Masahiro Fujita

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. ncbi request reprint Effect of scatter correction on the compartmental measurement of striatal and extrastriatal dopamine D2 receptors using [123I]epidepride SPET
    Masahiro Fujita
    Department of Psychiatry, Yale University School of Medicine and VA Connecticut Healthcare System, West Haven, CT, USA
    Eur J Nucl Med Mol Imaging 31:644-54. 2004
  2. pmc Kinetic analysis in healthy humans of a novel positron emission tomography radioligand to image the peripheral benzodiazepine receptor, a potential biomarker for inflammation
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, 31 Center Drive, MSC 2035, Bethesda, MD 20892 2035, USA
    Neuroimage 40:43-52. 2008
  3. ncbi request reprint Quantification of brain phosphodiesterase 4 in rat with (R)-[11C]Rolipram-PET
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, Building 1, Room B3 10, 1 Center Drive, MSC 0135, Bethesda, MD 20892 0135, USA
    Neuroimage 26:1201-10. 2005
  4. ncbi request reprint Quantification of nicotinic acetylcholine receptors in human brain using [123I]5-I-A-85380 SPET
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, MD 20892 0135, USA
    Eur J Nucl Med Mol Imaging 30:1620-9. 2003
  5. ncbi request reprint Influence of acetylcholine levels on the binding of a SPECT nicotinic acetylcholine receptor ligand [123I]5-I-A-85380
    Masahiro Fujita
    Department of Psychiatry, Yale University and VA Connecticut HCS, West Haven, Connecticut, USA
    Synapse 48:116-22. 2003
  6. ncbi request reprint Synthesis and evaluation in monkey of two sensitive 11C-labeled aryloxyanilide ligands for imaging brain peripheral benzodiazepine receptors in vivo
    Emmanuelle Briard
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
    J Med Chem 51:17-30. 2008
  7. doi request reprint Pre- and post-synaptic dopamine imaging and its relation with frontostriatal cognitive function in Parkinson disease: PET studies with [11C]NNC 112 and [18F]FDOPA
    Vanessa L Cropley
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 0135, USA
    Psychiatry Res 163:171-82. 2008
  8. pmc Brain and whole-body imaging in nonhuman primates of [11C]PBR28, a promising PET radioligand for peripheral benzodiazepine receptors
    Masao Imaizumi
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bldg 31, Rm B2B37, 31 Center Drive, MSC 2035, Bethesda, MD 20892 2035, USA
    Neuroimage 39:1289-98. 2008
  9. ncbi request reprint Radiation dosimetry and biodistribution in monkey and man of 11C-PBR28: a PET radioligand to image inflammation
    Amira K Brown
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, Maryland 20892 2035, USA
    J Nucl Med 48:2072-9. 2007
  10. ncbi request reprint Whole-body biodistribution and estimation of radiation-absorbed doses of the dopamine D1 receptor radioligand 11C-NNC 112 in humans
    Vanessa L Cropley
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 0135, USA
    J Nucl Med 47:100-4. 2006

Collaborators

Detail Information

Publications61

  1. ncbi request reprint Effect of scatter correction on the compartmental measurement of striatal and extrastriatal dopamine D2 receptors using [123I]epidepride SPET
    Masahiro Fujita
    Department of Psychiatry, Yale University School of Medicine and VA Connecticut Healthcare System, West Haven, CT, USA
    Eur J Nucl Med Mol Imaging 31:644-54. 2004
    ..It is concluded that SC is required for accurate quantification of distribution volumes of receptor ligands in SPET studies...
  2. pmc Kinetic analysis in healthy humans of a novel positron emission tomography radioligand to image the peripheral benzodiazepine receptor, a potential biomarker for inflammation
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, 31 Center Drive, MSC 2035, Bethesda, MD 20892 2035, USA
    Neuroimage 40:43-52. 2008
    ..In conclusion, with the exception of those subjects who appeared to have no PBR binding, [(11)C]PBR28 is a promising ligand to quantify PBRs and localize inflammation associated with increased densities of PBRs...
