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Jung W, Juang U, Gwon S, Nguyen H, Huang Q, Lee S, Lee B, Kim SH, Ryu S, Park J, Park J. Identifying the potential therapeutic effects of miR‑6516 on muscle disuse atrophy. Mol Med Rep 2024; 30:119. [PMID: 38757344 DOI: 10.3892/mmr.2024.13243] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 03/27/2024] [Indexed: 05/18/2024] Open
Abstract
Muscle atrophy is a debilitating condition with various causes; while aging is one of these causes, reduced engagement in routine muscle‑strengthening activities also markedly contributes to muscle loss. Although extensive research has been conducted on microRNAs (miRNAs/miRs) and their associations with muscle atrophy, the roles played by miRNA precursors remain underexplored. The present study detected the upregulation of the miR‑206 precursor in cell‑free (cf)RNA from the plasma of patients at risk of sarcopenia, and in cfRNAs from the muscles of mice subjected to muscle atrophy. Additionally, a decline in the levels of the miR‑6516 precursor was observed in mice with muscle atrophy. The administration of mimic‑miR‑6516 to mice immobilized due to injury inhibited muscle atrophy by targeting and inhibiting cyclin‑dependent kinase inhibitor 1b (Cdkn1b). Based on these results, the miR‑206 precursor appears to be a potential biomarker of muscle atrophy, whereas miR‑6516 shows promise as a therapeutic target to alleviate muscle deterioration in patients with muscle disuse and atrophy.
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Affiliation(s)
- Woohyeong Jung
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Uijin Juang
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Suhwan Gwon
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Hounggiang Nguyen
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Qingzhi Huang
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Soohyeon Lee
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Beomwoo Lee
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Sunyoung Ryu
- Mitos Biomedical Institute, Mitos Therapeutics Inc., Daejeon 34134, Republic of Korea
| | - Jisoo Park
- Mitos Biomedical Institute, Mitos Therapeutics Inc., Daejeon 34134, Republic of Korea
| | - Jongsun Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
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2
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Hettinger ZR, Hamagata K, Confides AL, Lawrence MM, Miller BF, Butterfield TA, Dupont-Versteegden EE. Age-Related Susceptibility to Muscle Damage Following Mechanotherapy in Rats Recovering From Disuse Atrophy. J Gerontol A Biol Sci Med Sci 2021; 76:2132-2140. [PMID: 34181006 PMCID: PMC8599051 DOI: 10.1093/gerona/glab186] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 12/13/2022] Open
Abstract
The inability to fully recover lost muscle mass following periods of disuse atrophy predisposes older adults to lost independence and poor quality of life. We have previously shown that mechanotherapy at a moderate load (4.5 N) enhances muscle mass recovery following atrophy in adult, but not older adult rats. We propose that elevated transverse stiffness in aged muscle inhibits the growth response to mechanotherapy and hypothesize that a higher load (7.6 N) will overcome this resistance to mechanical stimuli. F344/BN adult and older adult male rats underwent 14 days of hindlimb suspension, followed by 7 days of recovery with (RE + M) or without (RE) mechanotherapy at 7.6 N on gastrocnemius muscle. The 7.6 N load was determined by measuring transverse passive stiffness and linearly scaling up from 4.5 N. No differences in protein turnover or mean fiber cross-sectional area were observed between RE and RE + M for older adult rats or adult rats at 7.6 N. However, there was a higher number of small muscle fibers present in older adult, but not adult rats, which was explained by a 16-fold increase in the frequency of small fibers expressing embryonic myosin heavy chain. Elevated central nucleation, satellite cell abundance, and dystrophin-/laminin+ fibers were present in older adult rats only following 7.6 N, while 4.5 N did not induce damage at either age. We conclude that age is an important variable when considering load used during mechanotherapy and age-related transverse stiffness may predispose older adults to damage during the recovery period following disuse atrophy.
