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Wang ZZ, Xu HC, Zhou HX, Zhang CK, Li BM, He JH, Ni PS, Yu XM, Liu YQ, Li FH. Long-term detraining reverses the improvement of lifelong exercise on skeletal muscle ferroptosis and inflammation in aging rats: fiber-type dependence of the Keap1/Nrf2 pathway. Biogerontology 2023; 24:753-769. [PMID: 37289374 DOI: 10.1007/s10522-023-10042-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 05/27/2023] [Indexed: 06/09/2023]
Abstract
We investigated the effects of lifelong aerobic exercise and 8 months of detraining after 10 months of aerobic training on circulation, skeletal muscle oxidative stress, and inflammation in aging rats. Sprague-Dawley rats were randomly assigned to the control (CON), detraining (DET), and lifelong aerobic training (LAT) groups. The DET and LAT groups began aerobic treadmill exercise at the age of 8 months and stopped training at the 18th and 26th month, respectively; all rats were sacrificed when aged 26 months. Compared with CON, LAT remarkably decreased serum and aged skeletal muscle 4-hydroxynonenal (4-HNE) and 8-hydroxy-2-deoxyguanosine (8-OHdG) levels. Superoxide dismutase 2(SOD2) levels were higher in the LAT group than in the CON group in skeletal muscle. However, DET remarkably decreased SOD2 protein expression and content in the skeletal muscle and increased malondialdehyde (MDA) level compared with LAT. Compared with LAT, DET remarkably downregulated adiponectin and upregulated tumor necrosis factor alpha (TNF-α) expression, while phosphoinositide 3-kinase (PI3K), protein kinase B (AKT), and 70-kDa ribosomal protein S6 kinase (P70S6K) protein expression decreased, and that of FoxO1 and muscle atrophy F-box (MAFbX) proteins increased in the quadriceps femoris. Adiponectin and TNF-α expression in the soleus muscle did not change between groups, whereas that of AKT, mammalian target of rapamycin (mTOR), and P70S6K was lower in the soleus in the DET group than in that in the LAT group. Compared with that in the LAT group, sestrin1 (SES1) and nuclear factor erythroid 2-related factor 2 (Nrf2) protein expression in the DET group was lower, whereas Keap1 mRNA expression was remarkably upregulated in the quadriceps femoris. Interestingly, the protein and mRNA levels of SES1, Nrf2, and Keap1 in soleus muscle did not differ between groups. LAT remarkably upregulated ferritin heavy polypeptide 1(FTH), glutathione peroxidase 4(GPX4), and solute carrier family 7member 11 (SLC7A11) protein expression in the quadriceps femoris and soleus muscles, compared with CON. However, compared with LAT, DET downregulated FTH, GPX4, and SLC7A11 protein expression in the quadriceps femoris and soleus muscles. Long-term detraining during the aging phase reverses the improvement effect of lifelong exercise on oxidative stress, inflammation, ferroptosis, and muscle atrophy in aging skeletal muscle. The quadriceps femoris is more evident than the soleus, which may be related to the different changes in the Keap1/Nrf2 pathway in different skeletal muscles.
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Affiliation(s)
- Zhuang-Zhi Wang
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Hai-Chen Xu
- Department of Rehabilitation, Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, China
| | - Huan-Xia Zhou
- Department of Rehabilitation, Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, China
| | - Chen-Kai Zhang
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Bo-Ming Li
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Jia-Han He
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Pin-Shi Ni
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Xiao-Ming Yu
- Department of Rehabilitation, Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, China
| | - Yun-Qing Liu
- Changzhou Sports Hospital, Changzhou, 213022, China
| | - Fang-Hui Li
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, China.
- School of Sport Sciences, Zhaoqing University, Zhaoqing, 222023, China.
