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Lee J, Baek HS, Jo K, Kim MH, Lee JM, Chang SA, Lim DJ. The Impact of Physical Activity on Thyroid Health: Insights From Representative Data in Korea. J Clin Endocrinol Metab 2024:dgae178. [PMID: 38620035 DOI: 10.1210/clinem/dgae178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Indexed: 04/17/2024]
Abstract
CONTEXT Thyroid hormones are essential for energy metabolism related to thermogenesis and oxygen consumption. OBJECTIVE This study evaluated the potential association of thyroid function including thyroid peroxidase antibodies (TPOAb) with physical activity in nationally representative data. DESIGN/SETTING/PARTICIPANTS This retrospective cohort study used data from the Korean National Health and Nutrition Examination Survey between 2013 and 2015. Physical activity (PA) was assessed using metabolic equivalents based on the validated Korean version of the International Physical Activity Questionnaire Short Form. PA level was categorized into 3 groups of high, moderate, and low. Participants with abnormal thyroid function test, restricted activity, or previous history of thyroid disease were excluded in the study. RESULTS A total of 5372 participants was finally selected. The free T4 level was lowest in the low PA group, while TSH was not significantly different among the groups. TPOAb titers increased in the following order: moderate PA, low PA, and high PA. After adjustment for confounding factors, moderate PA was associated with a high T4 level and a decrease in TSH and TPOAb with significance. However, there were no significant changes in free T4, TSH, or TPOAb titer in the high PA group. In a subanalysis, females with moderate PA showed a significant decrease in TSH and TPOAb. In both males and females, insulin sensitivity was increased with moderate PA. In obese participants, TSH negatively correlated with PA, and free T4 levels decreased in the low PA. The sensitivity to thyroid hormone did not differ in our study. CONCLUSION The present study found an association between thyroid function and moderate PA. Therefore, moderate-intensity PA should be recommended to improve thyroid function.
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Affiliation(s)
- Jeongmin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, Republic of Korea
| | - Han-Sang Baek
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Kwanhoon Jo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, 21431, Republic of Korea
| | - Min-Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, Republic of Korea
| | - Jung Min Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, Republic of Korea
| | - Sang Ah Chang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 03312, Republic of Korea
| | - Dong-Jun Lim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
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Avcu EC, Çınar V, Yasul Y, Akbulut T, Pancar Z, Aydemir IS, Aydin S, Yalcin MH, Aydin S. Effects of an energy drink on myonectin in the liver, kidney and skeletal muscle of exercised rats. Biotech Histochem 2024; 99:69-75. [PMID: 38293763 DOI: 10.1080/10520295.2024.2305113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
Myonectin is a hormone that is produced mainly by skeletal muscle. We investigated the effects of exercise and energy drink (ED) administration on myonectin expression in skeletal muscle, liver and kidney tissue in rats; myonectin is produced by all three tissues. We used 28 male albino rats in four groups: untreated control (C), exercise (E), energy drink (ED) and exercise + energy drink (E + ED). The E and E + ED groups were exercised using a treadmill for 4 weeks. We also administered 3.5 ml/kg/day ED during week 1, 7 ml/kg/day during week 2 and 10 ml/kg/day during weeks 3 and 4 in the E and E + ED groups. We used ELISA to measure the levels of myonectin in skeletal muscle, liver and kidney tissues. We used immunohistochemical staining to investigate the localization and intensity of myonectin in these tissues. The amount of myonectin in skeletal muscle tissue was increased significantly in all experimental groups compared to group C. The amount of myonectin in the ED group was significantly greater than group E. No significant difference was observed in liver tissue; however, the amount of myonectin in the liver of group C was the greatest among all groups. The amount of myonectin in kidney tissue exhibited no significant difference among groups. Consumption of ED during exercise increased the amount of myonectin in kidney and skeletal muscle tissues and decreased it in liver tissue. We suggest that consumption of ED might adapt metabolism to incresed exercise by controling synthesis of myonectin in liver, kidney and skeletal muscle.