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Affiliation(s)
- Zachary R Hettinger
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, USA
- Center for Muscle Biology, University of Kentucky, Lexington, USA
| | - Kyoko Hamagata
- Center for Muscle Biology, University of Kentucky, Lexington, USA
| | - Amy L Confides
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, USA
- Center for Muscle Biology, University of Kentucky, Lexington, USA
| | - Marcus M Lawrence
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, USA
| | - Benjamin F Miller
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, USA
| | - Timothy A Butterfield
- Center for Muscle Biology, University of Kentucky, Lexington, USA
- Department of Athletic Training and Clinical Nutrition, College of Health Sciences, University of Kentucky, Lexington, USA
| | - Esther E Dupont-Versteegden
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, USA
- Center for Muscle Biology, University of Kentucky, Lexington, USA
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3
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Anderson JE, Zhu A, Mizuno TM. Nitric oxide treatment attenuates muscle atrophy during hind limb suspension in mice. Free Radic Biol Med 2018; 115:458-470. [PMID: 29277394 DOI: 10.1016/j.freeradbiomed.2017.12.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/09/2017] [Accepted: 12/15/2017] [Indexed: 02/07/2023]
Abstract
UNLABELLED Debilitating muscle-disuse atrophy in aging or obesity has huge socioeconomic impact. Since nitric oxide (NO) mediates muscle satellite cell activation and induces hypertrophy with exercise in old mice, we tested whether treatment with the NO donor, isosorbide dinitrate (ISDN), during hind limb suspension would reduce atrophy. Mice were suspended 18 days, with or without daily ISDN (66mg/kg). Muscles were examined for atrophy (weight, fiber diameter); regulatory changes in atrogin-1 (a negative regulator of muscle mass), myostatin (inhibits myogenesis), and satellite cell proliferation; and metabolic responses in myosin heavy chains (MyHCs), liver lipid, and hypothalamic gene expression. Suspension decreased muscle weight and weight relative to body weight between 25-55%, and gastrocnemius fiber diameter vs. CONTROLS In young-adult mice, ISDN attenuated atrophy by half or more. In quadriceps, ISDN completely prevented the suspension-induced rise in atrogin-1 and drop in myostatin precursor, and attenuated the changes in MyHCs 1 and 2b observed in unloaded muscles without treatment. Fatty liver in suspended young-adult mice was also reduced by ISDN; suspended young mice had higher hypothalamic expression of the orexigenic agouti-related protein, Agrp than controls. Notably, a suspension-induced drop in muscle satellite cell proliferation by 25-58% was completely prevented (young mice) or attenuated (halved, in young-adult mice) by ISDN. NO-donor treatment has potential to attenuate atrophy and metabolic changes, and prevent regulatory changes during disuse and offset/prevent wasting in age-related sarcopenia or space travel. Increases in precursor proliferation resulting from NO treatment would also amplify benefits of physical therapy and exercise.
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Affiliation(s)
- Judy E Anderson
- Department of Biological Sciences, University of Manitoba, 50 Sifton Road, Winnipeg, MB, Canada R3T 2N2.
| | - Antonia Zhu
- Department of Biological Sciences, University of Manitoba, 50 Sifton Road, Winnipeg, MB, Canada R3T 2N2
| | - Tooru M Mizuno
- Department of Physiology and Pathophysiology, Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermott Avenue, Winnipeg, MB, Canada R3E 3P5
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Pal S, Chughtai M, Sultan AA, Khlopas A, Sodhi N, George NE, Etcheson JI, Gwam CU, Newman JM, Samuel LT, Bhave A, DaVanzo JE, Mont MA. Impact of Neuromuscular Electrical Stimulation (NMES) on 90-Day Episode Costs and Post-Acute Care Utilization in Total Knee Replacement Patients with Disuse Atrophy. Surg Technol Int 2017; 31:384-388. [PMID: 29316600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
INTRODUCTION This study evaluated differences in: 1) total episode payments, 2) probability of hospital readmission, 3) probability of inpatient rehab facility (IRF) and utilization, and 4) probability of skilled nursing care facility (SNF) utilization in patients who had disuse atrophy and underwent a total knee arthroplasty (TKA) and either did, or did not, receive preoperative home-based neuromuscular electrical stimulation (NMES) therapy. MATERIALS AND METHODS We used the Medicare limited dataset for a 5% sample of beneficiaries from 2014 and 2015 to construct episodes-of-care for TKA (DRG-470) patients with disuse atrophy who underwent a TKA during the 30 days prior to hospital admission and 90 days post-discharge. Patients were stratified into those who either did or did not receive pre- and postoperative NMES therapy. An ordinary least square (OLS) model was used to estimate the impact of NMES on total episode. Linear probability models were used to estimate the impact of NMES on SNF or IRF utilization and readmission. RESULTS A $3,274 reduction in episode payments for patients who used preoperative NMES versus those who did not (p<0.001) was demonstrated. The probability of readmission was 12.7% lower for those who used preoperative NMES therapy versus those who did not (p=0.609). The probability of utilizing IRF and SNF was 56.7% (p=0.061) and 46.4% (p=<0.001) lower for those who used pre- and postoperative NMES versus those who did not, respectively. CONCLUSION Significant reduction in total episode payments and SNF utilization for TKA patients with disuse atrophy who had NMES therapy was demonstrated.