  3. ncbi request reprint Quantification of brain phosphodiesterase 4 in rat with (R)-[11C]Rolipram-PET
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, Building 1, Room B3 10, 1 Center Drive, MSC 0135, Bethesda, MD 20892 0135, USA
    Neuroimage 26:1201-10. 2005
    ..Phosphodiesterase 4 (PDE4) catabolizes the second messenger 3', 5'-cyclic adenosine monophosphate and may play a critical role in brain diseases. Our aim was to quantify PDE4 in rats with positron emission tomography (PET)...
  4. ncbi request reprint Quantification of nicotinic acetylcholine receptors in human brain using [123I]5-I-A-85380 SPET
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, MD 20892 0135, USA
    Eur J Nucl Med Mol Imaging 30:1620-9. 2003
    ..These results demonstrate the feasibility of quantifying high-affinity type nAChRs using [123I]5-I-A-85380 in humans and support the use of VT' measured by bolus studies...
  5. ncbi request reprint Influence of acetylcholine levels on the binding of a SPECT nicotinic acetylcholine receptor ligand [123I]5-I-A-85380
    Masahiro Fujita
    Department of Psychiatry, Yale University and VA Connecticut HCS, West Haven, Connecticut, USA
    Synapse 48:116-22. 2003
    ..However, decreased thalamic activities could have been caused by other mechanisms, including internalization of the receptor with an associated decreased affinity for radioligand...
  6. ncbi request reprint Synthesis and evaluation in monkey of two sensitive 11C-labeled aryloxyanilide ligands for imaging brain peripheral benzodiazepine receptors in vivo
    Emmanuelle Briard
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
    J Med Chem 51:17-30. 2008
    ..11)C] 3 and [ (11)C] 10 are effective for imaging PBR in monkey brain. [ (11)C] 10 especially warrants further evaluation in human subjects...
  7. doi request reprint Pre- and post-synaptic dopamine imaging and its relation with frontostriatal cognitive function in Parkinson disease: PET studies with [11C]NNC 112 and [18F]FDOPA
    Vanessa L Cropley
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 0135, USA
    Psychiatry Res 163:171-82. 2008
    ..These results suggest that striatal dopamine denervation may contribute to some frontostriatal cognitive impairment in moderate stage PD...
  8. pmc Brain and whole-body imaging in nonhuman primates of [11C]PBR28, a promising PET radioligand for peripheral benzodiazepine receptors
    Masao Imaizumi
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bldg 31, Rm B2B37, 31 Center Drive, MSC 2035, Bethesda, MD 20892 2035, USA
    Neuroimage 39:1289-98. 2008
    ..The objectives of the current study were to evaluate kinetics of brain uptake, and the influence of the peripheral binding on the arterial input function in rhesus monkey...
  9. ncbi request reprint Radiation dosimetry and biodistribution in monkey and man of 11C-PBR28: a PET radioligand to image inflammation
    Amira K Brown
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, Maryland 20892 2035, USA
    J Nucl Med 48:2072-9. 2007
    ..The aim of this study was to estimate the human radiation doses of (11)C-PBR28 based on biodistribution data in monkeys and humans. In addition, we scanned 1 human subject who fortuitously behaved as if he lacked the PBR binding protein...
  10. ncbi request reprint Whole-body biodistribution and estimation of radiation-absorbed doses of the dopamine D1 receptor radioligand 11C-NNC 112 in humans
    Vanessa L Cropley
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 0135, USA
    J Nucl Med 47:100-4. 2006
    ....
  11. pmc Whole-body biodistribution and radiation dosimetry in monkeys and humans of the phosphodiesterase 4 radioligand [(11)C](R)-rolipram: comparison of two-dimensional planar, bisected and quadrisected image analyses
    David R Sprague
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, MD 20892 2035, USA
    Nucl Med Biol 35:493-500. 2008
    ..The aim of this study was to estimate the human radiation absorbed dose of the radioligand based on its biodistribution in both monkeys and humans...
  12. pmc Single-step high-yield radiosynthesis and evaluation of a sensitive 18F-labeled ligand for imaging brain peripheral benzodiazepine receptors with PET
    Emmanuelle Briard
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
    J Med Chem 52:688-99. 2009
    ..In rat, a low level radiometabolite of intermediate lipophilicity was identified as [18F]2-fluoro-N-(2-phenoxyphenyl)acetamide ([18F]11). [18F]9 is a promising radioligand for future imaging of PBR in living human brain...
