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Liu MN, Yeh HL, Kuan AS, Tsai SJ, Liou YJ, Walsh V, Lau CI. High-Frequency External Muscle Stimulation Reduces Depressive Symptoms in Older Male Veterans: A Pilot Study. J Geriatr Psychiatry Neurol 2021; 34:37-45. [PMID: 32242480 DOI: 10.1177/0891988720915524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Late-life depression (LLD) is a severe public health problem. Given that pharmacological treatments for LLD are limited by their side effects, development of efficient and tolerable nonpharmacological treatment for LLD is urgently required. This study investigated whether high-frequency external muscle stimulation could reduce depressive symptoms in LLD. METHODS Twenty-two older male veterans with major depression were recruited and randomized into a treatment (n = 9) or sham control group (n = 13). The groups received high-frequency external muscle stimulation or sham intervention 3 times per week for 12 weeks. Clinical symptoms and muscle strength were evaluated at baseline and every 2 weeks. RESULTS The 2 groups were homogeneous in age, baseline clinical symptoms, and muscle strength. The treatment group showed significant improvement in depression and anxiety scores and muscle strength (all P < .01), whereas the control group showed no significant change after the 12-week follow-up. Compared to the control group, the treatment group showed significant improvements in depression (Geriatric Depression Scale, P = .009; Hamilton Depression Rating Scale, P = .007) and anxiety scores (HAMA, P = .008) and muscle strength (all P < .001). Changes in depression and anxiety levels were significantly correlated with changes in muscle strength after the study. In the treatment group, we observed a trend of correlation between the reduction in depression and muscle strength gains. CONCLUSION High-frequency external muscle stimulation appears to be an effective treatment for older patients with LLD. Large studies with more tests and/or conducted in different populations are warranted to validate these preliminary findings.
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Affiliation(s)
- Mu-N Liu
- Department of Psychiatry, 46615Taipei Veterans General Hospital, Taipei.,Institute of Brain Science, National Yang-Ming University, Taipei.,Department of Neurology, Memory & Aging Center, University of California, San Francisco, CA, USA
| | - Heng-Liang Yeh
- Health Care Group, Taipei Veterans Home, New-Taipei City
| | - Ai Seon Kuan
- Institute of Public Health, National Yang-Ming University, Taipei.,Division of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei
| | - Shih-Jen Tsai
- Department of Psychiatry, 46615Taipei Veterans General Hospital, Taipei.,School of Medicine, National Yang-Ming University, Taipei
| | - Ying-Jay Liou
- Department of Psychiatry, 46615Taipei Veterans General Hospital, Taipei.,School of Medicine, National Yang-Ming University, Taipei
| | - Vincent Walsh
- Applied Cognitive Neuroscience Group, Institute of Cognitive Neuroscience, 4919University College London, London, United Kingdom
| | - Chi-Ieong Lau
- Applied Cognitive Neuroscience Group, Institute of Cognitive Neuroscience, 4919University College London, London, United Kingdom.,Department of Neurology, 38029Shin Kong Wu Ho-Su Memorial Hospital, Taipei.,Fu-Jen Catholic University, College of Medicine, Taipei.,Institute of Biophotonics and Brain Research Center, National Yang-Ming University, Taipei.,University Hospital, Taipa, Macau
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Abu-Khaber HA, Abouelela AMZ, Abdelkarim EM. Effect of electrical muscle stimulation on prevention of ICU acquired muscle weakness and facilitating weaning from mechanical ventilation. Alexandria Journal of Medicine 2019. [DOI: 10.1016/j.ajme.2013.03.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Himori K, Tatebayashi D, Kanzaki K, Wada M, Westerblad H, Lanner JT, Yamada T. Neuromuscular electrical stimulation prevents skeletal muscle dysfunction in adjuvant-induced arthritis rat. PLoS One 2017. [PMID: 28636643 PMCID: PMC5479592 DOI: 10.1371/journal.pone.0179925] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Skeletal muscle weakness is a prominent feature in patients with rheumatoid arthritis (RA). In this study, we investigated whether neuromuscular electrical stimulation (NMES) training protects against skeletal muscle dysfunction in rats with adjuvant-induced arthritis (AIA). AIA was produced by intraarticular injection of complete Freund’s adjuvant into the knees of Wistar rats. For NMES training, dorsiflexor muscles were stimulated via a surface electrode (0.5 ms pulse, 50 Hz, 2 s on/4 s off). NMES training was performed every other day for three weeks and consisted of three sets produced at three min intervals. In each set, the electrical current was set to achieve 60% of the initial maximum isometric torque and the current was progressively increased to maintain this torque; stimulation was stopped when the 60% torque could no longer be maintained. After the intervention period, extensor digitorum longus (EDL) muscles were excised and used for physiological and biochemical analyses. There was a reduction in specific force production (i.e. force per cross-sectional area) in AIA EDL muscles, which was accompanied by aggregation of the myofibrillar proteins actin and desmin. Moreover, the protein expressions of the pro-oxidative enzymes NADPH oxidase, neuronal nitric oxide synthase, p62, and the ratio of the autophagosome marker LC3bII/LC3bI were increased in AIA EDL muscles. NMES training prevented all these AIA-induced alterations. The present data suggest that NMES training prevents AIA-induced skeletal muscle weakness presumably by counteracting the formation of actin and desmin aggregates. Thus, NMES training can be an effective treatment for muscle dysfunction in patients with RA.
