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Sergeeva XV, Lvova ID, Sharlo KA. Disuse-Induced Muscle Fatigue: Facts and Assumptions. Int J Mol Sci 2024; 25:4984. [PMID: 38732203 PMCID: PMC11084575 DOI: 10.3390/ijms25094984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
Skeletal muscle unloading occurs during a wide range of conditions, from space flight to bed rest. The unloaded muscle undergoes negative functional changes, which include increased fatigue. The mechanisms of unloading-induced fatigue are far from complete understanding and cannot be explained by muscle atrophy only. In this review, we summarize the data concerning unloading-induced fatigue in different muscles and different unloading models and provide several potential mechanisms of unloading-induced fatigue based on recent experimental data. The unloading-induced changes leading to increased fatigue include both neurobiological and intramuscular processes. The development of intramuscular fatigue seems to be mainly contributed by the transformation of soleus muscle fibers from a fatigue-resistant, "oxidative" "slow" phenotype to a "fast" "glycolytic" one. This process includes slow-to-fast fiber-type shift and mitochondrial density decline, as well as the disruption of activating signaling interconnections between slow-type myosin expression and mitochondrial biogenesis. A vast pool of relevant literature suggests that these events are triggered by the inactivation of muscle fibers in the early stages of muscle unloading, leading to the accumulation of high-energy phosphates and calcium ions in the myoplasm, as well as NO decrease. Disturbance of these secondary messengers leads to structural changes in muscles that, in turn, cause increased fatigue.
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Affiliation(s)
| | | | - Kristina A. Sharlo
- Institute of Biomedical Problems, RAS, Khorosevskoye Shosse, 76a, 123007 Moscow, Russia; (X.V.S.); (I.D.L.)
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2
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Sergeeva KV, Tyganov SA, Zaripova KA, Bokov RO, Nikitina LV, Konstantinova TS, Kalamkarov GR, Shenkman BS. Mechanical and signaling responses of unloaded rat soleus muscle to chronically elevated β-myosin activity. Arch Biochem Biophys 2024; 754:109961. [PMID: 38492659 DOI: 10.1016/j.abb.2024.109961] [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: 10/26/2023] [Revised: 02/26/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
It has been reported that muscle functional unloading is accompanied by an increase in motoneuronal excitability despite the elimination of afferent input. Thus, we hypothesized that pharmacological potentiation of spontaneous contractile soleus muscle activity during hindlimb unloading could activate anabolic signaling pathways and prevent the loss of muscle mass and strength. To investigate these aspects and underlying molecular mechanisms, we used β-myosin allosteric effector Omecamtiv Mekarbil (OM). We found that OM partially prevented the loss of isometric strength and intrinsic stiffness of the soleus muscle after two weeks of disuse. Notably, OM was able to attenuate the unloading-induced decrease in the rate of muscle protein synthesis (MPS). At the same time, the use of drug neither prevented the reduction in the markers of translational capacity (18S and 28S rRNA) nor activation of the ubiquitin-proteosomal system, which is evidenced by a decrease in the cross-sectional area of fast and slow muscle fibers. These results suggest that chemically-induced increase in low-intensity spontaneous contractions of the soleus muscle during functional unloading creates prerequisites for protein synthesis. At the same time, it should be assumed that the use of OM is advisable with pharmacological drugs that inhibit the expression of ubiquitin ligases.
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Affiliation(s)
- K V Sergeeva
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia.
| | - S A Tyganov
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - K A Zaripova
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - R O Bokov
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - L V Nikitina
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - T S Konstantinova
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - G R Kalamkarov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - B S Shenkman
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
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3
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Sharlo KA, Vilchinskaya NA, Tyganov SA, Turtikova OV, Lvova ID, Sergeeva KV, Rukavishnikov IV, Shenkman BS, Tomilovskaya ES, Orlov OI. Six-day dry immersion leads to downregulation of slow-fiber type and mitochondria-related genes expression. Am J Physiol Endocrinol Metab 2023; 325:E734-E743. [PMID: 37938180 DOI: 10.1152/ajpendo.00284.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/02/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023]
Abstract
The soleus muscle in humans is responsible for maintaining an upright posture and participating in walking and running. Under muscle disuse, it undergoes molecular signaling changes that result in altered force and work capacity. The triggering mechanisms and pathways of these changes are not yet fully understood. In this article, we aimed to detect the molecular pathways that are involved in the unloading-induced alterations in the human soleus muscle under 6-days of dry immersion. A 6-day dry immersion led to the downregulation of mitochondrial biogenesis and dynamics markers, upregulation of calcium-dependent CaMK II phosphorylation, enhanced PGC1α promoter region methylation, and altered muscle micro-RNA expression, without affecting p-AMPK content or fiber-type transformation.NEW & NOTEWORTHY Dry immersion dysregulates mitochondrial genes expression, affects mi-RNA expression and PGC1 promoter methylation.
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Affiliation(s)
- Kristina A Sharlo
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | | | - Sergey A Tyganov
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Olga V Turtikova
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Irina D Lvova
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Ksenia V Sergeeva
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Ilya V Rukavishnikov
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Boris S Shenkman
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Elena S Tomilovskaya
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Oleg I Orlov
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
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4
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Nosikova I, Riabova A, Kitov V, Tomilovskaya E. Corticospinal excitability after 5-day Dry Immersion in women. Front Neural Circuits 2023; 17:1163346. [PMID: 37811482 PMCID: PMC10556517 DOI: 10.3389/fncir.2023.1163346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
In light of the development of manned astronautics and the increasing participation of women in space flights, the question of female body adaptation to microgravity conditions becomes relevant. Currently, one of the important directions in this issue is to study the effects of support withdrawal as a factor of weightlessness on the human sensorimotor system. Dry Immersion is one of the well-known ground-based models, which adequately reproduces the main physiological effects of space flight. The aim of this study was to evaluate the changes in motor evoked potentials of the lower leg gravity-dependent muscles in women after a 5-day Dry Immersion. We analyzed evoked responses to transcranial and trans-spinal magnetic stimulation. In this method, areas of interest (the motor cortex and lumbosacral thickening of the spinal cord) are stimulated with an electromagnetic stimulus. The experiment was conducted with the participation of 16 healthy female volunteers with a natural menstrual cycle. The thresholds, amplitudes, and latencies of motor potentials evoked by magnetic stimulation were assessed. We showed that 5-day exposure to support withdrawal leads to a decrease in motor-evoked potential thresholds and central motor conduction time, although changes in motor response amplitudes were ambiguous. The data obtained correspond to the results of previous research on Dry Immersion effects on the sensorimotor system in men.