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Teles MC, Oliveira Portes AM, Campos Coelho BI, Resende LT, Isoldi MC. Cardiac changes in spontaneously hypertensive rats: Modulation by aerobic exercise. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 177:109-124. [PMID: 36347337 DOI: 10.1016/j.pbiomolbio.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/10/2022] [Accepted: 11/01/2022] [Indexed: 11/08/2022]
Abstract
Systemic arterial hypertension is a multifactorial clinical condition characterized by high and sustained levels of blood pressure. For a better understanding of the pathophysiology of hypertension, studies are conducted with spontaneously hypertensive animals, which allow the investigation of physiological changes that in most cases cannot be studied in humans. In these animals, myocardial remodeling, increased pro-inflammatory markers, redox imbalance and contractile dysfunctions that lead to changes in cardiac function can be observed. However, it can be inferring that aerobic training improves cardiac function and cardiomyocyte contractility, in addition to controlling inflammation and reducing oxidative stress in cardiac muscle, despite this, the precise mechanisms by which physical exercise improves cardiovascular control are not fully understood. In this review, we provide an overview of the pathophysiological changes that affect the heart of spontaneously hypertensive animals and their modulation by aerobic exercise.
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Affiliation(s)
- Maria Cecília Teles
- Laboratory of Cell Signaling, Department Pharmacy, Federal University of Ouro Preto, Ouro Preto, 35400-000, MG, Brazil.
| | | | - Bianca Iara Campos Coelho
- Laboratory of Cell Signaling, Department Nutrition, Federal University of Ouro Preto, Ouro Preto, 35400-000, MG, Brazil
| | - Letícia Teresinha Resende
- Laboratory of Cell Signaling, Department of General Biology, Federal University of Ouro Preto, Ouro Preto, 35400-000, MG, Brazil
| | - Mauro Cesar Isoldi
- Laboratory of Cell Signaling, Department of General Biology, Federal University of Ouro Preto, Ouro Preto, 35400-000, MG, Brazil
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Kolomeyets NL, Ivonin AG, Peshkin EA, Roshchevskaya IM. Bioelectrical Impedance of the Left Ventricular Myocardium, Lung in Rats after Forced Swimming Training and Subsequent Detraining. J EVOL BIOCHEM PHYS+ 2023. [DOI: 10.1134/s0022093023010064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Luo M, Cao C, Niebauer J, Yan J, Ma X, Chang Q, Zhang T, Huang X, Liu G. Effects of different intensities of continuous training on vascular inflammation and oxidative stress in spontaneously hypertensive rats. J Cell Mol Med 2021; 25:8522-8536. [PMID: 34331512 PMCID: PMC8419160 DOI: 10.1111/jcmm.16813] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 12/17/2022] Open
Abstract
We aimed to study the effects and underlying mechanism of different intensities of continuous training (CT) on vascular inflammation and oxidative stress in spontaneously hypertensive rats (SHR). Rats were divided into five groups (n = 12): Wistar‐Kyoto rats sedentary group (WKY‐S), sedentary group (SHR‐S), low‐intensity CT group (SHR‐L), medium‐intensity CT group (SHR‐M) and high‐intensity CT group (SHR‐H). Changes in body mass, heart rate and blood pressure were recorded. The rats were euthanized after 14 weeks, and blood and vascular tissue samples were collected. Haematoxylin and Eosin staining was used to observe the aortic morphology, and Western blot was used to detect the expression of mesenteric artery proteins. After CT, the mean arterial pressures improved in SHR‐L and SHR‐M and increased in SHR‐H compared with those in SHR‐S. Vascular inflammation and oxidative stress levels significantly subsided in SHR‐L and SHR‐M (p < 0.05), whereas in SHR‐H, only vascular inflammation significantly subsided (p < 0.05), and oxidative stress remained unchanged (p > 0.05). AMPK and SIRT1/3 expressions in SHR‐L and SHR‐M were significantly up‐regulated than those in SHR‐S (p < 0.05). These results indicated that low‐ and medium‐intensity CT can effectively reduce the inflammatory response and oxidative stress of SHR vascular tissue, and high‐intensity CT can improve vascular tissue inflammation but not oxidative stress.