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Affiliation(s)
- Koichi Himori
- Graduate School of Health Sciences, Sapporo Medical University, Sapporo, Japan
| | - Daisuke Tatebayashi
- Graduate School of Health Sciences, Sapporo Medical University, Sapporo, Japan
| | - Keita Kanzaki
- Faculty of Health and Welfare Science, Okayama Prefectural University, Soja, Okayama, Japan
| | - Masanobu Wada
- Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi Hiroshima, Japan
| | - Håkan Westerblad
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Johanna T. Lanner
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Takashi Yamada
- Graduate School of Health Sciences, Sapporo Medical University, Sapporo, Japan
- * E-mail:
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Strobel NA, Matsumoto A, Peake JM, Marsh SA, Peternelj TT, Briskey D, Fassett RG, Coombes JS, Wadley GD. Altering the redox state of skeletal muscle by glutathione depletion increases the exercise-activation of PGC-1α. Physiol Rep 2014; 2:2/12/e12224. [PMID: 25538148 PMCID: PMC4332207 DOI: 10.14814/phy2.12224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
We investigated the relationship between markers of mitochondrial biogenesis, cell signaling, and antioxidant enzymes by depleting skeletal muscle glutathione with diethyl maleate (DEM) which resulted in a demonstrable increase in oxidative stress during exercise. Animals were divided into six groups: (1) sedentary control rats; (2) sedentary rats + DEM; (3) exercise control rats euthanized immediately after exercise; (4) exercise rats + DEM; (5) exercise control rats euthanized 4 h after exercise; and (6) exercise rats + DEM euthanized 4 h after exercise. Exercising animals ran on the treadmill at a 10% gradient at 20 m/min for the first 30 min. The speed was then increased every 10 min by 1.6 m/min until exhaustion. There was a reduction in total glutathione in the skeletal muscle of DEM treated animals compared to the control animals (P < 0.05). Within the control group, total glutathione was higher in the sedentary group compared to after exercise (P < 0.05). DEM treatment also significantly increased oxidative stress, as measured by increased plasma F2–isoprostanes (P < 0.05). Exercising animals given DEM showed a significantly greater increase in peroxisome proliferator activated receptor γ coactivator‐1α (PGC–1α) mRNA compared to the control animals that were exercised (P < 0.05). This study provides novel evidence that by lowering the endogenous antioxidant glutathione in skeletal muscle and inducing oxidative stress through exercise, PGC‐1α gene expression was augmented. These findings further highlight the important role of exercise induced oxidative stress in the regulation of mitochondrial biogenesis. A number of studies have attempted to elucidate mechanisms for the role of exercise‐induced reactive oxygen species in cell signalling and mitochondrial biogenesis including inhibiting reactive oxygen species production, either by enzymatic inhibitors such as the treatment of allopurinol, or through antioxidant supplementation. Our study is the first to investigate the relationship among mitochondrial biogenesis, cell signalling, and antioxidant enzymes by depleting skeletal muscle glutathione with diethyl maleate (DEM) which resulted in a demonstrable increase in oxidative stress during exercise. The major outcome of our study was that by reducing endogenous antioxidant glutathione content, there was impaired capacity for skeletal muscle to neutralize oxidative stress during exercise, resulting in greater PGC‐1α gene expression.
