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Otsuka S, Matsuzaki R, Kakimoto S, Tachibe Y, Kawatani T, Takada S, Tani A, Nakanishi K, Matsuoka T, Kato Y, Inadome M, Nojima N, Sakakima H, Mizuno K, Matsubara Y, Maruyama I. Ninjin'yoeito reduces fatigue-like conditions by alleviating inflammation of the brain and skeletal muscles in aging mice. PLoS One 2024; 19:e0303833. [PMID: 38768175 DOI: 10.1371/journal.pone.0303833] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024] Open
Abstract
Fatigue can lead to several health issues and is particularly prevalent among elderly individuals with chronic inflammatory conditions. Ninjin'yoeito, a traditional Japanese herbal medicine, is used to address fatigue and malaise, anorexia, and anemia. This study aimed to examine whether relieving inflammation in the brain and skeletal muscle of senescence-accelerated mice prone 8 (SAMP8) could reduce fatigue-like conditions associated with aging. First, SAMP8 mice were divided into two groups, with and without ninjin'yoeito treatment. The ninjin'yoeito-treated group received a diet containing 3% ninjin'yoeito for a period of 4 months starting at 3 months of age. At 7 months of age, all mice underwent motor function, treadmill fatigue, and behavioral tests. They were then euthanized and the skeletal muscle weight, muscle cross-sectional area, and concentration of interleukin (IL)-1β and IL-1 receptor antagonist (IL-1RA) in both the brain and skeletal muscle were measured. The results showed that the ninjin'yoeito-treated group had higher motor function and spontaneous locomotor activity than the untreated group did and ran for significantly longer in the treadmill fatigue test. Moreover, larger muscle cross-sectional area, lower IL-1β concentrations, and higher IL-1RA concentrations were observed in both the brain and skeletal muscle tissues of the ninjin'yoeito-treated group than in the untreated group. The results suggest that ninjin'yoeito improves age-related inflammatory conditions in both the central and peripheral tissues and reduces fatigue.
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Affiliation(s)
- Shotaro Otsuka
- Faculty of Welfare and Health Science, Oita University, Oita, Japan
| | - Ryoma Matsuzaki
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Shogo Kakimoto
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Yuta Tachibe
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Takuya Kawatani
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Seiya Takada
- Department of Orthopedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Akira Tani
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazuki Nakanishi
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Teruki Matsuoka
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Yuki Kato
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaki Inadome
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Nao Nojima
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Harutoshi Sakakima
- Faculty of Medicine, Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Keita Mizuno
- Kampo Research & Development Division, Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - Yosuke Matsubara
- Kampo Research & Development Division, Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - Ikuro Maruyama
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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Otsuka S, Kikuchi K, Takeshita Y, Takada S, Tani A, Sakakima H, Maruyama I, Makizako H. Relationship between physical activity and cerebral white matter hyperintensity volumes in older adults with depressive symptoms and mild memory impairment: a cross-sectional study. Front Aging Neurosci 2024; 16:1337397. [PMID: 38414630 PMCID: PMC10896982 DOI: 10.3389/fnagi.2024.1337397] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/24/2024] [Indexed: 02/29/2024] Open
Abstract
Introduction Cerebral white matter hyperintensities (WMHs) are commonly found in the aging brain and have been implicated in the initiation and severity of many central nervous system diseases. Furthermore, an increased WMH volume indicates reduced brain health in older adults. This study investigated the association between WMH volume and physical activity in older adults with depressive symptoms (DS) and mild memory impairment (MMI). Factors associated with the WMH volume were also investigated. Methods A total of 57 individuals aged over 65 years with DS and MMI were included in this study. The participants underwent magnetic resonance imaging to quantify WMH volumes. After WMH volume was accumulated, normalized to the total intracranial volume (TIV), the percentage of WMH volume was calculated. In addition, all participants wore a triaxial accelerometer for 2 weeks, and the average daily physical activity and number of steps were measured. The levels of blood biomarkers including cortisol, interleukin-6 (IL-6), brain-derived insulin-like growth factor-1, and brain-derived neurotrophic factor were measured. Motor and cognitive functions were also assessed. Results Faster maximum walking speed and longer time spent engaged in moderate physical activity were associated with a smaller percent of WMH volume, whereas higher serum IL-6 levels were associated with a larger percent of WMH volume. The number of steps per day, time spent engaged in low levels of physical activity, cognitive function, and all other measured biomarkers were not significantly associated with percent of WMH volume. Discussion Higher blood inflammatory cytokine levels, shorter duration of moderate physical activity, and lower maximum walking speed were associated with a higher percent of WMH volume. Our results provide useful information for maintaining brain health in older adults at a high risk of developing dementia and may contribute to the development of preventive medicine for brain health.