  13. pmc Comparison of [(11)C]-(R)-PK 11195 and [(11)C]PBR28, two radioligands for translocator protein (18 kDa) in human and monkey: Implications for positron emission tomographic imaging of this inflammation biomarker
    William C Kreisl
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, MD, USA
    Neuroimage 49:2924-32. 2010
    ..Non-binding may be differentially expressed in organs of the body. The relatively low in vivo specific binding of [(11)C]-(R)-PK 11195 may have obscured its detection of non-binding in peripheral organs...
  14. ncbi request reprint Kinetic evaluation in nonhuman primates of two new PET ligands for peripheral benzodiazepine receptors in brain
    Masao Imaizumi
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 2035, USA
    Synapse 61:595-605. 2007
    ..A critical factor for human use will be whether the tracer has adequately fast wash out from brain relative to the half-life of the radionuclide to obtain stable values of distribution volume...
  15. pmc Biodistribution and radiation dosimetry of a positron emission tomographic ligand, 18F-SP203, to image metabotropic glutamate subtype 5 receptors in humans
    Yasuyuki Kimura
    Molecular Imaging Branch, National Institute of Mental Health, 10 Center Drive, Bethesda, MD 20892 1026, USA
    Eur J Nucl Med Mol Imaging 37:1943-9. 2010
    ....
  16. ncbi request reprint Chemical fate of the nicotinic acetylcholinergic radiotracer [123I]5-IA-85380 in baboon brain and plasma
    Ronald M Baldwin
    Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, USA
    Nucl Med Biol 33:549-54. 2006
    ....
  17. pmc Quantification of metabotropic glutamate subtype 5 receptors in the brain by an equilibrium method using 18F-SP203
    Yasuyuki Kimura
    Molecular Imaging Branch, 10 Center Drive, MSC 1026, Bldg 10, National Institute of Mental Health, Bethesda, MD 20892, USA
    Neuroimage 59:2124-30. 2012
    ..In addition, when using 18F-SP203, the equilibrium method is more efficient because it requires much less data...
  18. ncbi request reprint PET imaging of the dopamine transporter with 18F-FECNT: a polar radiometabolite confounds brain radioligand measurements
    Sami S Zoghbi
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 0135, USA
    J Nucl Med 47:520-7. 2006
    ....
  19. pmc Image-derived input function for human brain using high resolution PET imaging with [C](R)-rolipram and [C]PBR28
    Paolo Zanotti-Fregonara
    Molecular Imaging Branch, National Institute of Mental Health NIMH, National Institutes of Health NIH, Bethesda, Maryland, United States of America
    PLoS ONE 6:e17056. 2011
    ..Three of the methods required arterial blood samples to scale the image-input, and four were blood-free methods...
  20. pmc Population-based input function and image-derived input function for [¹¹C](R)-rolipram PET imaging: methodology, validation and application to the study of major depressive disorder
    Paolo Zanotti-Fregonara
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
    Neuroimage 63:1532-41. 2012
    ....
  21. pmc Brain and whole-body imaging of nociceptin/orphanin FQ peptide receptor in humans using the PET ligand 11C-NOP-1A
    Talakad G Lohith
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 1026, USA
    J Nucl Med 53:385-92. 2012
    ..Here, we assessed the ability of (11)C-NOP-1A to quantify NOP receptors in human brain and estimated its radiation safety profile...
  22. pmc Brain and whole-body imaging in rhesus monkeys of 11C-NOP-1A, a promising PET radioligand for nociceptin/orphanin FQ peptide receptors
    Yasuyuki Kimura
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 1026, USA
    J Nucl Med 52:1638-45. 2011
    ..4) for PET brain imaging. Here, we assessed the utility of (11)C-NOP-1A for quantifying NOP receptors in the monkey brain and estimated the radiation safety profile of this radioligand based on its biodistribution in monkeys...