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Affiliation(s)
- Natalie A Strobel
- Exercise and Oxidative Stress Research Group, School of Human Movement Studies, The University of Queensland, St. Lucia, Queensland, Australia
| | - Aya Matsumoto
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Jonathan M Peake
- School of Biomedical Sciences and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Susan A Marsh
- College of Pharmacy, Washington State University, Spokane, Washington, USA
| | - Tina-Tinkara Peternelj
- Exercise and Oxidative Stress Research Group, School of Human Movement Studies, The University of Queensland, St. Lucia, Queensland, Australia
| | - David Briskey
- Exercise and Oxidative Stress Research Group, School of Human Movement Studies, The University of Queensland, St. Lucia, Queensland, Australia School of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Robert G Fassett
- Exercise and Oxidative Stress Research Group, School of Human Movement Studies, The University of Queensland, St. Lucia, Queensland, Australia
| | - Jeff S Coombes
- Exercise and Oxidative Stress Research Group, School of Human Movement Studies, The University of Queensland, St. Lucia, Queensland, Australia
| | - Glenn D Wadley
- Department of Physiology, The University of Melbourne, Parkville, Victoria, Australia Centre for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
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Zhao H, Liu J, Pan S, Sun Y, Li Q, Li F, Ma L, Guo Q. SOD mRNA and MDA expression in rectus femoris muscle of rats with different eccentric exercise programs and time points. PLoS One 2013; 8:e73634. [PMID: 24058480 PMCID: PMC3772806 DOI: 10.1371/journal.pone.0073634] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 07/30/2013] [Indexed: 01/28/2023] Open
Abstract
Purpose Although superoxide dismutase (SOD) and malondialdehyde (MDA) affect Delayed Onset Muscle Soreness (DOMS), their effects are unclear in rectus femoris muscles (RFM) of rats with different eccentric exercise programs and time points. The purpose of this study is to investigate the effects of the various eccentric exercise programs at different time points on the SOD mRNA expression and MDA using rat as the animal model. Methods 248 male rats were randomly divided into 4 groups: control group (CTL, n = 8), once-only exercise group (OEG, n = 80), continuous exercise group (CEG, n = 80), and intermittent exercise group (IEG, n = 80). Each exercise group was divided into 10 subgroups that exercised 0.5 h, 6 h, 12 h, 24 h, 48 h, 72 h, 96 h, 120 h, 144 h, or 168 h. Rats were sacrificed and their SOD mRNA expression, and MDA concentrations of skeletal muscle tissue were measured. Results The specimen in all eccentric exercise programs showed increased RFM SOD1 mRNA expression levels at 0.5 h (P<0.05), and decreased RFM SOD3 mRNA expression at 0.5 h (P<0.05). The continuous eccentric exercise (CE) significantly enhanced muscle SOD2 mRNA level at 0.5 h (P<0.05). After once-only eccentric exercise (OE), SOD1, SOD2, and SOD3 mRNA expression significantly increased at 96 h, whereas MDA concentrations decreased at 96 h. After CE, the correlation coefficients of SOD1, SOD2, SOD3 mRNA expression levels and MDA concentrations were −0.814, −0.763, −0.845 (all P<0.05) at 12 h. Conclusion Regular eccentric exercise, especially CE could enhance SOD1 and SOD2 mRNA expression in acute stage and the SOD2 mRNA expression correlates to MDA concentration in vivo, which may improve the oxidative adaption ability of skeletal muscles.
