创伤背景通过DNA甲基化对儿童心理健康产生代际影响
Stefanie Pilkay1, Andie Riffer2, Andrew Carroll1
1Falk College of Sport and Human Dynamics, School of Social Work, Syracuse University, Syracuse, NY USA.
Epigenetics
|April 5, 2024
概括
与母亲童年创伤相关的新生儿DNA甲基化 (DNAm) 影响儿童的心理健康. 这种mDNA调解了男孩的创伤效应,显示了代际对后代发育的影响.
科学领域:
- 表观遗传学和发育心理学
- 跨代创伤研究研究.
- 儿童心理健康研究 儿童心理健康研究
背景情况:
- 母亲的童年创伤可能会对后代的心理健康产生持久的影响.
- 基因甲基化 (DNAm) 是一个由环境因素影响的关键表观遗传机制.
- 了解创伤的代际传播对于早期干预至关重要.
研究的目的:
- 调查与母亲童年虐待相关的新生儿DNAm是否会影响儿童的心理健康和成长.
- 为了确定新生儿的DNAm是否调解或缓解儿童的发育结果.
- 探索DNAm对母亲创伤后儿童发育的性别特异性影响.
主要方法:
- 利用了来自Avon长度研究的父母和孩子 (N=903) 的数据.
- 在带血液中测量了新生儿DNAm,并分析了与儿童心理健康和生长结果的关联.
- 采用线性回归,Sobel调度测试和调节分析.
主要成果:
- 新生儿DNAm在特定的CpG位点与分离焦虑,恐惧和不快乐相关,在6-7岁的孩子中.
- 观察到特定性别的关联:男孩与焦虑/恐惧有关,女孩与恐惧/不快乐有关.
- 带血DNAm调解了母亲童年创伤对男孩后代心理健康的影响.
结论:
- 母亲创伤的代际影响在新生儿DNAm中很明显,影响儿童的心理健康.
- 新生儿DNAm通过性别特定的模式,调解母亲童年创伤对后代心理健康的影响.
- 出生时的表观遗传标记可以作为由于代际创伤造成的发育风险的早期指标.
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