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Affiliation(s)
| | - Morad Chughtai
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Assem A Sultan
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Anton Khlopas
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Nipun Sodhi
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Nicole E George
- Department of Orthopaedic Surgery, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopaedics, Baltimore, Maryland
| | - Jennifer I Etcheson
- Department of Orthopaedic Surgery, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopaedics, Baltimore, Maryland
| | - Chukwuweike U Gwam
- Department of Orthopaedic Surgery, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopaedics, Baltimore, Maryland
| | - Jared M Newman
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Linsen T Samuel
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Anil Bhave
- Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland
| | | | - Michael A Mont
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
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Glass OK, Ramalingam S, Harrison MR. Resistance exercise training in patients with genitourinary cancers to mitigate treatment-related skeletal muscle loss. Clin Adv Hematol Oncol 2016; 14:436-446. [PMID: 27379813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The use of targeted therapies in patients with genitourinary malignancies has significantly improved outcomes. For example, androgen receptor (AR) pathway inhibitors have improved outcomes for patients with prostate cancer, and antiangiogenic agents have improved outcomes for those with kidney cancer. However, these advances have been accompanied by musculoskeletal side effects that manifest as physical dysfunction. Although the effects of androgen deprivation therapy on skeletal muscle are well-known, an additional concern is that the muscle loss associated with these newer drugs-especially AR pathway inhibitors-may result in insulin resistance and metabolic syndrome, thus increasing the risk for cardiovascular events and diabetes. Antiangiogenic agents also may cause muscle loss, although this has been poorly described in the literature. As these targeted therapies begin to be used in the earlier stages of treatment, there will be a critical need to prevent treatment-related toxicities with nonpharmacologic interventions. Over the past decade, exercise training has emerged as a novel nonpharmacologic adjunctive method to address toxicities resulting from these targeted therapies. Despite numerous studies in patients with prostate cancer, there remains a large gap in our knowledge of the true efficacy of exercise therapy, as well as the best way to prescribe exercise programs. Here, we suggest that the central role of skeletal muscle in the development of side effects of AR pathway inhibitors and antiangiogenic agents may unlock a number of unique opportunities to study how exercise prescriptions can be used more effectively. Resistance training may be a particularly important modality.
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Affiliation(s)
- Oliver K Glass
- Duke Integrative Medicine, Duke Center for Living, Durham, North Carolina
| | | | - Michael R Harrison
- Duke University Medical School, Duke Cancer Institute, Durham, North Carolina
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6
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Adachi H. [The enhancement of protein degradation systems exerts therapeutic effects in the polyglutamine-mediated motor neuron disease]. No To Hattatsu 2016; 48:188-194. [PMID: 27349081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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7
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Ding Y, Adachi H, Katsuno M, Huang Z, Jiang YM, Kondo N, Iida M, Tohnai G, Nakatsuji H, Funakoshi H, Nakamura T, Sobue G. Overexpression of hepatocyte growth factor in SBMA model mice has an additive effect on combination therapy with castration. Biochem Biophys Res Commun 2015; 468:677-83. [PMID: 26551462 DOI: 10.1016/j.bbrc.2015.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 11/03/2015] [Indexed: 11/20/2022]
Abstract
Spinal and bulbar muscular atrophy (SBMA) is an inherited motor neuron disease caused by the expansion of a polyglutamine (polyQ)-encoding tract within the androgen receptor (AR) gene. The pathologic features of SBMA are motor neuron loss in the spinal cord and brainstem and diffuse nuclear accumulation and nuclear inclusions of mutant AR in residual motor neurons and certain visceral organs. Hepatocyte growth factor (HGF) is a polypeptide growth factor which has neuroprotective properties. To investigate whether HGF overexpression can affect disease progression in a mouse model of SBMA, we crossed SBMA transgenic model mice expressing an AR gene with an expanded CAG repeat with mice overexpressing HGF. Here, we report that high expression of HGF induces Akt phosphorylation and modestly ameliorated motor symptoms in an SBMA transgenic mouse model treated with or without castration. These findings suggest that HGF overexpression can provide a potential therapeutic avenue as a combination therapy with disease-modifying therapies in SBMA.
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Affiliation(s)
- Ying Ding
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroaki Adachi
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Neurology, University of Occupational and Environmental Health School of Medicine, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu 807-8555, Japan.