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Affiliation(s)
- Heng Zhao
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jiani Liu
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shinong Pan
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
- * E-mail:
| | - Yingwei Sun
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qi Li
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Fei Li
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Li Ma
- Central Laboratory, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qiyong Guo
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
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Aguer C, Fiehn O, Seifert EL, Bézaire V, Meissen JK, Daniels A, Scott K, Renaud JM, Padilla M, Bickel DR, Dysart M, Adams SH, Harper ME. Muscle uncoupling protein 3 overexpression mimics endurance training and reduces circulating biomarkers of incomplete β-oxidation. FASEB J 2013; 27:4213-25. [PMID: 23825224 DOI: 10.1096/fj.13-234302] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Exercise substantially improves metabolic health, making the elicited mechanisms important targets for novel therapeutic strategies. Uncoupling protein 3 (UCP3) is a mitochondrial inner membrane protein highly selectively expressed in skeletal muscle. Here we report that moderate UCP3 overexpression (roughly 3-fold) in muscles of UCP3 transgenic (UCP3 Tg) mice acts as an exercise mimetic in many ways. UCP3 overexpression increased spontaneous activity (∼40%) and energy expenditure (∼5-10%) and decreased oxidative stress (∼15-20%), similar to exercise training in wild-type (WT) mice. The increase in complete fatty acid oxidation (FAO; ∼30% for WT and ∼70% for UCP3 Tg) and energy expenditure (∼8% for WT and 15% for UCP3 Tg) in response to endurance training was higher in UCP3 Tg than in WT mice, showing an additive effect of UCP3 and endurance training on these two parameters. Moreover, increases in circulating short-chain acylcarnitines in response to acute exercise in untrained WT mice were absent with training or in UCP3 Tg mice. UCP3 overexpression had the same effect as training in decreasing long-chain acylcarnitines. Outcomes coincided with a reduction in muscle carnitine acetyltransferase activity that catalyzes the formation of acylcarnitines. Overall, results are consistent with the conclusions that circulating acylcarnitines could be used as a marker of incomplete muscle FAO and that UCP3 is a potential target for the treatment of prevalent metabolic diseases in which muscle FAO is affected.
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Affiliation(s)
- Céline Aguer
- 2M.-E.H., Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Rd., Ottawa, ON K1H 8M5, Canada.
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Xiao W, Chen P, Wang R, Dong J. Overload training inhibits phagocytosis and ROS generation of peritoneal macrophages: role of IGF-1 and MGF. Eur J Appl Physiol 2013; 113:117-25. [DOI: 10.1007/s00421-012-2418-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 05/02/2012] [Indexed: 01/08/2023]
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Karatzanos E, Gerovasili V, Zervakis D, Tripodaki ES, Apostolou K, Vasileiadis I, Papadopoulos E, Mitsiou G, Tsimpouki D, Routsi C, Nanas S. Electrical muscle stimulation: an effective form of exercise and early mobilization to preserve muscle strength in critically ill patients. Crit Care Res Pract 2012; 2012:432752. [PMID: 22545212 DOI: 10.1155/2012/432752] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 01/10/2012] [Accepted: 01/24/2012] [Indexed: 11/17/2022] Open
Abstract
Purpose. This is a secondary analysis of previously published data to investigate the effects of electrical muscle stimulation (EMS) on strength of various muscle groups in critically ill patients. Methods. One hundred forty-two consecutive patients, with APACHE II score ≥ 13, were randomly assigned to the EMS or the control group. EMS sessions were applied daily on vastus lateralis, vastus medialis, and peroneus longus of both lower extremities. Various muscle groups were evaluated with the Medical Research Council (MRC) scale for muscle strength. Handgrip strength assessment was also employed. Results. Twenty four patients in the EMS group and 28 patients in the control group were finally evaluated. EMS patients achieved higher MRC scores than controls (P ≤ 0.05) in wrist flexion, hip flexion, knee extension, and ankle dorsiflexion. Collectively, the EMS group performed higher (P < 0.01) in the legs and overall. Handgrip strength correlated (P ≤ 0.01) with the upper and lower extremities' muscle strength and the overall MRC scores. Conclusions. EMS has beneficial effects on the strength of critically ill patients mainly affecting muscle groups stimulated, while it may also affect muscle groups not involved presenting itself as a potential effective means of muscle strength preservation and early mobilization in this patient population.
