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Daanje M, Siebelink E, Vrieling F, van den Belt M, van der Haar S, Gerdessen JC, Kersten S, Esser D, Afman LA. Are postprandial glucose responses sufficiently person-specific to use in personalized dietary advice? Design of the RepEAT study: a fully controlled dietary intervention to determine the variation in glucose responses. Front Nutr 2023; 10:1281978. [PMID: 38152465 PMCID: PMC10751339 DOI: 10.3389/fnut.2023.1281978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/27/2023] [Indexed: 12/29/2023] Open
Abstract
Introduction An elevated postprandial glucose response is associated with an increased risk of cardiometabolic diseases. Existing research suggests large heterogeneity in the postprandial glucose responses to identical meals and food products between individuals, but the effect of other consumed meals during the day and the order of meals during the day on the heterogeneity in postprandial glucose responses still needs to be investigated. In addition, the robustness of the glucose responses to meals or foods is still unknown. Objectives The overall aim of the project is to assess whether the glucose response to a meal is sufficiently person-specific to use in personalized dietary advice. We aim to answer the question: "How replicable are glucose responses to meals within individuals and how consistent is the variation in glucose responses between individuals?" Methods The question will be assessed under standardized conditions of a 9-week fully controlled dietary intervention in which all meals are the same between individuals and consumed in a fixed order at a fixed time. 63 apparently healthy men and women with a BMI of 25-40 kg/m2 and aged 45-75 years were enrolled in the RepEAT study (NCT05456815), of whom 53 participants completed the study. The RepEAT study comprised a fully controlled dietary intervention of nine weeks, consisting of three repetitive periods of three weeks. Within each three-week period, a variety of meals and food products were offered during breakfast, lunch, dinner and in between meal snacks. Throughout the dietary intervention, glucose was continuously monitored using Freestyle Libre Pro IQ monitors. Physical activity was monitored using the ActiGraph and ActivPAL. To measure the association between glucose responses and an individual's phenotype, various measurements were performed before the start of the dietary intervention including an oral glucose tolerance test, a high-fat mixed meal challenge, assessment of body fat distribution including liver fat (MRI/MRS), and cardiometabolic markers. Discussion The repetitive and fully controlled nature of the dietary study allows detailed assessment of the replicability of the glucose responses to meals and food products within individuals. Furthermore, the consistency of the variation between individuals independent of insulin resistance will be determined.
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Affiliation(s)
- Monique Daanje
- Division of Human Nutrition, Wageningen University & Research, Wageningen, Netherlands
| | - Els Siebelink
- Division of Human Nutrition, Wageningen University & Research, Wageningen, Netherlands
| | - Frank Vrieling
- Division of Human Nutrition, Wageningen University & Research, Wageningen, Netherlands
| | - Maartje van den Belt
- Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Sandra van der Haar
- Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Johanna C. Gerdessen
- Department of Social Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Sander Kersten
- Division of Human Nutrition, Wageningen University & Research, Wageningen, Netherlands
| | - Diederik Esser
- Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Lydia A. Afman
- Division of Human Nutrition, Wageningen University & Research, Wageningen, Netherlands
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Schutte S, Esser D, Siebelink E, Michielsen CJR, Daanje M, Matualatupauw JC, Boshuizen HC, Mensink M, Afman LA, Esser D, Siebelink E, Fick H, Grootte Bromhaar MM, Wang Y, de Bruijn SEM, Mars M, Meijerink J, Mensink M, Afman LA, Feskens EJM, Müller M. Diverging metabolic effects of 2 energy-restricted diets differing in nutrient quality: a 12-week randomized controlled trial in subjects with abdominal obesity. Am J Clin Nutr 2022; 116:132-150. [PMID: 35102369 PMCID: PMC9257474 DOI: 10.1093/ajcn/nqac025] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 01/24/2022] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Despite the established relation between energy restriction (ER) and metabolic health, the most beneficial nutrient composition of a weight-loss diet is still a subject of debate. OBJECTIVES The aim of the study was to examine the additional effects of nutrient quality on top of ER. METHODS A parallel-designed, 12-week 25% ER dietary intervention study was conducted (clinicaltrials.gov: NCT02194504). Participants aged 40-70 years with abdominal obesity were randomized over 3 groups: a 25% ER high-nutrient-quality diet (n = 40); a 25% ER low-nutrient-quality diet (n = 40); or a habitual diet (n = 30). Both ER diets were nutritionally adequate, and the high-nutrient-quality ER diet was enriched in MUFAs, n-3 PUFAs, fiber, and plant protein and reduced in fructose. Before and after the intervention, intrahepatic lipids, body fat distribution, fasting and postprandial responses to a mixed-meal shake challenge test of cardiometabolic risk factors, lipoproteins, vascular measurements, and adipose tissue transcriptome were assessed. RESULTS The high-nutrient-quality ER diet (-8.4 ± 3.2) induced 2.1 kg more weight loss (P = 0.007) than the low-nutrient-quality ER diet (-6.3 ± 3.9), reduced fasting serum total cholesterol (P = 0.014) and plasma triglycerides (P < 0.001), promoted an antiatherogenic lipoprotein profile, and induced a more pronounced decrease in adipose tissue gene expression of energy metabolism pathways than the low-quality ER diet. Explorative analyses showed that the difference in weight loss between the two ER diets was specifically present in insulin-sensitive subjects (HOMA-IR ≤ 2.5), in whom the high-nutrient-quality diet induced 3.9 kg more weight loss than the low-nutrient-quality diet. CONCLUSIONS A high-nutrient-quality 25% ER diet is more beneficial for cardiometabolic health than a low-nutrient-quality 25% ER diet. Overweight, insulin-sensitive subjects may benefit more from a high- than a low-nutrient-quality ER diet with respect to weight loss, due to potential attenuation of glucose-induced lipid synthesis in adipose tissue.