  23. ncbi request reprint Disulfiram inhibits defluorination of (18)F-FCWAY, reduces bone radioactivity, and enhances visualization of radioligand binding to serotonin 5-HT1A receptors in human brain
    Yong Hoon Ryu
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
    J Nucl Med 48:1154-61. 2007
    ..We previously showed that miconazole, an inhibitor of CYP2E1, blocks defluorination of FCWAY in rats. Here, we used (18)F-FCWAY to test the ability of the less toxic agent disulfiram to inhibit defluorination in humans...
  24. doi request reprint Small effect of dopamine release and no effect of dopamine depletion on [18F]fallypride binding in healthy humans
    Vanessa L Cropley
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 0135, USA
    Synapse 62:399-408. 2008
    ..These findings indicate that [18F]fallypride is useful for measuring amphetamine-induced dopamine release, but may be unreliable for estimating tonic dopamine levels, in striatum and extrastriatal regions of healthy humans...
  25. pmc Biodistribution and radiation dosimetry in humans of a new PET ligand, (18)F-PBR06, to image translocator protein (18 kDa)
    Yota Fujimura
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 2035, USA
    J Nucl Med 51:145-9. 2010
    ..The objective of this study was to estimate the radiation absorbed doses of (18)F-PBR06 based on biodistribution data in humans...
  26. pmc PET measurement of the in vivo affinity of 11C-(R)-rolipram and the density of its target, phosphodiesterase-4, in the brains of conscious and anesthetized rats
    Tetsuji Itoh
    National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
    J Nucl Med 50:749-56. 2009
    ..We also studied 2 critical factors in small-animal PET scans: the influence of anesthesia and the difference in binding under in vivo and in vitro conditions...
  27. pmc Metabotropic glutamate subtype 5 receptors are quantified in the human brain with a novel radioligand for PET
    Amira K Brown
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, Maryland, USA
    J Nucl Med 49:2042-8. 2008
    ....
  28. ncbi request reprint PET imaging with [11C]PBR28 can localize and quantify upregulated peripheral benzodiazepine receptors associated with cerebral ischemia in rat
    Masao Imaizumi
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Building 1, Room B3 10, 1 Center Drive, MSC 0135, Bethesda, MD 20892 0135, USA
    Neurosci Lett 411:200-5. 2007
    ..In this first study to demonstrate neuroinflammation in vivo with small animal PET, [11C]PBR28 had adequate sensitivity to localize and quantify the associated increase in PBRs...
  29. pmc Downregulation of brain phosphodiesterase type IV measured with 11C-(R)-rolipram positron emission tomography in major depressive disorder
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 1026, USA
    Biol Psychiatry 72:548-54. 2012
    ..This study sought to quantify the binding of 11C-(R)-rolipram, a PDE4 inhibitor, as an indirect measure of this enzyme's activity in the brain of individuals with major depressive disorder (MDD) compared with healthy control subjects...
  30. ncbi request reprint In vivo and in vitro measurement of brain phosphodiesterase 4 in rats after antidepressant administration
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
    Synapse 61:78-86. 2007
    ..g., continuous infusion vs. intermittent injection of antidepressant) in large brain areas. However, the results do not deny possibility of changes in discrete areas, which were not studied in the current study applying PET...
  31. pmc Widespread decrease of nicotinic acetylcholine receptors in Parkinson's disease
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Building 1, Room B3 10, I Center Drive, MSC 0135, Bethesda, MD, USA
    Ann Neurol 59:174-7. 2006
    ..Nicotinic acetylcholine receptors have close interactions with the dopaminergic system and play critical roles in cognitive function. The purpose of this study was to compare these receptors between living PD patients and healthy subjects...
  32. pmc PET reveals inflammation around calcified Taenia solium granulomas with perilesional edema
    Masahiro Fujita
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health Bethesda, Maryland, United States of America
    PLoS ONE 8:e74052. 2013
    ..To investigate whether perilesional edema is due to inflammation, we imaged a marker of neuroinflammation, translocater protein (TSPO), using positron emission tomography (PET) and the selective ligand (11)C-PBR28...