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Affiliation(s)
- Emsal Cagla Avcu
- Department of Coaching Education, Sivas Cumhuriyet University, Sivas, Turkey
| | - Vedat Çınar
- Department of Physical Education and Sports Teaching, Fırat University, Elaziğ, Turkey
| | - Yavuz Yasul
- Property Protection and Security Division, Ondokuz Mayıs University, Samsun, Turkey
| | - Taner Akbulut
- Department of Physical Education and Sports Teaching, Fırat University, Elaziğ, Turkey
| | - Zarife Pancar
- Department of Physical Education and Sports, Gaziantep University, Gaziantep, Turkey
| | - I Sa Aydemir
- Department of Physical Education and Sports Teaching, Fırat University, Elaziğ, Turkey
| | - Suna Aydin
- Department of Histology and Embryology, Fırat University, Elazığ, Turkey
- Department of Cardiovascular Surgery, Fethi Sekin City Hospital, Elazığ, Turkey
| | | | - Suleyman Aydin
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, School of Medicine, Firat University, Elazig, Turkey
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Hayashi K, Takeuchi Y, Shimizu S, Tanabe G, Churei H, Kobayashi H, Ueno T. Continuous Oral Administration of Sonicated P. gingivalis Delays Rat Skeletal Muscle Healing Post-Treadmill Training. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13046. [PMID: 36293631 PMCID: PMC9603158 DOI: 10.3390/ijerph192013046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND A delay in muscle repair interferes with the effect of training or exercise; therefore, it is important to identify the factors that delay muscle repair. P. gingivalis, one of the most common periodontal disease pathogens, has the potential to inhibit muscle repair after training, as inferred from a previous study. To assess the expression of satellite cells in this in vivo study, we evaluated the relationship between P. gingivalis and muscle regeneration after training. METHODS A total of 20 male Wistar rats (eight weeks in age) were randomly divided into two groups: one orally administered sonicated P. gingivalis four times per week for six weeks (PG group) and one given no treatment (NT group). After four weeks of training using a treadmill, the gastrocnemius was evaluated using histology of the cross-sectional area (CSA) of myotubes and immunohistochemistry of the expression of skeletal muscle satellite cells. In addition, an endurance test was performed a day before euthanization. RESULTS The CSA and expression of Pax7+/MyoD- and Pax7+/MyoD+ cells were not significantly different between the groups. However, the expression of Pax7-/MyoD+ cells and running time until exhaustion were significantly lower in the PG group. CONCLUSIONS Infection with P. gingivalis likely interferes with muscle repair after training.
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Affiliation(s)
- Kairi Hayashi
- Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
- Division of Sports Dentistry of Sports Science Organization, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Shintaro Shimizu
- Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Gen Tanabe
- Department of Oral Microbiology, Asahi University School of Dentistry, Gifu 501-0296, Japan
| | - Hiroshi Churei
- Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
- Division of Sports Dentistry of Sports Science Organization, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Hiroaki Kobayashi
- Department of Periodontology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Toshiaki Ueno
- Department of Sports Dentistry, Meikai University School of Dentistry, Saitama 350-0283, Japan
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Klasson CL, Sadhir S, Pontzer H. Daily physical activity is negatively associated with thyroid hormone levels, inflammation, and immune system markers among men and women in the NHANES dataset. PLoS One 2022; 17:e0270221. [PMID: 35793317 PMCID: PMC9258892 DOI: 10.1371/journal.pone.0270221] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 06/06/2022] [Indexed: 12/18/2022] Open
Abstract
The acute effects of exercise on metabolic energy expenditure and inflammation are well studied, but the long-term effects of regular daily physical activity on metabolic and endocrine effects are less clear. Further, prior studies investigating the impact of daily physical activity in large cohorts have generally relied on self-reported activity. Here, we used the U.S. National Health and Nutrition Examination Survey (NHANES) to investigate the relationship between daily physical activity and both thyroid and immune activity. Daily physical activity was assessed through accelerometry or accelerometry-validated survey responses. Thyroid activity was assessed from circulating levels of thyroid stimulating hormone (TSH) and thyroxine (T4). Immune function was assessed from circulating cytokines (C-reactive protein [CRP], immunoglobulin E [IgE], fibrinogen) and blood cell counts. In general linear models including body mass index, age, gender, activity and TSH as factors, active adults had a lower levels of T4 and reduced slope of the TSH:T4 relationship. Similarly, greater physical activity was associated with lower CRP and fibrinogen levels (but not IgE) and lower white blood cell, basophil, monocyte, neutrophil, and eosinophil (but not lymphocyte) counts. Daily physical activity was also associated with lower prevalence of clinically elevated CRP, WBC, and lymphocytes in a dose-response manner. These results underscore the long-term impact of daily physical activity on both systemic metabolic activity (thyroid) and on specific physiological tasks (immune). The regulatory effects of physical activity on other bodily systems are clinically relevant and should be incorporated into public health strategies promoting exercise.
