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Sabatini S, Nolan JJ, O'Donoghue G, Kennedy A, Petrie J, Walker M, O'Gorman DJ, Gastaldelli A. Baseline phenotypes with preserved β-cell function and high insulin concentrations have the best improvements in glucose tolerance after weight loss: results from the prospective DEXLIFE and EGIR-RISC studies. Metabolism 2024; 155:155910. [PMID: 38599278 DOI: 10.1016/j.metabol.2024.155910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Weight loss and lifestyle intervention improve glucose tolerance delaying the onset of type 2 diabetes (T2D), but individual responses are highly variable. Determining the predictive factors linked to the beneficial effects of weight loss on glucose tolerance could provide tools for individualized prevention plans. Thus, the aim was to investigate the relationship between pre-intervention values of insulin sensitivity and secretion and the improvement in glucose metabolism after weight loss. METHODS In the DEXLIFE cohort (373 individuals at high risk of T2D, assigned 3:1 to a 12-week lifestyle intervention or a control arm, Trial Registration: ISRCTN66987085), K-means clustering and logistic regression analysis were performed based on pre-intervention indices of insulin sensitivity, insulin secretion (AUC-I), and glucose-stimulated insulin response (ratio of incremental areas of insulin and glucose, iAUC I/G). The response to the intervention was evaluated in terms of reduction of OGTT-glucose concentration. Clusters' validation was done in the prospective EGIR-RISC cohort (n = 1538). RESULTS Four replicable clusters with different glycemic and metabolomic profiles were identified. Individuals had similar weight loss, but improvement in glycemic profile and β-cell function was different among clusters, highly depending on pre-intervention insulin response to OGTT. Pre-intervention high insulin response was associated with the best improvement in AUC-G, while clusters with low AUC-I and iAUC I/G showed no beneficial effect of weight loss on glucose control, as also confirmed by the logistic regression model. CONCLUSIONS Individuals with preserved β-cell function and high insulin concentrations at baseline have the best improvement in glucose tolerance after weight loss.
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Affiliation(s)
- Silvia Sabatini
- Institute of Clinical Physiology, National Research Council, CNR, Pisa, Italy
| | - John J Nolan
- Department of Clinical Medicine, Trinity College Dublin, Ireland
| | - Grainne O'Donoghue
- School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | - Aileen Kennedy
- School of Biological, Health and Sports Sciences, Technological University Dublin, Dublin, Ireland
| | - John Petrie
- School of Health and Wellbeing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Mark Walker
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Donal J O'Gorman
- School of Health and Human Performance, Dublin City University, Glasnevin, Dublin, Ireland
| | - Amalia Gastaldelli
- Institute of Clinical Physiology, National Research Council, CNR, Pisa, Italy.; Diabetes Division, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
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2
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Murphy E, Finucane FM. Addressing uncertainty about the role of structured lifestyle modification for metabolic surgery patients. Metabolism 2024; 151:155739. [PMID: 37984732 DOI: 10.1016/j.metabol.2023.155739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/27/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023]
Abstract
There is good evidence that structured lifestyle modification programmes improve health in patients with metabolic and cardiovascular disorders, but there is no specific evidence that they improve outcomes in patients undergoing metabolic or obesity surgery. Despite expert consensus guidelines stating this fact, some healthcare systems still compel patients to participate in a structured lifestyle modification programme prior to metabolic or obesity surgery. There is a well-established need for individualised multidisciplinary dietetic and physical activity care for metabolic and obesity surgery patients, and the benefits of intentional weight loss prior to surgery are well proven, but these are distinct from potentially harmful requirements for patients to undertake compulsory structured lifestyle programmes of fixed duration, frequency and intensity, which may delay surgery and reinforce obesity stigma. A critical step in rejuvenating metabolic surgery is to reframe patient participation in structured lifestyle modification programmes as an opportunity for education and empowerment, not as an indicator of motivation or suitability for metabolic surgery. Large, well-designed and adequately powered clinical trials are needed to address uncertainties in the evidence base for these programmes. Given genuine equipoise, they will need to determine whether "surgery plus lifestyle" is superior to "surgery plus placebo". Moreover, they will need to determine the cost-effectiveness of these programmes and identify some of the factors giving rise to the substantial heterogeneity in responses to structured lifestyle modification.
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Affiliation(s)
- Enda Murphy
- Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Saolta Health Care Group, Galway, Ireland; HRB Clinical Research Facility, University of Galway and Saolta University Health Care Group, Ireland; Cúram, University of Galway, Ireland.
| | - Francis M Finucane
- Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Saolta Health Care Group, Galway, Ireland; HRB Clinical Research Facility, University of Galway and Saolta University Health Care Group, Ireland; Cúram, University of Galway, Ireland
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3
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Salunkhe VA, Sinha N, Ahlqvist E, Prasad RB, Johansson S, Abrahamsson B, Rosengren AH. Digital lifestyle treatment improves long-term metabolic control in type 2 diabetes with different effects in pathophysiological and genetic subgroups. NPJ Digit Med 2023; 6:199. [PMID: 37884680 PMCID: PMC10603160 DOI: 10.1038/s41746-023-00946-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 10/13/2023] [Indexed: 10/28/2023] Open
Abstract
To address the unmet need for scalable solutions for lifestyle treatment, we developed a new digital method to promote behavioral change. Here we report that patients with type-2 diabetes in Sweden (n = 331) exposed to the intervention have significantly improved HbA1c during a median follow-up of 1038 days (4 mmol/mol compared with matched controls; P = 0.009). This is paralleled by reduced body weight, ameliorated insulin secretion, increased physical activity, and cognitive eating restraints. Participants with high BMI and insulin resistance have an even larger response, as have non-risk allele carriers for the FTO gene. The findings open a new avenue for scalable lifestyle management with sustained efficacy and highlight a previously unrecognized opportunity for digital precision treatment based on genetics and individual pathophysiology. ClinicalTrials.gov NCT04624321.