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Affiliation(s)
- Inna Nosikova
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Alexandra Riabova
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Vladimir Kitov
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Elena Tomilovskaya
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
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5
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Malaya CA, Parikh PJ, Smith DL, Riaz A, Chandrasekaran S, Layne CS. Effects of simulated hypo-gravity on lower limb kinematic and electromyographic variables during anti-gravitational treadmill walking. Front Physiol 2023; 14:1141015. [PMID: 37362436 PMCID: PMC10285399 DOI: 10.3389/fphys.2023.1141015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Introduction: This study investigated kinematic and EMG changes in gait across simulated gravitational unloading levels between 100% and 20% of normal body weight. This study sought to identify if each level of unloading elicited consistent changes-particular to that percentage of normal body weight-or if the changes seen with unloading could be influenced by the previous level(s) of unloading. Methods: 15 healthy adult participants (26.3 ± 2.5 years; 53% female) walked in an Alter-G anti-gravity treadmill unloading system (mean speed: 1.49 ± 0.37 mph) for 1 min each at 100%, 80%, 60%, 40% and 20% of normal body weight, before loading back to 100% in reverse order. Lower-body kinematic data were captured by inertial measurement units, and EMG data were collected from the rectus femoris, biceps femoris, medial gastrocnemius, and anterior tibialis. Data were compared across like levels of load using repeated measures ANOVA and statistical parametric mapping. Difference waveforms for adjacent levels were created to examine the rate of change between different unloading levels. Results: This study found hip, knee, and ankle kinematics as well as activity in the rectus femoris, and medial gastrocnemius were significantly different at the same level of unloading, having arrived from a higher, or lower level of unloading. There were no significant changes in the kinematic difference waveforms, however the waveform representing the change in EMG between 100% and 80% load was significantly different from all other levels. Discussion: This study found that body weight unloading from 100% to 20% elicited distinct responses in the medial gastrocnemius, as well as partly in the rectus femoris. Hip, knee, and ankle kinematics were also affected differentially by loading and unloading, especially at 40% of normal body weight. These findings suggest the previous level of gravitational load is an important factor to consider in determining kinematic and EMG responses to the current level during loading and unloading below standard g. Similarly, the rate of change in kinematics from 100% to 20% appears to be linear, while the rate of change in EMG was non-linear. This is of particular interest, as it suggests that kinematic and EMG measures decouple with unloading and may react to unloading uniquely.
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Affiliation(s)
- Christopher A. Malaya
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston, Houston, TX, United States
- Grail Laboratory, Parker University, Dallas, TX, United States
| | - Pranav J. Parikh
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston, Houston, TX, United States
| | - Dean L. Smith
- Nutrition and Health, Department of Kinesiology, Miami University, Oxford, OH, United States
| | - Arshia Riaz
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston, Houston, TX, United States
| | - Subhalakshmi Chandrasekaran
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston, Houston, TX, United States
| | - Charles S. Layne
- Center for Neuromotor and Biomechanics Research, Department of Health and Human Performance, University of Houston, Houston, TX, United States
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Saveko A, Bekreneva M, Ponomarev I, Zelenskaya I, Riabova A, Shigueva T, Kitov V, Abu Sheli N, Nosikova I, Rukavishnikov I, Sayenko D, Tomilovskaya E. Impact of different ground-based microgravity models on human sensorimotor system. Front Physiol 2023; 14:1085545. [PMID: 36875039 PMCID: PMC9974674 DOI: 10.3389/fphys.2023.1085545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/30/2023] [Indexed: 02/17/2023] Open
Abstract
This review includes current and updated information about various ground-based microgravity models and their impact on the human sensorimotor system. All known models of microgravity are imperfect in a simulation of the physiological effects of microgravity but have their advantages and disadvantages. This review points out that understanding the role of gravity in motion control requires consideration of data from different environments and in various contexts. The compiled information can be helpful to researchers to effectively plan experiments using ground-based models of the effects of space flight, depending on the problem posed.
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Affiliation(s)
- Alina Saveko
- Russian Federation State Scientific Center—Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
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Metformin Attenuates Slow-to-Fast Fiber Shift and Proteolysis Markers Increase in Rat Soleus after 7 Days of Rat Hindlimb Unloading. Int J Mol Sci 2022; 24:ijms24010503. [PMID: 36613942 PMCID: PMC9820761 DOI: 10.3390/ijms24010503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Muscle unloading leads to signaling alterations that cause muscle atrophy and weakness. The cellular energy sensor AMPK can regulate myofiber-type shift, calcium-dependent signaling and ubiquitin-proteasome system markers. We hypothesized that the prevention of p-AMPK downregulation during the first week of muscle unloading would impede atrophy development and the slow-to-fast shift of soleus muscle fibers, and the aim of the study was to test this hypothesis. Thirty-two male Wistar rats were randomly assigned to four groups: placebo control (C), control rats treated with metformin (C + M), 7 days of hindlimb suspension (HS) + placebo (7HS), and 7 days of HS + metformin administration (7HS + M). In the soleus of the 7HS rats, we detected a slow-to-fast fiber-type shift as well as a significant downregulation of MEF-2D and p300 in the nuclei. In the 7HS group, we also found decreases in p-ACC (AMPK target) protein level and in the expression of E3 ubiquitin ligases and p-CaMK II protein level vs. the C group. The 7-day metformin treatment for soleus muscle unloading (1) prevented slow-to-fast fiber-type shift; (2) counteracted changes in the p-ACC protein level; (3) hindered changes in the nuclear protein level of the slow myosin expression activators MEF-2D and p300, but did not affect NFATc1 signaling; and (4) attenuated the unloading-induced upregulation of MuRF-1, atrogin-1, ubiquitin and myostatin mRNA expression, but did not prevent soleus muscle atrophy. Thus, metformin treatment during muscle disuse could be useful to prevent the decrease in the percentage of slow-type fatigue-resistant muscle fibers.
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Striated Muscle Evaluation Based on Velocity and Amortization Ratio of Mechanical Impulse Propagation in Simulated Microgravity Environment. BIOLOGY 2022; 11:biology11111677. [DOI: 10.3390/biology11111677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022]
Abstract
Long-duration space flight missions impose extreme physiological stress and/or changes, such as musculoskeletal function degradation, on the crew due to the microgravity exposure. A great deal of research studies have been conducted in order to understand these physiological stress influences and to provide countermeasures to minimize the observed negative effects of weightlessness exposure on musculoskeletal function. Among others, studies and experiments have been conducted in DI analogue Earth-based facilities in order to reproduce the weightlessness negative effects on the human body. This paper presents a complex muscular analysis of mechanical wave propagation in striated muscle, using MusTone, a device developed in-house at the Institute of Space Science, Romania. The data were collected during a 21-day DI campaign in order to investigate muscle fibers’ behavior in longitudinal direction, after applying a mechanical impulse, taking into account two particular parameters, namely propagation velocity and amortization ratio. The parameters were determined based on the wave-propagation data collected from five points (one impact point, two distal direction points, and two proximal direction points) along the muscle fiber. By statistically analyzing propagation velocity and amortization ratio parameters, the study revealed that muscle deconditioning is time dependent, the amortization ratio is more significant in the distal direction, and the lower fibers are affected the most.
