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Moore JM, Salmons H, Vinoskey C, Hooshmand S, Kressler J. One minute of stair climbing and descending reduces postprandial insulin and glucose with 3-min improving insulin resistance following a mixed meal in young adults: A Randomized Controlled Crossover Trial. J Exerc Sci Fit 2024; 22:266-270. [PMID: 38572086 PMCID: PMC10987319 DOI: 10.1016/j.jesf.2024.03.004] [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: 12/20/2023] [Revised: 02/20/2024] [Accepted: 03/16/2024] [Indexed: 04/05/2024] Open
Abstract
Background Glycemic markers, including postprandial glucose, insulin, and insulin resistance, are strong predictors of morbidity and mortality in individuals with and without diabetes. Stair-climbing and -descending (SCD) at a comfortable pace for 3 minutes after a sugary beverage (300 kilocalories; 100% carbohydrate) lowers insulin, with insulin sensitivity improving in 10 minutes. If similar benefits are seen following consumption of a mixed meal is unknown. We hypothesize SCD will improve these markers in a dose-response manner following a mixed meal. Methods In a randomized, controlled, crossover trial, young adults (N = 31) performed SCD for 0 (seated control), 1, 3, and 10 minutes after a mixed meal (650 kilocalories; 53% carbohydrates, 33% fat, and 14% protein). Differences in glucose, insulin, and insulin sensitivity (ISI) from baseline to 30 min were analyzed using a mixed-effects ANOVA. Results A significant fixed-effect was found for change in glucose [F(2.551,67.17) = 4.724,p = 0.007)], insulin [F(2.692,74.49) = 11.28,p < 0.001)], and ISI [F(2.127,56.00) = 5.848,p = 0.004)]. Compared to the seated control (0 minutes), changes in glucose were lower after 1 minute (-14.0 (-7.2)mg/dL,p < 0.001), 3 minutes (-18.4 (-7.0)mg/dL,p = 0.0007), and 10 minutes (-10.0 (-8.1)mg/dL,p = 0.039); changes in insulin were lower after 1 minute (-1.8 (-0.9)μIU/mL,p = 0.0011), 3 minutes (-2.8 (-0.9)μIU/mL,p < 0.001), and 10 minutes (-1.1 (-0.9)μIU/mL,p = 0.033); and changes in ISI were significantly higher after 3 minutes (2.4 (1.5),p < 0.001) and 10 minutes (1.3 (1.6),p = 0.014) but not 1 minute (1.2 (1.5),p = 0.059). Conclusion Postprandial glucose and insulin improved with 1 minute, and insulin resistance improved with 3 minutes, of SCD at a self-selected, comfortable pace, after consumption of a mixed meal in apparently healthy young adults. Protocol Trial registration: ClinicalTrials.gov Identifier: NCT04232475.
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Affiliation(s)
- Jeff M. Moore
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182, USA
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, 90502, USA
| | - Hannah Salmons
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182, USA
| | - Cameron Vinoskey
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182, USA
| | - Shirin Hooshmand
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182, USA
| | - Jochen Kressler
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182, USA
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Stinson EJ, Mitchell CM, Looker HC, Krakoff J, Chang DC. Higher glucose and insulin responses to a mixed meal are associated with increased risk of diabetic retinopathy in Indigenous Americans. J Endocrinol Invest 2024; 47:699-707. [PMID: 37684485 DOI: 10.1007/s40618-023-02187-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
PURPOSE Prior research has focused on glucose/insulin responses to meal challenges to create personalized diets to improve health, though it is unclear if these responses predict chronic diseases. We aimed to identify glucose and insulin responses to a mixed meal tolerance test (MMTT) that predict the development of diabetic retinopathy (DR) and compare the predictive abilities with the oral glucose tolerance test (OGTT). METHODS Indigenous American adults without diabetes (n = 168) underwent a 4-h MMTT, body composition assessment, and a 3-h OGTT at baseline. During follow-up (median 13.4 years), DR was diagnosed by direct ophthalmoscopy (n = 28) after onset of type 2 diabetes. Total and incremental area under the curve (AUC and iAUC) were calculated from glucose/insulin responses after the MMTT and OGTT. RESULTS In separate Cox proportional hazards models adjusted for age, sex, and body fat (%), MMTT glucose AUCs (180-min and 240-min) and iAUC (180-min) predicted DR (HR 1.50, 95% CI 1.06, 2.12; HR 1.50, 95% CI 1.05, 2.14; HR 1.58, 95% CI 1.01, 2.46). The predictive abilities were better than the fasting OGTT glucose (p < 0.01) but similar to the 120-min OGTT glucose (p = 0.53). MMTT insulin AUCs (180-min and 240-min) and iAUC (180-min) also predicted DR (HR 1.65, 95% CI 1.09, 2.51; HR 1.58, 95% CI 1.00, 2.35; HR 1.53 95% CI 1.06, 2.22) while insulin AUC and iAUC from the OGTT did not (p > 0.05). CONCLUSIONS Higher MMTT glucose and insulin responses predicted DR and were comparable to the OGTT, supporting the use of a meal challenge for precision nutrition. TRIAL REGISTRATIONS Clinical Trial Registry: ClinicalTrials.gov identifier: NCT00340132, NCT00339482.
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Affiliation(s)
- E J Stinson
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 4212 N. 16th Street, Phoenix, AZ, 85016, USA
| | - C M Mitchell
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 4212 N. 16th Street, Phoenix, AZ, 85016, USA
| | - H C Looker
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 4212 N. 16th Street, Phoenix, AZ, 85016, USA
| | - J Krakoff
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 4212 N. 16th Street, Phoenix, AZ, 85016, USA
| | - D C Chang
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 4212 N. 16th Street, Phoenix, AZ, 85016, USA.
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Helleputte S, Stautemas J, Jansseune L, De Backer T, Marlier J, Lapauw B, Calders P. Glycaemic management around postprandial exercise in people with type 1 diabetes: Challenge accepted. J Clin Endocrinol Metab 2024:dgae079. [PMID: 38330239 DOI: 10.1210/clinem/dgae079] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/10/2024]
Abstract
CONTEXT The precise glycaemic impact and clinical relevance of postprandial exercise in type 1 diabetes has not been clarified yet. OBJECTIVE Examine acute, subacute and late effects of postprandial exercise on blood glucose (BG). DESIGN RCT. SETTING Four lab visits, with 24h follow-up at home. PARTICIPANTS Adults with type 1 diabetes (n=8), age 44±13 years; BMI: 24±2.1 kg/m2. INTERVENTION 30 min of rest (CONTROL), walking (WALK), moderate-intensity (MOD), or intermittent high-intensity (IHE) exercise performed 60min after a standardized meal. MAIN OUTCOME MEASURES BG change during exercise/control (acute), and secondary outcomes included the subacute (≤2h after) and late glycaemic effects (≤24h after). RESULTS Exercise reduced postprandial glucose (PPG) excursion compared to CONTROL, with a consistent BG decline in all patients for all modalities (mean declines -45±24, -71±39, and -35±21 mg/dL, during WALK, MOD and IHE, respectively (p<0.001). For this decline, clinical superiority was demonstrated separately for each exercise modality vs. CONTROL. Non-inferiority of WALK vs. MOD was not demonstrated, non-inferiority of WALK vs. IHE was demonstrated, and equivalence of IHE vs. MOD was not demonstrated. Hypoglycaemia did not occur during exercise. BG increased in the hour after exercise (more than after CONTROL, p<0.001). More than half of participants showed hyperglycaemia after exercise necessitating insulin correction. There were more nocturnal hypoglycaemic events after exercise vs. CONTROL (p<0.05). CONCLUSIONS Postprandial exercise of all modalities is effective, safe and feasible if necessary precautions are taken (i.e., prandial insulin reductions), as exercise lowered maximal PPG excursion and caused a consistent and clinically relevant BG decline during exercise while there was no hypoglycaemia during or shortly after exercise. However, there seem two remaining challenges, being subacute post-exercise hyperglycaemia and nocturnal hypoglycaemia.
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Affiliation(s)
- Simon Helleputte
- Faculty of Medicine and Health Sciences, Ghent University, Belgium
- Fonds Wetenschappelijk Onderzoek (FWO) Vlaanderen, Belgium
| | - Jan Stautemas
- Faculty of Medicine and Health Sciences, Ghent University, Belgium
| | - Laura Jansseune
- Faculty of Medicine and Health Sciences, Ghent University, Belgium
| | - Tine De Backer
- Faculty of Medicine and Health Sciences, Ghent University, Belgium
- Department of Cardiology, Ghent University Hospital, Belgium
- Department of Internal Medicine & Paediatrics, Ghent University, Belgium
| | - Joke Marlier
- Department of Endocrinology, Ghent University Hospital, Belgium
| | - Bruno Lapauw
- Faculty of Medicine and Health Sciences, Ghent University, Belgium
- Department of Internal Medicine & Paediatrics, Ghent University, Belgium
- Department of Endocrinology, Ghent University Hospital, Belgium
| | - Patrick Calders
- Faculty of Medicine and Health Sciences, Ghent University, Belgium
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Lindqvist HM, Gjertsson I, Hulander E, Bärebring L, Winkvist A. Exploring the differences in serum metabolite profiles after intake of red meat in women with rheumatoid arthritis and a matched control group. Eur J Nutr 2024; 63:221-230. [PMID: 37814020 PMCID: PMC10798910 DOI: 10.1007/s00394-023-03257-y] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 09/15/2023] [Indexed: 10/11/2023]
Abstract
PURPOSE Studies have suggested that women with RA tend to avoid red meat more often than women without RA, based on their perception that it exacerbates their symptoms. Therefore, the aim of this study is to investigate and compare the postprandial metabolic response following the consumption of a red meat meal in patients with RA and a matched control group. METHODS Participants were challenged with a meal with red meat and blood samples were collected before and at 0.5, 1, 2, 3 and 5 h after the meal. Serum metabolites were quantified by Nuclear Magnetic Resonance (NMR) analysis. Orthogonal Projections to Latent Structures with Discriminant Analysis (OPLS-DA) was used to evaluate separation by metabolites due to diagnosis of RA or not and to identify changes in metabolites related to RA. Incremental area under the curve was calculated for univariate comparisons for 23 metabolites. RESULTS The matched groups, including 22 women with RA and 22 women without RA, did not differ significantly in age, body mass index, diet quality or reported physical activity. OPLS-DA models had a limited quality indicating that there were no differences in metabolite patterns between the groups. However, phenylalanine was significantly higher in concentration in women with RA compared to controls in both fasting and postprandial samples. CONCLUSION To conclude, this well-controlled postprandial intervention study found a significantly higher concentration of phenylalanine in both fasting and postprandial samples of women with RA compared to matched women without RA. These findings warrant further investigation in larger studies. TRIAL REGISTRATION The PIRA (Postprandial Inflammation in Rheumatoid Arthritis) trial is Registered at Clinicaltrials.gov (NCT04247009).
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Affiliation(s)
- Helen M Lindqvist
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Inger Gjertsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Erik Hulander
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Linnea Bärebring
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anna Winkvist
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Starrett A, Smith R, Urso PM, Urschel KL, Anderson MJ, Suagee-Bedore JK. Dental Correction Does Not Alter Postprandial Nutrient Concentrations in Healthy Mares. J Equine Vet Sci 2023; 131:104935. [PMID: 37778532 DOI: 10.1016/j.jevs.2023.104935] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/05/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
Irregular wear patterns are theorized to cause poor feed digestion and weight loss in the horse. The objective of this study was to test the hypothesis that dental correction would increase postprandial nutrient concentrations and reduce fecal particle size (FPS) in clinically healthy mares. The study was conducted in 16 mares of mature age (4-17) who had not received dental care in the previous year. A diet consisting of ad libitum Coastal Bermudagrass hay and 1.36 kg of a pelleted feed was fed daily prior to and during the study. Eight mares received dental work and eight served as untreated controls. While the consumption of a concentrate meal increased plasma concentrations of glucose and amino acids at 90 minutes postfeeding (P < .001), dental correction did not have an influence on plasma nutrient concentrations (P > .1). On day 56, untreated control horses had a larger percent of large FPS than horses having received dental correction (14.7 ± 0.1 vs. 12.5 ± 0.1; P = .028). Dental correction may improve mechanical digestion of feed, but this does not translate to altered postprandial plasma nutrient concentrations following the consumption of a concentrate meal.
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Affiliation(s)
- Ashley Starrett
- School of Agricultural Sciences, Sam Houston State University, Huntsville, TX
| | | | - Philip M Urso
- TRIES LAB, Sam Houston State University, Huntsville, TX
| | - Kristine L Urschel
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY
| | - Mark J Anderson
- School of Agricultural Sciences, Sam Houston State University, Huntsville, TX
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Senn MK, Goodarzi MO, Ramesh G, Allison MA, Graff M, Young KL, Talavera GA, McClain AC, Garcia TP, Rotter JI, Wood AC. Associations between avocado intake and measures of glucose and insulin homeostasis in Hispanic individuals with and without type 2 diabetes: Results from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). Nutr Metab Cardiovasc Dis 2023; 33:2428-2439. [PMID: 37798236 PMCID: PMC10842938 DOI: 10.1016/j.numecd.2023.08.002] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND AND AIMS To investigate associations between avocado intake and glycemia in adults with Hispanic/Latino ancestry. METHODS AND RESULTS The associations of avocado intake with measures of insulin and glucose homeostasis were evaluated in a cross-sectional analysis of up to 14,591 Hispanic/Latino adults, using measures of: average glucose levels (hemoglobin A1c; HbA1c), fasting glucose and insulin, glucose and insulin levels after an oral glucose tolerance test (OGTT), and calculated measures of insulin resistance (HOMA-IR, and HOMA-%β), and insulinogenic index. Associations were assessed using multivariable linear regression models, which controlled for sociodemographic factors and health behaviors, and which were stratified by dysglycemia status. In those with normoglycemia, avocado intake was associated with a higher insulinogenic index (β = 0.17 ± 0.07, P = 0.02). In those with T2D (treated and untreated), avocado intake was associated with lower hemoglobin A1c (HbA1c; β = -0.36 ± 0.21, P = 0.02), and lower fasting glucose (β = -0.27 ± 0.12, P = 0.02). In the those with untreated T2D, avocado intake was additionally associated with HOMA-%β (β = 0.39 ± 0.19, P = 0.04), higher insulin values 2-h after an oral glucose load (β = 0.62 ± 0.23, P = 0.01), and a higher insulinogenic index (β = 0.42 ± 0.18, P = 0.02). No associations were observed in participants with prediabetes. CONCLUSIONS We observed an association of avocado intake with better glucose/insulin homeostasis, especially in those with T2D.
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Affiliation(s)
- MacKenzie K Senn
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue Houston, TX 77030, USA; The University of Texas Health Science Center at Houston School of Public Health, 1200 Pressler Street, Houston, TX 77030, USA
| | - Mark O Goodarzi
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Gautam Ramesh
- School of Medicine, University of California, La Jolla, San Diego, CA 92037, USA
| | - Matthew A Allison
- Division of Preventive Medicine, Department of Family Medicine, University of California, La Jolla, San Diego, CA 92037, USA
| | - Mariaelisa Graff
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Kristin L Young
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Gregory A Talavera
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA
| | - Amanda C McClain
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA 92182, USA
| | - Tanya P Garcia
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jerome I Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Alexis C Wood
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue Houston, TX 77030, USA.
