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Trillaud E, Klemmer P, Malin SK, Erdbrügger U. Tracking Biomarker Responses to Exercise in Hypertension. Curr Hypertens Rep 2023; 25:299-311. [PMID: 37428393 PMCID: PMC10505098 DOI: 10.1007/s11906-023-01252-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2023] [Indexed: 07/11/2023]
Abstract
PURPOSE OF REVIEW Strong evidence is evolving that physical exercise prevents hypertension and reduces blood pressure in patients with pre- and manifest HTN. Yet, identifying and confirming the effectiveness of exercise are challenging. Herein, we discuss conventional and novel biomarkers such as extracellular vesicles (EVs) which may track responses to HTN before and after exercise. RECENT FINDINGS Evolving data shows that improved aerobic fitness and vascular function as well as lowered oxidative stress, inflammation, and gluco-lipid toxicity are leading biomarkers considered to promote HTN, but they explain only about a half of the pathophysiology. Novel biomarkers such as EVs or microRNA are providing additional input to understand the complex mechanisms involved in exercise therapy for HTN patients. Conventional and novel biomarkers are needed to fully understand the integrative "cross-talk" between tissues to regulate vasculature physiology for blood pressure control. These biomarker studies will lead to more specific disease markers and the development of even more personalized therapy in this field. However, more systematic approaches and randomized controlled trials in larger cohorts are needed to assess exercise effectiveness across the day and with different exercise types.
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Affiliation(s)
- Eric Trillaud
- Department of Medicine, Division of Nephrology, University of Virginia Health System, Charlottesville, VA, USA.
- Footwear R&D, On AG, Zurich, 8005, Switzerland.
| | - Philip Klemmer
- Department of Medicine, Division of Nephrology, University of North Carolina, Chapel Hill, NC, USA
| | - Steven K Malin
- Department of Kinesiology & Health, Rutgers University, New Brunswick, NJ, USA
- Division of Endocrinology, Metabolism & Nutrition, Department of Medicine, New Brunswick, NJ, USA
- The New Jersey Institute for Food, Nutrition and Health, Rutgers University, New Brunswick, NJ, USA
- Institute of Translational Medicine and Science, Rutgers University, New Brunswick, NJ, USA
| | - Uta Erdbrügger
- Department of Medicine, Division of Nephrology, University of Virginia Health System, Charlottesville, VA, USA
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2
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Barchetta I, Cimini FA, Dule S, Cavallo MG. Dipeptidyl Peptidase 4 (DPP4) as A Novel Adipokine: Role in Metabolism and Fat Homeostasis. Biomedicines 2022; 10:biomedicines10092306. [PMID: 36140405 PMCID: PMC9496088 DOI: 10.3390/biomedicines10092306] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Dipeptidyl peptidase 4 (DPP4) is a molecule implicated in the regulation of metabolic homeostasis and inflammatory processes, and it exerts its main action through its enzymatic activity. DPP4 represents the enzyme most involved in the catabolism of incretin hormones; thus, its activity impacts appetite, energy balance, and the fine regulation of glucose homeostasis. Indeed, DPP4 inhibitors represent a class of antidiabetic agents widely used for the treatment of Type 2 diabetes mellitus (T2DM). DPP4 also acts as an adipokine and is mainly secreted by the adipose tissue, mostly from mature adipocytes of the visceral compartment, where it exerts autocrine and paracrine activities. DPP4 can disrupt insulin signaling within the adipocyte and in other target cells and tissues, where it also favors the development of a proinflammatory environment. This is likely at the basis of the presence of elevated circulating DPP4 levels in several metabolic diseases. In this review, we summarize the most recent evidence of the role of the DPP4 as an adipokine-regulating glucose/insulin metabolism and fat homeostasis, with a particular focus on clinical outcomes associated with its increased secretion in the presence of adipose tissue accumulation and dysfunction.
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3
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Engin B, Willis SA, Malaikah S, Sargeant JA, Yates T, Gray LJ, Aithal GP, Stensel DJ, King JA. The effect of exercise training on adipose tissue insulin sensitivity: A systematic review and meta-analysis. Obes Rev 2022; 23:e13445. [PMID: 35319136 DOI: 10.1111/obr.13445] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/07/2022] [Accepted: 03/08/2022] [Indexed: 11/28/2022]
Abstract
This systematic review and meta-analysis determined the impact of exercise training on adipose tissue insulin sensitivity in adults. Its scope extended to studies measuring whole-body and localized subcutaneous adipose tissue insulin sensitivity using validated techniques. Consensus from four studies demonstrates that exercise training improved whole-body adipose tissue insulin sensitivity when measured via stable-isotope lipid tracers (rate of appearance suppression in response to hyperinsulinemia). Meta-analysis of 20 studies (26 intervention arms) employing the adipose tissue insulin resistance index (ADIPO-IR) supported these findings (-10.63 [-14.12 to -7.15] pmol·L-1 × mmol·L-1 ). With ADIPO-IR, this response was greater in studies documenting weight loss and shorter sampling time (≤48 h) post-training. Overall, exercise training did not affect whole-body adipose tissue insulin sensitivity in seven studies (11 intervention arms) measuring the suppression of circulating non-esterified fatty acids in response to insulin infusion (1.51 [-0.12 to 3.14]%); however, subgroup analysis identified an enhanced suppression post-training in trials reporting weight loss. From four microdialysis studies, consensus indicates no effect of exercise training on localized (abdominal/femoral) adipose tissue insulin sensitivity, potentially suggesting that enhanced whole-body responses are related to improvements in central adipose depots. However, heterogeneity within microdialysis protocols dictates that findings must be viewed with caution.