  33. ncbi request reprint Central type benzodiazepine receptors in Gulf War veterans with posttraumatic stress disorder
    Masahiro Fujita
    Department of Psychiatry, Yale University and Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA
    Biol Psychiatry 56:95-100. 2004
    ..To assess the generalizability of this finding to patients with more recent history, we studied central type benzodiazepine receptors in Gulf War veterans with posttraumatic stress disorder...
  34. pmc Effects of cAMP-dependent protein kinase activator and inhibitor on in vivo rolipram binding to phosphodiesterase 4 in conscious rats
    Tetsuji Itoh
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
    Synapse 64:172-6. 2010
    ..These results support the value of measuring in vivo [(11)C](R)-rolipram binding in brain to assess responses to physiological or pharmacological challenges to the cAMP second messenger system...
  35. pmc In vivo binding of protoporphyrin IX to rat translocator protein imaged with positron emission tomography
    Harushige Ozaki
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
    Synapse 64:649-53. 2010
    ..Although PPIX at physiological concentrations would likely occupy an insignificant percentage of TSPOs, it does reach high-enough concentrations in porphyria to occupy and have pharmacological effects via this target...
  36. ncbi request reprint Whole-body biodistribution and radiation dosimetry estimates for the PET dopamine transporter probe 18F-FECNT in non-human primates
    Dnyanesh N Tipre
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bldg 1 Rm B3 10, 1 Center Drive, Bethesda, MD 20892 0135, USA
    Nucl Med Commun 25:737-42. 2004
    ..The aim of the current study was to quantify the distribution of radioactivity in three rhesus monkeys after the injection of approximately 185 MBq (5 mCi) of 18F-FECNT...
  37. pmc Quantification of translocator protein (18 kDa) in the human brain with PET and a novel radioligand, (18)F-PBR06
    Yota Fujimura
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892 2035, USA
    J Nucl Med 50:1047-53. 2009
    ....
  38. ncbi request reprint Whole-body biodistribution, radiation absorbed dose, and brain SPET imaging with [123i]5-i-A-85380 in healthy human subjects
    Masahiro Fujita
    Department of Psychiatry, Yale University School of Medicine and VA Connecticut Healthcare System, VA Connecticut 116A2, West Haven 06516, USA
    Eur J Nucl Med Mol Imaging 29:183-90. 2002
    ..These results suggest that [123I]5-I-A-85380 is a promising SPET agent to image alpha4beta2 nAChRs in humans, with acceptable dosimetry and high brain uptake...
  39. ncbi request reprint Human biodistribution and radiation dosimetry of the tachykinin NK1 antagonist radioligand [18F]SPA-RQ: comparison of thin-slice, bisected, and 2-dimensional planar image analysis
    David R Sprague
    Molecular Imaging Branch, NIMH, National Institutes of Health, Bethesda, Maryland 20892 0135, USA
    J Nucl Med 48:100-7. 2007
    ..The aims of this study were to estimate the radiation safety profile and relative risks of [(18)F]SPA-RQ with 3 different methods of image analysis...
  40. pmc Kinetic analysis in human brain of [11C](R)-rolipram, a positron emission tomographic radioligand to image phosphodiesterase 4: a retest study and use of an image-derived input function
    Paolo Zanotti-Fregonara
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, Maryland 20892 2035, USA
    Neuroimage 54:1903-9. 2011
    ..The aims of this study were to perform kinetic modeling of [(11)C](R)-rolipram in healthy humans using an arterial input function and to replace this arterial input in humans with an image-derived input function...
  41. pmc Image-derived input function in PET brain studies: blood-based methods are resistant to motion artifacts
    Paolo Zanotti-Fregonara
    Molecular Imaging Branch, National Institute of Mental Health, NIH, Bethesda, Maryland 20892 2035, USA
    Nucl Med Commun 33:982-9. 2012
    ..The present study used both simulated and clinical [11C](R)-rolipram data to assess the robustness of a blood-based IDIF method (a method that is ultimately normalized with blood samples) with regard to motion artifacts...
  42. ncbi request reprint PET [11C]DASB imaging of serotonin transporters in patients with alcoholism
    Amira K Brown
    Molecular Imaging Branch, National Institute of Mental Health, One Center Drive, Bethesda, MD 20892, USA
    Alcohol Clin Exp Res 31:28-32. 2007
    ..We measured densities of the serotonin transporter (SERT) in a moderate-sized sample of alcoholic patients who were assessed for aggressive characteristics...
