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Katsura Y, Ohga S, Shimo K, Hattori T, Yamada T, Matsubara T. A decision tree algorithm to identify predictors of post-stroke complex regional pain syndrome. Sci Rep 2024; 14:9893. [PMID: 38689114 PMCID: PMC11061160 DOI: 10.1038/s41598-024-60597-3] [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: 06/07/2023] [Accepted: 04/25/2024] [Indexed: 05/02/2024] Open
Abstract
This prospective cohort study aimed to identify the risk factors for post-stroke complex regional pain syndrome (CRPS) using a decision tree algorithm while comprehensively assessing upper limb and lower limb disuse and physical inactivity. Upper limb disuse (Fugl-Meyer assessment of upper extremity [FMA-UE], Action Research Arm Test, Motor Activity Log), lower limb disuse (Fugl-Meyer Assessment of lower extremity [FMA-LE]), balance performance (Berg balance scale), and physical inactivity time (International Physical Activity Questionnaire-Short Form [IPAQ-SF]) of 195 stroke patients who visited the Kishiwada Rehabilitation Hospital were assessed at admission. The incidence of post-stroke CRPS was 15.4% in all stroke patients 3 months after admission. The IPAQ, FMA-UE, and FMA-LE were extracted as risk factors for post-stroke CRPS. According to the decision tree algorithm, the incidence of post-stroke CRPS was 1.5% in patients with a short physical inactivity time (IPAQ-SF < 635), while it increased to 84.6% in patients with a long inactivity time (IPAQ-SF ≥ 635) and severe disuse of upper and lower limbs (FMA-UE score < 19.5; FMA-LE score < 16.5). The incidence of post-stroke CRPS may increase with lower-limb disuse and physical inactivity, in addition to upper-limb disuse. Increasing physical activity and addressing lower- and upper-limb motor paralysis may reduce post-stroke CRPS.
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Affiliation(s)
- Yuichi Katsura
- Faculty of Rehabilitation, Kobe Gakuin University Graduate School, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan
- Department of Rehabilitation, Kishiwada Rehabilitation Hospital, 8-10, Kanmatsu-cho, Kishiwada-shi, Osaka, 596-0827, Japan
| | - Satoshi Ohga
- Faculty of Rehabilitation, Kobe Gakuin University, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan.
| | - Kazuhiro Shimo
- Faculty of Rehabilitation, Kobe Gakuin University, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan
| | - Takafumi Hattori
- Faculty of Rehabilitation, Kobe Gakuin University, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan
| | - Tsukasa Yamada
- Faculty of Rehabilitation, Kobe Gakuin University Graduate School, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan
- Department of Rehabilitation, Kishiwada Rehabilitation Hospital, 8-10, Kanmatsu-cho, Kishiwada-shi, Osaka, 596-0827, Japan
| | - Takako Matsubara
- Faculty of Rehabilitation, Kobe Gakuin University Graduate School, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan
- Faculty of Rehabilitation, Kobe Gakuin University, 518, Arise, Ikawadani-cho, Nishi-ku, Kobe, Hyogo, 651-2180, Japan
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Goldfarb AH, Kraemer RR, Baiamonte BA. Endogenous Opioids and Exercise-Related Hypoalgesia: Modern Models, Measurement, and Mechanisms of Action. ADVANCES IN NEUROBIOLOGY 2024; 35:137-155. [PMID: 38874722 DOI: 10.1007/978-3-031-45493-6_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
This chapter will focus on the role exercise appears to have on activation and modulating factors within the central nervous system related to endogenous like opioids and its possible contribution to exercise-induced hypoalgesia. The implications for the exercise-mediated alterations of CNS activation factors related to opioids, specifically endorphins and enkephalins, will be presented. In this update, we discuss utilization of new technology and methods to monitor mechanisms of opioid involvement to suggest their contribution with exercise mediated hypoalgesia as well as their relationships to alterations of perceptions of pain and mood. Several special populations were included to suggest that not all individuals will respond to the exercise by mediating hypoalgesia. Factors that may confound the current understanding and suggestions from the recent literature will be presented as well as suggestions for future investigations.
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Affiliation(s)
- Allan H Goldfarb
- University of North Carolina Greensboro, Department of Kinesiology, Greensboro, NC, USA.
| | - Robert R Kraemer
- Southeastern Louisiana University, Department of Kinesiology and Health Studies, Hammond, LA, USA
| | - Brandon A Baiamonte
- Southeastern Louisiana University, Department of Psychology, Hammond, LA, USA
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Shibata S, Tagashira H, Nemoto T, Kita S, Kita T, Shinoda Y, Akiyoshi K, Yamaura K, Iwamoto T. Perineural treatment with anti-TNF-α antibody ameliorates persistent allodynia and edema in novel mouse models with complex regional pain syndrome. J Pharmacol Sci 2023; 153:1-11. [PMID: 37524448 DOI: 10.1016/j.jphs.2023.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 08/02/2023] Open
Abstract
Complex regional pain syndrome (CRPS) is an intractable chronic pain syndrome with various signs and symptoms including allodynia/hyperalgesia, edema, swelling, and skin abnormalities. However, a definitive therapeutic treatment for CRPS has not been established. In CRPS patients, inflammatory cytokines such as TNF-α and IL-1β have been shown to increase in affected areas, suggesting that these molecules may be potential therapeutic targets for CRPS. Here, we first created a novel CRPS mouse model (CRPS-II-like) via sciatic nerve injury and cast immobilization, which was characterized by mechanical allodynia, local edema, and skin abnormalities, to evaluate the pathophysiology and pharmacotherapy of CRPS. When an anti-TNF-α antibody was consecutively administered near the injured sciatic nerve of CRPS model mice, persistent allodynia and CRPS-related signs in the ipsilateral hindpaw were markedly attenuated to control levels. Perineural administration of anti-TNF-α antibody also suppressed the upregulation of inflammatory cytokines as well as the activation of macrophages and Schwann cells in the injured sciatic nerve. These findings indicate that persistent allodynia and CRPS-related signs in CRPS models are primarily associated with TNF-α-mediated immune responses in injured peripheral nerves, suggesting that perineural treatment with anti-TNF-α antibody might be therapeutically useful.