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Affiliation(s)
- Buket Engin
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.,NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK
| | - Scott A Willis
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.,NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK
| | - Sundus Malaikah
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.,NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK.,Clinical Nutrition Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jack A Sargeant
- NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK.,Diabetes Research Centre, University of Leicester, Leicester, UK
| | - Thomas Yates
- NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK.,Diabetes Research Centre, University of Leicester, Leicester, UK
| | - Laura J Gray
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Guruprasad P Aithal
- Nottingham Digestive Diseases Centre, School of Medicine, University of Nottingham, Nottingham, UK.,NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham, UK
| | - David J Stensel
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.,NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK
| | - James A King
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.,NIHR Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, UK
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Kęska A, Tkaczyk J, Malara M, Iwańska D. Metabolic Risk Factors in Young Men With Healthy Body Fat But Different Level of Physical Activity. Am J Mens Health 2022; 16:15579883211070384. [PMID: 35045742 PMCID: PMC8785314 DOI: 10.1177/15579883211070384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The study was performed to evaluate metabolic risk in young lean individuals characterized by different physical activity. A total of 194 students (93 active with 5–7 h weekly physical activity and 101 inactive) were accepted for the study. The following percentages of body fat were accepted as characteristic for lean men: 14% to 17% in active and 18% to 24% in inactive participants. Circulating glucose, insulin, triacylglycerols (TG), total cholesterol (TC), and high-dendity lipoprotein (HDL)-cholesterol (HDL-C) were assayed. Daily intake of energy and macronutrients was briefly assessed from 24 h food records collected over 4 days preceding blood collection. Insulin and TG differed with respect to physical activity and was lower by 37.5% and 12.5%, respectively, in active versus inactive participants. In active students with upper quartile of body fat percentage, the only significant difference was found between circulating insulin (by 28%, p < .04). In inactive participants with upper quartile of body fat, significant differences were found between levels of insulin and TG (by 25% and by 37.5%, respectively). Diet composition did not differ with respect to the percentage of energy derived from protein, fat, and carbohydrates. An inverse association between insulin level and the percentage of body fat seems to be physiological one because it has been noted in both active and inactive individuals. On the contrary, elevation in circulating TG found exclusively in inactive subjects seems to be secondary to the changes in adiposity and circulating insulin and is followed by tendency to higher levels of TC.
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Affiliation(s)
- Anna Kęska
- Department of Human Biology, Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Joanna Tkaczyk
- Department of Human Biology, Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Marzena Malara
- Department of Human Biology, Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Dagmara Iwańska
- Department of Biomedical Sciences, Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
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Dono I, Dwipajati D, Dirgahayu P, Wibowo YC, Pratama YM. Acute Effects of Breakfast Fruits Meal Sequence and Postprandial Exercise on the Blood Glucose Level and DPP4 Activity among Type 2 Diabetes Mellitus Patients: A Pilot Study. J Obes 2022; 2022:4875993. [PMID: 36204396 PMCID: PMC9532157 DOI: 10.1155/2022/4875993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/07/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Type 2 diabetes mellitus (T2DM) is a major global public health issue. Diet and physical exercise are modifiable factors that influence the glycaemic status of patients with T2DM. We aimed to investigate the acute effects of breakfast fruits meal sequence and postprandial exercise on the blood glucose level and dipeptidyl peptidase 4 (DPP4) activity among type 2 diabetes mellitus patients. METHODS A randomized pilot study recruited patients with T2DM who attended two primary health care centres in Tasikmadu District, Karanganyar Regency, and Kartasura District, Sukoharjo Regency, Central Java, Indonesia, from July to October 2016. Eligible patients (4 men and 32 women) were randomly divided into four treatment groups. Venous blood samples were analyzed for fasting and one-hour postprandial blood glucose (FBG and 1 h PPG) levels and DPP4 activity. Blood glucose levels were measured using a routine hexokinase method, and serum DPP4 activity was determined spectrophotometrically after incubation with the Gly-Pro-p-nitroanilide substrate. RESULTS Fruits last meal decreased FBG level whilst fruits first meal did not significantly decrease 1 h PPG level. Both treatments had no acute effects on DPP4 activity but the addition of postprandial exercise helped lower DPP4 activity. Fruit last and first meals showed significant opposite effects on mean changes of FBG level (p < 0.05). CONCLUSIONS This preliminary report of fruits meal sequence is potentially involved in acute regulation of blood glucose levels and that it might be independent of DPP4 activity in Indonesian patients with T2DM. Moreover, postprandial exercise may be an important intervention for T2DM through the mediation of DPP4 but has no acute effects on the regulation of blood glucose levels. Further studies are required to investigate whether or not different types of fruits and longer treatment intervals can affect blood glucose levels and DPP4 activity differently. This study also gives an insight into the feasibility of conducting food order modification with or without the combination of postprandial exercise in a primary health setting for our next studies.
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Affiliation(s)
- Indarto Dono
- Department of Physiology, Faculty of Medicine, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
- Program of Nutrition Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
- Biomedical Laboratory, Faculty of Medicine, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
| | - Dwipajati Dwipajati
- Program of Nutrition Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
- Department of Nutrition, Politeknik Kesehatan Kemenkes Malang, Jl. Besar Ijen No. 77C, Malang City, Jawa Timur 65119, Indonesia
| | - Paramasari Dirgahayu
- Program of Nutrition Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
- Department of Parasitology, Faculty of Medicine, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
| | - Yohanes Cakrapradipta Wibowo
- Biomedical Laboratory, Faculty of Medicine, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
| | - Yoga Mulia Pratama
- Biomedical Laboratory, Faculty of Medicine, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126, Indonesia
- Department of Internal Medicine, Faculty of Medicine, Jenderal Soedirman University, Jl. Profesor DR. HR Boenyamin No. 708, Banyumas, Jawa Tengah 53122, Indonesia
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6
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Luse MA, Heiston EM, Malin SK, Isakson BE. Cellular and Functional Effects of Insulin Based Therapies and Exercise on Endothelium. Curr Pharm Des 2021; 26:3760-3767. [PMID: 32693765 DOI: 10.2174/1381612826666200721002735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 06/04/2020] [Indexed: 12/24/2022]
Abstract
Endothelial dysfunction is a hallmark of type 2 diabetes that can have severe consequences on vascular function, including hypertension and changes in blood flow, as well as exercise performance. Because endothelium is also the barrier for insulin movement into tissues, it acts as a gatekeeper for transport and glucose uptake. For this reason, endothelial dysfunction is a tempting area for pharmacological and/or exercise intervention with insulin-based therapies. In this review, we describe the current state of drugs that can be used to treat endothelial dysfunction in type 2 diabetes and diabetes-related diseases (e.g., obesity) at the molecular levels, and also discuss their role in exercise.
