaw, 1 Tohru Minamino, 2 Toshiaki Irie, 1 Toshimitsu Fukumura, 1 Issei Komuro, 2 and Tsuneo Saga 1
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Manganese-enhanced magnetic resonance imaging (MEMRI) relies on contrasts that are due to the shortening of the T 1 relaxation time of tissue water protons that become exposed to paramagnetic ...
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The MEMRI neuronal activity studies have been generally performed either by stereotactic brain injection or by systemic administration of Mn(2+) in conjunction with t … Manganese-enhanced magnetic resonance imaging (MEMRI) without compromise of the blood-brain barrier detects hypothalamic neuronal activity in vivo
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Manganese-enhanced magnetic resonance imaging is a technique that employs the divalent ion of the paramagnetic metal manganese (Mn2+) as an effective contrast agent to visualize, in vivo, the mammalian brain. As total achievable contrast is directly proportional to the net amount of Mn2+ accumulated in the brain, there is a great …
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Magnetic resonance imaging (MRI)Magnetic resonance imaging (MRI) provides a non-destructive approach to peer into opaque tissues like the brain. The paramagnetic ion, manganese (MnII), gives a hyperintense signal in T 1 weighted MRIMagnetic resonance imaging (MRI) that can serve as a marker for axonal transportAxonal transport (at).
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Manganese-enhanced MRI (MEMRI) is being increas-ingly used for MRI in animals due to the unique T1 contrast that is sensitive to a number of biological pro-cesses. Thus far, …
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Shapeero LG, Vanel D, Verstraete KL, Bloem JL (2002) Fast magnetic resonance imaging with contrast for sof tisue sarcoma viability. Clin Orthop 397:212–227 PubMed Google Scholar
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Manganese-enhanced MRI (MEMRI) is being increasingly used for MRI in animals due to the unique T1 contrast that is sensitive to a number of biological processes. Three …
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Manganese-enhanced magnetic resonance imaging (MEMRI) rose to prominence in the 1990s as a sensitive approach to high contrast imaging. Following the discovery of manganese conductance through calcium-permeable channels, MEMRI applications expanded to include functional imaging in the central nervous system …
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Manganese-enhanced MRI (MEMRI) evolved in the late nineties when Koretsky and associates pioneered the use of MEMRI for brain activity measurements (2) as well as …
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The use of manganese ions (Mn(2+)) as an MRI contrast agent was introduced over 20 years ago in studies of Mn(2+) toxicity in anesthetized rats (1). Manganese-enhanced MRI (MEMRI) evolved in the late nineties when Koretsky and associates pioneered the use of MEMRI for brain activity measurements (2) …
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Saleem K. S., Pauls J. M., Augath M., et al. (2002) Magnetic resonance imaging of neuronal connections in the macaque monkey. Neuron 34, 685–700. Van der Linden A., Verhoye M., Van Meir V., et al. (2002) In vivo manganeseenhanced magnetic resonance imaging reveals connections and functional properties of the songbird vocal control …
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This special issue of NMR in Biomedicine on manganese-enhanced MRI (MEMRI) is aimed at providing the readers of this journal with an extensive review of …
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Manganese-enhanced magnetic resonance imaging (MEMRI): methodological and practical considerations Afonso C. Silva,1* Jung Hee Lee,1 Ichio Aoki2 and Alan P. Koretsky1 1Laboratory of Functional and Molecular Imaging, National Institutes of Neurological Disorders and Stroke, Bethesda, MD, USA
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To this end, we now report that manganese (Mn 2+)-enhanced magnetic resonance imaging (MEMRI) can reflect brain region-specific HIV-1-induced …
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Manganese-enhanced magnetic resonance imaging (MEMRI) relies on contrasts that are due to the shortening of the T1 relaxation time of tissue water protons that ...
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In contrast, manganese-enhanced magnetic resonance imaging (commonly termed MEMRI) can provide a noninvasive in vivo assessment of axonal transport at the macroscopic scale. MEMRI is based on two important physico-chemical properties of manganese (Mn 2+).