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Zhe Huang
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Neurology, University of Occupational and Environmental Health School of Medicine, 1-1 Iseigaoka, Yahata-nishi-ku, Kitakyushu 807-8555, Japan
| | - Yue-Mei Jiang
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Naohide Kondo
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Madoka Iida
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Genki Tohnai
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hideaki Nakatsuji
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroshi Funakoshi
- Center for Advanced Research and Education, Asahikawa Medical University, 1-1-1- Higashinijo Midorigaoka, Asahikawa 078-8510, Japan
| | | | - Gen Sobue
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Research Division of Dementia and Neurodegenerative Disease, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
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8
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Chua JP, Lieberman AP. Pathogenic mechanisms and therapeutic strategies in spinobulbar muscular atrophy. CNS Neurol Disord Drug Targets 2013; 12:1146-1156. [PMID: 24040817 PMCID: PMC4003563] [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] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 07/10/2012] [Accepted: 07/10/2012] [Indexed: 06/02/2023]
Abstract
We review the genetic and clinical features of spinobulbar muscular atrophy (SBMA), a progressive neuromuscular disorder caused by a CAG/glutamine tract expansion in the androgen receptor. SBMA was the first polyglutamine disease to be discovered, and we compare and contrast it with related degenerative disorders of the nervous system caused by expanded glutamine tracts. We review the cellular and animals models that have been most widely used to study this disorder, and highlight insights into disease pathogenesis derived from this work. These model systems have revealed critical aspects of the disease, including its hormone dependence, a feature that underlies disease occurrence only in men with the mutant allele. We discuss how this and other findings have been translated to clinical trials for SBMA patients, and examine emerging therapeutic targets that have been identified by recent work.
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Affiliation(s)
| | - Andrew P Lieberman
- Department of Pathology, University of Michigan Medical School, 3510 MSRB1, 1150 W. Medical Center Dr., Ann Arbor, Michigan 48109-0605, USA.
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9
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Manske SL, Good CA, Zernicke RF, Boyd SK. High-frequency, low-magnitude vibration does not prevent bone loss resulting from muscle disuse in mice following botulinum toxin injection. PLoS One 2012; 7:e36486. [PMID: 22590551 PMCID: PMC3349718 DOI: 10.1371/journal.pone.0036486] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [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: 12/16/2011] [Accepted: 04/09/2012] [Indexed: 11/18/2022] Open
Abstract
High-frequency, low-magnitude vibration enhances bone formation ostensibly by mimicking normal postural muscle activity. We tested this hypothesis by examining whether daily exposure to low-magnitude vibration (VIB) would maintain bone in a muscle disuse model with botulinum toxin type A (BTX). Female 16–18 wk old BALB/c mice (N = 36) were assigned to BTX-VIB, BTX-SHAM, VIB, or SHAM. BTX mice were injected with BTX (20 µL; 1 U/100 g body mass) into the left hindlimb posterior musculature. All mice were anaesthetized for 20 min/d, 5 d/wk, for 3 wk, and the left leg mounted to a holder. Through the holder, VIB mice received 45 Hz, ±0.6 g sinusoidal acceleration without weight bearing. SHAM mice received no vibration. At baseline and 3 wk, muscle cross-sectional area (MCSA) and tibial bone properties (epiphysis, metaphysis and diaphysis) were assessed by in vivo micro-CT. Bone volume fraction in the metaphysis decreased 12±9% and 7±6% in BTX-VIB and BTX-SHAM, but increased in the VIB and SHAM. There were no differences in dynamic histomorphometry outcomes between BTX-VIB and BTX nor between VIB and SHAM. Thus, vibration did not prevent bone loss induced by a rapid decline in muscle activity nor produce an anabolic effect in normal mice. The daily loading duration was shorter than would be expected from postural muscle activity, and may have been insufficient to prevent bone loss. Based on the approach used in this study, vibration does not prevent bone loss in the absence of muscle activity induced by BTX.