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DAUSSIN FRÉDÉRICN, RASSENEUR LAURENCE, BOUITBIR JAMAL, CHARLES ANNELAURE, DUFOUR STÉPHANEP, GENY BERNARD, BURELLE YAN, RICHARD RUDDY. Different Timing of Changes in Mitochondrial Functions following Endurance Training. Med Sci Sports Exerc 2012; 44:217-24. [DOI: 10.1249/mss.0b013e31822b0bd4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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de Araujo GG, Papoti M, dos Reis IGM, de Mello MAR, Gobatto CA. Physiological responses during linear periodized training in rats. Eur J Appl Physiol 2012; 112:839-52. [DOI: 10.1007/s00421-011-2020-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Accepted: 05/21/2011] [Indexed: 11/30/2022]
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Werner C, Natter R, Wicke M. Changes of the activities of glycolytic and oxidative enzymes before and after slaughter in the longissimus muscle of Pietrain and Duroc pigs and a Duroc-Pietrain crossbreed1. J Anim Sci 2010; 88:4016-25. [DOI: 10.2527/jas.2010-3136] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ogihara CA, Schoorlemmer GHM, Levada AC, Pithon-Curi TC, Curi R, Lopes OU, Colombari E, Sato MA. Exercise changes regional vascular control by commissural NTS in spontaneously hypertensive rats. Am J Physiol Regul Integr Comp Physiol 2010; 299:R291-7. [DOI: 10.1152/ajpregu.00055.2009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inhibition of the commissural nucleus of the solitary tract (commNTS) induces a fall in sympathetic nerve activity and blood pressure in spontaneously hypertensive rats (SHR), which suggests that this subnucleus of the NTS is a source of sympathoexcitation. Exercise training reduces sympathetic activity and arterial pressure. The purpose of the present study was to investigate whether the swimming exercise can modify the regional vascular responses evoked by inhibition of the commNTS neurons in SHR and normotensive Wistar-Kyoto (WKY) rats. Exercise consisted of swimming, 1 h/day, 5 days/wk for 6 wks, with a load of 2% of the body weight. The day after the last exercise session, the rats were anesthetized with intravenous α-chloralose, tracheostomized, and artificially ventilated. The femoral artery was cannulated for mean arterial pressure (MAP) and heart rate recordings, and Doppler flow probes were placed around the lower abdominal aorta and superior mesenteric artery. Microinjection of 50 mM GABA into the commNTS caused similar reductions in MAP in swimming and sedentary SHR (−25 ± 6 and −30 ± 5 mmHg, respectively), but hindlimb vascular conductance increased twofold in exercised vs. sedentary SHR (54 ± 8 vs. 24 ± 5%). GABA into the commNTS caused smaller reductions in MAP in swimming and sedentary WKY rats (−20 ± 4 and −16 ± 2 mmHg). Hindlimb conductance increased fourfold in exercised vs. sedentary WKY rats (75 ± 2% vs. 19 ± 3%). Therefore, our data suggest that the swimming exercise induced changes in commNTS neurons, as shown by a greater enhancement of hindlimb vasodilatation in WKY vs. SHR rats in response to GABAergic inhibition of these neurons.
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Affiliation(s)
| | | | - Adriana C. Levada
- Department of Physiology, Biomedical Sciences Institute–University of Sao Paulo, Sao Paulo, Brazil; and
| | - Tania C. Pithon-Curi
- Department of Physiology, Biomedical Sciences Institute–University of Sao Paulo, Sao Paulo, Brazil; and
| | - Rui Curi
- Department of Physiology, Biomedical Sciences Institute–University of Sao Paulo, Sao Paulo, Brazil; and
| | | | - Eduardo Colombari
- Department of Physiology, Federal University of Sao Paulo, Sao Paulo, Brazil
- Faculdade de Medicina do ABC, Santo Andre, Brazil
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Routsi C, Gerovasili V, Vasileiadis I, Karatzanos E, Pitsolis T, Tripodaki E, Markaki V, Zervakis D, Nanas S. Electrical muscle stimulation prevents critical illness polyneuromyopathy: a randomized parallel intervention trial. Crit Care 2010; 14:R74. [PMID: 20426834 PMCID: PMC2887197 DOI: 10.1186/cc8987] [Citation(s) in RCA: 179] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2009] [Revised: 02/22/2010] [Accepted: 04/28/2010] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION Critical illness polyneuromyopathy (CIPNM) is a common complication of critical illness presenting with muscle weakness and is associated with increased duration of mechanical ventilation and weaning period. No preventive tool and no specific treatment have been proposed so far for CIPNM. Electrical