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Abdisa KB, Szerdahelyi E, Molnár MA, Friedrich L, Lakner Z, Koris A, Toth A, Nath A. Metabolic Syndrome and Biotherapeutic Activity of Dairy (Cow and Buffalo) Milk Proteins and Peptides: Fast Food-Induced Obesity Perspective-A Narrative Review. Biomolecules 2024; 14:478. [PMID: 38672494 PMCID: PMC11048494 DOI: 10.3390/biom14040478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/30/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Metabolic syndrome (MS) is defined by the outcome of interconnected metabolic factors that directly increase the prevalence of obesity and other metabolic diseases. Currently, obesity is considered one of the most relevant topics of discussion because an epidemic heave of the incidence of obesity in both developing and underdeveloped countries has been reached. According to the World Obesity Atlas 2023 report, 38% of the world population are presently either obese or overweight. One of the causes of obesity is an imbalance of energy intake and energy expenditure, where nutritional imbalance due to consumption of high-calorie fast foods play a pivotal role. The dynamic interactions among different risk factors of obesity are highly complex; however, the underpinnings of hyperglycemia and dyslipidemia for obesity incidence are recognized. Fast foods, primarily composed of soluble carbohydrates, non-nutritive artificial sweeteners, saturated fats, and complexes of macronutrients (protein-carbohydrate, starch-lipid, starch-lipid-protein) provide high metabolic calories. Several experimental studies have pointed out that dairy proteins and peptides may modulate the activities of risk factors of obesity. To justify the results precisely, peptides from dairy milk proteins were synthesized under in vitro conditions and their contributions to biomarkers of obesity were assessed. Comprehensive information about the impact of proteins and peptides from dairy milks on fast food-induced obesity is presented in this narrative review article.
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Affiliation(s)
- Kenbon Beyene Abdisa
- Department of Food Process Engineering, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 44, HU-1118 Budapest, Hungary; (K.B.A.)
| | - Emőke Szerdahelyi
- Department of Nutrition, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Somlói út 14-16, HU-1118 Budapest, Hungary;
| | - Máté András Molnár
- Department of Food Process Engineering, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 44, HU-1118 Budapest, Hungary; (K.B.A.)
| | - László Friedrich
- Department of Refrigeration and Livestock Product Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 43-45, HU-1118 Budapest, Hungary
| | - Zoltán Lakner
- Department of Agricultural Business and Economics, Institute of Agricultural and Food Economics, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, HU-1118 Budapest, Hungary
| | - András Koris
- Department of Food Process Engineering, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 44, HU-1118 Budapest, Hungary; (K.B.A.)
| | - Attila Toth
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zsigmond út 22, HU-4032 Debrecen, Hungary
| | - Arijit Nath
- Department of Food Process Engineering, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 44, HU-1118 Budapest, Hungary; (K.B.A.)
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Elbira A, Hafiz M, Hernández-Álvarez AJ, Zulyniak MA, Boesch C. Protein Hydrolysates and Bioactive Peptides as Mediators of Blood Glucose-A Systematic Review and Meta-Analysis of Acute and Long-Term Studies. Nutrients 2024; 16:323. [PMID: 38276562 PMCID: PMC10818427 DOI: 10.3390/nu16020323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a major public health concern associated with high mortality and reduced life expectancy. Since diabetes is closely linked with lifestyle, not surprisingly, nutritional intervention and increased physical activity could play a vital role in attenuating the problems related to diabetes. Protein hydrolysates (PHs) and their bioactive peptides (BP) have been shown to exert a wide range of biological effects, including antioxidative, antihypertensive, and in particular, hypoglycaemic activities. To better understand the efficacy of such interventions, a systematic review and meta-analysis of randomised controlled trials (RCTs) were performed concerning the influence of protein hydrolysates on glycaemic biomarkers in subjects with and without hyperglycaemia. Five different databases were used to search for RCTs. In total, 37 RCTs were included in the systematic review and 29 RCTs in the meta-analysis. The meta-analysis revealed a significant reduction in postprandial blood glucose response (PPGR) in normoglycaemic (-0.22 mmol/L; 95% CI -0.43, -0.01; p ≤ 0.05) and in hyperglycaemic adults (-0.88 mmol/L; 95% CI -1.37, -0.39; p ≤ 0.001) compared with the respective control groups. A meta-regression analysis revealed a dose-dependent response for PPGR following PH consumption in normoglycaemic adults, specifically for doses ≤ 30 g. The postprandial blood insulin responses (PPIR) were significantly higher after the ingestion of PHs in both the group with and the group without hyperglycaemia, respectively (23.05 mIU/L; 95% CI 7.53, 38.57; p ≤ 0.01 and 12.57 mIU/L; 95% CI 2.72, 22.41; p ≤ 0.01), compared with controls. In terms of long-term responses, there was a small but significant reduction in both fasting blood glucose (FBG) and fasting glycated haemoglobin (HbA1c) in response to PH compared with the control group (p < 0.05). The PHs significantly improved the parameters of glycaemia in adults and, hence, it may contribute to the management and regulation of the future risk of developing T2DM.
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Affiliation(s)
- Arig Elbira
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (A.E.); (M.H.); (A.J.H.-Á.); (M.A.Z.)
| | - Maryam Hafiz
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (A.E.); (M.H.); (A.J.H.-Á.); (M.A.Z.)
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdul-Aziz University, P.O. Box 80215, Jeddah 21589, Saudi Arabia
| | - Alan Javier Hernández-Álvarez
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (A.E.); (M.H.); (A.J.H.-Á.); (M.A.Z.)
| | - Michael A. Zulyniak
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (A.E.); (M.H.); (A.J.H.-Á.); (M.A.Z.)
| | - Christine Boesch
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (A.E.); (M.H.); (A.J.H.-Á.); (M.A.Z.)