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Affiliation(s)
- Vishal A Salunkhe
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Neha Sinha
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Emma Ahlqvist
- Lund University Diabetes Centre, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Rashmi B Prasad
- Lund University Diabetes Centre, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | | | - Birgitta Abrahamsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Anders H Rosengren
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
- Region Skåne, Kristianstad, Sweden.
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4
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Finucane FM, Gibson I, Hughes R, Murphy E, Hynes L, Harris A, McGuire BE, Hynes M, Collins C, Cradock K, Seery S, Jones J, O’Brien T, O’Donnell MJ. Factors associated with weight loss and health gains in a structured lifestyle modification programme for adults with severe obesity: a prospective cohort study. Front Endocrinol (Lausanne) 2023; 14:1257061. [PMID: 37916153 PMCID: PMC10616877 DOI: 10.3389/fendo.2023.1257061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/27/2023] [Indexed: 11/03/2023] Open
Abstract
Background Individual responses to behavioural weight loss interventions can vary significantly, and a better understanding of the factors associated with successful treatment might help to target interventions for those who will benefit the most. We sought to identify demographic and clinical characteristics that predicted intervention "success" (defined as ≥5% weight loss) and other health gains in patients with severe obesity attending a ten-week structured lifestyle modification programme. Methods We conducted a prospective cohort study of all 1122 patients (751 (66.9%) female, mean age 47.3 ± 11.9 years, mean body mass index (BMI) 46.7 ± 7.8 kgm-2) referred from our hospital-based obesity clinic, who started the structured lifestyle programme between 2012-2019. We compared routine clinical measures such as weight, fitness, blood pressure, lipids and HbA1c at baseline and follow-up. We also used validated questionnaires to quantify anxiety, depression and health-related quality of life. Results Of 1122 patients who started, 877 (78.2%) completed the programme and attended for follow up. Of these, 12.8% lost ≥5% body weight. The amount of weight lost was a strong and consistent predictor of improvements in metabolic, cardiovascular, and mental health, even after adjusting for age, sex, programme attendance and baseline fitness. Older age, male sex, being physically active and having lower anxiety and depression scores at baseline predicted greater weight loss. Younger age, depression and longer wait time to start the intervention were associated with drop-out. Conclusions In adults with severe obesity completing a structured lifestyle modification programme, older age and good mental health were associated with programme completion and attaining ≥5% weight loss. The magnitude of weight lost was a strong predictor of improvements in cardiovascular, metabolic and mental health associated with programme completion.
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Affiliation(s)
- Francis M. Finucane
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
- Cúram, University of Galway, Galway, Ireland
| | - Irene Gibson
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
- Croí, The West of Ireland Cardiac Foundation, Galway, Ireland
- National Institute of Preventive Cardiology, University of Galway, Galway, Ireland
| | - Robert Hughes
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
| | - Enda Murphy
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
- Cúram, University of Galway, Galway, Ireland
| | - Lisa Hynes
- Croí, The West of Ireland Cardiac Foundation, Galway, Ireland
- National Institute of Preventive Cardiology, University of Galway, Galway, Ireland
| | - Aisling Harris
- Croí, The West of Ireland Cardiac Foundation, Galway, Ireland
- National Institute of Preventive Cardiology, University of Galway, Galway, Ireland
| | - Brian E. McGuire
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- School of Psychology, University of Galway, Galway, Ireland
| | - Mary Hynes
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- School of Psychology, University of Galway, Galway, Ireland
| | - Chris Collins
- Department of Upper Gastrointestinal Surgery, Galway University Hospital, Galway, Ireland
| | - Kevin Cradock
- Department of Health and Nutrition Sciences, Atlantic Technological University, Sligo, Ireland
| | - Suzanne Seery
- Croí, The West of Ireland Cardiac Foundation, Galway, Ireland
- National Institute of Preventive Cardiology, University of Galway, Galway, Ireland
| | - Jennifer Jones
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
- Croí, The West of Ireland Cardiac Foundation, Galway, Ireland
- National Institute of Preventive Cardiology, University of Galway, Galway, Ireland
| | - Tim O’Brien
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
- Cúram, University of Galway, Galway, Ireland
| | - Martin J. O’Donnell
- Department of Medicine, College of Medicine, Nursing and Health Sciences, University of Galway, Galway, Ireland
- Cúram, University of Galway, Galway, Ireland
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5
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Zhang X, Yue Y, Liu S, Cong X, Wang W, Li J. Relationship between BMI and risk of impaired glucose tolerance and impaired fasting glucose in Chinese adults: a prospective study. BMC Public Health 2023; 23:14. [PMID: 36597050 PMCID: PMC9811686 DOI: 10.1186/s12889-022-14912-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 12/20/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Current studies in most Western countries have largely focused on body mass index (BMI) as an important risk factor for impaired glucose tolerance (IGT) and impaired fasting glucose (IFG), which have different pathophysiological bases. In people with obesity, the prevalence of IGT is higher and the prevalence of IFG is lower. The prevalence of IGT in the Asian population is higher than that in the white population, and the obesity rate in China is still increasing. However, few cohort studies explore the relationship between BMI and the incidence of IGT and IFG in China. We aimed to explore the relationship between BMI and the risk of IGT and IFG in Chinese adults and analyze the differences between them. METHODS The baseline data were obtained from the 2010 China Chronic Disease and Risk Factor Surveillance, of which 20 surveillance sites were followed up from 2016 to 2017. Finally, in this study, a total of 5,578 studies were grouped into BMI categories of underweight (BMI < 18.5 kg/m2), normal weight (18.5-23.9 kg/m2), overweight (24.0-27.9 kg/m2), and obesity (≥ 28.0 kg/m2). We used the unconditional logistic regression model to analyze the relationship between BMI and the risk of IGT and IFG. RESULTS During an average follow-up of 6.4 years, 562 developed IGT and 257 developed IFG. After age, gender, urban and rural areas, physical activity, family history of diabetes, hypertension, abdominal obesity, dyslipidemia, and other factors were adjusted, overweight increased the risk of IGT by 35% [odds ratio (OR) 1.35, 95% confidence interval (CI) 1.08-1.70], and obesity increased the risk of IGT by 77% (OR 1.77, 95% CI 1.27-1.47). After the factors consistent with the above were adjusted, only obesity increased the risk of IFG by 122% (OR 2.22, 95% CI 1.39-3.54). CONCLUSIONS In China, obesity is an important risk factor for IGT and IFG, and the risk of IGT increases during the overweight stage.
