认知储备类型和晚年抑郁症状的发展:基于人口的队列研究
Federico Triolo1, Giulia Grande2, Ingrid Ekström1
1Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden.
概括
认知储备 (CR) 保护大脑免受损伤,并可能影响抑郁症. 通过大脑完整性或生活经验测量较高的CR与老年人患抑郁症状的风险降低有关.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 精神病学是一个精神病学.
背景情况:
- 认知储备 (CR) 解释了大脑损伤如何影响痴呆发病和潜在的抑郁症状的个体差异.
- 本研究研究了两种CR操作化:基于残留和基于活动的方法,与老年人抑郁症状的发展有关.
研究的目的:
- 检查基于残留和基于活动的认知储备措施与抑郁症状发生率之间的关联.
- 在15年的随访期内,在基于人口的老年人队列中探索这些关联.
主要方法:
- 在402名没有痴呆症和抑郁症的成年人 (60岁以上) 的纵向分析中,来自瑞典国家关于Kungsholmen衰老和护理研究 (SNAC-K).
- 从情节性记忆和大脑完整性 (MRI标志物) 来得出的基于残留的CR. 基于活动的CR通过教育,工作复杂性,社交网络和休活动进行评估.
- 考克斯危险模型用于分析CR三角形和抑郁症状发生率之间的关联,调整共变量. 在更大的样本中重复基于活动的CR分析 (N=2709).
主要成果:
- 较高的残留CR与显著较低的抑郁症状发作的风险相关 (HR:0.43).
- 基于活动的CR在MRI亚样本中与抑郁症状没有显著的关联,但在全样本中显示出显著的关联 (HR:0.52).
- 基于活动的CR也与完整样本中的抑郁症诊断有显著的关联 (HR:0.45).
结论:
- 认知储备,无论测量方法如何,似乎都会影响晚年抑郁症的症状.
- 旨在增强认知储备的举措可能对老年人群的认知和心理健康都有好处.
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