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MESH Headings
- Animals
- Bone Diseases, Metabolic/chemically induced
- Bone Diseases, Metabolic/pathology
- Bone Diseases, Metabolic/physiopathology
- Bone Diseases, Metabolic/therapy
- Botulinum Toxins, Type A/adverse effects
- Botulinum Toxins, Type A/pharmacology
- Female
- Mice
- Mice, Inbred BALB C
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscle, Skeletal/physiopathology
- Muscular Disorders, Atrophic/chemically induced
- Muscular Disorders, Atrophic/pathology
- Muscular Disorders, Atrophic/physiopathology
- Muscular Disorders, Atrophic/therapy
- Neurotoxins/adverse effects
- Neurotoxins/pharmacology
- Physical Therapy Modalities
- Tibia/pathology
- Tibia/physiopathology
- Vibration
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Affiliation(s)
- Sarah L. Manske
- Faculty of Kinesiology, University of Calgary, Calgary, Canada
- Schulich School of Engineering, University of Calgary, Calgary, Canada
| | - Craig A. Good
- Schulich School of Engineering, University of Calgary, Calgary, Canada
| | - Ronald F. Zernicke
- Faculty of Kinesiology, University of Calgary, Calgary, Canada
- Faculty of Medicine, University of Calgary, Calgary, Canada
- Departments of Orthopaedic Surgery and Biomedical Engineering and School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
| | - Steven K. Boyd
- Schulich School of Engineering, University of Calgary, Calgary, Canada
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10
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Ruck J, Chabot G, Rauch F. Vibration treatment in cerebral palsy: A randomized controlled pilot study. J Musculoskelet Neuronal Interact 2010; 10:77-83. [PMID: 20190383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this 6-month trial, twenty children with cerebral palsy (age 6.2 to 12.3 years; 6 girls) were randomized to either continue their school physiotherapy program unchanged or to receive 9 minutes of side-alternating whole-body vibration (WBV; Vibraflex Home Edition II, Orthometrix Inc) per school day in addition to their school physiotherapy program. Patients who had received vibration therapy increased the average walking speed in the 10 m walk test by a median of 0.18 ms(-1) (from a baseline of 0.47 ms(-1)), whereas there was no change in the control group (P=0.03 for the group difference in walking speed change). No significant group differences were detected for changes in areal bone mineral density (aBMD) at the lumbar spine, but at the distal femoral diaphysis aBMD increased in controls and decreased in the WBV group (P=0.03 for the group difference in aBMD change). About 1% of the WBV treatment sessions were interrupted because the child complained of fatigue or pain. In conclusion, the WBV protocol used in this study appears to be safe in children with cerebral palsy and may improve mobility function but we did not detect a positive treatment effect on bone.
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MESH Headings
- Bone Density/physiology
- Bone Development/physiology
- Bone Diseases, Metabolic/etiology
- Bone Diseases, Metabolic/physiopathology
- Bone Diseases, Metabolic/therapy
- Cerebral Palsy/complications
- Cerebral Palsy/physiopathology
- Cerebral Palsy/therapy
- Child
- Child, Preschool
- Exercise Tolerance/physiology
- Female
- Gait Disorders, Neurologic/etiology
- Gait Disorders, Neurologic/physiopathology
- Gait Disorders, Neurologic/therapy
- Humans
- Male
- Mobility Limitation
- Muscle Strength/physiology
- Muscle Weakness/etiology
- Muscle Weakness/physiopathology
- Muscle Weakness/therapy
- Muscular Disorders, Atrophic/etiology
- Muscular Disorders, Atrophic/physiopathology
- Muscular Disorders, Atrophic/therapy
- Musculoskeletal Development/physiology
- Osteogenesis/physiology
- Pilot Projects
- Recovery of Function/physiology
- Treatment Outcome
- Vibration/therapeutic use
- Walking/physiology
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Affiliation(s)
- J Ruck
- Shriners Hospital for Children, Montreal, Qc, Canada
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11
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Qin YX, Lam H, Ferreri S, Rubin C. Dynamic skeletal muscle stimulation and its potential in bone adaptation. J Musculoskelet Neuronal Interact 2010; 10:12-24. [PMID: 20190376 PMCID: PMC4961074] [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] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
To identify mechanotransductive signals for combating musculoskeletal deterioration, it is essential to determine the components and mechanisms critical to the anabolic processes of musculoskeletal tissues. It is hypothesized that the interaction between bone and muscle may depend on fluid exchange in these tissues by mechanical loading. It has been shown that intramedullary pressure (ImP) and low-level bone strain induced by muscle stimulation (MS) has the potential to mitigate bone loss induced by disuse osteopenia. Optimized MS signals, i.e., low-intensity and high frequency, may be critical in maintaining bone mass and mitigating muscle atrophy. The objectives for this review are to discuss the potential for MS to induce ImP and strains on bone, to regulate bone adaptation, and to identify optimized stimulation frequency in the loading regimen. The potential for MS to regulate blood and fluid flow will also be discussed. The results suggest that oscillatory MS regulates fluid dynamics with minimal mechanical strain in bone. The response was shown to be dependent on loading frequency, serving as a critical mediator in mitigating bone loss. A specific regimen of dynamic MS may be optimized in vivo to attenuate disuse osteopenia and serve as a biomechanical intervention in the clinical setting.
