Psychiatry Investig.
2018 Sep;15(9):891-899. 10.30773/pi.2018.06.17.
Peripheral and Central Metabolites Affecting Depression, Anxiety, Suicidal Ideation, and Anger in Complex Regional Pain Syndrome Patients Using a Magnetic Resonance Spectroscopy: A Pilot Study
- Affiliations
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- 1Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea. basuare@daum.net
- 2Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.
- 3Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
- 4Department of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
- 5Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea.
- KMID: 2424022
- DOI: http://doi.org/10.30773/pi.2018.06.17
Abstract
OBJECTIVE
This study investigated peripheral and central metabolites affecting depression, anxiety, suicidal ideation, and anger in complex regional pain syndrome (CRPS) patients.
METHODS
Metabolite levels were determined in the right and left thalamus and insula, in 12 CRPS patients using magnetic resonance spectroscopy (MRS).
RESULTS
There were positive correlations between valine (Val)/tNAA (N-acetylaspartate+N-acetylaspartylglutamate) and the anxiety, and a negative correlation between glutamine (Gln)/NAA and the depression. There were positive correlations between alanine (Ala)/Gln and the depression and suicidal ideation, between glutamate (Glu)/Gln and the depression and suicidal ideation, between N-acetylaspartylglutamate (NAAG)/Gln and the depression. There was a positive correlation between Ala/NAAG and the trait anger and a negative correlation between creatine (Cr)/N-acetylaspartate (NAA) and the trait anger. There was a negative correlation between Cr/Glx (Glu+Gln) and the trait anger. High hemoglobin and alkaline phosphatase were associated with low pain levels, but CO2 and chloride showed positive correlations with pain levels in CRPS patients. Peripheral glucose, CO2 and chloride were associated with depression, anxiety, anger and suicidal ideation.
CONCLUSION
The specific central and peripheral metabolites were associated with psychological disorders including depression, anxiety, suicidal ideation and anger in CRPS patients, showing pathological interactions between a painful body and mind.
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