The potential of SLC6A4 gene methylation analysis for the diagnosis and treatment of major depression
| Autor: | Kounosuke Tsuchiyama, Masaru Mimura, Yasumasa Okamoto, Yosuke Kokubo, Takeshi Terao, Shigeru Morinobu, Tsutomu Kataoka, Shigeto Yamawaki, Takeshi Inoue, Manabu Fuchikami, Satoshi Okada, Kana Yokomaku, Masahiro Segawa, Ichiro Kusumi, Tsukasa Koyama |
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| Rok vydání: | 2013 |
| Předmět: |
Oncology
Adult Male medicine.medical_specialty Genotype Statistics as Topic Internal medicine medicine Humans Allele Biological Psychiatry Serotonin transporter Depression (differential diagnoses) Genetics Psychiatric Status Rating Scales Serotonin Plasma Membrane Transport Proteins Depressive Disorder Major biology Hamilton Rating Scale for Depression Methylation DNA Methylation Middle Aged Antidepressive Agents Psychiatry and Mental health CpG site Pharmacogenetics Case-Control Studies DNA methylation biology.protein Antidepressant CpG Islands Female |
| Zdroj: | Journal of psychiatric research. 53 |
| ISSN: | 1879-1379 |
| Popis: | We examined the utility of DNA methylation profiles at the CpG island of SLC6A4 (DMS) as a diagnostic biomarker for major depression (MD). In addition, the relationship between DMS and the serotonin transporter gene-linked polymorphic region (5-HTTLPR) allele, the severity of symptoms, number of early adversities, and therapeutic responses to antidepressants were examined. Genomic DNA was extracted from peripheral blood of Japanese healthy controls and patients with MD before and after treatment. DMS was analyzed using a MassARRAY Compact System. The severity of depression was evaluated using the Hamilton Rating Scale for Depression, and early adversity was evaluated using the Early Trauma Inventory. We were unable to distinguish between and healthy controls, or between unmedicated patients and medicated patients using DMS. The 5-HTTLPR allele had no significant effect on DMS. The methylation rates for several CpGs differed significantly after treatment. Notably, the methylation rate of CpG 3 in patients with better therapeutic responses was significantly higher than that in patients with poorer responses. Although further studies examining the function of specific CpG units of SLC6A4 are required, these results suggest that the pre-treatment methylation rate of SLC6A4 is associated with therapeutic responses to antidepressants in unmedicated patients with MD. |
| Databáze: | OpenAIRE |
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