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Affiliation(s)
- Y X Qin
- Orthopaedic Bioengineering Research Laboratory, Department of Biomedical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-5281, USA.
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12
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Banno H, Katsuno M, Suzuki K, Iguchi Y, Adachi H, Tanaka F, Sobue G. [Molecular-targeted therapy for motor neuron disease]. Brain Nerve 2009; 61:891-900. [PMID: 19697878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The mechanisms underlying selective motor neuron degeneration in amyotrophic lateral sclerosis (ALS) remain unknown. There have been several important clinical trials on the treatment of ALS and treatment efficacy studies using mouse (SOD1) models of ALS. The latter revealed that diminished mutant SOD1 expression in the astrocytes delayed microglial activation and slowed disease progression. Dyslipidemia has been reported to have a protective effect in ALS patients. Current evidence has implicated a 43-kDa TAR DNA-binding protein (TDP-43) in the pathologenesis of ALS. Several mutations in TDP-43 were discovered in families with inherited motor neuron disease. Although phase III trials revealed that creatine monohydrate and IGF-1 was not beneficial for patients with ALS, favorable outcomes in SOD1 mice were reported with lithium, NADPH oxidase inhibitor, free-radical scavenger, and ammonium tetrathiomolybdate. Spinal and bulbar muscular atrophy (SBMA) is an adult-onset motor neuron disease affecting only males. Animal studies have revealed that the pathogenesis of SBMA depends on the serum testosterone level and that androgen deprivation mitigates neurodegeneration through inhibition of nuclear accumulation of the pathogenic androgen receptor (AR). Our studies have also identified several candidates for the treatment of SBMA. Selective inhibition of heat shock protein (HSP) facilitates the proteasomal degradation of pathogenic AR, leading to improvements in the signs and symptoms of SBMA mice. Oral administration of sodium butyrate--a histone deacetylase inhibitor--resulted in the improvement of neurological dysfunction in the SBMA mouse model, although its therapeutic dose range is narrow.
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Affiliation(s)
- Haruhiko Banno
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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Endo T. Stem cells and plasticity of skeletal muscle cell differentiation: potential application to cell therapy for degenerative muscular diseases. Regen Med 2009; 2:243-56. [PMID: 17511561 DOI: 10.2217/17460751.2.3.243] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Degenerative muscular diseases, such as muscular dystrophies, have been the representative targets of regenerative cell therapy. Although satellite cells play central roles in skeletal muscle regeneration that intrinsically occurs after muscle injury, their application to cell therapy is confronted by difficulties. Other stem cells expected to be applicable to cell therapy include muscle-resident stem cells and nonmuscle-resident stem cells. Moreover, dedifferentiated cells of skeletal muscle might provide unique system for cell therapy. Terminally differentiated myotubes have plasticity of differentiation and dedifferentiate under certain experimental conditions, including the expression of SV40 large T antigen or the homeobox gene Msx1. The dedifferentiated cells exhibit multipotency to transdifferentiate into multiple mesenchymal origin cells. In addition, fibroblasts or undifferentiated myoblasts treated with a drug acquire multipotency. These cells may open new doors in cell therapy.
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Affiliation(s)
- Takeshi Endo
- Chiba University, Department of Biology, Graduate School of Science, Chiba 263-8522, Japan.
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Tanaka F, Sobue G. [Integrated molecular medicine for neuronal and neoplastic disorders]. Seikagaku 2007; 79:121-30. [PMID: 17370616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Affiliation(s)
- Fumiaki Tanaka
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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Bandholm T, Rasmussen L, Aagaard P, Jensen BR, Diederichsen L. Force steadiness, muscle activity, and maximal muscle strength in subjects with subacromial impingement syndrome. Muscle Nerve 2006; 34:631-9. [PMID: 16921511 DOI: 10.1002/mus.20636] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We investigated the effects of the subacromial impingement syndrome (SIS) on shoulder sensory-motor control and maximal shoulder muscle strength. It was hypothesized that both would be impaired due to chronic shoulder pain associated with the syndrome. Nine subjects with unilateral SIS who remained physically active in spite of shoulder pain and nine healthy matched controls were examined to determine isometric and isokinetic submaximal shoulder-abduction force steadiness at target forces corresponding to 20%, 27.5%, and 35% of the maximal shoulder abductor torque, and maximal shoulder muscle strength (MVC). Electromyographic (EMG) activity was assessed using surface and intramuscular recordings from eight shoulder muscles. Force steadiness was impaired in SIS subjects during concentric contractions at the highest target force level only, with muscle activity largely unaffected. No between-group differences in shoulder MVC were observed. The present data suggest that shoulder sensory-motor control is only mildly impaired in subjects with SIS who are able to continue with upper body physical activity in spite of shoulder pain. Thus, physical activity should be continued by patients with SIS, if possible, to avoid the loss in neural and muscle functions associated with inactivity.
