Plasma Metabolites Associated with a Protein-Rich Dietary Pattern: Results from the OmniHeart Trial.

Plasma Metabolites Associated with a Protein-Rich Dietary Pattern: Results from the OmniHeart Trial.
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DOI:
10.1002/mnfr.202100890
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发表时间:
2022-03
影响因子:
5.2
通讯作者:
Rebholz CM
Rebholz CM
中科院分区:
农林科学2区
文献类型:
--
作者:
Kim H;Lichtenstein AH;White K;Wong KE;Miller ER 3rd;Coresh J;Appel LJ;Rebholz CM

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缺乏生物标志物是准确评估蛋白质摄入量和解释观察性研究数据的挑战。该研究旨在确定富含蛋白质的饮食模式的生物标志物。预防心脏病的最佳宏量营养素摄入试验(OmniHeart)试验是一项随机交叉喂养研究,测试了三种不同宏量营养素含量的饮食模式(富含碳水化合物;富含蛋白质,约一半来自植物来源;和富含不饱和脂肪)。在156名成人中,使用配对t检验检查了富含蛋白质和碳水化合物饮食期结束时对数转换血浆代谢物水平的差异。偏最小二乘判别分析用于识别一组代谢物,这些代谢物对区分富含蛋白质与富含碳水化合物的饮食模式有影响。在839种已知代谢物中,经过Bonferroni校正后,102种代谢物在富含蛋白质和富含碳水化合物的饮食模式之间存在显着差异,其中大多数是脂质(n = 35)、氨基酸(n = 27)和外源性物质(n = 24)。在区分富含蛋白质和富含碳水化合物的饮食模式方面最有影响力的代谢物代表植物蛋白质摄入量,食物或饮料摄入量和制备方法。该研究确定了许多与富含蛋白质的饮食模式相关的血浆代谢物。如果重复,这些代谢物可用于评估对类似饮食模式的坚持程度。缺乏生物标志物是准确评估蛋白质摄入量的挑战。本研究旨在确定富含蛋白质饮食模式相对于富含碳水化合物饮食模式的生物标志物。研究发现,代表富含蛋白质饮食模式的代谢物包括植物蛋白摄入量、食物或饮料摄入量以及制备方法的生物标志物。
Lack of biomarkers is a challenge for the accurate assessment of protein intake and interpretation of observational study data. The study aims to identify biomarkers of a protein‐rich dietary pattern. The Optimal Macronutrient Intake Trial to Prevent Heart Disease (OmniHeart) trial is a randomized cross‐over feeding study which tested three dietary patterns with varied macronutrient content (carbohydrate‐rich; protein‐rich with about half from plant sources; and unsaturated fat‐rich). In 156 adults, differences in log‐transformed plasma metabolite levels at the end of the protein‐ and carbohydrate‐rich diet periods using paired t‐tests is examined. Partial least‐squares discriminant analysis is used to identify a set of metabolites which are influential in discriminating between the protein‐rich versus carbohydrate‐rich dietary patterns. Of 839 known metabolites, 102 metabolites differ significantly between the protein‐rich and the carbohydrate‐rich dietary patterns after Bonferroni correction, the majority of which are lipids (n = 35), amino acids (n = 27), and xenobiotics (n = 24). Metabolites which are the most influential in discriminating between the protein‐rich and the carbohydrate‐rich dietary patterns represent plant protein intake, food or beverage intake, and preparation methods. The study identifies many plasma metabolites associated with the protein‐rich dietary pattern. If replicated, these metabolites may be used to assess level of adherence to a similar dietary pattern. Lack of biomarkers is a challenge for the accurate assessment of protein intake. The present study aims to identify biomarkers of a protein‐rich dietary pattern relative to a carbohydrate‐rich dietary pattern. The study finds that metabolites which represent the protein‐rich dietary pattern include biomarkers of plant protein intake, food or beverage intake, and preparation methods.
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发表时间: 2019-10-01
影响因子: 7.1
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期刊: ANTI-INFLAMMATORY NUTRACEUTICALS AND CHRONIC DISEASES
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作者:
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