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Affiliation(s)
- Shotaro Otsuka
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan
| | - Yasufumi Takeshita
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Seiya Takada
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Ikuro Maruyama
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hyuma Makizako
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
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Kikuchi K, Otsuka S, Takada S, Nakanishi K, Setoyama K, Sakakima H, Tanaka E, Maruyama I. 1,5-anhydro-D-fructose induces anti-aging effects on aging-associated brain diseases by increasing 5'-adenosine monophosphate-activated protein kinase activity via the peroxisome proliferator-activated receptor-γ co-activator-1α/brain-derived neurotrophic factor pathway. Aging (Albany NY) 2023; 15:11740-11763. [PMID: 37950725 PMCID: PMC10683599 DOI: 10.18632/aging.205228] [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: 12/05/2022] [Accepted: 10/11/2023] [Indexed: 11/13/2023]
Abstract
5'-Adenosine monophosphate-activated protein kinase (AMPK) is a metabolic sensor that serves as a cellular housekeeper; it also controls energy homeostasis and stress resistance. Thus, correct regulation of this factor can enhance health and survival. AMPK signaling may have a critical role in aging-associated brain diseases. Some in vitro studies have shown that 1,5-anhydro-D-fructose (1,5-AF) induces AMPK activation. In the present study, we experimentally evaluated the effects of 1,5-AF on aging-associated brain diseases in vivo using an animal model of acute ischemic stroke (AIS), stroke-prone spontaneously hypertensive rats (SHRSPs), and the spontaneous senescence-accelerated mouse-prone 8 (SAMP8) model. In the AIS model, intraperitoneal injection of 1,5-AF reduced cerebral infarct volume, neurological deficits, and mortality. In SHRSPs, oral administration of 1,5-AF reduced blood pressure and prolonged survival. In the SAMP8 model, oral administration of 1,5-AF alleviated aging-related decline in motor cognitive function. Although aging reduced the expression levels of peroxisome proliferator-activated receptor-γ co-activator-1α (PGC-1α) and brain-derived neurotrophic factor (BDNF), we found that 1,5-AF activated AMPK, which led to upregulation of the PGC-1α/BDNF pathway. Our results suggest that 1,5-AF can induce endogenous neurovascular protection, potentially preventing aging-associated brain diseases. Clinical studies are needed to determine whether 1,5-AF can prevent aging-associated brain diseases.
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Affiliation(s)
- Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Fukuoka 830-0011, Japan
- Department of Neurosurgery, Kurume University School of Medicine, Fukuoka 830-0011, Japan
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8520, Japan
| | - Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8520, Japan
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8520, Japan
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
| | - Kentaro Setoyama
- Division of Laboratory Animal Resources and Research, Center for Advanced Science Research and Promotion, Kagoshima University, Kagoshima 890-8520, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
| | - Eiichiro Tanaka
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Fukuoka 830-0011, Japan
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8520, Japan
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Norimatsu K, Nakanishi K, Ijuin T, Otsuka S, Takada S, Tani A, Matsuzaki R, Matsuoka T, Sakakima H. Effects of low-intensity exercise on spontaneously developed knee osteoarthritis in male senescence-accelerated mouse prone 8. Arthritis Res Ther 2023; 25:168. [PMID: 37710278 PMCID: PMC10500802 DOI: 10.1186/s13075-023-03162-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 09/06/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a degenerative joint disease associated with aging, which often leads to joint stiffness and disability. Exercise is one of the most important non-pharmacological treatments and is prescribed as an indispensable treatment for OA. However, whether physical exercise is beneficial for preventing the progression of OA symptoms with age is poorly understood. We investigated the effects of exercise on spontaneously developed knee OA using male senescence-accelerated mouse prone 8 (SAMP8). METHODS To examine age-related changes in the knee joints of SAMP8, knee articular cartilage changes, synovitis, knee joint flexion and extension angles, swelling, walking ability, and quadriceps muscle atrophy were analyzed at 3, 5, 7, and 9 months. SAMP8 were required to run at a speed of 10 m/min for 15 min/day from 7 to 9 months of age. The knee joint pathologies and symptoms of exercising and non-exercising mice were compared by histological, immunohistochemical, and morphometrical analyses. RESULTS The mice presented with various histological changes, including cartilage destruction, osteocyte formation, synovitis, declined joint angles, and swelling. Notably, medial and posterior cartilage destruction was more severe than that of the lateral and anterior cartilage. Knee joint angles were significantly correlated with the histological scores (modified Mankin and OARSI, osteophyte formation and synovial lining cell layer). Exercise did not attenuate cartilage degeneration in the medial and posterior tibial plateau, although the articular cartilage of the anterior and lateral tibial plateau and its histological scores was remained and significantly improved, respectively, by exercise. Exercise suppressed the age-related decline of collagen type II-positive areas in the remaining articular cartilage and improved the OA symptoms. Exercise reduced the expression of monocyte chemoattractant protein (MCP)-1 and tumor necrosis factor (TNF)-α positive macrophages in the synovium. CONCLUSION This study revealed that SAMP8 developed spontaneous knee OA with age, which resembled the disease symptoms in humans. Low-intensity exercise temporarily alleviated degeneration of the remaining cartilage, synovitis, and age-related decreases in knee flexion angle, stride length, and muscle atrophy in SAMP8. However, exercise during OA progression with age may cause mechanical stress that could be both beneficial and detrimental to joint health.