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Jalleh RJ, Umapathysivam MM, Plummer MP, Deane A, Jones KL, Horowitz M. Postprandial plasma GLP-1 levels are elevated in individuals with postprandial hypoglycaemia following Roux-en-Y gastric bypass - a systematic review. Rev Endocr Metab Disord 2023; 24:1075-1088. [PMID: 37439960 PMCID: PMC10697890 DOI: 10.1007/s11154-023-09823-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/28/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND AND AIMS Bariatric surgery is the most effective treatment in individuals with obesity to achieve remission of type 2 diabetes. Post-bariatric surgery hypoglycaemia occurs frequently, and management remains suboptimal, because of a poor understanding of the underlying pathophysiology. The glucoregulatory hormone responses to nutrients in individuals with and without post-bariatric surgery hypoglycaemia have not been systematically examined. MATERIALS AND METHODS The study protocol was prospectively registered with PROSPERO. PubMed, EMBASE, Web of Science and the Cochrane databases were searched for publications between January 1990 and November 2021 using MeSH terms related to post-bariatric surgery hypoglycaemia. Studies were included if they evaluated individuals with post-bariatric surgery hypoglycaemia and included measurements of plasma glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), insulin, C-peptide and/or glucagon concentrations following an ingested nutrient load. Glycated haemoglobin (HbA1c) was also evaluated. A random-effects meta-analysis was performed, and Hedges' g (standardised mean difference) and 95% confidence intervals were reported for all outcomes where sufficient studies were available. The τ2 estimate and I2 statistic were used as tests for heterogeneity and a funnel plot with the Egger regression-based test was used to evaluate for publication bias. RESULTS From 377 identified publications, 12 were included in the analysis. In all 12 studies, the type of bariatric surgery was Roux-en-Y gastric bypass (RYGB). Comparing individuals with and without post-bariatric surgery hypoglycaemia following an ingested nutrient load, the standardised mean difference in peak GLP-1 was 0.57 (95% CI, 0.32, 0.82), peak GIP 0.05 (-0.26, 0.36), peak insulin 0.84 (0.44, 1.23), peak C-peptide 0.69 (0.28, 1.1) and peak glucagon 0.05 (-0.26, 0.36). HbA1c was less in individuals with hypoglycaemia - 0.40 (-0.67, -0.12). There was no evidence of substantial heterogeneity in any outcome except for peak insulin: τ2 = 0.2, I2 = 54.3. No publication bias was evident. CONCLUSION Following RYGB, postprandial peak plasma GLP-1, insulin and C-peptide concentrations are greater in individuals with post-bariatric surgery hypoglycaemia, while HbA1c is less. These observations support the concept that antagonism of GLP-1 would prove beneficial in the management of individuals with hypoglycaemia following RYGB.PROSPERO Registration Number: CRD42021287515.
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Affiliation(s)
- Ryan Joseph Jalleh
- Adelaide Medical School, The University of Adelaide, South Australia, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, South Australia, Australia
- Diabetes and Endocrine Services, Northern Adelaide Local Health Network, South Australia, Australia
| | - Mahesh Michael Umapathysivam
- Adelaide Medical School, The University of Adelaide, South Australia, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, South Australia, Australia
| | - Mark Philip Plummer
- Adelaide Medical School, The University of Adelaide, South Australia, Australia
| | - Adam Deane
- Intensive Care Unit, Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Karen Louise Jones
- Adelaide Medical School, The University of Adelaide, South Australia, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, South Australia, Australia
| | - Michael Horowitz
- Adelaide Medical School, The University of Adelaide, South Australia, Australia.
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, South Australia, Australia.
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Taskinen MR, Matikainen N, Björnson E, Söderlund S, Inkeri J, Hakkarainen A, Parviainen H, Sihlbom C, Thorsell A, Andersson L, Adiels M, Packard CJ, Borén J. Contribution of intestinal triglyceride-rich lipoproteins to residual atherosclerotic cardiovascular disease risk in individuals with type 2 diabetes on statin therapy. Diabetologia 2023; 66:2307-2319. [PMID: 37775612 PMCID: PMC10627993 DOI: 10.1007/s00125-023-06008-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/30/2023] [Indexed: 10/01/2023]
Abstract
AIMS/HYPOTHESIS This study explored the hypothesis that significant abnormalities in the metabolism of intestinally derived lipoproteins are present in individuals with type 2 diabetes on statin therapy. These abnormalities may contribute to residual CVD risk. METHODS To investigate the kinetics of ApoB-48- and ApoB-100-containing lipoproteins, we performed a secondary analysis of 11 overweight/obese individuals with type 2 diabetes who were treated with lifestyle counselling and on a stable dose of metformin who were from an earlier clinical study, and compared these with 11 control participants frequency-matched for age, BMI and sex. Participants in both groups were on a similar statin regimen during the study. Stable isotope tracers were used to determine the kinetics of the following in response to a standard fat-rich meal: (1) apolipoprotein (Apo)B-48 in chylomicrons and VLDL; (2) ApoB-100 in VLDL, intermediate-density lipoprotein (IDL) and LDL; and (3) triglyceride (TG) in VLDL. RESULTS The fasting lipid profile did not differ significantly between the two groups. Compared with control participants, in individuals with type 2 diabetes, chylomicron TG and ApoB-48 levels exhibited an approximately twofold higher response to the fat-rich meal, and a twofold higher increment was observed in ApoB-48 particles in the VLDL1 and VLDL2 density ranges (all p < 0.05). Again comparing control participants with individuals with type 2 diabetes, in the latter, total ApoB-48 production was 25% higher (556 ± 57 vs 446 ± 57 mg/day; p < 0.001), conversion (fractional transfer rate) of chylomicrons to VLDL was around 40% lower (35 ± 25 vs 82 ± 58 pools/day; p=0.034) and direct clearance of chylomicrons was 5.6-fold higher (5.6 ± 2.2 vs 1.0 ± 1.8 pools/day; p < 0.001). During the postprandial period, ApoB-48 particles accounted for a higher proportion of total VLDL in individuals with type 2 diabetes (44%) compared with control participants (25%), and these ApoB-48 VLDL particles exhibited a fivefold longer residence time in the circulation (p < 0.01). No between-group differences were seen in the kinetics of ApoB-100 and TG in VLDL, or in LDL ApoB-100 production, pool size and clearance rate. As compared with control participants, the IDL ApoB-100 pool in individuals with type 2 diabetes was higher due to increased conversion from VLDL2. CONCLUSIONS/INTERPRETATION Abnormalities in the metabolism of intestinally derived ApoB-48-containing lipoproteins in individuals with type 2 diabetes on statins may help to explain the residual risk of CVD and may be suitable targets for interventions. TRIAL REGISTRATION ClinicalTrials.gov NCT02948777.
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Affiliation(s)
- Marja-Riitta Taskinen
- Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Niina Matikainen
- Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
- Endocrinology, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - Elias Björnson
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Sanni Söderlund
- Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
- Endocrinology, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - Jussi Inkeri
- HUS Medical Imaging Center, Radiology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Antti Hakkarainen
- HUS Medical Imaging Center, Radiology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Helka Parviainen
- HUS Medical Imaging Center, Radiology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Carina Sihlbom
- Proteomic Core Facility at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Annika Thorsell
- Proteomic Core Facility at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Linda Andersson
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Martin Adiels
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Chris J Packard
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Jan Borén
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
- Wallenberg Laboratory, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden.
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Medak KD, McKie GL, Peppler WT, Shamshoum H, Dibe HA, Mutch DM, Josse AR, Wright DC. Liver triacylglycerol accumulation but not postprandial lipemia is reduced by a skim milk powder diet in male rats. Nutr Res 2023; 119:65-75. [PMID: 37757641 DOI: 10.1016/j.nutres.2023.09.003] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/05/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
Increases in postprandial lipids are linked to the development of cardiometabolic and fatty liver disease. Prior work has suggested that dairy possesses beneficial cardiometabolic effects and thus the aim of the current investigation was to test the hypotheses that the habitual consumption of dairy, in the form of skim milk powder (SMP), would protect against increases in circulating lipids and liver lipid accumulation following an oral fat challenge in rats. Male rats were fed either a semipurified low-fat control diet with casein or a diet with an equivalent amount of protein (∼13% kcal) provided through skim milk powder (SMP) for 6 weeks (n = 40/group). Rats were then given an oral gavage of palm oil (5 mL/kg body weight) or an equivalent volume of water, and serum and liver were harvested 90 minutes or 4 hours after. Rats fed the SMP diet gained less weight than controls but there were no differences in glucose tolerance between groups. The fat gavage increased serum lipids in both diet groups, whereas there was a main effect of the fat challenge to increase, and the SMP diet, to decrease liver triacylglycerol accumulation. The percentage of saturated and monounsaturated fatty acids and the protein content/activity of lipogenic enzymes were reduced in livers from SMP-fed rats, whereas the percentage of polyunsaturated fatty acids was increased. In summary, we provide evidence that SMP consumption, although not protecting against postprandial lipemia, markedly attenuates triacylglycerol accumulation and the relative amount of saturated and monounsaturated fatty acids in the liver.
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Affiliation(s)
- Kyle D Medak
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada.
| | - Greg L McKie
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada
| | - Willem T Peppler
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada
| | - Hesham Shamshoum
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada
| | - Hana A Dibe
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada
| | - David M Mutch
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada
| | - Andrea R Josse
- Faculty of Health, School of Kinesiology and Health Science, York University, Toronto Ontario, Canada
| | - David C Wright
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph Ontario Canada; School of Kinesiology, University of British Columbia, Vancouver British Columbia, Canada; Faculty of Land and Food Systems, University of British Columbia, Vancouver British Columbia, Canada; BC Children's Hospital Research Institute, Vancouver British Columbia, Canada.
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10
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Montserrat-de la Paz S, Del Carmen Naranjo M, Lopez S, Del Carmen Millan-Linares M, Rivas-Dominguez A, Jaramillo-Carmona SM, Abia R, Muriana FJG, Bermudez B. Immediate-release niacin and a monounsaturated fatty acid-rich meal on postprandial inflammation and monocyte characteristics in men with metabolic syndrome. Clin Nutr 2023; 42:2138-2150. [PMID: 37774650 DOI: 10.1016/j.clnu.2023.08.017] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND & AIM When considered separately, long-term immediate-release niacin and fatty meals enriched in monounsaturated fatty acids (MUFA) decrease postprandial triglycerides, but their effects on postprandial inflammation, which is common in individuals with metabolic syndrome, are less known. Moreover, successful combination is lacking and its impact on acute disorders of the innate immune cells in the metabolic syndrome remains unclear. Here, we aimed to establish the effects from combination with niacin of different fats [butter, enriched in saturated fatty acids (SFA), olive oil, enriched in MUFA, and olive oil supplemented with eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids] on plasma inflammatory markers and circulating monocyte subsets, activation and priming at the postprandial period in individuals with metabolic syndrome. METHODS A random-order within-subject crossover experiment was performed, in which 16 individuals with metabolic syndrome and 16 age-matched healthy volunteers took 2 g immediate-release niacin together with the corresponding fatty meal or a meal with no fat as control. In total, 128 postprandial curves were analysed. We sampled hourly over 6 h for plasma concentrations of soluble inflammatory markers and triglycerides. Circulating monocyte subsets (CD14/CD16 balance), activation (CCL2/CCR2 axis) and priming (M1/M2-like phenotype) at the time of postprandial hypertriglyceridemic peak were also addressed. RESULTS Dietary SFA (combined with niacin) promote postprandial excursions of circulating IL-6, IL-1β, TNF-α and CD14/CCR2-rich monocytes with a pro-inflammatory M1-like phenotype, particularly in individuals with metabolic syndrome. In contrast, dietary MUFA (combined with niacin) postprandially increased circulating CD16-rich monocytes with an anti-inflammatory M2-like phenotype. Omega-3 PUFA did not add to the effects of MUFA. CONCLUSION The co-administration of a single-dose of immediate-release niacin with a fatty meal rich in MUFA, in contrast to SFA, suppresses postprandial inflammation at the levels of both secretory profile and monocyte response in individuals with metabolic syndrome. These findings highlight a potential role of combining niacin and dietary MUFA for the homeostatic control of inflammation and the innate immune system, identifying a new search direction for the management of disorders associated with the metabolic syndrome.
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Affiliation(s)
- Sergio Montserrat-de la Paz
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013 Seville, Spain; Department of Medical Biochemistry, Molecular Biology, and Immunology, School of Medicine, University of Seville, 41009 Seville, Spain
| | - Maria Del Carmen Naranjo
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013 Seville, Spain
| | - Sergio Lopez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013 Seville, Spain; Department of Cell Biology, Faculty of Biology, University of Seville, 41012 Seville, Spain; Instituto de Biomedicina de Sevilla (IBiS/CSIC), Hospital Universitario Virgen del Rocio, University of Seville, 41013 Seville, Spain
| | - Maria Del Carmen Millan-Linares
- Department of Medical Biochemistry, Molecular Biology, and Immunology, School of Medicine, University of Seville, 41009 Seville, Spain; Cell Biology Unit, Instituto de la Grasa, CSIC, 41013 Seville, Spain
| | | | | | - Rocio Abia
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013 Seville, Spain
| | - Francisco J G Muriana
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013 Seville, Spain
| | - Beatriz Bermudez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013 Seville, Spain; Department of Cell Biology, Faculty of Biology, University of Seville, 41012 Seville, Spain.
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11
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Hengist A, Sciarrillo CM, Guo J, Walter M, Hall KD. Discordance between gut-derived appetite hormones and energy intake in humans. medRxiv 2023:2023.05.10.23289718. [PMID: 37425848 PMCID: PMC10327278 DOI: 10.1101/2023.05.10.23289718] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Gut-derived hormones affect appetite and are thought to play an important role in body weight regulation. Dietary macronutrient composition can influence gut-derived appetite hormone concentrations, thereby providing theoretical basis for why some diets might facilitate weight loss better than others. We investigated postprandial gut-derived appetite hormones in 20 inpatient adults after 2 weeks of eating either a low carbohydrate (LC) or a low fat (LF) diet followed by the alternate diet in random order. A LC meal resulted in significantly greater postprandial GLP-1, GIP, and PYY but lower ghrelin compared to an isocaloric LF meal (all p≤0.02). However, differences in gut-derived appetite hormones were incommensurate with subsequent ad libitum energy intake over the rest of the day, which was 551±103 kcal (p<0.0001) greater with the LC as compared to the LF diet. The effects of gut-derived appetite hormones on ad libitum energy intake can be dominated by other diet-related factors, at least in the short-term.
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Affiliation(s)
- Aaron Hengist
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda MD, 20892, USA
| | - Christina M. Sciarrillo
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda MD, 20892, USA
| | - Juen Guo
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda MD, 20892, USA
| | - Mary Walter
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda MD, 20892, USA
| | - Kevin D. Hall
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda MD, 20892, USA
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12
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Anfinsen ÅM, Rosendahl-Riise H, Nygård O, Tell GS, Ueland PM, Ulvik A, McCann A, Dierkes J, Lysne V. Exploratory analyses on the effect of time since last meal on concentrations of amino acids, lipids, one-carbon metabolites, and vitamins in the Hordaland Health Study. Eur J Nutr 2023; 62:3079-3095. [PMID: 37498368 PMCID: PMC10468919 DOI: 10.1007/s00394-023-03211-y] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 07/10/2023] [Indexed: 07/28/2023]
Abstract
PURPOSE Dietary intake may have pronounced effects on circulating biomarker concentrations. Therefore, the aim was to provide a descriptive overview of serum metabolite concentrations in relation to time since last meal, focusing on amino acids, lipids, one-carbon metabolites, and biomarkers of vitamin status. METHODS We used baseline data from the observational community-based Hordaland Health Study, including 2960 participants aged 46-49 years and 2874 participants aged 70-74 years. A single blood draw was taken from each participant, and time since last meal varied. Estimated marginal geometric mean metabolite concentrations were plotted as a function of time since last meal, up to 7 h, adjusted for age, sex, and BMI. RESULTS We observed a common pattern for nearly all amino acids and one-carbon metabolites with highest concentrations during the first 3 h after dietary intake. Homocysteine and cysteine were lowest the 1st hour after a meal, while no patterns were observed for glutamate and glutamic acid. The concentrations of phylloquinone and triglycerides were highest 1 h after dietary intake. Thiamine and thiamine monophosphate concentrations were highest, while flavin mononucleotide concentrations were lowest within the first 2 h after a meal. No clear patterns emerged for the other fat-soluble vitamins, blood lipids, or B-vitamin biomarkers. CONCLUSION Our findings suggest that distinguishing between "fasting" and "non-fasting" blood samples may be inadequate, and a more granular approach is warranted. This may have implications for how to account for dietary intake when blood sampling in both clinical and research settings.