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Affiliation(s)
- Shiho Shibata
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan; Department of Anesthesiology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Hideaki Tagashira
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Takayuki Nemoto
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
| | - Satomi Kita
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan; Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan
| | - Tomo Kita
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Yasuharu Shinoda
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Kouzaburo Akiyoshi
- Department of Anesthesiology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Ken Yamaura
- Department of Anesthesiology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan; Department of Anesthesiology & Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takahiro Iwamoto
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
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Katsura Y, Ohga S, Shimo K, Hattori T, Yamada T, Matsubara T. Post-Stroke Complex Regional Pain Syndrome and Upper Limb Inactivity in Hemiplegic Patients: A Cross-Sectional Study. J Pain Res 2022; 15:3255-3262. [PMID: 36281309 PMCID: PMC9587704 DOI: 10.2147/jpr.s379840] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose The purpose of this study was to investigate the prevalence of post-stroke complex regional pain syndrome (CRPS) and to examine the characteristics of inactivity status of the upper limb in post-stroke CRPS patients. In addition, as a sub-analysis, the association between the upper limb inactivity status and pain intensity was investigated in post-stroke CRPS patients. Patients and Methods This cross-sectional study included 102 patients with first-ever stroke between April 2019 and February 2020. Each patient was allocated into one of two groups based on the presence or absence of CRPS. Demographic data (age, sex, stroke etiology, lesion side, and number of days since stroke onset) were collected. The following evaluations were performed in all patients: Fugl-Meyer Assessment (FMA), Action Research Arm Test (ARAT), and Motor Activity Log (MAL). The numerical rating scale (NRS) to determine pain intensity was assessed only in patients with post-stroke CRPS. Results Nineteen and 83 patients were assigned to the post-stroke CRPS and control group, respectively. The prevalence of post-stroke CRPS was 18.6% (19/102). FMA, ARAT, and MAL scores were significantly lower in patients with post-stroke CRPS than those without it. FMA and ARAT scores were significantly correlated with NRS scores, but MAL was almost zero-scored in patients with post-stroke CRPS. Conclusion The study results indicated that activity status of the affected upper limb was severely deteriorated, and more inactivity of the upper limb was associated with higher pain intensity in patients with post-stroke CRPS. Thus, our results suggest that post-stroke CRPS may be influenced by the degree of upper limb inactivity after stroke.
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Affiliation(s)
- Yuichi Katsura
- Department of Rehabilitation, Kishiwada Rehabilitation Hospital, Kishiwada-shi, Osaka, 596-0827, Japan,Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, 651-2180, Japan,Correspondence: Yuichi Katsura, Department of Rehabilitation, Kishiwada Rehabilitation Hospital, 8-10, Kanmatsu-chou, Kishiwada-shi, Osaka, 596-0827, Japan, Tel +81-72-426-7777, Fax +81-72-426-7771, Email
| | - Satoshi Ohga
- Faculty of Rehabilitation, Kobe Gakuin University, Kobe, Hyogo, 651-2180, Japan
| | - Kazuhiro Shimo
- Faculty of Rehabilitation, Kobe Gakuin University, Kobe, Hyogo, 651-2180, Japan
| | - Takafumi Hattori
- Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, 651-2180, Japan
| | - Tsukasa Yamada
- Department of Rehabilitation, Kishiwada Rehabilitation Hospital, Kishiwada-shi, Osaka, 596-0827, Japan,Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, 651-2180, Japan
| | - Takako Matsubara
- Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, 651-2180, Japan,Faculty of Rehabilitation, Kobe Gakuin University, Kobe, Hyogo, 651-2180, Japan
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Kishikawa Y, Kawahara Y, Ohnishi YN, Sotogaku N, Koeda T, Kawahara H, Nishi A. Dysregulation of dopamine neurotransmission in the nucleus accumbens in immobilization-induced hypersensitivity. Front Pharmacol 2022; 13:988178. [PMID: 36160381 PMCID: PMC9493457 DOI: 10.3389/fphar.2022.988178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/26/2022] [Indexed: 12/03/2022] Open
Abstract
Cast immobilization causes sensory hypersensitivity, which is also a symptom of neuropathic pain and chronic pain. However, the mechanisms underlying immobilization-induced hypersensitivity remain unclear. The present study investigated the role of dopamine neurotransmission in the nucleus accumbens shell (NAcSh) of rats with cast immobilization-induced mechanical hypersensitivity using in vivo microdialysis. Cast immobilization of the hind limb decreased the paw withdrawal threshold (PWT). Mechanical stimulation of the cast-immobilized hind limb induced a decrease in dopamine in the NAcSh, and this decrease was associated with the upregulation of presynaptic D2-like receptors. A D2-like receptor antagonist infused into the NAcSh reversed the decrease in PWT in rats with cast immobilization, whereas a D2-like receptor agonist infused into the NAcSh induced a decrease in PWT in control rats. In addition, the expression of the D2 receptor (Drd2) mRNA in the NAcSh was increased by cast immobilization. Importantly, systemic administration of the D2-like receptor antagonist reversed the decrease in PWT in rats with cast immobilization. As dopamine levels regulated by presynaptic D2-like receptors did not correlate with the PWT, it is presumed that the D2-like receptor antagonist or agonist acts on postsynaptic D2-like receptors. These results suggest that immobilization-induced mechanical hypersensitivity is attributable to the upregulation of postsynaptic D2-like receptors in the NAc. Blockade of D2-like receptors in the NAcSh is a potential therapeutic strategy for immobilization-induced hypersensitivity.
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Affiliation(s)
- Yuki Kishikawa
- Department of Rehabilitation Sciences, Faculty of Rehabilitation Sciences, Nishikyushu University, Kanzaki, Japan
- Department of Pharmacology, Kurume University School of Medicine, Kurume, Japan
| | - Yukie Kawahara
- Department of Pharmacology, Kurume University School of Medicine, Kurume, Japan
- *Correspondence: Yukie Kawahara, ; Akinori Nishi,
| | | | - Naoki Sotogaku
- Department of Pharmacology, Kurume University School of Medicine, Kurume, Japan
| | - Tomoko Koeda
- Department of Physical Therapy, Faculty of Rehabilitation Sciences, Nagoya Gakuin University, Nagoya, Japan
| | - Hiroshi Kawahara
- Department of Dental Anesthesiology, Tsurumi University School of Dental Medicine, Yokohama, Japan
| | - Akinori Nishi
- Department of Pharmacology, Kurume University School of Medicine, Kurume, Japan
- *Correspondence: Yukie Kawahara, ; Akinori Nishi,
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Sakaguchi K, Taguchi N, Kobayashi R, Taguchi K, Okada K, Kinoshita F, Hibi H. Immediate curative effects of exercise therapy in patients with myalgia of the masticatory muscles. J Oral Rehabil 2022; 49:937-943. [PMID: 35801370 DOI: 10.1111/joor.13355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 05/05/2022] [Accepted: 07/01/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Exercise therapy is occasionally considered as an initial treatment for temporomandibular disorders. However, pain can be exacerbated during exercise therapy. OBJECTIVE To investigate the immediate curative effects of exercise therapy in patients with masticatory muscle myalgia. METHODS Fifty-nine patients with masticatory muscle myalgia were included. Therapists performed exercise therapy (stretched the painful masseter and/or cervical muscles along the direction of muscle contraction) in 10 rounds of traction, each lasting 10 seconds. The patient's pain-free maximum mouth opening distance and degree of pain (VAS value) before and immediately after exercise therapy were compared using the Wilcoxon signed rank test. Mann-Whitney U test was used for the subgroup comparisons. RESULTS Mouth opening increased from 41 (IQR 38-43) to 46 (IQR 43-48) mm, and pain alleviation from 48 (IQR 31-56) to 21 (IQR 10-56) immediately following exercise therapy (p < 0.001 for both). None of the patients experienced pain exacerbation or reduction in mouth opening post exercise. No difference in mouth opening distance changes according to sex, painful side, painful site, and therapist were observed (p > 0.05 for all). Pain reduction was greater in patients with unilateral pain (26, IQR 12-39) than those with bilateral (13, IQR 5-25) (p = 0.019). There were no differences in the change in the degree of pain according to sex, painful site, and therapist (p > 0.05 for all). CONCLUSION Exercise therapy immediately enlarged the mouth opening distance and reduced myalgia; therefore, it could be helpful in managing masticatory muscle myalgia.
