Effects of age and sex on the concentrations of glutamate and glutamine in the human brain
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Effects of age and sex on the concentrations of glutamate and glutamine in the human brain. / Hädel, Sven; Wirth, Christoph; Rapp, Michael; Gallinat, Jürgen; Schubert, Florian.
In: J MAGN RESON IMAGING, Vol. 38, No. 6, 01.12.2013, p. 1480-7.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Effects of age and sex on the concentrations of glutamate and glutamine in the human brain
AU - Hädel, Sven
AU - Wirth, Christoph
AU - Rapp, Michael
AU - Gallinat, Jürgen
AU - Schubert, Florian
N1 - Copyright © 2013 Wiley Periodicals, Inc.
PY - 2013/12/1
Y1 - 2013/12/1
N2 - PURPOSE: To determine the effects of age and sex on cerebral glutamate and glutamine concentrations in a large sample of healthy humans using a dedicated measuring and evaluation procedure. Exploratory examinations of other brain metabolites were also conducted.MATERIALS AND METHODS: In 118 healthy subjects aged 19 to 55 years (59 female) absolute concentrations of glutamate, glutamine, N-acetylaspartate (NAA), total creatine, and total choline (tCho) in voxels comprising the left hippocampus (HC) and the anterior cingulate cortex (ACC) were investigated using point-resolved spectroscopy with an echo time of 80 ms at 3 Tesla in combination with a reliable quantification procedure. Special care was taken to correct for multiple comparisons.RESULTS: An age-related decline of the concentrations of glutamate in both regions studied was observed whereas glutamine levels in ACC increased with age. Statistically significant sex-related differences were detected for glutamate in the HC and for tCho in the ACC. NAA decreased with age in both regions, the significance not surviving Bonferroni correction.CONCLUSION: The results demonstrate effects of age and gender on glutamate, glutamine, choline containing compounds, and NAA in healthy human brain. They add to the growing evidence for gender-specific differences in cerebral neurotransmission, metabolism, and structure across the lifespan.
AB - PURPOSE: To determine the effects of age and sex on cerebral glutamate and glutamine concentrations in a large sample of healthy humans using a dedicated measuring and evaluation procedure. Exploratory examinations of other brain metabolites were also conducted.MATERIALS AND METHODS: In 118 healthy subjects aged 19 to 55 years (59 female) absolute concentrations of glutamate, glutamine, N-acetylaspartate (NAA), total creatine, and total choline (tCho) in voxels comprising the left hippocampus (HC) and the anterior cingulate cortex (ACC) were investigated using point-resolved spectroscopy with an echo time of 80 ms at 3 Tesla in combination with a reliable quantification procedure. Special care was taken to correct for multiple comparisons.RESULTS: An age-related decline of the concentrations of glutamate in both regions studied was observed whereas glutamine levels in ACC increased with age. Statistically significant sex-related differences were detected for glutamate in the HC and for tCho in the ACC. NAA decreased with age in both regions, the significance not surviving Bonferroni correction.CONCLUSION: The results demonstrate effects of age and gender on glutamate, glutamine, choline containing compounds, and NAA in healthy human brain. They add to the growing evidence for gender-specific differences in cerebral neurotransmission, metabolism, and structure across the lifespan.
KW - Adult
KW - Aging
KW - Aspartic Acid
KW - Choline
KW - Female
KW - Glutamic Acid
KW - Glutamine
KW - Gyrus Cinguli
KW - Hippocampus
KW - Humans
KW - Magnetic Resonance Imaging
KW - Magnetic Resonance Spectroscopy
KW - Male
KW - Neurotransmitter Agents
KW - Reproducibility of Results
KW - Sensitivity and Specificity
KW - Sex Factors
KW - Young Adult
U2 - 10.1002/jmri.24123
DO - 10.1002/jmri.24123
M3 - SCORING: Journal article
C2 - 23564615
VL - 38
SP - 1480
EP - 1487
JO - J MAGN RESON IMAGING
JF - J MAGN RESON IMAGING
SN - 1053-1807
IS - 6
ER -