title: Comment on "Magnetic resonance spectroscopy identifies neural progenitor cells in the live human brain".
abstract: Manganas et al. (Reports, 9 November 2007, p. 980) used a metabolic biomarker identified in vitro to characterize the existence of neural progenitor cells in vivo. Although their detailed experiments and general approach are laudable, aspects of their magnetic resonance spectroscopy data and analyses raise questions about their results.
authors.affiliation: Department of Radiology, University of Washington, 1959 Northeast Pacific Street, Seattle, WA 98195, USA. sethf@u.washington.edu
authors.forename: Seth D
authors.initials: SD
authors.lastname: Friedman
mesh_terms: D000465:Algorithms; D001224:Aspartic Acid / Q000031:analogs & derivatives / Q000032:analysis; D015415:Biomarkers / Q000032:analysis*; D001921:Brain / Q000166:cytology*; D006801:Humans; D008055:Lipids / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009474:Neurons / Q000737:chemistry / Q000166:cytology*; D013234:Stem Cells / Q000737:chemistry / Q000166:cytology*
chemical_list: D015415:Biomarkers; D008055:Lipids; D001224:Aspartic Acid; C000179:N-acetylaspartate