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Affiliation(s)
- Thomas Bandholm
- Institute of Exercise and Sport Sciences, Department of Human Physiology, University of Copenhagen, Copenhagen, Denmark.
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Dahl A, Skjeldal OH, Simensen A, Dalen HE, Bråthen T, Ahlvin P, Svendsby EK, Sveinall A, Fredriksen PM. [Treatment of patients with neuromuscular disease in a warm climate]. Tidsskr Nor Laegeforen 2004; 124:1795-8. [PMID: 15229669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND Several patient groups request treatment in a warm climate, in spite of the fact that the effects of such treatment are undocumented. MATERIAL AND METHODS 47 children and 40 adults with neuromuscular diseases were recruited, stratified according to sex, use or non-use of electric wheelchair, primary myopathy or hereditary neuropathy, and randomised into two adult and two children groups. The patients were treated in a rehabilitation centre, either on Lanzarote or in Norway. All patients were monitored with physical tests and questionnaires at the start of the study, at the end of the treatment period, after three months (all groups) and after six months (adults only). RESULTS No significant differences in effect between the groups were found. In the warm climate, the adult patient group showed a statistically significant improvement regarding pain, quality of life, depression, and results of physical tests at the end of treatment. After three months, the improvement in physical tests was still present. Among adult patients treated in Norway, improvement in physical tests was statistically significant after three months, but not at the end of the treatment period. INTERPRETATION This study did not show a statistically significant difference between patients with various neuromuscular diseases treated in a warm climate compared to similar patients treated in Norway.
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Affiliation(s)
- Arve Dahl
- Seksjon for behandlingsreiser, Revmatologisk avdeling, og Nevrologisk avdeling, Rikshospitalet, Oslo.
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Alzghoul MB, Gerrard D, Watkins BA, Hannon K. Ectopic expression of IGF‐I and Shh by skeletal muscle inhibits disuse‐mediated skeletal muscle atrophy and bone osteopenia in vivo. FASEB J 2003; 18:221-3. [PMID: 14597562 DOI: 10.1096/fj.03-0293fje] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The loss of normal weight-bearing activity, which occurs during bed rest, limb immobilization, and spaceflight, stimulates a catabolic response within the musculoskeletal system, which results in a loss of skeletal muscle mass and bone mineral. The mechanism by which loading of muscle and bone is sensed and translated into signals controlling tissue formation remains a major question in the field of musculoskeletal research. In this investigation, we have examined the ability of two potentially anti-atrophic proteins, IGF-I and Shh, to inhibit disuse atrophy within muscle and bone, when electroporated into skeletal muscle. We have found that electroporation and ectopic expression of IGF-I and/or Shh within the gastrocnemius/soleus muscle significantly stimulated muscle fiber hypertrophy and increases in muscle size. In addition, we report that electroporation and ectopic expression of IGF-I and/or Shh within the gastrocnemius/soleus muscle attenuated the lost of muscle fiber area, muscle mass, and muscle mass density that normally occurs during disuse muscle atrophy. Finally, we found that ectopic expression of IGF-I and Shh within the gastrocnemius/soleus muscle inhibits parameters of osteopenia within the tibia and fibula associated with hindlimb unloading. These results support the theory that skeletal muscle can regulate bone maintenance and could offer potentially novel and efficient therapeutic options for attenuating muscle and bone atrophy during aging, illness and spaceflight.