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Affiliation(s)
- Åslaug Matre Anfinsen
- Mohn Nutrition Research Laboratory, Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway.
| | - Hanne Rosendahl-Riise
- Mohn Nutrition Research Laboratory, Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Ottar Nygård
- Mohn Nutrition Research Laboratory, Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | | | | | | | | | - Jutta Dierkes
- Mohn Nutrition Research Laboratory, Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Department of Laboratory Medicine and Pathology, Haukeland University Hospital, Bergen, Norway
| | - Vegard Lysne
- Mohn Nutrition Research Laboratory, Centre for Nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
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13
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Johansen MØ, Moreno-Vedia J, Balling M, Davey Smith G, Nordestgaard BG. Triglyceride content increases while cholesterol content decreases in HDL and LDL+IDL fractions following normal meals: The Copenhagen General Population Study of 25,656 individuals. Atherosclerosis 2023; 383:117316. [PMID: 37820443 PMCID: PMC7615473 DOI: 10.1016/j.atherosclerosis.2023.117316] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND AND AIMS During fat tolerance tests, plasma triglycerides increase while high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, and intermediate-density lipoprotein (IDL) cholesterol decrease. However, it is unknown whether triglyceride content increases and cholesterol content decreases in HDL and LDL + IDL fractions following normal meals in the general population. Therefore, we tested the hypothesis that triglyceride content increases while cholesterol content decreases in HDL and LDL + IDL fractions following normal meals. METHODS In this cross-sectional study, we included 25,656 individuals aged 20-100 years, all without lipid-lowering therapy at examination and selected for metabolomic profiling from the Copenhagen General Population Study. Triglyceride and cholesterol content of 14 lipoprotein fractions weas measured using nuclear magnetic resonance (NMR) spectroscopy. Time since last meal was recorded by the examiner immediately before blood sampling. RESULTS Following normal meals in age and sex-adjusted analyses and when compared with fasting levels, plasma triglycerides were higher for up to 5-6 h, and triglyceride content was higher for up to 6-7 h in HDL fractions, for up to 6-7 h in LDL + IDL fractions, and for up to 5-6 h in very-low-density lipoprotein (VLDL) fractions. Further, plasma cholesterol was lower for up to 2-3 h, and cholesterol content was lower for up to 0-1 h in HDL fractions and for up to 4-5 h in LDL + IDL fractions, while cholesterol content was higher for up to 4-5 h in VLDL fractions. CONCLUSIONS Following normal meals, triglyceride content increases while cholesterol content decreases in HDL and LDL + IDL fractions.
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Affiliation(s)
- Mia Ø Johansen
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Juan Moreno-Vedia
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; Vascular Medicine and Metabolism Unit, Research Unit on Lipids and Atherosclerosis, Sant Joan University Hospital, Universitat Rovira i Virgili, Reus, Spain; Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Madrid, Spain
| | - Mie Balling
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - George Davey Smith
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School, University of Bristol, United Kingdom; Population Health Sciences, Bristol Medical School, University of Bristol, United Kingdom
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark; Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
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14
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Heidemann BE, Marais AD, Mulder MT, Visseren FLJ, Roeters van Lennep JE, Stroes ESG, Riksen NP, van Vark-van der Zee LC, Blackhurst DM, Koopal C. Composition and distribution of lipoproteins after evolocumab in familial dysbetalipoproteinemia: A randomized controlled trial. J Clin Lipidol 2023; 17:666-676. [PMID: 37517914 DOI: 10.1016/j.jacl.2023.07.004] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 06/20/2023] [Accepted: 07/19/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Proprotein convertase subtilisin kexin type 9 (PCSK9) monoclonal antibodies (mAbs) reduce fasting and post fat load cholesterol in non-HDL and intermediate density lipoprotein (IDL) in familial dysbetalipoproteinemia (FD). However, the effect of PCSK9 mAbs on the distribution and composition of atherogenic lipoproteins in patients with FD is unknown. OBJECTIVE To evaluate the effect of the PCSK9 mAb evolocumab added to standard lipid-lowering therapy in patients with FD on fasting and post fat load lipoprotein distribution and composition. METHODS Randomized placebo-controlled double-blind crossover trial comparing evolocumab (140 mg subcutaneous every 2 weeks) with placebo during two 12-week treatment periods. Patients received an oral fat load at the start and end of each treatment period. Apolipoproteins (apo) were measured with ultracentrifugation, gradient gel electrophoresis, retinyl palmitate and SDS-PAGE. RESULTS PCSK9 mAbs significantly reduced particle number of all atherogenic lipoproteins, with a stronger effect on smaller lipoproteins than on larger lipoproteins (e.g. IDL-apoB 49%, 95%confidence interval (CI) 41-59 and very low-density lipoprotein (VLDL)-apoB 33%, 95%CI 16-50). Furthermore, PCSK9 mAbs lowered cholesterol more than triglyceride (TG) in VLDL, IDL and low-density lipoprotein (LDL) (e.g. VLDL-C 48%, 95%CI 29-63%; and VLDL-TG 20%, 95%CI 6.3-41%). PCSK9 mAbs did not affect the post fat load response of chylomicrons. CONCLUSION PCSK9 mAbs added to standard lipid-lowering therapy in FD patients significantly reduced lipoprotein particle number, in particular the smaller and more cholesterol-rich lipoproteins (i.e. IDL and LDL). PCSK9 mAbs did not affect chylomicron metabolism. It seems likely that the observed effects are achieved by increased hepatic lipoprotein clearance, but the specific working mechanism of PCSK9 mAbs in FD patients remains to be elucidated.
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Affiliation(s)
- Britt E Heidemann
- Department of Vascular Medicine (Drs Heidemann, Visseren, Koopal), University Medical Center Utrecht, Utrecht University, The Netherlands
| | - A David Marais
- Division of Chemical Pathology (Drs Marais, Blackhurst), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Monique T Mulder
- Department of Internal Medicine (Drs Mulder, van Lennep, van Vark - van der Zee), Division of Pharmacology, Vascular and Metabolic Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Frank L J Visseren
- Department of Vascular Medicine (Drs Heidemann, Visseren, Koopal), University Medical Center Utrecht, Utrecht University, The Netherlands.
| | - Jeanine E Roeters van Lennep
- Department of Internal Medicine (Drs Mulder, van Lennep, van Vark - van der Zee), Division of Pharmacology, Vascular and Metabolic Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Internal Medicine (Dr van Lennep), Erasmus Medical Center, Rotterdam, The Netherlands
| | - Erik S G Stroes
- Department of Vascular Medicine (Dr Stroes), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Niels P Riksen
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences (Dr Riksen), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Leonie C van Vark-van der Zee
- Department of Internal Medicine (Drs Mulder, van Lennep, van Vark - van der Zee), Division of Pharmacology, Vascular and Metabolic Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Dee M Blackhurst
- Division of Chemical Pathology (Drs Marais, Blackhurst), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Charlotte Koopal
- Department of Vascular Medicine (Drs Heidemann, Visseren, Koopal), University Medical Center Utrecht, Utrecht University, The Netherlands
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15
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Smith B, Crossley JL, Conner J, Elsey RM, Wang T, Crossley DA. Exposure to hypoxia during embryonic development affects blood flow patterns and heart rate in juvenile American alligators during digestion. Comp Biochem Physiol A Mol Integr Physiol 2023; 282:111440. [PMID: 37169243 DOI: 10.1016/j.cbpa.2023.111440] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/08/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
The developmental environment can alter an organism's phenotype through epigenetic mechanisms. We incubated eggs from American alligators in 10% O2 (hypoxia) to investigate the functional plasticity of blood flow patterns in response to feeding later in life. Digestion is associated with marked elevations of metabolism, and we therefore used the feeding-induced stimulation of tissue O2 demand to determine whether there are lasting effects of developmental hypoxia on the cardiovascular response to digestion later in life. In all animals studied, digestion elicited tachycardia and an elevation of blood flow in the right aorta, left aorta, and the pulmonary artery, whereas flows in the carotid and subclavian artery did not change. We found that heart rate and systemic blood flow remained elevated for a longer time period in juvenile alligators that had been incubated in hypoxia; we also found that the pulmonary blood flow was elevated at 24, 36, and 48 h. Collectively, our findings demonstrate that exposure to hypoxia during incubation has lasting effects on the hemodynamics of juvenile alligators 4 years after hatching.
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Affiliation(s)
- Brandt Smith
- University of North Texas, Department of Biological Sciences, 1155 Union Circle, Denton, TX 76203, USA
| | - Janna L Crossley
- University of North Texas, Department of Biological Sciences, 1155 Union Circle, Denton, TX 76203, USA; Department of Surgery, Center for Organogenesis and Trauma, University of Texas Southwestern, TX 75390, USA
| | - Justin Conner
- University of North Texas, Department of Biological Sciences, 1155 Union Circle, Denton, TX 76203, USA
| | - Ruth M Elsey
- Louisiana Department of Wildlife and Fisheries, Rockefeller Wildlife Refuge, Grand Chenier, LA 70643, USA
| | - Tobias Wang
- Department of Biology- Zoophysiology, Aarhus University, Aarhus C, Denmark
| | - Dane A Crossley
- University of North Texas, Department of Biological Sciences, 1155 Union Circle, Denton, TX 76203, USA.
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16
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Scheen A, Paquot N, Lefèbvre P. [Reactive hypoglycaemia, a frequently mentioned functional disorder, yet overestimated in clinical practice]. Rev Med Liege 2023; 78:363-368. [PMID: 37350216] [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] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Malaises are often attributed to hypoglycaemia in nondiabetic people who don't have any other serious medical problem. Reactive hypoglycaemia, the most frequent one, may be considered as a functional disorder. However, its diagnosis is often overused, because not really demonstrated in most instances. The diagnosis of hypoglycaemia should be structured, based upon the Whipple triad. First, the medical interrogatory must search for adrenergic and neuroglucopenic symptoms that suggest hypoglycaemia. Second, if the malaise is due to a hypoglycaemia, it should resume rapidly after the administration of sugar. Third, hypoglycaemia must be confirmed by a measurement of a low glucose level at the time of a malaise. The latter approach is facilitated by the use of home blood monitoring, a strategy that is now preferred to the use of an oral glucose tolerance test, a non-physiological test far from real-life conditions. When the diagnosis is made based upon this triad, the medical interview should precise the severity of the symptoms and focus on the chronology of the malaises, typically 2-3 hours after a sugar-enriched meal in case of a reactive hypoglycaemia. Therapeutic approach of this functional disorder mostly relies on dietary advices.
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Affiliation(s)
- André Scheen
- Service de Diabétologie, Nutrition et Maladies métaboliques, CHU Liège, Belgique
| | - Nicolas Paquot
- Service de Diabétologie, Nutrition et Maladies métaboliques, CHU Liège, Belgique
| | - Pierre Lefèbvre
- Service de Diabétologie, Nutrition et Maladies métaboliques, CHU Liège, Belgique
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17
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Durainayagam B, Mitchell CJ, Milan AM, Kruger MC, Roy NC, Fraser K, Cameron-Smith D. Plasma metabolomic response to high-carbohydrate meals of differing glycaemic load in overweight women. Eur J Nutr 2023:10.1007/s00394-023-03151-7. [PMID: 37085625 DOI: 10.1007/s00394-023-03151-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/13/2023] [Indexed: 04/23/2023]
Abstract
BACKGROUND Metabolomic dysregulation following a meal in overweight individuals with the Metabolic Syndrome (MetS) involves multiple pathways of nutrient storage and oxidation. OBJECTIVE The aim of the current study was to perform an acute cross-over intervention to examine the interactive actions of meal glycaemic load (GL) on the dynamic responses of the plasma metabolome in overweight females. METHODS Postmenopausal women [63 ± 1.23y; Healthy (n = 20) and MetS (n = 20)] ingested two differing high-carbohydrate test meals (73 g carbohydrate; 51% energy) composed of either low glycemic index (LGI) or high (HGI) foods in a randomised sequence. Plasma metabolome was analysed using liquid chromatography-mass spectrometry (LC-MS). RESULTS In the overweight women with MetS, there were suppressed postprandial responses for several amino acids (AAs), including phenylalanine, leucine, valine, and tryptophan, p < 0.05), irrespective of the meal type. Meal GL exerted a limited impact on the overall metabolomic response, although the postprandial levels of alanine were higher with the low GL meal and uric acid was greater following the high GL meal (p < 0.05). CONCLUSIONS MetS participants exhibited reduced differences in the concentrations of a small set of AAs and a limited group of metabolites implicated in energy metabolism following the meals. However, the manipulation of meal GL had minimal impact on the postprandial metabolome. This study suggests that the GL of a meal is not a major determinant of postprandial response, with a greater impact exerted by the metabolic health of the individual. Trial registration Australia New Zealand Clinical Trials Registry: ACTRN12615001108505 (21/10/2015).
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Affiliation(s)
- Brenan Durainayagam
- Liggins Institute, University of Auckland, Auckland, New Zealand
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, Norfolk Place, London, UK
| | - Cameron J Mitchell
- Liggins Institute, University of Auckland, Auckland, New Zealand
- School of Kinesiology, The University of British Columbia, Vancouver, BC, Canada
| | - Amber M Milan
- Liggins Institute, University of Auckland, Auckland, New Zealand
- Food & Bio-Based Products Group, AgResearch, Palmerston North, New Zealand
- High-Value Nutrition, National Science Challenge, Auckland, New Zealand
| | - Marlena C Kruger
- School of Health Sciences, College of Health, Massey University, Palmerston North, New Zealand
- The Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Nicole C Roy
- High-Value Nutrition, National Science Challenge, Auckland, New Zealand
- The Riddet Institute, Massey University, Palmerston North, New Zealand
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Karl Fraser
- Food & Bio-Based Products Group, AgResearch, Palmerston North, New Zealand
- The Riddet Institute, Massey University, Palmerston North, New Zealand
| | - David Cameron-Smith
- Liggins Institute, University of Auckland, Auckland, New Zealand.
- The Riddet Institute, Massey University, Palmerston North, New Zealand.
- Colleges of Health, Medicine and Wellbeing, and Engineering, Science and Environment, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.
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Helleputte S, Yardley JE, Scott SN, Stautemas J, Jansseune L, Marlier J, De Backer T, Lapauw B, Calders P. Effects of postprandial exercise on blood glucose levels in adults with type 1 diabetes: a review. Diabetologia 2023:10.1007/s00125-023-05910-x. [PMID: 37014379 DOI: 10.1007/s00125-023-05910-x] [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] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/03/2023] [Indexed: 04/05/2023]
Abstract
People with type 1 diabetes experience challenges in managing blood glucose around exercise. Previous studies have examined glycaemic responses to different exercise modalities but paid little attention to participants' prandial state, although this is an important consideration and will enhance our understanding of the effects of exercise in order to improve blood glucose management around activity. This review summarises available data on the glycaemic effects of postprandial exercise (i.e. exercise within 2 h after a meal) in people with type 1 diabetes. Using a search strategy on electronic databases, literature was screened until November 2022 to identify clinical trials evaluating acute (during exercise), subacute (≤2 h after exercise) and late (>2 h to ≤24 h after exercise) effects of postprandial exercise in adults with type 1 diabetes. Studies were systematically organised and assessed by exercise modality: (1) walking exercise (WALK); (2) continuous exercise of moderate intensity (CONT MOD); (3) continuous exercise of high intensity (CONT HIGH); and (4) interval training (intermittent high-intensity exercise [IHE] or high-intensity interval training [HIIT]). Primary outcomes were blood glucose change and hypoglycaemia occurrence during and after exercise. All study details and results per outcome were listed in an evidence table. Twenty eligible articles were included: two included WALK sessions, eight included CONT MOD, seven included CONT HIGH, three included IHE and two included HIIT. All exercise modalities caused consistent acute glycaemic declines, with the largest effect size for CONT HIGH and the smallest for HIIT, depending on the duration and intensity of the exercise bout. Pre-exercise mealtime insulin reductions created higher starting blood glucose levels, thereby protecting against hypoglycaemia, in spite of similar declines in blood glucose during activity between the different insulin reduction strategies. Nocturnal hypoglycaemia occurred after higher intensity postprandial exercise, a risk that could be diminished by a post-exercise snack with concomitant bolus insulin reduction. Research on the optimal timing of postprandial exercise is inconclusive. In summary, individuals with type 1 diabetes exercising postprandially should substantially reduce insulin with the pre-exercise meal to avoid exercise-induced hypoglycaemia, with the magnitude of the reduction depending on the exercise duration and intensity. Importantly, pre-exercise blood glucose and timing of exercise should be considered to avoid hyperglycaemia around exercise. To protect against late-onset hypoglycaemia, a post-exercise meal with insulin adjustments might be advisable, especially for exercise in the evening or with a high-intensity component.