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Yuliana ND, Hunaefi D, Goto M, Ishikawa YT, Verpoorte R. Measuring the health effects of food by metabolomics. Crit Rev Food Sci Nutr 2021; 62:6359-6373. [PMID: 33749380 DOI: 10.1080/10408398.2021.1901256] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Metabolomics of human biological fluids or tissues is used to discover markers for diseases by comparing the metabolome of the patients against healthy individuals. Ultimately, these markers can be used in drug discovery to determine how medications normalize (at least in part) the human metabolome at specific disease stages to homeostatic. Likewise, the health effects of food can be studied. Even metabolomics of the food can be combined with metabolomics of the treated patients to correlate compounds from food with measurable health effects from clinical studies. Various chemometric analyses of these metabolomics data are used to identify markers for diseases and to obtain evidence for health effects. This review discusses recent researches (published from 2013 to 2021) on whether specific dietary intervention to humans suffering from metabolic disorders may improve their pathological status. The scope is limited to those associated with major lifestyle diseases such as diabetes, obesity, and cardiovascular diseases, for which food is thought may have detrimental as well as beneficial effects on human health. It includes metabolites characterization of different biological samples such as the human serum/plasma, urine, saliva, feces, or ileal fluid. Whether the study results supported the claimed health benefits and whether the research was conducted with appropriate study design, was criticized.
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Affiliation(s)
- Nancy Dewi Yuliana
- Department of Food Science and Technology, IPB University, IPB Darmaga Campus, Bogor, Indonesia.,Halal Science Center IPB University, IPB Baranangsiang Campus, Bogor, Indonesia
| | - Dase Hunaefi
- Department of Food Science and Technology, IPB University, IPB Darmaga Campus, Bogor, Indonesia.,Halal Science Center IPB University, IPB Baranangsiang Campus, Bogor, Indonesia
| | - Masao Goto
- Functionality Evaluation Unit, Food Function Division, Food Research Institute, NARO, Tsukuba-Ibaraki, Japan
| | - Yuko Takano Ishikawa
- Functionality Evaluation Unit, Food Function Division, Food Research Institute, NARO, Tsukuba-Ibaraki, Japan
| | - Robert Verpoorte
- Natural Products Laboratory, Institute of Biology, Leiden University, Leiden, RA, The Netherlands
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Role of Fluid Milk in Attenuating Postprandial Hyperglycemia and Hypertriglyceridemia. Nutrients 2020; 12:nu12123806. [PMID: 33322540 PMCID: PMC7763034 DOI: 10.3390/nu12123806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022] Open
Abstract
Postprandial plasma glucose and triglyceride concentrations are predictive of relative cardiovascular disease (CVD) risk, and the pathogenesis of both insulin resistance and atherosclerosis has been attributed to acute states of hyperglycemia and hypertriglyceridemia. Postprandial lipemia and hyperglycemia suppress vascular reactivity and induce endothelial dysfunction. Epidemiological studies suggest that chronically-high consumption of milk and milk products is associated with a reduced risk of type 2 diabetes, metabolic syndrome, and CVD. The addition of dairy products to meals high in carbohydrates and fat may lessen these risks through reductions in postprandial glucose and triglyceride responses. Purported mechanisms include dairy proteins and bioactive compounds, which may explain the inverse relationship between dairy consumption and cardiometabolic diseases. The current review evaluates the available literature describing the relationships between metabolic dysfunction, postprandial metabolism, and vascular dysfunction and discusses the potential role of milk and dairy products in attenuating these impairments.
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Lee DPS, Low JHM, Chen JR, Zimmermann D, Actis-Goretta L, Kim JE. The Influence of Different Foods and Food Ingredients on Acute Postprandial Triglyceride Response: A Systematic Literature Review and Meta-Analysis of Randomized Controlled Trials. Adv Nutr 2020; 11:1529-1543. [PMID: 32609800 PMCID: PMC7666897 DOI: 10.1093/advances/nmaa074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/15/2020] [Accepted: 05/27/2020] [Indexed: 12/13/2022] Open
Abstract
The use of postprandial triglyceride (ppTG) as a cardiovascular disease risk indicator has gained recent popularity. However, the influence of different foods or food ingredients on the ppTG response has not been comprehensively characterized. A systematic literature review and meta-analysis was conducted to assess the effects of foods or food ingredients on the ppTG response. PubMed, MEDLINE, Cochrane, and CINAHL databases were searched for relevant acute (<24-h) randomized controlled trials published up to September 2018. Based on our selection criteria, 179 relevant trials (366 comparisons) were identified and systematically compiled into distinct food or food ingredient categories. A ppTG-lowering effect was noted for soluble fiber (Hedges' giAUC = -0.72; 95% CI: -1.33, -0.11), sodium bicarbonate mineral water (Hedges' gAUC = -0.42; 95% CI: -0.79, -0.04), diacylglycerol oil (Hedges' giAUC = -0.38; 95% CI: -0.75, -0.00), and whey protein when it was contrasted with other proteins. The fats group showed significant but opposite effects depending on the outcome measure used (Hedges' giAUC = -0.32; 95% CI: -0.61, -0.03; and Hedges' gAUC = 0.16; 95% CI: 0.06, 0.26). Data for other important food groups (nuts, vegetables, and polyphenols) were also assessed but of limited availability. Assessing for oral fat tolerance test (OFTT) recommendation compliance, most trials were ≥4 h long but lacked a sufficiently high fat challenge. iAUC and AUC were more common measures of ppTG. Overall, our analyses indicate that the effects on ppTG by different food groups are diverse, largely influenced by the type of food or food ingredient within the same group. The type of ppTG measurement can also influence the response.