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Affiliation(s)
- Minghao Luo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunmei Cao
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Josef Niebauer
- University Institute of Sports Medicine, Prevention and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | - Jianghong Yan
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Xindong Ma
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Qing Chang
- The College of Exercise Medicine, Chongqing Medical University, Chongqing, China
| | - Ting Zhang
- The Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong, China
| | - Xiaoxiao Huang
- The College of Exercise Medicine, Chongqing Medical University, Chongqing, China
| | - Guochun Liu
- The College of Exercise Medicine, Chongqing Medical University, Chongqing, China
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5
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Jakovljevic B, Plecevic S, Petkovic A, Turnic TN, Milosavljevic I, Radoman K, Srejovic I. Is 3 Weeks of Exercise Enough to Change Blood Pressure and Cardiac Redox State in Hypertensive Rats? SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2019. [DOI: 10.1515/sjecr-2017-0049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
The investigation was aimed to evaluate the effects of 3-weeks swimming exercise on blood pressure and redox status in high-salt-induced hypertensive rats. Male Wistar albino rats (n=40, 6 weeks old) were divided into 4 groups: 1. hypertensive rats that swam for 3 weeks; 2. sedentary hypertensive control rats; 3. normotensive rats that swam for 3 weeks; 4. sedentary normotensive control rats. Hypertensive animals were on high concentrated sodium (8% NaCl) solution for 4 weeks (period of induction of hypertension). After sacrificing, hearts were isolated and perfused according to Langendorff technique at gradually increased coronary per-fusion pressure from 40–120 cmH2O. The oxidative stress markers were determined in coronary venous effluent: the index of lipid peroxidation (measured as TBARS), nitrites (NO2
−), superoxide anion radical (O2
−) and hydrogen peroxide (H2O2). Swimming did not lead to significant changes in levels of TBARS, NO2
−, O2
− in any of compared groups while levels of H2O2 were significantly higher in swimming hyper-tensive group comparing to swimming normotensive group at coronary perfusion pressure of 80–120 cmH2O. Our results indicate that the short-term swimming start to reduce blood pressure. In addition it seems that this type of swimming duration does not promote cardiac oxidative stress damages.
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Affiliation(s)
| | - Sasa Plecevic
- Sports Medicine Association of Serbia , Belgrade , Serbia
| | - Anica Petkovic
- University of Kragujevac , Faculty of Medical Sciences, Department of Pharmacy , Kragujevac , Serbia
| | - Tamara Nikolic Turnic
- University of Kragujevac , Faculty of Medical Sciences, Department of Pharmacy , Kragujevac , Serbia
| | - Isidora Milosavljevic
- University of Kragujevac , Faculty of Medical Sciences, Department of Pharmacy , Kragujevac , Serbia
| | | | - Ivan Srejovic
- University of Kragujevac , Faculty of Medical Sciences, Department of Physiology , Kragujevac , Serbia
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Mury P, Chirico EN, Mura M, Millon A, Canet-Soulas E, Pialoux V. Oxidative Stress and Inflammation, Key Targets of Atherosclerotic Plaque Progression and Vulnerability: Potential Impact of Physical Activity. Sports Med 2019; 48:2725-2741. [PMID: 30302720 DOI: 10.1007/s40279-018-0996-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Atherosclerosis, a complex cardiovascular disease, is a leading cause of mortality and morbidity worldwide. Oxidative stress and inflammation are both involved in the development of atherosclerotic plaque as they increase the biological processes associated with this pathology, such as endothelial dysfunction and macrophage recruitment and adhesion. Atherosclerotic plaque rupture leading to major ischemic events is the result of vulnerable plaque progression, which is a result of the detrimental effect of oxidative stress and inflammation on risk factors for atherosclerotic plaque rupture, such as intraplaque hemorrhage, neovascularization, and fibrous cap thickness. Thus, both are key targets for primary and secondary interventions. It is well recognized that chronic physical activity attenuates oxidative stress in healthy subjects via the improvement of antioxidant enzyme capacities and inflammation via the enhancement of anti-inflammatory molecules. Moreover, it was recently shown that chronic physical activity could decrease oxidative stress and inflammation in atherosclerotic patients. The aim of this review is to summarize the role of oxidative stress and inflammation in atherosclerosis and the results of therapeutic interventions targeting them in both preclinical and clinical studies. The effects of chronic physical activity on these two key processes are then reviewed in vulnerable atherosclerotic plaques in both coronary and carotid arteries.