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Affiliation(s)
- Simon Helleputte
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
- Fonds Wetenschappelijk Onderzoek (FWO) Vlaanderen, Flanders, Belgium.
| | - Jane E Yardley
- Augustana Faculty, University of Alberta, Edmonton, Alberta, Canada
- Alberta Diabetes Institute, Edmonton, Alberta, Canada
- Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, Alberta, Canada
- Women and Children's Health Research Institute, Edmonton, Alberta, Canada
| | - Sam N Scott
- Team Novo Nordisk Professional Cycling Team, Atlanta, GA, USA
| | - Jan Stautemas
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Laura Jansseune
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Joke Marlier
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Tine De Backer
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- Department of Cardiology, Ghent University Hospital, Ghent, Belgium
| | - Bruno Lapauw
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Patrick Calders
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
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Paulus LP, Wagner AL, Buehler A, Raming R, Jüngert J, Simon D, Tascilar K, Schnell A, Günther J, Rother U, Lang W, Hoerning A, Schett G, Neurath MF, Woelfle J, Waldner MJ, Knieling F, Regensburger AP. Multispectral optoacoustic tomography of the human intestine - temporal precision and the influence of postprandial gastrointestinal blood flow. Photoacoustics 2023; 30:100457. [PMID: 36824387 PMCID: PMC9942118 DOI: 10.1016/j.pacs.2023.100457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Multispectral optoacoustic tomography (MSOT) holds great promise as a non-invasive diagnostic tool for inflammatory bowel diseases. Yet, reliability and the impact of physiological processes during fasting and after food intake on optoacoustic signals have not been studied. In the present investigator initiated trial (NCT05160077) the intestines of ten healthy subjects were examined by MSOT at eight timepoints on two days, one fasting and one after food intake. While within-timepoint and within-day reproducibility were good for single wavelength 800 nm and total hemoglobin (ICC 0.722-0.956), between-day reproducibility was inferior (ICC -0.137 to 0.438). However, temporal variability was smaller than variation between individuals (coefficients of variation 8.9%-33.7% vs. 17.0%-48.5%). After food intake and consecutive increased intestinal circulation, indicated by reduced resistance index of simultaneous Doppler ultrasound, optoacoustic signals did not alter significantly. In summary, this study demonstrates high reliability and temporal stability of MSOT for imaging the human intestine during fasting and after food intake.
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Affiliation(s)
- Lars-Philip Paulus
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Pediatric Experimental and Translational Imaging Laboratory (PETI-Lab), Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Alexandra L. Wagner
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Pediatric Experimental and Translational Imaging Laboratory (PETI-Lab), Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Adrian Buehler
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Pediatric Experimental and Translational Imaging Laboratory (PETI-Lab), Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Roman Raming
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Pediatric Experimental and Translational Imaging Laboratory (PETI-Lab), Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Jörg Jüngert
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - David Simon
- Department of Medicine 3 and German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Koray Tascilar
- Department of Medicine 3 and German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Alexander Schnell
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Josefine Günther
- Department of Vascular Surgery, University Hospital Erlangen, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Ulrich Rother
- Department of Vascular Surgery, University Hospital Erlangen, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Werner Lang
- Department of Vascular Surgery, University Hospital Erlangen, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - André Hoerning
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Georg Schett
- Department of Medicine 3 and German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Markus F. Neurath
- Department of Medicine 1 and German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Joachim Woelfle
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Maximilian J. Waldner
- Department of Medicine 1 and German Center Immunotherapy (DZI), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Ferdinand Knieling
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Pediatric Experimental and Translational Imaging Laboratory (PETI-Lab), Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Adrian P. Regensburger
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Pediatric Experimental and Translational Imaging Laboratory (PETI-Lab), Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
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20
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She Y, Wang K, Makarowski A, Mangat R, Tsai S, Willing BP, Proctor SD, Richard C. Low-fat dairy consumption improves intestinal immune function more than high-fat dairy in a diet-induced swine model of insulin resistance. Eur J Nutr 2023; 62:699-711. [PMID: 36197467 DOI: 10.1007/s00394-022-03013-8] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/22/2022] [Indexed: 11/04/2022]
Abstract
PURPOSE To understand the effects of consuming high-fat and low-fat dairy products on postprandial cardiometabolic risk factors and intestinal immune function, we used an established low birthweight (LBW) swine model of diet-induced insulin resistance. METHODS LBW piglets were randomized to consume one of the 3 experimental high fat diets and were fed for a total of 7 weeks: (1) Control high fat (LBW-CHF), (2) CHF diet supplemented with 3 servings of high-fat dairy (LBW-HFDairy) and (3) CHF diet supplemented with 3 servings of low-fat dairy (LBW-LFDairy). As comparison groups, normal birthweight (NBW) piglets were fed a CHF (NBW-CHF) or standard pig grower diet (NBW-Chow). At 11 weeks of age, all piglets underwent an established modified oral glucose and fat tolerance test. At 12 weeks of age, piglets were euthanized and ex vivo cytokine production by cells isolated from mesenteric lymph node (MLN) stimulated with mitogens was assessed. RESULTS Dairy consumption did not modulate postprandial plasma lipid, inflammatory markers and glucose concentrations. A lower production of IL-2 and TNF-α after pokeweed mitogen (PWM) stimulation was observed in LBW-CHF vs NBW-Chow (P < 0.05), suggesting impaired MLN T cell function. While feeding high-fat dairy had minimal effects, feeding low-fat dairy significantly improved the production of IL-2 and TNF-α after PWM stimulation (P < 0.05). CONCLUSIONS Irrespective of fat content, dairy had a neutral effect on postprandial cardiometabolic risk factors. Low-fat dairy products improved intestinal T cell function to a greater extent than high-fat dairy in this swine model of obesity and insulin resistance.
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Affiliation(s)
- Yongbo She
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- Metabolic and Cardiovascular Diseases Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Kun Wang
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- Metabolic and Cardiovascular Diseases Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Alexander Makarowski
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- Metabolic and Cardiovascular Diseases Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Rabban Mangat
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- Metabolic and Cardiovascular Diseases Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Sue Tsai
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Benjamin P Willing
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Spencer D Proctor
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- Metabolic and Cardiovascular Diseases Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Caroline Richard
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
- Metabolic and Cardiovascular Diseases Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
- Division of Human Nutrition, Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Science, 4-002G Li Ka Shing (LKS) Centre for Health Research Innovation, University of Alberta, Edmonton, AB, T6G 2E, Canada.
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21
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Sales SDS, Dionísio AP, Adriano LS, Melo BRCD, Abreu FAPD, Sampaio HADC, Silva IDCGD, Carioca AAF. Previous gut microbiota has an effect on postprandial insulin response after intervention with yacon syrup as a source of fructooligosaccharides: a randomized, crossover, double-blind clinical trial. Nutrition 2022; 109:111948. [PMID: 36736091 DOI: 10.1016/j.nut.2022.111948] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/07/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The use of prebiotics has an effect on postprandial glucose and insulin concentrations; however, the interaction between the previous profile of the intestinal microbiota and the effect of supplementation with prebiotics is not clear. Our objective was to evaluate the effect of previous intestinal microbiota profile on the postprandial insulin response to yacon syrup, used as a source of fructooligosaccharides (FOSs), in young women. The product presents high levels of FOS. METHODS In this double-blind, crossover, randomized clinical trial, 40 adult women were allocated to receive a breakfast containing 40 g of yacon syrup (14 g FOS, intervention A) or a breakfast containing 40 g of placebo (intervention B). On each intervention day, after 12 h of fasting, an aliquot of blood was collected for insulin analysis at 0, 15, 30, 45, 60, 90, and 120 min. The fecal sample was collected before the beginning of the interventions, and the DNA was extracted and quantified, with subsequent amplification of the 16S region, next-generation sequencing, and analysis of sequencing data. RESULTS The glucose and insulin concentrations were reduced after ingestion of yacon syrup compared with placebo, specifically at the 30 min to insulin. After the receiver operating characteristic analysis, six volunteers who did not respond to the yacon consumption intervention were identified. The abundance of the phylum Actinobacteria (P = 0.021) and the order Bifidobacteriales (P = 0.013) were positively associated with better insulin response. Other main phyla were not associated with intervention response. CONCLUSIONS The previous profile of the intestinal microbiota has an effect on the postprandial insulin response to FOSs, mainly in the phylum Actinobacteria and Bifidobacteriales order.
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Affiliation(s)
- Suiani da Silva Sales
- Postgraduate Program in Nutrition and Health, State University of Ceará, Fortaleza, Brazil
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22
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Schvezov N, Wilson RW, Urbina MA. Oxidative damages and antioxidant defences after feeding a single meal in rainbow trout. J Comp Physiol B 2022. [PMID: 35384470 DOI: 10.1007/s00360-022-01435-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/25/2022] [Accepted: 03/13/2022] [Indexed: 10/18/2022]
Abstract
Feeding and digestion are metabolically demanding causing a rise on metabolic rate called Specific Dynamic Action (SDA). Although SDA has been vastly reported in fish, its potential consequences on the oxidative-antioxidant balance has not been evaluated to date in fish, a model with a long alkaline tide associated with feeding as well. Using rainbow trout (Oncorhynchus mykiss) as a model species, the aims of the present study were to: (1) assess potential oxidative damages and changes in oxidative defences after feeding on a single meal, and (2) identify the timescale of such changes over a 96 h post-feeding period. Oxidative damage in proteins and lipids and the activities of four enzymatic antioxidant defences: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione-S-transferase (GST) were measured in gill, stomach, intestine and liver. DNA damage was measured in red blood cells. Fish were sampled before and after 1.5, 6, 24, 48, 72 and 96 h of ingestion of a 3% body mass ration. Trends of post-prandial damage were present in all tissues, but only protein oxidation varied significatively during digestion in the stomach. The intestine and stomach presented the highest enzymatic activities, likely due to the high metabolic action that these tissues have during digestion, with peaks during post-feeding: at 24 h of SOD in stomach and at 48 h of CAT in intestine. Observed GPx peaks during post-feeding in gills are likely due to the exacerbated demands for ion fluxes and/or oxygen during feeding. The differential response of the antioxidant system observed in tissues of rainbow trout during digestion indicates a coordinated and tissue-specific antioxidant defence.
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Kim JY, Lee KJ, Kang J, Kim BJ, Han MK, Kang K, Park JM, Park TH, Park HK, Cho YJ, Hong KS, Lee KB, Jang MS, Lee JS, Lee J, Bae HJ. Fasting and Non-Fasting Triglycerides in Patients With Acute Ischemic Stroke. J Korean Med Sci 2022; 37:e100. [PMID: 35380025 PMCID: PMC8980366 DOI: 10.3346/jkms.2022.37.e100] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 03/07/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Clinical implications of elevated fasting triglycerides (FTGs) and non-fasting triglycerides (NFTGs) in acute ischemic stroke (AIS) remain unknown. We aimed to elucidate the correlation and clinical significance of FTG and NFTG levels in AIS patients. METHODS Using a multicenter prospective stroke registry, we identified AIS patients hospitalized within 24 hours of onset with available NFTG results. The primary outcome was a composite of stroke recurrence, myocardial infarction, and all-cause mortality up to one year. RESULTS This study analyzed 2,176 patients. The prevalence of fasting and non-fasting hypertriglyceridemia was 11.5% and 24.6%, respectively. Multivariate analysis revealed that younger age, diabetes, higher body mass index and initial systolic blood pressure were independently associated with both fasting and non-fasting hypertriglyceridemia (all P < 0.05). Patients with higher quartiles of NFTG were more likely to be male, younger, ever-smokers, diabetic, and have family histories of premature coronary heart disease and stroke (all P < 0.05). Similar tendencies were observed for FTG. The composite outcome was not associated with FTG or NFTG quartiles. CONCLUSION The fasting and non-fasting hypertriglyceridemia were prevalent in AIS patients and showed similar clinical characteristics and outcomes. High FTG and NFTG levels were not associated with occurrence of subsequent clinical events up to one year.
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Affiliation(s)
- Jun Yup Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Keon-Joo Lee
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Jihoon Kang
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Beom Joon Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Moon-Ku Han
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Kyusik Kang
- Department of Neurology, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Jong-Moo Park
- Department of Neurology, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, Korea
| | - Tai Hwan Park
- Department of Neurology, Seoul Medical Center, Seoul, Korea
| | - Hong-Kyun Park
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Yong-Jin Cho
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Keun-Sik Hong
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Kyung Bok Lee
- Department of Neurology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Myung Suk Jang
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Korea
| | - Juneyoung Lee
- Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
| | - Hee-Joon Bae
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
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Cignarelli A, Ciavarella A, Barbaro M, Kounaki S, Di Trani A, Falcone VA, Quaranta VN, Natalicchio A, Laviola L, Resta O, Giorgino F, Perrini S. Postprandial glucose and HbA1c are associated with severity of obstructive sleep apnoea in non-diabetic obese subjects. J Endocrinol Invest 2021; 44:2741-2748. [PMID: 34173961 PMCID: PMC8572205 DOI: 10.1007/s40618-021-01602-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 05/22/2021] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Obstructive sleep apnoea (OSA) is an underdiagnosed condition frequently associated with glycaemic control impairment in patients with type 2 diabetes. AIM To assess the relationship between glycometabolic parameters and OSA in obese non-diabetic subjects. METHODS Ninety consecutive subjects (mean age 44.9 ± 12 years, mean BMI 42.1 ± 9 kg/m2) underwent polysomnography and a 2-h oral glucose tolerance test (OGTT). RESULTS OSA was identified in 75% of subjects, with a higher prevalence of males compared to the group of subjects without OSA (62% vs 32%, p = 0.02). Patients with OSA had comparable BMI (42.8 kg/m2 vs 39.4 kg/m2), a higher average HbA1c (5.8% vs 5.4%, p < 0.001), plasma glucose at 120 min during OGTT (2 h-PG; 123 mg/dl vs 97 mg/dl, p = 0.009) and diastolic blood pressure (81.1 mmHg vs 76.2 mmHg, p = 0.046) than obese subjects without OSA. HbA1c and 2 h-PG were found to be correlated with the apnoea-hypopnoea index (AHI; r = 0.35 and r = 0.42, respectively) and with percent of sleep time with oxyhaemoglobin saturation < 90% (ST90; r = 0.44 and r = 0.39, respectively). Further, in a linear regression model, ST90 and AHI were found to be the main determinants of 2 h-PG (β = 0.81, p < 0.01 and β = 0.75, p = 0.02, respectively) after controlling for age, sex, waist circumference, physical activity, and C-reactive protein. Similarly, ST90 and AHI persisted as independent determinants of HbA1c (β = 0.01, p = 0.01 and β = 0.01, p = 0.01, respectively). CONCLUSION Beyond the traditional clinical parameters, the presence of a normal-high value of 2 h-PG and HbA1c should raise suspicion of the presence of OSA in obese subjects.
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Affiliation(s)
- A Cignarelli
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - A Ciavarella
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - M Barbaro
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - S Kounaki
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - A Di Trani
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - V A Falcone
- Department of Basic Medical Sciences, Neurosciences and Sense Organs - Section of Respiratory Disease, University of Bari Aldo Moro, Bari, Italy
| | - V N Quaranta
- Department of Basic Medical Sciences, Neurosciences and Sense Organs - Section of Respiratory Disease, University of Bari Aldo Moro, Bari, Italy
| | - A Natalicchio
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - L Laviola
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - O Resta
- Department of Basic Medical Sciences, Neurosciences and Sense Organs - Section of Respiratory Disease, University of Bari Aldo Moro, Bari, Italy
| | - F Giorgino
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
| | - S Perrini
- Department of Emergency and Organ Transplantation - Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
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25
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Murray M, Selby-Pham S, Colton BL, Bennett L, Williamson G, Dordevic AL. Does timing of phytonutrient intake influence the suppression of postprandial oxidative stress? A systematic literature review. Redox Biol 2021; 46:102123. [PMID: 34488026 PMCID: PMC8426566 DOI: 10.1016/j.redox.2021.102123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/25/2021] [Accepted: 08/29/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Postprandial oxidative stress markers in blood are generated transiently from various tissues and cells following high-fat and/or high-carbohydrate (HFHC) meals, and may be suppressed by certain phytonutrients, such as polyphenols and carotenoids. However, the transient presence of phytonutrients in circulation suggests that timing of consumption, relative to the meal, could be important. This systematic review investigates the effect of timing of phytonutrient intake on blood markers of postprandial oxidative processes. METHOD EMBASE, Medline, Scopus and Web of Science were searched up to December 2020. Eligible studies met the criteria: 1) healthy human adults; 2) phytonutrient(s) consumed in solid form within 24 h of a HFHC meal; 3) postprandial measurements of oxidative stress or antioxidants in blood; and 4) controlled study design. Cohen's d effect sizes were calculated to compare studies. RESULTS Nine studies, involving 256 participants, were included. Phytonutrients were consumed either at the same time, 1 h before, or the day (>12 h) before a HFHC meal. Significant decreases in blood markers - plasma lipid hydroperoxides, plasma malondialdehyde, serum sNox2-dp, serum 8-iso-PGF2α, platelet p47phox phosphorylation, and Keap-1 and p47phox protein levels in mononuclear cells (MNCs) - were observed where the phytonutrient was consumed together with the challenge meal (n = 4). Lack of any effect on oxidative stress markers was observed where phytonutrients were consumed with (n = 1), 1 h before (n = 1), and the day before (n = 2) the HFHC meal. CONCLUSION Phytonutrients consumed with a HFHC meal significantly suppressed some markers of oxidative stress in blood. Although there were only a limited number of studies, it appears that suppression appeared effective at the time of peak phytonutrient concentration in plasma. However, further studies are required to confirm the observations and systematically optimise the effect of timing.
