儿童早期的大脑微观结构和肥胖风险:来自限制光谱成像的见解
Mohammadreza Bayat1, Bianca Braun2, Madeline Curzon1
1Department of Psychology, Florida International University, Miami, Florida, United States.
bioRxiv : the preprint server for biology
|September 26, 2025
概括
儿童肥胖与奖励回路的早期大脑变化有关. 在幼儿中,较高的身体质量指数 (BMI) 与大脑微观结构的改变有关,无论ADHD的诊断如何.
科学领域:
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
- 儿科健康 儿科健康
背景情况:
- 儿童肥胖是一个重要的公共卫生问题.
- 导致儿童早期肥胖风险的神经生物学因素尚未得到充分了解.
- 早期识别与肥胖有关的神经变化对于干预至关重要.
研究的目的:
- 为了研究早期儿童脂肪和大脑微观结构之间的关联.
- 使用限制光谱成像 (RSI) 探索肥胖风险的潜在神经生物学标志物.
- 检查ADHD诊断是否影响脂肪和大脑结构之间的关系.
主要方法:
- 对159名儿童 (4-7岁) 的横截面研究,包括典型发育 (TD) 和ADHD组.
- 使用限制光谱成像 (RSI) 来测量大脑微观结构 (RNI,RND,RNT).
- 使用身体质量指数 (BMI),体脂百分比和腰围来评估脂肪.
主要成果:
- 较高的BMI显着与右侧胰岛,腹核 (NAcc) 和门的RNI增加有关.
- 较高的BMI也与右侧insula和pallidum的RNT增加相关.
- 诊断ADHD并没有缓解这些关联,这表明共享的神经通路.
结论:
- 儿童早期的脂肪与奖励相关电路中的微观结构性大脑变化有关.
- 体重指数 (BMI) 似乎是一个敏感的标记,用于检测幼儿中与肥胖有关的大脑差异.
- 作为一种用于识别儿科肥胖早期神经风险标志物的工具,RSI显示出前景.
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