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Affiliation(s)
- Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Toshiro Ijuin
- Department of Orthopaedic Surgery, Kagoshima University, Kagoshima, Japan
| | - Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Ryoma Matsuzaki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Teruki Matsuoka
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan.
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Nakanishi K, Norimatsu K, Tani A, Matsuoka T, Matsuzaki R, Kakimoto S, Nojima N, Tachibe Y, Kato Y, Inadome M, Kitazato R, Otsuka S, Takada S, Sumizono M, Sakakima H. Effects of early exercise intervention and exercise cessation on neuronal loss and neuroinflammation in a senescence-accelerated mouse prone 8. Neurosci Lett 2023; 808:137297. [PMID: 37182575 DOI: 10.1016/j.neulet.2023.137297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 05/16/2023]
Abstract
Physical exercise is beneficial for preventing Alzheimer's disease (AD) and cognitive decline through several mechanisms, including suppression of neuroinflammation and neuronal loss in the hippocampus. Despite these exercise-induced benefits in AD pathology, less attention has been paid to the importance of maintaining exercise and the consequences of detraining. This study aimed to investigate the effects of early exercise intervention and detraining on age-related cognitive decline and its protective mechanisms using senescence-accelerated mouse prone 8 (SAMP8). These mice were divided to four groups: no-exercise (No-Ex, n = 9), 4 months (4M)-detraining (n = 11), 2 months (2M)-detraining (n = 11), and long-term exercise (LT-Ex, n = 13). Age-related cognitive decline was prevented in the LT-Ex group compared with the No-Ex group through the suppression of neuronal loss, enhanced brain-derived neurotrophic factor (BDNF), and inhibition of neuroinflammation corresponding to reduced M1 and increased M2 microglia in the hippocampus. No significant differences were observed in cognitive function between the detraining and No-Ex groups. However, the 2M-detraining group showed increased BDNF positive area in the CA1 region and the enhancement of anti-inflammatory M2 phenotype microglia. In contrast, no statistically beneficial exercise-induced changes in the hippocampus were observed in the 4M-detrainig group. These results showed that early exercise intervention prevented age-related cognitive deficits in AD progression by suppressing neuronal loss and neuroinflammation in the hippocampus. Exercise-induced benefits, including the anti-inflammation in the hippocampus, may be retained after exercise cessation, even if exercise-induced beneficial effects decline in a time-dependent manner.
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Affiliation(s)
- Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Teruki Matsuoka
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Ryoma Matsuzaki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Syogo Kakimoto
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Nao Nojima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Yuta Tachibe
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Yuki Kato
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Masaki Inadome
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Riho Kitazato
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Megumi Sumizono
- Department of Rehabilitation, Kyushu University of Nursing and Social Welfare, Kumamoto, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.
