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Tai YL, Marupudi S, Figueroa GA, Russell RD. Hemodynamics and Arterial Stiffness in Response to Oral Glucose Loading in Individuals with Type II Diabetes and Controlled Hypertension. High Blood Press Cardiovasc Prev 2023; 30:175-181. [PMID: 36913100 DOI: 10.1007/s40292-023-00569-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023] Open
Abstract
INTRODUCTION Type 2 diabetes (T2D), the fastest growing pandemic, is typically accompanied by vascular complications. A central hallmark of both T2D and vascular disease is insulin resistance which causes impaired glucose transport and vasoconstriction concomitantly. Those with cardiometabolic disease display greater variation in central hemodynamics and arterial elasticity, both potent predictors of cardiovascular morbidity and mortality, which may be exacerbated by concomitant hyperglycemia and hyperinsulinemia during glucose testing. Thus, elucidating central and arterial responses to glucose testing in those with T2D may identify acute vascular pathophysiologies triggered by oral glucose loading. AIM This study compared hemodynamics and arterial stiffness to an oral glucose challenge (OGC: 50g glucose) between individuals with and without T2D. 21 healthy (48 ± 10 years) and 20 participants with clinically diagnosed T2D and controlled hypertension (52 ± 8 years) were tested. METHODS Hemodynamics and arterial compliance were assessed at baseline, and 10, 20, 30, 40, 50, and 60 min post-OGC. RESULTS Heart rate increased between 20 and 60 post-OGC in both groups (p < 0.05). Central systolic blood pressure (SBP) decreased in the T2D group between 10 and 50 min post-OGC while central diastolic blood pressure (DBP) decreased in both groups from 20 to 60 post-OGC. Central SBP decreased in T2D between 10 and 50 min post-OGC and central DBP decreased in both groups between 20 and 60 min post-OGC. Brachial SBP decreased between 10 and 50 min in healthy participants, whereas both groups displayed decreases in brachial DBP between 20 and 60 min post-OGC. Arterial stiffness was unaffected. CONCLUSIONS An OGC alters central and peripheral blood pressure in healthy and T2D participants similarly with no changes in arterial stiffness.
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Affiliation(s)
- Yu Lun Tai
- Department of Health and Human Performance, College of Health Professions, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Smaran Marupudi
- Department of Health and Human Performance, College of Health Professions, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Gabriel A Figueroa
- Department of Health and Human Performance, College of Health Professions, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Ryan D Russell
- Department of Health and Human Performance, College of Health Professions, University of Texas Rio Grande Valley, Brownsville, TX, USA.
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Lagacé JC, Paquin J, Tremblay R, St-Martin P, Tessier D, Plourde M, Riesco E, Dionne IJ. The Influence of Family History of Type 2 Diabetes on Metabolism during Submaximal Aerobic Exercise and in the Recovery Period in Postmenopausal Women. Nutrients 2022; 14:4638. [PMID: 36364900 PMCID: PMC9653898 DOI: 10.3390/nu14214638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2023] Open
Abstract
Aging and family history of type 2 diabetes (T2D) are known risk factors of T2D. Younger first-degree relatives (FDR) of T2D patients have shown early metabolic alterations, which could limit exercise's ability to prevent T2D. Thus, the objective was to determine whether exercise metabolism was altered during submaximal exercise in FDR postmenopausal women. Nineteen inactive postmenopausal women (control: 10, FDR: 9) aged 60 to 75 years old underwent an incremental test on a cycle ergometer with intensity ranging from 40 to 70% of peak power output. Participants consumed 50 mg of 13C-palmitate 2 h before the test. At the end of each stage, glucose, lactate, glycerol, non-esterified fatty acids and 13C-palmitate were measured in plasma, and 13CO2 was measured in breath samples. Gas exchanges and heart rate were both monitored continuously. There were no between-group differences in substrate oxidation, plasma substrate concentrations or 13C recovered in plasma or breath. Interestingly, despite exercising at a similar relative intensity to control, FDR were consistently at a lower percentage of heart rate reserve. Overall, substrate plasma concentration and oxidation are not affected by family history of T2D in postmenopausal women and therefore not a participating mechanism in the altered response to exercise previously reported. More studies are required to better understand the mechanisms involved in this response.