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Affiliation(s)
- Kohei Sakaguchi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan.,Medical Corporation Taguchi Dental Clinic, Aichi, Japan
| | - Nozomu Taguchi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan.,Medical Corporation Taguchi Dental Clinic, Aichi, Japan
| | | | - Kei Taguchi
- Medical Corporation Taguchi Dental Clinic, Aichi, Japan
| | - Kei Okada
- Medical Corporation Taguchi Dental Clinic, Aichi, Japan
| | - Fumie Kinoshita
- Department of Advanced Medicine, Nagoya University Hospital, Aichi, Japan
| | - Hideharu Hibi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan
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Cucinello-Ragland JA, Mitchell-Cleveland R, Bradley Trimble W, Urbina AP, Yeh AY, Edwards KN, Molina PE, Simon Peter L, Edwards S. Alcohol amplifies cingulate cortex signaling and facilitates immobilization-induced hyperalgesia in female rats. Neurosci Lett 2021; 761:136119. [PMID: 34280506 PMCID: PMC8387454 DOI: 10.1016/j.neulet.2021.136119] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 07/14/2021] [Indexed: 12/28/2022]
Abstract
Complex Regional Pain Syndrome (CRPS) is a musculoskeletal pain condition that often develops after limb injury and/or immobilization. Although the exact mechanisms underlying CRPS are unknown, the syndrome is associated with central and autonomic nervous system dysregulation and peripheral hyperalgesia symptoms. These symptoms also manifest in alcoholic neuropathy, suggesting that the two conditions may be pathophysiologically accretive. Interestingly, people assigned female at birth (AFAB) appear to be more sensitive to both CRPS and alcoholic neuropathy. To better understand the biobehavioral mechanisms underlying these conditions, we investigated a model of combined CRPS and alcoholic neuropathy in female rats. Animals were pair-fed either a Lieber-DeCarli alcohol liquid diet or a control diet for ten weeks. CRPS was modeled via unilateral hind limb cast immobilization for seven days, allowing for the other limb to serve as a within-subject control for hyperalgesia measures. To investigate the role of circulating ovarian hormones on pain-related behaviors, half of the animals underwent ovariectomy (OVX). Using the von Frey procedure to record mechanical paw withdrawal thresholds, we found that cast immobilization and chronic alcohol drinking separately and additively produced mechanical hyperalgesia observed 3 days after cast removal. We then examined neuroadaptations in AMPA GluR1 and NMDA NR1 glutamate channel subunits, extracellular signal-regulated kinase (ERK), and cAMP response element-binding protein (CREB) in bilateral motor and cingulate cortex across all groups. Consistent with increased pain-related behavior, chronic alcohol drinking increased GluR1, NR1, ERK, and CREB phosphorylation in the cingulate cortex. OVX did not alter any of the observed effects. Our results suggest accretive relationships between CRPS and alcoholic neuropathy symptoms and point to novel therapeutic targets for these conditions.
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Affiliation(s)
- Jessica A Cucinello-Ragland
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States
| | | | - W Bradley Trimble
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Amy P Urbina
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Alice Y Yeh
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Kimberly N Edwards
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States
| | - Patricia E Molina
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States
| | - Liz Simon Peter
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States
| | - Scott Edwards
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Neuroscience Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States.
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Kawashima T, Ji RC, Itoh Y, Agata N, Sasai N, Murakami T, Sokabe M, Hamada F, Kawakami K. Morphological and biochemical changes of lymphatic vessels in the soleus muscle of mice after hindlimb unloading. Muscle Nerve 2021; 64:620-628. [PMID: 34409627 DOI: 10.1002/mus.27402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 08/11/2021] [Accepted: 08/15/2021] [Indexed: 11/07/2022]
Abstract
INTRODUCTION/AIMS Lymphatic vessels are responsible for the removal of metabolic waste from body tissues. They also play a crucial role in skeletal muscle functioning thorough their high-energy metabolism. In this study we investigated whether disuse muscle atrophy induced by hindlimb unloading is associated with an alteration in the number of lymphatic vessels and differential expression of lymphangiogenic factors in the soleus muscle. METHODS Male C57BL/6 mice were subjected to tail suspension (TS) for 2 or 4 weeks to induce soleus muscle atrophy. After TS, lymphatic and blood capillaries in the soleus muscle were visualized and counted by double staining with LYVE-1 and CD31. The protein and mRNA levels of vascular endothelial growth factor (VEGF)-C, VEGF-D, and vascular endothelial growth factor receptor-3 were measured by Western blotting and real-time reverse transcript polymerase chain reaction, respectively. RESULTS TS for 2 weeks resulted in a significant decrease in the number of blood capillaries compared with controls. However, there was no significant change in the number of lymphatic capillaries. By contrast, TS for 4 weeks resulted in a significant decrease in the number of lymphatic and blood capillaries. We observed a significant decrease in the mRNA levels of VEGF-C and VEGF-D in mice subjected to TS for 4 weeks. DISCUSSION The decrease of intramuscular lymphatic vessels may a crucial role in the process of muscle atrophy.