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Affiliation(s)
- Delia Pei Shan Lee
- Department of Food Science and Technology, National University of Singapore, Singapore
| | - Jasmine Hui Min Low
- Department of Food Science and Technology, National University of Singapore, Singapore
| | | | | | - Lucas Actis-Goretta
- Nestlé Research Singapore Hub, Singapore,Nestlé Research, Lausanne, Switzerland
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Bozzetto L, Della Pepa G, Vetrani C, Rivellese AA. Dietary Impact on Postprandial Lipemia. Front Endocrinol (Lausanne) 2020; 11:337. [PMID: 32733374 PMCID: PMC7358426 DOI: 10.3389/fendo.2020.00337] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/29/2020] [Indexed: 12/14/2022] Open
Abstract
Abnormalities in postprandial lipemia (PPL), particularly those related to triglyceride-rich lipoproteins, are considered an independent cardiovascular risk factor. As diet is known to be one of the main modulators of PPL, the aim of this review was to summarize and discuss current knowledge on the impact of diet and its components on PPL in humans; specifically, the impact of weight loss, different nutrients (quantity and quality of dietary fats, carbohydrates, and proteins), alcohol and other bioactive dietary components (i.e., polyphenols), as well as the effect of different dietary patterns. The possible mechanisms behind the metabolic effects of each dietary component were also discussed.
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Watson LE, Phillips LK, Wu T, Bound MJ, Checklin H, Grivell J, Jones KL, Horowitz M, Rayner CK. Title: Differentiating the effects of whey protein and guar gum preloads on postprandial glycemia in type 2 diabetes. Clin Nutr 2019; 38:2827-2832. [PMID: 30583967 DOI: 10.1016/j.clnu.2018.12.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 12/09/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Whey protein and guar gum have both been reported to reduce postprandial glycemia in health and type 2 diabetes, associated with stimulation of glucagon-like peptide-1 (GLP-1) and/or slowing of gastric emptying. Our aim was to evaluate, in type 2 diabetes, the acute effects of low dose "preloads" of whey and guar, given alone or in combination before a meal, on postprandial glycemia, insulin, GLP-1, and gastric emptying. METHODS 21 patients with type 2 diabetes, managed by diet or metformin alone, were each studied on 4 days. They received a preload "shake" 15min before a mashed potato meal (368.5 kcal) labeled with 13C-octanoic-acid. The preloads comprised either (i) 17 g whey (W), (ii) 5 g guar (G), (iii) 17 g whey + 5 g guar (WG) each sweetened with 60 mg sucralose, and (iv) 60 mg sucralose alone (control; C), all dissolved in 150 mL water. Venous blood was sampled frequently for measurements of glucose, insulin, and GLP-1 concentrations. Gastric half-emptying time (T50) was calculated from breath 13CO2 excretion over 240 min. RESULTS Postprandial blood glucose concentrations were lower with W and WG compared to C (each P < 0.0001, treatment × time interaction), and lower after G than C only at 30min. Insulin, GLP-1, and glucagon concentrations were higher after W than WG, G, or C (P < 0.05, treatment × time interaction), without differences between the latter three. Gastric emptying was slower with W (T50: 179.6 ± 6.1 min, P < 0.05) and WG (T50: 197.6 ± 9.7 min, P < 0.0001) when compared to C (T50: 162.9 ± 6.2 min), but did not differ between G (T50: 171.3 ± 7.0) and C (P > 0.99). CONCLUSION Both whey and whey/guar preloads reduced postprandial glycemia, associated with slowing of gastric emptying. Low dose guar was less effective as a preload for glucose-lowering and did not slow gastric emptying. CLINICAL TRIAL REGISTRY NUMBER AND WEBSITE Australian and New Zealand Clinical Trials Registry, Trial ID ACTRN12615001272583, http://www.anzctr.org.au.
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Affiliation(s)
- Linda E Watson
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Liza K Phillips
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Tongzhi Wu
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Michelle J Bound
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Helen Checklin
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Jacqueline Grivell
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Karen L Jones
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Michael Horowitz
- Adelaide Medical School, The University of Adelaide, Adelaide, Australia
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Hidayat K, Du X, Shi BM. Milk in the prevention and management of type 2 diabetes: The potential role of milk proteins. Diabetes Metab Res Rev 2019; 35:e3187. [PMID: 31111646 DOI: 10.1002/dmrr.3187] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 03/31/2019] [Accepted: 05/07/2019] [Indexed: 12/17/2022]
Abstract
Globally, diabetes mellitus is not only considered a leading cause of mortality and morbidities but has also created a substantial economic burden. There is growing evidence that foods and their components can be implemented in the prevention and management of type 2 diabetes mellitus (T2DM). Increased dairy consumption has been linked to a lower risk of T2DM. The protective role of dairy foods in the development of T2DM is thought to be largely attributable to dairy nutrients, one of them being dairy protein. There is considerable evidence that milk proteins increase the postprandial insulin response and lower the postprandial blood glucose response in both healthy subjects and patients with T2DM. The exact mechanisms by which milk proteins lower postprandial glucose levels are yet to established; however, the amino acids and bioactive peptides derived from milk proteins are thought to modify a physiological milieu, which includes delayed gastric emptying and the enhancement of incretin and insulin responses, consequently leading to lower postprandial glucose levels. The present review will focus on providing a clear presentation of the potential implementation of milk proteins as a dietary supplement in the prevention and management of T2DM by summarizing the relevant supporting evidence for this particular topic.