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Affiliation(s)
- Xin Zhang
- grid.508400.9National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, Beijing, 100050 China
| | - Yankun Yue
- grid.24696.3f0000 0004 0369 153XFu Xing Hospital, Capital Medical University, Beijing, 100045 China
| | - Shaobo Liu
- grid.508400.9National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, Beijing, 100050 China
| | - Xiangfeng Cong
- grid.508400.9National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, Beijing, 100050 China
| | - Wenjuan Wang
- grid.508400.9National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, Beijing, 100050 China
| | - Jianhong Li
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, Beijing, 100050, China.
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6
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Exercise-Induced N-Lactoylphenylalanine Predicts Adipose Tissue Loss during Endurance Training in Overweight and Obese Humans. Metabolites 2022; 13:metabo13010015. [PMID: 36676940 PMCID: PMC9863672 DOI: 10.3390/metabo13010015] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
Physical exercise is a powerful measure to prevent cardiometabolic diseases. However, the individual response to lifestyle interventions is variable and cannot, to date, be predicted. N-Lactoylphenylalanine (Lac-Phe) produced during exercise has recently been shown to mediate weight loss in obese mice. Lac-Phe could also contribute to, and potentially explain differences in, the effectiveness of exercise interventions in humans. Sedentary overweight and obese subjects completed an 8-week supervised endurance exercise intervention (n = 22). Before and after the intervention, plasma levels of Lac-Phe were determined by UHPLC-MS in the resting state and immediately after an acute bout of endurance exercise. Adipose tissue volume was quantified using MRI. Acute exercise caused a pronounced increase in Lac-Phe, both before and after the intervention. Higher levels of Lac-Phe after acute exercise were associated with a greater reduction in abdominal subcutaneous and, to a lower degree, visceral adipose tissue during the intervention. Lac-Phe produced during physical activity could contribute to weight loss by acting as a signaling molecule that regulates food intake, as previously shown in mice. Quantification of Lac-Phe during an exercise test could be employed as a tool to predict and potentially improve the individual response to exercise-based lifestyle interventions in overweight humans and those with obesity.
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7
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Dwibedi C, Mellergård E, Gyllensten AC, Nilsson K, Axelsson AS, Bäckman M, Sahlgren M, Friend SH, Persson S, Franzén S, Abrahamsson B, Carlsson KS, Rosengren AH. Effect of self-managed lifestyle treatment on glycemic control in patients with type 2 diabetes. NPJ Digit Med 2022; 5:60. [PMID: 35545657 PMCID: PMC9095642 DOI: 10.1038/s41746-022-00606-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 04/18/2022] [Indexed: 12/22/2022] Open
Abstract
The lack of effective, scalable solutions for lifestyle treatment is a global clinical problem, causing severe morbidity and mortality. We developed a method for lifestyle treatment that promotes self-reflection and iterative behavioral change, provided as a digital tool, and evaluated its effect in 370 patients with type 2 diabetes (ClinicalTrials.gov identifier: NCT04691973). Users of the tool had reduced blood glucose, both compared with randomized and matched controls (involving 158 and 204 users, respectively), as well as improved systolic blood pressure, body weight and insulin resistance. The improvement was sustained during the entire follow-up (average 730 days). A pathophysiological subgroup of obese insulin-resistant individuals had a pronounced glycemic response, enabling identification of those who would benefit in particular from lifestyle treatment. Natural language processing showed that the metabolic improvement was coupled with the self-reflective element of the tool. The treatment is cost-saving because of improved risk factor control for cardiovascular complications. The findings open an avenue for self-managed lifestyle treatment with long-term metabolic efficacy that is cost-saving and can reach large numbers of people.
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Affiliation(s)
- Chinmay Dwibedi
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | | | | | - Annika S Axelsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | | | - Stephen H Friend
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Sofie Persson
- Swedish Institute for Health Economics, Lund, Sweden
| | - Stefan Franzén
- RegisterCentrum Västra Götaland, Göteborg, Sweden.,Health Metrics, Department of Public Health and Community Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Birgitta Abrahamsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | - Anders H Rosengren
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden. .,Faculty of Medicine, Lund University, Lund, Sweden.
