背景饮食和坚持营养试验的忽视的影响
Javier I Ottaviani1, Hagen Schroeter1, Dennis M Bier2
1Mars, Inc., McLean, VA, USA.
Food & function
|June 26, 2025
概括
随机对照试验 (RCT) 中的营养生物标志物分析揭示了参与者的显著坚持和背景饮食影响. 将这些因素纳入营养研究中提供了更准确的心血管和死亡率结局估计.
科学领域:
- 营养流行病学 营养流行病学
- 临床试验设计 临床试验设计
- 生物标志物的验证
背景情况:
- 随机对照营养试验 (RCTN) 受到背景饮食变化和参与者坚持问题的挑战.
- 量化这些因素对RCTN结果的影响是困难的,但营养生物标志物提供了一个潜在的解决方案.
- 黄醇及其验证的生物标志物作为模型,在现实研究中调查这些挑战.
研究的目的:
- 调查背景饮食和坚持对使用黄生物标志物的营养干预结果的影响.
- 为了在估计干预效应时比较治疗意图,每条协议和基于生物标志物的分析.
- 强调考虑背景饮食和遵守可靠的RCTN结果评估的重要性.
主要方法:
- 来自可可补充剂和多维生素结局研究 (COSMOS) 的子队列的分析.
- 利用验证的黄生物标志物来评估背景摄入量和干预的坚持.
- 对心血管疾病 (CVD) 和死亡终点进行意向治疗,每条协议和基于生物标志物的分析进行了比较.
主要成果:
- 很大一部分参与者有较高的黄基底摄入量 (20%) 或较低的坚持 (33%基于生物标志物,而15%是通过问卷).
- 基于生物标志物的分析为所有终点提供了较大的效果大小,而不是治疗意图和每条协议的分析.
- 例如,基于生物标志物的分析显示,总心血管疾病事件的危险比率 (HR) 为0.65 (0.47;0.89),而治疗意图的危险比率为0.83 (0.65;1.07).
结论:
- 背景饮食和坚持显著影响RCTN结果,通常被传统方法低估.
- 基于营养生物标志物的分析提供了对干预效应的更可靠和更敏感的估计.
- 整合生物标志物数据对于在临床试验中准确评估营养干预措施至关重要.
更多相关视频
04:53A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
Published on: September 20, 2019
10.8K
06:13Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health
Published on: December 1, 2023
1.3K
相关概念视频
Study Designs in Epidemiology
431
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
431
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
182
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
182
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
430
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
430
Chronic Kidney Disease III: Interprofessional Care
82
Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
82
What is an Experiment?
14.8K
An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
14.8K
Clinical Trials
8.7K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
8.7K