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Tuulik VR, Kumm M, Tuulik V, Veraksitš A, Päll T. The therapeutic effect of Värska mud and Värska mineral water baths on the overuse pain and muscle tension syndromes in the working age population. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:2101-2110. [PMID: 33929672 DOI: 10.1007/s10653-021-00951-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
The effects of bath therapy are complex and result from a unique interaction between the aquatic environment and the human body functions. The effect of bath therapy depends on both water temperature and chemical additives (mineral substances and humic substances). Värska Resort Centre, in south-eastern Estonia, uses for the balneotherapy the local curative mud and mineral water. The aim of the study was to evaluate and compare the effects of Värska's local mud bath and mineral water bath on moderate musculoskeletal pains in working-age people. The study involved 64 working-age subjects: within two weeks, 32 of them received five general mineral water baths, and another 32 received five general curative mud baths. Pain was assessed with the Nordic Musculosceletal Questionnaire, and muscle tension was measured with a myotonometer in m. erector spinae and m. trapezius. Measurements were performed three times: before the start of the study, immediately after the last procedure, and 2-3 weeks after the last procedure. Both the Värska curative mud bath and the Värska mineral water bath showed a positive effect on musculoskeletal pain and muscle tension. Both procedures can be recommended as drug-free interventions for mild to moderate musculoskeletal pain syndrome and muscle tensions, in both prevention and treatment.
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Affiliation(s)
- Varje-Riin Tuulik
- The Centre of Excellence in Health Promotion and Rehabilitation, Lihula mnt 12, 90507, Haapsalu, Estonia
- West Tallinn Central Hospital, Paldiski mnt 68, 10617, Tallinn, Estonia
| | - Monika Kumm
- The Centre of Excellence in Health Promotion and Rehabilitation, Lihula mnt 12, 90507, Haapsalu, Estonia.
- Pärnu College, University of Tartu, Ringi 35, 80012, Pärnu, Estonia.
| | - Viiu Tuulik
- The Centre of Excellence in Health Promotion and Rehabilitation, Lihula mnt 12, 90507, Haapsalu, Estonia
| | - Alar Veraksitš
- Chair of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Taavi Päll
- Department of Microbiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
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Nemirovskaya TL, Sharlo KA. Roles of ATP and SERCA in the Regulation of Calcium Turnover in Unloaded Skeletal Muscles: Current View and Future Directions. Int J Mol Sci 2022; 23:ijms23136937. [PMID: 35805949 PMCID: PMC9267070 DOI: 10.3390/ijms23136937] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/20/2022] [Indexed: 11/16/2022] Open
Abstract
A decrease in skeletal muscle contractile activity or its complete cessation (muscle unloading or disuse) leads to muscle fibers’ atrophy and to alterations in muscle performance. These changes negatively affect the quality of life of people who, for one reason or another, are forced to face a limitation of physical activity. One of the key regulatory events leading to the muscle disuse-induced changes is an impairment of calcium homeostasis, which leads to the excessive accumulation of calcium ions in the sarcoplasm. This review aimed to analyze the triggering mechanisms of calcium homeostasis impairment (including those associated with the accumulation of high-energy phosphates) under various types of muscle unloading. Here we proposed a hypothesis about the regulatory mechanisms of SERCA and IP3 receptors activity during muscle unloading, and about the contribution of these mechanisms to the excessive calcium ion myoplasmic accumulation and gene transcription regulation via excitation–transcription coupling.
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Guilhot C, Fovet T, Delobel P, Dargegen M, Jasmin BJ, Brioche T, Chopard A, Py G. Severe Muscle Deconditioning Triggers Early Extracellular Matrix Remodeling and Resident Stem Cell Differentiation into Adipocytes in Healthy Men. Int J Mol Sci 2022; 23:ijms23105489. [PMID: 35628300 PMCID: PMC9143135 DOI: 10.3390/ijms23105489] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/03/2022] [Accepted: 05/12/2022] [Indexed: 02/04/2023] Open
Abstract
Besides the loss of muscle mass and strength, increased intermuscular adipose tissue (IMAT) is now a well-recognized consequence of muscle deconditioning as experienced in prolonged microgravity. IMAT content may alter the muscle stem cell microenvironment. We hypothesized that extracellular matrix structure alterations and microenvironment remodeling induced by fast and severe muscle disuse could modulate fibro-adipogenic progenitor fate and behavior. We used the dry immersion (DI) model that rapidly leads to severe muscle deconditioning due to drastic hypoactivity. We randomly assigned healthy volunteers (n = 18 men) to the control group (only DI, n = 9; age = 33.8 ± 4) or to the DI + thigh cuff group (n = 9; age = 33.4 ± 7). Participants remained immersed in the supine position in a thermo-neutral water bath for 5 days. We collected vastus lateralis biopsies before (baseline) and after DI. 5 days of DI are sufficient to reduce muscle mass significantly, as indicated by the decreased myofiber cross-sectional area in vastus lateralis samples (−18% vs. baseline, p < 0.05). Early and late adipogenic differentiation transcription factors protein levels were upregulated. Platelet-derived growth Factors alpha (PDGFR⍺) protein level and PDGFR⍺-positive cells were increased after 5 days of DI. Extracellular matrix structure was prone to remodeling with an altered ECM composition with 4 major collagens, fibronectin, and Connective Tissue Growth Factor mRNA decreases (p < 0.001 vs. baseline). Wearing thigh cuffs did not have any preventive effect on the measured variable. Our results show that altered extracellular matrix structure and signaling pathways occur early during DI, a severe muscle wasting model, favoring fibro-adipogenic progenitor differentiation into adipocytes.
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Affiliation(s)
- Corentin Guilhot
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
- Correspondence: (C.G.); (G.P.); Tel.: +33-499-612-222 (G.P.); Fax: +33-467-545-694 (G.P.)
| | - Théo Fovet
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
| | - Pierre Delobel
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
| | - Manon Dargegen
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
| | - Bernard J. Jasmin
- Department of Cellular and Molecular Medicine, Eric J. Poulin Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada;
| | - Thomas Brioche
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
| | - Angèle Chopard
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
| | - Guillaume Py
- DMEM, Montpellier University, Institut National de la Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2 Place Pierre Viala, Bat. 22, 34060 Montpellier, France; (T.F.); (P.D.); (M.D.); (T.B.); (A.C.)
- Correspondence: (C.G.); (G.P.); Tel.: +33-499-612-222 (G.P.); Fax: +33-467-545-694 (G.P.)
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12
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Bazanova OM, Kovaleva AV. Psychophysiological Indicators of Postural Control. Contribution of the Russian Scientific School. Part I. HUMAN PHYSIOLOGY 2022; 48:207-228. [PMID: 35462944 PMCID: PMC9017964 DOI: 10.1134/s0362119722020025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/20/2021] [Accepted: 07/29/2021] [Indexed: 11/23/2022]
Abstract
This article aimed to systematically review the published results of studies of psychophysiological mechanisms of posture maintenance and identify the key factors that influence the effectiveness of postural control. The recommendations of "Preferred Reporting Elements for Systematic Reviews and Meta-Analyzes" (PRISMA) were followed for the review. The results were classified, taking into account the target psychophysiological mechanisms and factors affecting postural control. The article presents the theoretical and empirical results of the Russian scientific school of research on the role of support afferentation in the sensorimotor mechanisms of cognitive and postural functions. Due to the limited number of randomized studies found, it was impossible to make meta-analytic comparisons, so the literature analysis was carried out only qualitatively. Meanwhile, our systematic review provides promising information about possible relationships between stabilometric and psychological indicators of postural control, which have theoretical significance and application in the correction and training of posture control. However, more thorough research is needed to overcome the methodological shortcomings that we have encountered in our qualitative analysis.