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Affiliation(s)
- Jean-Christophe Lagacé
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Jasmine Paquin
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Renaud Tremblay
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Philippe St-Martin
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Daniel Tessier
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Medicine and Health Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Mélanie Plourde
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Medicine and Health Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Eléonor Riesco
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Isabelle J. Dionne
- Research Centre on Aging, Affiliated with CIUSSS de l’Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada
- Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l’Université, Sherbrooke, QC J1K 2R1, Canada
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Russell RD, Roberts-Thomson KM, Hu D, Greenaway T, Betik AC, Parker L, Sharman JE, Richards SM, Rattigan S, Premilovac D, Wadley GD, Keske MA. Impaired postprandial skeletal muscle vascular responses to a mixed meal challenge in normoglycaemic people with a parent with type 2 diabetes. Diabetologia 2022; 65:216-225. [PMID: 34590175 DOI: 10.1007/s00125-021-05572-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
AIMS/HYPOTHESIS Microvascular blood flow (MBF) increases in skeletal muscle postprandially to aid in glucose delivery and uptake in muscle. This vascular action is impaired in individuals who are obese or have type 2 diabetes. Whether MBF is impaired in normoglycaemic people at risk of type 2 diabetes is unknown. We aimed to determine whether apparently healthy people at risk of type 2 diabetes display impaired skeletal muscle microvascular responses to a mixed-nutrient meal. METHODS In this cross-sectional study, participants with no family history of type 2 diabetes (FH-) for two generations (n = 18), participants with a positive family history of type 2 diabetes (FH+; i.e. a parent with type 2 diabetes; n = 16) and those with type 2 diabetes (n = 12) underwent a mixed meal challenge (MMC). Metabolic responses (blood glucose, plasma insulin and indirect calorimetry) were measured before and during the MMC. Skeletal muscle large artery haemodynamics (2D and Doppler ultrasound, and Mobil-O-graph) and microvascular responses (contrast-enhanced ultrasound) were measured at baseline and 1 h post MMC. RESULTS Despite normal blood glucose concentrations, FH+ individuals displayed impaired metabolic flexibility (reduced ability to switch from fat to carbohydrate oxidation vs FH-; p < 0.05) during the MMC. The MMC increased forearm muscle microvascular blood volume in both the FH- (1.3-fold, p < 0.01) and FH+ (1.3-fold, p < 0.05) groups but not in participants with type 2 diabetes. However, the MMC increased MBF (1.9-fold, p < 0.01), brachial artery diameter (1.1-fold, p < 0.01) and brachial artery blood flow (1.7-fold, p < 0.001) and reduced vascular resistance (0.7-fold, p < 0.001) only in FH- participants, with these changes being absent in FH+ and type 2 diabetes. Participants with type 2 diabetes displayed significantly higher vascular stiffness (p < 0.001) compared with those in the FH- and FH+ groups; however, vascular stiffness did not change during the MMC in any participant group. CONCLUSIONS/INTERPRETATION Normoglycaemic FH+ participants display impaired postprandial skeletal muscle macro- and microvascular responses, suggesting that poor vascular responses to a meal may contribute to their increased risk of type 2 diabetes. We conclude that vascular insulin resistance may be an early precursor to type 2 diabetes in humans, which can be revealed using an MMC.
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Affiliation(s)
- Ryan D Russell
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- Department of Health and Human Performance, College of Health Professions, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Katherine M Roberts-Thomson
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Donghua Hu
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Timothy Greenaway
- Tasmanian School of Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Andrew C Betik
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Lewan Parker
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - James E Sharman
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Stephen M Richards
- Tasmanian School of Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Stephen Rattigan
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Dino Premilovac
- Tasmanian School of Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Glenn D Wadley
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Michelle A Keske
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
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Altered Metabolic Flexibility in Inherited Metabolic Diseases of Mitochondrial Fatty Acid Metabolism. Int J Mol Sci 2021; 22:ijms22073799. [PMID: 33917608 PMCID: PMC8038842 DOI: 10.3390/ijms22073799] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 12/14/2022] Open
Abstract
In general, metabolic flexibility refers to an organism's capacity to adapt to metabolic changes due to differing energy demands. The aim of this work is to summarize and discuss recent findings regarding variables that modulate energy regulation in two different pathways of mitochondrial fatty metabolism: β-oxidation and fatty acid biosynthesis. We focus specifically on two diseases: very long-chain acyl-CoA dehydrogenase deficiency (VLCADD) and malonyl-CoA synthetase deficiency (acyl-CoA synthetase family member 3 (ACSF3)) deficiency, which are both characterized by alterations in metabolic flexibility. On the one hand, in a mouse model of VLCAD-deficient (VLCAD-/-) mice, the white skeletal muscle undergoes metabolic and morphologic transdifferentiation towards glycolytic muscle fiber types via the up-regulation of mitochondrial fatty acid biosynthesis (mtFAS). On the other hand, in ACSF3-deficient patients, fibroblasts show impaired mitochondrial respiration, reduced lipoylation, and reduced glycolytic flux, which are compensated for by an increased β-oxidation rate and the use of anaplerotic amino acids to address the energy needs. Here, we discuss a possible co-regulation by mtFAS and β-oxidation in the maintenance of energy homeostasis.