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Affiliation(s)
- Melissa A Luse
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Virginia, United States
| | - Emily M Heiston
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Virginia, United States
| | - Steven K Malin
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Virginia, United States
| | - Brant E Isakson
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Virginia, United States
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7
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Abstract
Dipeptidyl peptidase IV (DPP-IV) is a unique serine protease that exists in a membrane bound state and in a soluble state in most tissues in the body. DPP-IV has multiple targets including cytokines, neuropeptides, and incretin hormones, and plays an important role in health and disease. Recent work suggests that skeletal muscle releases DPP-IV as a myokine and participates in control of muscle blood flow. However, few of the functions of DPP-IV as a myokine have been investigated to date and there is a poor understanding about what causes DPP-IV to be released from muscle.
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Affiliation(s)
- Heidi A Kluess
- School of Kinesiology, Auburn University, Auburn, AL, United States
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8
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Hrubeniuk TJ, Bouchard DR, Goulet EDB, Gurd B, Sénéchal M. The ability of exercise to meaningfully improve glucose tolerance in people living with prediabetes: A meta‐analysis. Scand J Med Sci Sports 2019; 30:209-216. [DOI: 10.1111/sms.13567] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/23/2019] [Accepted: 09/17/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Travis J. Hrubeniuk
- Cardiometabolic Exercise and Lifestyle Laboratory University of New Brunswick Fredericton NB Canada
- Interdisciplinary Studies School of Graduate Studies University of New Brunswick Fredericton NB Canada
| | - Danielle R. Bouchard
- Cardiometabolic Exercise and Lifestyle Laboratory University of New Brunswick Fredericton NB Canada
- Faculty of Kinesiology University of New Brunswick Fredericton NB Canada
| | - Eric D. B. Goulet
- Faculty of Physical Activity Sciences University of Sherbrooke Sherbrooke QC Canada
- Research Centre on Aging University of Sherbrooke Sherbrooke QC Canada
| | - Brendon Gurd
- School of Kinesiology and Health Studies Queen's University Kingston ON Canada
| | - Martin Sénéchal
- Cardiometabolic Exercise and Lifestyle Laboratory University of New Brunswick Fredericton NB Canada
- Faculty of Kinesiology University of New Brunswick Fredericton NB Canada
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9
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Fujiwara Y, Eguchi S, Murayama H, Takahashi Y, Toda M, Imai K, Tsuda K. Relationship between diet/exercise and pharmacotherapy to enhance the GLP-1 levels in type 2 diabetes. Endocrinol Diabetes Metab 2019; 2:e00068. [PMID: 31294084 PMCID: PMC6613229 DOI: 10.1002/edm2.68] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/15/2019] [Accepted: 03/28/2019] [Indexed: 12/15/2022] Open
Abstract
The rapid rise in the prevalence of type 2 diabetes mellitus (T2DM) poses a huge healthcare burden across the world. Although there are several antihyperglycaemic agents (AHAs) available including addition of new drug classes to the treatment algorithm, more than 50% of patients with T2DM do not achieve glycaemic targets, suggesting an urgent need for treatment strategies focusing on prevention and progression of T2DM and its long-term complications. Lifestyle changes including implementation of healthy diet and physical activity are cornerstones for the management of T2DM. The positive effects of diet and exercise on incretin hormones such as glucagon-like peptide-1 (GLP-1) have been reported. We hypothesize an IDEP concept (Interaction between Diet/Exercise and Pharmacotherapy) aimed at modifying the diet and lifestyle, along with pharmacotherapy to enhance the GLP-1 levels, would result in good glycaemic control in patients with T2DM. Consuming protein-rich food, avoiding saturated fatty acids and making small changes in eating habits such as eating slowly with longer mastication time can have a positive impact on the GLP-1 secretion and insulin levels. Further the type of physical activity (aerobic/resistance training), intensity of exercise, duration, time and frequency of exercise have shown to improve GLP-1 levels. Apart from AHAs, a few antihypertensive drugs and lipid-lowering drugs have also shown to increase endogenous GLP-1 levels, however, due to quick degradation of GLP-1 by dipeptidyl peptidase-4 (DPP-4) enzyme, treatment with DPP-4 inhibitors would protect GLP-1 from degradation and prolong its activity. Thus, IDEP concept can be a promising treatment strategy, which positively influences the GLP-1 levels and provide additive benefits in terms of improving metabolic parameters in patients with T2DM and slowing the progression of T2DM and its associated complications.
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Affiliation(s)
- Yuki Fujiwara
- Medical Division, Cardio‐Metabolic Medical Franchise DepartmentNovartis Pharma K.KTokyoJapan
| | - Shunsuke Eguchi
- Medical Division, Cardio‐Metabolic Medical Franchise DepartmentNovartis Pharma K.KTokyoJapan
| | - Hiroki Murayama
- Medical Division, Cardio‐Metabolic Medical Franchise DepartmentNovartis Pharma K.KTokyoJapan
| | - Yuri Takahashi
- Medical Division, Cardio‐Metabolic Medical Franchise DepartmentNovartis Pharma K.KTokyoJapan
| | - Mitsutoshi Toda
- Medical Division, Cardio‐Metabolic Medical Franchise DepartmentNovartis Pharma K.KTokyoJapan
| | - Kota Imai
- Medical Division, Cardio‐Metabolic Medical Franchise DepartmentNovartis Pharma K.KTokyoJapan
| | - Kinsuke Tsuda
- Faculty of Human SciencesTezukayama Gakuin UniversityOsakaJapan
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10
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Turner G, Quigg S, Davoren P, Basile R, McAuley SA, Coombes JS. Resources to Guide Exercise Specialists Managing Adults with Diabetes. SPORTS MEDICINE - OPEN 2019; 5:20. [PMID: 31161377 PMCID: PMC6546780 DOI: 10.1186/s40798-019-0192-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 05/10/2019] [Indexed: 12/16/2022]
Abstract
Exercise is an important element to optimize health and well-being, though navigating exercise safely can be challenging for exercise specialists working with people with diabetes. Measuring glucose levels before an exercise session assists in the determination of whether exercise is safe for a person with diabetes. A number of organizations have recently developed guidelines to provide exercise and diabetes recommendations based on glucose levels and other relevant factors. However, there are limited easy-to-use resources to assist exercise specialists to determine whether exercise should be started and continued by people with diabetes. The type of diabetes, pre-exercise glucose level, medications and their timing, recent food intake and general sense of wellness all warrant consideration when determining the approach to each exercise session. An expert group was convened to review the published literature and develop resources to guide exercise specialists in assessing the safety of an adult with diabetes starting exercise, and indications to cease exercise, based upon glucose levels and other factors. Contraindications to people with diabetes starting or continuing exercise are (1) glucose < 4.0 mmol/L; (2) glucose > 15.0 mmol/L with symptoms of weakness/tiredness, or with ketosis; (3) hypoglycaemic event within the previous 24 h that required assistance from another person to treat and (4) feeling unwell. To optimize diabetes and exercise safety, recommendations (stratified by pre-exercise glucose level) are provided regarding carbohydrate ingestion, glucose monitoring and medication adjustment.
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Affiliation(s)
- Grant Turner
- Chronic Disease and Post Acute Programs, Diagnostic, Emergency and Medical Services, Gold Coast Health, Queensland Health, Robina, Australia
| | - Scott Quigg
- Metro North Hospital and Health Service, Community, Indigenous and Subacute Service, Diabetes Service, North Lakes Health Precinct, Queensland Health, North Lakes, Australia
| | - Peter Davoren
- Division Medicine, Gold Coast Health, Queensland Health, Robina, Australia
| | - Renata Basile
- Diabetes Centre, Gold Coast University Hospital, Southport, Australia
| | - Sybil A McAuley
- Department of Medicine, University of Melbourne, Melbourne, Australia.,Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Australia
| | - Jeff S Coombes
- School of Human Movement and Nutrition Sciences, University of Queensland, Brisbane, 4072, Australia.
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11
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Kalhotra P, Chittepu VCSR, Osorio-Revilla G, Gallardo-Velázquez T. Discovery of Galangin as a Potential DPP-4 Inhibitor That Improves Insulin-Stimulated Skeletal Muscle Glucose Uptake: A Combinational Therapy for Diabetes. Int J Mol Sci 2019; 20:ijms20051228. [PMID: 30862104 PMCID: PMC6429117 DOI: 10.3390/ijms20051228] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/05/2019] [Accepted: 03/08/2019] [Indexed: 12/30/2022] Open
Abstract
Dipeptidyl peptidase-4 (DPP-4) is a well-known therapeutic drug target proven to reduce blood glucose levels in diabetes mellitus, and clinically, DPP-4 inhibitors are used in combination with other anti-diabetic agents. However, side effects and skeletal muscle health are not considered in the treatment for diabetic patients. Recently, natural compounds have been proven to inhibit DPP-4 with fewer side effects. In this work, initially, molecular docking simulations revealed that a natural compound, Galangin, possess a binding energy of −24 KJ/mol and interaction residues SER 630 and TYR 547, that are responsible for potent DPP-4 inhibition. In vitro studies showed that galangin not only inhibits DPP-4 in a concentration-dependent manner but also regulates glucose levels, enabling the proliferation of rat L6 skeletal muscle cells. The combination of galangin with insulin benefits regulation of glucose levels significantly in comparison to galangin alone (p < 0.05). These findings suggest the beneficial effect of the use of galangin, both alone or in combination with insulin, to reduce glucose levels and improve skeletal muscle health in diabetes mellitus.
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Affiliation(s)
- Poonam Kalhotra
- Departamento de Biofísica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, Col. Santo Tomás, C.P. 11340 Ciudad de México, Mexico.
| | - Veera C S R Chittepu
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu S/N, Col. Unidad Profesional Adolfo López Mateos, Zacatenco, CP. 07738 Ciudad de México, México.
| | - Guillermo Osorio-Revilla
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu S/N, Col. Unidad Profesional Adolfo López Mateos, Zacatenco, CP. 07738 Ciudad de México, México.
| | - Tzayhri Gallardo-Velázquez
- Departamento de Biofísica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, Col. Santo Tomás, C.P. 11340 Ciudad de México, Mexico.
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12
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Heiston EM, Eichner NZM, Gilbertson NM, Gaitán JM, Kranz S, Weltman A, Malin SK. Two weeks of exercise training intensity on appetite regulation in obese adults with prediabetes. J Appl Physiol (1985) 2019; 126:746-754. [PMID: 30629474 PMCID: PMC6459386 DOI: 10.1152/japplphysiol.00655.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/20/2018] [Accepted: 01/07/2019] [Indexed: 12/13/2022] Open
Abstract
No short-term exercise data exist testing whether training intensity modifies hormonal and perceived appetite in obese adults with prediabetes. Therefore, we compared the effects of short-term moderate-continuous (CONT) vs. high-intensity interval (INT) training on appetite regulation. Twenty-eight obese adults [age: 61.3 ± 1.5 yr; body mass index (BMI): 33.2 ± 1.1 kg/m2] with prediabetes were randomized to work-matched CONT ( n = 14) or INT ( n = 14) training for 2 wk. Plasma acylated ghrelin (AG), des-acylated ghrelin (dAG), active glucagon-like peptide-1 (GLP-1), and insulin were measured at 0, 30, and 60 min of a 75-g oral glucose tolerance test (OGTT) before and after training. Visual analog scales were administered at 0 and 120 min during the OGTT to examine perceived appetite. Three-day food logs were collected before and after testing to assess ad libitum diet. CONT and INT increased peak oxygen consumption ( P < 0.01) and decreased BMI ( P < 0.01). Although neither intervention altered fasting levels of AG ( P = 0.94), dAG ( P = 0.36), or insulin ( P = 0.67), CONT raised GLP-1 compared with INT ( P = 0.05). Exercise training did not affect postprandial suppression of AG ( P = 0.81) and dAG ( P = 0.67) or stimulation of GLP-1 ( P = 0.67) and insulin ( P = 0.32). Both interventions tended to decrease total energy and protein intake ( P = 0.09 and P = 0.05, respectively), despite no change in fasting hunger ( P = 0.88) and reduced perceived fullness at 120 min during the OGTT ( P = 0.05). We conclude that 2 wk of exercise training intensity does not modulate appetite-regulatory hormones in obese adults with prediabetes. Although perceived fullness to the OGTT was reduced after exercise, CONT and INT decreased energy intake, suggesting that exercise does not elicit compensatory appetite behavior to gain weight. NEW & NOTEWORTHY Adults with prediabetes are at risk for appetite dysregulation. Although exercise promotes weight management, it is unclear whether moderate-continuous or high-intensity interval training is more beneficial for appetite regulation. We show that 2 wk of exercise, independent of intensity, does not alter postprandial appetite hormones or hunger, despite slight reductions in food intake and weight. These data support exercise as an effective method to induce negative energy balance without compensatory weight gain.
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Affiliation(s)
- Emily M Heiston
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
| | - Natalie Z M Eichner
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
| | - Nicole M Gilbertson
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
| | - Julian M Gaitán
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
| | - Sibylle Kranz
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
| | - Arthur Weltman
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
- Division of Endocrinology and Metabolism, Department of Medicine, University of Virginia , Charlottesville, Virginia
| | - Steven K Malin
- Department of Kinesiology, University of Virginia , Charlottesville, Virginia
- Division of Endocrinology and Metabolism, Department of Medicine, University of Virginia , Charlottesville, Virginia
- Robert M. Berne Cardiovascular Research Center, University of Virginia , Charlottesville, Virginia
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13
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Malin SK, Francois ME, Eichner NZM, Gilbertson NM, Heiston EM, Fabris C, Breton M. Impact of short-term exercise training intensity on β-cell function in older obese adults with prediabetes. J Appl Physiol (1985) 2018; 125:1979-1986. [PMID: 30307821 PMCID: PMC6842889 DOI: 10.1152/japplphysiol.00680.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 12/12/2022] Open
Abstract
The effect of work-matched exercise intensity on β-cell function is unknown in people with prediabetes before clinical weight loss. We determined if short-term moderate continuous (CONT) vs. high-intensity interval (INT) exercise increased β-cell function. Thirty-one subjects (age: 61.4 ± 2.5 yr; body mass index: 32.1 ± 1.0 kg/m2) with prediabetes [American Diabetes Association criteria, 75-g oral glucose tolerance test (OGTT)] were randomized to work-matched CONT (70% HRpeak) or INT (3 min 90% HRpeak and 3 min 50% HRpeak) exercise for 60 min/day over 2 wk. A 75-g 2-h OGTT was conducted after an overnight fast, and plasma glucose, insulin, C-peptide, and free fatty acids were determined for calculations of skeletal muscle [oral minimal model (OMM)], hepatic (homeostatic model of insulin resistance), and adipose (Adipose-IR) insulin sensitivity. β-Cell function was defined from glucose-stimulated insulin secretion (GSIS, deconvolution modeling) and the disposition index (DI). Glucagon-like polypeptide-1 [GLP-1(active)] and glucose-dependent insulinotropic polypeptide (GIP) were also measured during the OGTT, along with peak oxygen consumption and body composition. CONT and INT increased skeletal muscle- but not hepatic- or adipose-derived DI ( P < 0.05). Although both treatments tended to reduce fasting GLP-1(active) ( P = 0.08), early phase GLP-1(active) increased post-CONT and INT training ( P < 0.001). Interestingly, CONT exercise increased fasting GIP compared with decreases in INT ( P = 0.02). Early and total-phase skeletal muscle DI correlated with decreased total glucose area under the curve ( r = -0.52, P = 0.002 and r = -0.50, P = 0.003, respectively). Independent of intensity, short-term training increased pancreatic function adjusted to skeletal muscle in relation to improved glucose tolerance in adults with prediabetes. Exercise also uniquely affected GIP and GLP-1(active). Further work is needed to elucidate the dose-dependent mechanism(s) by which exercise impacts glycemia. NEW & NOTEWORTHY Exercise is cornerstone for reducing blood glucose, but whether high-intensity interval training is better than moderate continuous exercise is unclear in people with prediabetes before weight loss. We show that 2 wk of exercise training, independent of intensity, increased pancreatic function in relation to elevated glucagon-like polypeptide-1 secretion. Furthermore, β-cell function, but not insulin sensitivity, was also correlated with improved glucose tolerance. These data suggest that β-cell function is a strong predictor of glycemia regardless of exercise intensity.
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Affiliation(s)
- Steven K Malin
- Department of Kinesiology; University of Virginia , Charlottesville, Virginia
- Division of Endocrinology & Metabolism; University of Virginia , Charlottesville, Virginia
- Robert M. Berne Cardiovascular Research Center, University of Virginia , Charlottesville, Virginia
| | - Monique E Francois
- Department of Kinesiology; University of Virginia , Charlottesville, Virginia
| | - Natalie Z M Eichner
- Department of Kinesiology; University of Virginia , Charlottesville, Virginia
| | - Nicole M Gilbertson
- Department of Kinesiology; University of Virginia , Charlottesville, Virginia
| | - Emily M Heiston
- Department of Kinesiology; University of Virginia , Charlottesville, Virginia
| | - Chiara Fabris
- Center for Diabetes Technology, School of Medicine, University of Virginia , Charlottesville, Virginia
| | - Marc Breton
- Center for Diabetes Technology, School of Medicine, University of Virginia , Charlottesville, Virginia
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14
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Sanz B, Larrinaga G, Fernandez-Atucha A, Gil J, Fraile-Bermudez AB, Kortajarena M, Izagirre A, Martinez-Lage P, Irazusta J. Obesity parameters, physical activity, and physical fitness are correlated with serum dipeptidyl peptidase IV activity in a healthy population. Heliyon 2018; 4:e00627. [PMID: 29872761 PMCID: PMC5986540 DOI: 10.1016/j.heliyon.2018.e00627] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/14/2018] [Accepted: 05/09/2018] [Indexed: 12/12/2022] Open
Abstract
Objective To determine whether obesity, physical fitness, and physical activity parameters are associated with the enzymatic activity of serum dipeptidyl peptidase IV (sDPPIV) in a sample of healthy women and men. Design and methods We have correlated parameters of obesity, physical fitness, and physical activity with sDPPIV activity in 374 healthy subjects (age: 60.7 ± 6.9 years, body mass index: 26.1 ± 4.1 kg/m2). Enzymatic activity was analyzed using spectrofluorimetry, body composition was assessed by impedanciometry, physical fitness data were obtained using the Senior Fitness Test, and physical activity data were collected by accelerometer. Pearson's partial correlation analysis was applied to determine the relationship between DPPIV activity and the rest of parameters and significantly correlated variables were introduced into linear regression models to predict DPPIV. Results Serum DPPIV activity was negatively associated with obesity parameters such as body mass (r = -0.112), body mass index (BMI) (r = -0.147), waist circumference (r = -0.164), waist-to-hip ratio (-0.104), and percentage of fat mass (r = -0.185). Serum DPPIV activity was positively associated with cardiovascular fitness (r = 0.138), total amount of physical activity (r = 0.153), and time spent doing light exercise (r = 0.184). Regression models revealed sex differences in enzyme activity with overall activity higher in women than in men (β = 0.437, p < 0.001). Further, percent fat mass was an independent negative predictor of DPPIV activity (β = -0.184, p = 0.001). Serum DPPIV activity was positively predicted based on the amount of time spent doing light physical activity (β = 0.167, p = 0.001). Conclusion Our results demonstrate that sDPPIV activity is positively associated with healthier parameters regarding fatness, fitness and physical activity.
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Affiliation(s)
- B Sanz
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia, Spain.,BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain
| | - G Larrinaga
- BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain.,Department of Nursing I, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia, Spain
| | - A Fernandez-Atucha
- Department of Nursing I, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia, Spain
| | - J Gil
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia, Spain.,BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - A B Fraile-Bermudez
- Department of Nursing I, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia, Spain
| | - M Kortajarena
- Department of Nursing II, Faculty of Medicine and Nursing, University of the Basque Country, Donostia, Gipuzkoa, Spain
| | - A Izagirre
- Department of Nursing II, Faculty of Medicine and Nursing, University of the Basque Country, Donostia, Gipuzkoa, Spain.,Department of Neurology, CITA-Alzheimer Foundation, San Sebastian, Spain
| | - P Martinez-Lage
- Department of Neurology, CITA-Alzheimer Foundation, San Sebastian, Spain
| | - J Irazusta
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bizkaia, Spain.,BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain
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15
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Eichner NZM, Gilbertson NM, Gaitan JM, Heiston EM, Musante L, LaSalvia S, Weltman A, Erdbrügger U, Malin SK. Low cardiorespiratory fitness is associated with higher extracellular vesicle counts in obese adults. Physiol Rep 2018; 6:e13701. [PMID: 29845758 PMCID: PMC5974724 DOI: 10.14814/phy2.13701] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 04/13/2018] [Indexed: 11/24/2022] Open
Abstract
Low cardiorespiratory fitness (CRF) is associated with cardiovascular disease (CVD) independent of obesity. Extracellular vesicles (EVs) are a novel target of CVD, however, it remains unknown if obese individuals with very poor fitness (VPF) have elevated EVs versus people with poor fitness (PF). Thus, we tested whether VPF was associated with greater EV subtypes in obese adults. Subjects with VPF (n = 13, VO2 peak: 15.4 ± 0.6 mL/kg/min, BMI: 34.1 ± 1.7 kg/m2 ) and PF (n = 13, VO2 peak: 25.9 ± 3.0 mL/kg/min, BMI: 32.1 ± 1.2 kg/m2 ) were compared in this cross-sectional study. After an overnight fast, AnnexinV (AV) +/- platelet (CD31+ /CD41+ ), leukocyte (CD45+ /CD41- ), and endothelial EVs (CD105+ , CD31+ /CD41- ) were analyzed from fresh platelet poor plasma via imaging flow cytometry. Body fat, blood pressure (BP), and glucose tolerance (OGTT) were also tested. Body weight, BP, and circulating glucose were similar between groups, although VPF subjects were older than PF (64.0 ± 2.1 vs. 49.8 ± 4.2 year; P < 0.05). People with VPF, compared with PF, had higher total AV- EVs (P = 0.04), AV- platelet EVs (CD31+ /CD41+ ; P = 0.006), and AV- endothelial EVs (CD31+ /CD41- ; P = 0.005) independent of age and body fat. Higher AV- platelet and endothelial EVs were associated with lower VO2 peak (r = -0.56, P = 0.006 and r = -0.55, P = 0.005, respectively). Endothelial-derived AV- /CD31+ /CD41- EVs were also related to pulse pressure (r = 0.45, P = 0.03), whereas AV- /CD105 was linked to postprandial glucose (r = 0.41, P = 0.04). VPF is associated with higher AnnexinV- total, endothelial, and platelet EVs in obese adults, suggesting that subtle differences in fitness may reduce type 2 diabetes and CVD risk through an EV-related mechanism.
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Affiliation(s)
| | | | - Julian M. Gaitan
- Department of KinesiologyUniversity of VirginiaCharlottesvilleVirginia
| | - Emily M. Heiston
- Department of KinesiologyUniversity of VirginiaCharlottesvilleVirginia
| | - Luca Musante
- Division of NephrologyUniversity of VirginiaCharlottesvilleVirginia
| | - Sabrina LaSalvia
- Division of NephrologyUniversity of VirginiaCharlottesvilleVirginia
| | - Arthur Weltman
- Department of KinesiologyUniversity of VirginiaCharlottesvilleVirginia
- Division of Endocrinology and MetabolismUniversity of VirginiaCharlottesvilleVirginia
| | - Uta Erdbrügger
- Division of NephrologyUniversity of VirginiaCharlottesvilleVirginia
| | - Steven K. Malin
- Department of KinesiologyUniversity of VirginiaCharlottesvilleVirginia
- Division of Endocrinology and MetabolismUniversity of VirginiaCharlottesvilleVirginia
- Robert M. Berne Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVirginia
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16
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Lee ES, Lee DS, Pandeya PR, Kim YC, Kang DG, Lee HS, Oh BC, Lee DH. Sodium butyrate has context-dependent actions on dipeptidyl peptidase-4 and other metabolic parameters. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2017; 21:519-529. [PMID: 28883756 PMCID: PMC5587602 DOI: 10.4196/kjpp.2017.21.5.519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/29/2017] [Accepted: 06/20/2017] [Indexed: 12/28/2022]
Abstract
Sodium butyrate (SB) has various metabolic actions. However, its effect on dipeptidyl peptidase 4 (DPP-4) needs to be studied further. We aimed to evaluate the metabolic actions of SB, considering its physiologically relevant concentration. We evaluated the effect of SB on regulation of DPP-4 and its other metabolic actions, both in vitro (HepG2 cells and mouse mesangial cells) and in vivo (high fat diet [HFD]-induced obese mice). Ten-week HFD-induced obese C57BL/6J mice were subjected to SB treatment by adding SB to HFD which was maintained for an additional 16 weeks. In HepG2 cells, SB suppressed DPP-4 activity and expression at sub-molar concentrations, whereas it increased DPP-4 activity at a concentration of 1,000 µM. In HFD-induced obese mice, SB decreased blood glucose, serum levels of insulin and IL-1β, and DPP-4 activity, and suppressed the increase in body weight. On the contrary, various tissues including liver, kidney, and peripheral blood cells showed variable responses of DPP-4 to SB. Especially in the kidney, although DPP-4 activity was decreased by SB in HFD-induced obese mice, it caused an increase in mRNA expression of TNF-α, IL-6, and IL-1β. The pro-inflammatory actions of SB in the kidney of HFD-induced obese mice were recapitulated by cultured mesangial cell experiments, in which SB stimulated the secretion of several cytokines from cells. Our results showed that SB has differential actions according to its treatment dose and the type of cells and tissues. Thus, further studies are required to evaluate its therapeutic relevance in metabolic diseases including diabetes and obesity.
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Affiliation(s)
- Eun-Sol Lee
- College of Pharmacy, Wonkwang University, Iksan 54538, Korea
| | - Dong-Sung Lee
- College of Pharmacy, Chosun University, Gwangju 61452, Korea
| | | | - Youn-Chul Kim
- College of Pharmacy, Wonkwang University, Iksan 54538, Korea
| | - Dae-Gil Kang
- Hanbang Body Fluid Research Center, Wonkwang University, Iksan 54538, Korea.,College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan 54538, Korea
| | - Ho-Sub Lee
- Hanbang Body Fluid Research Center, Wonkwang University, Iksan 54538, Korea.,College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan 54538, Korea
| | - Byung-Chul Oh
- Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Korea.,Department of physiology, College of Medicine, Gachon University, Incheon 21999, Korea
| | - Dae Ho Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon 21565, Korea.,Department of Internal Medicine, Gachon University College of Medicine, Incheon 21999, Korea
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17
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Rahimi N, Samavati Sharif MA, Goharian AR, Pour AH. The Effects of Aerobic Exercises and 25(OH) D Supplementation on GLP1 and DPP4 Level in Type II Diabetic Patients. Int J Prev Med 2017; 8:56. [PMID: 28900535 PMCID: PMC5582496 DOI: 10.4103/ijpvm.ijpvm_161_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 06/10/2017] [Indexed: 01/20/2023] Open
Abstract
Background: The purpose of this study was to investigate the effects of an 8-week aerobic exercise and supplementation of 25(OH)D3 on GLP1 and DDP4 levels in men with type II diabetes. Methods: In this semiexperimental research, among 40–60-year-old men with type II diabetes who were referred to the diabetic center of Isabn-E Maryam hospital in Isfahan; of whom, 48 patients were voluntarily accepted and then were randomly divided into 4 groups: aerobic exercise group, aerobic exercise with 25(OH) D supplement group, 25(OH) D supplement group, and the control group. An aerobic exercise program was conducted for 8 weeks (3 sessions/week, each session 60 to75 min with 60–80% HRmax). The supplement user group received 50,000 units of oral Vitamin D once weekly for 8 weeks. The GLP1, DPP4, and 25(OH) D levels were measured before and after the intervention. At last, the data were statistically analyzed using the ANCOVA and post hoc test of least significant difference. Results: The results of ANCOVA showed a significant difference between the GLP1 and DPP4 levels in aerobic exercise with control group while these changes were not statistically significant between the 25(OH) D supplement group with control group (P < 0.05). Conclusions: Aerobic exercises have resulted an increase in GLP1 level and a decrease in DPP4 level. However, consumption of Vitamin D supplement alone did not cause any changes in GLP1and DPP4 levels but led to an increase in 25-hydroxy Vitamin D level.
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Affiliation(s)
- Naser Rahimi
- Department of Exercise Physiology, Physical Education and Sport Sciences Faculty, Bu Ali Sina University, Hamedan, Iran
| | - Mohammad Ali Samavati Sharif
- Department of Exercise Physiology, Physical Education and Sport Sciences Faculty, Bu Ali Sina University, Hamedan, Iran
| | - Amir Reza Goharian
- Department of Endocrine and Metabolism, Medicine Faculty, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Heidarian Pour
- Department of Exercise Physiology, Physical Education and Sport Sciences Faculty, Bu Ali Sina University, Hamedan, Iran
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18
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Abstract
Lifestyle modification is the cornerstone treatment of type 2 diabetes in the obese patient, and is highly effective at promoting glucose regulation. However, many individuals struggle over time to maintain optimal glycemic control and/or body weight with lifestyle modification. Therefore, additional therapeutic approaches are needed. Pharmacologic interventions have shown promising results for obesity-related diabetes complications. Not surprisingly though lifestyle modification and pharmacology may become ineffective for treating diabetes over time. Bariatric surgery is considered by some, but not all, to be the most effective and durable treatment for combating obesity. In fact many patients with type 2 diabetes have normalized glucose concentrations within days postoperation. Taken together, treatment of obesity in the patient with type 2 diabetes requires a multi-faceted approach.
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Affiliation(s)
- Steven K Malin
- Division of Endocrinology & Metabolism, Department of Kinesiology, Curry School of Education, School of Medicine, University of Virginia, 203 Memorial Gymnasium, Charlottesville, VA 22904, USA
| | - Sangeeta R Kashyap
- Division of Endocrinology, School of Medicine, Department of Endocrinology, Diabetes, and Metabolism, Cleveland Clinic, 9500 Euclid Avenue, NE40, Cleveland, OH 44195, USA.
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19
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Extrapancreatic contribution to glucose regulation by dipeptidyl peptidase 4 inhibition. Cardiovasc Endocrinol 2016. [DOI: 10.1097/xce.0000000000000088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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20
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Huang CN, Wang CJ, Yang YS, Lin CL, Peng CH. Hibiscus sabdariffa polyphenols prevent palmitate-induced renal epithelial mesenchymal transition by alleviating dipeptidyl peptidase-4-mediated insulin resistance. Food Funct 2016; 7:475-82. [DOI: 10.1039/c5fo00464k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Diabetic nephropathy has a significant socioeconomic impact, but its mechanism is unclear and needs to be examined.
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Affiliation(s)
- Chien-Ning Huang
- Department of Internal Medicine
- Chung-Shan Medical University Hospital
- Taichung 402
- Taiwan
- Institute of Medicine
| | - Chau-Jong Wang
- Institute of Biochemistry and Biotechnology
- Chung-Shan Medical University
- Taichung 402
- Taiwan
| | - Yi-Sun Yang
- Department of Internal Medicine
- Chung-Shan Medical University Hospital
- Taichung 402
- Taiwan
| | - Chih-Li Lin
- Institute of Medicine
- Chung-Shan Medical University
- Taichung 402
- Taiwan
| | - Chiung-Huei Peng
- Division of Basic Medical Science
- Hungkuang University
- Taichung City 43302
- Taiwan
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21
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Comparing the Amount of Disorder of Practical-thought Obsession in the Young Male Athlete and Non-athlete People
I J C T A, 8(2) December 2015, pp. 629-633 © International Science Press. DER DIABETOLOGE 2015. [DOI: 10.1007/s11428-015-0036-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Weiss EP, Royer NK, Fisher JS, Holloszy JO, Fontana L. Postprandial plasma incretin hormones in exercise-trained versus untrained subjects. Med Sci Sports Exerc 2014; 46:1098-103. [PMID: 24576859 DOI: 10.1249/mss.0000000000000204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
INTRODUCTION After food ingestion, the incretin hormones, glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), are secreted by the intestines into circulation where they act on the pancreas to promote insulin secretion. We evaluated the hypothesis that low postprandial plasma insulin levels in lean exercise-trained individuals are associated with low concentrations of incretin hormones. METHODS A cross-sectional study was performed to compare postprandial incretin hormone levels in lean endurance exercise-trained individuals (EX; n = 14, ≥40 yr) and age- and sex-matched, nonobese, sedentary control subjects (CON, n = 14). The main outcome measures were GLP-1, GIP, insulin, and glucose incremental areas under the curve (AUC) as measured in plasma samples collected during a 2-h,75-g oral glucose tolerance test (OGTT). RESULTS The EX group had lower body fat percentage (14.6% ± 1.1% vs 23.3% ± 1.7%, P = 0.0002) and higher maximal oxygen uptake (53 ± 2 vs 34 ± 2, P < 0.0001) than CON. Glucose AUC did not differ between groups (P = 0.20). Insulin AUC was lower in EX (2.5 ± 0.5 vs 4.2 ± 1.2 μU·mL·1000 min, P = 0.02). No differences were observed between groups (EX and CON, respectively) for GLP-1 AUC (3.5 ± 0.7 vs 4.1 ± 1.1 pmol·min·100 L, P = 0.61) or GIP AUC (19.2 ± 1.4 vs 18.0 ± 1.4 pg·min·1000 mL; P = 0.56). In CON, insulin AUC was correlated with AUC for GLP-1 (r = 0.53, P = 0.05) and GIP (r = 0.71, P = 0.004), but no such correlations were observed in EX (both P ≥ 0.67). CONCLUSIONS Low postprandial insulin levels in lean exercise-trained individuals are not attributable to lower incretin hormone concentrations. However, exercise may decrease the dependency of postprandial insulin levels on incretin hormones.
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Affiliation(s)
- Edward P Weiss
- 1Department of Nutrition and Dietetics, Saint Louis University, St. Louis, MO; 2Division of Geriatrics and Nutritional Science, Department of Medicine, Washington University School of Medicine, St. Louis, MO; 3Department of Biology, Saint Louis University, St. Louis, MO; 4Department of Medicine, Salerno University Medical School, Salerno, ITALY; and 5CEINGE Biotecnologie Avanzate, Napoli, ITALY
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23
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Peng CH, Yang YS, Chan KC, Wang CJ, Chen ML, Huang CN. Hibiscus sabdariffa polyphenols alleviate insulin resistance and renal epithelial to mesenchymal transition: a novel action mechanism mediated by type 4 dipeptidyl peptidase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:9736-9743. [PMID: 25226384 DOI: 10.1021/jf5024092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The epithelial to mesenchymal transition (EMT) is important in renal fibrosis. Ser307 phosphorylation of insulin receptor substrate-1 (IRS-1 (S307)) is a hallmark of insulin resistance. We report that polyphenol extracts of Hibiscus sabdariffa (HPE) ameliorate diabetic nephropathy and EMT. Recently it has been observed that type 4 dipeptidyl peptidase (DPP-4) inhibitor linagliptin is effective for treating type 2 diabetes and albuminuria. We investigated if DPP-4 and insulin resistance are involved in renal EMT and explored the role of HPE. In high glucose-stimulated tubular cells, HPE, like linagliptin, inhibited DPP-4 activation, thereby regulating vimentin (EMT marker) and IRS-1 (S307). IRS-1 knockdown revealed its essential role in mediating downstream EMT. In type 2 diabetic rats, pIRS-1 (S307) abundantly surrounds the tubular region, with increased vimentin in kidney. Both the expressions were reduced by HPE. In conclusion, HPE exerts effects similar to those of linagliptin, which improves insulin resistance and EMT, and could be an adjuvant to prevent diabetic nephropathy.
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Affiliation(s)
- Chiung-Huei Peng
- Division of Basic Medical Science, Hungkuang University , No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan
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The nonglycemic actions of dipeptidyl peptidase-4 inhibitors. BIOMED RESEARCH INTERNATIONAL 2014; 2014:368703. [PMID: 25140306 PMCID: PMC4129137 DOI: 10.1155/2014/368703] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 07/10/2014] [Indexed: 12/13/2022]
Abstract
A cell surface serine protease, dipeptidyl peptidase 4 (DPP-4), cleaves dipeptide from peptides containing proline or alanine in the N-terminal penultimate position. Two important incretin hormones, glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic peptide (GIP), enhance meal-stimulated insulin secretion from pancreatic β-cells, but are inactivated by DPP-4. Diabetes and hyperglycemia increase the DPP-4 protein level and enzymatic activity in blood and tissues. In addition, multiple other functions of DPP-4 suggest that DPP-4 inhibitor, a new class of antidiabetic agents, may have pleiotropic effects. Studies have shown that DPP-4 itself is involved in the inflammatory signaling pathway, the stimulation of vascular smooth cell proliferation, and the stimulation of oxidative stress in various cells. DPP-4 inhibitor ameliorates these pathophysiologic processes and has been shown to have cardiovascular protective effects in both in vitro and in vivo experiments. However, in recent randomized clinical trials, DPP-4 inhibitor therapy in high risk patients with type 2 diabetes did not show cardiovascular protective effects. Some concerns on the actions of DPP-4 inhibitor include sympathetic activation and neuropeptide Y-mediated vascular responses. Further studies are required to fully characterize the cardiovascular effects of DPP-4 inhibitor.
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