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Sobue G. [Development of therapeutics for spinal and bulbar muscular atrophy (SBMA)]. Rinsho Shinkeigaku 2003; 43:909-11. [PMID: 15152501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Spinal and bulbar muscular atrophy (SBMA), also known as Kennedy's disease, is a hereditary motor neuron disease that affects males, caused by the expansion of a polyglutamine (polyQ) tract in androgen receptor (AR). Female carriers are usually asymptomatic. The transgenic mouse (Tg) model carrying a full-length human AR with expanded polyQ has significant gender-related motor impairment. This phenotype is inhibited by castration, which prevents nuclear translocation of mutant AR. Leuprorelin, an LHRH agonist that reduces testosterone release from the testis, also rescues motor dysfunction and nuclear accumulation of mutant AR in the male Tg. Over-expression of a molecular chaperone HSP70, which renatures misfolded mutant AR, ameliorates neuromuscular phenotypes of the Tg by reducing nuclear-localized mutant AR. HSP70 appears to enhance the degradation of mutant AR via ubiquitin-proteasome pathway. These experimental approaches indicate the possibility of clinical application of drugs, such as leuprorelin, for SBMA patients.
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Affiliation(s)
- Gen Sobue
- Department of Neurology, Nagoya University Graduate School of Medicine
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Sobue G. [Triplet repeat disease, with particular emphasis of spinal and bulbar muscular atrophy (SBMA)]. Rinsho Shinkeigaku 2000; 40:1193-5. [PMID: 11464455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Spinal and bulbar muscular atrophy (SBMA) is an X-linked neurodegenerative disease caused by the expansion of a CAG repeat in the first exon of the androgen receptor (AR) gene. To date, eight CAG-repeat diseases have been identified, including spinal and bulbar muscular atrophy (SBMA). Huntington's disease (HD), dentatorubralpallidoluysian atrophy (DRPLA) and five spinocerebellar ataxias (SCAs 1, 2, 3, 6, 7). These disorders likely share a common pathogenesis caused by the gain of a toxic function associated with the expanded polyglutamine tract. Several mechanisms have been postulated as a pathogenic process for neurodegeneration caused by the expanded polyglutamine tract. Processing of the polyglutamine containing proteins by proteases liberate truncated polyglutamine tract, which may cause neurodegeneration as demonstrated in transgenic mice and transfected cells. In addition to cellular toxicity, truncated and expanded polyglutamine tracts have been shown to form intranuclear inclusions (NI). The NIs formed by the disease protein are a common pathological feature of these diseases. In SBMA, NIs containing AR protein have been observed in regions of SBMA central nervous system susceptible to degenerations. Transcriptional factors or their cofactors, such as cerb or creb-binding protein (CBP) sequestrated in the NI may alter the major intracellular transcriptional signal transduction, and ultimately may result in neuronal degeneration. The ubiquitin-proteasome pathway may also contribute to the pathogenesis of CAG-repeat diseases. As for the therapeutic strategies, many possibilities have been demonstrated. Overexpression of Hsp70 and Hsp40 chaperones act together to protect a cultured neuronal cell model of SBMA from a cellular toxicity of expanded polyglutamine tract.
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Affiliation(s)
- G Sobue
- Department of Neurology, Nagoya University School of Medicine
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Fujiyama J, Aita T, Itoh K, Hamano T, Kumano T, Kinomoto K, Fujii A, Yasokawa T, Kuriyama M. [Lewis-Sumner syndrome presenting unilateral quadriceps amyotrophy as an initial symptom]. Rinsho Shinkeigaku 2000; 40:1126-9. [PMID: 11332195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
We report a 55-year-old man with a chief complaint of wasting and weakness of the left quadriceps muscle. At age 54, he noticed difficulty in running and weakness in the left thigh, which gradually progressed. On the first admission to our hospital, based on the nerve conduction studies (NCS), the muscle biopsy findings showing neurologenic changes, and no abnormality of spinal MRI, we diagnosed as unilateral quadriceps amyotrophy, which resulted from an atypical form of spinal progressive muscular atrophy. One year later, he showed the bilateral hand weakness, conduction blocks on the right median and ulnar nerves by NCS, and the presence of serum anti-GM 1 antibody. From these findings, Lewis-Sumner syndrome was diagnosed. The therapy of high-dose intravenous immunoglobulin moderately improved his symptoms. The clinical symptoms of quadriceps amyotrophy is produced by various disorders including spinal progressive muscular atrophy, spinal extradural arachnoid cyst, rimmed vacuole myopathy, Becker dystrophy, limb-girdle dystrophy, and focal myositis. However, there have been no reports of a case of Lewis-Sumner syndrome. It is important to consider Lewis-Sumner syndrome in the differential diagnosis of quadriceps amyotrophy.
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Affiliation(s)
- J Fujiyama
- Second Department of Internal Medicine, Fukui Medical University
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