两种光谱装置可以近似的水果和蔬菜摄入量在一个种族和民族多样化的样本

IF 3.2 Q2 NUTRITION & DIETETICS

Current Developments in Nutrition Pub Date : 2025-06-04 DOI:10.1016/j.cdnut.2025.107482

Stephanie B Jilcott Pitts , Qiang Wu , Melissa N Laska , Nancy E Moran

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引用次数: 0

摘要

评估水果和蔬菜的摄入量对于确定营养干预研究的有效性非常重要。在同一研究参与者中，很少有水果和蔬菜摄入量的客观指标被直接比较。本研究旨在比较两种不同皮肤分光光度仪作为血浆类胡萝卜素浓度、自我报告的水果和蔬菜摄入量（FVI）和类胡萝卜素摄入量生物标志物的相对有效性，以检验这两种设备是否可以用于近似FVI。方法采用先前2项研究的人类皮肤类胡萝卜素评分（SCS， Veggie meter评估）和颜色空间测量数据。使用柯尼卡美能达CM 700D分光光度计测量受试者的肤色空间参数（明度、红度和黄度）。使用食物频率问卷对自我报告的饮食进行评估。我们分析了之前两项研究的数据，以检验皮肤亮度、红度和黄度参数与SCS、血浆类胡萝卜素、FVI和类胡萝卜素摄入量的相关性。结果皮肤亮度和发红度与皮肤类胡萝卜素（r = -0.15 ~ 0.14）、血浆类胡萝卜素（r = -0.19 ~ 0.21）、水果蔬菜（FV）和类胡萝卜素摄入量（r = -0.14 ~ 0.13）呈弱相关。相反，皮肤黄度具有统计学意义(P <；0.05/63)与SCS的相关性r = 0.60 ~ r = 0.67。皮肤黄度与血浆中总类胡萝卜素（r = 0.46-0.57）、血浆中α-胡萝卜素（r = 0.38-0.54）、β-胡萝卜素（r = 0.50-0.57）、α-和β-隐黄质（r = 0.38-0.43）、叶黄素和玉米黄质（r = 0.30-0.48）的相关性均具有统计学意义(P <；0.00079)，但皮肤黄度与血浆番茄红素的相关性无统计学意义（r = 0.06-0.17）。研究1中皮肤黄度与FVI呈正相关（r = 0.27），皮肤黄度变化与SCS变化（r = 0.51）、血浆总类胡萝卜素变化（r = 0.45）、血浆α-胡萝卜素变化（r = 0.51）、血浆β-胡萝卜素变化（r = 0.45）呈正相关（r = 0.45）。结论两种仪器均可用于FVI近似。需要更多的研究来了解这种设备不能很好地检测血浆番茄红素的原因。本研究已在clinicaltrials.gov注册为NCT04056624 （https://clinicaltrials.gov/c t2/show/NCT04056624）。

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Two Spectroscopy Devices Can Approximate Fruit and Vegetable Intake in a Racially and Ethnically Diverse Sample

Background

Assessing fruit and vegetable intake is important to determine the effectiveness of nutrition intervention studies. Few objective measures of fruit and vegetable intake have been directly compared within the same study participants.

Objectives

This study aims to compare the relative validity of 2 different skin spectrophotometry devices to serve as biomarkers of plasma carotenoid concentrations, self-reported fruit and vegetable intake (FVI), and carotenoid intake, to examine if both devices can be used to approximate FVI.

Methods

Human skin carotenoid scores (SCS, Veggie Meter-assessed) and color space measurement data from 2 prior studies were used. Participants’ skin color space parameters (lightness, redness, and yellowness) were measured using the Konica Minolta CM 700D spectrophotometer. Self-reported diet was assessed using food frequency questionnaires. We analyzed data from the 2 prior studies to examine correlations of skin lightness, redness, and yellowness parameters with SCS, plasma carotenoids, and FVI and carotenoid intake.

Results

Skin lightness and redness demonstrated weak correlations with skin carotenoids (r = –0.15 to 0.14), plasma carotenoids (r = –0.19 to 0.21), and fruit and vegetable (FV) and carotenoid intake (r = –0.14 to 0.13). Conversely, skin yellowness demonstrated statistically significant (P < 0.05/63) correlations with SCS ranging from r = 0.60 to r = 0.67. The correlations between skin yellowness and total plasma carotenoids (r = 0.46–0.57), plasma α-carotene (r = 0.38–0.54), β-carotene (r = 0.50–0.57), α- and β-cryptoxanthin (r = 0.38–0.43), and lutein and zeaxanthin (r = 0.30–0.48) were all statistically significant (P < 0.00079), but the correlation between skin yellowness and plasma lycopene was not statistically significant (r = 0.06–0.17). There were positive, statistically significant correlations between skin yellowness and FVI in study 1 (r = 0.27), as well as positive, statistically significant correlations between changes in skin yellowness with changes in SCS (r = 0.51), changes in total plasma carotenoids (r = 0.45), and changes in plasma α-carotene (r = 0.51) and β-carotene (r = 0.45).