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Allerton TD, Irving BA, Spielmann G, Primeaux S, Landin D, Nelson A, Johannsen NM. Metabolic flexibility is impaired in response to acute exercise in the young offspring of mothers with type 2 diabetes. Physiol Rep 2019; 7:e14189. [PMID: 31496022 PMCID: PMC6732566 DOI: 10.14814/phy2.14189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/26/2019] [Accepted: 06/26/2019] [Indexed: 11/24/2022] Open
Abstract
We assessed metabolic flexibility (MF) via a mixed meal in a group of young, healthy participants with a positive family history of maternal type 2 diabetes (T2D) (FH+) and those without a family history of T2D (FH-) under three distinct conditions; baseline (BL; no previous exercise), 1-h post high intensity interval exercise (1H), and 48-h post exercise recovery. On separate visits, participants completed a single bout of high intensity interval exercise (HIIE) and repeated the MMTT 1-h (1H) and 48 h (48H) postexercise. FH+ participants were not able to suppress fat oxidation 1-h post exercise (1H) as effectively as FH- participants were, however, this response was improved when measured at the 48H visit. Insulin AUC was significantly lowered at both 1H and 48H when compared to the BL visit. Serum NEFA AUC was elevated 1-h post exercise, when compared to BL, but was significantly reduced at the 48H visit. Young, healthy participants with a maternal history of T2D demonstrate impaired MF (related to the inability to suppress fat oxidation) in response to acute HIIE (1H) that was improved 48H. The overall effect of HIIE showed improved insulin AUC and NEFA AUC up to 48H post that did not differ by FH.
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Affiliation(s)
| | - Brian A. Irving
- School of KinesiologyLouisiana State UniversityBaton RougeLouisiana
- Human GenomicsPennington Biomedical Research CenterBaton RougeLouisiana
| | - Guillaume Spielmann
- School of KinesiologyLouisiana State UniversityBaton RougeLouisiana
- Human GenomicsPennington Biomedical Research CenterBaton RougeLouisiana
| | - Stefany Primeaux
- Department of PhysiologyLouisiana State University Health Science CenterNew OrleansLouisiana
| | - Dennis Landin
- School of KinesiologyLouisiana State UniversityBaton RougeLouisiana
| | - Arnold Nelson
- School of KinesiologyLouisiana State UniversityBaton RougeLouisiana
| | - Neil M. Johannsen
- School of KinesiologyLouisiana State UniversityBaton RougeLouisiana
- Preventative MedicinePennington Biomedical Research CenterBaton RougeLouisiana
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Wehbe Z, Alatibi K, Jellusova J, Spiekerkoetter U, Tucci S. The fate of medium-chain fatty acids in very long-chain acyl‑CoA dehydrogenase deficiency (VLCADD): A matter of sex? Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:1591-1605. [PMID: 31394165 DOI: 10.1016/j.bbalip.2019.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/10/2019] [Accepted: 08/02/2019] [Indexed: 12/22/2022]
Abstract
Medium-chain-triglycerides (MCT) are widely applied in the treatment of long-chain fatty acid oxidation disorders (lcFAOD). Long-term treatment with MCT led to a sexually dimorphic response in the mouse model of very-long-chain-acyl-CoA-dehydrogenase-deficiency (VLCAD-/-) with the subsequent development of a metabolic syndrome in female mice. In order to evaluate the molecular mechanisms responsible for this sex specific response we performed a comprehensive metabolic phenotyping, SILAC-based quantitative proteomics and characterized the involved signaling pathways by western blot analysis and gene expression. WT and VLCAD-/- mice showed strong sex-dependent differences in basal metabolism and expression of proteins involved in the distinct metabolic pathways, even more prominent after treatment with octanoate. The investigation of molecular mechanisms responsible for the sexual dimorphisms delineated the selective activation of the ERK/mTORc1 signaling pathway leading to an increased biosynthesis and elongation of fatty acids in VLCAD-/- females. In contrast, octanoate induced the activation of ERK/PPARγ pathway and the subsequent upregulation of peroxisomal β‑oxidation in males. We here provide first evidence that sex has to be considered as important variable in disease phenotype. These findings may have implications on treatment strategies in the different sexes.