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8
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Navas-Carretero S, San-Cristobal R, Siig Vestentoft P, Brand-Miller JC, Jalo E, Westerterp-Plantenga M, Simpson EJ, Handjieva-Darlenska T, Stratton G, Huttunen-Lenz M, Lam T, Muirhead R, Poppitt S, Pietiläinen KH, Adam T, Taylor MA, Handjiev S, McNarry MA, Hansen S, Brodie S, Silvestre MP, Macdonald IA, Boyadjieva N, Mackintosh KA, Schlicht W, Liu A, Larsen TM, Fogelholm M, Raben A, Martinez JA. Appraisal of Triglyceride-Related Markers as Early Predictors of Metabolic Outcomes in the PREVIEW Lifestyle Intervention: A Controlled Post-hoc Trial. Front Nutr 2021; 8:733697. [PMID: 34790686 PMCID: PMC8592084 DOI: 10.3389/fnut.2021.733697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/24/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Individuals with pre-diabetes are commonly overweight and benefit from dietary and physical activity strategies aimed at decreasing body weight and hyperglycemia. Early insulin resistance can be estimated via the triglyceride glucose index {TyG = Ln [TG (mg/dl) × fasting plasma glucose (FPG) (mg/dl)/2]} and the hypertriglyceridemic-high waist phenotype (TyG-waist), based on TyG x waist circumference (WC) measurements. Both indices may be useful for implementing personalized metabolic management. In this secondary analysis of a randomized controlled trial (RCT), we aimed to determine whether the differences in baseline TyG values and TyG-waist phenotype predicted individual responses to type-2 diabetes (T2D) prevention programs. Methods: The present post-hoc analyses were conducted within the Prevention of Diabetes through Lifestyle intervention and population studies in Europe and around the world (PREVIEW) study completers (n = 899), a multi-center RCT conducted in eight countries (NCT01777893). The study aimed to reduce the incidence of T2D in a population with pre-diabetes during a 3-year randomized intervention with two sequential phases. The first phase was a 2-month weight loss intervention to achieve ≥8% weight loss. The second phase was a 34-month weight loss maintenance intervention with two diets providing different amounts of protein and different glycemic indices, and two physical activity programs with different exercise intensities in a 2 x 2 factorial design. On investigation days, we assessed anthropometrics, glucose/lipid metabolism markers, and diet and exercise questionnaires under standardized procedures. Results: Diabetes-related markers improved during all four lifestyle interventions. Higher baseline TyG index (p < 0.001) was associated with greater reductions in body weight, fasting glucose, and triglyceride (TG), while a high TyG-waist phenotype predicted better TG responses, particularly in those randomized to physical activity (PA) of moderate intensity. Conclusions: Two novel indices of insulin resistance (TyG and TyG-waist) may allow for a more personalized approach to avoiding progression to T2D. Clinical Trial Registration: https://clinicaltrials.gov/ct2/show/NCT01777893 reference, identifier: NCT01777893.
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Affiliation(s)
- Santiago Navas-Carretero
- Center for Nutrition Research, University of Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red (CIBER) obn, Instituto de Salud Carlos III, Madrid, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | | | - Pia Siig Vestentoft
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jennie C Brand-Miller
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Elli Jalo
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Margriet Westerterp-Plantenga
- Department of Nutrition and Movement Sciences, NUTRIM, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Elizabeth J Simpson
- Division of Physiology, Pharmacology and Neuroscience, MRC/ARUK Centre for Musculoskeletal Ageing Research, ARUK Centre for Sport, Exercise and Osteoarthritis, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, School of Life Sciences, Queen's Medical Centre, Nottingham, United Kingdom
| | | | - Gareth Stratton
- Applied Sports Technology, Exercise and Medicine (A-STEM) Research Centre, College of Engineering, Swansea, United Kingdom
| | - Maija Huttunen-Lenz
- Institute of Nursing Science, University of Education, Schwäbisch Gmünd, Germany
| | - Tony Lam
- NetUnion Sarl, Lausanne, Switzerland
| | - Roslyn Muirhead
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Sally Poppitt
- Human Nutrition Unit, Department of Medicine, School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Kirsi H Pietiläinen
- Obesity Research Unit, Diabetes and Obesity Research Program, University of Helsinki and Endocrinology, Helsinki, Finland.,Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Tanja Adam
- Department of Nutrition and Movement Sciences, NUTRIM, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Moira A Taylor
- Division of Physiology, Pharmacology and Neuroscience, MRC/ARUK Centre for Musculoskeletal Ageing Research, ARUK Centre for Sport, Exercise and Osteoarthritis, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, School of Life Sciences, Queen's Medical Centre, Nottingham, United Kingdom
| | - Svetoslav Handjiev
- Department of Pharmacology and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Melitta A McNarry
- Applied Sports Technology, Exercise and Medicine (A-STEM) Research Centre, College of Engineering, Swansea, United Kingdom
| | - Sylvia Hansen
- Cologne Center for Ethics, Rights, Economics, and Social Sciences of Health, University of Cologne, Cologne, Germany
| | - Shannon Brodie
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Marta P Silvestre
- Human Nutrition Unit, Department of Medicine, School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Center for Health Technology Services Research (CINTESIS), NOVA Medical School, NMS, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Ian A Macdonald
- Division of Physiology, Pharmacology and Neuroscience, MRC/ARUK Centre for Musculoskeletal Ageing Research, ARUK Centre for Sport, Exercise and Osteoarthritis, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, School of Life Sciences, Queen's Medical Centre, Nottingham, United Kingdom