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Affiliation(s)
- Takafumi Kawashima
- Department of Human Anatomy, Graduate School of Medicine, Oita University, Yufu, Japan
| | - Rui-Cheng Ji
- Department of Physical Therapy, Graduate School of Medicine, Oita University, Oita, Japan
| | - Yuta Itoh
- Faculty of Rehabilitation Science, Nagoya Gakuin University, Nagoya, Japan
| | - Nobuhide Agata
- Faculty of Health and Medical Sciences, Tokoha University, Hamamatsu, Japan
| | - Nobuaki Sasai
- Department of Physical Therapy, Graduate School of Medical Science & Faculty of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Taro Murakami
- Faculty of Wellness, Shigakkan University, Ohbu, Japan
| | - Masahiro Sokabe
- Mechanobiology Laboratory, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fumihiko Hamada
- Department of Human Anatomy, Graduate School of Medicine, Oita University, Yufu, Japan
| | - Keisuke Kawakami
- Department of Physical Therapy, Graduate School of Medicine, Oita University, Oita, Japan
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Voluntary Forelimbs Exercise Reduces Immobilization-Induced Mechanical Hyperalgesia in the Rat Hind Paw. Pain Res Manag 2021; 2021:5592992. [PMID: 34401008 PMCID: PMC8364427 DOI: 10.1155/2021/5592992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 06/15/2021] [Accepted: 07/26/2021] [Indexed: 01/27/2023]
Abstract
Voluntary exercise is sufficient to protect against neuropathic pain. However, it is unclear whether voluntary exercise reduces immobilization-induced hyperalgesia. We examined the effect of voluntary forelimb exercise on immobilized-induced hyperalgesia in hind paws of rats. Wistar rats were randomly divided into the (1) both hind limbs immobilized group (IM group), (2) immobilization and exercise with nonimmobilized fore limbs group (EX group), and (3) control group. In the IM and EX groups, the bilateral ankle joints of each rat were immobilized in full plantar flexion with a plaster cast for eight weeks. In the EX group, voluntary exercise using nonimmobilized forelimbs in the running wheel was administered during the immobilization period, while hind limbs were kept immobilized (60 min/day, 5 days/week). Mechanical hyperalgesia in the hind paw was measured using a digital von Frey device every week. To investigate the abnormality of primary sensory neurons and central sensitization, the number of calcitonin gene-related peptide-positive cells in the dorsal root ganglion and the expression level of calcitonin gene-related peptide in the spinal dorsal horn were analyzed by immunohistochemical staining. Immobilization-induced mechanical hyperalgesia was inhibited in the EX group compared to the IM group at three weeks after immobilization. In the EX group, the number of calcitonin gene-related peptide-positive cells in the dorsal root ganglion and the expression level of calcitonin gene-related peptide were significantly decreased compared to those in the IM group. Our results therefore suggest that voluntary forelimb exercise during hind limb immobilization partially reduces immobilization-induced hyperalgesia by suppressing that the plastic changes of the primary sensory nerves that excessively transmit pain and increased responsiveness of nociceptive neurons in the spinal dorsal horn.
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Ota H, Takebe H, Mizumura K, Taguchi T. Responses of cutaneous C-fiber afferents and spinal microglia after hindlimb cast immobilization in rats. J Physiol Sci 2021; 71:19. [PMID: 34162322 PMCID: PMC10717157 DOI: 10.1186/s12576-021-00803-3] [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: 01/20/2021] [Accepted: 06/08/2021] [Indexed: 11/10/2022]
Abstract
Previous studies have shown that persistent limb immobilization using a cast increases nociceptive behavior to somatic stimuli in rats. However, the peripheral neural mechanisms of nociception remain unclear. Using single-fiber electrophysiological recordings in vitro, we examined the general characteristics of cutaneous C-fiber afferents in the saphenous nerve and their responsiveness to mechanical and heat stimuli in a rat model of immobilization-induced pain by subjecting the rats to hindlimb cast immobilization for 4 weeks. The mechanical response of C-fibers appeared to increase in the model; however, statistical analysis revealed that neither the response threshold nor the response magnitude was altered. The general characteristics and heat responses of the C-fibers were not altered. The number of microglia and cell diameters significantly increased in the superficial dorsal horn of the lumbar spinal cord. Thus, activated microglia-mediated spinal mechanisms are associated with the induction of nociceptive hypersensitivity in rats after persistent cast immobilization.
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Affiliation(s)
- Hiroki Ota
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan
- Institute for Human Movement and Medical Science, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan
| | - Haruna Takebe
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan
| | - Kazue Mizumura
- Department of Physiology, Nihon University School of Dentistry, 1-8-13 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8310, Japan
| | - Toru Taguchi
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan.
- Institute for Human Movement and Medical Science, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan.
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11
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Sasaki R, Sakamoto J, Kondo Y, Oga S, Takeshita I, Honda Y, Kataoka H, Origuchi T, Okita M. Effects of Cryotherapy Applied at Different Temperatures on Inflammatory Pain During the Acute Phase of Arthritis in Rats. Phys Ther 2021; 101:6039322. [PMID: 33351944 DOI: 10.1093/ptj/pzaa211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/21/2020] [Accepted: 11/03/2020] [Indexed: 11/14/2022]
Abstract
OBJECTIVE The biological mechanisms of cryotherapy for managing acute pain remain unclear. Additionally, it is unknown whether the effectiveness of cryotherapy depends on the applied temperature. This study aimed to clarify the biological effects of cryotherapy and to examine the therapeutic effects of cryotherapy applied at different temperatures in rats. METHODS This was an experimental study using a rat knee joint arthritis model. Thirty-five Wistar rats were randomly divided into arthritis (AR), arthritis with 5°C cryotherapy (CR-5), arthritis with 10°C cryotherapy (CR-10), and sham-arthritis control (CON) groups. Arthritis was induced by injecting a mixture of kaolin/carrageenan into the right knee joint. Cryotherapy was applied for 7 days starting the day after injection by immersing the right knee joint in 5°C or 10°C water. Joint transverse diameter, pressure pain threshold, and pain-related behaviors were assessed for 7 days. The number of CD68-positive cells in the knee joint and the expression of calcitonin gene-related peptide in the spinal dorsal horn 8 days after injection were analyzed by immunohistochemical staining. RESULTS Improvements in transverse diameter, pressure pain threshold, and pain-related behaviors were observed in the CR-5 and CR-10 groups on the 3rd day compared with the AR group. The number of CD68-positive cells and the expression of calcitonin gene-related peptide in the CR-5 and CR-10 groups were significantly decreased compared with the AR group. There were no significant differences in all results between the CR-5 and CR-10 groups. CONCLUSIONS Cryotherapy can ameliorate inflammatory pain through reduction of synovium and central sensitization. Additionally, the effects of cryotherapy lower than 10°C are observed independent of applied temperature. IMPACT Cryotherapy may be beneficial as a physical therapy modality for pain and swelling management in the acute phase of inflammation. Translational human study is needed to determine the effective cryotherapy temperature for the inflammatory pain.
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Affiliation(s)
- Ryo Sasaki
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Juzenkai Hospital, Nagasaki, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yasutaka Kondo
- Department of Rehabilitation, Japan Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan
| | - Satoshi Oga
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Japan Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan
| | - Idumi Takeshita
- Department of Rehabilitation, Faculty of Medicine, University of Miyazaki Hospital, Miyazaki, Japan
| | - Yuichiro Honda
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hideki Kataoka
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan
| | - Tomoki Origuchi
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Minoru Okita
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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12
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Doménech-García V, Palsson TS, Boudreau SA, Bellosta-López P, Herrero P, Graven-Nielsen T. Healthy Pain-Free Individuals with a History of Distal Radius Fracture Demonstrate an Expanded Distribution of Experimental Referred Pain Toward the Wrist. PAIN MEDICINE 2020; 21:2850-2862. [PMID: 33146396 DOI: 10.1093/pm/pnaa228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Nociception caused by injuries may sensitize central mechanisms causing expanded pain areas. After recovery, the status of such pain distribution and sensitivity mechanisms is unknown. The present study investigated whether individuals who have fully recovered from a distal radius fracture demonstrate increased pain sensitivity and expanded distribution of pressure-induced pain. DESIGN Cross-sectional single-blinded study. SETTING Clinical setting. SUBJECTS Twenty-three pain-free individuals with a history of painful distal radius fracture and 22 nonfractured, age/gender-matched controls participated in two experimental sessions (day 0, day 1) 24 hours apart. METHODS Pressure pain thresholds (PPTs) were recorded bilaterally at the extensor carpi radialis longus (ECRL), infraspinatus, and gastrocnemius muscles. Spatial distribution of pain was assessed following 60-second painful pressure stimulation at the ECRL (bilateral) and the infraspinatus muscles on the fractured or dominant side. Participants drew pain areas on a body map. After day 0 assessments, prolonged pain was induced by eccentric exercise of wrist extensors on the fractured/dominant side. RESULTS Compared with controls, pressure-induced ECRL pain in the fracture group referred more frequently toward the distal forearm (P < 0.005) on day 0. Both groups showed larger pain areas on day 1 compared with day 0 (P < 0.005), although the fracture group showed a larger relative change between days (P < 0.005). The fracture group showed larger pain areas on the fracture side compared with the contralateral side on both days (P < 0.005). CONCLUSIONS Prolonged pain and recovered prior painful injuries like fractures may sensitize pain mechanisms manifested as expanded pain distribution. Pressure-induced referred pain can be a simple pain biomarker for clinical use.
