Methylation of the Glucocorticoid Receptor Gene in Children with Somatic Symptom Disorder: A Case-Control Study
Abstract
1. Introduction
2. Results
2.1. Participant Characteristics
2.2. GR Gene Methylation Rate
2.3. BDI-II and KINDL Scores
2.4. Correlations Between GR Methylation Rate and Symptomatology
3. Materials and Methods
3.1. Participants
3.2. Procedure
3.3. DNA Methylation Analysis
3.4. Statistical Analysis
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
References
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Indicators | SSD (n = 34) | Controls (n = 29) | p-Value (Mann–Whitney Test) (Fisher’s Exact Test) |
---|---|---|---|
Age, mean (SD) years | 13.38 (1.88) | 12.71 (1.86) | 0.22 |
Female, n (%) | 18 (52.94) | 11 (37.93) | 0.23 |
Household income | 0.38 | ||
JPY 0–4,999,999, n (%) | 10 (29.41) | 11 (37.93) | |
JPY 5,000,000–10,000,000, n (%) | 11 (32.35) | 11 (37.93) | |
JPY 10,000,000+, n (%) | 9 (26.47) | 5 (17.24) | |
Perinatal complication, n (%) | 2 (5.88) | 6 (20.69) | 0.09 |
Hospitalization, n (%) | 8 (23.53) | 6 (20.70) | 0.44 |
Victim of bullying, n (%) | 8 (23.53) | 4 (13.79) | 0.33 |
Victim of abuse, n (%) | 3 (8.82) | 2 (6.90) | 0.73 |
Familial mental health problem, n (%) | 13 (38.24) | 3 (10.34) | <0.01 |
Parental divorce, n (%) | 5 (14.70) | 4 (13.79) | 0.69 |
Indicators | Under Age of 13 (n = 8) | Ages 13 and Over (n = 26) | p-Value (Fisher’s Exact Test) |
---|---|---|---|
Irritable bowel syndrome, n (%) | 7 (88) | 18 (69) | 0.30 |
Orthostatic dysregulation, n (%) | 3 (38) | 22 (85) | 0.03 |
Chronic headache, n (%) | 0 (0) | 4 (15) | 0.32 |
Fibromyalgia syndrome, n (%) | 0 (0) | 1 (4) | 0.77 |
Several somatic symptom diseases, n (%) | 2 (25) | 17 (65) | 0.08 |
Duration of the disease more than three years, n (%) | 1 (13) | 14 (54) | 0.02 |
CpG Site | BDI-II | KINDL Total | Physical Well-Being | Emotional Well-Being | Self-Esteem | Family | Friends | School |
---|---|---|---|---|---|---|---|---|
SSD (n = 34) | 16.69 (12.16) ** | 77.16 (12.95) ** | 11.97 (3.02) * | 14.81 (3.28) * | 9.94 (3.49) | 14.89 (3.56) | 14.19 (4.03) * | 11.41 (4.15) * |
Controls (n = 29) | 6.70 (5.92) ** | 91.22 (11.95) ** | 16.67 (2.73) * | 16.81 (3.01) * | 11.89 (3.97) | 15.59 (3.53) | 16.85 (2.78) * | 13.41 (2.90) * |
p-Value | 0.001 | 0.001 | 0.000 | 0.03 | 0.08 | 0.62 | 0.02 | 0.04 |
BDI-II | KINDL Total | Physical Well-Being | Emotional Well-Being | Self-Esteem | Family | Friends | School | |
---|---|---|---|---|---|---|---|---|
CpG 19 | 0.39 (0.09) | −0.46 (0.04) * | −0.46 (0.04) * | −0.11 (0.66) | −0.09 (0.71) | −0.19 (0.43) | −0.36 (0.12) | −0.30 (0.20) |
CpG 29 | −0.22 (0.35) | 0.13 (0.58) | 0.49 (0.03) * | −0.25 (0.29) | −0.12 (0.61) | 0.20 (0.40) | 0.06 (0.81) | −0.14 (0.56) |
CpG 30 | 0.37 (0.11) | −0.47 (0.04) * | −0.53 (0.02) * | 0.08 (0.75) | −0.33 (0.16) | −0.41 (0.07) | −0.14 (0.56) | −0.33 (0.16) |
CpG 32 | −0.47 (0.04) * | 0.52 (0.02) * | 0.31 (0.20) | 0.28 (0.25) | 0.39 (0.10) | 0.37 (0.12) | 0.60 (0.008) ** | 0.31 (0.20) |
CpG 35 | −0.63 (0.003) ** | 0.47 (0.04) * | 0.72 (0.00) ** | 0.26 (0.28) | 0.18 (0.46) | −0.03 (0.91) | 0.28 (0.23) | 0.14 (0.56) |
BDI-II | KINDL Total | Physical Well-Being | Emotional Well-Being | Self-Esteem | Family | Friends | School | |
---|---|---|---|---|---|---|---|---|
CpG 5 | 0.08 (0.63) | −0.14 (0.40) | −0.21 (0.22) | −0.12 (0.49) | −0.08 (0.62) | −0.11 (0.51) | −0.05 (0.77) | −0.01 (0.93) |
CpG 36 | −0.02 (0.93) | −0.09 (0.61) | −0.15 (0.39) | −0.26 (0.12) | −0.05 (0.76) | −0.20 (0.23) | 0.009 (0.96) | 0.05 (0.78) |
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Hatta, K.; Kantake, M.; Tanaka, K.; Nakaoka, H.; Shimizu, T.; Shoji, H. Methylation of the Glucocorticoid Receptor Gene in Children with Somatic Symptom Disorder: A Case-Control Study. Epigenomes 2025, 9, 22. https://doi.org/10.3390/epigenomes9020022
Hatta K, Kantake M, Tanaka K, Nakaoka H, Shimizu T, Shoji H. Methylation of the Glucocorticoid Receptor Gene in Children with Somatic Symptom Disorder: A Case-Control Study. Epigenomes. 2025; 9(2):22. https://doi.org/10.3390/epigenomes9020022
Chicago/Turabian StyleHatta, Kyoko, Masato Kantake, Kyoko Tanaka, Hirofumi Nakaoka, Toshiaki Shimizu, and Hiromichi Shoji. 2025. "Methylation of the Glucocorticoid Receptor Gene in Children with Somatic Symptom Disorder: A Case-Control Study" Epigenomes 9, no. 2: 22. https://doi.org/10.3390/epigenomes9020022
APA StyleHatta, K., Kantake, M., Tanaka, K., Nakaoka, H., Shimizu, T., & Shoji, H. (2025). Methylation of the Glucocorticoid Receptor Gene in Children with Somatic Symptom Disorder: A Case-Control Study. Epigenomes, 9(2), 22. https://doi.org/10.3390/epigenomes9020022