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Tani A, Sakakima H, Otsuka S, Mizuno K, Nakanishi K, Norimatsu K, Takada S, Matsuoka T, Matsuzaki R, Nakakogawa T, Maruyama I. Stimulation of functional recovery via neurorepair mechanisms by the traditional Japanese Kampo medicine, Ninjin'yoeito, and physical exercise in a rat ischemic stroke model. J Ethnopharmacol 2023; 302:115927. [PMID: 36402237 DOI: 10.1016/j.jep.2022.115927] [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] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/22/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ninjin'yoeito (NYT), a traditional Japanese Kampo medicine consisting of 12 herbs, has been reported to improve cognitive dysfunction, depression, and neurological recovery in patients with neurovascular diseases such as Alzheimer's disease and stroke. Several studies have reported that the NYT components exert neurotrophic, neurogenic, and neuroprotective effects. In addition, exercise enhances neuroprotection and functional recovery after stroke. Rehabilitative exercises and pharmacological agents induce neurophysiological plasticity, leading to functional recovery in stroke patients. These reports indicate that NYT treatment and exercise may promote functional recovery following stroke through their beneficial effects. However, no study has determined the effects of NYT and the possible mechanisms of neurorepair and functional recovery after stroke. AIM OF THE STUDY This study aimed to investigate the combined effects of NYT and exercise on neuroprotection and functional recovery and the underlying mechanisms in a rat ischemic stroke model. MATERIALS AND METHODS Stroke was induced with 60-min middle cerebral artery occlusion (MCAO) followed by reperfusion in adult male Sprague-Dawley rats. After stroke, the rats were assigned to four groups: ischemia reperfusion (IR), NYT, exercise (Ex), and NYT + Ex. NYT-treated rats were fed a diet containing 1% NYT one day after stroke. Exercise was performed using a motorized treadmill for 5 days a week (8-15 m/min, 20 min/day), starting 3 days after stroke. The NYT treatment and exercise were continued for 4 weeks after the stroke. Infarct volume, neurological deficits, sensorimotor functions, expression of nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), tropomyosin receptor kinase A (TrkA) and B (TrkB), caspase-3 activity, and the p-Akt/Akt ratio were examined by immunohistochemistry and western blotting. RESULTS Compared to the IR group, all treated groups indicated reduced infarct volumes. The NYT + Ex group showed significantly improved waking time and beam walking score compared with the IR group. The expression of NGF/TrkA/p-TrkA and BDNF/TrkB was significantly increased in the NYT + Ex group compared with those in the IR group, whereas the number of caspase-3 positive cells around the lesion was significantly lower in the NYT + Ex group than in the IR group. In addition, the ratio of p-Akt/Akt was significantly higher in the NYT + Ex group than in the IR group. CONCLUSIONS This study suggests that NYT in combination with exercise provides neuroprotective effects and improves sensorimotor function by stimulating NGF/TrkA and BDNF/TrkB, and by activating the Akt pathway in ischemic stroke of rats. NYT may be an effective adjunctive agent in post-stroke rehabilitation.
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Affiliation(s)
- Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan.
| | - Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University, Japan
| | - Keita Mizuno
- Tsumura Kampo Research Laboratories, Kampo Research & Development Division, Tsumura & Co., Ibaraki, Japan
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan
| | - Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University, Japan
| | - Teruki Matsuoka
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan
| | - Ryoma Matsuzaki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan
| | - Tomomi Nakakogawa
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Japan
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University, Japan
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7
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Otsuka S, Itashiki Y, Tani A, Matsuoka T, Takada S, Matsuzaki R, Nakanishi K, Norimatsu K, Tachibe Y, Kitazato R, Nojima N, Kakimoto S, Kikuchi K, Maruyama I, Sakakima H. Effects of different remote ischemia perconditioning methods on cerebral infarct volume and neurological impairment in rats. Sci Rep 2023; 13:2158. [PMID: 36750711 PMCID: PMC9905538 DOI: 10.1038/s41598-023-29475-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/06/2023] [Indexed: 02/09/2023] Open
Abstract
Remote ischemic perconditioning (RIPerC) is a novel neuroprotective method against cerebral infarction that has shown efficacy in animal studies but has not been consistently neuroprotective in clinical trials. We focused on the temporal regulation of ischemia-reperfusion by RIPerC to establish an optimal method for RIPerC. Rats were assigned to four groups: 10 min ischemia, 5 min reperfusion; 10 min ischemia, 10 min reperfusion; 5 min ischemia, 10 min reperfusion; and no RIPerC. RIPerC interventions were performed during ischemic stroke, which was induced by a 60-min left middle cerebral artery occlusion. Infarct volume, sensorimotor function, neurological deficits, and cellular expressions of brain-derived neurotrophic factor (BDNF), B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), and caspase 3 were evaluated 48 h after the induction of ischemia. Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labeling (TUNEL) was also performed. RIPerC of 10 min ischemia/10 min reperfusion, and 5 min ischemia/10 min reperfusion decreased infarct volume, improved sensorimotor function, decreased Bax, caspase 3, and TUNEL-positive cells, and increased BDNF and Bcl-2 expressions. Our findings suggest RIPerC with a reperfusion time of approximately 10 min exerts its neuroprotective effects via an anti-apoptotic mechanism. This study provides important preliminary data to establish more effective RIPerC interventions.