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Affiliation(s)
- O. M. Bazanova
- State Research Institute of Neuroscience & Medicine, Novosibirsk State University, Novosibirsk, Russia
| | - A. V. Kovaleva
- Anokhin Research Institute of Normal Physiology, Moscow, Russia
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Proshchina A, Gulimova V, Kharlamova A, Krivova Y, Barabanov V, Saveliev S. Cytoskeleton Markers in the Spinal Cord and Mechanoreceptors of Thick-Toed Geckos after Prolonged Space Flights. LIFE (BASEL, SWITZERLAND) 2022; 12:life12010100. [PMID: 35054493 PMCID: PMC8781937 DOI: 10.3390/life12010100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 11/18/2022]
Abstract
Spaceflight may cause hypogravitational motor syndrome (HMS). However, the role of the nervous system in the formation of HMS remains poorly understood. The aim of this study was to estimate the effects of space flights on the cytoskeleton of the neuronal and glial cells in the spinal cord and mechanoreceptors in the toes of thick-toed geckos (Chondrodactylus turneri GRAY, 1864). Thick-toed geckos are able to maintain attachment and natural locomotion in weightlessness. Different types of mechanoreceptors have been described in the toes of geckos. After flight, neurofilament 200 immunoreactivity in mechanoreceptors was lower than in control. In some motor neurons of flight geckos, nonspecific pathomorphological changes were observed, but they were also detected in the control. No signs of gliosis were detected after spaceflight. Cytoskeleton markers adequately reflect changes in the cells of the nervous system. We suggest that geckos’ adhesion is controlled by the nervous system. Our study revealed no significant disturbances in the morphology of the spinal cord after the prolonged space flight, supporting the hypothesis that geckos compensate the alterations, characteristic for other mammals in weightlessness, by tactile stimulation.
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Sharlo K, Tyganov SA, Tomilovskaya E, Popov DV, Saveko AA, Shenkman BS. Effects of Various Muscle Disuse States and Countermeasures on Muscle Molecular Signaling. Int J Mol Sci 2021; 23:ijms23010468. [PMID: 35008893 PMCID: PMC8745071 DOI: 10.3390/ijms23010468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/24/2021] [Accepted: 12/30/2021] [Indexed: 12/17/2022] Open
Abstract
Skeletal muscle is capable of changing its structural parameters, metabolic rate and functional characteristics within a wide range when adapting to various loading regimens and states of the organism. Prolonged muscle inactivation leads to serious negative consequences that affect the quality of life and work capacity of people. This review examines various conditions that lead to decreased levels of muscle loading and activity and describes the key molecular mechanisms of muscle responses to these conditions. It also details the theoretical foundations of various methods preventing adverse muscle changes caused by decreased motor activity and describes these methods. A number of recent studies presented in this review make it possible to determine the molecular basis of the countermeasure methods used in rehabilitation and space medicine for many years, as well as to identify promising new approaches to rehabilitation and to form a holistic understanding of the mechanisms of gravity force control over the muscular system.
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15
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Early Deconditioning of Human Skeletal Muscles and the Effects of a Thigh Cuff Countermeasure. Int J Mol Sci 2021; 22:ijms222112064. [PMID: 34769492 PMCID: PMC8584355 DOI: 10.3390/ijms222112064] [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: 09/06/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 01/12/2023] Open
Abstract
Muscle deconditioning is a major consequence of a wide range of conditions from spaceflight to a sedentary lifestyle, and occurs as a result of muscle inactivity, leading to a rapid decrease in muscle strength, mass, and oxidative capacity. The early changes that appear in the first days of inactivity must be studied to determine effective methods for the prevention of muscle deconditioning. To evaluate the mechanisms of muscle early changes and the vascular effect of a thigh cuff, a five-day dry immersion (DI) experiment was conducted by the French Space Agency at the MEDES Space Clinic (Rangueil, Toulouse). Eighteen healthy males were recruited and divided into a control group and a thigh cuff group, who wore a thigh cuff at 30 mmHg. All participants underwent five days of DI. Prior to and at the end of the DI, the lower limb maximal strength was measured and muscle biopsies were collected from the vastus lateralis muscle. Five days of DI resulted in muscle deconditioning in both groups. The maximal voluntary isometric contraction of knee extension decreased significantly. The muscle fiber cross-sectional area decreased significantly by 21.8%, and the protein balance seems to be impaired, as shown by the reduced activation of the mTOR pathway. Measurements of skinned muscle fibers supported these results and potential changes in oxidative capacity were highlighted by a decrease in PGC1-α levels. The use of the thigh cuff did not prevent muscle deconditioning or impact muscle function. These results suggest that the major effects of muscle deconditioning occur during the first few days of inactivity, and countermeasures against muscle deconditioning should target this time period. These results are also relevant for the understanding of muscle weakness induced by muscle diseases, aging, and patients in intensive care.
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Greaves D, Guillon L, Besnard S, Navasiolava N, Arbeille P. 4 Day in dry immersion reproduces partially the aging effect on the arteries as observed during 6 month spaceflight or confinement. NPJ Microgravity 2021; 7:43. [PMID: 34728651 PMCID: PMC8564509 DOI: 10.1038/s41526-021-00172-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 10/07/2021] [Indexed: 01/30/2023] Open
Abstract
The objectives of this study were to determine whether 4 days of dry immersion (DI) induced similar arterial aging as spaceflight and to test the impact of thigh cuffs. Eighteen subjects underwent DI; nine wore thigh cuffs. Cardiac and arterial targets were assessed by ultrasound. No significant differences were found between the groups. The left ventricle volume, stroke volume (SV), and ejection fraction decreased with DI (p < 0.001). Carotid distensibility reduced (p < 0.05), carotid to femoral arterial tree became stiffer in 33% of the subjects, and femoral artery intima media thickness increased (p < 0.05). A reduction in plasma volume is likely to have caused the observed cardiac changes, whereas the arterial wall changes are probably best explained by hypokinesia and/or environmental stress. These changes are similar but lower in amplitude than those observed in spaceflight and mimic the natural aging effect on earth. The daytime-worn thigh cuffs had no acute or chronic impact on these arterial-focused measurements.
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Affiliation(s)
- Danielle Greaves
- UMPS-CERCOM (Unite Medecine Physiologie spatiale) Faculte de Medecine, Tours, France
| | - Laurent Guillon
- UMPS-CERCOM (Unite Medecine Physiologie spatiale) Faculte de Medecine, Tours, France
| | | | | | - Philippe Arbeille
- UMPS-CERCOM (Unite Medecine Physiologie spatiale) Faculte de Medecine, Tours, France.