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Affiliation(s)
- Zeinab Wehbe
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Mathildenstrasse 1, Freiburg, Germany; University of Freiburg, Faculty of Biology, Schaenzlestrasse 1, D-79104 Freiburg, Germany
| | - Khaled Alatibi
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Mathildenstrasse 1, Freiburg, Germany; University of Freiburg, Faculty of Biology, Schaenzlestrasse 1, D-79104 Freiburg, Germany
| | - Julia Jellusova
- Department of Molecular Immunology, Institute of Biology III at the Faculty of Biology, Albert-Ludwigs-University of Freiburg, Schänzlestr. 1, 79104 Freiburg, Germany; Signalling Research Centres BIOSS and CIBSS, Albert-Ludwigs-University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany
| | - Ute Spiekerkoetter
- Department of General Pediatrics and Adolescent Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Mathildenstrasse 1, Freiburg, Germany
| | - Sara Tucci
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Mathildenstrasse 1, Freiburg, Germany.
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Hu D, Remash D, Russell RD, Greenaway T, Rattigan S, Squibb KA, Jones G, Premilovac D, Richards SM, Keske MA. Impairments in Adipose Tissue Microcirculation in Type 2 Diabetes Mellitus Assessed by Real-Time Contrast-Enhanced Ultrasound. Circ Cardiovasc Imaging 2019; 11:e007074. [PMID: 29650791 DOI: 10.1161/circimaging.117.007074] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 02/22/2018] [Indexed: 01/07/2023]
Abstract
BACKGROUND In obesity and type 2 diabetes mellitus (T2D), adipose tissue expansion (because of larger adipocytes) results in reduced microvascular density which is thought to lead to adipocyte hypoxia, inflammation, and reduced nutrient delivery to the adipocyte. Adipose tissue microvascular responses in humans with T2D have not been extensively characterized. Furthermore, it has not been determined whether impaired microvascular responses in human adipose tissue are most closely associated with adiposity, inflammation, or altered metabolism. METHODS AND RESULTS Overnight-fasted healthy controls (n=24, 9 females/15 males) and people with T2D (n=21, 8 females/13 males) underwent a body composition scan (dual-energy X-ray absorptiometry), an oral glucose challenge (50 g glucose) and blood analysis of clinical chemistries and inflammatory markers. Abdominal subcutaneous adipose tissue microvascular responses were measured by contrast-enhanced ultrasound at baseline and 1-hour post-oral glucose challenge. Adipose tissue microvascular blood volume was significantly elevated in healthy subjects 1-hour post-oral glucose challenge; however, this effect was absent in T2D. Adipose tissue microvascular blood flow was lower in people with T2D at baseline and was significantly blunted post-oral glucose challenge compared with controls. Adipose tissue microvascular blood flow was negatively associated with truncal fat (%), glucoregulatory function, fasting triglyceride and nonesterified fatty acid levels, and positively associated with insulin sensitivity. Truncal fat (%), systolic blood pressure, and insulin sensitivity were the only correlates with microvascular blood volume. Systemic inflammation was not associated with adipose tissue microvascular responses. CONCLUSIONS Impaired microvascular function in adipose tissue during T2D is not conditionally linked to systemic inflammation but is associated with other characteristics of the metabolic syndrome (obesity, insulin resistance, hyperglycemia, and dyslipidemia).
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Affiliation(s)
- Donghua Hu
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Devika Remash
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Ryan D Russell
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Timothy Greenaway
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Stephen Rattigan
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Kathryn A Squibb
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Graeme Jones
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Dino Premilovac
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Stephen M Richards
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.)
| | - Michelle A Keske
- Menzies Institute for Medical Research (D.H., R.D.R., S.R., K.A.S., G.J., S.M.R., M.A.K.) and School of Medicine (D.R., T.G., D.P., S.M.R.), University of Tasmania, Hobart, TAS Australia; Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville TX, (R.D.R.); Royal Hobart Hospital, TAS, Australia (T.G.); Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia (M.A.K.); and Department of Pharmacology, Anhui Medical University, Hefei, China (D.H.).