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Affiliation(s)
- Khemayanto Hidayat
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xuan Du
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bi-Min Shi
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou, China
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Desmarchelier C, Borel P, Lairon D, Maraninchi M, Valéro R. Effect of Nutrient and Micronutrient Intake on Chylomicron Production and Postprandial Lipemia. Nutrients 2019; 11:E1299. [PMID: 31181761 PMCID: PMC6627366 DOI: 10.3390/nu11061299] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 01/02/2023] Open
Abstract
Postprandial lipemia, which is one of the main characteristics of the atherogenic dyslipidemia with fasting plasma hypertriglyceridemia, low high-density lipoprotein cholesterol and an increase of small and dense low-density lipoproteins is now considered a causal risk factor for atherosclerotic cardiovascular disease and all-cause mortality. Postprandial lipemia, which is mainly related to the increase in chylomicron production, is frequently elevated in individuals at high cardiovascular risk such as obese or overweight patients, type 2 diabetic patients and subjects with a metabolic syndrome who share an insulin resistant state. It is now well known that chylomicron production and thus postprandial lipemia is highly regulated by many factors such as endogenous factors: circulating factors such as hormones or free fatty acids, genetic variants, circadian rhythms, or exogenous factors: food components, dietary supplements and prescription drugs. In this review, we focused on the effect of nutrients, micronutrients and phytochemicals but also on food structure on chylomicron production and postprandial lipemia.
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Affiliation(s)
- Charles Desmarchelier
- Faculty of Medicine, Aix-Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, C2VN (Center for Cardiovascular and Nutrition Research), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INSERM, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INRA, 27 Boulevard Jean Moulin, 13385 Marseille, France.
| | - Patrick Borel
- Faculty of Medicine, Aix-Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, C2VN (Center for Cardiovascular and Nutrition Research), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INSERM, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INRA, 27 Boulevard Jean Moulin, 13385 Marseille, France.
| | - Denis Lairon
- Faculty of Medicine, Aix-Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, C2VN (Center for Cardiovascular and Nutrition Research), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INSERM, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INRA, 27 Boulevard Jean Moulin, 13385 Marseille, France.
| | - Marie Maraninchi
- Faculty of Medicine, Aix-Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, C2VN (Center for Cardiovascular and Nutrition Research), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INSERM, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INRA, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- CHU Conception, APHM (Assistance Publique-Hôpitaux de Marseille), 147 Boulevard Baille, 13005 Marseille, France.
| | - René Valéro
- Faculty of Medicine, Aix-Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, C2VN (Center for Cardiovascular and Nutrition Research), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INSERM, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Faculty of Medicine, INRA, 27 Boulevard Jean Moulin, 13385 Marseille, France.
- CHU Conception, APHM (Assistance Publique-Hôpitaux de Marseille), 147 Boulevard Baille, 13005 Marseille, France.
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Watson LE, Phillips LK, Wu T, Bound MJ, Checklin HL, Grivell J, Jones KL, Clifton PM, Horowitz M, Rayner CK. A whey/guar "preload" improves postprandial glycaemia and glycated haemoglobin levels in type 2 diabetes: A 12-week, single-blind, randomized, placebo-controlled trial. Diabetes Obes Metab 2019; 21:930-938. [PMID: 30520216 DOI: 10.1111/dom.13604] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/20/2018] [Accepted: 12/01/2018] [Indexed: 02/05/2023]
Abstract
AIMS To evaluate the effects of 12 weeks of treatment with a whey/guar preload on gastric emptying, postprandial glycaemia and glycated haemoglobin (HbA1c) levels in people with type 2 diabetes (T2DM). MATERIALS AND METHODS A total of 79 people with T2DM, managed on diet or metformin (HbA1c 49 ± 0.7 mmol/mol [6.6 ± 0.1%]), were randomized, in single-blind fashion, to receive 150 mL flavoured preloads, containing either 17 g whey protein plus 5 g guar (n = 37) or flavoured placebo (n = 42), 15 minutes before two meals, each day for 12 weeks. Blood glucose and gastric emptying (breath test) were measured before and after a mashed potato meal at baseline (without preload), and after the preload at the beginning (week 1) and end (week 12) of treatment. HbA1c levels, energy intake, weight and body composition were also evaluated. RESULTS Gastric emptying was slower (P < 0.01) and postprandial blood glucose levels lower (P < 0.05) with the whey/guar preload compared to placebo preload, and the magnitude of reduction in glycaemia was related to the rate of gastric emptying at both week 1 (r = -0.54, P < 0.001) and week 12 (r = -0.54, P < 0.0001). At the end of treatment, there was a 1 mmol/mol [0.1%] reduction in HbA1c in the whey/guar group compared to the placebo group (49 ± 1.0 mmol/mol [6.6 ± 0.05%] vs. 50 ± 0.8 mmol/mol [6.7 ± 0.05%]; P < 0.05). There were no differences in energy intake, body weight, or lean or fat mass between the groups. CONCLUSIONS In patients with well-controlled T2DM, 12 weeks' treatment with a low-dose whey/guar preload, taken twice daily before meals, had sustained effects of slowing gastric emptying and reducing postprandial blood glucose, which were associated with a modest reduction in HbA1c, without causing weight gain.
