肥胖,死亡率和疾病风险:生物阻抗分析和磁共振成像的见解
Quan Gan1, Heinz Freisling1, Laia Peruchet-Noray1
1International Agency for Research On Cancer (IARC-WHO), 69366, Lyon CEDEX 07, France.
BMC medicine
|October 11, 2025
概括
像MRI这样的先进成像技术可能比基本测量更好地了解肥胖相关的疾病风险. 磁共振成像 (MRI) 衍生器官形态测量在预测2型糖尿病和与肥胖有关的癌症方面表现有前途.
科学领域:
- 医疗成像医学成像
- 生物标志物 生物标志物
- 公共卫生 公共卫生
背景情况:
- 脂肪的基本人体测量 (BA) 指标可能无法完全捕捉疾病风险.
- 从生物阻抗分析 (BIA) 或磁共振成像 (MRI) 进行先进测量的实用性是有争议的.
研究的目的:
- 评估BIA和MRI的先进人体测量是否可以改善与BA指标相比,对各种健康结果的风险预测.
- 评估不同肥胖度衡量各种原因死亡率,心血管疾病 (CVD),与肥胖相关的癌症,整体癌症和2型糖尿病 (T2D) 的歧视性性能.
主要方法:
- 利用了从40338名英国生物库参与者获得的BA,BIA和腹部MRI测量的数据.
- 采用了根据已确定的风险因素调整的Cox模型,以研究肥胖指标与健康结果之间的关联.
- 使用逐步方法选择了相关的人类指标,并通过交叉验证的C指数评估了模型歧视.
主要成果:
- 通过MRI获得的器官形态测量适度改善了T2D和与肥胖有关的癌症的风险歧视.
- 与BA单独相比,总体癌症和全因死亡率的歧视有所改善,但不具有统计学意义.
- 包括BIA指标在内通常不会增强歧视权.
结论:
- 来自MRI的器官形态学指标可以提供比BA指标之外的额外信息来评估脂肪.
- 这些先进的MRI测量显示出评估某些健康相关结果的风险的潜力,特别是T2D和与肥胖有关的癌症.
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