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Affiliation(s)
- Christopher L. Klasson
- Trinity College, Duke University, Durham, North Carolina, United States of America
- * E-mail: (CLK); (HP)
| | - Srishti Sadhir
- Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, United States of America
| | - Herman Pontzer
- Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, United States of America
- Duke Global Health Institute, Duke University, Durham, North Carolina, United States of America
- * E-mail: (CLK); (HP)
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Jasaputra DK, Lucretia T, Ray HRD, Kwee L, Gunawan D, Edwinanto L, Viona SI, Goenawan H, Lesmana R, Gunadi JW. Moringa oleifera Leaves Extract Alters Exercise-Induced Cardiac Hypertrophy Adaptation. Pak J Biol Sci 2022; 25:210-217. [PMID: 35234011 DOI: 10.3923/pjbs.2022.210.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
<b>Background and Objective:</b> Cardiomyocyte adaptation to exercise might require ROS as a central regulator. There is a limited study regarding the importance of ROS for inducing exercise-induced adaptation and its correlations with changes in histological scoring of cardiac muscles. The study aimed to explore the importance of physiological ROS induced by exercise and its correlation with Cardiomyocyte' histological appearance that is altered by <i>Moringa oleifera</i> leaves extract in Wistar rats. <b>Materials and Methods:</b> This was an animal experimental study, which use 4 groups of 24 Wistar rats divided into Control (Co), <i>Moringa</i> leaves extract (Mo), Exercise (Ex) and a combination of <i>Moringa </i>leaves extract and Exercise (MoEx). The <i>Moringa</i> leaves extract were given orally, 5 days a week, for 4 consecutive weeks. The exercise was given in moderate intensity, 5 days a week, also for 4 consecutive weeks. <b>Results:</b> This study found significant differences in heart weight and heart weight/body weight ratio in Ex group compared to the control. As for histology scoring, found that MoEx group has 16.7% cardiac hypertrophy and myofiber disarray compared to 83.3% mild hypertrophy and 50% mild disarray in Ex group. <b>Conclusion:</b> In summary, the study showed that the potential central role of exercise-induced physiological ROS for cardiac hypertrophy adaptation is altered by <i>Moringa oleifera </i>leaves extract treatment.
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Fazio E, Lindner A, Cravana C, Wegener J, Medica P, Hart-Mann U, Ferlazzo A. Effects of standardized exercise tests on plasma thyroid hormones' kinetics in Standardbred racehorses. J Equine Vet Sci 2021; 110:103853. [PMID: 34968655 DOI: 10.1016/j.jevs.2021.103853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 11/26/2022]
Abstract
This study examined how a standard exercise test (SET) affected (1) thyroid hormones (THs) of horses and (2) the relationship between the VLa4 of horses and TH responses to the exercise in trained Standardbred racehorses (VLa4 is the velocity run at defined conditions at which a blood lactate concentration of 4 mmol/L is determined). 12 trained Standardbred racehorses (six stallions and six mares) performed SETs until the horses' blood lactate concentration was at or above 4 mmol/L. The horses were divided into three age groups (2, 3 and 4 years old); each group consists of 4 horses respectively (2 male and 2 female), to evaluate the effects of age and sex on hormonal responses to SET. During each SET, blood samples were taken at rest and after each interval and at the end of SET. Blood was analysed for total and free triiodothyronine (T3, fT3) as well as total and free thyroxine (T4, fT4). The statistical model included three fixed factors (SET, sex and age) and their main interactions. ANOVA analysis revealed that T3 and fT3 were significantly influenced by SETs. Plasma T3 and fT3 concentrations were higher in 4-year-old horses compared to the other age groups. All plasma THs concentrations were higher in mares than in stallions. Correlations revealed that a higher VLa4 was negatively related to all THs responses in 2-year-old Standardbred mares only. The SET used to determine VLa4 increased selected THs (T3, fT3); these increases were inversely related to VLa4 and affected by age and sex of the horses. The correlation of VLa4 with thyroid exercise' response might provide some additional information for performance evaluation of Standardbred racehorses, especially for evaluating training adaptation, according to sex and age. Further studies are necessary to provide support on the value of measuring THs in Standardbred racehorses of different sex and age.