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Affiliation(s)
- Margaret Murray
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia; Department of Nutrition, Dietetics & Food, Monash University, Notting Hill, 3168, Victoria, Australia.
| | - Sophie Selby-Pham
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia.
| | - Beau-Luke Colton
- Department of Nutrition, Dietetics & Food, Monash University, Notting Hill, 3168, Victoria, Australia.
| | - Louise Bennett
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia.
| | - Gary Williamson
- Department of Nutrition, Dietetics & Food, Monash University, Notting Hill, 3168, Victoria, Australia.
| | - Aimee L Dordevic
- Department of Nutrition, Dietetics & Food, Monash University, Notting Hill, 3168, Victoria, Australia.
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da Mota Araujo HR, de Carvalho JE, Klein W, Vilela B, da Cruz AL. Patterns of energetic substrate modifications in response to feeding in boas, Boa constrictor (Serpentes, Boidae). Comp Biochem Physiol A Mol Integr Physiol 2022; 263:111073. [PMID: 34562624 DOI: 10.1016/j.cbpa.2021.111073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 12/25/2022]
Abstract
Ambush-foraging snakes that ingest large meals might undergo several months without eating when they use the internal reserves to support the energetic costs of living. Then, morphological and physiological processes might be orchestrated during the transition from fasting to the postprandial period to rapidly use the energetic stores while the metabolic rate is elevated in response to food intake. To understand the patterns of substrates deposition after feeding, we accessed the morphological and biochemical response in Boa constrictor snakes after two months of fasting and six days after feeding. We followed the plasma levels of glucose, total proteins, and total lipids, and we performed the stereological ultrastructural analysis of the liver and the proximal region of the intestine to quantify glycogen granules and lipid droplets. In the same tissues and stomach, we measured the activity of the enzyme fructose-1,6-biphosphatase (FBPase1) involved in the gluconeogenic pathway, and we measured pyruvate kinase (PK) and lactate dehydrogenase (LDH) enzymatic activities involved in the anaerobic pathway in the liver. Briefly, our results indicated an increase in boas' plasma glucose one day after meal intake compared to unfed snakes. The hepatic glycogen reserves were continuously restored within days after feeding. Also, the enzymes involved in the energetic pathways increased activity six days after feeding in the liver. These findings suggest a quick restoring pattern of energetic stores during the postprandial period.
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Delgadillo-Velázquez JA, Nambo-Venegas R, Patiño N, Meraz-Cruz N, Razo-Azamar M, Guevara-Cruz M, Fonseca M, Pale Montero LE, Ibarra-González I, Vela-Amieva M, Vadillo-Ortega F, Palacios-González B. Metabolic flexibility during normal pregnancy allows appropriate adaptation during gestation independently of BMI. Clin Nutr ESPEN 2021; 44:254-262. [PMID: 34330475 DOI: 10.1016/j.clnesp.2021.06.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 02/22/2021] [Accepted: 06/08/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND & AIMS Overweight and obesity in reproductive-age women hasten the development of insulin resistance and increase risk for deterioration of pregnancy metabolism. These pregnancy-associated metabolic changes are similar to those of the metabolic syndrome. Thus, some metabolic flexibility must allow appropriate adaptation to the metabolic load that pregnancy imposes. We evaluated metabolic flexibility during uncomplicated pregnancy in women with pre-gestational normal weight or overweight. METHODS In 20 women with singleton pregnancies, pre-pregnancy BMI was categorized as normal-weight (Nw) or overweight (Ow). The women were seen quarterly, and fasting and postprandial blood samples were collected at each visit. Indirect fasting and/postprandial calorimetry was performed to evaluate metabolic flexibility (Δrespiratory quotient (RQ) = RQpostprandial - RQfasting). RESULTS In the first trimester, metabolic flexibility was lower in the Ow group compared to the Nw group (0.031 ± 0.0131 vs 0.077 ± 0.018, respectively) without a statistically significant difference (p = 0.053). In the second trimester, the Ow group was significantly more flexible than the Nw group (0.190 ± 0.016 vs 0.077 ± 0.015, respectively (p = 0.004)). For the third trimester, the Ow and Nw groups did not differ in metabolic flexibility (0.074 ± 0.013 vs 0.087 ± 0.021, respectively) (p = 0.40). The most influential variables for metabolic flexibility during pregnancy were lactate, leptin, β-hydroxybutyrate, glycerol, aromatic amino acids, medium and long chain acylcarnitine's. CONCLUSIONS Our findings indicate that metabolic flexibility changes throughout pregnancy, independently of pre-pregnancy BMI. These changes maintain metabolic homeostasis between the mother and foetus, allowing for appropriate adjustments during pregnancy.
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Affiliation(s)
- Jaime A Delgadillo-Velázquez
- Unidad de Vinculación Científica de La Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Mexico City, Mexico; Facultad de Química, Universidad Nacional Autónoma de México, México City, Mexico
| | - Rafael Nambo-Venegas
- Laboratorio de Bioquímica de Enfermedades Crónicas, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Nayelli Patiño
- Unidad de Vinculación Científica de La Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Mexico City, Mexico; Escuela de Dietética y Nutrición Del ISSSTE, Mexico City, Mexico
| | - Noemí Meraz-Cruz
- Unidad de Vinculación Científica de La Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Melissa Razo-Azamar
- Unidad de Vinculación Científica de La Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Martha Guevara-Cruz
- Fisiología de La Nutrición, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - Mayali Fonseca
- Escuela de Dietética y Nutrición Del ISSSTE, Mexico City, Mexico
| | | | | | - Marcela Vela-Amieva
- Laboratorio de Errores Innatos Del Metabolismo, Instituto Nacional de Pediatría, Mexico City, Mexico
| | - Felipe Vadillo-Ortega
- Unidad de Vinculación Científica de La Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Berenice Palacios-González
- Unidad de Vinculación Científica de La Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Mexico City, Mexico.
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Shokraei S, Khandouzi N, Sina Z, Nasrollahzadeh J. The acute effect of incorporating lettuce or watercress into a moderately high-fat meal on postprandial lipid, glycemic response, and plasma inflammatory cytokines in healthy young men: a randomized crossover trial. Lipids Health Dis 2021; 20:66. [PMID: 34261489 PMCID: PMC8281573 DOI: 10.1186/s12944-021-01487-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/07/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Postprandial responses to food mostly depend on the composition of the meal and the consumption of vegetables may modulate this postprandial state. In this study, the effects of lettuce or watercress consumption with a moderately high-fat meal (40% kcal from fat) on postprandial lipemia, glycemia, and inflammatory cytokines were determined in healthy men. METHODS This randomized, 3-arm, crossover study was conducted in sixteen healthy young men with a mean ± SEM age and body mass index (in kg/m2) of 22.8 ± 0.5 years old and 23.7 ± 1.16, respectively. Lettuce and watercress were added to the test meal in portions of 100 g and cellulose was added to the control meal. Thereafter, blood samples were collected by passing 0, 1, 2, 3, and 4 h for analysis. The postprandial response was measured in plasma glucose, triglycerides (TG), total cholesterol, high-density-lipoproteins cholesterol (HDL-C), and low-density-lipoproteins cholesterol (LDL-C), as the area under the postprandial curve (AUC). Moreover, plasma tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were determined once before and once 4 h after the meal's consumption. RESULTS The 0-4-h AUCs for glucose (385.7, 361.9, and 382.3 mg/dL for the control, lettuce, and watercress meals, respectively) were calculated to be lower when meal was consumed with lettuce compared to the control (P < 0.05) and watercress (P < 0.01) meals. The maximum values of insulin were obtained as 43.8 ± 18.8, 33.5 ± 19.5, and 42.8 ± 17.7 μIU/mL for the control, lettuce, and watercress meals, respectively. As well, the lettuce-containing meal more reduced the AUC for insulin compared with the control (P < 0.05), but not watercress. Notably, plasma TG, total cholesterol, HDL-C, and LDL-C had no significant differences among the meals. Moreover, the levels of plasma IL-6 and TNF-α did not differ among the meals. CONCLUSION In this study on healthy men, the addition of lettuce to a moderately high-fat meal delayed the postprandial glycemic response. However, the effect of the consumption of these vegetables on postprandial responses in subjects with cardiometabolic risk factors remains to be elucidated yet. This clinical trial was registered at the Iran Clinical Trials Registration Office (IRCT) on March 3, 2018, with an ID of IRCT20160702028742N4 ( https://www.irct.ir/user/trial/23233/view ).
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Affiliation(s)
- Sahar Shokraei
- Department of Clinical Nutrition & Dietetics, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, 46, Hafezi St., Farahzadi Blvd., Shahrak Qods, P.O.Box: 19395-4741, Tehran, Iran
| | - Nafiseh Khandouzi
- Department of Clinical Nutrition & Dietetics, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, 46, Hafezi St., Farahzadi Blvd., Shahrak Qods, P.O.Box: 19395-4741, Tehran, Iran
| | - Zahra Sina
- Department of Clinical Nutrition & Dietetics, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, 46, Hafezi St., Farahzadi Blvd., Shahrak Qods, P.O.Box: 19395-4741, Tehran, Iran
| | - Javad Nasrollahzadeh
- Department of Clinical Nutrition & Dietetics, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, 46, Hafezi St., Farahzadi Blvd., Shahrak Qods, P.O.Box: 19395-4741, Tehran, Iran.
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Herpich C, Haß U, Kochlik B, Franz K, Laeger T, Klaus S, Bosy-Westphal A, Norman K. Postprandial dynamics and response of fibroblast growth factor 21 in older adults. Clin Nutr 2021; 40:3765-3771. [PMID: 34130022 DOI: 10.1016/j.clnu.2021.04.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 03/31/2021] [Revised: 04/15/2021] [Accepted: 04/20/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND & AIMS Fibroblast growth factor 21 (FGF21) plays a pivotal role in glucose and lipid metabolism and has been proposed as a longevity hormone. However, elevated plasma FGF21 concentrations are paradoxically associated with mortality in higher age and little is known about the postprandial regulation of FGF21 in older adults. In this parallel group study, we investigated postprandial FGF21 dynamics and response in older (65-85 years) compared to younger (18-35 years) adults following test meals with varying macronutrient composition. METHODS Participants (n = 60 older; n = 60 younger) were randomized to one of four test meals: dextrose, high carbohydrate (HC), high fat (HF) or high protein (HP). Blood was drawn before and 15, 30, 60, 120, 240 min after meal ingestion. Postprandial dynamics were evaluated using repeated measures ANCOVA. FGF21 response was assessed by incremental area under the curve. RESULTS Fasting FGF21 concentrations were significantly higher in older adults. FGF21 dynamics were affected by test meal (p < 0.001) and age (p = 0.013), when adjusted for BMI and fasting FGF21. Postprandial FGF21 concentrations steadily declined over 240 min in both age groups after HF and HP, but not after dextrose or HC ingestion. At 240 min, FGF21 concentrations were significantly higher in older than in younger adults following dextrose (133 pg/mL, 95%CI: 103, 172 versus 91.2 pg/mL, 95%CI: 70.4, 118; p = 0.044), HC (109 pg/mL, 95%CI: 85.1, 141 versus 70.3 pg/mL, 95%CI: 55.2, 89.6; p = 0.014) and HP ingestion (45.4 pg/mL, 95%CI: 34.4, 59.9 versus 27.9 pg/mL 95%CI: 20.9, 37.1; p = 0.018). FGF21 dynamics and response to HF were similar for both age groups. CONCLUSIONS The age-specific differences in postprandial FGF21 dynamics and response in healthy adults, potentially explain higher FGF21 concentrations in older age. Furthermore, there appears to be a significant impact of acute and recent protein intake on FGF21 secretion.
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Affiliation(s)
- Catrin Herpich
- German Institute of Human Nutrition, Potsdam-Rehbrücke, Department of Nutrition and Gerontology, Nuthetal, Germany; University of Potsdam, Institute of Nutritional Science, Potsdam, Germany
| | - Ulrike Haß
- German Institute of Human Nutrition, Potsdam-Rehbrücke, Department of Nutrition and Gerontology, Nuthetal, Germany; University of Potsdam, Institute of Nutritional Science, Potsdam, Germany
| | - Bastian Kochlik
- German Institute of Human Nutrition, Potsdam-Rehbrücke, Department of Nutrition and Gerontology, Nuthetal, Germany
| | - Kristina Franz
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Department of Geriatrics, Berlin, Germany
| | - Thomas Laeger
- University of Potsdam, Institute of Nutritional Science, Department of Physiology and Pathophysiology of Nutrition Potsdam, Germany
| | - Susanne Klaus
- University of Potsdam, Institute of Nutritional Science, Potsdam, Germany; German Institute of Human Nutrition, Potsdam-Rehbrücke, Department of Physiology of Energy Metabolism, Nuthetal, Germany
| | - Anja Bosy-Westphal
- Institut für Humanernährung und Lebensmittelkunde, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Kristina Norman
- German Institute of Human Nutrition, Potsdam-Rehbrücke, Department of Nutrition and Gerontology, Nuthetal, Germany; University of Potsdam, Institute of Nutritional Science, Potsdam, Germany; Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Department of Geriatrics, Berlin, Germany.
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Abrahamsson N. Postprandial Normoglycemic Hypokalemia-an Overlooked Complication to Gastric Bypass Surgery? Obes Surg 2021; 31:3369-71. [PMID: 33783679 DOI: 10.1007/s11695-021-05356-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/03/2021] [Accepted: 03/16/2021] [Indexed: 11/12/2022]
Abstract
Obesity is one of the major health problems of the world, and one of the most common surgical treatments is the Roux-en-Y gastric bypass surgery. This can however lead to problems with postprandial hypoglycemia, but sometimes, the meal test does not render any signs of hypoglycemia. Here, 3 cases are presented with postprandial normoglycemic hypokalemia. ![]()
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Dixon MD, Koemel NA, Sciarrillo CM, Lucas EA, Jenkins NDM, Emerson SR. The reliability of an abbreviated fat tolerance test: A comparison to the oral glucose tolerance test. Clin Nutr ESPEN 2021; 43:428-435. [PMID: 34024551 DOI: 10.1016/j.clnesp.2021.03.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/12/2020] [Revised: 03/03/2021] [Accepted: 03/09/2021] [Indexed: 01/21/2023]
Abstract
BACKGROUND & AIMS Postprandial lipemia (PPL) is predictive of cardiovascular disease risk, but the current method for assessing PPL is a burdensome process. Recently, the validity of an abbreviated fat tolerance test (AFTT) has been demonstrated. As a continuation of this research, the purpose of this study was to determine the reliability of the AFTT and compare it to the reliability of the oral glucose tolerance test (OGTT). METHODS In this randomized crossover trial, 20 healthy adults (10 male and 10 female) completed 2 AFTTs and 2 OGTTs, each separated by a 1-week washout. For the AFTT, triglycerides (TG) were measured at baseline and 4 h post-consumption of a high-fat meal, during which time participants were able to leave the lab. For the OGTT, we measured blood glucose at baseline and 2 h post-consumption of a 75-g pure glucose solution, and participants remained in the lab. To determine reliability, we calculated within-subject coefficient of variation (WCV) and intraclass correlation coefficient (ICC). RESULTS The mean 4-h TG WCV for the AFTT was 12.6%, while the mean 2-h glucose WCV for the OGTT was 10.5%. ICC values for 4-h TG and TG change were 0.79 and 0.71, respectively, while ICC values for 2-h glucose and glucose change were 0.66 and 0.56, respectively. CONCLUSIONS Based on WCV and ICC, the TG response to an AFTT was similarly reliable to the glucose response to an OGTT in our sample of healthy adults, supporting the AFTT's potential as a standard clinical test for determining PPL. However, reliability of the AFTT needs to be further tested in individuals at greater risk for cardiometabolic disease.
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Affiliation(s)
- Madison D Dixon
- Department of Nutritional Sciences, Oklahoma State University, 301 Human Sciences, Oklahoma State University, Stillwater, OK 74078, Stillwater, OK, USA.
| | - Nicholas A Koemel
- Department of Nutritional Sciences, Oklahoma State University, 301 Human Sciences, Oklahoma State University, Stillwater, OK 74078, Stillwater, OK, USA.
| | - Christina M Sciarrillo
- Department of Nutritional Sciences, Oklahoma State University, 301 Human Sciences, Oklahoma State University, Stillwater, OK 74078, Stillwater, OK, USA.
| | - Edralin A Lucas
- Department of Nutritional Sciences, Oklahoma State University, 301 Human Sciences, Oklahoma State University, Stillwater, OK 74078, Stillwater, OK, USA.
| | - Nathaniel D M Jenkins
- Department of Health and Human Physiology, University of Iowa, E102 Field House, University of Iowa, Iowa City, Ioa 52242, Iowa City, IA, USA.
| | - Sam R Emerson
- Department of Nutritional Sciences, Oklahoma State University, 301 Human Sciences, Oklahoma State University, Stillwater, OK 74078, Stillwater, OK, USA.