muscle stimulation (EMS) has been shown to be beneficial in patients with severe chronic heart failure and chronic obstructive pulmonary disease. Aim of our study was to assess the efficacy of EMS in preventing CIPNM in critically ill patients. METHODS One hundred and forty consecutive critically ill patients with an APACHE II score >or= 13 were randomly assigned after stratification to the EMS group (n = 68) (age:61 +/- 19 years) (APACHE II:18 +/- 4, SOFA:9 +/- 3) or to the control group (n = 72) (age:58 +/- 18 years) (APACHE II:18 +/- 5, SOFA:9 +/- 3). Patients of the EMS group received daily EMS sessions. CIPNM was diagnosed clinically with the medical research council (MRC) scale for muscle strength (maximum score 60, <48/60 cut off for diagnosis) by two unblinded independent investigators. Duration of weaning from mechanical ventilation and intensive care unit (ICU) stay were recorded. RESULTS Fifty two patients could be finally evaluated with MRC; 24 in the EMS group and 28 in the control group. CIPNM was diagnosed in 3 patients in the EMS group as compared to 11 patients in the control group (OR = 0.22; CI: 0.05 to 0.92, P = 0.04). The MRC score was significantly higher in patients of the EMS group as compared to the control group [58 (33 to 60) vs. 52 (2 to 60) respectively, median (range), P = 0.04). The weaning period was statistically significantly shorter in patients of the EMS group vs. the control group [1 (0 to 10) days vs. 3 (0 to 44) days, respectively, median (range), P = 0.003]. CONCLUSIONS This study suggests that daily EMS sessions prevent the development of CIPNM in critically ill patients and also result in shorter duration of weaning. Further studies should evaluate which patients benefit more from EMS and explore the EMS characteristics most appropriate for preventing CIPNM. TRIAL REGISTRATION NUMBER ClinicalTrials.gov NCT00882830.
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Affiliation(s)
- Christina Routsi
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Vasiliki Gerovasili
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Ioannis Vasileiadis
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Eleftherios Karatzanos
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Theodore Pitsolis
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Elli Tripodaki
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Vasiliki Markaki
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Dimitrios Zervakis
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
| | - Serafim Nanas
- First Critical Care Department, National and Kapodistrian University of Athens Evangelismos Hospital, Ypsilantou 45-47, 106 75, Athens, Greece
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Pimenta A, Gorjão R, Silveira LR, Curi R. Changes of gene expression in electrically stimulated and contralateral rat soleus muscles. Muscle Nerve 2009; 40:838-46. [PMID: 19722257 DOI: 10.1002/mus.21360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this study we investigate the effect of a single session of high-intensity contractions on expression of pleiotropic genes and, in particular, those genes associated with metabolism in soleus muscle from electrically stimulated (ES) and contralateral (CL) limbs. The right limbs of male Wistar rats were submitted to contractions by 200-ms trains of electrical stimulation at 100-HZ frequency with pulses of 0.1 ms (voltage 24 +/- 3 V) delivered each second for 1 hour. Soleus muscles were isolated 1 hour after contraction, and gene expression was analyzed by a macroarray technique (Atlas Toxicology 1.2 Array; Clontech Laboratories). Electrical stimulation increased expression in 92 genes (16% of the genes present in the membrane). Sixty-six genes were upregulated in both ES and CL soleus muscles, and expression of 26 genes was upregulated in the ES muscle only. The most altered genes were those related to stress response and metabolism. Electrical stimulation also raised expression of transcription factors, translation and posttranslational modification of proteins, ribosomal proteins, and intracellular transducers/effectors/modulators. The results indicate that a single session of electrical stimulation upregulated expression of genes related to metabolism and oxidative stress in soleus muscle from both ES and CL limbs. These findings may indicate an association with tissue hypertrophy and metabolic adaptations induced by physical exercise training not only in the ES but also in the CL non-stimulated muscle, suggesting a cross-education phenomenon.