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Rodrigues-Krause J, Farinha JB, Ramis TR, Macedo RCO, Boeno FP, Dos Santos GC, Vargas J, Lopez P, Grazioli R, Costa RR, Pinto RS, Krause M, Reischak-Oliveira A. Effects of dancing compared to walking on cardiovascular risk and functional capacity of older women: A randomized controlled trial. Exp Gerontol 2018; 114:67-77. [PMID: 30389581 DOI: 10.1016/j.exger.2018.10.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Aging is characterized by reductions in lean mass simultaneously to increases in visceral adipose tissue, elevating cardiovascular risk (CVR) and physical dependence. Dancing has been recommended for improving fall-risk and CVR, however, comparisons with traditional exercises are limited. This study aimed to compare the effects of dancing with walking on CVR and functionality of older women. METHODS Thirty sedentary women (65 ± 5 years, BMI 27 ± 4 kg/m2) were randomized into three groups (n = 10/group): dancing, walking or stretching (active control). All interventions lasted 8 weeks (60 min sessions): dancing/walking 3×/week, stretching 1×/week. Dancing: several styles, no partner. Walking: treadmill, 60% peak oxygen consumption (VO2peak). Stretching: large muscle groups, no discomfort. Before and after interventions assessments: VO2peak (primary outcome), total cholesterol, HDL-C, LDL-C, glucose, insulin, CRP, TNF-α, waist and hip circumferences, visceral adipose tissue (VAT), muscle thickness, maximal muscle strength/power, static and dynamic balance, gait ability, flexibility, chair-raise and level of physical activity (PA). STATISTICS generalized estimating equations, post-hoc LSD (p < 0.05), SPSS 22.0. RESULTS (Mean-CI): (before vs after): group vs time interaction showed increases in VO2peak (mL·kg-1·min-1) for dancing 23.3 (20.8-25.8) vs 25.6 (23.4-27.8), and walking 23.4 (21.3-25.5) vs 27.0 (25.4-28.6), with no differences for stretching 23.5 (21.3-25.7) vs 23.0 (21.0-24.9). Lower body muscle power and static balance also improved for dancing and walking, but not for stretching. Main time effect showed improvements in CRP, TNF-α, LDL-C, HDL-C, VAT, waist, hip, chair raise, flexibility and level of daily PA for all groups. CONCLUSION Dancing induced similar increases in VO2peak, lower body muscle power and static balance as walking, while the stretching group remained unchanged. Pooled effects showed improvements in body composition, lipid and inflammatory profile, which are supported by increased PA levels. TRIAL REGISTRATION NCT03262714.
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Affiliation(s)
- Josianne Rodrigues-Krause
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil.
| | - Juliano Boufleur Farinha
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Thiago Ronzales Ramis
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Rodrigo Cauduro Oliveira Macedo
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil; Santa Cruz do Sul University (UNISC), Santa Cruz, RS, Brazil
| | - Francesco Pinto Boeno
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Gabriela Cristina Dos Santos
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - João Vargas
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Pedro Lopez
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Rafael Grazioli
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Rochelle Rocha Costa
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Ronei Silveira Pinto
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
| | - Mauricio Krause
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX), Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alvaro Reischak-Oliveira
- Federal University of Rio Grande do Sul, School of Physical Education, Physiotherapy and Dance, Porto Alegre, RS, Brazil
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9
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de Lemos Muller CH, Rech A, Botton CE, Schroeder HT, Bock PM, Farinha JB, Lopez P, Schöler CM, Grigolo GB, Coelho J, Kowalewski LS, Rodrigues MIL, de Azevedo MA, Quincozes-Santos A, Rodrigues-Krause J, Reischak-Oliveira A, Pinto RS, De Vito G, de Bittencourt Júnior PIH, Krause M. Heat-induced extracellular HSP72 release is blunted in elderly diabetic people compared with healthy middle-aged and older adults, but it is partially restored by resistance training. Exp Gerontol 2018; 111:180-187. [DOI: 10.1016/j.exger.2018.07.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/19/2018] [Accepted: 07/23/2018] [Indexed: 01/08/2023]
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10
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Russell RD, Hu D, Greenaway T, Blackwood SJ, Dwyer RM, Sharman JE, Jones G, Squibb KA, Brown AA, Otahal P, Boman M, Al-Aubaidy H, Premilovac D, Roberts CK, Hitchins S, Richards SM, Rattigan S, Keske MA. Skeletal Muscle Microvascular-Linked Improvements in Glycemic Control From Resistance Training in Individuals With Type 2 Diabetes. Diabetes Care 2017; 40:1256-1263. [PMID: 28687542 DOI: 10.2337/dc16-2750] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 06/16/2017] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Insulin increases glucose disposal in part by enhancing microvascular blood flow (MBF) and substrate delivery to myocytes. Insulin's microvascular action is impaired with insulin resistance and type 2 diabetes. Resistance training (RT) improves glycemic control and insulin sensitivity, but whether this improvement is linked to augmented skeletal muscle microvascular responses in type 2 diabetes is unknown. RESEARCH DESIGN AND METHODS Seventeen (11 male and 6 female; 52 ± 2 years old) sedentary patients with type 2 diabetes underwent 6 weeks of whole-body RT. Before and after RT, participants who fasted overnight had clinical chemistries measured (lipids, glucose, HbA1c, insulin, and advanced glycation end products) and underwent an oral glucose challenge (OGC) (50 g × 2 h). Forearm muscle MBF was assessed by contrast-enhanced ultrasound, skin MBF by laser Doppler flowmetry, and brachial artery flow by Doppler ultrasound at baseline and 60 min post-OGC. A whole-body DEXA scan before and after RT assessed body composition. RESULTS After RT, muscle MBF response to the OGC increased, while skin microvascular responses were unchanged. These microvascular adaptations were accompanied by improved glycemic control (fasting blood glucose, HbA1c, and glucose area under the curve [AUC] during OGC) and increased lean body mass and reductions in fasting plasma triglyceride, total cholesterol, advanced glycation end products, and total body fat. Changes in muscle MBF response after RT significantly correlated with reductions in fasting blood glucose, HbA1c, and OGC AUC with adjustment for age, sex, % body fat, and % lean mass. CONCLUSIONS RT improves OGC-stimulated muscle MBF and glycemic control concomitantly, suggesting that MBF plays a role in improved glycemic control from RT.