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Affiliation(s)
- Víctor Doménech-García
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark.,Universidad San Jorge, Campus Universitario, Villanueva de Gállego, Zaragoza, Spain
| | - Thorvalur S Palsson
- Department of Health Science and Technology, SMI, Faculty of Medicine, Aalborg University, Aalborg, Denmark
| | - Shellie A Boudreau
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark
| | - Pablo Bellosta-López
- Universidad San Jorge, Campus Universitario, Villanueva de Gállego, Zaragoza, Spain
| | - Pablo Herrero
- Universidad San Jorge, Campus Universitario, Villanueva de Gállego, Zaragoza, Spain
| | - Thomas Graven-Nielsen
- Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark
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13
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Oga S, Goto K, Sakamoto J, Honda Y, Sasaki R, Ishikawa K, Kataoka H, Nakano J, Origuchi T, Okita M. Mechanisms underlying immobilization-induced muscle pain in rats. Muscle Nerve 2020; 61:662-670. [PMID: 32083755 DOI: 10.1002/mus.26840] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 12/01/2019] [Accepted: 12/03/2019] [Indexed: 12/27/2022]
Abstract
INTRODUCTION We investigated the mechanisms underlying immobilization-induced muscle pain in rats. METHODS In rat skeletal muscle, pressure pain threshold (PPT) of the gastrocnemius muscle was measured, and nerve growth factor (NGF) level, peripheral nerve fiber density, macrophage number, and interleukin-1β (IL-1β) mRNA expression were examined. An NGF receptor inhibitor was injected intramuscularly to assess the relationship between PPT and NGF levels. RESULTS Immobilization resulted in a decrease in PPT and increases in NGF level, C-fiber density, M1 macrophage number, and IL-1β mRNA expression. Injection of NGF receptor inhibitor reversed the decrease in PPT. DISCUSSION NGF upregulation may be a major contributor to immobilization-induced muscle pain. The increases in C-fiber density, M1 macrophage number, and IL-1β mRNA expression may be related to immobilization-induced muscle pain.
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Affiliation(s)
- Satoshi Oga
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Japanese Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan
| | - Kyo Goto
- Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuichiro Honda
- Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Japan
| | - Ryo Sasaki
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Juzenkai Hospital, Nagasaki, Japan
| | - Kumiko Ishikawa
- Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Japan
| | - Hideki Kataoka
- Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan
| | - Jiro Nakano
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomoki Origuchi
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Minoru Okita
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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14
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Duarte FCK, Kolberg C, Riffel APK, Souza JA, Belló-Klein A, Partata WA. Spinal Manipulation Therapy Improves Tactile Allodynia and Peripheral Nerve Functionality and Modulates Blood Oxidative Stress Markers in Rats Exposed to Knee-Joint Immobilization. J Manipulative Physiol Ther 2019; 42:385-398. [PMID: 31371096 DOI: 10.1016/j.jmpt.2018.11.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 06/13/2018] [Accepted: 11/28/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVE The purpose of our study was to evaluate the effect of manually assisted lumbar spinal manipulation therapy on tactile allodynia, peripheral nerve functional recovery, and oxidative markers in rats exposed to knee immobilization-inducing hypersensitivity. METHODS Tactile allodynia and sciatic, tibial, and peroneal functional indices were assessed before the knee joint immobilization, 24 hours after the knee cast removal, and 24 hours after 3 weeks of lumbar therapy with the Activator Adjusting Instrument, model 4 (AAI 4). Subsequently, the blood was collected from each rat, and oxidative markers such as lipid hydroperoxide levels; nitric oxide metabolites; and superoxide dismutase, catalase, and glutathione peroxidase activities were assessed. RESULTS The AAI 4 improved the immobilization-induced allodynia and recovered the peripheral nerve functional indices impaired after knee immobilization. Immobilized rats treated with AAI 4 therapy presented a lack of significant changes in lipid hydroperoxides and nitric oxide metabolites in the plasma contrasting with rats that were kept freely in their cages, with no therapy applied, which presented elevated lipid hydroperoxides levels. Also, the antioxidant catalase enzymatic activity decreased in the blood of rats immobilized and treated with AAI 4. CONCLUSION These results suggest that manually assisted lumbar spinal manipulation therapy modulates systemic oxidative stress, which possibly contributes to the analgesia and recovery of peripheral nerve functionality.
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Affiliation(s)
- Felipe C K Duarte
- Department of Life Sciences, Canadian Memorial Chiropractic College, Toronto, Ontario, Canada; Department of Physiology, Institute of Basic Health Science, Federal University of Rio Grande do Sul/UFRGS, Porto Alegre, RS, Brazil.