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Affiliation(s)
- Aurélio Pimenta
- National Institute of Obesity and Diabetes/Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Avenida Prof. Lineu Prestes 1524, 05508-900, Butantã, São Paulo, SP, Brazil
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Kwasiborski A, Rocha D, Terlouw C. Gene expression in Large White or Duroc-sired female and castrated male pigs and relationships with pork quality. Anim Genet 2009; 40:852-62. [DOI: 10.1111/j.1365-2052.2009.01925.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gerovasili V, Tripodaki E, Karatzanos E, Pitsolis T, Markaki V, Zervakis D, Routsi C, Roussos C, Nanas S. Short-term systemic effect of electrical muscle stimulation in critically ill patients. Chest 2009; 136:1249-1256. [PMID: 19710290 DOI: 10.1378/chest.08-2888] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Our study assessed the short-term effect of electrical muscle stimulation (EMS) of the lower extremities on the thenar muscle microcirculation of patients who are critically ill. METHODS Twenty-nine hospital ICU patients (19 men; mean [+/- SD] age, 58 +/- 19 years; mean acute physiology and chronic health evaluation score, 17 +/- 5; mean sequential organ failure assessment score, 9 +/- 3) underwent a 45-min session of EMS of the lower extremities. BP and heart rate were measured, and blood samples were retrieved. Tissue oxygen saturation (Sto(2)) was assessed with near infrared spectroscopy at the thenar muscle with a vascular occlusion before and after EMS. A control group of six patients who were critically ill (4 men; mean age, 50 +/- 19 years) also were included in the study. RESULTS The mean Sto(2) did not differ significantly before and after the EMS session (81 +/- 16% vs 83 +/- 16%, respectively). The oxygen consumption rate during vascular occlusion differed significantly before the beginning and at the end of the session (20 +/- 9%/min vs 22 +/- 9%/min, respectively; p < 0.05). The reperfusion rate differed significantly before the beginning and at the end of the session (299 +/- 177%/min vs 375 +/- 182%/min, respectively; p < 0.05). Heart rate increased significantly at the end of the session (94 +/- 16 beats/min vs 99 +/- 16 beats/min, respectively; p < 0.05) as did systolic BP (127 +/- 21 mm Hg vs 133 +/- 23 mm Hg; p < 0.05, respectively). The Sto(2) value did not differ between the two measurements in control patients. CONCLUSION The data suggest that EMS has a systemic effect on microcirculation. These results suggest that further studies are needed to explore the potential use of EMS as a preventive and rehabilitation tool in critically ill patients.
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Affiliation(s)
- Vasiliki Gerovasili
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Elli Tripodaki
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleftherios Karatzanos
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Theodore Pitsolis
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Vasiliki Markaki
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Zervakis
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Christina Routsi
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Charis Roussos
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Serafim Nanas
- First Critical Care Department, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece.
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Moien-Afshari F, Ghosh S, Elmi S, Khazaei M, Rahman MM, Sallam N, Laher I. Exercise restores coronary vascular function independent of myogenic tone or hyperglycemic status in db/db mice. Am J Physiol Heart Circ Physiol 2008; 295:H1470-80. [PMID: 18641279 DOI: 10.1152/ajpheart.00016.2008] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Regulation of coronary function in diabetic hearts is an important component in preventing ischemic cardiac events but remains poorly studied. Exercise is recommended in the management of diabetes, but its effects on diabetic coronary function are relatively unknown. We investigated coronary artery myogenic tone and endothelial function, essential elements in maintaining vascular fluid dynamics in the myocardium. We hypothesized that exercise reduces pressure-induced myogenic constriction of coronary arteries while improving endothelial function in db/db mice, a model of type 2 diabetes. We used pressurized mouse coronary arteries isolated from hearts of control and db/db mice that were sedentary or exercised for 1 h/day on a motorized exercise-wheel system (set at 5.2 m/day, 5 days/wk). Exercise caused a approximately 10% weight loss in db/db mice and decreased whole body oxidative stress, as measured by plasma 8-isoprostane levels, but failed to improve hyperglycemia or plasma insulin levels. Exercise did not alter myogenic regulation of arterial diameter stimulated by increased transmural pressure, nor did it alter smooth muscle responses to U-46619 (a thromboxane agonist) or sodium nitroprusside (an endothelium-independent dilator). Moderate levels of exercise restored ACh-simulated, endothelium-dependent coronary artery vasodilation in db/db mice and increased expression of Mn SOD and decreased nitrotyrosine levels in hearts of db/db mice. We conclude that the vascular benefits of moderate levels of exercise were independent of changes in myogenic tone or hyperglycemic status and primarily involved increased nitric oxide bioavailability in the coronary microcirculation.
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Affiliation(s)
- Farzad Moien-Afshari
- Department of Pharmacology and Therapeutics, Faculty of Medicine,University of British Columbia, Vancouver, British Columbia, Canada
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