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Affiliation(s)
- Linda E Watson
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Liza K Phillips
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Departments of Endocrinology and Gastroenterology, Royal Adelaide Hospital, Adelaide, Australia
| | - Tongzhi Wu
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Departments of Endocrinology and Gastroenterology, Royal Adelaide Hospital, Adelaide, Australia
| | - Michelle J Bound
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Helen L Checklin
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Jacqueline Grivell
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Karen L Jones
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Peter M Clifton
- Departments of Endocrinology and Gastroenterology, Royal Adelaide Hospital, Adelaide, Australia
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Michael Horowitz
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Departments of Endocrinology and Gastroenterology, Royal Adelaide Hospital, Adelaide, Australia
| | - Christopher K Rayner
- Discipline of Medicine, Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Departments of Endocrinology and Gastroenterology, Royal Adelaide Hospital, Adelaide, Australia
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Erikson K, Ala-Kokko TI, Koskenkari J, Liisanantti JH, Kamakura R, Herzig KH, Syrjälä H. Elevated serum S-100β in patients with septic shock is associated with delirium. Acta Anaesthesiol Scand 2019; 63:69-73. [PMID: 30079511 DOI: 10.1111/aas.13228] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 06/18/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND A high prevalence of delirium is observed in sepsis, yet specific markers for this brain dysfunction in sedated patients are still lacking. Cytoplasmic low molecular weight calcium-binding protein, S-100β, is a commonly used nonspecific marker for brain injury. Here, we evaluated whether delirium is associated with increases in S-100β levels. METHODS This observational study included 22 patients with septic shock. Delirium was assessed by CAM-ICU and blood samples were obtained to measure inflammatory (CRP, PCT, IL-6, IL-17, TNF-α) and cerebral biomarkers (S-100β, NSE, HAB42, SUBP). Patients were categorized according to the presence of delirium. RESULTS Delirium was present in 10/22 of the patients (45.5%). Serum S-100β levels were above the laboratory cutoff value of 0.15 μg/L in 13/22 (59.1%) of the patients. The odds ratio for risk of developing delirium in cases with an S-100β >0.15 μg/L was 18.0 (95%CI, 1.7-196.3, P = 0.011). Patients with delirium had higher plasma levels of IL-6 compared to those without; 138.3 pg/mL [28.0-296.7] vs 53.6 pg/mL [109.3-505, P = 0.050]. There was a positive correlation between S100 β and IL-6 levels (r = 0.489, P = 0.021). Delirium patients had higher SOFA scores; 10 [5-9] vs 7[8-10.5], P = 0.036. CONCLUSIONS Delirium in septic shock was associated with an elevated protein S-100β when using a laboratory cutoff value of 0.15 μg/L and with more severe organ dysfunction during the ICU stay.
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Affiliation(s)
- Kristo Erikson
- Department of Anesthesiology; Division of Intensive Care Medicine; Research Group of Surgery, Anesthesiology and Intensive Care Medicine; Oulu University Hospital; Medical Research Center Oulu; University of Oulu; Oulu Finland
| | - Tero Ilmari Ala-Kokko
- Department of Anesthesiology; Division of Intensive Care Medicine; Research Group of Surgery, Anesthesiology and Intensive Care Medicine; Oulu University Hospital; Medical Research Center Oulu; University of Oulu; Oulu Finland
| | - Juha Koskenkari
- Department of Anesthesiology; Division of Intensive Care Medicine; Research Group of Surgery, Anesthesiology and Intensive Care Medicine; Oulu University Hospital; Medical Research Center Oulu; University of Oulu; Oulu Finland
| | - Janne Henrik Liisanantti
- Department of Anesthesiology; Division of Intensive Care Medicine; Research Group of Surgery, Anesthesiology and Intensive Care Medicine; Oulu University Hospital; Medical Research Center Oulu; University of Oulu; Oulu Finland
| | - Remi Kamakura
- Institute of Biomedicine and Biocenter of Oulu; University of Oulu; Oulu Finland
- Medical Research Center Oulu and Oulu University Hospital; Oulu Finland
| | - Karl Heinz Herzig
- Institute of Biomedicine and Biocenter of Oulu; University of Oulu; Oulu Finland
- Medical Research Center Oulu and Oulu University Hospital; Oulu Finland
- Department of Gastroenterology and Metabolism; Poznan University of Medical Sciences; Poznan Poland
| | - Hannu Syrjälä
- Department of Infection Control; Oulu University Hospital; Medical Research Center Oulu; University of Oulu; Oulu Finland
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12
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Non-fat milk attenuates acute hypertriglyceridemia in obese individuals who consume a high fat diet: A randomized control trial. JOURNAL OF NUTRITION & INTERMEDIARY METABOLISM 2018. [DOI: 10.1016/j.jnim.2018.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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13
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Bjørnshave A, Holst JJ, Hermansen K. A pre-meal of whey proteins induces differential effects on glucose and lipid metabolism in subjects with the metabolic syndrome: a randomised cross-over trial. Eur J Nutr 2018; 58:755-764. [PMID: 29626232 DOI: 10.1007/s00394-018-1684-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 04/03/2018] [Indexed: 01/11/2023]
Abstract
PURPOSE Postprandial lipaemia (PPL), an independent risk factor for cardiovascular disease, is affected by composition and timing of meals. We evaluated if whey proteins (WP) consumed as a pre-meal before a fat-rich meal reduce postprandial triglyceride (TG) and apolipoprotein B-48 (ApoB-48) responses in subjects with the metabolic syndrome (MeS). METHODS An acute, randomised, cross-over trial was conducted. 20 subjects with MeS consumed a pre-meal of 0, 10 or 20 g WP 15 min prior to a fat-rich meal. The responses of TG and ApoB-48 were assessed. We also analysed postprandial responses of free fatty acids (FFA), glucose, insulin, glucagon, glucagon-like peptide 1 (GLP-1), glucose-dependent insulinotropic peptide (GIP) and paracetamol (reflecting gastric emptying rates). RESULTS WP pre-meal did not alter the TG or ApoB-48 responses. In contrast, the insulin response was more pronounced after a pre-meal of 20 g WP than with 10 g WP (P = 0.0005) and placebo (P < 0.0001). Likewise, the postprandial glucagon response was greater with a pre-meal of 20 g WP than with 10 g WP (P < 0.0001) and 0 g WP (P < 0.0001). A pre-meal with 20 g of WP generated lower glucose (P = 0.0148) and S-paracetamol responses (P = 0.0003) and a higher GLP-1 response (P = 0.0086) than placebo. However, the pre-meal did not influence responses of GIP, FFA or appetite assessed by a Visual Analog Scale. CONCLUSIONS Consumption of a WP pre-meal prior to a fat-rich meal did not affect TG and chylomicron responses. In contrast, the WP pre-meal stimulates insulin and glucagon secretion and reduces blood glucose as expected, and delays gastric emptying. Consequently, our study points to a differential impact of a WP pre-meal on lipid and glucose metabolism to a fat-rich meal in subjects with MeS.