| | - Carolina Kolberg
- Department of Physiology, Institute of Basic Health Science, Federal University of Rio Grande do Sul/UFRGS, Porto Alegre, RS, Brazil; America Latina College, Caxias do Sul, RS, Brazil
| | - Ana Paula K Riffel
- Department of Physiology, Institute of Basic Health Science, Federal University of Rio Grande do Sul/UFRGS, Porto Alegre, RS, Brazil
| | - Jessica A Souza
- Department of Physiology, Institute of Basic Health Science, Federal University of Rio Grande do Sul/UFRGS, Porto Alegre, RS, Brazil
| | - Adriane Belló-Klein
- Department of Physiology, Institute of Basic Health Science, Federal University of Rio Grande do Sul/UFRGS, Porto Alegre, RS, Brazil
| | - Wania A Partata
- Department of Physiology, Institute of Basic Health Science, Federal University of Rio Grande do Sul/UFRGS, Porto Alegre, RS, Brazil
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15
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Ishikawa K, Kajiwara Y, Sakamoto J, Sasaki R, Goto K, Honda Y, Kataoka H, Okita M. Low-intensity muscle contraction exercise following the onset of arthritis improves hyperalgesia via reduction of joint inflammation and central sensitization in the spinal cord in a rat model. Neurosci Lett 2019; 706:18-23. [PMID: 31026533 DOI: 10.1016/j.neulet.2019.04.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/11/2019] [Accepted: 04/14/2019] [Indexed: 01/21/2023]
Abstract
We examined the effect of immobilization, low-intensity muscle contraction exercise, and transcutaneous electrical nerve stimulation (TENS) on tissue inflammation and acute pain following the onset of arthritis in a rat model. Sixty Wistar rats were divided into five groups: (1) Arthritis group, (2) arthritis and immobilization (Immobilization group), (3) arthritis and low intensity muscle contraction (Exercise group), (4) arthritis and TENS (TENS group), and (5) sham arthritis (Sham group). Arthritis was induced in the right knee joints by single injection of 3% kaolin and carrageenan. Immobilization of the right hindlimb was conducted by full extension of the right knee joints and full plantar flexion of the ankle joints using a plaster cast for 7 days after injection. The right quadriceps muscles were subjected to electrical stimulation (frequency: 50 Hz; intensity: 2-3 mA) for 20 min/day as contraction exercise for one week. TENS was delivered at 20 min/day for one week (frequency: 50 Hz; intensity: 1 mA). The pressure pain threshold (PPT) and paw withdrawal response (PWR) were evaluated at 1 and 7 days after injection. We also analyzed the number of CD68-positive cells in the synovium by immunohistochemistry and determined the expression level of calcitonin gene-related peptide (CGRP) in the spinal dorsal horn with immunofluorescence. Improvements of both PPT and PWR were observed in the Exercise group at 7 days after injection compared to those of the Arthritis and Immobilization groups, although only improvement of PPT was observed in the TENS group. The number of CD68-positive cells in the synovium and CGRP expression in the dorsal horn decreased only in the Exercise group. These results suggested that low-intensity muscle contraction exercise might be a better treatment for reduction of arthritis-induced inflammation and acute pain compared to immobilization and TENS.
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Affiliation(s)
- Kumiko Ishikawa
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan
| | - Yasuhiro Kajiwara
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan.
| | - Ryo Sasaki
- Department of Rehabilitation, Juzenkai Hospital, Kago 7-18, Nagasaki, 850-0905, Japan; Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan
| | - Kyo Goto
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan; Department of Rehabilitation, Nagasaki Memorial Hospital, Fukahori 1-11-5, Nagasaki, 851-0301, Japan
| | - Yuichiro Honda
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan; Department of Rehabilitation, Nagasaki University Hospital, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan
| | - Hideki Kataoka
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan; Department of Rehabilitation, Nagasaki Memorial Hospital, Fukahori 1-11-5, Nagasaki, 851-0301, Japan
| | - Minoru Okita
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan; Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto 1-7-1, Nagasaki, 852-8520, Japan
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16
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Nakagawa T, Hiraga SI, Mizumura K, Hori K, Ozaki N, Koeda T. Topical thermal therapy with hot packs suppresses physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF. J Physiol Sci 2018; 68:629-637. [PMID: 29027134 PMCID: PMC10717048 DOI: 10.1007/s12576-017-0574-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
Abstract
We focused on the analgesic effect of hot packs for mechanical hyperalgesia in physically inactive rats. Male Wistar rats were randomly divided into four groups: control, physical inactivity (PI), PI + sham treatment (PI + sham), and PI + hot pack treatment (PI + hot pack) groups. Physical inactivity rats wore casts on both hind limbs in full plantar flexed position for 4 weeks. Hot pack treatment was performed for 20 min a day, 5 days a week. Although mechanical hyperalgesia and the up-regulation of NGF in the plantar skin and gastrocnemius muscle were observed in the PI and the PI + sham groups, these changes were significantly suppressed in the PI + hot pack group. The present results clearly demonstrated that hot pack treatment was effective in reducing physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF in plantar skin and gastrocnemius muscle.
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Affiliation(s)
- Tatsuki Nakagawa
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan
| | - Shin-Ichiro Hiraga
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan
| | - Kazue Mizumura
- Department of Physical Therapy, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Japan
| | - Kiyomi Hori
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Noriyuki Ozaki
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Tomoko Koeda
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan.
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17
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Intraarticularly-Injected Mesenchymal Stem Cells Stimulate Anti-Inflammatory Molecules and Inhibit Pain Related Protein and Chondrolytic Enzymes in a Monoiodoacetate-Induced Rat Arthritis Model. Int J Mol Sci 2018; 19:ijms19010203. [PMID: 29315262 PMCID: PMC5796152 DOI: 10.3390/ijms19010203] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/02/2018] [Accepted: 01/02/2018] [Indexed: 12/25/2022] Open
Abstract
Persistent inflammation is well known to promote the progression of arthropathy. mesenchymal stem cells (MSCs) have been shown to possess anti-inflammatory properties and tissue differentiation potency. Although the experience so far with the intraarticular administration of mesenchymal stem cell (MSC) to induce cartilage regeneration has been disappointing, MSC implantation is now being attempted using various surgical techniques. Meanwhile, prevention of osteoarthritis (OA) progression and pain control remain important components of the treatment of early-stage OA. We prepared a shoulder arthritis model by injecting monoiodoacetate (MIA) into a rat shoulder, and then investigated the intraarticular administration of MSC from the aspects of the cartilage protective effect associated with their anti-inflammatory property and inhibitory effect on central sensitization of pain. When MIA was administered in this rat shoulder arthritis model, anti-Calcitonin Gene Related Peptide (CGRP) was expressed in the joint and C5 spinal dorsal horn. Moreover, expression of A disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5), a marker of joint cartilage injury, was similarly elevated following MIA administration. When MSC were injected intraarticularly after MIA, the expression of CGRP in the spinal dorsal horn was significantly deceased, indicating suppression of the central sensitization of pain. The expression of ADAMTS 5 in joint cartilage was also significantly inhibited by MSC administration. In contrast, a significant increase in the expression of TNF-α stimulated gene/protein 6 (TSG-6), an anti-inflammatory and cartilage protective factor shown to be produced and secreted by MSC intraarticularly, was found to extend to the cartilage tissue following MSC administration. In this way, the intraarticular injection of MSC inhibited the central sensitization of pain and increased the expression of the anti-inflammatory and cartilage protective factor TSG-6. As the least invasive conservative strategies possible are desirable in the actual clinical setting, the intraarticular administration of MSC, which appears to be effective for the treatment of pain and cartilage protection in early-stage arthritis, may achieve these aims.