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Affiliation(s)
- Ryan D Russell
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.,Department of Health and Human Performance, College of Health Services, University of Texas Rio Grande Valley, Brownsville, TX
| | - Donghua Hu
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Timothy Greenaway
- Royal Hobart Hospital, Hobart, Australia.,School of Medicine, University of Tasmania, Hobart, Australia
| | - Sarah J Blackwood
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Renee M Dwyer
- School of Medicine, University of Tasmania, Hobart, Australia
| | - James E Sharman
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Graeme Jones
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Kathryn A Squibb
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Aascha A Brown
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Petr Otahal
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Meg Boman
- Royal Hobart Hospital, Hobart, Australia
| | | | - Dino Premilovac
- School of Medicine, University of Tasmania, Hobart, Australia
| | - Christian K Roberts
- Geriatric Research, Education and Clinical Center (GRECC), VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - Samuel Hitchins
- School of Medicine, University of Tasmania, Hobart, Australia
| | | | - Stephen Rattigan
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Michelle A Keske
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia .,Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
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11
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Ekman C, Elgzyri T, Ström K, Almgren P, Parikh H, Dekker Nitert M, Rönn T, Manderson Koivula F, Ling C, Tornberg ÅB, Wollmer P, Eriksson KF, Groop L, Hansson O. Less pronounced response to exercise in healthy relatives to type 2 diabetic subjects compared with controls. J Appl Physiol (1985) 2015; 119:953-60. [PMID: 26338460 DOI: 10.1152/japplphysiol.01067.2014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 08/27/2015] [Indexed: 01/03/2023] Open
Abstract
Healthy first-degree relatives with heredity of type 2 diabetes (FH+) are known to have metabolic inflexibility compared with subjects without heredity for diabetes (FH-). In this study, we aimed to test the hypothesis that FH+ individuals have an impaired response to exercise compared with FH-. Sixteen FH+ and 19 FH- insulin-sensitive men similar in age, peak oxygen consumption (V̇o2 peak), and body mass index completed an exercise intervention with heart rate monitored during exercise for 7 mo. Before and after the exercise intervention, the participants underwent a physical examination and tests for glucose tolerance and exercise capacity, and muscle biopsies were taken for expression analysis. The participants attended, on average, 39 training sessions during the intervention and spent 18.8 MJ on exercise. V̇o2 peak/kg increased by 14%, and the participants lost 1.2 kg of weight and 3 cm waist circumference. Given that the FH+ group expended 61% more energy during the intervention, we used regression analysis to analyze the response in the FH+ and FH- groups separately. Exercise volume had a significant effect on V̇o2 peak, weight, and waist circumference in the FH- group, but not in the FH+ group. After exercise, expression of genes involved in metabolism, oxidative phosphorylation, and cellular respiration increased more in the FH- compared with the FH+ group. This suggests that healthy, insulin-sensitive FH+ and FH- participants with similar age, V̇o2 peak, and body mass index may respond differently to an exercise intervention. The FH+ background might limit muscle adaptation to exercise, which may contribute to the increased susceptibility to type 2 diabetes in FH+ individuals.