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Affiliation(s)
- Pauline Mury
- Team Vascular Biology and Red Blood Cell, Interuniversity Laboratory of Human Movement Biology, University Claude Bernard Lyon 1, University of Lyon, Faculté de Médecine Lyon Est, 8 Avenue Rockefeller, 69008, Lyon, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Erica N Chirico
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Mathilde Mura
- Team Vascular Biology and Red Blood Cell, Interuniversity Laboratory of Human Movement Biology, University Claude Bernard Lyon 1, University of Lyon, Faculté de Médecine Lyon Est, 8 Avenue Rockefeller, 69008, Lyon, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Antoine Millon
- University of Lyon, University Claude Bernard Lyon 1, CarMeN Laboratory, INSERM U1060, Bron, France.,Department of Vascular Surgery, Edouard Herriot Hospital, Lyon, France
| | - Emmanuelle Canet-Soulas
- University of Lyon, University Claude Bernard Lyon 1, CarMeN Laboratory, INSERM U1060, Bron, France
| | - Vincent Pialoux
- Team Vascular Biology and Red Blood Cell, Interuniversity Laboratory of Human Movement Biology, University Claude Bernard Lyon 1, University of Lyon, Faculté de Médecine Lyon Est, 8 Avenue Rockefeller, 69008, Lyon, France. .,Laboratory of Excellence GR-Ex, Paris, France. .,Institut Universitaire de France, Paris, France.
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7
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Tófolo LP, Rinaldi W, Gôngora AB, Matiusso CCI, Pavanello A, Malta A, de Almeida DL, Ribeiro TA, Oliveira AR, Peres MNC, Armitage JA, Mathias PCDF, Palma-Rigo K. Moderate Physical Training Ameliorates Cardiovascular Dysfunction Induced by High Fat Diet After Cessation of Training in Adult Rats. Front Physiol 2019; 10:170. [PMID: 30930783 PMCID: PMC6423496 DOI: 10.3389/fphys.2019.00170] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/12/2019] [Indexed: 12/11/2022] Open
Abstract
We aimed to test whether moderate physical training can induce long-lasting protection against cardiovascular risk factors induced by high fat diet (HFD) intake, even after cessation of training. 90-days-old Wistar rats were submitted to a sedentary lifestyle or moderate physical training, three times a week, for 30 days. Following this, at 120 days-of age, sedentary and trained rats received a hypercaloric diet (HFD) or a commercial diet normal fat diet (NFD) for 30 days. Body weight (BW) and food intake were evaluated weekly. At 150 days-of age, hemodynamic measures (systolic, diastolic, mean blood pressure, pulse pressure, pulse interval and heart rate) were made via an indwelling femoral artery catheter. Beat-to-beat data were analyzed to calculate power spectra of systolic blood pressure (SBP) and pulse interval. After euthanasia, mesenteric fat pads were removed and weighted and total blood was stored for later analysis of lipid profile. Consumption of a HFD increased blood pressure (BP), pulse pressure, low frequency BP variability, BW gain, fat pad stores and induced dyslipidemia. Interestingly, prior physical training was able to partially protect against this rise in BP and body fat stores. Prior physical training did not totally protect against the effects of HFD consumption but previously trained animals did demonstrate resistance to the development of cardiometabolic alterations, which illustrate that the benefits of physical training may be partially maintained even after 30 days of detraining period.