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18
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Sole vibration improves locomotion through the recovery of joint movements in a mouse cast model. PLoS One 2017; 12:e0186189. [PMID: 29040289 PMCID: PMC5645094 DOI: 10.1371/journal.pone.0186189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 09/27/2017] [Indexed: 11/19/2022] Open
Abstract
We investigated the effects of a vibratory stimulus on the plantar surface of the hind limb for motor, sensory, and locomotive function using a mouse cast model. The right knee joint of C57BL/6 male mice (7 weeks, 20 g, n = 31) was flexed with aluminum splint and tape for 6 weeks. These mice were randomly divided into 2 groups (control group, n = 11 and vibration group, n = 12). The mice in the vibration group received vibration on the sole of the ankle for 15 minutes per day, 5 days per week. After the knee joint cast was removed, we measured the range of motion (ROM) of both knee and ankle joints and the sensory threshold of the sole. Further, both walking and swimming movements were analyzed with a digital video. The sole vibration did not affect the passive ROM of the knee joint and sensory threshold after cast removal. However, it increased the ankle dorsiflexion range and improved free walking, swimming, and active movement of the knee joint. In conclusion, we show that the vibration recovered both walking and swimming movements, which resulted from improvements in both the passive ankle dorsiflexion and active knee movement.
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Aihara K, Ono T, Umei N, Tsumiyama W, Tasaka A, Ishikura H, Sato Y, Matsumoto T, Oki S. A study of the relationships of changes in pain and gait after tourniquet-induced ischemia-reperfusion in rats. J Phys Ther Sci 2017; 29:98-101. [PMID: 28210050 PMCID: PMC5300816 DOI: 10.1589/jpts.29.98] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 10/11/2016] [Indexed: 11/26/2022] Open
Abstract
[Purpose] The purpose of this study was to determine the relationships of changes in pain
and gait after ischemia reperfusion was induced by tourniquet in rats. [Subjects and
Methods] The subjects were six ten-week-old male Wistar rats. Ischemia was induced in the
left lower limbs of the experimental rats at a pressure of 300 mmHg for 90 minutes. Pain
behavior evaluations were measured using the von Frey test in all the rats’ hind limbs. A
consistently increasing plantar stimulus was applied until the rats exhibited an escape
behavior. For the evaluation of gait, a two-dimensional motion analysis system was used to
measure the distance from the calcaneus to the floor (DCF) and toe extension angle (TEA)
during gait. The evaluations were performed in the normal state, 3 hours after
ischemia-reperfusion, and daily until 7 days after ischemia-reperfusion. [Results]
Compared with the normal state, the means of the pain threshold showed a significant
decrease until 4 days after ischemia. In addition, both TEA and DCF continued to show a
significant decrease at 7 days after ischemia as compared with the normal state.
[Conclusion] This study revealed that hyperalgesia occurs after ischemia-reperfusion, and
recovery of hyperalgesia occurred earlier than gait dysfunction recovery.
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Affiliation(s)
- Kazuki Aihara
- Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan
| | - Takeya Ono
- Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan; Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan
| | - Namiko Umei
- Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan
| | - Wakako Tsumiyama
- Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan
| | - Atsushi Tasaka
- Department of Rehabilitation Science, Osaka Health Science University, Japan
| | - Hideki Ishikura
- Department of Rehabilitation, Physical Therapist, Faculty of Health Sciences, Hiroshima Cosmopolitan University, Japan
| | - Yuta Sato
- Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan
| | - Tomohiro Matsumoto
- Department of Rehabilitation Science, Kobe University Graduate School of Health Science, Japan
| | - Sadaaki Oki
- Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan; Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan
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20
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Imai R, Osumi M, Ishigaki T, Morioka S. Effect of illusory kinesthesia on hand function in patients with distal radius fractures: a quasi-randomized controlled study. Clin Rehabil 2017; 31:696-701. [PMID: 28074671 DOI: 10.1177/0269215516688048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES We investigated the effects of the illusion of motion through tendon vibration on hand function in patients with distal radius fractures. SETTING Kawachi General Hospital, Japan. SUBJECTS A total of 22 patients with distal radius fractures were divided into either an illusory kinesthesia group ( n = 11) or a control group ( n = 11). INTERVENTION We performed the intervention for seven consecutive days after surgery. Evaluations were performed at one day, seven days, one month, and two months postsurgery. MAIN MEASURES Data were collected on pain at rest and pain during movement. The Patient-Rated Wrist Evaluation and Pain Catastrophizing Scale were also used. RESULTS The illusory kinesthesia group showed significantly better scores on Patient-Rated Wrist Evaluation ( p < 0.01) compared with the control group at seven days, one month, and two months postsurgery. The mean (SD) of the Patient-Rated Wrist Evaluation total score was 97.6 (2.2) at one day postsurgery and 9.1 (5.3) at seven days postsurgery in the illusory kinesthesia group, while the Patient-Rated Wrist Evaluation total score was 96.3 (4.4) at one day postsurgery and 20.1 (17.0) at seven days postsurgery in the control group. CONCLUSION Our results indicate that illusory kinesthesia is an effective postsurgery management strategy not only for pain alleviation, but also hand function in patients with distal radius fractures. Furthermore, the significant improvements persisted for up to two months after intervention in the illusory kinesthesia group, but not in the control group. In addition, patients in the kinesthetic illusions group showed increased use of the affected limb in daily living.
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Affiliation(s)
- Ryota Imai
- 1 Department of Neurorehabilitation, Kio University, Nara, Japan.,2 Department of Rehabilitation, Kawachi General Hospital, Osaka, Japan
| | - Michihiro Osumi
- 3 Neuro Rehabilitation Research Center, Kio University, Nara, Japan
| | - Tomoya Ishigaki
- 1 Department of Neurorehabilitation, Kio University, Nara, Japan
| | - Shu Morioka
- 1 Department of Neurorehabilitation, Kio University, Nara, Japan.,3 Neuro Rehabilitation Research Center, Kio University, Nara, Japan
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21
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NAKABAYASHI K, SAKAMOTO J, KATAOKA H, KONDO Y, HAMAUE Y, HONDA Y, NAKANO J, OKITA M. Effect of Continuous Passive Motion Initiated After the Onset of Arthritis on Inflammation and Secondary Hyperalgesia in Rats. Physiol Res 2016; 65:683-691. [DOI: 10.33549/physiolres.933214] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
This study investigated the effect of continuous passive motion (CPM) initiated after the onset of arthritis in rats. Rats were injected with 3 % kaolin/carrageenan in the knee joint and randomized to the control, immobilization (IM), or CPM group. The knee joints of the IM and CPM groups were immobilized with a cast for 56 days. In the CPM group, CPM exercise was administered for 60 min/day (6 times/week). Joint transverse diameter and pressure pain threshold (PPT) were assessed as indicators of inflammation, and paw withdrawal response (PWR) was assessed as indicator of secondary hyperalgesia. Central sensitization was analyzed by measuring calcitonin gene-related peptide (CGRP) expression levels in the spinal dorsal horn. In the CPM group, the PPT was significantly increased compared with the IM group from 14 to 35 days, and PWR was significantly decreased from 14 to 56 days. Additionally, CGRP expression in the super facial layer (I-II) of the spinal dorsal horn (L4-5) in the CPM group was significantly decreased compared with the IM group. Our study found the CPM initiated after the onset of arthritis promoted the recovery of inflammation and mitigated secondary hyperalgesia
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Affiliation(s)
| | - J. SAKAMOTO
- Department of Physical Therapy Science, Unit of Physical and Occupational Therapy Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Effects of Vibration Therapy on Immobilization-Induced Hypersensitivity in Rats. Phys Ther 2015; 95:1015-26. [PMID: 25655883 DOI: 10.2522/ptj.20140137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 01/28/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND Cast immobilization induces mechanical hypersensitivity, which disturbs rehabilitation. Although vibration therapy can reduce various types of pain, whether vibration reduces immobilization-induced hypersensitivity remains unclear. OBJECTIVE The purpose of this study was to investigate the preventive and therapeutic effects of vibration therapy on immobilization-induced hypersensitivity. DESIGN The experimental design of the study involved conducting behavioral, histological, and immunohistochemical studies in model rats. METHODS Thirty-five Wistar rats (8 weeks old, all male) were used. The right ankle joints of 30 rats were immobilized by plaster cast for 8 weeks, and 5 rats were used as controls. The immobilized rats were divided randomly into the following 3 groups: (1) immobilization-only group (Im, n=10); (2) vibration therapy group 1, for which vibration therapy was initiated immediately after the onset of immobilization (Im+Vib1, n=10); and (3) vibration therapy group 2, for which vibration therapy was initiated 4 weeks after the onset of immobilization (Im+Vib2, n=10). Vibration was applied to the hind paw. The mechanical hypersensitivity and epidermal thickness of the hind paw skin were measured. To investigate central sensitization, calcitonin gene-related peptide (CGRP) expression in the spinal cord and dorsal root ganglion (DRG) was analyzed. RESULTS Immobilization-induced hypersensitivity was inhibited in the Im+Vib1 group but not in the Im+Vib2 group. Central sensitization, which was indicated by increases in CGRP expression in the spinal cord and the size of the area of CGRP-positive neurons in the DRG, was inhibited in only the Im+Vib1 group. Epidermal thickness was not affected by vibration stimulation. LIMITATIONS A limitation of this study is that the results were limited to an animal model and cannot be generalized to humans. CONCLUSIONS The data suggest that initiation of vibration therapy in the early phase of immobilization may inhibit the development of immobilization-induced hypersensitivity.
