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Early Life Stress, Frontoamygdala Connectivity, and Biological Aging in Adolescence: A Longitudinal Investigation.
Cerebral Cortex ( IF 3.7 ) Pub Date : 2020-03-26 , DOI: 10.1093/cercor/bhaa057
Jonas G Miller 1 , Tiffany C Ho 1, 2, 3 , Kathryn L Humphreys 4 , Lucy S King 2 , Lara C Foland-Ross 1 , Natalie L Colich 5 , Sarah J Ordaz 6 , Jue Lin 7 , Ian H Gotlib 2
Affiliation  

Early life stress (ELS) may accelerate frontoamygdala development related to socioemotional processing, serving as a potential source of resilience. Whether this circuit is associated with other proposed measures of accelerated development is unknown. In a sample of young adolescents, we examined the relations among ELS, frontoamygdala circuitry during viewing of emotional faces, cellular aging as measured by telomere shortening, and pubertal tempo. We found that greater cumulative severity of ELS was associated with stronger negative coupling between bilateral centromedial amygdala and the ventromedial prefrontal cortex, a pattern that may reflect more mature connectivity. More negative frontoamygdala coupling (for distinct amygdala subdivisions) was associated with slower telomere shortening and pubertal tempo over 2 years. These potentially protective associations of negative frontoamygdala connectivity were most pronounced in adolescents who had been exposed to higher ELS. Our findings provide support for the formulation that ELS accelerates maturation of frontoamygdala connectivity and provide novel evidence that this neural circuitry confers protection against accelerated biological aging, particularly for adolescents who have experienced higher ELS. Although negative frontoamygdala connectivity may be an adaptation to ELS, frontoamygdala connectivity, cellular aging, and pubertal tempo do not appear to be measures of the same developmental process.

中文翻译:

青春期的早期生活压力、额杏仁核连通性和生物衰老:纵向调查。

早期生活压力 (ELS) 可能会加速与社会情绪处理相关的额杏仁核发育,作为恢复力的潜在来源。该电路是否与其他提议的加速发展措施相关尚不清楚。在一个青少年样本中,我们检查了 ELS、观察情绪面孔期间的额杏仁核回路、通过端粒缩短测量的细胞衰老和青春期节奏之间的关系。我们发现 ELS 的累积严重程度越大,与双侧中心内侧杏仁核和腹内侧前额叶皮层之间更强的负耦合相关,这种模式可能反映了更成熟的连通性。更负面的额杏仁核耦合(针对不同的杏仁核细分)与 2 年内较慢的端粒缩短和青春期节奏相关。这些负额杏仁核连接的潜在保护性关联在暴露于较高 ELS 的青少年中最为明显。我们的研究结果为 ELS 加速额杏仁核连接成熟的表述提供了支持,并提供了新的证据表明这种神经回路可以防止加速生物老化,特别是对于经历过更高 ELS 的青少年。虽然负额杏仁核连通性可能是对 ELS 的一种适应,但额杏仁核连通性、细胞老化和青春期节奏似乎不是同一发育过程的衡量标准。我们的研究结果为 ELS 加速额杏仁核连接成熟的表述提供了支持,并提供了新的证据表明这种神经回路可以防止加速生物老化,特别是对于经历过更高 ELS 的青少年。虽然负额杏仁核连通性可能是对 ELS 的一种适应,但额杏仁核连通性、细胞老化和青春期节奏似乎不是同一发育过程的衡量标准。我们的研究结果为 ELS 加速额杏仁核连接成熟的表述提供了支持,并提供了新的证据表明这种神经回路可以防止加速生物老化,特别是对于经历过更高 ELS 的青少年。虽然负额杏仁核连通性可能是对 ELS 的一种适应,但额杏仁核连通性、细胞老化和青春期节奏似乎不是同一发育过程的衡量标准。
更新日期:2020-03-27
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