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Affiliation(s)
- Esterina Fazio
- Department of Veterinary Sciences, Veterinary Physiology Unit, Polo Universitario Annunziata, Viale Palatucci 13, 98168 Messina, Italy
| | | | - Cristina Cravana
- Department of Veterinary Sciences, Veterinary Physiology Unit, Polo Universitario Annunziata, Viale Palatucci 13, 98168 Messina, Italy
| | | | - Pietro Medica
- Department of Veterinary Sciences, Veterinary Physiology Unit, Polo Universitario Annunziata, Viale Palatucci 13, 98168 Messina, Italy.
| | - Ulrich Hart-Mann
- Institute of Movement and Training Science; Faculty of Sport Science, 04109 Leipzig, Germany
| | - Adriana Ferlazzo
- Department of Veterinary Sciences, Veterinary Physiology Unit, Polo Universitario Annunziata, Viale Palatucci 13, 98168 Messina, Italy
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Different training intensities induced autophagy and histopathology appearances potentially associated with lipid metabolism in wistar rat liver. Heliyon 2020; 6:e03874. [PMID: 32395654 PMCID: PMC7210399 DOI: 10.1016/j.heliyon.2020.e03874] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 02/20/2020] [Accepted: 04/23/2020] [Indexed: 12/16/2022] Open
Abstract
Introduction Aerobic training has a beneficial effect on enhancing liver functions. Autophagy might potentially play a role in preventing excessive lipid accumulation, regulating oxidative stress, and inflammation in the liver. Objective To investigate the potential linking role of autophagy-related gene expressions and protein levels with histopathology changes in Wistar rat livers after treadmill training under different intensities. Methods 20 rats were divided into 4 groups (control, low intensity, moderate intensity, and high intensity). 8 weeks of treadmill training was conducted with a frequency of 5 days per week, for a duration of 30 min per day. Liver histopathology was studied using hematoxylin-eosin, and oil red O staining. RNA and protein from the liver tissues were extracted to examine the autophagy-related gene (LC3, p62) and protein levels (Beclin, ATG5, LC3, p62). The gene expressions of CPT1a, CD36, FATP 2,3,5, GLUT2, and FGF21 were also studied. Results Different intensities of training might potentially modulate autophagy-related gene expressions in rat livers. LC3 and p62 mRNA expressions in moderate and high intensities decreased compared to control. Beclin, ATG5, and LC3 protein level increased compared to control, while p62 protein level decreased compared to control. Whereas for the other genes, we found an increase in CPT1a, but we did not observed any changes in the expression of the other genes. Interestingly, autophagy-related gene expressions might be correlated with the changes of sinusoidal dilatation, cloudy swelling, inflammation, and lipid droplets of the liver tissues. Conclusion Moderate and high intensities of training induce autophagy activity, combined with a shift in metabolic zonation in liver that might be potentially correlated with lipophagy. Our results showed the potential interplay role between autophagy and liver histopathology appearances as a part of the adaptation process to training.