  43. pmc Comparison of 18F- and 11C-labeled aryloxyanilide analogs to measure translocator protein in human brain using positron emission tomography
    Leah P Dickstein
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 1026, USA
    Eur J Nucl Med Mol Imaging 38:352-7. 2011
    ....
  44. pmc Retest imaging of [11C]NOP-1A binding to nociceptin/orphanin FQ peptide (NOP) receptors in the brain of healthy humans
    Talakad G Lohith
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA Electronic address
    Neuroimage 87:89-95. 2014
    ..Moderately good reproducibility and reliability measures of VT for [(11)C]NOP-1A make it a useful PET ligand for comparing NOP receptor binding between different subject groups or under different conditions in the same subject. ..
  45. pmc Increased in vivo expression of an inflammatory marker in temporal lobe epilepsy
    Jussi Hirvonen
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 1026, USA
    J Nucl Med 53:234-40. 2012
    ..In this study, we sought to determine whether in vivo expression of TSPO is increased ipsilateral to the seizure focus in patients with temporal lobe epilepsy...
  46. pmc Translocator protein PET imaging for glial activation in multiple sclerosis
    Unsong Oh
    Neuroimmunology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, Bldg 10 Rm 5C103, Bethesda, MD 20892, USA
    J Neuroimmune Pharmacol 6:354-61. 2011
    ..Global [(11)C]PBR28 binding showed correlation with disease duration (p = 0.041), but not with measures of clinical disability. These results further define TSPO as an informative marker of glial activation in MS...
  47. pmc Evaluation of novel N1-methyl-2-phenylindol-3-ylglyoxylamides as a new chemotype of 18 kDa translocator protein-selective ligand suitable for the development of positron emission tomography radioligands
    Victor W Pike
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, United States
    J Med Chem 54:366-73. 2011
    ..31 showed high affinity for HABs, MABs, and LABs. In conclusion, [(11)C]31 represents a promising new chemotype for developing novel TSPO radioligands as biomarkers of neuroinflammation...
  48. pmc In vitro and in vivo evaluation of (11)C-SD5024, a novel PET radioligand for human brain imaging of cannabinoid CB1 receptors
    Tetsuya Tsujikawa
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
    Neuroimage 84:733-41. 2014
    ..The results suggest that (11)C-SD5024 is slightly better than or equivalent to (11)C-OMAR and that both are suitable for clinical studies, especially those that involve two scans in one day. ..
  49. pmc Propofol decreases in vivo binding of 11C-PBR28 to translocator protein (18 kDa) in the human brain
    Christina S Hines
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, Maryland 20892 1026, USA
    J Nucl Med 54:64-9. 2013
    ..The purpose of this study was to determine whether the anesthetic propofol alters brain uptake of (11)C-PBR28 in healthy subjects...
  50. pmc Synthesis and evaluation of radioligands for imaging brain nociceptin/orphanin FQ peptide (NOP) receptors with positron emission tomography
    Victor W Pike
    Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, United States
    J Med Chem 54:2687-700. 2011
    ..Overall, [(11)C](S)-10c showed the most favorable receptor-specific signal and kinetics and is now selected for evaluation in human subjects...
  51. doi request reprint Increased peripheral benzodiazepine receptors in arterial plaque of patients with atherosclerosis: an autoradiographic study with [(3)H]PK 11195
    Yota Fujimura
    Molecular Imaging Branch, National Institute of Mental Health, Bethesda, MD, USA
    Atherosclerosis 201:108-11. 2008
    ..In conclusion, this study demonstrated that macrophage and inflammatory activity in atherosclerotic plaque can be imaged specifically by the binding of PBR indicating future application of PET imaging for PBR...
  52. ncbi request reprint Consensus nomenclature for in vivo imaging of reversibly binding radioligands
    Robert B Innis
    National Institute of Mental Health, Molecular Imaging Branch, Bethesda, Maryland, USA
    J Cereb Blood Flow Metab 27:1533-9. 2007
    ..An international group of experts in pharmacokinetic modeling recommends a consensus nomenclature to describe in vivo molecular imaging of reversibly binding radioligands...