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Affiliation(s)
- C Ekman
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - T Elgzyri
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - K Ström
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden; Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
| | - P Almgren
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - H Parikh
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden; Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Marloes Dekker Nitert
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - T Rönn
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | | | - C Ling
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - Å B Tornberg
- Department of Health Sciences, Division of Physiotherapy, Lund University, Lund, Sweden; Genetic Molecular Epidemiology Unit, Lund University Diabetes Center, Clinical Research Centre, Malmö, Sweden; and
| | - P Wollmer
- Department of Health Sciences, Division of Physiotherapy, Lund University, Lund, Sweden; Department of Clinical Sciences, Clinical Physiology and Nuclear Medicine Unit, Lund University, Malmö, Sweden
| | - K F Eriksson
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - L Groop
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - O Hansson
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden;
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12
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Russell RD, Nelson AG, Kraemer RR. Short Bouts of High-Intensity Resistance-Style Training Produce Similar Reductions in Fasting Blood Glucose of Diabetic Offspring and Controls. J Strength Cond Res 2014; 28:2760-7. [DOI: 10.1519/jsc.0000000000000624] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Corrigendum. Med Sci Sports Exerc 2014. [DOI: 10.1249/mss.0000000000000304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Keildson S, Fadista J, Ladenvall C, Hedman ÅK, Elgzyri T, Small KS, Grundberg E, Nica AC, Glass D, Richards JB, Barrett A, Nisbet J, Zheng HF, Rönn T, Ström K, Eriksson KF, Prokopenko I, Spector TD, Dermitzakis ET, Deloukas P, McCarthy MI, Rung J, Groop L, Franks PW, Lindgren CM, Hansson O. Expression of phosphofructokinase in skeletal muscle is influenced by genetic variation and associated with insulin sensitivity. Diabetes 2014; 63:1154-65. [PMID: 24306210 PMCID: PMC3931395 DOI: 10.2337/db13-1301] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Using an integrative approach in which genetic variation, gene expression, and clinical phenotypes are assessed in relevant tissues may help functionally characterize the contribution of genetics to disease susceptibility. We sought to identify genetic variation influencing skeletal muscle gene expression (expression quantitative trait loci [eQTLs]) as well as expression associated with measures of insulin sensitivity. We investigated associations of 3,799,401 genetic variants in expression of >7,000 genes from three cohorts (n = 104). We identified 287 genes with cis-acting eQTLs (false discovery rate [FDR] <5%; P < 1.96 × 10(-5)) and 49 expression-insulin sensitivity phenotype associations (i.e., fasting insulin, homeostasis model assessment-insulin resistance, and BMI) (FDR <5%; P = 1.34 × 10(-4)). One of these associations, fasting insulin/phosphofructokinase (PFKM), overlaps with an eQTL. Furthermore, the expression of PFKM, a rate-limiting enzyme in glycolysis, was nominally associated with glucose uptake in skeletal muscle (P = 0.026; n = 42) and overexpressed (Bonferroni-corrected P = 0.03) in skeletal muscle of patients with T2D (n = 102) compared with normoglycemic controls (n = 87). The PFKM eQTL (rs4547172; P = 7.69 × 10(-6)) was nominally associated with glucose uptake, glucose oxidation rate, intramuscular triglyceride content, and metabolic flexibility (P = 0.016-0.048; n = 178). We explored eQTL results using published data from genome-wide association studies (DIAGRAM and MAGIC), and a proxy for the PFKM eQTL (rs11168327; r(2) = 0.75) was nominally associated with T2D (DIAGRAM P = 2.7 × 10(-3)). Taken together, our analysis highlights PFKM as a potential regulator of skeletal muscle insulin sensitivity.