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Gunadi JW, Tarawan VM, Setiawan I, Goenawan H, Ratnawati H, Limyati Y, Adhika OA, Santoso AW, Lesmana R, Supratman U. Adaptation of aerobic training essentially involved autophagy, mitochondrial marker and muscle fibre genetic modulation in rat cardiac muscles. J Anim Physiol Anim Nutr (Berl) 2019; 104:1938-1947. [PMID: 31733001 DOI: 10.1111/jpn.13249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/14/2019] [Accepted: 10/08/2019] [Indexed: 11/30/2022]
Abstract
Information about the role of moderate acute treadmill training in modulating autophagy and mitochondrial markers that might be correlated with alteration of muscle fibre gene expression in rat cardiac muscles is very limited. In this present study, the researchers divided twenty male Wistar rats into four groups: sedentary control, 3, 6 and 15 days and subjected them to treadmill training with moderate intensity (20 m/min), 30 min each day. RNA was extracted from cardiac muscles and stored in temperature of -80°C. Specific primers were utilized for semi-quantitative PCR. Treadmill training decreased autophagy-related gene expression (LC3, p62) and upper stream signalling of autophagy (PIK3CA, Akt and mTOR) in 3 and 6 d, but stimulated gene expression of mitochondrial markers (PGC1α, Cox1, Cox2 and Cox4) in 15 days. αMHC gene expression increased while βMHC gene expression decreased in 15 days. In line with this, autophagy-related genes increased in 3 and 6 days and returned to baseline in 15 days. The increment in mitochondrial gene expression might be correlated with shifting gene expression of αMHC and βMHC in 15 days. Taken together, acute adaptation in cardiac muscles is stimulated by genetic modulation of autophagy, mitochondrial marker and muscle fibre that may explain physiological cardiac adaptation after training. This study can be used as a reference for optimizing performance in period of cardiac muscle adaptation stimulated by treadmill training.
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Affiliation(s)
- Julia Windi Gunadi
- Department of Physiology, Faculty of Medicine, Maranatha Christian University, Bandung, Indonesia.,Postgraduate Program of Biomedical Science, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Vita Murniati Tarawan
- Department of Biomedical Science, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Iwan Setiawan
- Department of Biomedical Science, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Hanna Goenawan
- Department of Biomedical Science, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia.,Division of Biological Activity, Central Laboratory, Universitas Padjadjaran, Bandung, Indonesia
| | - Hana Ratnawati
- Department of Histology, Faculty of Medicine, Maranatha Christian University, Bandung, Indonesia
| | - Yenni Limyati
- Physical Medicine and Rehabilitation Department, Immanuel Hospital, Bandung, Indonesia.,Faculty of Medicine, Maranatha Christian University, Bandung, Indonesia
| | - Oeij Anindita Adhika
- Department of Anatomy, Faculty of Medicine, Maranatha Christian University, Bandung, Indonesia
| | - Andreas Wardono Santoso
- Physical Medicine and Rehabilitation Department, Siloam Hospital Lippo Cikarang, Bekasi, Indonesia
| | - Ronny Lesmana
- Department of Biomedical Science, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia.,Division of Biological Activity, Central Laboratory, Universitas Padjadjaran, Bandung, Indonesia.,Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
| | - Unang Supratman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Bandung, Indonesia
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Marschner RA, Banda P, Wajner SM, Markoski MM, Schaun M, Lehnen AM. Short-term exercise training improves cardiac function associated to a better antioxidant response and lower type 3 iodothyronine deiodinase activity after myocardial infarction. PLoS One 2019; 14:e0222334. [PMID: 31513640 PMCID: PMC6742396 DOI: 10.1371/journal.pone.0222334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/27/2019] [Indexed: 12/11/2022] Open
Abstract
Aims We assessed the effects of a short-term exercise training on cardiac function, oxidative stress markers, and type 3 iodothyronine deiodinase (D3) activity in cardiac tissue of spontaneously hypertensive rats (SHR) following experimental myocardial infarction (MI). Methods Twenty-four SHR (aged 3 months) were allocated to 4 groups: sham+sedentary, sham+trained, MI+sedentary and MI+trained. MI was performed by permanent ligation of the coronary artery. Exercise training (treadmill) started 96 hours after MI and lasted for 4 weeks (~60% maximum effort, 4x/week and 40 min/day). Cardiac function (echocardiography), thioredoxin reductase (TRx), total carbonyl levels, among other oxidative stress markers and D3 activity were measured. A Generalized Estimating Equation was used, followed by Bonferroni’s test (p<0.05). Results MI resulted in an increase in left ventricular mass (p = 0.002) with decreased cardiac output (~22.0%, p = 0.047) and decreased ejection fraction (~41%, p = 0.008) as well as an increase in the carbonyl levels (p = 0.001) and D3 activity (~33%, p<0.001). Exercise training resulted in a decrease in left ventricular mass, restored cardiac output (~34%, p = 0.048) and ejection fraction (~20%, p = 0.040), increased TRx (~85%, p = 0.007) and reduced carbonyl levels (p<0.001) and D3 activity (p<0.001). Conclusions Our short-term exercise training helped reverse the effects of MI on cardiac function. These benefits seem to derive from a more efficient antioxidant response and lower D3 activity in cardiac tissue.
