author_facet Butt, Sadia A
Søgaard, Lise V
Magnusson, Peter O
Lauritzen, Mette H
Laustsen, Christoffer
Åkeson, Per
Ardenkjær-Larsen, Jan H
Butt, Sadia A
Søgaard, Lise V
Magnusson, Peter O
Lauritzen, Mette H
Laustsen, Christoffer
Åkeson, Per
Ardenkjær-Larsen, Jan H
author Butt, Sadia A
Søgaard, Lise V
Magnusson, Peter O
Lauritzen, Mette H
Laustsen, Christoffer
Åkeson, Per
Ardenkjær-Larsen, Jan H
spellingShingle Butt, Sadia A
Søgaard, Lise V
Magnusson, Peter O
Lauritzen, Mette H
Laustsen, Christoffer
Åkeson, Per
Ardenkjær-Larsen, Jan H
Journal of Cerebral Blood Flow & Metabolism
Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
Cardiology and Cardiovascular Medicine
Neurology (clinical)
Neurology
author_sort butt, sadia a
spelling Butt, Sadia A Søgaard, Lise V Magnusson, Peter O Lauritzen, Mette H Laustsen, Christoffer Åkeson, Per Ardenkjær-Larsen, Jan H 0271-678X 1559-7016 SAGE Publications Cardiology and Cardiovascular Medicine Neurology (clinical) Neurology http://dx.doi.org/10.1038/jcbfm.2012.34 <jats:p> The branched chain amino acid transaminase (BCAT) has an important role in nitrogen shuttling and glutamate metabolism in the brain. The purpose of this study was to describe the cerebral distribution and metabolism of hyperpolarized 2-keto[1-<jats:sup>13</jats:sup>C]isocaproate (KIC) in the normal rat using magnetic resonance modalities. Hyperpolarized KIC is metabolized to [1-<jats:sup>13</jats:sup>C]leucine (leucine) by BCAT. The results show that KIC and its metabolic product, leucine, are present at imageable quantities 20 seconds after end of KIC administration throughout the brain. Further, significantly higher metabolism was observed in hippocampal regions compared with the muscle tissue. In conclusion, the cerebral metabolism of hyperpolarized KIC is imaged and hyperpolarized KIC may be a promising substrate for evaluation of cerebral BCAT activity in conjunction with neurodegenerative disease. </jats:p> Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized <sup>13</sup>C Magnetic Resonance Spectroscopic Imaging Journal of Cerebral Blood Flow & Metabolism
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series Journal of Cerebral Blood Flow & Metabolism
source_id 49
title Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_unstemmed Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_full Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_fullStr Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_full_unstemmed Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_short Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_sort imaging cerebral 2-ketoisocaproate metabolism with hyperpolarized <sup>13</sup>c magnetic resonance spectroscopic imaging
topic Cardiology and Cardiovascular Medicine
Neurology (clinical)
Neurology
url http://dx.doi.org/10.1038/jcbfm.2012.34
publishDate 2012
physical 1508-1514
description <jats:p> The branched chain amino acid transaminase (BCAT) has an important role in nitrogen shuttling and glutamate metabolism in the brain. The purpose of this study was to describe the cerebral distribution and metabolism of hyperpolarized 2-keto[1-<jats:sup>13</jats:sup>C]isocaproate (KIC) in the normal rat using magnetic resonance modalities. Hyperpolarized KIC is metabolized to [1-<jats:sup>13</jats:sup>C]leucine (leucine) by BCAT. The results show that KIC and its metabolic product, leucine, are present at imageable quantities 20 seconds after end of KIC administration throughout the brain. Further, significantly higher metabolism was observed in hippocampal regions compared with the muscle tissue. In conclusion, the cerebral metabolism of hyperpolarized KIC is imaged and hyperpolarized KIC may be a promising substrate for evaluation of cerebral BCAT activity in conjunction with neurodegenerative disease. </jats:p>