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van Rooijen MA, Plat J, Zock PL, Blom WAM, Mensink RP. Effects of two consecutive mixed meals high in palmitic acid or stearic acid on 8-h postprandial lipemia and glycemia in healthy-weight and overweight men and postmenopausal women: a randomized controlled trial. Eur J Nutr 2021; 60:3659-3667. [PMID: 33733339 PMCID: PMC8437914 DOI: 10.1007/s00394-021-02530-2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/26/2021] [Indexed: 12/02/2022]
Abstract
Purpose Palmitic and stearic acids have different effects on fasting serum lipoproteins. However, the effects on postprandial lipemia and glycemia are less clear. Also, the effects of a second meal may differ from those of the first meal. Therefore, we studied the effects of two consecutive mixed meals high in palmitic acid- or stearic acid-rich fat blends on postprandial lipemia and glycemia. Methods In a randomized, crossover study, 32 participants followed 4-week diets rich in palmitic or stearic acids, At the end of each dietary period, participants consumed two consecutive meals each containing ± 50 g of the corresponding fat blend. Results Postprandial concentrations of triacylglycerol (diet-effect: − 0.18 mmol/L; p = 0.001) and apolipoprotein B48 (diet-effect: − 0.68 mg/L; p = 0.002) were lower after stearic-acid than after palmitic-acid intake. Consequently, total (iAUC0–8 h) and first meal (iAUC0–4 h) responses were lower after stearic-acid intake (p ≤ 0.01). Second meal responses (iAUC4–8 h) were not different. Postprandial changes between the diets in non-esterified fatty acids (NEFA) and C-peptide differed significantly over time (p < 0.001 and p = 0.020 for diet*time effects, respectively), while those for glucose and insulin did not. The dAUC0–8 h, dAUC0–4 h, and dAUC4–8 h for NEFA were larger after stearic-acid intake (p ≤ 0.05). No differences were observed in the iAUCs of C-peptide, glucose, and insulin. However, second meal responses for glucose and insulin (iAUC4–8 h) tended to be lower after stearic-acid intake (p < 0.10). Conclusion Consumption of the stearic acid-rich meals lowered postprandial lipemia as compared with palmitic acid. After the second stearic acid-rich meal, concentrations of C-peptide peaked earlier and those of NEFA decreased more. Clinical trial registry This trial was registered at clinicaltrials.gov as NCT02835651 on July 18, 2016. Supplementary Information The online version contains supplementary material available at 10.1007/s00394-021-02530-2.
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Affiliation(s)
- Merel A van Rooijen
- Department of Nutrition and Movement Sciences, NUTRIM (School of Nutrition and Translational Research in Metabolism), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jogchum Plat
- Department of Nutrition and Movement Sciences, NUTRIM (School of Nutrition and Translational Research in Metabolism), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Peter L Zock
- Unilever Research and Development, Wageningen, The Netherlands
| | - Wendy A M Blom
- Unilever Research and Development, Wageningen, The Netherlands
| | - Ronald P Mensink
- Department of Nutrition and Movement Sciences, NUTRIM (School of Nutrition and Translational Research in Metabolism), Maastricht University Medical Center, Maastricht, The Netherlands.
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Crossley DA, Stieglitz JD, Benetti DD, Grosell M. The effects of acute temperature change and digestive status on in situ cardiac function in mahi-mahi (Coryphaena hippurus). Comp Biochem Physiol A Mol Integr Physiol 2021; 255:110915. [PMID: 33621645 DOI: 10.1016/j.cbpa.2021.110915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/28/2020] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 12/25/2022]
Abstract
In this study, we investigated the effect of acute increases in temperature on cardiovascular function of mahi-mahi (Coryphaena hippurus). We also describe, for the first time, an artery that supplies the gastrointestinal tract that originates from the fourth branchial artery. We used vascular casting to verify the anatomical location of this unique celiaco-mesenteric artery. We predicted that blood flow in this vessel would be correlated with the digestive state of the animal. Increasing water temperature from 25.0 to 30.5 °C resulted in a linear increase in heart rate (fH) from 165 ± 4 beats∙min-1to 232 ± 7 beats∙min-1. Over this temperature range, fH strongly correlated with water temperature (R2 = 0.79). At 31 °C fH no longer correlated with water temperature, and at 34 °C fH had dropped to 114 ± 19 beats∙min-1. Furthermore, we found that mahi are capable of maintaining constant cardiac output over a temperature range from 25 to 31 °C. Cardiac function appeared to be compromised at temperatures >31 °C. In fed anesthetized fish, blood flow was pulsatile in the celiaco-mesenteric artery and was not in fasted fish. In fed fish, blood flow in the left celiaco-mesenteric artery was 1.99 ± 0.78 ml·min-1·kg-1 compared to the total cardiac output of 168.6 ± 12.7 ml·min-1·kg-1. The data suggest that mahi can differentially regulate gastric blood flow based on feeding state, which may explain the high digestive efficiency and very high growth rates of these pelagic predators.
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Affiliation(s)
- Dane A Crossley
- Department of Biological Sciences, University of North Texas, 1155 Union Circle, Denton, TX 76203, United States.
| | - John D Stieglitz
- Department of Marine Ecosystems and Society, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149-1098, United States
| | - Daniel D Benetti
- Department of Marine Ecosystems and Society, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149-1098, United States
| | - Martin Grosell
- Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149-1098, United States
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Clark JL, Taylor CG, Zahradka P. Black beans and red kidney beans induce positive postprandial vascular responses in healthy adults: A pilot randomized cross-over study. Nutr Metab Cardiovasc Dis 2021; 31:216-226. [PMID: 32917495 DOI: 10.1016/j.numecd.2020.07.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/15/2020] [Accepted: 07/25/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND AND AIMS Consuming pulses (dry beans, dry peas, chickpeas, lentils) over several weeks can improve vascular function and decrease cardiovascular disease risk; however, it is unknown whether pulses can modulate postprandial vascular responses. The objective of this study was to compare different bean varieties (black, navy, pinto, red kidney) and white rice for their acute postprandial effects on vascular and metabolic responses in healthy individuals. METHODS AND RESULTS The study was designed as a single-blinded, randomized crossover trial with a minimum 6 days between consumption of the food articles. Vascular tone (primary endpoint), haemodynamics and serum biochemistry (secondary endpoints) were measured in 8 healthy adults before and at 1, 2, and 6 h after eating ¾ cup of beans or rice. Blood pressure and pulse wave velocity (PWV) were lower at 2 h following red kidney bean and pinto bean consumption compared to rice and navy bean, respectively (p < 0.05). There was greater vasorelaxation 6 h following consumption of darker-coloured beans, as shown by decreased vascular tone: PWV was lower after consuming black bean compared to pinto bean, augmentation pressure was lower after consuming black bean compared to rice and pinto bean, and wave reflection magnitude was lower after consuming red kidney bean and black bean compared to rice, navy bean, and pinto bean (p < 0.05). LDL-cholesterol concentrations were lower 6 h after black bean consumption compared to rice (p < 0.05). CONCLUSION Overall, red kidney and black beans, the darker-coloured beans, elicited a positive effect on the tensile properties of blood vessels, and this acute response may provide insight for how pulses modify vascular function.
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Affiliation(s)
- Jaime L Clark
- Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, R2H 2A6, Canada.
| | - Carla G Taylor
- Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, R2H 2A6, Canada; Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0T5, Canada.
| | - Peter Zahradka
- Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, R2H 2A6, Canada; Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0T5, Canada.
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Parry SA, Rosqvist F, Peters S, Young RK, Cornfield T, Dyson P, Hodson L. The influence of nutritional state on the fatty acid composition of circulating lipid fractions: implications for their use as biomarkers of dietary fat intake. Ups J Med Sci 2021; 126:7649. [PMID: 34471486 PMCID: PMC8384057 DOI: 10.48101/ujms.v126.7649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/16/2021] [Accepted: 05/11/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The fatty acid (FA) composition of blood can be used as an objective biomarker of dietary FA intake. It remains unclear how the nutritional state influences the FA composition of plasma lipid fractions, and thus their usefulness as biomarkers in a non-fasted state. OBJECTIVES To investigate the associations between palmitate, oleate and linoleate in plasma lipid fractions and self-reported dietary FA intake, and assess the influence of meal consumption on the relative abundance of these FA in plasma lipid fractions (i.e. triglyceride [TG], phospholipids [PLs] and cholesterol esters [CEs]). DESIGN Analysis was performed in plasma samples collected from 49 (34 males and 15 females) participants aged 26-57 years with a body mass index (BMI) between 21.6 and 34.2 kg/m2, all of whom had participated in multiple study visits, thus a pooled cohort of 98 data sets was available for analysis. A subset (n = 25) had undergone nutritional interventions and was therefore used to investigate the relationship between the FA composition of plasma lipid fractions and dietary fat intake. RESULTS Significant (P < 0.05) positive associations were observed between dietary polyunsaturated fat and linoleate abundance in plasma CE. When investigating the influence of meal consumption on postprandial FA composition, we found plasma TG palmitate significantly (P < 0.05) decreased across the postprandial period, whereas oleate and linoleate increased. A similar pattern was observed in plasma PL, whereas linoleate abundance decreased in the plasma CE. CONCLUSION Our data demonstrate that the FA composition of plasma CE may be the lipid fraction to utilise as an objective biomarker when investigating recent (i.e. previous weeks-months) dietary FA intakes. In addition, we show that the consumption of a high-fat meal influences the FA composition of plasma TG, PL and CE over the course of the postprandial period, and therefore, suggest that fasting blood samples should be utilised when using FA composition as a biomarker of dietary FA intake.
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Affiliation(s)
- Sion A. Parry
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
| | - Fredrik Rosqvist
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Sarah Peters
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
| | - Rebecca K. Young
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
| | - Thomas Cornfield
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
| | - Pamela Dyson
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
- National Institute for Health Research Oxford, Biomedical Research Centre, Oxford University, Hospital Trusts, Oxford, United Kingdom
| | - Leanne Hodson
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, United Kingdom
- National Institute for Health Research Oxford, Biomedical Research Centre, Oxford University, Hospital Trusts, Oxford, United Kingdom
- CONTACT Leanne Hodson,
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Gu C, Wang N, Ren P, Wu X, Pang B, Zhang S, Hou X, Xu D, Yuan Y, Liu G. Association between postprandial lipoprotein subclasses and Framingham cardiovascular disease risk stratification. Clin Biochem 2020; 89:51-57. [PMID: 33359967 DOI: 10.1016/j.clinbiochem.2020.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/13/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To determine the ability of postprandial lipoprotein subclass concentrations to stratify patients with respect to their risk for cardiovascular disease (CVD). METHODS Using the Framingham cardiovascular disease risk score (FRS) algorithm, a total of 112 consecutive patients referred for community health screening were stratified into two groups: (a) low-risk (FRS < 10%) and (b) intermediate/high-risk (FRS ≥ 10%). Serum lipoprotein subclass concentrations were determined by Vertical Auto Profile (VAP-II). RESULTS Fasting and postprandial levels of LDL4, HDL2, VLDL1 + 2, VLDL3, and RLP, as well as fasting levels of ApoB and postprandial levels of LDL3 and IDL1, were significantly different in the intermediate/high risk FRS group vs. the low-risk group (P < 0.05). Correlations between Framingham CVD risk and LDL3, LDL4, IDL1, VLDL1 + 2, VLDL3, RLP, and ApoB were positive while negative for HDL2 in both the fasting and postprandial states. Intermediate/high risk for CVD was shown to be significantly associated with both fasting and postprandial levels of VLDL1 + 2 and RLP, as well as with postprandial LDL4 and VLDL3, as determined using forward conditional logistic regression analysis. Postprandial levels of VLDL1 + 2 were better at identifying patients in the intermediate/high-risk FRS group than fasting levels, although the differences were not significant due to overlapping reference intervals. In addition, the association between RLP and VLDL subclasses relative to Framingham CVD risk increased significantly in the postprandial state (ΔR2 = 0.023; ΔF = 7.178; ΔP = 0.025) but not in the fasting state. CONCLUSIONS The use of postprandial lipoprotein subclass concentrations is not inferior to the use of fasting levels in identifying intermediate/high-risk FRS individuals. In addition, changes in RLP and VLDL subclass concentrations in fasting vs. postprandial states may reveal lipid metabolic mechanisms associated with CVD.
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Affiliation(s)
- Chun Gu
- Department of Laboratory, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Na Wang
- Department of Laboratory, Southern District of Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Peng Ren
- Department of Laboratory, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Xuemei Wu
- Department of Laboratory, Southern District of Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Bo Pang
- Department of Laboratory, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Shuying Zhang
- Department of Laboratory, Southern District of Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Xueyun Hou
- Department of Laboratory, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Dan Xu
- Department of Laboratory, Southern District of Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China
| | - Yuliang Yuan
- Department of Laboratory, Southern District of Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China.
| | - Guijian Liu
- Department of Laboratory, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, China.
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Wheeler MJ, Green DJ, Cerin E, Ellis KA, Heinonen I, Lewis J, Naylor LH, Cohen N, Larsen R, Dempsey PC, Kingwell BA, Owen N, Dunstan DW. Combined effects of continuous exercise and intermittent active interruptions to prolonged sitting on postprandial glucose, insulin, and triglycerides in adults with obesity: a randomized crossover trial. Int J Behav Nutr Phys Act 2020; 17:152. [PMID: 33308235 PMCID: PMC7734727 DOI: 10.1186/s12966-020-01057-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Postprandial glucose, insulin, and triglyceride metabolism is impaired by prolonged sitting, but enhanced by exercise. The aim of this study was to assess the effects of a continuous exercise bout with and without intermittent active interruptions to prolonged sitting on postprandial glucose, insulin, and triglycerides. METHODS Sedentary adults who were overweight to obese (n = 67; mean age 67 yr SD ± 7; BMI 31.2 kg∙m- 2 SD ± 4.1), completed three conditions: SIT: uninterrupted sitting (8-h, control); EX+SIT: sitting (1-h), moderate-intensity walking (30-min), uninterrupted sitting (6.5-h); EX+BR: sitting (1-h), moderate-intensity walking (30- min), sitting interrupted every 30-min with 3-min of light-intensity walking (6.5 h). Participants consumed standardized breakfast and lunch meals and blood was sampled at 13 time-points. RESULTS When compared to SIT, EX+SIT increased total area under the curve (tAUC) for glucose by 2% [0.1-4.1%] and EX+BR by 3% [0.6-4.7%] (all p < 0.05). Compared to SIT, EX+SIT reduced insulin and insulin:glucose ratio tAUC by 18% [11-22%] and 21% [8-33%], respectively; and EX+BR reduced values by 25% [19-31%] and 28% [15-38%], respectively (all p < 0.001 vs SIT, all p < 0.05 EX+SIT-vs-EX+BR). Compared to SIT, EX+BR reduced triglyceride tAUC by 6% [1-10%] (p = 0.01 vs SIT), and compared to EX+SIT, EX+BR reduced this value by 5% [0.1-8.8%] (p = 0.047 vs EX+SIT). The magnitude of reduction in insulin tAUC from SIT-to-EX+BR was greater in those with increased basal insulin resistance. No reduction in triglyceride tAUC from SIT-to-EX+BR was apparent in those with high fasting triglycerides. CONCLUSIONS Additional reductions in postprandial insulin-glucose dynamics and triglycerides may be achieved by combining exercise with breaks in sitting. Relative to uninterrupted sitting, this strategy may reduce postprandial insulin more in those with high basal insulin resistance, but those with high fasting triglycerides may be resistant to such intervention-induced reductions in triglycerides. TRIAL REGISTRATION Australia New Zealand Clinical Trials Registry ( ACTRN12614000737639 ).
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Affiliation(s)
- Michael J Wheeler
- Cardiovascular Research Group, School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia.
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia.