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Affiliation(s)
- Ann Bjørnshave
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, 8000, Aarhus C, Denmark. .,Danish Diabetes Academy, Sdr. Boulevard 29, 5000, Odense C, Denmark.
| | - Jens Juul Holst
- NNF Centre for Basic Metabolic Research and The Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3, 2200, København N, Denmark
| | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, 8000, Aarhus C, Denmark
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Fekete ÁA, Giromini C, Chatzidiakou Y, Givens DI, Lovegrove JA. Whey protein lowers systolic blood pressure and Ca-caseinate reduces serum TAG after a high-fat meal in mildly hypertensive adults. Sci Rep 2018; 8:5026. [PMID: 29568003 PMCID: PMC5864936 DOI: 10.1038/s41598-018-23333-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/09/2018] [Indexed: 11/16/2022] Open
Abstract
Epidemiological studies show an inverse association between dairy consumption and blood pressure (BP) but there are few data on the postprandial effects of milk proteins. This study examined their effects, compared to maltodextrin, on postprandial BP and other CVD risk markers in volunteers with mild and pre-hypertension over an 8 h period. In this double-blinded, randomised, cross-over, controlled study 27 adults ingested a high-fat, isoenergetic breakfast and lunch with 28 g whey protein, 28 g Ca-caseinate or 27 g maltodextrin. Whey protein reduced systolic BP compared with Ca-caseinate (−15.2 ± 13.6 mmHg) and maltodextrin (−23.4 ± 10.5 mmHg) up to 5 h post-ingestion. There was an improvement in arterial stiffness after whey protein compared with maltodextrin (incremental Area Under the Curve- iAUC0–8h: +14.4 ± 6.2%). Despite similar glucose levels after both whey protein and Ca-caseinate, whey protein induced a higher insulin response than Ca-caseinate (iAUC0–8h: +219.5 ± 54.6 pmol/L). Ca-caseinate induced less suppression of non-esterified fatty acids than whey protein (iAUC0–5h: −58.9 ± 135.5 μmol/L) and maltodextrin (iAUC0–5h: −106.9 ± 89.4 μmol/L) and induced a smaller postprandial triacylglycerol response than whey protein (iAUC0–8h: −1.68 ± 0.6 mmol/L). Milk proteins co-ingestion with high-fat meals may have the potential to maintain or improve CVD risk factors.
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Affiliation(s)
- Ágnes A Fekete
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences and Institute for Cardiovascular and Metabolic Research (ICMR), School of Chemistry, Food and Pharmacy, University of Reading, Reading, RG6 6AP, United Kingdom.,Institute for Food, Nutrition and Health, University of Reading, Reading, RG6 6AP, United Kingdom
| | - Carlotta Giromini
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Via Trentacoste, 2, 20134, Milan, Italy
| | - Yianna Chatzidiakou
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences and Institute for Cardiovascular and Metabolic Research (ICMR), School of Chemistry, Food and Pharmacy, University of Reading, Reading, RG6 6AP, United Kingdom
| | - D Ian Givens
- Institute for Food, Nutrition and Health, University of Reading, Reading, RG6 6AP, United Kingdom
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences and Institute for Cardiovascular and Metabolic Research (ICMR), School of Chemistry, Food and Pharmacy, University of Reading, Reading, RG6 6AP, United Kingdom. .,Institute for Food, Nutrition and Health, University of Reading, Reading, RG6 6AP, United Kingdom.
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Qin L, Wong S, Sun FH, Huang Y, Sheridan S, Sit C. The effect of carbohydrate and protein co-ingestion on energy substrate metabolism, sense of effort, and affective responses during prolonged strenuous endurance exercise. Physiol Behav 2017; 174:170-177. [DOI: 10.1016/j.physbeh.2017.02.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 02/21/2017] [Accepted: 02/24/2017] [Indexed: 01/19/2023]
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Can milk proteins be a useful tool in the management of cardiometabolic health? An updated review of human intervention trials. Proc Nutr Soc 2016; 75:328-41. [PMID: 27150497 DOI: 10.1017/s0029665116000264] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The prevalence of cardiometabolic diseases is a significant public health burden worldwide. Emerging evidence supports the inverse association between greater dairy consumption and reduced risk of cardiometabolic diseases. Dairy proteins may have an important role in the favourable impact of dairy on human health such as blood pressure (BP), blood lipid and glucose control. The purpose of this review is to update and critically evaluate the evidence on the impacts of casein and whey protein in relation to metabolic function. Evidence from short-term clinical studies assessing postprandial responses to milk protein ingestion suggests benefits on vascular function independent of BP, as well as improvement in glycaemic homeostasis. Long-term interventions have been less conclusive, with some showing benefits and others indicating a lack of improvement in vascular function. During chronic consumption BP appears to be lowered and both dyslipidaemia and hyperglacaemia seem to be controlled. Limited number of trials investigated the effects of dairy proteins on oxidative stress and inflammation. Although the underlying mechanisms of milk proteins on cardiometabolic homeostasis remains to be elucidated, the most likely mechanism is to improve insulin resistance. The incorporation of meals enriched with dairy protein in the habitual diet may result in the beneficial effects on cardiometabolic health. Nevertheless, future well-designed, controlled studies are needed to investigate the relative effects of both casein and whey protein on BP, vascular function, glucose homeostasis and inflammation.