| | - Nadka Boyadjieva
- Department of Pharmacology and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Kelly A Mackintosh
- Applied Sports Technology, Exercise and Medicine (A-STEM) Research Centre, College of Engineering, Swansea, United Kingdom
| | - Wolfgang Schlicht
- Exercise and Health Sciences, University of Stuttgart, Nobelstraße, Germany
| | - Amy Liu
- Human Nutrition Unit, Department of Medicine, School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Thomas M Larsen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Mikael Fogelholm
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Anne Raben
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.,Steno Diabetes Centre Copenhagen, Gentofte, Denmark
| | - J Alfredo Martinez
- Center for Nutrition Research, University of Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red (CIBER) obn, Instituto de Salud Carlos III, Madrid, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
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9
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Varghese JS, Ho JC, Anjana RM, Pradeepa R, Patel SA, Jebarani S, Baskar V, Narayan KV, Mohan V. Profiles of Intraday Glucose in Type 2 Diabetes and Their Association with Complications: An Analysis of Continuous Glucose Monitoring Data. Diabetes Technol Ther 2021; 23:555-564. [PMID: 33720761 PMCID: PMC9839354 DOI: 10.1089/dia.2020.0672] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Aims: To identify profiles of type 2 diabetes from continuous glucose monitoring (CGM) data using ambulatory glucose profile (AGP) indicators and examine the association with prevalent complications. Methods: Two weeks of CGM data, collected between 2015 and 2019, from 5901 adult type 2 diabetes patients were retrieved from a clinical database in Chennai, India. Non-negative matrix factorization was used to identify profiles as per AGP indicators. The association of profiles with existing complications was examined using multinomial and logistic regressions adjusted for glycated hemoglobin (HbA1c; %), sex, age at onset, and duration of diabetes. Results: Three profiles of glycemic variability (GV) were identified based on CGM data-Profile 1 ["TIR Profile"] (n = 2271), Profile 2 ["Hypo"] (n = 1471), and Profile 3 ["Hyper"] (n = 2159). Compared with time in range (TIR) profile, those belonging to Hyper had higher mean fasting plasma glucose (202.9 vs. 167.1, mg/dL), 2-h postprandial plasma glucose (302.1 vs. 255.6, mg/dL), and HbA1c (9.7 vs. 8.6; %). Both "Hypo profile" and "Hyper profile" had higher odds of nonproliferative diabetic retinopathy ("Hypo": 1.44, 1.20-1.73; "Hyper": 1.33, 1.11-1.58), macroalbuminuria ("Hypo": 1.58, 1.25-1.98; "Hyper": 1.37, 1.10-1.71), and diabetic kidney disease (DKD; "Hypo": 1.65, 1.18-2.31; "Hyper": 1.88, 1.37-2.58), compared with "TIR profile." Those in "Hypo profile" (vs. "TIR profile") had higher odds of proliferative diabetic retinopathy (PDR; 2.84, 1.65-2.88). Conclusions: We have identified three profiles of GV from CGM data. While both "Hypo profile" and "Hyper profile" had higher odds of prevalent DKD compared with "TIR profile," "Hypo profile" had higher odds of PDR. Our study emphasizes the clinical importance of recognizing and treating hypoglycemia (which is often unrecognized without CGM) in patients with type 2 Diabetes Mellitus.
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Affiliation(s)
- Jithin Sam Varghese
- Nutrition and Health Sciences Doctoral Program, Laney School of Graduate Studies, Emory University, Atlanta, Georgia, USA
| | - Joyce C. Ho
- Department of Computer Science, Emory University, Atlanta, Georgia, USA
| | - Ranjit Mohan Anjana
- Department of Diabetology, Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, Chennai, India
| | - Rajendra Pradeepa
- Department of Diabetology, Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, Chennai, India
| | - Shivani A. Patel
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Saravanan Jebarani
- Department of Diabetology, Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, Chennai, India
| | - Viswanathan Baskar
- Department of Diabetology, Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, Chennai, India
| | - K.M. Venkat Narayan
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Viswanathan Mohan
- Department of Diabetology, Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, Chennai, India
- Address correspondence to: Viswanathan Mohan, MD, PhD, DSc, Department of Diabetology, Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, ICMR Centre for Advanced Research on Diabetes, Chennai 600 086, India
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10
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Sampson M, Clark A, Bachmann M, Garner N, Irvine L, Howe A, Greaves C, Auckland S, Smith J, Turner J, Rea D, Rayman G, Dhatariya K, John WG, Barton G, Usher R, Ferns C, Pascale M. Lifestyle Intervention With or Without Lay Volunteers to Prevent Type 2 Diabetes in People With Impaired Fasting Glucose and/or Nondiabetic Hyperglycemia: A Randomized Clinical Trial. JAMA Intern Med 2021; 181:168-178. [PMID: 33136119 PMCID: PMC7607494 DOI: 10.1001/jamainternmed.2020.5938] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
IMPORTANCE Nearly half of the older adult population has diabetes or a high-risk intermediate glycemic category, but we still lack trial evidence for effective type 2 diabetes prevention interventions in most of the current high-risk glycemic categories. OBJECTIVE To determine whether a group-based lifestyle intervention (with or without trained volunteers with type 2 diabetes) reduced the risk of progression to type 2 diabetes in populations with a high-risk glycemic category. DESIGN, SETTING, AND PARTICIPANTS The Norfolk Diabetes Prevention Study was a parallel, 3-arm, group-based, randomized clinical trial conducted with up to 46 months of follow-up from August 2011 to January 2019 at 135 primary care practices and 8 intervention sites in the East of England. We identified 141 973 people at increased risk of type 2 diabetes, screened 12 778 (9.0%), and randomized those with a high-risk glycemic category, which was either an elevated fasting plasma glucose level alone (≥110 and <126 mg/dL [to convert to millimoles per liter, multiply by 0.0555]) or an elevated glycated hemoglobin level (≥6.0% to <6.5%; nondiabetic hyperglycemia) with an elevated fasting plasma glucose level (≥100 to <110 mg/dL). INTERVENTIONS A control arm receiving usual care (CON), a theory-based lifestyle intervention arm of 6 core and up to 15 maintenance sessions (INT), or the same intervention with support from diabetes prevention mentors, trained volunteers with type 2 diabetes (INT-DPM). MAIN OUTCOMES AND MEASURES Type 2 diabetes incidence between arms. RESULTS In this study, 1028 participants were randomized (INT, 424 [41.2%] [166 women (39.2%)]; INT-DPM, 426 [41.4%] [147 women (34.5%)]; CON, 178 [17.3%] [70 women (%39.3)]) between January 1, 2011, and February 24, 2017. The mean (SD) age was 65.3 (10.0) years, mean (SD) body mass index 31.2 (5) (calculated as weight in kilograms divided by height in meters squared), and mean (SD) follow-up 24.7 (13.4) months. A total of 156 participants progressed to type 2 diabetes, which comprised 39 of 171 receiving CON (22.8%), 55 of 403 receiving INT (13.7%), and 62 of 414 receiving INT-DPM (15.0%). There was no significant difference between the intervention arms in the primary outcome (odds ratio [OR], 1.14; 95% CI, 0.77-1.7; P = .51), but each intervention arm had significantly lower odds of type 2 diabetes (INT: OR, 0.54; 95% CI, 0.34-0.85; P = .01; INT-DPM: OR, 0.61; 95% CI, 0.39-0.96; P = .033; combined: OR, 0.57; 95% CI, 0.38-0.87; P = .01). The effect size was similar in all glycemic, age, and social deprivation groups, and intervention costs per participant were low at $153 (£122). CONCLUSIONS AND RELEVANCE The Norfolk Diabetes Prevention lifestyle intervention reduced the risk of type 2 diabetes in current high-risk glycemic categories. Enhancing the intervention with DPM did not further reduce diabetes risk. These translatable results are relevant for current diabetes prevention efforts. TRIAL REGISTRATION ISRCTN Registry Identifier: ISRCTN34805606.
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Affiliation(s)
- Michael Sampson
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England.,Norwich Medical School, University of East Anglia, Norwich, England
| | - Allan Clark
- Norwich Medical School, University of East Anglia, Norwich, England
| | - Max Bachmann
- Norwich Medical School, University of East Anglia, Norwich, England
| | - Nikki Garner
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - Lisa Irvine
- Norwich Medical School, University of East Anglia, Norwich, England
| | - Amanda Howe
- Norwich Medical School, University of East Anglia, Norwich, England
| | - Colin Greaves
- School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, Birmingham, England.,University of Exeter Medical School, College of Medicine & Health, University of Exeter, Exeter, England
| | - Sara Auckland
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - Jane Smith
- Norwich Medical School, University of East Anglia, Norwich, England.,University of Exeter Medical School, College of Medicine & Health, University of Exeter, Exeter, England
| | - Jeremy Turner
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - Dave Rea
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - Gerry Rayman
- Department of Diabetes and Endocrinology, Ipswich General Hospital, Ipswich, England
| | - Ketan Dhatariya
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - W Garry John
- Department Clinical Biochemistry, Norfolk and Norwich University Hospital NHS Trust, Norwich, England
| | - Garry Barton
- Norwich Medical School, University of East Anglia, Norwich, England
| | - Rebecca Usher
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - Clare Ferns
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
| | - Melanie Pascale
- Elsie Bertram Diabetes Centre, Department of Diabetes and Endocrinology, Norfolk and Norwich University Hospital National Health Service Trust, Norwich, England
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11
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Ward K, Mulder E, Frings-Meuthen P, O'Gorman DJ, Cooper D. Fetuin-A as a Potential Biomarker of Metabolic Variability Following 60 Days of Bed Rest. Front Physiol 2020; 11:573581. [PMID: 33192574 PMCID: PMC7604312 DOI: 10.3389/fphys.2020.573581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Fetuin-A is a hepatokine linked to the development of insulin resistance. The purpose of this study was to determine if 60 days head-down-tilt (HDT) bed rest increased circulating fetuin-A and if it was linked to whole body insulin sensitivity (IS). Additionally, we examined whether reactive jump training (RJT) could alleviate the metabolic changes associated with bed rest. Methods: 23 young men (29 ± 6 years, 181 ± 6 cm, 77 ± 7 kg) were randomized to a control (CTRL, n = 11) or RJT group (JUMP, n = 12) and exposed to 60 days of bed rest. Before and after bed rest, body composition and V . O 2 p e a k were measured and an oral glucose tolerance test was performed to estimate IS. Circulating lipids and fetuin-A were measured in fasting serum. Results: Body weight, lean mass, and V . O 2 p e a k decreased in both groups following bed rest, with greater reductions in CTRL (p < 0.05). There was a main effect of time, but not the RJT intervention, for the increase in fetuin-A, triglycerides (TG), area under the curve for glucose (AUCG) and insulin (AUCI), and the decrease in Matsuda and tissue-specific IS (p < 0.05). Fetuin-A increased in participants who became less insulin sensitive (p = 0.019). In this subgroup, liver IS and adipose IS decreased (p < 0.05), while muscle IS was unchanged. In a subgroup, where IS did not decrease, fetuin-A did not change. Liver IS increased (p = 0.012), while muscle and adipose tissue IS remained unchanged. Conclusions: In this study, we report an increase in circulating fetuin-A following 60 days of bed rest, concomitant with reduced IS, which could not be mitigated by RJT. The amount of fetuin-A released from the liver may be an important determinant of changes in whole body IS. In this regard, it may also be a useful biomarker of individual variation due to inactivity or lifestyle interventions.