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17
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Kravtsova VV, Krivoi II. Molecular and Functional Heterogeneity of Na,K-ATPase in the Skeletal Muscle. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s0022093021040086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Shenkman BS, Sharlo KA. How Muscle Activity Controls Slow
Myosin Expression. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s002209302103011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Tomilovskaya E, Amirova L, Nosikova I, Rukavishnikov I, Chernogorov R, Lebedeva S, Saveko A, Ermakov I, Ponomarev I, Zelenskaya I, Shigueva T, Shishkin N, Kitov V, Riabova A, Brykov V, Abu Sheli N, Vassilieva G, Orlov O. The First Female Dry Immersion (NAIAD-2020): Design and Specifics of a 3-Day Study. Front Physiol 2021; 12:661959. [PMID: 34194336 PMCID: PMC8236811 DOI: 10.3389/fphys.2021.661959] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/19/2021] [Indexed: 11/17/2022] Open
Abstract
This article describes procedures and some results of the first study of females undergoing 3-day Dry Immersion. The experiment “NAIAD-2020” was carried out at the Institute of Biomedical Problems (Moscow, Russia) with the participation of six healthy women volunteers (age 30.17 ± 5.5 years, height 1.66 ± 0.1 m, weight 62.05 ± 8.4 kg, BMI 22.39 ± 2.2 kg/m2) with a natural menstrual cycle. During the study, a standard protocol was used, the same as for men, with a minimum period of time spent outside the immersion bath. Before, during and after Immersion, 22 experiments were carried out aimed at studying the neurophysiological, functional, metabolic and psychophysiological functions of the body, the results of which will be presented in future publications. The total time outside the bath for women did not exceed that for men. Systolic and diastolic pressure did not significantly change during the immersion. In the first 24 h after the end of the immersion, heart rate was significantly higher than the background values [F(4,20) = 14.67; P < 0.0001]. Changes in body temperature and water balance were consistent with the patterns found in men. No significant changes in height and weight were found during immersion. All women reported general discomfort and pain in the abdomen and back. The results of this study did not find significant risks to women’s health and showed the feasibility of using this model of the effects of space flight in women of reproductive age.
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Affiliation(s)
- Elena Tomilovskaya
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Liubov Amirova
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Inna Nosikova
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Ilya Rukavishnikov
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Roman Chernogorov
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Svetlana Lebedeva
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Alina Saveko
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Ivan Ermakov
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Ivan Ponomarev
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Inna Zelenskaya
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Tatiana Shigueva
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Nikita Shishkin
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Vladimir Kitov
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Alexandra Riabova
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Vitaly Brykov
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Nelly Abu Sheli
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Galina Vassilieva
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Oleg Orlov
- Russian Federation State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
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20
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Tyganov SA, Mochalova E, Belova S, Sharlo K, Rozhkov S, Kalashnikov V, Turtikova O, Mirzoev T, Shenkman B. Plantar mechanical stimulation attenuates protein synthesis decline in disused skeletal muscle via modulation of nitric oxide level. Sci Rep 2021; 11:9806. [PMID: 33963253 PMCID: PMC8105341 DOI: 10.1038/s41598-021-89362-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 04/19/2021] [Indexed: 01/04/2023] Open
Abstract
Both research conducted under microgravity conditions and ground-based space analog studies have shown that air pump-based plantar mechanical stimulation (PMS) of cutaneous mechanoreceptors of the sole of the foot is able to increase neuromuscular activity in the musculature of the lower limbs. This type of stimulation is able to attenuate unloading-induced skeletal muscle atrophy and impaired muscle function. The aim of the present study was to evaluate the effects of PMS on anabolic signaling pathways in rat soleus muscle following 7-day hindlimb suspension (HS) and to elucidate if the effects of PMS on anabolic processes would be NO-dependent. The soles of the feet were stimulated with a frequency of 1-s inflation/1-s deflation with a total of 20 min followed by 10 min rest. This cycle was repeated for 4 h each day. We observed a decrease in the soleus muscle mass after 7-day HS, which was not prevented by PMS. We also observed a decrease in slow-type fiber cross-sectional area (CSA) by 56%, which significantly exceeded a decrease (-22%) in fast-type fiber CSA. PMS prevented a reduction in slow-twitch fiber CSA, but had no effect on fast-twitch fiber CSA. PMS prevented a 63% decrease in protein synthesis after 7-day HS as well as changes in several key anabolic signaling regulators, such as p70S6k, 4E-BP1, GSK3β, eEF-2, p90RSK. PMS also prevented a decrease in the markers of translational capacity (18S and 28S rRNA, c-myc, 45S pre-rRNA). Some effects of PMS on anabolic signaling were altered due to NO-synthase inhibitor (L-NAME) administration. Thus, PMS is able to partially prevent atrophic processes in rat soleus muscle during 7-day HS, affecting slow-type muscle fibers. This effect is mediated by alterations in anabolic signaling pathways and may depend on NO-synthase activity.
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Affiliation(s)
- Sergey A Tyganov
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007.
| | - Ekaterina Mochalova
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Svetlana Belova
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Kristina Sharlo
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Sergey Rozhkov
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Vitaliy Kalashnikov
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Olga Turtikova
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Timur Mirzoev
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
| | - Boris Shenkman
- Myology Laboratory, Institute of Biomedical Problems RAS, Khoroshevskoe shosse 76a, Moscow, Russian Federation, 123007
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21
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Amirova LE, Plehuna A, Rukavishnikov IV, Saveko AA, Peipsi A, Tomilovskaya ES. Sharp Changes in Muscle Tone in Humans Under Simulated Microgravity. Front Physiol 2021; 12:661922. [PMID: 34025451 PMCID: PMC8134537 DOI: 10.3389/fphys.2021.661922] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/26/2021] [Indexed: 11/17/2022] Open
Abstract
A decrease in muscle tone induced by space flight requires a standardized assessment of changes to control the state of the neuromuscular system. This study is a step toward the development of a unified protocol, aimed at determining the initial effect of the presence or withdrawal of support on muscle tone, the effects of a 2-h supportlessness in Dry Immersion (DI) experiments, and the changes in muscle tone depending on the site of measurement. To perform measurements of changes in muscle tone, we used a MyotonPRO device. The list of muscles that we assessed includes: trunk – mm. deltoideus posterior, trapezius, erector spinae; leg – mm. biceps femoris, rectus femoris, tibialis anterior, soleus, gastrocnemius; foot – m. flexor digitorum brevis, tendo Achillis, aponeurosis plantaris. The study involved 12 healthy volunteers (6 men, 6 women) without musculoskeletal disorders and aged 32.8 ± 1.6 years. At the start of DI, there was a significant decrease in muscle tone of the following muscles: mm. tibialis anterior (−10.9%), soleus (−9.6%), erector spinae (−14.4%), and the tendo Achillis (−15.3%). The decrease continued to intensify over the next 2 h. In contrast, the gastrocnemius muscle demonstrated an increase in muscle tone (+7.5%) 2 h after the start of DI compared to the immediate in-bath baseline. Muscle tone values were found to be site-dependent and varied in different projections of mm. erector spinae and soleus. In previous experiments, we observed a high sensitivity of the myotonometry technique, which was confirmed in this study. To make it possible to compare data from different studies, a standardized protocol for measuring muscle tone for general use in gravitational physiology needs to be developed.
