Elevated gamma-aminobutyric acid levels in chronic schizophrenia.
Elevated gamma-aminobutyric acid levels in chronic schizophrenia.
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DOI:
10.1016/j.biopsych.2010.05.016
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发表时间:
2010-10-01
影响因子:
10.6
通讯作者:
Renshaw, Perry F.
中科院分区:
文献类型:
--
作者:
Oenguer, Dost;Prescot, Andrew P.;McCarthy, Julie;Cohen, Bruce M.;Renshaw, Perry F.
Despite widely-replicated abnormalities of gamma-aminobutyric acid (GABA) neurons in schizophrenia postmortem, few studies have measured tissue GABA levels in vivo. We used proton magnetic resonance spectroscopy to measure tissue GABA levels in participants with schizophrenia and healthy controls in the anterior cingulate cortex (ACC) and parieto-occipital cortex (POC). 21 schizophrenia participants effectively treated on a stable medication regimen (mean age 39.0, 14 male) and 19 healthy controls (mean age 36.3, 12 male) underwent a proton magnetic resonance spectroscopy scan using GABA-selective editing at 4 Tesla after providing informed consent. Data were collected from two 16.7cc voxels and analyzed using LCModel. We found elevations in GABA/Cr in the schizophrenia group compared with controls (F(1,65)=4.149, p=0.046) in both brain areas (15.5% elevation in ACC, 11.9% in POC). We also found a positive correlation between GABA/Cr and Glu/Cr which was not accounted for by %GM or brain region. We found elevated GABA/Cr in participants with chronically treated schizophrenia. Postmortem studies report evidence for dysfunctional GABAergic neurotransmission in schizophrenia. Elevated GABA levels, whether primary to illness or compensatory to another process, may be associated with dysfunctional GABAergic neurotransmission in chronic schizophrenia.
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影响因子:
4.7
作者:
MCCARTHY, BW;GOMES, UR;ROUX, JT
通讯作者:
ROUX, JT
影响因子:
3.3
作者:
Ongur, Dost;Prescot, Andrew P.;Olson, David P.
通讯作者:
Olson, David P.
DOI:
10.1073/pnas.0703806104
发表时间:
2007-06-12
影响因子:
11.1
作者:
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通讯作者:
Minns, Martin
影响因子:
17.7
作者:
Carter, CS;MacDonald, AW;Stenger, VA
通讯作者:
Stenger, VA
影响因子:
3.3
作者:
PROVENCHER, SW
通讯作者:
PROVENCHER, SW