炎症和表观遗传变化与青少年与可卡因基糊成的注意力缺陷相关
Silvina V Sonzogni1, Laura A de la Fuente2, Camila Mimura1
1Neuroepigenetics Laboratory, Institute of Biological Chemistry (IQUIBICEN-CONICET), Department of Biological Chemistry, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina.
Journal of psychiatric research
|October 31, 2025
概括
青少年中的可卡因基糊 (CBP) 和可卡因 (COC) 成显示出明显的表观遗传变化,影响DNA甲基化和注意力. 与COC成不同,CBP成与较低的DNMT1表达和注意力受损有关.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 精神病学是一个精神病学.
背景情况:
- 可卡因基糊 (CBP) 是一种低成本,高毒性的可卡因衍生品,在阿根廷流行.
- CBP和可卡因 (COC) 成影响青少年,特别是来自低社会经济背景的青少年.
- 了解CBP和COC成的分子机制对于开发有针对性的干预措施至关重要.
研究的目的:
- 调查CBP和COC依赖的青少年的炎症和表观遗传变化.
- 探索这些分子变化与注意力缺陷之间的关系.
- 鉴定成和相关认知障碍的潜在治疗点.
主要方法:
- 在青少年中对NF-κB,TNF-α,DNMT1和DNMT3A的基因表达分析,这些青少年有CBP依赖,COC依赖和对照.
- 全球DNA甲基化水平的测量.
- 评估注意力表现及其与表观遗传标记物的相关性.
主要成果:
- 与对照组相比,CBP和COC依赖都显示NF-κB和TNF-α的表达减少.
- 依赖CBP的青少年表现出较低的DNMT1和DNMT3A表达,全球DNA甲基化水平较低.
- 依赖COC的青少年显示DNMT1表达的减少.
- DNMT1表达与注意力相关,在CBP组中观察到的反向关系.
结论:
- 在CBP和COC成之间存在不同的表观遗传特征.
- 表观遗传变化,特别是DNA甲基化变化,与患有物质使用障碍的青少年的注意力缺陷有关.
- DNMT1可以作为潜在的生物标志物和治疗目标,用于成的认知缺陷.
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