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia.
| | - Daniel J Green
- Cardiovascular Research Group, School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia
| | - Ester Cerin
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
- School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Kathryn A Ellis
- Department of Psychiatry, University of Melbourne, Parkville, VIC, Australia
| | - Ilkka Heinonen
- Cardiovascular Research Group, School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia
- Turku PET Centre, University of Turku, Turku, Finland
- Rydberg Laboratory of Applied Sciences, ETN, Halmstad University, Halmstad, Sweden
| | - Jaye Lewis
- Cardiovascular Research Group, School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia
| | - Louise H Naylor
- Cardiovascular Research Group, School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia
| | - Neale Cohen
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
| | - Robyn Larsen
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
| | - Paddy C Dempsey
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
- Diabetes Research Centre, University of Leicester, Leicester General Hospital, Leicester, UK
| | - Bronwyn A Kingwell
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
| | - Neville Owen
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
- Centre for Urban Transitions, Swinburne University of Technology, Hawthorn, Australia
| | - David W Dunstan
- Cardiovascular Research Group, School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia
- Baker Heart and Diabetes Institute, 99 Commercial Rd, Melbourne, Victoria, 3004, Australia
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
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Zembroski AS, Buhman KK, Aryal UK. Proteome and phosphoproteome characterization of liver in the postprandial state from diet-induced obese and lean mice. J Proteomics 2020; 232:104072. [PMID: 33309929 DOI: 10.1016/j.jprot.2020.104072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/30/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023]
Abstract
A metabolic consequence of obesity is hepatosteatosis, which can develop into more serious diseases in the non-alcoholic fatty liver disease (NAFLD) spectrum. The goal of this study was to identify the protein signature of liver in the postprandial state in obesity compared to leanness. The postprandial state is of interest due to the central role of the liver in regulating macronutrient and energy homeostasis during the fed-fast cycle and lack of previously reported controlled studies in the postprandial state. Therefore, we assessed the proteome and phosphoproteome of liver in the postprandial state from diet-induced obese (DIO) and lean mice using untargeted LC-MS/MS analysis. We identified significant alterations in the levels of proteins involved in fatty acid oxidation, activation, and transport, as well as proteins involved in energy metabolism including ketogenesis, tricarboxylic acid cycle, and electron transport chain in liver of DIO compared to lean mice. Additionally, phosphorylated proteins in liver of DIO and lean mice reflect possible regulatory mechanisms controlling fatty acid metabolism and gene expression that may contribute to hepatic metabolic alterations in obesity. Our data indicates PPARα-mediated transcriptional regulation of lipid metabolism and adaptation to hepatic lipid overload. The results of this study expand our knowledge of the molecular changes that occur in liver in the postprandial state in obesity compared to leanness. SIGNIFICANCE: Proteome and phosphoproteome studies of liver in a controlled postprandial state in obesity and leanness are lacking; however, this information is crucial to understanding how obesity-associated hepatosteatosis influences postprandial nutrient and energy metabolism. In this global shotgun proteome and phosphoproteome analysis, we identified unique protein signatures defining obesity and leanness in liver in the postprandial state and identified potential mechanisms contributing to hepatic metabolic alterations in obesity. The results of this study provide a foundation to focus future experiments on the contribution of altered protein and phosphorylation patterns to postprandial metabolism in obesity-associated hepatosteatosis.
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Affiliation(s)
- Alyssa S Zembroski
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, USA
| | - Kimberly K Buhman
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, USA
| | - Uma K Aryal
- Purdue Proteomics Facility, Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907, USA; Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA..
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Chen YQ, Pottanat TG, Siegel RW, Ehsani M, Qian YW, Roell WC, Konrad RJ. Angiopoietin-like protein 4(E40K) and ANGPTL4/8 complex have reduced, temperature-dependent LPL-inhibitory activity compared to ANGPTL4. Biochem Biophys Res Commun 2020; 534:498-503. [PMID: 33239171 DOI: 10.1016/j.bbrc.2020.11.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022]
Abstract
We previously demonstrated that angiopoietin-like 8 (ANGPTL8) forms a localized complex with ANGPTL4 to reduce its lipoprotein lipase (LPL)-inhibitory activity and enable increased postprandial uptake of fatty acids (FA) into adipose tissue. Because prolonged cold exposure may increase adipose tissue FA uptake and decrease circulating triglycerides (TG) by reducing ANGPTL4 expression and inducing ANGPTL8 expression (and thus ANGPTL4/8 expression), we investigated the effect of temperature on ANGPTL4 and ANGPTL4/8 LPL-inhibitory activities in vitro. As the ANGPTL4(E40K) mutation results in decreased TG, we also characterized ANGPTL4(E40K) and ANGPTL4(E40K)/8 complex LPL-inhibitory activities. Interestingly, while ANGPTL3, ANGPTL3/8, and ANGPTL4 showed similar LPL inhibition at 37 °C and 22 °C, the already reduced LPL-inhibitory activity of ANGPTL4/8 at 37 °C was even more decreased at 22 °C. At 37 °C, ANGPTL4(E40K) manifested decreased LPL-inhibitory activity compared to ANGPTL4/8, while ANGPTL4(E40K)/8 had even further reduced potency. Remarkably, ANGPTL4/8, ANGPTL4(E40K), and ANGPTL4(E40K)/8 were each actually capable of stimulating LPL activity at 22 °C. Together, these results indicate that ANGPTL4/8 stimulation of LPL activity at low temperatures may represent an additional mechanism for further increasing adipose tissue FA uptake during cold exposure, beyond that already occurring due to decreased ANGPTL4 expression and increased ANGPTL8 expression. In addition, because ANGPTL4(E40K) has decreased LPL-inhibitory activity compared to ANGPTL4/8, our findings also suggest why ANGPTL4(E40K) carriers have decreased circulating TG levels.
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Affiliation(s)
- Yan Q Chen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Thomas G Pottanat
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA; Department of Biology, Indiana University - Purdue University Indianapolis, Indianapolis, IN, USA
| | - Robert W Siegel
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Mariam Ehsani
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Yue-Wei Qian
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - William C Roell
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Robert J Konrad
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA.
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Moore J, Salmons H, Vinoskey C, Kressler J. A single one-minute, comfortable paced, stair-climbing bout reduces postprandial glucose following a mixed meal. Nutr Metab Cardiovasc Dis 2020; 30:1967-1972. [PMID: 32811738 DOI: 10.1016/j.numecd.2020.06.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/26/2020] [Accepted: 06/22/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS Postprandial blood glucose (PBG) is an independent predictor of disease and mortality risk. To date, the shortest, single, moderate-intensity exercise intervention to reduce PBG is a 1 min bout of stair stepping during an oral glucose tolerance test. Whether this effect translates to real meal consumption is unknown. METHODS AND RESULTS Subjects (N = 30) participated in a randomized controlled crossover trial performing 0 min (seated control), 1 min, 3 min or 10 min of stair climbing and descending bouts (SCD) at a self-selected pace after consumption of a mixed meal on four separate visits. Compared to control, all SCD reduced PBG at least one timepoint: at 30-min the 3 min (-10.8 (-18.7 to -2.8) mg/dL, p = 0.010) and 10 min (-36.3 (-46.4 to -26.3) mg/dL), p < .001), and at 45-min the 1 min (-7.3 (-13.9 to -0.7) mg/dL, p = 0.030, 3 min (-8.7 (-13.9 to -3.6) mg/dL, p = 0.002 and 10 min SCD (-12.2 (-18.2 to -6.1)mg/dL, p < 0.000) reduced PBG. The area under the curve (AUC) for PBG was lower following the 3 min (-4.4% (-7.5 to -1.4%), p = 0.006) and 10 min (-8.9% (-12.4 to -5.3%), p < 0.001), while the incremental AUC (iAUC) was reduced only following the 10 min (-38.0% (-63.7 to -12.3%), p = 0.005) SCD. All SCD were rated by subjects as very light to light intensity. CONCLUSIONS Single, subjectively "light" intensity stair climbing and descending bouts as short as 1 min in duration attenuate the postprandial glucose response in normal weight individuals following consumption of a mixed meal. More pronounced effects require longer bouts in a dose-dependent manner.
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Affiliation(s)
- Jeff Moore
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, USA.
| | - Hannah Salmons
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, USA
| | - Cameron Vinoskey
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, USA
| | - Jochen Kressler
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, USA
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Williams PT. Quantile-dependent expressivity of plasma adiponectin concentrations may explain its sex-specific heritability, gene-environment interactions, and genotype-specific response to postprandial lipemia. PeerJ 2020; 8:e10099. [PMID: 33088620 PMCID: PMC7568478 DOI: 10.7717/peerj.10099] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 07/03/2020] [Accepted: 09/14/2020] [Indexed: 12/22/2022] Open
Abstract
Background "Quantile-dependent expressivity" occurs when the effect size of a genetic variant depends upon whether the phenotype (e.g. adiponectin) is high or low relative to its distribution. We have previously shown that the heritability (h2 ) of adiposity, lipoproteins, postprandial lipemia, pulmonary function, and coffee and alcohol consumption are quantile-specific. Whether adiponectin heritability is quantile specific remains to be determined. Methods Plasma adiponectin concentrations from 4,182 offspring-parent pairs and 1,662 sibships from the Framingham Heart Study were analyzed. Quantile-specific heritability from offspring-parent (β OP,h2 = 2β OP/(1 + rspouse)) and full-sib regression slopes (β FS, h2 = {(1 + 8rspouse β FS)0.05-1}/(2rspouse)) were robustly estimated by quantile regression with nonparametric significance assigned from 1,000 bootstrap samples. Results Quantile-specific h2 (± SE) increased with increasing percentiles of the offspring's age- and sex-adjusted adiponectin distribution when estimated from β OP (P trend = 2.2 × 10-6): 0.30 ± 0.03 at the 10th, 0.33 ± 0.04 at the 25th, 0.43 ± 0.04 at the 50th, 0.55 ± 0.05 at the 75th, and 0.57 ± 0.08 at the 90th percentile, and when estimated from β FS (P trend = 7.6 × 10-7): 0.42 ± 0.03 at the 10th, 0.44 ± 0.04 at the 25th, 0.56 ± 0.05 at the 50th, 0.73 ± 0.08 at the 75th, and 0.79 ± 0.11 at the 90th percentile. Consistent with quantile-dependent expressivity, adiponectin's: (1) heritability was greater in women in accordance with their higher adiponection concentrations; (2) relationships to ADIPOQ polymorphisms were modified by adiposity in accordance with its adiponectin-lowering effect; (3) response to rosiglitazone was predicted by the 45T> G ADIPOQ polymorphism; (4) difference by ADIPOQ haplotypes increased linearly with increasing postprandial adiponectin concentrations. Conclusion Adiponectin heritability is quantile dependent, which may explain sex-specific heritability, gene-environment and gene-drug interactions, and postprandial response by haplotypes.
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Affiliation(s)
- Paul T Williams
- Molecular Biophysics & Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, United States of America
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do Rosario VA, Chang C, Spencer J, Alahakone T, Roodenrys S, Francois M, Weston-Green K, Hölzel N, Nichols DS, Kent K, Williams D, Wright IMR, Charlton K. Anthocyanins attenuate vascular and inflammatory responses to a high fat high energy meal challenge in overweight older adults: A cross-over, randomized, double-blind clinical trial. Clin Nutr 2020; 40:879-889. [PMID: 33071012 DOI: 10.1016/j.clnu.2020.09.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 06/19/2020] [Revised: 09/04/2020] [Accepted: 09/25/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Postprandial metabolic imbalances are important indicators of later developing cardiovascular disease (CVD). This study investigated the effects of food anthocyanins on vascular and microvascular function, and CVD associated biomarkers following a high fat high energy (HFHE) meal challenge in overweight older adults. METHODS Sixteen subjects (13 female, 3 male, mean age 65.9 SD 6.0 and body mass index 30.6 kg/m2 SD 3.9) participated in a crossover, randomized, controlled, double-blind clinical trial (registered under Australian New Zealand Clinical Trials Registry, identifier no. ACTRN12620000437965). Participants consumed a HFHE meal with a 250 mL dose of either intervention (anthocyanins-rich Queen Garnet Plum) or control (apricot) juice. Blood samples and blood pressure measures were collected at baseline, 2 h and 4 h following the HFHE meal. Vascular and microvascular function were evaluated at baseline and 2 h after the HFHE meal. RESULTS Participants had a higher 2 h postprandial flow-mediated dilatation (+1.14%) and a higher microvascular post-occlusive reactive hyperaemia (+0.10 perfusion units per mmHg) when allocated to the anthocyanin compared to the control arm (P = 0.019 and P = 0.049, respectively). C-reactive protein was lower 4 h postprandially in the anthocyanins (1.80 mg/L, IQR 0.90) vs control arm (2.30 mg/L, IQR 1.95) (P = 0.026), accompanied by a trend for lower concentrations of interleukin-6 (P = 0.075). No significant postprandial differences were observed between treatments for blood pressure, triacylglycerol, total cholesterol, serum derivatives of reactive oxidative metabolites, tumor necrosis factor alpha, interleukin-1 beta, or maximum microvascular perfusion following iontophoresis of acetylcholine. CONCLUSION Fruit-based anthocyanins attenuated the potential postprandial detrimental effects of a HFHE challenge on parameters of vascular and microvascular function, and inflammatory biomarkers in overweight older adults. Anthocyanins may reduce cardiovascular risk associated with endothelial dysfunction and inflammatory responses to a typical high fat 'Western' meal. Further studies are required to better elucidate the clinical implications of postprandial biomarkers of CVD.
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Affiliation(s)
- Vinicius A do Rosario
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Courtney Chang
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
| | - Jaclyn Spencer
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Thilani Alahakone
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Steven Roodenrys
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Monique Francois
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
| | - Katrina Weston-Green
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia; Molecular Horizons, University of Wollongong, NSW, 2522, Australia.
| | - Nadine Hölzel
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, 7000, Australia.
| | - David S Nichols
- Central Sciences Laboratory, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Katherine Kent
- Centre for Rural Health, University of Tasmania, Launceston, TAS, 7250, Australia.
| | - David Williams
- Department of Agriculture and Fisheries, QLD, 4108, Australia.
| | - Ian M R Wright
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia; College of Medicine and Dentistry, James Cook University, Cairns, QLD, 4870, Australia.
| | - Karen Charlton
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
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Lee HC, Shin SJ, Huang JK, Lin MY, Lin YH, Ke LY, Jiang HJ, Tsai WC, Chao MF, Lin YH. The role of postprandial very-low-density lipoprotein in the development of atrial remodeling in metabolic syndrome. Lipids Health Dis 2020; 19:210. [PMID: 32962696 PMCID: PMC7507670 DOI: 10.1186/s12944-020-01386-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 06/22/2020] [Accepted: 09/10/2020] [Indexed: 11/30/2022] Open
Abstract
Background Negatively charged very-low-density lipoprotein (VLDL-χ) in metabolic syndrome (MetS) patients exerts cytotoxic effects on endothelial cells and atrial myocytes. Atrial cardiomyopathy, manifested by atrial remodeling with a dilated diameter, contributes to atrial fibrillation pathogenesis and predicts atrial fibrillation development. The correlation of VLDL-χ with atrial remodeling is unknown. This study investigated the association between VLDL-χ and remodeling of left atrium. Methods Consecutively, 87 MetS and 80 non-MetS individuals between 23 and 74 years old (50.6% men) without overt cardiovascular diseases were included in the prospective cohort study. Blood samples were collected while fasting and postprandially (at 0.5, 1, 2, and 4 h after a unified meal). VLDL was isolated by ultracentrifugation; the percentile concentration of VLDL-χ (%) was determined by ultra-performance liquid chromatography. The correlations of left atrium diameter (LAD) with variables including VLDL-χ, LDL-C, HDL-C, triglycerides, glucose, and blood pressure, were analyzed by multiple linear regression models. A hierarchical linear model was conducted to test the independencies of each variable’s correlation with LAD. Results The mean LAD was 3.4 ± 0.5 cm in non-MetS subjects and 3.9 ± 0.5 cm in MetS patients (P < 0.01). None of the fasting lipid profiles were associated with LAD. VLDL-χ, BMI, waist circumference, hip circumference, and blood pressure were positively correlated with LAD (all P < 0.05) after adjustment for age and sex. Significant interactions between VLDL-χ and blood pressure, waist circumference, and hip circumference were observed. When adjusted for obesity- and blood pressure-related variables, 2-h postprandial VLDL-χ (mean 1.30 ± 0.61%) showed a positive correlation with LAD in MetS patients. Each 1% VLDL-χ increase was estimated to increase LAD by 0.23 cm. Conclusions Postprandial VLDL-χ is associated with atrial remodeling particularly in the MetS group. VLDL-χ is a novel biomarker and may be a therapeutic target for atrial cardiomyopathy in MetS patients. Trial registration ISRCTN 69295295. Retrospectively registered 9 June 2020.