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Affiliation(s)
- Kiera Ward
- Faculty of Science and Health, Athlone Institute of Technology, Athlone, Ireland
| | - Edwin Mulder
- Department of Muscle and Bone Metabolism, Institute of Aerospace Medicine, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR), Cologne, Germany
| | - Petra Frings-Meuthen
- Department of Muscle and Bone Metabolism, Institute of Aerospace Medicine, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR), Cologne, Germany
| | - Donal J O'Gorman
- 3U Diabetes Partnership, School of Health and Human Performance, Dublin City University, Dublin, Ireland.,National Institute for Cellular Biotechnology, Dublin City University, Dublin, Ireland
| | - Diane Cooper
- Faculty of Science and Health, Athlone Institute of Technology, Athlone, Ireland
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12
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Ramírez-Vélez R, Izquierdo M, Castro-Astudillo K, Medrano-Mena C, Monroy-Díaz AL, Castellanos-Vega RDP, Triana-Reina HR, Correa-Rodríguez M. Weight Loss after 12 Weeks of Exercise and/or Nutritional Guidance Is Not Obligatory for Induced Changes in Local Fat/Lean Mass Indexes in Adults with Excess of Adiposity. Nutrients 2020; 12:nu12082231. [PMID: 32722652 PMCID: PMC7468717 DOI: 10.3390/nu12082231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 01/17/2023] Open
Abstract
The objectives of this secondary analysis are (1) to investigate the differential effects of exercise training modalities-high-intensity interval training (HIIT), resistance training (RT), combined training (CT = HIIT + RT), and/or nutritional guidance (NG) alone-on local fat/lean mass indexes in adults with excess of adiposity; (2) to identify the individual patterns of response based on either a clinical criterion of weight loss (≥5%) and/or technical error (TE) of measurement of local fat/lean mass indexes; and (3) to assess the individual change for body composition parameters assigned either to HIIT, RT, CT, and/or NG groups utilizing a TE. A 12-week trial was conducted in 55 participants randomized to one of the four interventions. The primary outcome was clinical change in body weight (i.e., weight loss of ≥5%). Secondary outcomes included change in ratio of android and gynoid fat mass, as well as local fat and lean mass indexes (arms, trunk, and legs), before and after intervention. The main findings from the current analysis revealed that (i) after 12 weeks of follow-up, significant decreases in several body composition indexes were found including body weight, arm, trunk, and legs fat mass, and android and gynecoid fat mass were observed in HIIT, RT, and CT groups (p < 0.05); (ii) a significant proportion of individuals showed a positive response following 12 weeks of training, led by the HIIT group with 44% and followed by RT with 39% in 9 indexes; (iii) the HIIT group showed lowest rates of adverse responders with (6%); and (iv) the individual patterns of response utilizing clinically meaningful weight loss were not necessarily associated with the corresponding individual training-induced changes in body composition indexes in adults with excess of adiposity. Overall, the study suggests that HIIT has an important ability to reduce the prevalence of non-response to improve body composition indexes.
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Affiliation(s)
- Robinson Ramírez-Vélez
- Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Navarra, Spain;
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-695-526-321
| | - Mikel Izquierdo
- Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Navarra, Spain;
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Karem Castro-Astudillo
- Centro de Acondicionamiento Físico y Nutrición, KCFIT, Santiago de Cali, Valle 760011, Colombia;
| | - Carolina Medrano-Mena
- Facultad de Organización Deportiva, Universidad Autónoma de Nuevo León, Nuevo León 66455, Mexico;
| | - Angela Liliana Monroy-Díaz
- Programa de Bacteriología y Laboratorio Clínico, Facultad de Ciencias de la Salud-Universidad de Boyacá, Tunja 150003, Boyacá, Colombia;
| | | | - Héctor Reynaldo Triana-Reina
- Grupo GICAEDS, Programa de Cultura Física, Deporte y Recreación, Universidad Santo Tomás, Bogotá 110311, Colombia;
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13
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Campbell MD, Sathish T, Zimmet PZ, Thankappan KR, Oldenburg B, Owens DR, Shaw JE, Tapp RJ. Benefit of lifestyle-based T2DM prevention is influenced by prediabetes phenotype. Nat Rev Endocrinol 2020; 16:395-400. [PMID: 32060416 DOI: 10.1038/s41574-019-0316-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/23/2019] [Indexed: 01/11/2023]
Abstract
The prevention of type 2 diabetes mellitus (T2DM) is a target priority for the WHO and the United Nations and is a key priority in the 2018 Berlin Declaration, which is a global call for early actions related to T2DM. Health-care policies advocate that individuals at high risk of developing T2DM undertake lifestyle modification, irrespective of whether the prediabetes phenotype is defined by hyperglycaemia in the postprandial state (impaired glucose tolerance) and/or fasting state (impaired fasting glucose) or by intermediate HbA1c levels. However, current evidence indicates that diabetes prevention programmes based on lifestyle change have not been successful in preventing T2DM in individuals with isolated impaired fasting glucose. We propose that further research is needed to identify effective lifestyle interventions for individuals with isolated impaired fasting glucose. Furthermore, we call for the identification of innovative approaches that better identify people with impaired glucose tolerance, who benefit from the currently available lifestyle-based diabetes prevention programmes.