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Carcamo CR. Bimodal Modulation of Ipsilateral Spinal-Coeruleo-Spinal Pathway in CRPS: A Novel Model for Explaining Different Clinical Features of the Syndrome. PAIN MEDICINE 2015; 16:1589-96. [PMID: 26058872 DOI: 10.1111/pme.12733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The objective is to present a hypothesis to explain the sensory, autonomic, and motor disturbances associated with complex regional pain syndrome (CRPS) syndrome. METHODS The author reviewed the available and relevant literature, which was supplemented with research on experimental animal models, with a focus on how they may translate into humans, particularly in areas about pathophysiologic mechanisms of CRPS. RESULTS We propose that different CRPS subtypes may result from facilitative or inhibitory influences exerted by the spinal-coeruleo-spinal pathway in three sites at the spinal cord: the dorsal horn (DH), intermediolateral cell column (IML) and ventral horn (VH). A facilitatory influence over DH may have a pronociceptive effect that explains exacerbated pain, sensory disturbances, and spreading sensitization and neuroinflammation. Conversely, a facilitatory influence over preganglionic neurons located in IML cell column may increase sympathetic outflow with peripheral vasoconstriction, which leads to cold skin, ipsilateral limb ischaemia, and sympathetically maintained pain (SMP). For patients presenting with these symptoms, a descending inhibitory influence would be predicted to result in decreased sympathetic outflow and warm skin, as well as impairment of peripheral vasoconstrictor reflexes. Finally, a descending inhibitory influence over VH could explain muscle weakness and decreased active range of motion, while also facilitating motor reflexes, tremor and dystonia. CONCLUSIONS The proposed model provides a mechanistically based diagnostic scheme for classifying and explaining the sensory, autonomic and motor disturbances associated with CRPS syndrome.
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Affiliation(s)
- Cesar R Carcamo
- Chronic Pain Unit, Mutual de Seguridad Hospital, Santiago, Chile
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Hyperalgesia in an immobilized rat hindlimb: effect of treadmill exercise using non-immobilized limbs. Neurosci Lett 2014; 584:66-70. [PMID: 25304541 DOI: 10.1016/j.neulet.2014.09.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Revised: 09/21/2014] [Accepted: 09/29/2014] [Indexed: 12/30/2022]
Abstract
Cast immobilization of limbs causes hyperalgesia, which is a decline of the threshold of mechanical and thermal mechanical stimuli. The immobilization-induced hyperalgesia (IIH) can disturb rehabilitation and activities of daily living in patients with orthopedic disorders. However, it is unclear what therapeutic and preventive approaches can be used to alleviate IIH. Exercise that activates the descending pain modulatory system may be effective for IIH. The purpose of this study was to investigate the effects of treadmill exercise during the immobilization period, using the non-immobilized limbs, on IIH. Thirty-six 8-week-old Wistar rats were randomly divided into (1) control, (2) immobilization (Im), and (3) immobilization and treadmill exercise (Im+Ex) groups. In the Im and Im+Ex groups, the right ankle joints of each rat were immobilized in full plantar flexion with a plaster cast for an 8-week period. In the Im+Ex group, treadmill exercise (15 m/min, 30 min/day, 5 days/week) was administered during the immobilization period while the right hindlimb was kept immobilized. Mechanical hyperalgesia was measured using von Frey filaments every week. To investigate possible activation of the descending pain modulatory system, beta-endorphin expression levels in hypothalamus and midbrain periaqueductal gray were analyzed. Although IIH clearly occurred in the Im group, the hyperalgesia was partially but significantly reduced in the Im+Ex group. Beta-endorphin, which is one of the endogenous opioids, was selectively increased in the hypothalamus and midbrain periaqueductal gray of the Im+Ex group. Our data suggest that treadmill running using the non-immobilized limbs reduces the amount of hyperalgesia induced in the immobilized limb even if it is not freed. This ameliorating effect might be due to the descending pain modulatory system being activated by upregulation of beta-endorphin in the brain.
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Sekino Y, Nakano J, Hamaue Y, Chuganji S, Sakamoto J, Yoshimura T, Origuchi T, Okita M. Sensory hyperinnervation and increase in NGF, TRPV1 and P2X3expression in the epidermis following cast immobilization in rats. Eur J Pain 2013; 18:639-48. [DOI: 10.1002/j.1532-2149.2013.00412.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Y. Sekino
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Japan
| | - J. Nakano
- Department of Physical Therapy Science; Unit of Physical and Occupational Therapy Sciences; Nagasaki University Graduate School of Biochemical Sciences; Japan
| | - Y. Hamaue
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Japan
| | - S. Chuganji
- Department of Physical Therapy Science; Unit of Physical and Occupational Therapy Sciences; Nagasaki University Graduate School of Biochemical Sciences; Japan
| | - J. Sakamoto
- Department of Rehabilitation; Nagasaki University Hospital; Japan
| | - T. Yoshimura
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Japan
| | - T. Origuchi
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Japan
| | - M. Okita
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Japan
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