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author Butt, Sadia A, Søgaard, Lise V, Magnusson, Peter O, Lauritzen, Mette H, Laustsen, Christoffer, Åkeson, Per, Ardenkjær-Larsen, Jan H
author_facet Butt, Sadia A, Søgaard, Lise V, Magnusson, Peter O, Lauritzen, Mette H, Laustsen, Christoffer, Åkeson, Per, Ardenkjær-Larsen, Jan H, Butt, Sadia A, Søgaard, Lise V, Magnusson, Peter O, Lauritzen, Mette H, Laustsen, Christoffer, Åkeson, Per, Ardenkjær-Larsen, Jan H
author_sort butt, sadia a
container_issue 8
container_start_page 1508
container_title Journal of Cerebral Blood Flow & Metabolism
container_volume 32
description <jats:p> The branched chain amino acid transaminase (BCAT) has an important role in nitrogen shuttling and glutamate metabolism in the brain. The purpose of this study was to describe the cerebral distribution and metabolism of hyperpolarized 2-keto[1-<jats:sup>13</jats:sup>C]isocaproate (KIC) in the normal rat using magnetic resonance modalities. Hyperpolarized KIC is metabolized to [1-<jats:sup>13</jats:sup>C]leucine (leucine) by BCAT. The results show that KIC and its metabolic product, leucine, are present at imageable quantities 20 seconds after end of KIC administration throughout the brain. Further, significantly higher metabolism was observed in hippocampal regions compared with the muscle tissue. In conclusion, the cerebral metabolism of hyperpolarized KIC is imaged and hyperpolarized KIC may be a promising substrate for evaluation of cerebral BCAT activity in conjunction with neurodegenerative disease. </jats:p>
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spelling Butt, Sadia A Søgaard, Lise V Magnusson, Peter O Lauritzen, Mette H Laustsen, Christoffer Åkeson, Per Ardenkjær-Larsen, Jan H 0271-678X 1559-7016 SAGE Publications Cardiology and Cardiovascular Medicine Neurology (clinical) Neurology http://dx.doi.org/10.1038/jcbfm.2012.34 <jats:p> The branched chain amino acid transaminase (BCAT) has an important role in nitrogen shuttling and glutamate metabolism in the brain. The purpose of this study was to describe the cerebral distribution and metabolism of hyperpolarized 2-keto[1-<jats:sup>13</jats:sup>C]isocaproate (KIC) in the normal rat using magnetic resonance modalities. Hyperpolarized KIC is metabolized to [1-<jats:sup>13</jats:sup>C]leucine (leucine) by BCAT. The results show that KIC and its metabolic product, leucine, are present at imageable quantities 20 seconds after end of KIC administration throughout the brain. Further, significantly higher metabolism was observed in hippocampal regions compared with the muscle tissue. In conclusion, the cerebral metabolism of hyperpolarized KIC is imaged and hyperpolarized KIC may be a promising substrate for evaluation of cerebral BCAT activity in conjunction with neurodegenerative disease. </jats:p> Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized <sup>13</sup>C Magnetic Resonance Spectroscopic Imaging Journal of Cerebral Blood Flow & Metabolism
spellingShingle Butt, Sadia A, Søgaard, Lise V, Magnusson, Peter O, Lauritzen, Mette H, Laustsen, Christoffer, Åkeson, Per, Ardenkjær-Larsen, Jan H, Journal of Cerebral Blood Flow & Metabolism, Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging, Cardiology and Cardiovascular Medicine, Neurology (clinical), Neurology
title Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_full Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_fullStr Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_full_unstemmed Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_short Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
title_sort imaging cerebral 2-ketoisocaproate metabolism with hyperpolarized <sup>13</sup>c magnetic resonance spectroscopic imaging
title_unstemmed Imaging Cerebral 2-Ketoisocaproate Metabolism with Hyperpolarized 13C Magnetic Resonance Spectroscopic Imaging
topic Cardiology and Cardiovascular Medicine, Neurology (clinical), Neurology
url http://dx.doi.org/10.1038/jcbfm.2012.34