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Affiliation(s)
- Rafael Aguiar Marschner
- Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology, Porto Alegre, Rio Grande do Sul, Brazil
- Thyroid Division, Endocrinology Service, Hospital de Clínicas de Porto Alegre/Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patrícia Banda
- Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology, Porto Alegre, Rio Grande do Sul, Brazil
| | - Simone Magagnin Wajner
- Thyroid Division, Endocrinology Service, Hospital de Clínicas de Porto Alegre/Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Maximiliano Schaun
- Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology, Porto Alegre, Rio Grande do Sul, Brazil
| | - Alexandre Machado Lehnen
- Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology, Porto Alegre, Rio Grande do Sul, Brazil
- * E-mail:
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Cardiac hypertrophy is stimulated by altered training intensity and correlates with autophagy modulation in male Wistar rats. BMC Sports Sci Med Rehabil 2019; 11:9. [PMID: 31198561 PMCID: PMC6558762 DOI: 10.1186/s13102-019-0121-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 05/29/2019] [Indexed: 01/01/2023]
Abstract
Background The mechanism for cardiac hypertrophy process that would be a benefit for improvement of cardiovascular endurance needed to be investigated throughly. Specific intensity of training may play a role for homeostasis process in cardiac during training. In the present study, we examine the effect of different intensity of treadmill training on cardiac hypertrophy process and autophagy related gene expression in male wistar rats. Methods Three different intensities of treadmill training were conducted on 15 male wistar rats (Low Intensity: 10 m/minute, Moderate Intensity: 20 m/minute, and High Intensity: 30 m/minute) compared to 5 sedentary rats as control. Training duration was 30 min per day, frequency was 5 days per week, during 8 weeks period. Heart weight and heart weight/body weight ratio were measured after the experiments. Left ventricle myocardium was taken for microscopic analysis with HE staining. mRNA was extracted from left ventricle myocardium for examining αMHC and autophagy related gene expression (PIK3CA, mTOR, LC3, p62) using semi quantitative PCR. Results We observed that altered training intensity might stimulate cardiac hypertrophy process. MI and HI training increased heart weight and heart weight/body weight ratio. This finding is supported by microscopic result in which cardiac hypertrophy was found in MI and HI, with focal fibrosis in HI, and increased αMHC gene expression in MI (p < 0.05) and HI (p = 0.076). We also observed decreased PIK3CA (LI 0.8 fold, MI 0.9 fold), mTOR (LI 0.9 fold, MI 0.9 fold), LC3 (LI 0.9 fold, MI 0.8 fold, HI 0.8 fold), and p62 (LI 0.8 fold, MI 0.9 fold) compared to control. Interestingly, we found increased mTOR (HI 1.1 fold) and p62 (HI 1.1 fold) compared to control. Conclusion Training with different intensity creates different cardiac hypertrophy process based on heart weight and heart weight/body weight ratio, microscopic examination and autophagy related gene expression.
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Farenia R, Lesmana R, Uchida K, Iwasaki T, Koibuchi N, Shimokawa N. Changes in biomarker levels and myofiber constitution in rat soleus muscle at different exercise intensities. Mol Cell Biochem 2019; 458:79-87. [PMID: 30993497 DOI: 10.1007/s11010-019-03532-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/10/2019] [Indexed: 11/30/2022]
Abstract
Although exercise affects the function and structure of skeletal muscle, our knowledge regarding the biomedical alterations induced by different intensities of exercise is incomplete. Here we report on the changes in biomarker levels and myofiber constitution in the rat soleus muscle induced by exercise intensity. Male adult rats at 7 weeks of age were divided into 3 groups by exercise intensity, which was set based on the accumulated lactate levels in the blood using a treadmill: stationary control (0 m/min), aerobic exercise (15 m/min), and anaerobic exercise (25 m/min). The rats underwent 30 min/day treadmill training at different exercise intensities for 14 days. Immediately after the last training session, the soleus muscle was dissected out in order to measure the muscle biomarker levels and evaluate the changes in the myofibers. The mRNA expression of citrate synthase, glucose-6-phosphate dehydrogenase, and Myo D increased with aerobic exercise, while the mRNA expression of myosin heavy-chain I and Myo D increased in anaerobic exercise. These results suggest that muscle biomarkers can be used as parameters for the muscle adaptation process in aerobic/anaerobic exercise. Interestingly, by 14 days after the anaerobic exercise, the number of type II (fast-twitch) myofibers had decreased by about 20%. Furthermore, many macrophages and regenerated fibers were observed in addition to the injured fibers 14 days after the anaerobic exercise. Constitutional changes in myofibers due to damage incurred during anaerobic exercise are necessary for at least about 2 weeks. These results indicate that the changes in the biomarker levels and myofiber constitution by exercise intensity are extremely important for understanding the metabolic adaptations of skeletal muscle during physical exercise.