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17
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Bioavailability of milk protein-derived bioactive peptides: a glycaemic management perspective. Nutr Res Rev 2016; 29:91-101. [DOI: 10.1017/s0954422416000032] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractMilk protein-derived peptides have been reported to have potential benefits for reducing the risk of type 2 diabetes. However, what the active components are and whether intact peptides exert this bioactivity has received little investigation in human subjects. Furthermore, potentially useful bioactive peptides can be limited by low bioavailability. Various peptides have been identified in the gastrointestinal tract and bloodstream after milk-protein ingestion, providing valuable insights into their potential bioavailability. However, these studies are currently limited and the structure and sequence of milk peptides exerting bioactivity for glycaemic management has received little investigation in human subjects. The present article reviews the bioavailability of milk protein-derived peptides in human studies to date, and examines the evidence on milk proteins and glycaemic management, including potential mechanisms of action. Areas in need of advancement are identified. Only by establishing the bioavailability of milk protein-derived peptides, the active components and the mechanistic pathways involved can the benefits of milk proteins for the prevention or management of type 2 diabetes be fully realised in future.
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Turner KM, Keogh JB, Clifton PM. Acute effect of red meat and dairy on glucose and insulin: a randomized crossover study. Am J Clin Nutr 2016; 103:71-6. [PMID: 26675776 DOI: 10.3945/ajcn.115.123505] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/04/2015] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND In contrast with some epidemiologic evidence, our previous research showed that a 4-wk diet that was high in low-fat dairy reduced insulin sensitivity compared with the effect of a diet that was high in red meat. OBJECTIVE We investigated whether a dairy meal would produce a greater insulin response than a carbohydrate-matched red meat meal would, which might account for the change in insulin sensitivity. DESIGN One meal contained lean red meat, bread, and orange juice, and the other meal contained skim milk, low-fat yogurt, cheese, and bread. Meals were isoenergetic, equal in macronutrient profile, and consumed 1 wk apart. Glucose, insulin, and triglycerides were measured before and 30, 60, 90, 120, 150, and 180 min after meal consumption. Differences between meals were tested with the use of a repeated-measures ANOVA and paired sample t tests. RESULTS Nineteen men and 24 women [mean ± SD age: 50.8 ± 16.0 y; body mass index (in kg/m(2)): 30.0 ± 3.5] completed the study. Twenty-two participants had normal glucose tolerance, and 21 participants had impaired fasting glucose or impaired glucose tolerance. The red meat meal resulted in a higher glucose response at 30 min after consumption (P < 0.001); however, the glucose total AUC was not different between meals (P = NS). The mean ± SEM incremental AUC (iAUC) for glucose was significantly higher after the dairy meal than after the red meat meal (2.23 ± 0.49 compared with 0.88 ± 0.57 mmol/L · 3 h, respectively; P = 0.004). The insulin total AUC and iAUC were not different between meals (iAUC: 159.65 ± 20.0 mU/L · 3 h for red meat compared with 167.49 ± 24.1 mU/L · 3 h for dairy; P = NS). CONCLUSIONS Lean red meat and low-fat dairy produced a similar glycemic response. The higher glucose response 30 min after consumption of the red meat meal was likely attributable to differences in the glycemic load between orange juice and milk and yogurt. An insulinotropic effect of dairy was not observed. This trial was registered at www.anzctr.org.au as ACTRN12615000164594.
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Affiliation(s)
- Kirsty M Turner
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Jennifer B Keogh
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Peter M Clifton
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
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Mignone LE, Wu T, Horowitz M, Rayner CK. Whey protein: The “whey” forward for treatment of type 2 diabetes? World J Diabetes 2015; 6:1274-1284. [PMID: 26516411 PMCID: PMC4620107 DOI: 10.4239/wjd.v6.i14.1274] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/11/2015] [Accepted: 10/19/2015] [Indexed: 02/05/2023] Open
Abstract
A cost-effective nutritional approach to improve postprandial glycaemia is attractive considering the rising burden of diabetes throughout the world. Whey protein, a by-product of the cheese-making process, can be used to manipulate gut function in order to slow gastric emptying and stimulate incretin hormone secretion, thereby attenuating postprandial glycaemic excursions. The function of the gastrointestinal tract plays a pivotal role in glucose homeostasis, particularly during the postprandial period, and this review will discuss the mechanisms by which whey protein slows gastric emptying and stimulates release of gut peptides, including the incretins. Whey protein is also a rich source of amino acids, and these can directly stimulate beta cells to secrete insulin, which contributes to the reduction in postprandial glycaemia. Appetite is suppressed with consumption of whey, due to its effects on the gut-brain axis and the hypothalamus. These properties of whey protein suggest its potential in the management of type 2 diabetes. However, the optimal dose and timing of whey protein ingestion are yet to be defined, and studies are required to examine the long-term benefits of whey consumption for overall glycaemic control.