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Affiliation(s)
- Hsiang-Chun Lee
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. .,Lipid Science and Aging Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Institute/Center of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan.
| | - Shyi-Jang Shin
- Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jih-Kai Huang
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Yen Lin
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Hsun Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Liang-Yin Ke
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Lipid Science and Aging Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - He-Jiun Jiang
- Department of Metabolism, Affiliated Hospital of Kaohsiung Medical University, Kaohsiung, Taiwan.,College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Wei-Chung Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Min-Fang Chao
- Department of Medical Imaging, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Hsiung Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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Dordevic AL, Coort SL, Evelo CT, Murgia C, Sinclair AJ, Bonham MP, Larsen AE, Gran P, Cameron-Smith D. Blunted nutrient-response pathways in adipose tissue following high fat meals in men with metabolic syndrome: A randomized postprandial transcriptomic study. Clin Nutr 2020; 40:1355-1366. [PMID: 32928582 DOI: 10.1016/j.clnu.2020.08.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/22/2020] [Revised: 08/04/2020] [Accepted: 08/18/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Excessive adipose tissue is central to disease burden posed by the Metabolic Syndrome (MetS). Whilst much is known of the altered transcriptomic regulation of adipose tissue under fasting conditions, little is known of the responses to high-fat meals. METHODS Nineteen middle-aged males (mean ± SD 52.0 ± 4.6 years), consumed two isocaloric high-fat, predominately dairy-based or soy-based, breakfast meals. Abdominal subcutaneous adipose biopsies were collected after overnight fast (0 h) and 4 h following each meal. Global gene expression profiling was performed by microarray (Illumina Human WG-6 v3). RESULTS In the fasted state, 13 genes were differently expressed between control and MetS adipose tissue (≥1.2 fold-difference, p < 0.05). In response to the meals, the control participants had widespread increases in genes related to cellular nutrient responses (≥1.2 fold-change, p < 0.05; 2444 & 2367 genes; dairy & soy, respectively). There was blunted response in the MetS group (≥1.2 fold-change, p < 0.05; 332 & 336 genes; dairy & soy, respectively). CONCLUSIONS In middle-aged males with MetS, a widespread suppression of the subcutaneous adipose tissue nutrient responsive gene expression suggests an inflexibility in the transcriptomic responsiveness to both high-fat meals.
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Affiliation(s)
- Aimee L Dordevic
- Department of Nutrition, Dietetics & Food, Monash University, Melbourne, Australia.
| | - Susan L Coort
- Department of Bioinformatics - BiGCaT, NUTRIM School of Nutrition and Metabolism in Translational Research, Maastricht University, Maastricht, the Netherlands
| | - Chris T Evelo
- Department of Bioinformatics - BiGCaT, NUTRIM School of Nutrition and Metabolism in Translational Research, Maastricht University, Maastricht, the Netherlands
| | - Chiara Murgia
- School of Agriculture and Food, University of Melbourne, Melbourne, Australia
| | - Andrew J Sinclair
- Department of Nutrition, Dietetics & Food, Monash University, Melbourne, Australia; Faculty of Health, Deakin University, Melbourne, Australia
| | - Maxine P Bonham
- Department of Nutrition, Dietetics & Food, Monash University, Melbourne, Australia
| | - Amy E Larsen
- Department of Physiology, Anatomy, and Microbiology, La Trobe University, Melbourne, Australia
| | - Petra Gran
- Faculty of Health, Deakin University, Melbourne, Australia
| | - David Cameron-Smith
- Liggins Institute, University of Auckland, Auckland, New Zealand; The Riddet Institute, Massey University, Palmerston North, New Zealand; Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore
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Shambrook P, Kingsley MI, Taylor NF, Wundersitz DW, Wundersitz CE, Gordon BA. Multiple short bouts of exercise are better than a single continuous bout for cardiometabolic health: a randomised crossover trial. Eur J Appl Physiol 2020; 120:2361-2369. [PMID: 32776220 DOI: 10.1007/s00421-020-04461-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/27/2020] [Accepted: 08/04/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE To compare cardiometabolic responses to five consecutive days of daily postprandial exercise accumulated in three 10-min bouts or a single 30-min bout to a no-exercise control. METHODS Ten insufficiently active adults completed three trials in a randomised order. Each trial comprised five consecutive days of 30 min of exercise either accumulated in three separate 10-min bouts (ACC) after main meals; a single 30-min bout after dinner (CONT); or a no-exercise control (NOEX). Glucose regulation was assessed from an oral glucose tolerance test. Applanation tonometry was used to assess pulse wave velocity approximately 12 h following completion of the final trial. RESULTS Area under the 2-h glucose curve was similar for CONT (mean; 95% CI 917 mmol L-1 2 h-1; 815 to 1019) and ACC (931 mmol L-1 2 h-1; 794 to 1068, p = 0.671). Area under the 2-h insulin curve was greater following NOEX (70,328 pmol L-1 2 h-1; 30,962 to 109,693) than ACC (51,313 pmol L-1 2 h-1: 21,822 to 80,806, p = 0.007). Pulse wave velocity was lower for ACC (5.96 m s-1: 5.38 to 6.53) compared to CONT (6.93 m s-1: 5.92 to 7.94, p = 0.031) but not significantly lower for ACC compared to NOEX (6.52 m s-1: 5.70 to 7.34, p = 0.151). CONCLUSION Accumulating 30 min of moderate-intensity walking in three bouts throughout the day is more effective at reducing markers of cardiometabolic health risk in insufficiently active, apparently healthy adults than a single daily bout. Both accumulated and single-bout walking were equally as effective at reducing postprandial glucose concentrations compared to a no-exercise control. Therefore, accumulating exercise in short bouts after each main meal might be more advantageous for overall cardiometabolic health.
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Affiliation(s)
- Philip Shambrook
- Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, P.O. Box 199, Bendigo, VIC, 3552, Australia
| | - Michael I Kingsley
- Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, P.O. Box 199, Bendigo, VIC, 3552, Australia.,Department of Exercise Sciences, Faculty of Science, University of Auckland, Auckland, New Zealand
| | - Nicholas F Taylor
- School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia
| | - Daniel W Wundersitz
- Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, P.O. Box 199, Bendigo, VIC, 3552, Australia
| | - Claire E Wundersitz
- Angliss Hospital Community Rehabilitation Programme, Eastern Health, Melbourne, Australia
| | - Brett A Gordon
- Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, P.O. Box 199, Bendigo, VIC, 3552, Australia.
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Smeets ETHC, Mensink RP, Joris PJ. Dietary macronutrients do not differently affect postprandial vascular endothelial function in apparently healthy overweight and slightly obese men. Eur J Nutr 2020; 60:1443-1451. [PMID: 32728881 PMCID: PMC7987601 DOI: 10.1007/s00394-020-02340-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/03/2020] [Accepted: 07/21/2020] [Indexed: 12/24/2022]
Abstract
Purpose Well-designed trials comparing side-by-side effects of macronutrients on postprandial endothelial function are missing. Therefore, we investigated under well-controlled and isocaloric condition effects of fat, carbohydrates, and protein on postprandial endothelial function as assessed by brachial artery flow-mediated vasodilation (FMD), an important non-invasive technique to assess endothelial function. Methods Eighteen apparently healthy overweight and slightly obese men (BMI 26.0–35.0 kg/m2) completed this randomized, double-blinded, cross-over trial. The study consisted of three test days each separated by a wash-out period of at least 1 week. After an overnight fast, men received an isocaloric meal providing 3987 kJ (953 kcal) that was either high in dietary fat (En% fat [F]/carbohydrates [C]/protein [P]: 52.3, 39.2, 8.0), carbohydrates (En% F/C/P: 9.6, 81.5, 8.6), or protein (En% F/C/P: 10.6, 51.5, 36.9). Fasting and 2-h postprandial FMD responses were measured. Results A postprandial decrease of 1.2% point in FMD was observed after the high-protein meal (P = 0.015). However, postprandial changes did not differ between meals (P = 0.45). An increase in baseline brachial artery diameters was observed after the high-protein meal (P < 0.001) and changes differed between meals (P = 0.020). A meal*time interaction was found for plasma glucose concentrations, with the most pronounced increases after the high-carbohydrate meal at T15, T30, T60, and T90 (P < 0.05). A significant time and meal (P < 0.001), but no time*meal effect (P = 0.06) was found for serum insulin concentrations. Increases in serum triacylglycerol concentrations did not differ between meals (P = 0.014). Conclusion Macronutrients did not differently affect postprandial endothelial function in apparently healthy overweight and slightly obese men. Trial registration Trial registration number (ClinicalTrials.gov) NCT03139890 in May 2017 Electronic supplementary material The online version of this article (10.1007/s00394-020-02340-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ellen T H C Smeets
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, PO Box 616, 6200 MD, Maastricht, The Netherlands
| | - Ronald P Mensink
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, PO Box 616, 6200 MD, Maastricht, The Netherlands
| | - Peter J Joris
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, PO Box 616, 6200 MD, Maastricht, The Netherlands.
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Allerton DM, West DJ, Stevenson EJ. Whey protein consumption following fasted exercise reduces early postprandial glycaemia in centrally obese males: a randomised controlled trial. Eur J Nutr 2020; 60:999-1011. [PMID: 32572617 PMCID: PMC7900064 DOI: 10.1007/s00394-020-02304-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 06/08/2020] [Indexed: 02/07/2023]
Abstract
Purpose Acute submaximal exercise and whey protein supplementation have been reported to improve postprandial metabolic and appetite responses to a subsequent meal independently. We aimed to examine the combination of these strategies on postprandial responses to a carbohydrate-rich breakfast. Methods Twelve centrally obese males (age 41 ± 3 years, waist circumference 123.4 ± 2.9 cm), completed three trials in a single-blind, crossover design. Participants rested for 30 min (CON) or completed 30 min low–moderate-intensity treadmill walking (51 ± 1% \documentclass[12pt]{minimal}
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\begin{document}$${{\dot{V}O}}_{\text{2peak}}$$\end{document}V˙O2peak) followed immediately by ingestion of 20 g whey protein (EX + PRO) or placebo (EX). After 15 min, a standardised breakfast was consumed and blood, expired gas and subjective appetite were sampled postprandially. After 240 min, an ad libitum lunch meal was provided to assess energy intake. Results During EX + PRO, post-breakfast peak blood glucose was reduced when compared with EX and CON (EX + PRO: 7.6 ± 0.4 vs EX: 8.4 ± 0.3; CON: 8.3 ± 0.3 mmol l−1, p ≤ 0.04). Early postprandial glucose AUC0–60 min was significantly lower under EX + PRO than EX (p = 0.011), but not CON (p = 0.12). Over the full postprandial period, AUC0–240 min during EX + PRO did not differ from other trials (p > 0.05). Peak plasma insulin concentrations and AUC0–240 min were higher during EX + PRO than CON, but similar to EX. Plasma triglyceride concentrations, substrate oxidation and subjective appetite responses were similar across trials and ad libitum energy intake was not influenced by prior fasted exercise, nor its combination with whey protein supplementation (p > 0.05). Conclusion Following fasted low–moderate-intensity exercise, consuming whey protein before breakfast may improve postprandial glucose excursions, without influencing appetite or subsequent energy intake, in centrally obese males. Trial registration number NCT02714309.
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Affiliation(s)
- Dean M Allerton
- School of Biomedical, Nutritional and Sport Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Daniel J West
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Emma J Stevenson
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK.
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Abstract
In the United States, 4 out of 10 adults with diabetes are ≥65 years of age. The older adult with diabetes is very likely to be asymptomatic and also at higher risk of vascular disease. New concerns include new diagnosis of diabetes for older adults admitted to hospital and older adults in long-term care facilities. The pathophysiology for increased incidence of diabetes in older adults is multifactorial, but dominant features are increased likelihood of metabolic syndrome, dysfunctional insulin secretion, and peripheral insulin resistance. Society in general benefits from more cost-effective care of older adults with diabetes.
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Affiliation(s)
- S Sethu K Reddy
- CMED 2419, Central Michigan University, Mt. Pleasant, MI 48859, USA.
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West AL, Michaelson LV, Miles EA, Haslam RP, Lillycrop KA, Georgescu R, Han L, Sayanova O, Napier JA, Calder PC, Burdge GC. Differential postprandial incorporation of 20:5n-3 and 22:6n-3 into individual plasma triacylglycerol and phosphatidylcholine molecular species in humans. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158710. [PMID: 32289503 DOI: 10.1016/j.bbalip.2020.158710] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/31/2020] [Accepted: 04/05/2020] [Indexed: 11/17/2022]
Abstract
The mechanisms by which digested fat is absorbed and transported in the circulation are well documented. However, it is uncertain whether the molecular species composition of dietary fats influences the molecular species composition of meal-derived lipids in blood. This may be important because enzymes that remove meal-derived fatty acids from the circulation exhibit differential activities towards individual lipid molecular species. To determine the effect of consuming oils with different molecular compositions on the incorporation of 20:5n-3 and 22:6n-3 into plasma lipid molecular species. Men and women (18-30 years) consumed standardised meals containing 20:5n-5 and 22:6n-3 (total 450 mg) provided by an oil from transgenic Camelina sativa (CSO) or a blended fish oil (BFO) which differed in the composition of 20:5n-3 and 22:6n-3 - containing molecular species. Blood was collected during the subsequent 8 h. Samples were analysed by liquid chromatography-mass spectrometry. The molecular species composition of the test oils was distinct from the composition of plasma triacylglycerol (TG) or phosphatidylcholine (PC) molecular species at baseline and at 1.5 or 6 h after the meal. The rank order by concentration of both plasma PC and TG molecular species at baseline was maintained during the postprandial period. 20:5n-3 and 22:6n-3 were incorporated preferentially into plasma PC compared to plasma TG. Together these findings suggest that the composition of dietary lipids undergoes extensive rearrangement after absorption, such that plasma TG and PC maintain their molecular species composition, which may facilitate lipase activities in blood and/or influence lipoprotein structural stability and function.
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Affiliation(s)
- Annette L West
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | | | - Elizabeth A Miles
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | - Richard P Haslam
- Department of Plant Sciences, Rothamsted Research, Harpenden AL5 2JQ, UK
| | - Karen A Lillycrop
- Centre for Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton SO17 1BJ, UK
| | - Ramona Georgescu
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | - Lihua Han
- Department of Plant Sciences, Rothamsted Research, Harpenden AL5 2JQ, UK
| | - Olga Sayanova
- Department of Plant Sciences, Rothamsted Research, Harpenden AL5 2JQ, UK
| | - Johnathan A Napier
- Department of Plant Sciences, Rothamsted Research, Harpenden AL5 2JQ, UK
| | - Philip C Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton SO16 6YD, UK
| | - Graham C Burdge
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK.
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Moore J, Kressler J, Buono MJ. Hand heating lowers postprandial blood glucose concentrations: A double-blind randomized controlled crossover trial. Complement Ther Med 2020; 49:102280. [PMID: 32147036 DOI: 10.1016/j.ctim.2019.102280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/26/2019] [Revised: 11/30/2019] [Accepted: 12/11/2019] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVES Examine effect of single hand heating with and without negative pressure on fasting blood glucose (FBG) and postprandial blood glucose (PBG). DESIGN Double-blind randomized controlled trial with crossover design. SUBJECTS FBG experiment: 17 healthy subjects (4 males). PBG experiment: 13 healthy subjects (1 males). INTERVENTIONS Devices included one providing heat only, one heat and negative pressure, and one acting as a sham. For the FBG experiment the devices were used for 30 min. For the PBG experiment the devices were used for one hour during an oral glucose tolerance test (OGTT). OUTCOME MEASURES Blood glucose measurements were used to determine change in FBG, peak PBG, area under the curve (AUC), and incremental AUC (iAUC). RESULTS Temperature: Change in tympanic temperature was ≤ 0.15 °C for all trials. FBG: There was no effect on FBG. PBG: Compared to the sham device the heat plus vacuum and heat only device lowered peak blood glucose by 16(31)mg/dL, p = 0.092 and 18(28)mg/dL, p = 0.039, respectively. AUC and iAUC: Compared to the sham device, the heat plus vacuum device and heat only device lowered the AUC by 5.1(15.0)%, p = 0.234 and 7.9(11.1)%, p = 0.024 respectively and iAUC by 17.2(43.4)%, p = 0.178 and 20.5(34.5)%, p = 0.054, respectively. CONCLUSIONS Heating a single hand lowers postprandial blood glucose in healthy subjects.
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Affiliation(s)
- Jeff Moore
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, United States.
| | - Jochen Kressler
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, United States.
| | - Michael J Buono
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, 92182-7251, United States; Department of Biology, San Diego State University, San Diego, CA, 92182-7251, United States.
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