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Affiliation(s)
- Sarah Keildson
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, U.K
| | - Joao Fadista
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Claes Ladenvall
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Åsa K. Hedman
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, U.K
| | - Targ Elgzyri
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Kerrin S. Small
- Department of Twin Research and Genetic Epidemiology, King’s College London, London, U.K
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, U.K
| | - Elin Grundberg
- Department of Twin Research and Genetic Epidemiology, King’s College London, London, U.K
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, U.K
| | - Alexandra C. Nica
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Daniel Glass
- Department of Twin Research and Genetic Epidemiology, King’s College London, London, U.K
| | - J. Brent Richards
- Department of Twin Research and Genetic Epidemiology, King’s College London, London, U.K
- Department of Medicine, Human Genetics, Epidemiology and Biostatistics, McGill University, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Amy Barrett
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Churchill Hospital, Oxford, U.K
| | - James Nisbet
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, U.K
| | - Hou-Feng Zheng
- Department of Medicine, Human Genetics, Epidemiology and Biostatistics, McGill University, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Tina Rönn
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Kristoffer Ström
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
- Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
| | - Karl-Fredrik Eriksson
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Inga Prokopenko
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, U.K
| | | | | | | | - Timothy D. Spector
- Department of Twin Research and Genetic Epidemiology, King’s College London, London, U.K
| | - Emmanouil T. Dermitzakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Panos Deloukas
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, U.K
| | - Mark I. McCarthy
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, U.K
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Churchill Hospital, Oxford, U.K
- Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, U.K
| | - Johan Rung
- European Molecular Biology Laboratory–European Bioinformatics Institute, Cambridge, U.K
| | - Leif Groop
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Paul W. Franks
- Department of Clinical Sciences, Genetic and Molecular Epidemiology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
| | - Cecilia M. Lindgren
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, U.K
- Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, MA
| | - Ola Hansson
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, Skåne University Hospital Malmö, Lund University, Malmö, Sweden
- Corresponding author: Ola Hansson,
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15
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Prior SJ, Ryan AS, Stevenson TG, Goldberg AP. Metabolic inflexibility during submaximal aerobic exercise is associated with glucose intolerance in obese older adults. Obesity (Silver Spring) 2014; 22:451-7. [PMID: 23983100 PMCID: PMC3875833 DOI: 10.1002/oby.20609] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 08/16/2013] [Accepted: 08/16/2013] [Indexed: 12/30/2022]
Abstract
OBJECTIVE People with type 2 diabetes have reduced cardiorespiratory fitness and metabolic impairments that are linked to obesity and often occur prior to the development of type 2 diabetes. We hypothesized that obese, older adults with impaired glucose tolerance (IGT) have lower ability to shift from fat to carbohydrate oxidation when transitioning from rest to submaximal exercise than normal glucose tolerant (NGT) controls. DESIGN AND METHODS Glucose tolerance, body composition, and substrate oxidation (measured by RER:respiratory exchange ratio) during submaximal exercise (50% and 60% VO₂max ) and insulin infusion (3-hour hyperinsulinemic-euglycemic clamp) were assessed in 23 sedentary, overweight-obese, older men and women. RESULTS Obese subjects with NGT (n = 13) and IGT (n = 10) had similar resting RER, but during submaximal exercise those with IGT had a lower RER and less transition to carbohydrate oxidation than the NGT group (P < 0.05). The IGT group also oxidized less carbohydrate during insulin infusion than NGT (P < 0.05). RER at each exercise intensity independently correlated with 120-minute postprandial glucose (r = -0.54 to -0.58, P < 0.05), but not with body composition, VO₂max , or RER during insulin infusion. CONCLUSIONS Obese, older adults have metabolic inflexibility during exercise that is associated with the degree of glucose intolerance independent of age and body composition.
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Affiliation(s)
- Steven J. Prior
- Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center and Research and Development Service, Baltimore, MD
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Alice S. Ryan
- Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center and Research and Development Service, Baltimore, MD
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Troy G. Stevenson
- Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center and Research and Development Service, Baltimore, MD
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Andrew P. Goldberg
- Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center and Research and Development Service, Baltimore, MD
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD
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16
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Zheng Y, Zhang D, Zhang L, Fu M, Zeng Y, Russell R. Variants of NLRP3 gene are associated with insulin resistance in Chinese Han population with type-2 diabetes. Gene 2013; 530:151-4. [PMID: 23973727 DOI: 10.1016/j.gene.2013.07.082] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/20/2013] [Accepted: 07/23/2013] [Indexed: 12/14/2022]
Abstract
AIMS Nod like receptor pyrin domain containing 3 (NLRP3) is the best characterized member of nod like receptor family. Recent studies suggest that NLRP3 plays a crucial role in the pathogenesis of type-2 diabetes (T2DM), and variants in NLRP3 affect its mRNA stability and expression. Therefore, we hypothesize that the variants in NLRP3 gene may contribute to T2DM susceptibility. The aim of this study is to evaluate the association of NLRP3 SNPs with T2DM in Chinese Han patients. METHODS Two common variants in NLRP3 gene, rs10754558 and rs4612666, were detected using the polymerase chain reaction-restriction fragment length polymorphism procedure in 952 unrelated T2DM patients and 871 healthy controls. All participants were unrelated Chinese Hans. RESULTS The GG genotype and G allele frequencies of rs10754558 were significantly higher in T2DM patients than those in controls (for GG genotype, 19.6% vs. 14.5%, p=0.019; for G allele, 43.9% vs. 39.8%, p=0.013). The GG genotype of rs10754558 was significantly associated with higher LDL-C levels and more prone to insulin resistance, as evaluated by HOMA-IR or QUICK indexes. CONCLUSIONS The variant (rs10754558) in NLRP3 is related to insulin resistance and increased risk of T2DM in Chinese Han population.
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Affiliation(s)
- Yingying Zheng
- Department of Endocrinology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China
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