  53. ncbi request reprint Specific in vitro binding of (S,S)-[3H]MeNER to norepinephrine transporters
    Subroto Ghose
    Molecular Imaging Branch, NIMH, NIH, Bethesda, Maryland 20892, USA
    Synapse 56:100-4. 2005
    ..3H]MeNER displayed much higher affinity for NET than for SERT or DAT in homogenate binding studies. Each of these features supports the binding specificity of this candidate in vivo NET ligand...
  54. ncbi request reprint Molecular imaging of the dopaminergic system and its association with human cognitive function
    Vanessa L Cropley
    Department of Physiology, Behavioural Neuroscience Laboratory, Monash Centre for Brain and Behaviour, Monash University, Victoria, Australia
    Biol Psychiatry 59:898-907. 2006
    ....
  55. ncbi request reprint Cerebral benzodiazepine receptors in depressed patients measured with [123I]iomazenil SPECT
    Akira Kugaya
    Department of Psychiatry, Yale University, New Haven, CT, USA
    Biol Psychiatry 54:792-9. 2003
    ..No in vivo study has been reported to measure postsynaptic GABA receptors in the patients...
  56. pmc Is metabotropic glutamate receptor 5 upregulated in prefrontal cortex in fragile X syndrome?
    Talakad G Lohith
    Molecular Imaging Branch, National Institute of Mental Health, 10 Center Drive, Bethesda, MD 20892 1026, USA
    Mol Autism 4:15. 2013
    ..However, mGluR5 density in human FXS remains unknown...
  57. ncbi request reprint Increase in prefrontal cortex serotonin 2A receptors following estrogen treatment in postmenopausal women
    Akira Kugaya
    Department of Psychiatry, Yale University, New Haven, Conn 06516, USA
    Am J Psychiatry 160:1522-4. 2003
    ..This study investigated the effect of estrogen on brain serotonin 2A (5-HT(2A)) receptors in postmenopausal women and whether there was any correlation of receptor changes with cognition and mood...
  58. pmc Image-derived input function for brain PET studies: many challenges and few opportunities
    Paolo Zanotti-Fregonara
    Molecular Imaging Branch, NIMH, NIH, Bethesda, Maryland 20892 2035, USA
    J Cereb Blood Flow Metab 31:1986-98. 2011
    ..Even in those cases, it only rarely translates into a less-invasive procedure for the patient. Finally, we discuss some possible alternative methods for obtaining less-invasive input function...
  59. ncbi request reprint Contribution of scatter and attenuation compensation to SPECT images of nonuniformly distributed brain activities
    Kyeong Min Kim
    Department of Investigative Radiology, National Cardiovascular Center Research Institute, 5 7 1 Fujishiro dai, Suita City, Osaka 565 8565, Japan
    J Nucl Med 44:512-9. 2003
    ..In this work, we evaluated the accuracy gained from a method of transmission-dependent convolution subtraction (TDCS) in the quantitation of activity that is highly concentrated in the striatum (STR)...
  60. ncbi request reprint Epigenetic inactivation of class II transactivator (CIITA) is associated with the absence of interferon-gamma-induced HLA-DR expression in colorectal and gastric cancer cells
    Ayumi Satoh
    First Department of Internal Medicine, Sapporo Medical University, Sapporo, Japan
    Oncogene 23:8876-86. 2004
    ..It thus appears that CIITA methylation is a key mechanism that enables some gastrointestinal cancer cells to escape immune surveillance...
  61. ncbi request reprint Nanoparticles of amorphous ruthenium sulfide easily obtainable from a TiO2-supported hexanuclear cluster complex [Ru6C(CO)16]2-: a highly active catalyst for the reduction of SO2 with H2
    Atsushi Ishiguro
    RIKEN, The Institute of Physical and Chemical Research, Hirosawa 2 1, Wako Shi, Saitama 351 0198, Japan
    Chemistry 8:3260-8. 2002
    ..Amorphous ruthenium sulfide maintains its nano-sized scale (approximately 14 A) regardless of the reaction temperature, while RuS(2) crystallite aggregates to form larger nonuniform particles...