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相关概念视频

Cognitive Development During Adulthood01:30

Cognitive Development During Adulthood

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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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相关实验视频

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大脑扩展和封闭形式的谷氨酸水平随着年龄的增长而降低,而扩展的谷氨酸与视觉空间记忆有关.

Xin Hu1, Keyu Pan2, Min Zhao1

  • 1Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China.

NeuroImage
|May 3, 2024
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概括
此摘要是机器生成的。

随着年龄的增长,大脑中的谷氨酸 (GSH) 水平会下降,特别是在后带状皮质 (PCC) 中. 这些变化会影响记忆,并因性别而异,为健康的大脑衰老提供了洞察力.

关键词:
大脑衰老的老化认知障碍 认知障碍是一种认知障碍.这是GSHGSH.视觉空间记忆 视觉空间记忆

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科学领域:

  • 神经科学是一个神经科学.
  • 生物化学 生化学
  • 衰老研究研究 衰老研究

背景情况:

  • 氧化应激 (OS) 在衰老过程中增加,导致认知能力下降.
  • 谷氨 (GSH) 是一种关键的大脑抗氧化剂,对于对抗OS至关重要.
  • 大脑GSH与年龄相关的变化及其认知关联仍然不清楚.

研究的目的:

  • 在特定的大脑区域研究大脑谷氨酸 (GSH) 的扩展和闭合形式的与年龄相关的变化.
  • 检查GSH水平,衰老,性别和认知功能之间的关系.
  • 为了阐明健康大脑衰老的神经化学基础.

主要方法:

  • 利用点分辨率光谱和编辑光谱序列.
  • 在276名健康参与者 (20-70岁) 中评估了扩展形式的GSH,在15名健康参与者 (26-56岁) 中评估了封闭形式的GSH.
  • 在前带皮质 (ACC),后带皮质 (PCC) 和皮质 (OC) 中测量了GSH水平.

主要成果:

  • 在PCC中,扩展形式的GSH水平随着年龄的增长而下降.
  • 在PCC和ACC中,在扩展形式GSH的时间变化中观察到性别差异.
  • 在PCC/OC和视觉空间记忆中的扩展形式GSH之间发现了积极的相关性.
  • 在PCC中注意到,随着年龄的增长,闭式GSH的下降趋势.

结论:

  • 大脑GSH水平,无论是扩展形式还是封闭形式,在正常衰老过程中都会发生变化.
  • 这些变化与性和认知功能 (如记忆) 有关.
  • 这些发现为了解健康大脑衰老神经化学提供了基础知识.