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Affiliation(s)
- Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan.
| | - Yuki Itashiki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Teruki Matsuoka
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Ryoma Matsuzaki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Yuta Tachibe
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Riho Kitazato
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Nao Nojima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Shogo Kakimoto
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kiyoshi Kikuchi
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan.,Division of Brain Science, Department of Physiology, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka, 830-0011, Japan.,Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka, 830-0011, Japan
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan.
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8
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Sumizono M, Yoshizato Y, Yamamoto R, Imai T, Tani A, Nakanishi K, Nakakogawa T, Matsuoka T, Matsuzaki R, Tanaka T, Sakakima H. Mechanisms of Neuropathic Pain and Pain-Relieving Effects of Exercise Therapy in a Rat Neuropathic Pain Model. J Pain Res 2022; 15:1925-1938. [PMID: 35860420 PMCID: PMC9289275 DOI: 10.2147/jpr.s367818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/14/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose Pain disrupts the daily and social lives of patients with neuropathic pain. Effective treatment of neuropathic pain is difficult. Pharmacological treatments for neuropathic pain are limited, and 40–60% of patients do not achieve even partial relief of their pain. This study created a chronic constriction injury (CCI) model in rats to examine the effects of regular exercise on neuropathic pain relief, elucidate the mechanism, and determine the effects of neuropathic pain in the hippocampus. Methods CCI model rats were randomly divided into exercise (Ex) and no exercise (No-Ex) groups. Normal rats (Normal group) were used as controls. The Ex group exercised on a treadmill at 20 m/min for 30 min, 5 days per week for 5 weeks post-CCI. The 50% pain response threshold was assessed by mechanical stimulation. Using immunohistochemistry, we examined activation of glial cells (microglia and astrocytes) by CCR2 and TRAF6 expression in the spinal cord dorsal horn and DCX and PROX1 expression in the hippocampal dentate gyrus. Results The 50% pain response threshold was significantly lower in the Ex than in the No-Ex group at 5 weeks post-CCI, indicating pain relief. In the spinal cord dorsal horn, IBA1, CCR2, and TRAF6 expression was markedly lower in the Ex group than in the No-Ex group at 3 weeks post-CCI. IBA1, GFAP, CCR2, and TRAF6 expression was markedly lower in the Ex group than in the No-Ex group at 5 weeks post-CCI. In the hippocampus, DCX, but not PROX1, expression was significantly higher in the Ex group than in the No-Ex group at 3 weeks post-CCI. At 5 weeks post-CCI, both DCX and PROX1 expression was markedly increased in the Ex group compared to the No-Ex group. Conclusion Our findings suggest that regular exercise can improve the neuropathic pain-induced neurogenic dysfunction in the hippocampal dentate gyrus.
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Affiliation(s)
- Megumi Sumizono
- Department of Rehabilitation, Kyushu University of Nursing and Social Welfare, Kumamoto, Japan.,Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Yushin Yoshizato
- Department of Rehabilitation, Kyushu University of Nursing and Social Welfare, Kumamoto, Japan
| | - Ryohei Yamamoto
- Department of Rehabilitation, Kyushu University of Nursing and Social Welfare, Kumamoto, Japan
| | - Takaki Imai
- Department of Rehabilitation, Kyushu University of Nursing and Social Welfare, Kumamoto, Japan
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Tomomi Nakakogawa
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Teruki Matsuoka
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Ryoma Matsuzaki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Takashi Tanaka
- Department of Rehabilitation, Kumamoto Health Science University, Kumamoto, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
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9
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Takada S, Setoyama K, Norimatsu K, Otsuka S, Nakanishi K, Tani A, Nakakogawa T, Matsuzaki R, Matsuoka T, Sakakima H, Tancharoen S, Maruyama I, Tanaka E, Kikuchi K, Uchikado H. E8002 Reduces Adhesion Formation and Improves Joint Mobility in a Rat Model of Knee Arthrofibrosis. