1
|
Zhu L, An J, Luu T, Reyna SM, Tantiwong P, Sriwijitkamol A, Musi N, Stafford JM. Short-term HIIT impacts HDL function differently in lean, obese, and diabetic subjects. Front Physiol 2024; 15:1423989. [PMID: 39234305 PMCID: PMC11371628 DOI: 10.3389/fphys.2024.1423989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 07/29/2024] [Indexed: 09/06/2024] Open
Abstract
Introduction High density lipoproteins (HDL) exert cardiovascular protection in part through their antioxidant capacity and cholesterol efflux function. Effects of exercise training on HDL function are yet to be well established, while impact on triacylglycerol (TG)-lowering has been often reported. We previously showed that a short-term high-intensity interval training (HIIT) program improves insulin sensitivity but does not inhibit inflammatory pathways in immune cells in insulin-resistant subjects. The purpose of this study is to evaluate HDL function along with changes of lipoproteins after the short-term HIIT program in lean, obese nondiabetic, and obese type 2 diabetic (T2DM) subjects. Methods All individuals underwent a supervised 15-day program of alternative HIIT for 40 minutes per day. VO2peak was determined before and after this training program. A pre-training fasting blood sample was collected, and the post-training fasting blood sample collection was performed 36 hours after the last exercise session. Results Blood lipid profile and HDL function were analyzed before and after the HIIT program. Along with improved blood lipid profiles in obese and T2DM subjects, the HIIT program affected circulating apolipoprotein amounts differently. The HIIT program increased HDL-cholesterol levels and improved the cholesterol efflux capacity only in lean subjects. Furthermore, the HIIT program improved the antioxidant capacity of HDL in all subjects. Data from multiple logistic regression analysis showed that changes in HDL antioxidant capacity were inversely associated with changes in atherogenic lipids and changes in HDL-TG content. Discussion We show that a short-term HIIT program improves aspects of HDL function depending on metabolic contexts, which correlates with improvements in blood lipid profile. Our results demonstrate that TG content in HDL particles may play a negative role in the anti-atherogenic function of HDL.
Collapse
Affiliation(s)
- Lin Zhu
- Tennessee Valley Health System, Veterans Affairs, Nashville, TN, United States
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Julia An
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Thao Luu
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sara M Reyna
- Diabetes Division, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
- Division of Human Genetics, School of Medicine, The University of Texas at Rio Grande Valley, Edinburg, TX, United States
| | - Puntip Tantiwong
- Diabetes Division, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Apiradee Sriwijitkamol
- Diabetes Division, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Nicolas Musi
- Diabetes Division, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - John M Stafford
- Tennessee Valley Health System, Veterans Affairs, Nashville, TN, United States
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States
| |
Collapse
|
2
|
Liang H, Sathavarodom N, Colmenares C, Gelfond J, Espinoza SE, Ganapathy V, Musi N. Effect of acute TLR4 inhibition on insulin resistance in humans. J Clin Invest 2022; 132:e162291. [PMID: 36066991 PMCID: PMC9621129 DOI: 10.1172/jci162291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/01/2022] [Indexed: 11/18/2022] Open
Abstract
BackgroundStudies in cell cultures and rodents suggest that TLR4 is involved in the pathogenesis of insulin resistance, but direct data in humans are limited. We tested the hypothesis that pharmacologic blockade of TLR4 with the competitive inhibitor eritoran would improve insulin resistance in humans.MethodsIn protocol I, 10 lean, healthy individuals received the following 72-hour i.v. infusions in a randomized crossover design: saline (30 mL/h) plus vehicle; Intralipid (30 mL/h) plus vehicle; or Intralipid (30 mL/h) plus eritoran (12 mg i.v. every 12 hours). In protocol II, also a randomized crossover design, 9 nondiabetic individuals with obesity received eritoran or vehicle for 72 hours. The effect of eritoran was assessed with euglycemic hyperinsulinemic clamps.ResultsIn protocol I, lipid infusion significantly decreased peripheral insulin sensitivity (M value) by 14% and increased fasting plasma glucose (FPG) concentrations, fasting plasma insulin (FPI) concentrations, and the homeostatic model assessment of insulin resistance (HOMA-IR) index by 7%, 22%, and 26%, respectively. Eritoran did not prevent lipid-induced alterations of these metabolic parameters. Eritoran also failed to improve any baseline metabolic parameters (M, FPG, FPI, HOMA-IR) in individuals with obesity and insulin resistance (protocol II).ConclusionsAcute TLR4 inhibition with eritoran did not protect against lipid-induced insulin resistance. Short-term eritoran administration also failed to improve obesity-associated insulin resistance. These data do not support a role for TLR4 in insulin resistance. Future studies with a different class of TLR4 inhibitors, longer drug exposure, and/or lipid-enhancing interventions richer in saturated fats may be needed to further clarify the role of TLR4 in metabolic dysfunction in humans.Trial registrationClinicalTrials.gov NCT02321111 and NCT02267317.FundingNIH grants R01DK080157, P30AG044271, P30AG013319, and UL1TR002645.
Collapse
Affiliation(s)
- Hanyu Liang
- Barshop Institute for Longevity and Aging Studies and
- Diabetes Division, Department of Medicine, UT Health San Antonio, San Antonio, Texas, USA
- San Antonio Geriatric Research, Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, USA
| | - Nattapol Sathavarodom
- Diabetes Division, Department of Medicine, UT Health San Antonio, San Antonio, Texas, USA
| | - Claudia Colmenares
- Diabetes Division, Department of Medicine, UT Health San Antonio, San Antonio, Texas, USA
| | - Jonathan Gelfond
- Barshop Institute for Longevity and Aging Studies and
- Department of Population Health Science, UT Health San Antonio, San Antonio, Texas, USA
| | - Sara E. Espinoza
- Barshop Institute for Longevity and Aging Studies and
- Diabetes Division, Department of Medicine, UT Health San Antonio, San Antonio, Texas, USA
- San Antonio Geriatric Research, Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, USA
| | - Vinutha Ganapathy
- Diabetes Division, Department of Medicine, UT Health San Antonio, San Antonio, Texas, USA
| | - Nicolas Musi
- Barshop Institute for Longevity and Aging Studies and
- Diabetes Division, Department of Medicine, UT Health San Antonio, San Antonio, Texas, USA
- San Antonio Geriatric Research, Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, USA
| |
Collapse
|
3
|
Jiang Z, Cao J, Su H, Cao H, Sun Z, Jiang H, Fan Y. Exercise serum regulates uric acid transporters in normal rat kidney cells. Sci Rep 2022; 12:18086. [PMID: 36302802 PMCID: PMC9613886 DOI: 10.1038/s41598-022-22570-w] [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] [Received: 07/01/2022] [Accepted: 10/17/2022] [Indexed: 12/30/2022] Open
Abstract
Hyperuricemia (HUA) refers to a physiological condition of high serum uric acid (SUA) level in the body, which may cause an increased risk of several chronic diseases. The kidney's impaired uric acid (UA) metabolism is an important reason for HUA. In this study, we tested the hypothesis that circulating factors produced during exercise regulate the expression of ABCC4, ABCG2, URAT1, and GLUT9 in normal rat kidneys and normal rat kidney cells (NRK-52E) and their relationship with NF-κB and NRF-2. NRK-52E cells were separately cultured by serum from 10 healthy SD rats who did not exercise (CON) and 10 healthy SD rats who did aerobic treadmill exercise for 6 weeks. Cells cultured by serum from rats who did aerobic treadmill exercise for 6 weeks were separated by without NRF-2 inhibitor (EXE) and with NRF-2 inhibitor (EXE + ML). SUA level of rats was tested by using dry chemical assays, xanthine oxidase (XOD) activity in serum and liver were tested by using enzyme colorimetry assays, protein expression in kidney and NRK-52E cells were tested by using Western-blot, and UA levels in the upper or lower chamber were tested by colorimetry assays. Aerobic exercise reduced SUA levels in rats but did not significantly affect on liver xanthine oxidase. It also increased the expression of some UA transporters in the kidney and NRK-52E cells and increased the cells' ability in UA excretion. When the NRF-2 was inhibited, the NF-κB and ABCG2 increased, and the expression of ABCC4, URAT1, and GLUT9 decreased. In conclusion, this study suggested that 6 weeks of aerobic treadmill exercise intervention may help to improve the excretion of UA in renal cells, suggesting that long-term aerobic exercise may be a means to prevent hyperuricemia.
Collapse
Affiliation(s)
- Zhongye Jiang
- grid.411614.70000 0001 2223 5394Sport Biochemistry Department, Sport Science College, Beijing Sport University, Beijing, China
| | - Jianmin Cao
- grid.411614.70000 0001 2223 5394Sport Biochemistry Department, Sport Science College, Beijing Sport University, Beijing, China
| | - Hao Su
- grid.411614.70000 0001 2223 5394Sport Biochemistry Department, Sport Science College, Beijing Sport University, Beijing, China
| | - Hui Cao
- grid.261049.80000 0004 0645 4572North China Electric Power University, Beijing, China
| | - Zeyuan Sun
- grid.411614.70000 0001 2223 5394Sport Biochemistry Department, Sport Science College, Beijing Sport University, Beijing, China
| | - Haoze Jiang
- grid.411614.70000 0001 2223 5394Sport Biochemistry Department, Sport Science College, Beijing Sport University, Beijing, China
| | - Yanjun Fan
- grid.411614.70000 0001 2223 5394Sport Biochemistry Department, Sport Science College, Beijing Sport University, Beijing, China
| |
Collapse
|
4
|
Figueiredo C, Padilha C, Dorneles G, Peres A, Krüger K, Rosa Neto JC, Lira F. Type and Intensity as Key Variable of Exercise in Metainflammation diseases: A Review. Int J Sports Med 2021; 43:743-767. [PMID: 34902867 DOI: 10.1055/a-1720-0369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Monocyte and lymphocyte subpopulations exhibit functions that vary between the anti- and pro-inflammatory spectrum, such as classic CD16- and non-classical CD16+ monocytes, as well as T helper 2 lymphocytes (Th2), the Th1/Th17 lymphocytes ratio, and T regulatory lymphocytes (Treg). Metabolic disease-associated inflammation is accompanied by an imbalance in monocyte and lymphocyte phenotypes and functionality, as well as a stronger proportion of inflammatory subpopulations. These changes appear to be important for the development and progression of diseases like diabetes and cardiovascular disease. On the other hand, the regular practice of physical exercise is an important tool to restore the functionality of monocytes and lymphocytes, and to balance the subtypes ratio. However, key variables regarding exercise prescription, such as the type of exercise, intensity, and volume differentially impact on the acute and chronic immune response in individuals diagnosed with meta inflammation diseases. Here, we discuss the impact of different physical exercise protocols, acutely and chronically, on monocytes and lymphocytes of individuals with metabolic disease-associated inflammation. In this review, we focus on the best effects of different exercise protocols to dose the "exercise pill" in different inflammatory status.
Collapse
Affiliation(s)
- Caique Figueiredo
- Physical Education, Universidade Estadual Paulista Julio de Mesquita Filho - Campus de Presidente Prudente, Presidente Prudente, Brazil
| | - Camila Padilha
- Physical Education, Universidade Estadual de Londrina, Londrina, Brazil
| | - Gilson Dorneles
- Immunology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Alessandra Peres
- Immunology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Karsten Krüger
- Dept. of Sport Medicine, Institute of Sport Science, Giessen, Germany
| | | | - Fábio Lira
- Department of Physical Education, Unesp, Presidente Prudente, Brazil
| |
Collapse
|
5
|
Soltani N, Esmaeil N, Marandi S, Hovsepian V, Momen T, Shahsanai A, Kelishadi R. Assessment of the Effect of Short-Term Combined High-Intensity Interval Training on TLR4, NF-κB and IRF3 Expression in Young Overweight and Obese Girls. Public Health Genomics 2020; 23:26-36. [DOI: 10.1159/000506057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 01/21/2020] [Indexed: 11/19/2022] Open
|
6
|
Soltani N, Marandi SM, Kazemi M, Esmaeil N. The Exercise Training Modulatory Effects on the Obesity-Induced Immunometabolic Dysfunctions. Diabetes Metab Syndr Obes 2020; 13:785-810. [PMID: 32256095 PMCID: PMC7090203 DOI: 10.2147/dmso.s234992] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/18/2020] [Indexed: 12/13/2022] Open
Abstract
Reduced physical activity rate in people's lifestyle is a global concern associated with the prevalence of health disorders such as obesity and metabolic disturbance. Ample evidence has indicated a critical role of the immune system in the aggravation of obesity. The type, duration, and production of adipose tissue-released mediators may change subsequent inactive lifestyle-induced obesity, leading to the chronic systematic inflammation and monocyte/macrophage (MON/MФ) phenotype polarization. Preliminary adipose tissue expansion can be inhibited by changing the lifestyle. In this context, exercise training is widely recommended due to a definite improvement of energy balance and the potential impacts on the inflammatory signaling cascades. How exercise training affects the immune system has not yet been fully elucidated, because its anti-inflammatory, pro-inflammatory, or even immunosuppressive impacts have been indicated in the literature. A thorough understanding of the mechanisms triggered by exercise can suggest a new approach to combat meta-inflammation-induced metabolic diseases. In this review, we summarized the obesity-induced inflammatory pathways, the roles of MON/MФ polarization in adipose tissue and systemic inflammation, and the underlying inflammatory mechanisms triggered by exercise during obesity.
Collapse
Affiliation(s)
- Nakisa Soltani
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran
| | - Sayed Mohammad Marandi
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran
- Sayed Mohammad Marandi Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan, IranTel +983137932358Fax +983136687572 Email
| | - Mohammad Kazemi
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nafiseh Esmaeil
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Correspondence: Nafiseh Esmaeil Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan81744-176, IranTel +98 31 37929097Fax +98 3113 7929031 Email
| |
Collapse
|
7
|
Collao N, Rada I, Francaux M, Deldicque L, Zbinden-Foncea H. Anti-Inflammatory Effect of Exercise Mediated by Toll-Like Receptor Regulation in Innate Immune Cells – A Review. Int Rev Immunol 2019; 39:39-52. [DOI: 10.1080/08830185.2019.1682569] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nicolas Collao
- Exercise Science Laboratory, School of Kinesiology, Faculty of Medicine, Universidad Finis Terrae, Santiago, Chile
| | - Isabel Rada
- Exercise Science Laboratory, School of Kinesiology, Faculty of Medicine, Universidad Finis Terrae, Santiago, Chile
| | - Marc Francaux
- Institute of Neuroscience, UCLouvain, Louvain-la-Neuve, Belgium
| | | | - Hermann Zbinden-Foncea
- Exercise Science Laboratory, School of Kinesiology, Faculty of Medicine, Universidad Finis Terrae, Santiago, Chile
- Centro de Salud Deportivo, Clínica Santa María, Santiago, Chile
| |
Collapse
|
8
|
Chen X, Yan Y, Weng Z, Chen C, Lv M, Lin Q, Du Q, Shen X, Yang L. TAK-875 Mitigates β-Cell Lipotoxicity-Induced Metaflammation Damage through Inhibiting the TLR4-NF- κB Pathway. J Diabetes Res 2019; 2019:5487962. [PMID: 31934590 PMCID: PMC6942802 DOI: 10.1155/2019/5487962] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 09/03/2019] [Indexed: 01/09/2023] Open
Abstract
Metabolic inflammatory damage, characterized by Toll-like receptor 4 (TLR4) signaling activation, is a major mechanism underlying lipotoxicity-induced β-cell damage. The present study is aimed at determining whether G protein-coupled receptor 4 (GPR40) agonist can improve β-cell lipotoxicity-induced damage by inhibiting the TLR4-NF-κB pathway. Lipotoxicity, inflammation-damaged β-cells, obese SD, and TLR4KO rat models were used in the study. In vitro, TAK-875 inhibited the lipotoxicity- and LPS-induced β-cell apoptosis in a concentration-dependent manner, improved the insulin secretion, and inhibited the expression of TLR4 and NF-κB subunit P65. Besides, silencing of TLR4 expression enhanced the protective effects of TAK-875, while TLR4 overexpression attenuated this protective effect. Activation of TLR4 or NF-κB attenuated the antagonism of TAK-875 on PA-induced damage. Moreover, the above process of TAK-875 was partially independent of GPR40 expression. TAK-875 reduced the body weight and inflammatory factors, rebalanced the number and distribution of α or β-cells, inhibited the apoptosis of islet cells, and inhibited the expression of TLR4 and NF-κB subunit P65 in obese rats. Further knockout of the rat TLR4 gene delayed the damage induced by the high-fat diet and synergy with the action of TAK-875. These data suggest that GPR40 agonists antagonized the lipotoxicity β-cell damage by inhibiting the TLR4-NF-κB pathway.
Collapse
Affiliation(s)
- Xide Chen
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Yuanli Yan
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Zhiyan Weng
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Chao Chen
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Miaoru Lv
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Qingwen Lin
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Qiuxia Du
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
| | - Ximei Shen
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
- Diabetes Research Institute of Fujian Province, Fuzhou, 350005 Fujian, China
| | - Liyong Yang
- Endocrinology Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005 Fujian, China
- Diabetes Research Institute of Fujian Province, Fuzhou, 350005 Fujian, China
| |
Collapse
|
9
|
Liang H, Lum H, Alvarez A, Garduno-Garcia JDJ, Daniel BJ, Musi N. A low dose lipid infusion is sufficient to induce insulin resistance and a pro-inflammatory response in human subjects. PLoS One 2018; 13:e0195810. [PMID: 29649324 PMCID: PMC5897027 DOI: 10.1371/journal.pone.0195810] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 02/12/2018] [Indexed: 01/04/2023] Open
Abstract
Objective The root cause behind the low-grade inflammatory state seen in insulin resistant (obesity and type 2 diabetes) states is unclear. Insulin resistant subjects have elevations in plasma free fatty acids (FFA), which are ligands for the pro-inflammatory toll-like receptor (TLR)4 pathway. We tested the hypothesis that an experimental elevation in plasma FFA (within physiological levels) in lean individuals would upregulate TLR4 and activate downstream pathways (e.g., MAPK) in circulating monocytes. Research design and methods Twelve lean, normal glucose-tolerant subjects received a low dose (30 ml/h) 48 h lipid or saline infusion on two different occasions. Monocyte TLR4 protein level, MAPK phosphorylation, and expression of genes in the TLR pathway were determined before and after each infusion. Results The lipid infusion significantly increased monocyte TLR4 protein and phosphorylation of JNK and p38 MAPK. Lipid-mediated increases in TLR4 and p38 phosphorylation directly correlated with reduced peripheral insulin sensitivity (M value). Lipid increased levels of multiple genes linked to inflammation, including several TLRs, CD180, MAP3K7, and CXCL10. Monocytes exposed in vivo to lipid infusion exhibited enhanced in vitro basal and LPS-stimulated IL-1β secretion. Conclusions In lean subjects, a small increase in plasma FFA (as seen in insulin resistant subjects) is sufficient to upregulate TLR4 and stimulate inflammatory pathways (MAPK) in monocytes. Moreover, lipids prime monocytes to endotoxin. We provide proof-of-concept data in humans indicating that the low-grade inflammatory state characteristic of obesity and type 2 diabetes could be caused (at least partially) by pro-inflammatory monocytes activated by excess lipids present in these individuals.
Collapse
Affiliation(s)
- Hanyu Liang
- Barshop Institute of Longevity and Aging Studies, UT Health San Antonio, San Antonio, Texas, United States of America
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
- Geriatric Research Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, United States of America
| | - Helen Lum
- Barshop Institute of Longevity and Aging Studies, UT Health San Antonio, San Antonio, Texas, United States of America
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
- Geriatric Research Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, United States of America
| | - Andrea Alvarez
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
| | | | - Benjamin J. Daniel
- Department of Microbiology, UT Health San Antonio, San Antonio, Texas, United States of America
| | - Nicolas Musi
- Barshop Institute of Longevity and Aging Studies, UT Health San Antonio, San Antonio, Texas, United States of America
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
- Geriatric Research Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, United States of America
- * E-mail:
| |
Collapse
|
10
|
Zou Z, Cai W, Cai M, Xiao M, Wang Z. Influence of the intervention of exercise on obese type II diabetes mellitus: A meta-analysis. Prim Care Diabetes 2016; 10:186-201. [PMID: 26553963 DOI: 10.1016/j.pcd.2015.10.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 09/30/2015] [Accepted: 10/03/2015] [Indexed: 12/22/2022]
Abstract
AIM The study aimed to assess the effect of exercise intervention on the management of obese T2DM patients. METHODS The literature retrieval was conducted in relevant databases from their inception to 2015, with predefined searching strategy and selection criteria. The Cochrane Collaboration's tool was utilized to assess the quality of included studies. Weighted mean difference (WMD) with its corresponding 95% CI (confidence interval) was used as the effect size. RESULTS A subset of 13 eligible studies was selected. Exercise significantly reduced the concentration of high sensitivity C reactive protein (4 months: WMD=-1.03, 95% CI: -1.77 to -0.29, P<0.01), triglyceride (6 months: WMD=-24.75, 95% CI: -27.67 to -21.83, P<0.01), diastolic blood pressure (6 months: WMD=-2.70, 95% CI: -4.12 to -1.28, P=0.0002), systolic blood pressure (WMD=-7.98, 95% CI: -9.87 to -6.08, P<0.01)), HbA1c (4 months: WMD=-0.25, 95% CI: -0.49 to -0.02, P=0.04) and homeostasis model assessment-insulin resistance (3 months: WMD=-0.19, 95% CI: -0.37 to -0.01, P=0.04); and a pronounced increase of HDL-C (12 months: WMD=3.57, 95% CI: 1.92 to 5.21, P<0.01). CONCLUSION Exercise was beneficial to obese T2DM patients.
Collapse
Affiliation(s)
- Zhichun Zou
- Department of Physical Education, Southwest University for Nationalities, Chendu, PR China; Department of Nutrition, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Wei Cai
- Department of Nutrition, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Min Cai
- Department of Physical Education, Shanghai Jiao Tong University, 800 Dongchuan RD. Minhang District, Shanghai 200240, PR China.
| | - Mouyuan Xiao
- Department of Physical Education, Southwest University for Nationalities, Chendu, PR China
| | - Zhijie Wang
- Department of Physical Education, Southwest University for Nationalities, Chendu, PR China
| |
Collapse
|
11
|
Mejías-Peña Y, Rodriguez-Miguelez P, Fernandez-Gonzalo R, Martínez-Flórez S, Almar M, de Paz JA, Cuevas MJ, González-Gallego J. Effects of aerobic training on markers of autophagy in the elderly. AGE (DORDRECHT, NETHERLANDS) 2016; 38:33. [PMID: 26940016 PMCID: PMC5005904 DOI: 10.1007/s11357-016-9897-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/23/2016] [Indexed: 05/16/2023]
Abstract
Autophagy is a molecular process essential for the maintenance of cellular homeostasis, which appears to (i) decline with age and (ii) respond to physical exercise. In addition, recent evidence suggests a crosstalk between autophagy and toll-like receptor (TLR)-associated inflammatory responses. This study assessed the effects of aerobic exercise training on autophagy and TLR signaling in older subjects. Twenty-nine healthy women and men (age, 69.7 ± 1.0 year) were randomized to a training (TG) or a control (CG) group. TG performed an 8-week aerobic training program, while CG followed their daily routines. Peripheral blood mononuclear cells were isolated from blood samples obtained before and after the intervention, and protein levels of protein 1 light chain 3 (LC3), sequestosome 1 (p62/SQSTM1), beclin-1, phosphorylated unc-51-like kinase (ULK-1), ubiquitin-like autophagy-related (Atg)12, Atg16, and lysosome-associated membrane protein (LAMP)-2 were measured. TLR2 and TLR4 signaling pathways were also analyzed. Peak oxygen uptake increased in TG after the intervention. Protein expression of beclin-1, Atg12, Atg16, and the LC3II/I ratio increased following the training program (p < 0.05), while expression of p62/SQSTM1 and phosphorylation of ULK-1 at Ser(757) were lower (p < 0.05). Protein content of TLR2, TLR4, myeloid differentiation primary response gen 88 (MyD88), and TIR domain-containing adaptor-inducing interferon (TRIF) were not significantly modified by exercise. The current data indicate that aerobic exercise training induces alterations in multiple markers of autophagy, which seem to be unrelated to changes in TLR2 and TLR4 signaling pathways. These results expand knowledge on exercise-induced autophagy adaptations in humans and suggest that the exercise type employed may be a key factor explaining the potential relationship between autophagy and TLR pathways.
Collapse
Affiliation(s)
- Yubisay Mejías-Peña
- Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071, León, Spain
| | - Paula Rodriguez-Miguelez
- Divisions of Clinical and Translational Sciences, Georgia Prevention Institute, Department of Pediatrics, Augusta University, Augusta, USA
| | | | - Susana Martínez-Flórez
- Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071, León, Spain
| | - Mar Almar
- Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071, León, Spain
| | - José A de Paz
- Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071, León, Spain
| | - María J Cuevas
- Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071, León, Spain
| | - Javier González-Gallego
- Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071, León, Spain.
| |
Collapse
|
12
|
Oliveira-Batista RD, Silva A, Passos KMRD, Nogueira RMB, Seraphim PM. Six-week anaerobic training improves proteolytic profile of diabetic rats. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2015; 59:400-6. [PMID: 26421672 DOI: 10.1590/2359-3997000000114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 04/20/2015] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate the effect of six-week anaerobic training on the mRNA expression of genes related to proteolysis Ubb (Ubiquitin), E2-14kDa, Trim63 (MuRF1 protein) and Nfkb1 in the skeletal muscle of diabetic rats. MATERIALS AND METHODS Four groups were established: DE (DiabetesExercised), DS (Diabetes Sedentary), CE (Control Exercised) and CS (Control Sedentary). The training consisted of 3 sets of 12 jumps in the liquid mean with load equivalent to 50% of BW for 6 weeks. Euthanasia occurred under ip anesthesia, and blood, adipose tissue and skeletal muscles were collected. Gene expression was quantified by RT-PCR in the gastrocnemius muscle. ANOVA one-way was used for comparison among groups, with post-hoc (Tukey) when necessary, considering p < 0.05. RESULTS We observed reduction in the body weight and adipose tissue in the diabetic groups. The muscle mass was reduced in DS, which could be reversed by training (DE). Although DS and DE have presented similar body weight, the training protocol in DE promoted reduction in the adipose tissue, and increase of muscle mass. Anaerobic training was efficient to reduce glycaemia only in the diabetic animals until 6 hours after the end of training. The Trim63 gene expression was increased in DS; decreased Ubb gene level was observed in trained rats (CE and DE) compared to sedentary (CS and DS), and DE presented the lowest level of E2-14kDa gene expression. CONCLUSION Six-week anaerobic training promoted muscle mass gain, improved glycemic control, and exerted inhibitory effect on the proteolysis of gastrocnemius muscle of diabetic rats.
Collapse
Affiliation(s)
- Rogério de Oliveira-Batista
- Departamento de Fisioterapia, Faculdade de Ciências e Tecnologia, Universidade Estadual Paulista, Presidente Prudente, SP, Brasil
| | - Angelita Silva
- Departamento de Medicina Veterinária, Universidade do Oeste Paulista, Presidente Prudente, SP, Brasil
| | | | | | - Patricia Monteiro Seraphim
- Departamento de Fisioterapia, Faculdade de Ciências e Tecnologia, Universidade Estadual Paulista, Presidente Prudente, SP, Brasil
| |
Collapse
|
13
|
Trewin AJ, Lundell LS, Perry BD, Patil KV, Chibalin AV, Levinger I, McQuade LR, Stepto NK. Effect of N-acetylcysteine infusion on exercise-induced modulation of insulin sensitivity and signaling pathways in human skeletal muscle. Am J Physiol Endocrinol Metab 2015; 309:E388-97. [PMID: 26105008 DOI: 10.1152/ajpendo.00605.2014] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 06/16/2015] [Indexed: 01/10/2023]
Abstract
-Reactive oxygen species (ROS) produced in skeletal muscle may play a role in potentiating the beneficial responses to exercise; however, the effects of exercise-induced ROS on insulin action and protein signaling in humans has not been fully elucidated. Seven healthy, recreationally active participants volunteered for this double-blind, randomized, repeated-measures crossover study. Exercise was undertaken with infusion of saline (CON) or the antioxidant N-acetylcysteine (NAC) to attenuate ROS. Participants performed two 1-h cycling exercise sessions 7-14 days apart, 55 min at 65% V̇o2peak plus 5 min at 85%V̇o2peak, followed 3 h later by a 2-h hyperinsulinemic euglycemic clamp (40 mIU·min(-1)·m(2)) to determine insulin sensitivity. Four muscle biopsies were taken on each trial day, at baseline before NAC infusion (BASE), after exercise (EX), after 3-h recovery (REC), and post-insulin clamp (PI). Exercise, ROS, and insulin action on protein phosphorylation were evaluated with immunoblotting. NAC tended to decrease postexercise markers of the ROS/protein carbonylation ratio by -13.5% (P = 0.08) and increase the GSH/GSSG ratio twofold vs. CON (P < 0.05). Insulin sensitivity was reduced (-5.9%, P < 0.05) by NAC compared with CON without decreased phosphorylation of Akt or AS160. Whereas p-mTOR was not significantly decreased by NAC after EX or REC, phosphorylation of the downstream protein synthesis target kinase p70S6K was blunted by 48% at PI with NAC compared with CON (P < 0.05). We conclude that NAC infusion attenuated muscle ROS and postexercise insulin sensitivity independent of Akt signaling. ROS also played a role in normal p70S6K phosphorylation in response to insulin stimulation in human skeletal muscle.
Collapse
Affiliation(s)
- Adam J Trewin
- College of Sport and Exercise Science and Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Victoria, Australia
| | | | - Ben D Perry
- College of Sport and Exercise Science and Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Victoria, Australia
| | | | | | - Itamar Levinger
- College of Sport and Exercise Science and Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Victoria, Australia
| | - Leon R McQuade
- Australian Proteome Analysis Facility, Macquarie University, Sydney, New South Wales, Australia
| | - Nigel K Stepto
- College of Sport and Exercise Science and Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Victoria, Australia;
| |
Collapse
|
14
|
Zhang N, Liang H, Farese RV, Li J, Musi N, Hussey SE. Pharmacological TLR4 Inhibition Protects against Acute and Chronic Fat-Induced Insulin Resistance in Rats. PLoS One 2015. [PMID: 26196892 PMCID: PMC4510579 DOI: 10.1371/journal.pone.0132575] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Aims To evaluate whether pharmacological TLR4 inhibition protects against acute and chronic fat-induced insulin resistance in rats. Materials and Methods For the acute experiment, rats received a TLR4 inhibitor [TAK-242 or E5564 (2x5 mg/kg i.v. bolus)] or vehicle, and an 8-h Intralipid (20%, 8.5 mg/kg/min) or saline infusion, followed by a two-step hyperinsulinemic-euglycemic clamp. For the chronic experiment, rats were subcutaneously implanted with a slow-release pellet of TAK-242 (1.5 mg/d) or placebo. Rats then received a high fat diet (HFD) or a low fat control diet (LFD) for 10 weeks, followed by a two-step insulin clamp. Results Acute experiment; the lipid-induced reduction (18%) in insulin-stimulated glucose disposal (Rd) was attenuated by TAK-242 and E5564 (the effect of E5564 was more robust), suggesting improved peripheral insulin action. Insulin was able to suppress hepatic glucose production (HGP) in saline- but not lipid-treated rats. TAK-242, but not E5564, partially restored this effect, suggesting improved HGP. Chronic experiment; insulin-stimulated Rd was reduced ~30% by the HFD, but completely restored by TAK-242. Insulin could not suppress HGP in rats fed a HFD and TAK-242 had no effect on HGP. Conclusions Pharmacological TLR4 inhibition provides partial protection against acute and chronic fat-induced insulin resistance in vivo.
Collapse
Affiliation(s)
- Ning Zhang
- Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
| | - Hanyu Liang
- Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
- Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
- The Geriatric Research Education and Clinical Center, South Texas Veterans Health Care System, San Antonio, TX, 78229, United States of America
| | - Robert V. Farese
- Department of Internal Medicine, The University of South Florida, Tampa, FL 33620, United States of America
- James A Hayley Veterans Medical Center, Tampa, FL, 33612, United States of America
| | - Ji Li
- Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
- Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
| | - Nicolas Musi
- Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
- Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, United States of America
- The Geriatric Research Education and Clinical Center, South Texas Veterans Health Care System, San Antonio, TX, 78229, United States of America
- * E-mail: (SHE); (NM)
| | - Sophie E. Hussey
- Department of Internal Medicine, The University of South Florida, Tampa, FL 33620, United States of America
- James A Hayley Veterans Medical Center, Tampa, FL, 33612, United States of America
- * E-mail: (SHE); (NM)
| |
Collapse
|
15
|
Robinson E, Durrer C, Simtchouk S, Jung ME, Bourne JE, Voth E, Little JP. Short-term high-intensity interval and moderate-intensity continuous training reduce leukocyte TLR4 in inactive adults at elevated risk of type 2 diabetes. J Appl Physiol (1985) 2015; 119:508-16. [PMID: 26139217 DOI: 10.1152/japplphysiol.00334.2015] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 06/30/2015] [Indexed: 12/25/2022] Open
Abstract
Exercise can have anti-inflammatory effects in obesity, but the optimal type and intensity of exercise are not clear. This study compared short-term high-intensity interval training (HIIT) with moderate-intensity continuous training (MICT) in terms of improvement in cardiorespiratory fitness, markers of inflammation, and glucose control in previously inactive adults at elevated risk of developing type 2 diabetes. Thirty-nine inactive, overweight/obese adults (32 women) were randomly assigned to 10 sessions over 2 wk of progressive HIIT (n = 20, four to ten 1-min sessions at ∼90% peak heart rate, 1-min rest periods) or MICT (n = 19, 20-50 min at ∼65% peak heart rate). Before and 3 days after training, participants performed a peak O2 uptake test, and fasting blood samples were obtained. Both HIIT (1.8 ± 0.4 vs. 1.9 ± 0.4 l/min, pre vs. post) and MICT (1.8 ± 0.5 vs. 1.9 ± 0.5 l/min, pre vs. post) improved peak O2 uptake (P < 0.001) and lowered plasma fructosamine (P < 0.05). Toll-like receptor (TLR) 4 (TLR4) expression was reduced on lymphocytes and monocytes after both HIIT and MICT (P < 0.05) and on neutrophils after MICT (P < 0.01). TLR2 on lymphocytes was reduced after HIIT and MICT (P < 0.05). Plasma inflammatory cytokines were unchanged after training in both groups, but MICT led to a reduction in fasting plasma glucose (P < 0.05, 5.9 ± 1.0 vs. 5.6 ± 1.0 mmol/l, pre vs. post). Ten days of either HIIT or MICT can improve cardiorespiratory fitness and glucose control and lead to reductions in TLR2 and TLR4 expression. MICT, which involved a longer duration of exercise, may be superior for reducing fasting glucose.
Collapse
Affiliation(s)
- Emily Robinson
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Cody Durrer
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Svetlana Simtchouk
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Mary E Jung
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Jessica E Bourne
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Elizabeth Voth
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| |
Collapse
|
16
|
Gimenes C, Gimenes R, Rosa CM, Xavier NP, Campos DHS, Fernandes AAH, Cezar MDM, Guirado GN, Cicogna AC, Takamoto AHR, Okoshi MP, Okoshi K. Low Intensity Physical Exercise Attenuates Cardiac Remodeling and Myocardial Oxidative Stress and Dysfunction in Diabetic Rats. J Diabetes Res 2015; 2015:457848. [PMID: 26509175 PMCID: PMC4609864 DOI: 10.1155/2015/457848] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 01/04/2015] [Indexed: 12/31/2022] Open
Abstract
UNLABELLED We evaluated the effects of a low intensity aerobic exercise protocol on cardiac remodeling and myocardial function in diabetic rats. Wistar rats were assigned into four groups: sedentary control (C-Sed), exercised control (C-Ex), sedentary diabetes (DM-Sed), and exercised diabetes (DM-Ex). Diabetes was induced by intraperitoneal injection of streptozotocin. Rats exercised for 9 weeks in treadmill at 11 m/min, 18 min/day. Myocardial function was evaluated in left ventricular (LV) papillary muscles and oxidative stress in LV tissue. Statistical analysis was given by ANOVA or Kruskal-Wallis. Echocardiogram showed diabetic groups with higher LV diastolic diameter-to-body weight ratio and lower posterior wall shortening velocity than controls. Left atrium diameter was lower in DM-Ex than DM-Sed (C-Sed: 5.73 ± 0.49; C-Ex: 5.67 ± 0.53; DM-Sed: 6.41 ± 0.54; DM-Ex: 5.81 ± 0.50 mm; P < 0.05 DM-Sed vs C-Sed and DM-Ex). Papillary muscle function was depressed in DM-Sed compared to C-Sed. Exercise attenuated this change in DM-Ex. Lipid hydroperoxide concentration was higher in DM-Sed than C-Sed and DM-Ex. Catalase and superoxide dismutase activities were lower in diabetics than controls and higher in DM-Ex than DM-Sed. Glutathione peroxidase activity was lower in DM-Sed than C-Sed and DM-Ex. CONCLUSION Low intensity exercise attenuates left atrium dilation and myocardial oxidative stress and dysfunction in type 1 diabetic rats.
Collapse
Affiliation(s)
- C. Gimenes
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
- Sagrado Coração University, Bauru, SP, Brazil
| | - R. Gimenes
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - C. M. Rosa
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - N. P. Xavier
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - D. H. S. Campos
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - A. A. H. Fernandes
- Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University (UNESP), Brazil
| | - M. D. M. Cezar
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - G. N. Guirado
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - A. C. Cicogna
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - A. H. R. Takamoto
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - M. P. Okoshi
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
| | - K. Okoshi
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), S/N, Rubião Junior District, 18618 970 Botucatu, SP, Brazil
- *K. Okoshi:
| |
Collapse
|
17
|
Dahlqvist JR, Ørngreen MC, Witting N, Vissing J. Endocrine function over time in patients with myotonic dystrophy type 1. Eur J Neurol 2014; 22:116-22. [PMID: 25155546 DOI: 10.1111/ene.12542] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 06/23/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Patients with myotonic dystrophy type 1 (DM1) have an increased incidence of endocrine dysfunction. In this study, the temporal evolution of endocrine dysfunction in patients with DM1 was investigated. METHODS Endocrine function was assessed in 68 patients with DM1, in whom endocrine function had been followed, on average, for 8 years. The endocrine function was assessed by measuring the concentration of hormones and metabolites in blood and by validating libido with questionnaires. RESULTS At baseline, 30 of the 68 patients presented with at least one hormonal dysfunction. When re-evaluated after 8 years, 57 of 68 patients had endocrine dysfunction. Diabetic patients had increased from one to four. At follow-up, hyperparathyroidism occurred in 25% and abnormal thyroid-stimulating hormone in 21%, compared with 14% and 9% at baseline. Sixteen of 33 men had increased luteinizing hormone levels compared with seven at baseline. CONCLUSIONS Our findings show that endocrine abnormalities amongst patients with DM1 increase over time. Based on these findings it is suggested that correctable endocrine abnormalities should be monitored periodically in this patient group.
Collapse
Affiliation(s)
- J R Dahlqvist
- Neuromuscular Research Unit, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | | | | |
Collapse
|
18
|
Lancaster GI, Febbraio MA. The immunomodulating role of exercise in metabolic disease. Trends Immunol 2014; 35:262-9. [DOI: 10.1016/j.it.2014.02.008] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/11/2014] [Accepted: 02/23/2014] [Indexed: 02/06/2023]
|