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Affiliation(s)
- Laize Peron Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil.,Department of Physical Education, Faculty of Biomedical Sciences of Cacoal, Cacoal, Brazil
| | - Wilson Rinaldi
- Department of Physical Education, State University of Maringá, Maringá, Brazil
| | - Adriane Barreto Gôngora
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Camila Cristina Ianoni Matiusso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Audrei Pavanello
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Ananda Malta
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Douglas Lopes de Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | | | - Maria Natalia Chimirri Peres
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | | | - Paulo Cezar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Brazil.,Faculdade Adventista Paranaense, Ivatuba, Brazil
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Coqueiro RDS, Soares TDJ, Pereira R, Correia TML, Coqueiro DSO, Oliveira MV, Marques LM, de Sá CKC, de Magalhães ACM. Therapeutic and preventive effects of exercise on cardiometabolic parameters in aging and obese rats. Clin Nutr ESPEN 2018; 29:203-212. [PMID: 30661688 DOI: 10.1016/j.clnesp.2018.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 07/13/2018] [Accepted: 10/06/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Aging, obesity and sedentarism are among the most important predictors of cardiometabolic diseases. Aiming to reduce the impact of the combination of these three factors, we tested the therapeutic and preventive effects of exercise in aging and obese rats on the following cardiometabolic disease risk parameters: body fat, blood pressure, blood lipids, and glycemic homeostasis. METHODS Eighteen male Wistar rats (initial age = 4 months, and final age = 14 months) were randomly distributed into three aging and obese groups: sedentary, therapeutic exercise and preventive exercise. Food and caloric intake, body adiposity, muscle mass, cardiovascular parameters, biochemical markers, glycemic homeostasis, and gene expression of insulin-dependent, insulin-independent and insulin resistance pathways in skeletal muscle were evaluated. RESULTS Therapeutic and preventive exercises were associated with higher food and caloric intake, and expression of TBC1D1 in the soleus muscle, as well as lower total cholesterol/HDL and LDL/HDL ratios, glucose levels at the end (90 min) of the glucose tolerance test and IKBKB expression in the gastrocnemius and soleus muscles. Only the preventive exercise improved the cardiovascular and body composition parameters, glucose tolerance, insulin resistance and insulin sensitivity, besides reducing total cholesterol, triglycerides, triglycerides/HDL ratio, plasmatic insulin and MAPK8 expression in soleus. The preventive exercise group also presented greater expression of INRS, IRS1, IRS2, PIK3CA, AKT1, and SLC2A4 in gastrocnemius and soleus, TBC1D1 in gastrocnemius, and AKT2 and PRKAA1 in soleus. CONCLUSIONS Therapeutic exercise promoted some improvements on cardiometabolic parameters in aging and obese rats, however, the best benefits were achieved through the preventive exercise.
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Affiliation(s)
- Raildo da Silva Coqueiro
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil; Universidade Estadual do Sudoeste da Bahia, Departamento de Saúde, Jequié, Brazil.
| | - Telma de Jesus Soares
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
| | - Rafael Pereira
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Jequié, Brazil
| | - Thiago Macêdo Lopes Correia
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
| | | | | | - Lucas Miranda Marques
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
| | | | - Amélia Cristina Mendes de Magalhães
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
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9
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Kilic-Toprak E, Kilic-Erkek O, Abban-Mete G, Caner V, Baris IC, Turhan G, Kucukatay V, Senol H, Kuru O, Bor-Kucukatay M. Contribution of Heme Oxygenase 2 to Blood Pressure Regulation in Response to Swimming Exercise and Detraining in Spontaneously Hypertensive Rats. Med Sci Monit 2018; 24:5851-5859. [PMID: 30132448 PMCID: PMC6116639 DOI: 10.12659/msm.908992] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background We aimed to determine the effects of exercise followed by detraining on systolic blood pressure (SBP), heme oxygenase 2 (HO-2) expression, and carboxyhemoglobin (COHb) concentration in spontaneously hypertensive rats (SHR) to explain the role of carbon monoxide (CO) in this process. Material/Methods Animals were randomized into exercised and detrained groups. Corresponding sedentary rats were grouped as Time 1–2. Swimming of 60 min/5 days/week for 10 weeks was applied. Detraining rats discontinued training for an additional 5 weeks. Gene and protein expressions were determined by real-time PCR and immunohistochemistry. Results Aorta HO-2 histological scores (HSCORE) of hypertensive rats were lower, while SBP was higher. Swimming caused enhancement of HO-2 immunostaining in aorta endothelium and adventitia of SHR. Exercise induced elevation of blood COHb index in SHR. Synchronous BP lowering effect of exercise was observed. HO-2 mRNA expression, HSCORE, and blood COHb index were unaltered during detraining, while SBP was still low in SHR. Conclusions CO synthesized by HO-2 at least partly plays a role in SBP regulation in the SHR- and BP-lowering effect of exercise. Regular exercise with short-term pauses may be advised to both hypertensives and individuals who are at risk.
