饮食中的异黄素含量定义了对西方饮食的代谢和分子反应
Michaela E Trautman1,2,3, Cara L Green1,2, Michael R MacArthur4
1Department of Medicine, University of Wisconsin-Madison, Madison, WI 53705 USA.
bioRxiv : the preprint server for biology
|June 19, 2024
概括
减少饮食中的异黄素有益于各种性别和菌株的小鼠的代谢健康,尽管分子反应各异. 降低异黄素摄入量可能会防止西方饮食引起的代谢问题.
科学领域:
- 代谢健康 代谢健康
- 营养科学 营养科学
- 肥胖问题研究研究
背景情况:
- 饮食中的氨基酸组成极大地影响了代谢健康.
- 分支链氨基酸isoleucine的摄入与人体质量指数相关.
- 减少饮食中的异黄素可以改善肥胖小鼠的代谢健康.
研究的目的:
- 调查性别,应变和异黄素摄入量对西方饮食 (WD) 反应的相互作用.
- 确定减少的饮食异黄素是否能提供对WD诱导的代谢功能障碍的保护.
- 探索特定于性别和菌株的分子适应在饮食中异黄素操纵.
主要方法:
- 在C57BL/6J和DBA/2J小鼠中使用了多组学方法 (基因组学,代谢学,脂组学).
- 给西方饮食中的小鼠提供不同水平的异黄素饮食.
- 分析了肝脏基因表达,代谢物和脂质配置文件.
- 血FGF21水平与小鼠和人类饮食中的异黄素相关.
- 在不同饮食习惯的人群中评估了饮食中的异黄素消耗.
主要成果:
- 饮食中减少的异黄素保护了两种性别和菌株的小鼠免受WD的负面代谢影响.
- 增加饮食中的异黄素会损害代谢健康方面.
- 尽管有整体的代谢益处,但观察到明显的性别和菌株特异性的分子反应.
- 识别了对异黄素的核心分子反应,独立于性别和菌株.
- 在小鼠或人类中,没有发现降低异黄素的代谢作用与FGF21之间的联系.
- 在健康饮食习惯的人群中,饮食中的异黄素摄入量较低.
结论:
- 饮食中的异黄素水平是对西方饮食的代谢和分子反应的关键因素.
- 降低饮食中的异黄素代表了减轻WD不良代谢后果的潜在策略.
- 降低异黄素的代谢益处在性别和菌株之间保持,但分子适应是独一无二的.
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