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Affiliation(s)
- Matthew D Campbell
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
- School of Food Science and Bioengineering, Zhejiang Gongshang University, Hangzhou, China
| | - Thirunavukkarasu Sathish
- Population Health Research Institute, McMaster University, Hamilton, ON, Canada
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
- Centre for Population Health Sciences, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Paul Z Zimmet
- Department of Diabetes, Central Clinical School, Monash University, Clayton, VIC, Australia
| | | | - Brian Oldenburg
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
- WHO Collaborating Centre on Implementation Research for Prevention and Control of Noncommunicable Diseases, University of Melbourne, Melbourne, VIC, Australia
| | - David R Owens
- Diabetes Research Unit Cymru, Swansea University, Swansea, UK
| | - Jonathan E Shaw
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Robyn J Tapp
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia.
- Population Health Research Institute, St George's, University of London, London, UK.
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14
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Brennan AM, Standley RA, Yi F, Carnero EA, Sparks LM, Goodpaster BH. Individual Response Variation in the Effects of Weight Loss and Exercise on Insulin Sensitivity and Cardiometabolic Risk in Older Adults. Front Endocrinol (Lausanne) 2020; 11:632. [PMID: 33013705 PMCID: PMC7511700 DOI: 10.3389/fendo.2020.00632] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/04/2020] [Indexed: 12/29/2022] Open
Abstract
Weight loss induced by decreased energy intake (diet) or exercise generally has favorable effects on insulin sensitivity and cardiometabolic risk. The variation in these responses to diet-induced weight loss with or without exercise, particularly in older obese adults, is less clear. The objectives of our study were to (1) examine the effect of weight loss with or without exercise on the variability of responses in insulin sensitivity and cardiometabolic risk factors and (2) to explore whether baseline phenotypic characteristics are associated with response. Sedentary older obese (BMI 36.3 ± 5.0 kg/m2) adults (68.6 ± 4.7 years) were randomized to one of 3 groups: health education control (HED); diet-induced weight loss (WL); or weight loss and exercise (WL + EX) for 6 months. Composite Z-scores were calculated for changes in insulin sensitivity (C_IS: rate of glucose disposal/insulin at steady state during hyperinsulinemic euglycemic clamp, HOMA-IR, and HbA1C) and cardiometabolic risk (C_CMR: waist circumference, triglycerides, and fasting glucose). Baseline measures included body composition (MRI), cardiorespiratory fitness, in vivo mitochondrial function (ATPmax; P-MRS), and muscle fiber type. WL + EX groups had a greater proportion of High Responders in both C_IS and C_CMR compared to HED and WL only (all p < 0.05). Pre-intervention measures of insulin (r = 0.60) and HOMA-IR (r = 0.56) were associated with change in insulin sensitivity (C_IS) in the WL group (p < 0.05). Pre-intervention measures of glucose (r = 0.55), triglycerides (r = 0.53), and VLDL (r = 0.53) were associated with change in cardiometabolic risk (C_CMR) in the WL group (p < 0.05), whereas triglycerides (r = 0.59) and VLDL (r = 0.59) were associated with C_CMR (all p < 0.05) in WL + EX. Thus, the addition of exercise to diet-induced weight loss increases the proportion of older obese adults who improve insulin sensitivity and cardiometabolic risk. Additionally, individuals with poorer metabolic status are more likely to experience greater improvements in cardiometabolic risk during weight loss with or without exercise.
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15
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Xiong Z, Li J, Zhong X, Zhang S, Sun X, Zhou H, Chen Y, Zhuang X, Liao X. Visit-to-Visit Fasting Glucose Variability in Young Adulthood and Hippocampal Integrity and Volume at Midlife. Diabetes Care 2019; 42:2334-2337. [PMID: 31548243 PMCID: PMC7364671 DOI: 10.2337/dc19-0834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/30/2019] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To determine whether visit-to-visit fasting glucose (VVFG) variability in young adulthood is associated with midlife hippocampal integrity and volume. RESEARCH DESIGN AND METHODS Multivariable-adjusted linear regression models were used to estimate the association between VVFG variability and brain MRI variables in 543 CARDIA study participants. VVFG variability was defined by the SD of FG (SDFG), the coefficient of variation of the mean FG (CVFG), and the average real variability (ARVFG) over 25 years of follow-up. Hippocampal integrity fractional anisotropy (FA) and tissue volume standardized to intracranial volume were measured by 3T MRI at year 25. RESULTS After multivariable adjustment, higher FG variability (1-SD increase) was associated with lower hippocampal FA (SDFG -0.015 [95% CI -0.026, -0.004]; CVFG -0.009 [95% CI -0.018, -0.001]; ARVFG -0.011 [95% CI -0.019, -0.002]) and lower hippocampal volume (SDFG -0.012 [95% CI -0.023, -0.001]). CONCLUSIONS Higher VVFG variability in young adulthood is associated with lower midlife hippocampal integrity and volume, suggesting its value in predicting risk for hippocampal structural damage.
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Affiliation(s)
- Zhenyu Xiong
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Jiaying Li
- Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Xiangbin Zhong
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Shaozhao Zhang
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Xiuting Sun
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Huimin Zhou
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Yunzhi Chen
- The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaodong Zhuang
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
- Center for Information Technology & Statistics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xinxue Liao
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory on Assisted Circulation, Sun Yat-sen University, Guangzhou, China
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