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Affiliation(s)
- Emine Kilic-Toprak
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ozgen Kilic-Erkek
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Gulcin Abban-Mete
- Department of Histology-Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Vildan Caner
- Department of Medical Genetics, Faculty of Medicine Kinikli, Pamukkale University, Denizli, Turkey
| | - Ikbal Cansu Baris
- Department of Medical Biology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Gurkan Turhan
- Department of Histology-Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Vural Kucukatay
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Hande Senol
- Department of Biostatistics, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Oktay Kuru
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Melek Bor-Kucukatay
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
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10
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Rodrigues B, Feriani DJ, Gambassi BB, Irigoyen MC, Angelis KD, Hélio José Júnior C. Exercise training on cardiovascular diseases: Role of animal models in the elucidation of the mechanisms. MOTRIZ: REVISTA DE EDUCACAO FISICA 2017. [DOI: 10.1590/s1980-6574201700si0005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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11
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Keller J, Kahlhöfer J, Peter A, Bosy-Westphal A. Effects of Low versus High Glycemic Index Sugar-Sweetened Beverages on Postprandial Vasodilatation and Inactivity-Induced Impairment of Glucose Metabolism in Healthy Men. Nutrients 2016; 8:E802. [PMID: 27973411 PMCID: PMC5188457 DOI: 10.3390/nu8120802] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/01/2016] [Accepted: 12/05/2016] [Indexed: 12/25/2022] Open
Abstract
Intake of sugar-sweetened beverages (SSB) may contribute to cardiovascular risk. The aim of this study was to investigate whether functional sugars with low compared to high glycemic index (GI) have beneficial effects on arterial stiffness during a period of low-physical activity. In a controlled cross-over dietary intervention (55% CHO, 30% fat, 15% protein), 13 healthy men (age: 23.7 ± 2.2 years, body mass index: 23.6 ± 1.9 kg/m²) completed 2 × 1 week of low physical activity following 1 week of normal physical activity (2363 ± 900 vs. 11,375 ± 3124 steps/day). During inactive phases participants consumed either low-GI (isomaltulose) or high-GI SSB (maltodextrin-sucrose), providing 20% of energy requirements. Postprandial vasodilatation (augmentation index, AIx), insulin sensitivity (IS) and Glucagon-like-peptide 1 (GLP-1) responses were measured during a meal test before and after SSB-intervention. Compared to maltodextrin-sucrose-SSB, postprandial vasodilatation was prolonged (AIx after 120 min: 9.9% ± 4.3% vs. 11.4% ± 3.7%, p < 0.05) and GLP-1 secretion was higher with isomaltulose-SSB (total area under the GLP-1 curve (tAUCGLP)-1: 8.0 ± 4.4 vs. 5.4 ± 3.4 pM × 3 h; p < 0.05). One week of low-physical activity led to impaired IS that was attenuated with low-GI SSB consumption, but did not affect arterial stiffness (p > 0.05). Higher postprandial GLP-1 secretion after intake of low compared to high-GI beverages may contribute to improved postprandial vasodilatation. Although one week of low-physical activity led to marked impairment in IS, it had no effect on arterial stiffness in healthy men.
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Affiliation(s)
- Judith Keller
- Institute of Nutritional Medicine, University of Hohenheim, 70599 Stuttgart, Germany.
| | - Julia Kahlhöfer
- Institute of Nutritional Medicine, University of Hohenheim, 70599 Stuttgart, Germany.
| | - Andreas Peter
- Department of Internal Medicine, Division of Endocrinology, Diabetology, Angiology, Nephrology and Clinical Chemistry, University Hospital of Tübingen, 72076 Tübingen, Germany.
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich, University of Tübingen, 72076 Tübingen, Germany.
- German Center for Diabetes Research (DZD), 72076 Tübingen, Germany.
| | - Anja Bosy-Westphal
- Institute of Nutritional Medicine, University of Hohenheim, 70599 Stuttgart, Germany.
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