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Affiliation(s)
- Reni Farenia
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Gunma, 371-8511, Japan.,Department of Basic Science, Physiology Division, Faculty of Medicine, Universitas Padjadjaran, Bandung, 45363, Indonesia
| | - Ronny Lesmana
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Gunma, 371-8511, Japan.,Department of Basic Science, Physiology Division, Faculty of Medicine, Universitas Padjadjaran, Bandung, 45363, Indonesia.,Central Laboratory, Universitas Padjadjaran, Bandung, 45363, Indonesia
| | - Kaoru Uchida
- Department of Nutrition, Takasaki University of Health and Welfare, Gunma, 370-0033, Japan
| | - Toshiharu Iwasaki
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Gunma, 371-8511, Japan
| | - Noriyuki Koibuchi
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Gunma, 371-8511, Japan
| | - Noriaki Shimokawa
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Gunma, 371-8511, Japan. .,Department of Nutrition, Takasaki University of Health and Welfare, Gunma, 370-0033, Japan.
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Kim Y, Memme JM, Hood DA. Application of Chronic Stimulation to Study Contractile Activity-induced Rat Skeletal Muscle Phenotypic Adaptations. J Vis Exp 2018. [PMID: 29443047 DOI: 10.3791/56827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Skeletal muscle is a highly adaptable tissue, as its biochemical and physiological properties are greatly altered in response to chronic exercise. To investigate the underlying mechanisms that bring about various muscle adaptations, a number of exercise protocols such as treadmill, wheel running, and swimming exercise have been used in the animal studies. However, these exercise models require a long period of time to achieve muscle adaptations, which may be also regulated by humoral or neurological factors, thus limiting their applications in studying the muscle-specific contraction-induced adaptations. Indirect low frequency stimulation (10 Hz) to induce chronic contractile activity (CCA) has been used as an alternative model for exercise training, as it can successfully lead to muscle mitochondrial adaptations within 7 days, independent of systemic factors. This paper details the surgical techniques required to apply the treatment of CCA to the skeletal muscle of rats, for widespread application in future studies.
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Affiliation(s)
- Yuho Kim
- Muscle Health Research Centre, York University; School of Kinesiology and Health Science, York University; National Heart, Lung, and Blood Institute, National Institutes of Health
| | - Jonathan M Memme
- Muscle Health Research Centre, York University; School of Kinesiology and Health Science, York University
| | - David A Hood
- Muscle Health Research Centre, York University; School of Kinesiology and Health Science, York University;
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13
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Dietrich JW, Midgley JEM, Hoermann R. Editorial: "Homeostasis and Allostasis of Thyroid Function". Front Endocrinol (Lausanne) 2018; 9:287. [PMID: 29922229 PMCID: PMC5996081 DOI: 10.3389/fendo.2018.00287] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 05/15/2018] [Indexed: 12/14/2022] Open
Affiliation(s)
- Johannes W. Dietrich
- Medical Department 1, Endocrinology and Diabetology, Bergmannsheil University Hospitals, Ruhr University of Bochum, Bochum, North Rhine-Westphalia, Germany
- Ruhr Centre of Rare Diseases (CeSER), Ruhr University of Bochum, Bochum, North Rhine-Westphalia, Germany
- Ruhr Centre of Rare Diseases (CeSER), Witten/Herdecke University, Bochum, North Rhine-Westphalia, Germany
- *Correspondence: Johannes W. Dietrich,
| | | | - Rudolf Hoermann
- Private Consultancy, Research and Development, Yandina, QLD, Australia
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