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Affiliation(s)
- Liubov E Amirova
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Anastasija Plehuna
- King's College London, Centre of Human & Applied Physiological Sciences, London, United Kingdom
| | - Ilya V Rukavishnikov
- Department of Medical Support for Spaceflight, Institute of Biomedical Problem of Russian Academy of Science, Moscow, Russia
| | - Alina A Saveko
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | | | - Elena S Tomilovskaya
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
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22
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Shenkman BS, Tsaturyan AK, Vikhlyantsev IM, Kozlovskaya IB, Grigoriev AI. Molecular Mechanisms of Muscle Tone Impairment under Conditions of Real and Simulated Space Flight. Acta Naturae 2021; 13:85-97. [PMID: 34377559 PMCID: PMC8327152 DOI: 10.32607/actanaturae.10953] [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: 04/06/2020] [Accepted: 08/04/2020] [Indexed: 01/08/2023] Open
Abstract
Kozlovskaya et al. [1] and Grigoriev et al. [2] showed that enormous loss of muscle stiffness (atonia) develops in humans under true (space flight) and simulated microgravity conditions as early as after the first days of exposure. This phenomenon is attributed to the inactivation of slow motor units and called reflectory atonia. However, a lot of evidence indicating that even isolated muscle or a single fiber possesses substantial stiffness was published at the end of the 20th century. This intrinsic stiffness is determined by the active component, i.e. the ability to form actin-myosin cross-bridges during muscle stretch and contraction, as well as by cytoskeletal and extracellular matrix proteins, capable of resisting muscle stretch. The main facts on intrinsic muscle stiffness under conditions of gravitational unloading are considered in this review. The data obtained in studies of humans under dry immersion and rodent hindlimb suspension is analyzed. The results and hypotheses regarding reduced probability of cross-bridge formation in an atrophying muscle due to increased interfilament spacing are described. The evidence of cytoskeletal protein (titin, nebulin, etc.) degradation during gravitational unloading is also discussed. The possible mechanisms underlying structural changes in skeletal muscle collagen and its role in reducing intrinsic muscle stiffness are presented. The molecular mechanisms of changes in intrinsic stiffness during space flight and simulated microgravity are reviewed.
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Affiliation(s)
- B. S. Shenkman
- State Scientific Center of Russian Federation – Institute of Biomedical Problems, Moscow, 123007 Russia
| | - A. K. Tsaturyan
- Lomonosov Moscow State University Research Institute of Mechanics, Moscow, 119192 Russia
| | - I. M. Vikhlyantsev
- Institute of Experimental and Theoretical Biophysics, Moscow Region, Pushchino, 142290 Russia
| | - I. B. Kozlovskaya
- State Scientific Center of Russian Federation – Institute of Biomedical Problems, Moscow, 123007 Russia
| | - A. I. Grigoriev
- State Scientific Center of Russian Federation – Institute of Biomedical Problems, Moscow, 123007 Russia
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23
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Bryndina IG, Shalagina MN, Protopopov VA, Sekunov AV, Zefirov AL, Zakirjanova GF, Petrov AM. Early Lipid Raft-Related Changes: Interplay between Unilateral Denervation and Hindlimb Suspension. Int J Mol Sci 2021; 22:ijms22052239. [PMID: 33668129 PMCID: PMC7956661 DOI: 10.3390/ijms22052239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/14/2021] [Accepted: 02/21/2021] [Indexed: 01/15/2023] Open
Abstract
Muscle disuse and denervation leads to muscle atrophy, but underlying mechanisms can be different. Previously, we have found ceramide (Cer) accumulation and lipid raft disruption after acute hindlimb suspension (HS), a model of muscle disuse. Herein, using biochemical and fluorescent approaches the influence of unilateral denervation itself and in combination with short-term HS on membrane-related parameters of rat soleus muscle was studied. Denervation increased immunoexpression of sphingomyelinase and Cer in plasmalemmal regions, but decreased Cer content in the raft fraction and enhanced lipid raft integrity. Preliminary denervation suppressed (1) HS-induced Cer accumulation in plasmalemmal regions, shown for both nonraft and raft-fractions; (2) HS-mediated decrease in lipid raft integrity. Similar to denervation, inhibition of the sciatic nerve afferents with capsaicin itself increased Cer plasmalemmal immunoexpression, but attenuated the membrane-related effects of HS. Finally, both denervation and capsaicin treatment increased immunoexpression of proapoptotic protein Bax and inhibited HS-driven increase in antiapoptotic protein Bcl-2. Thus, denervation can increase lipid raft formation and attenuate HS-induced alterations probably due to decrease of Cer levels in the raft fraction. The effects of denervation could be at least partially caused by the loss of afferentation. The study points to the importance of motor and afferent inputs in control of Cer distribution and thereby stability of lipid rafts in the junctional and extrajunctional membranes of the muscle.
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Affiliation(s)
- Irina G. Bryndina
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Maria N. Shalagina
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Vladimir A. Protopopov
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Alexey V. Sekunov
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Andrey L. Zefirov
- Institute of Neuroscience, Kazan State Medical University, Butlerova St. 49, Kazan 420012, Russia; (A.L.Z.); (G.F.Z.)
| | - Guzalia F. Zakirjanova
- Institute of Neuroscience, Kazan State Medical University, Butlerova St. 49, Kazan 420012, Russia; (A.L.Z.); (G.F.Z.)
- Laboratory of Biophysics of Synaptic Processes, Kazan Institute of Biochemistry and Biophysics, Federal Research Center “Kazan Scientific Center of RAS”, P. O. Box 30, Lobachevsky St. 2/31, Kazan 420111, Russia
| | - Alexey M. Petrov
- Institute of Neuroscience, Kazan State Medical University, Butlerova St. 49, Kazan 420012, Russia; (A.L.Z.); (G.F.Z.)
- Laboratory of Biophysics of Synaptic Processes, Kazan Institute of Biochemistry and Biophysics, Federal Research Center “Kazan Scientific Center of RAS”, P. O. Box 30, Lobachevsky St. 2/31, Kazan 420111, Russia
- Correspondence: or
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24
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Sharlo KA, Paramonova II, Lvova ID, Mochalova EP, Kalashnikov VE, Vilchinskaya NA, Tyganov SA, Konstantinova TS, Shevchenko TF, Kalamkarov GR, Shenkman BS. Plantar Mechanical Stimulation Maintains Slow Myosin Expression in Disused Rat Soleus Muscle via NO-Dependent Signaling. Int J Mol Sci 2021; 22:1372. [PMID: 33573052 PMCID: PMC7866401 DOI: 10.3390/ijms22031372] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 11/17/2022] Open
Abstract
It was observed that gravitational unloading during space missions and simulated microgravity in ground-based studies leads to both transformation of slow-twitch muscle fibers into fast-twitch fibers and to the elimination of support afferentation, leading to the "switching-off" of postural muscle motor units electrical activity. In recent years, plantar mechanical stimulation (PMS) has been found to maintain the neuromuscular activity of the hindlimb muscles. Nitric oxide (NO) was shown to be one of the mediators of muscle fiber activity, which can also promote slow-type myosin expression. We hypothesized that applying PMS during rat hindlimb unloading would lead to NO production upregulation and prevention of the unloading-induced slow-to-fast fiber-type shift in rat soleus muscles. To test this hypothesis, Wistar rats were hindlimb suspended and subjected to daily PMS, and one group of PMS-subjected animals was also treated with nitric oxide synthase inhibitor (L-NAME). We discovered that PMS led to sustained NO level in soleus muscles of the suspended animals, and NOS inhibitor administration blocked this effect, as well as the positive effects of PMS on myosin I and IIa mRNA transcription and slow-to-fast fiber-type ratio during rat hindlimb unloading. The results of the study indicate that NOS activity is necessary for the PMS-mediated prevention of slow-to-fast fiber-type shift and myosin I and IIa mRNA transcription decreases during rat hindlimb unloading.