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20
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Bjørnshave A, Hermansen K. Effects of dairy protein and fat on the metabolic syndrome and type 2 diabetes. Rev Diabet Stud 2014; 11:153-66. [PMID: 25396403 DOI: 10.1900/rds.2014.11.153] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The incidence of the metabolic syndrome (MetS) and type 2 diabetes (T2D) is increasing worldwide. Evidence supports a negative relationship between the consumption of dairy products and risk of MetS and T2D. Dairy proteins are known to have a directly beneficial effect on hypertension, dyslipidemia, and hyperglycemia, but a detailed understanding of the underlying mechanisms is missing. It has been confirmed by observations that the insulinotropic effect of dairy proteins is associated with the amino acid composition; in particular branched-chain amino acids (BCAA) seem to be of vital importance. Dairy protein-derived peptides may also contribute to the insulinotropic effect via dipeptidyl peptidase-4 (DPP-4) inhibitory activity, and may lower the blood pressure (BP). The lipid metabolism may be improved by whey protein (WP), which acts to reduce the postprandial triglyceride (TG) response. The effect of dairy fat is much more controversial because of the potentially harmful effect exerted by saturated fatty acid (SFA) on metabolic health. Recent observations suggest less adverse effects of SFA on metabolic health than previous assumed. However, little is known about dairy lipid fractions belonging to the groups of monounsaturated fatty acids (MUFA), polyunsaturated fatty acids (PUFA), and phospholipids (PL). Dairy fat seems to act differently depending on the dairy product and the composition of macronutrients in the meal. Therefore, for a better understanding of the mechanisms behind the dairy protein and fat effect on MetS, we suggest that more human studies should be carried out to clarify the interactions of dairy protein and fat with macronutrients in the meal and other dairy components, such as micronutrients and microorganisms from fermented products.
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Affiliation(s)
- Ann Bjørnshave
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, 8000 Aarhus C., Denmark
| | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Tage-Hansens Gade 2, 8000 Aarhus C., Denmark
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21
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Bendtsen LQ, Lorenzen JK, Bendsen NT, Rasmussen C, Astrup A. Effect of dairy proteins on appetite, energy expenditure, body weight, and composition: a review of the evidence from controlled clinical trials. Adv Nutr 2013; 4:418-38. [PMID: 23858091 PMCID: PMC3941822 DOI: 10.3945/an.113.003723] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Evidence supports that a high proportion of calories from protein increases weight loss and prevents weight (re)gain. Proteins are known to induce satiety, increase secretion of gastrointestinal hormones, and increase diet-induced thermogenesis, but less is known about whether various types of proteins exert different metabolic effects. In the Western world, dairy protein, which consists of 80% casein and 20% whey, is a large contributor to our daily protein intake. Casein and whey differ in absorption and digestion rates, with casein being a "slow" protein and whey being a "fast" protein. In addition, they differ in amino acid composition. This review examines whether casein, whey, and other protein sources exert different metabolic effects and targets to clarify the underlying mechanisms. Data indicate that whey is more satiating in the short term, whereas casein is more satiating in the long term. In addition, some studies indicate that whey stimulates the secretion of the incretin hormones glucagon-like peptide-1 and glucose-dependent insulinotropic polypeptide more than other proteins. However, for the satiety (cholecystokinin and peptide YY) and hunger-stimulating (ghrelin) hormones, no clear evidence exists that 1 protein source has a greater stimulating effect compared with others. Likewise, no clear evidence exists that 1 protein source results in higher diet-induced thermogenesis and promotes more beneficial changes in body weight and composition compared with other protein sources. However, data indicate that amino acid composition, rate of absorption, and protein/food texture may be important factors for protein-stimulated metabolic effects.
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Affiliation(s)
- Line Q. Bendtsen
- Departments of Nutrition, Exercise, and Sports, Faculty of Science and,To whom correspondence should be addressed. E-mail:
| | - Janne K. Lorenzen
- Departments of Nutrition, Exercise, and Sports, Faculty of Science and
| | | | - Charlotte Rasmussen
- Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Arne Astrup
- Departments of Nutrition, Exercise, and Sports, Faculty of Science and
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22
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McGregor RA, Poppitt SD. Milk protein for improved metabolic health: a review of the evidence. Nutr Metab (Lond) 2013; 10:46. [PMID: 23822206 PMCID: PMC3703276 DOI: 10.1186/1743-7075-10-46] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 06/23/2013] [Indexed: 02/07/2023] Open
Abstract
Epidemiological evidence shows that consumption of dairy products is associated with decreased prevalence of metabolic related disorders, whilst evidence from experimental studies points towards dairy protein as a dietary component which may aid prevention of type 2 diabetes (T2DM). Poor metabolic health is a common characteristic of overweight, obesity and aging, and is the forerunner of T2DM and cardiovascular disease (CVD), and an ever increasing global health issue. Progressive loss of metabolic control is evident from a blunting of carbohydrate, fat and protein metabolism, which is commonly manifested through decreased insulin sensitivity, inadequate glucose and lipid control, accompanied by a pro-inflammatory environment and hypertension. Adverse physiological changes such as excess visceral adipose tissue deposition and expansion, lipid overspill and infiltration into liver, muscle and other organs, and sarcopaenia or degenerative loss of skeletal muscle mass and function all underpin this adverse profile. ‘Sarcobesity’ and sarcopaenic diabetes are rapidly growing health issues. As well as through direct mechanisms, dairy protein may indirectly improve metabolic health by aiding loss of body weight and fat mass through enhanced satiety, whilst promoting skeletal muscle growth and function through anabolic effects of dairy protein-derived branch chain amino acids (BCAAs). BCAAs enhance muscle protein synthesis, lean body mass and skeletal muscle metabolic function. The composition and processing of dairy protein has an impact on digestion, absorption, BCAA kinetics and function, hence the optimisation of dairy protein composition through selection and combination of specific protein components in milk may provide a way to maximize benefits for metabolic health.
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Affiliation(s)
- Robin A McGregor
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand.
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Metabolite profiling and beyond: approaches for the rapid processing and annotation of human blood serum mass spectrometry data. Anal Bioanal Chem 2013; 405:5037-48. [DOI: 10.1007/s00216-013-6954-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 03/15/2013] [Accepted: 03/27/2013] [Indexed: 01/10/2023]
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