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Affiliation(s)
- Sophie Schutte
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Diederik Esser
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Els Siebelink
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Charlotte J R Michielsen
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Monique Daanje
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Juri C Matualatupauw
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Hendriek C Boshuizen
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Marco Mensink
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | | | - The Wageningen Belly Fat Study team
SchutteSophiePhDDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsEsserDiederikPhDDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsSiebelinkElsBScSenior Research DieticianDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsFickHenriëtteBScCoordinator Human ResearchDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsGrootte BromhaarMechteld MBScLaboratory Technician Human ResearchDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsWangYaPhDDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlandsde BruijnSuzanne E MPhDDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsMarsMonicaPhDAssociate ProfessorDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsMeijerinkJocelijnPhDAssistant ProfessorDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlandshttps://orcid.org/0000-0002-9725-5709MensinkMarcoPhD, MDAssistant ProfessorDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlandshttps://orcid.org/0000-0002-7939-6217AfmanLydia APhDAssociate ProfessorDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsFeskensEdith J MPhDProfessorDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The NetherlandsMüllerMichaelPhDDirector of the Food and Metabolic Health Alliance & Professor at the University of East Anglia, Former Professor at Wageningen UniversityDivision of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health, Wageningen, The Netherlands
| | - Diederik Esser
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Els Siebelink
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Henriëtte Fick
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Mechteld M Grootte Bromhaar
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Ya Wang
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Suzanne E M de Bruijn
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Monica Mars
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Jocelijn Meijerink
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Marco Mensink
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Lydia A Afman
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Edith J M Feskens
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
| | - Michael Müller
- Division of Human Nutrition and Health, Wageningen University, Division of Human Nutrition and Health , Wageningen, The Netherlands
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Satitsuksanoa P, Daanje M, Akdis M, Boyd SD, Veen W. Biology and dynamics of B cells in the context of IgE-mediated food allergy. Allergy 2021; 76:1707-1717. [PMID: 33274454 DOI: 10.1111/all.14684] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 11/09/2020] [Accepted: 11/28/2020] [Indexed: 12/16/2022]
Abstract
An increasing number of people suffer from IgE-mediated food allergies. The immunological mechanisms that cause IgE-mediated food allergy have been extensively studied. B cells play a key role in the development of IgE-mediated food allergies through the production of allergen-specific antibodies. While this particular function of B cells has been known for many years, we still do not fully understand the mechanisms that regulate the induction and maintenance of allergen-specific IgE production. It is still not fully understood where in the body IgE class switch recombination of food allergen-specific B cells occurs, and what processes are involved in the immunological memory of allergen-specific IgE responses. B cells can also contribute to the regulation of allergen-specific immune responses through other mechanisms such as antigen presentation and cytokine production. Recent technological advances have enabled highly detailed analysis of small subsets of B cells down to the single-cell level. In this review, we provide an overview of the current knowledge on the biology of B cells in relation to IgE-mediated food allergies.
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Affiliation(s)
| | - Monique Daanje
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
| | - Scott D. Boyd
- Sean N. Parker Center for Allergy and Asthma Research Stanford University School of Medicine Stanford CA USA
- Department of Pathology Stanford University School of Medicine Stanford CA USA
| | - Willem Veen
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
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