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Affiliation(s)
- Kristina A. Sharlo
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Inna I. Paramonova
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Irina D. Lvova
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Ekaterina P. Mochalova
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Vitaliy E. Kalashnikov
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Natalia A. Vilchinskaya
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Sergey A. Tyganov
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
| | - Tatyana S. Konstantinova
- Emanuel Institute of Biochemical Physics, RAS, 123007 Moscow, Russia; (T.S.K.); (T.F.S.); (G.R.K.)
| | - Tatiana F. Shevchenko
- Emanuel Institute of Biochemical Physics, RAS, 123007 Moscow, Russia; (T.S.K.); (T.F.S.); (G.R.K.)
| | - Grigoriy R. Kalamkarov
- Emanuel Institute of Biochemical Physics, RAS, 123007 Moscow, Russia; (T.S.K.); (T.F.S.); (G.R.K.)
| | - Boris S. Shenkman
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia; (K.A.S.); (I.D.L.); (E.P.M.); (V.E.K.); (N.A.V.); (S.A.T.); (B.S.S.)
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Fadeev F, Eremeev A, Bashirov F, Shevchenko R, Izmailov A, Markosyan V, Sokolov M, Kalistratova J, Khalitova A, Garifulin R, Islamov R, Lavrov I. Combined Supra- and Sub-Lesional Epidural Electrical Stimulation for Restoration of the Motor Functions after Spinal Cord Injury in Mini Pigs. Brain Sci 2020; 10:brainsci10100744. [PMID: 33081405 PMCID: PMC7650717 DOI: 10.3390/brainsci10100744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/06/2020] [Accepted: 10/12/2020] [Indexed: 12/20/2022] Open
Abstract
This study evaluates the effect of combined epidural electrical stimulation (EES) applied above (C5) and below (L2) the spinal cord injury (SCI) at T8–9 combined with motor training on the restoration of sensorimotor function in mini pigs. The motor evoked potentials (MEP) induced by EES applied at C5 and L2 levels were recorded in soleus muscles before and two weeks after SCI. EES treatment started two weeks after SCI and continued for 6 weeks led to improvement in multiple metrics, including behavioral, electrophysiological, and joint kinematics outcomes. In control animals after SCI a multiphasic M-response was observed during M/H-response testing, while animals received EES-enable training demonstrated the restoration of the M-response and H-reflex, although at a lower amplitude. The joint kinematic and assessment with Porcine Thoracic Injury Behavior scale (PTIBS) motor recovery scale demonstrated improvement in animals that received EES-enable training compared to animals with no treatment. The positive effect of two-level (cervical and lumbar) epidural electrical stimulation on functional restoration in mini pigs following spinal cord contusion injury in mini pigs could be related with facilitation of spinal circuitry at both levels and activation of multisegmental coordination. This approach can be taken as a basis for the future development of neuromodulation and neurorehabilitation therapy for patients with spinal cord injury.
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Affiliation(s)
- Filip Fadeev
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Anton Eremeev
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia;
| | - Farid Bashirov
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Roman Shevchenko
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Andrei Izmailov
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Vage Markosyan
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Mikhail Sokolov
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Julia Kalistratova
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Anastasiia Khalitova
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Ravil Garifulin
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
| | - Rustem Islamov
- Department of Medical Biology and Genetics, Kazan State Medical University, 420012 Kazan, Russia; (F.F.); (F.B.); (R.S.); (A.I.); (V.M.); (M.S.); (J.K.); (A.K.); (R.G.)
- Correspondence: (R.I.); (I.L.)
| | - Igor Lavrov
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia;
- Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
- Department of Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
- Correspondence: (R.I.); (I.L.)
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26
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Shenkman BS. How Postural Muscle Senses Disuse? Early Signs and Signals. Int J Mol Sci 2020; 21:E5037. [PMID: 32708817 PMCID: PMC7404025 DOI: 10.3390/ijms21145037] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 12/11/2022] Open
Abstract
A mammalian soleus muscle along with other "axial" muscles ensures the stability of the body under the Earth's gravity. In rat experiments with hindlimb suspension, zero-gravity parabolic flights as well as in human dry immersion studies, a dramatic decrease in the electromyographic (EMG) activity of the soleus muscle has been repeatedly shown. Most of the motor units of the soleus muscle convert from a state of activity to a state of rest which is longer than under natural conditions. And the state of rest gradually converts to the state of disuse. This review addresses a number of metabolic events that characterize the earliest stage of the cessation of the soleus muscle contractile activity. One to three days of mechanical unloading are accompanied by energy-dependent dephosphorylation of AMPK, accumulation of the reactive oxygen species, as well as accumulation of resting myoplasmic calcium. In this transition period, a rapid rearrangement of the various signaling pathways occurs, which, primarily, results in a decrease in the rate of protein synthesis (primarily via inhibition of ribosomal biogenesis and activation of endogenous inhibitors of mRNA translation, such as GSK3β) and an increase in proteolysis (via upregulation of muscle-specific E3-ubiquitin ligases).
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Affiliation(s)
- Boris S Shenkman
- Myology Laboratory, Institute of Biomedical Problems RAS, 123007 Moscow, Russia
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27
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Sharlo KA, Paramonova II, Lvova ID, Vilchinskaya NA, Bugrova AE, Shevchenko TF, Kalamkarov GR, Shenkman BS. NO-Dependent Mechanisms of Myosin Heavy Chain Transcription Regulation in Rat Soleus Muscle After 7-Days Hindlimb Unloading. Front Physiol 2020; 11:814. [PMID: 32754051 PMCID: PMC7366496 DOI: 10.3389/fphys.2020.00814] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 06/18/2020] [Indexed: 12/27/2022] Open
Abstract
It is known that nitric oxide (NO) may affect myosin heavy chain (MyHC) isoform mRNA transcription in skeletal muscles. The content of NO in soleus muscles decreases during rat hindlimb unloading as well as slow MyHC mRNA transcription. We aimed to detect which signaling pathways are involved in NO-dependent prevention of hindlimb-suspension (HS)-induced changes in MyHCs’ expression pattern. Male Wistar rats were divided into four groups: cage control group (C), hindlimb suspended for 7 days (7HS), hindlimb suspended for 7 days with L-arginine administration (7HS+A) (500 mg/kg body mass), and hindlimb suspended for 7 days with both L-arginine (500 mg/kg) and NO-synthase inhibitor L-NAME administration (50 mg/kg) (7HS+A+N). L-arginine treatment during 7 days of rat HS prevented HS-induced NO content decrease and slow MyHC mRNA transcription decrease and attenuated fast MyHC IIb mRNA transcription increase; it also prevented NFATc1 nuclear content decrease, calsarcin-2 expression increase, and GSK-3β Ser 9 phosphorylation decrease. Moreover, L-arginine administration prevented the HS-induced myh7b and PGC1α mRNAs content decreases and slow-type genes repressor SOX6 mRNA transcription increase. All these slow fiber-type protective effects of L-arginine were blocked in HS+A+N group, indicating that these effects were NO-dependent. Thus, NO decrease prevention during HS restores calcineurin/NFATc1 and myh7b/SOX6 signaling.
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Affiliation(s)
- Kristina A Sharlo
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Inna I Paramonova
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Irina D Lvova
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Natalia A Vilchinskaya
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Anna E Bugrova
- Neurochemistry Laboratory, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Tatiana F Shevchenko
- Neurochemistry Laboratory, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Grigoriy R Kalamkarov
- Neurochemistry Laboratory, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Boris S Shenkman
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
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28
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Amirova L, Navasiolava N, Rukavishvikov I, Gauquelin-Koch G, Gharib C, Kozlovskaya I, Custaud MA, Tomilovskaya E. Cardiovascular System Under Simulated Weightlessness: Head-Down Bed Rest vs. Dry Immersion. Front Physiol 2020; 11:395. [PMID: 32508663 PMCID: PMC7248392 DOI: 10.3389/fphys.2020.00395] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/02/2020] [Indexed: 12/19/2022] Open
Abstract
Background The most applicable human models of weightlessness are −6° head-down bed rest (HDBR) and head-out dry immersion (DI). A detailed experimental comparison of cardiovascular responses in both models has not yet been carried out, in spite of numerous studies having been performed in each of the models separately. Objectives We compared changes in central hemodynamics, autonomic regulation, plasma volume, and water balance induced by −6° HDBR and DI. Methods Eleven subjects participated in a 21-day HDBR and 12 subjects in a 3-day DI. During exposure, measurements of the water balance, blood pressure, and heart rate were performed daily. Plasma volume evolution was assessed by the Dill–Costill method. In order to assess orthostatic tolerance time (OTT), central hemodynamic responses to orthostatic stimuli, and autonomous regulation, the 80° lower body negative pressure–tilt test was conducted before and right after both exposures. Results For most of the studied parameters, the changes were co-directional, although they differed in their extent. The changes in systolic blood pressure and total peripheral resistance after HDBR were more pronounced than those after DI. The OTT was decreased in both groups: to 14.2 ± 3.1 min (vs. 27.9 ± 2.5 min before exposure) in the group of 21-day HDBR and to 8.7 ± 2.1 min (vs. 27.7 ± 1.2 min before exposure) in the group of 3-day DI. Conclusions In general, cardiovascular changes during the 21-day HDBR and 3-day DI were co-directional. In some cases, changes in the parameters after 3-day DI exceeded changes after the 21-day HDBR, while in other cases the opposite was true. Significantly stronger effects of DI on cardiovascular function may be due to hypovolemia and support unloading (supportlessness).
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Affiliation(s)
- Liubov Amirova
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia.,Laboratoire MITOVASC, UMR Institut National de la Santé et de la Recherche Médicale 1083, Centre National de la Recherche Scientifique 6015, Université d'Angers, Angers, France
| | - Nastassia Navasiolava
- Laboratoire MITOVASC, UMR Institut National de la Santé et de la Recherche Médicale 1083, Centre National de la Recherche Scientifique 6015, Université d'Angers, Angers, France
| | - Ilya Rukavishvikov
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | | | - Claude Gharib
- Institut NeuroMyogène, Université Claude Bernard Lyon 1, Lyon, France
| | - Inessa Kozlovskaya
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Marc-Antoine Custaud
- Laboratoire MITOVASC, UMR Institut National de la Santé et de la Recherche Médicale 1083, Centre National de la Recherche Scientifique 6015, Université d'Angers, Angers, France.,Centre de Recherche Clinique, Centre Hospitalier Universitaire d'Angers, Angers, France
| | - Elena Tomilovskaya
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
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29
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Saveko A, Rukavishnikov I, Brykov V, Osetsky N, Ryazanskiy S, Grishin MA, Tomilovskaya E, Kozlovskaya I. Foot-ground reaction force during long-term space flight and after it: walking in active treadmill mode. Gait Posture 2020; 76:382-388. [PMID: 31923758 DOI: 10.1016/j.gaitpost.2019.12.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/28/2019] [Accepted: 12/31/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Alina Saveko
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
| | - Ilya Rukavishnikov
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
| | - Vitaly Brykov
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
| | - Nikolay Osetsky
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
| | - Sergey Ryazanskiy
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
| | | | - Elena Tomilovskaya
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
| | - Inesa Kozlovskaya
- RF State Scientific Center - Institute of Biomedical Problems of the Russian Academy of Sciences, 123007, 76A Khoroshevskoe Shosse, Moscow, Russia.
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30
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Tyganov SA, Mochalova EP, Belova SP, Sharlo KA, Rozhkov SV, Vilchinskaya NA, Paramonova II, Mirzoev TM, Shenkman BS. Effects of Plantar Mechanical Stimulation on Anabolic and Catabolic Signaling in Rat Postural Muscle Under Short-Term Simulated Gravitational Unloading. Front Physiol 2019; 10:1252. [PMID: 31611819 PMCID: PMC6776874 DOI: 10.3389/fphys.2019.01252] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/12/2019] [Indexed: 12/18/2022] Open
Abstract
It is known that plantar mechanical stimulation (PMS) is able to attenuate unloading-induced skeletal muscle atrophy and impaired muscle function. However, molecular mechanisms underlying the effect of PMS on skeletal muscle during unloading remain undefined. The aim of the study was to evaluate the effects of PMS on anabolic and catabolic signaling pathways in rat soleus at the early stages of mechanical unloading. Wistar rats were randomly assigned to ambulatory control, hindlimb suspension (HS) for 1 or 3 days, and HS for 1 or 3 days with PMS. The key anabolic and catabolic markers were assessed by western blotting and RT-PCR. Protein synthesis (PS) rate was estimated using SUnSET technique. PMS attenuated a 1-day HS-induced decrease in 4E-BP1, GSK-3β, and AMPK phosphorylation. PMS also partially prevented a decrease in PS, phosphorylation of GSK-3β, nNOS, and an increase in eEF2 phosphorylation after 3-day HS. PMS during 1- and 3-day HS prevented MuRF-1, but not MAFbx, upregulation but did not affect markers of ribosome biogenesis (18S + 28S rRNA, c-myc) as well as AKT phosphorylation. Thus, PMS during 3-day HS partially prevented a decrease in the global rate of PS in rat soleus muscle, which was accompanied by attenuation of MuRF-1 mRNA expression as well as changes in GSK-3β, nNOS, and eEF2 phosphorylation.
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Affiliation(s)
- Sergey A Tyganov
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina P Mochalova
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Svetlana P Belova
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Kristina A Sharlo
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Sergey V Rozhkov
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Natalia A Vilchinskaya
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Inna I Paramonova
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Timur M Mirzoev
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Boris S Shenkman
- Myology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
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