Daniel Pelletier

Summary

Affiliation: University of California
Country: USA

Publications

  1. pmc Estimation of metabolite T1 relaxation times using tissue specific analysis, signal averaging and bootstrapping from magnetic resonance spectroscopic imaging data
    H Ratiney
    Department of Neurology, University of California, 185 Berry Street, Box 0946, San Francisco, CA 94107, USA
    MAGMA 20:143-55. 2007
  2. pmc A genome-wide association study of brain lesion distribution in multiple sclerosis
    Pierre Antoine Gourraud
    Department of Neurology, School of Medicine, University of California, San Francisco, 675 Nelson Rising Lane, Suite 215, San Francisco, CA 94158, USA
    Brain 136:1012-24. 2013
  3. pmc Genetic variation influences glutamate concentrations in brains of patients with multiple sclerosis
    Sergio E Baranzini
    Department of Neurology, School of Medicine, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143 0435, USA
    Brain 133:2603-11. 2010
  4. pmc High-resolution phased-array MRI of the human brain at 7 tesla: initial experience in multiple sclerosis patients
    Meredith Metcalf
    UCSF UC Berkeley Joint Graduate Group in Bioengineering, University of California, San Francisco and Berkeley, CA 94017, USA
    J Neuroimaging 20:141-7. 2010
  5. doi request reprint Difference in disease burden and activity in pediatric patients on brain magnetic resonance imaging at time of multiple sclerosis onset vs adults
    Emmanuelle Waubant
    UCSF Regional Pediatric Multiple Sclerosis Center, 350 Parnassus Ave, Ste 908, San Francisco, CA 94117, USA
    Arch Neurol 66:967-71. 2009
  6. doi request reprint Connecting white matter injury and thalamic atrophy in clinically isolated syndromes
    Roland G Henry
    Department of Radiology and Biomedical Imaging, University of California at San Francisco, USA
    J Neurol Sci 282:61-6. 2009
  7. pmc Pathway and network-based analysis of genome-wide association studies in multiple sclerosis
    Sergio E Baranzini
    Department of Neurology, School of Medicine, University of California San Francisco, 513 Parnassus Ave Room S 256, San Francisco, CA 94143 0435, USA
    Hum Mol Genet 18:2078-90. 2009
  8. ncbi request reprint TE-averaged two-dimensional proton spectroscopic imaging of glutamate at 3 T
    Radhika Srinivasan
    Center for Molecular and Functional Imaging, University of California San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107 1739, USA
    Neuroimage 30:1171-8. 2006
  9. ncbi request reprint Measurement of in vivo multi-component T2 relaxation times for brain tissue using multi-slice T2 prep at 1.5 and 3 T
    Joonmi Oh
    Department of Radiology, Center for Molecular and Functional Imaging, University of California, San Francisco, CA 94107, USA
    Magn Reson Imaging 24:33-43. 2006
  10. pmc Association between stressful life events and exacerbation in multiple sclerosis: a meta-analysis
    David C Mohr
    Department of Psychiatry, University of California, San Francisco, CA 94142, USA
    BMJ 328:731. 2004

Research Grants

Detail Information

Publications20

  1. pmc Estimation of metabolite T1 relaxation times using tissue specific analysis, signal averaging and bootstrapping from magnetic resonance spectroscopic imaging data
    H Ratiney
    Department of Neurology, University of California, 185 Berry Street, Box 0946, San Francisco, CA 94107, USA
    MAGMA 20:143-55. 2007
    ....
  2. pmc A genome-wide association study of brain lesion distribution in multiple sclerosis
    Pierre Antoine Gourraud
    Department of Neurology, School of Medicine, University of California, San Francisco, 675 Nelson Rising Lane, Suite 215, San Francisco, CA 94158, USA
    Brain 136:1012-24. 2013
    ....
  3. pmc Genetic variation influences glutamate concentrations in brains of patients with multiple sclerosis
    Sergio E Baranzini
    Department of Neurology, School of Medicine, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143 0435, USA
    Brain 133:2603-11. 2010
    ..Spectroscopy-based imaging provides a novel quantitative endophenotype for genetic association studies directed towards identifying new factors that contribute to the heterogeneity of clinical expression of multiple sclerosis...
  4. pmc High-resolution phased-array MRI of the human brain at 7 tesla: initial experience in multiple sclerosis patients
    Meredith Metcalf
    UCSF UC Berkeley Joint Graduate Group in Bioengineering, University of California, San Francisco and Berkeley, CA 94017, USA
    J Neuroimaging 20:141-7. 2010
    ..Clear involvement of the GM was observed with improved morphological detail in comparison to imaging at lower-field strength...
  5. doi request reprint Difference in disease burden and activity in pediatric patients on brain magnetic resonance imaging at time of multiple sclerosis onset vs adults
    Emmanuelle Waubant
    UCSF Regional Pediatric Multiple Sclerosis Center, 350 Parnassus Ave, Ste 908, San Francisco, CA 94117, USA
    Arch Neurol 66:967-71. 2009
    ..To compare initial brain magnetic resonance imaging (MRI) characteristics of children and adults at multiple sclerosis (MS) onset...
  6. doi request reprint Connecting white matter injury and thalamic atrophy in clinically isolated syndromes
    Roland G Henry
    Department of Radiology and Biomedical Imaging, University of California at San Francisco, USA
    J Neurol Sci 282:61-6. 2009
    ..66, p<0.001), a finding not observed in regions outside the thalamocortical white matter. These results provide compelling evidence for a direct relationship between white matter lesions and thalamic atrophy in CIS patients...
  7. pmc Pathway and network-based analysis of genome-wide association studies in multiple sclerosis
    Sergio E Baranzini
    Department of Neurology, School of Medicine, University of California San Francisco, 513 Parnassus Ave Room S 256, San Francisco, CA 94143 0435, USA
    Hum Mol Genet 18:2078-90. 2009
    ..In addition to the immunological pathways previously identified, we report here for the first time the potential involvement of neural pathways in MS susceptibility...
  8. ncbi request reprint TE-averaged two-dimensional proton spectroscopic imaging of glutamate at 3 T
    Radhika Srinivasan
    Center for Molecular and Functional Imaging, University of California San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107 1739, USA
    Neuroimage 30:1171-8. 2006
    ....
  9. ncbi request reprint Measurement of in vivo multi-component T2 relaxation times for brain tissue using multi-slice T2 prep at 1.5 and 3 T
    Joonmi Oh
    Department of Radiology, Center for Molecular and Functional Imaging, University of California, San Francisco, CA 94107, USA
    Magn Reson Imaging 24:33-43. 2006
    ..The use of the eight-channel head coil involved more accurate quantification of T2 relaxation times particularly when the number of echoes was limited...
  10. pmc Association between stressful life events and exacerbation in multiple sclerosis: a meta-analysis
    David C Mohr
    Department of Psychiatry, University of California, San Francisco, CA 94142, USA
    BMJ 328:731. 2004
    ..To quantify the association between stressful life events and exacerbations of multiple sclerosis...
  11. ncbi request reprint Measurement of whole-brain atrophy in multiple sclerosis
    Daniel Pelletier
    Multiple Sclerosis Center, University of California San Francisco, 350 Parnassus Avenue, Suite 908, San Francisco, CA 94117, USA
    J Neuroimaging 14:11S-19S. 2004
    ..Determination of the relative reproducibility, precision, sensitivity, and validity of these methods will promote the use of whole-brain atrophy measures as components of comprehensive MRI-based outcome assessment in MS clinical trials...
  12. ncbi request reprint Corpus callosum axonal injury in multiple sclerosis measured by proton magnetic resonance spectroscopic imaging
    Joonmi Oh
    Magnetic Resonance Science Center, Department of Radiology, University of California San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107, USA
    Arch Neurol 61:1081-6. 2004
    ..Axonal damage has been observed in normal-appearing white matter (NAWM) for patients with multiple sclerosis (MS)...
  13. ncbi request reprint Evidence of elevated glutamate in multiple sclerosis using magnetic resonance spectroscopy at 3 T
    Radhika Srinivasan
    Center for Molecular and Functional Imaging, Department of Radiology, University of California San Francisco, 185 Berry Street, 350, San Francisco, CA 94107 1739, USA
    Brain 128:1016-25. 2005
    ..001) myo-inositol levels in acute lesions compared with control white matter. These in vivo results support the hypothesis that altered glutamate metabolism is present in brains of multiple sclerosis patients...
  14. ncbi request reprint A temporal framework for understanding the effects of stressful life events on inflammation in patients with multiple sclerosis
    David C Mohr
    Department of Psychiatry and Neurology, University of California, San Francisco, CA 94131, USA
    Brain Behav Immun 20:27-36. 2006
    ..These three hypotheses are not necessarily mutually exclusive. Data on psychosocial mediators and moderators are also briefly reviewed and future research directions are discussed...
  15. ncbi request reprint Directional diffusion in relapsing-remitting multiple sclerosis: a possible in vivo signature of Wallerian degeneration
    Roland G Henry
    Magnetic Resonance Science Center, Department of Radiology, University of California, San Francisco 94143 1290, USA
    J Magn Reson Imaging 18:420-6. 2003
    ..To examine the role of directional dependence of the apparent diffusion coefficients in the evaluation of normal-appearing brain regions of patients with relapsing-remitting multiple sclerosis...
  16. pmc Vitamin D status predicts new brain magnetic resonance imaging activity in multiple sclerosis
    Ellen M Mowry
    Multiple Sclerosis Center, Department of Neurology, University of California at San Francisco, San Francisco, CA, USA
    Ann Neurol 72:234-40. 2012
    ..We sought to determine whether vitamin D status is associated with developing new T2 lesions or contrast-enhancing lesions on brain magnetic resonance imaging (MRI) in relapsing multiple sclerosis (MS)...
  17. pmc The thalamus and multiple sclerosis: modern views on pathologic, imaging, and clinical aspects
    Alireza Minagar
    Department of Neurology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
    Neurology 80:210-9. 2013
    ....
  18. pmc Switching multiple sclerosis patients with breakthrough disease to second-line therapy
    Tamara Castillo-Trivino
    Multiple Sclerosis Center, Department of Neurology, University of California San Francisco, San Francisco, California, USA
    PLoS ONE 6:e16664. 2011
    ..The effect of natalizumab monotherapy in patients with breakthrough disease is unknown...
  19. doi request reprint MR spectroscopic imaging of glutathione in the white and gray matter at 7 T with an application to multiple sclerosis
    Radhika Srinivasan
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94107 1739, USA
    Magn Reson Imaging 28:163-70. 2010
    ..Reduced GSH was also observed in a MS WM lesion. This preliminary investigation demonstrates the potential of this marker to probe oxidative state in MS...
  20. pmc Modeling the cumulative genetic risk for multiple sclerosis from genome-wide association data
    Joanne H Wang
    Department of Neurology, University of California San Francisco, San Francisco, CA 94143 0435, USA
    Genome Med 3:3. 2011
    ..Nevertheless, the knowledge of MS genetics remains incomplete, with many risk alleles still to be revealed...

Research Grants2