期刊
EPILEPSY & BEHAVIOR
卷 29, 期 1, 页码 144-149出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.yebeh.2013.07.004
关键词
Epilepsy; Depression; Glutamate; Glutamine; Magnetic resonance spectroscopy
资金
- Shanghai Municipal Committee of Science and Technology [10JC1402800, 114119a5600, 13DJ1400301]
- National Natural Science Foundation of China [31271188]
Purpose: Our study aimed to investigate whether the glutamatergic systemin the hippocampus is correlated with depressive symptoms in patients with epilepsy. Methods: Fifty patients with epilepsy were recruited and divided into three groups on the basis of their Hamilton Depression Rating Scale (HAMD) scores. Single-voxel proton magnetic resonance spectroscopy (H-1-MRS) was carried out. Pearson correlation analysis and multiple linear regression analysis were performed to investigate any correlation between the variables of hippocampal metabolites and HAMD scores. Results: Proton magnetic resonance spectroscopy analysis showed that the ratio of glutamate/glutamine to creatine (Glx/Cr) in the right hippocampus was significantly increased in patients with moderate depression and correlated positively with HAMD scores. Multiple linear regression analysis showed that the ratio of Glx/Cr in the right hippocampus was an independent risk factor relating to depressive symptoms in patients with epilepsy. Conclusion: A disturbance of the hippocampal glutamatergic system may be involved in the pathogenesis of depression in epilepsy. (C) 2013 Elsevier Inc. All rights reserved.
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