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This special issue of NMR in Biomedicine on manganese-enhanced MRI (MEMRI) is aimed at providing the readers of this journal with an extensive review of some of the most prominent applications of MEMRI in biological systems. Written by several of the leaders in the field, the reviews and original research articles featured in this special …
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A new dendritic manganese(II) chelate 1 has been evaluated by in vivo (relaxivity) and in vitro (toxicity and relaxivity) experiments as a manganese enhanced magnetic resonance imaging (MEMRI) contrast agent. Also, a comparison with its corresponding gadolinium(III) homologue 2 and the commercially …
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Background Transplantation of mononuclear cells (MNCs) has previously been tested as a method to induce therapeutic angiogenesis to treat limb ischemia in clinical trials. Non-invasive high resolution imaging is required to track the cells and evaluate clinical relevance after cell transplantation. The hypothesis that MRI can …
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Cardiac magnetic resonance imaging has a major role in the diagnosis, evaluation of myocardial function and tissue characterization of a range of cardiovascular diseases 1,2,3.Conventional cardiac ...
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Studying Axonal Transport in the Brain by Manganese-Enhanced Magnetic Resonance Imaging (MEMRI) Methods Mol Biol. 2022:2431:111-142. doi: 10.1007/978-1-0716-1990-2_6. ... LLC, part of Springer Nature. Publication types Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't MeSH terms Animals
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1-weighted magnetic resonance imaging (MRI), specific to tissues in which the ion has accumulated. Manganese-enhanced MRI (MEMRI) uses a combination of ... Key Words: Manganese ion; Mn2+; magnetic resonance imaging; MRI; manganese-en-hanced MRI; MEMRI; brain; mouse; rat; rodent; olfactory; neuronal tracts; tract tracing; car-
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In vivo, trans-synaptic tract-tracing utilizing manganese-enhanced magnetic resonance imaging (MEMRI). NMR Biomed. 17 595–601. 10.1002/nbm.942 [Google Scholar] Pautler R. G., Silva A. C., Koretsky A. P. (1998). In vivo neuronal tract tracing using manganese-enhanced magnetic resonance imaging. Magn. Reson.
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In vivo manganese-enhanced magnetic resonance imaging reveals connections and functional properties of the songbird vocal control system. Neuroscience 2002; 112: 467–474. 14. Saleem KS, Pauls JM, Augath M, Trinath T, Prause BA, Hashikawa T, Logothetis NK. Magnetic resonance imaging of neuronal connections in the macaque …
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Manganese-enhanced MRI (MEMRI) is being increasingly used for MRI in animals due to the unique T1 contrast that is sensitive to a number of biological processes. Three specific uses of MEMRI have bee...
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Request PDF | Manganese‐enhanced magnetic resonance imaging (MEMRI) | Manganese ion (Mn2+) is an essential metal that participates as a cofactor in a number of critical biological functions ...
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A new dendritic manganese(II) chelate 1 has been evaluated by in vivo (relaxivity) and in vitro (toxicity and relaxivity) experiments as a manganese enhanced magnetic resonance imaging (MEMRI ...
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One tool for identifying activated neuronal networks is manganese-enhanced magnetic resonance imaging (MEMRI) [16–18]. Unlike imaging based on blood oxygenation or blood flow, MEMRI is based on the ability of paramagnetic manganese ions (Mn 2+) to enter activated neurons through voltage-gated calcium channels [16, 19–21].
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The combined physical and biological properties of Mn 2+ make it a useful contrast agent for anatomical and functional imaging in multiple systems. Indeed, manganese …
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Manganese-enhanced magnetic resonance imaging (MEMRI) relies on contrasts that are due to the shortening of the T 1 relaxation time of tissue water protons …
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Manganese-enhanced MRI (MEMRI) is being increasingly used for MRI in animals due to the unique T1 contrast that is sensitive to a number of biological processes. Three specific uses of MEMRI have been demonstrated: to visualize activity in the brain and the heart; to trace neuronal specific connecti …
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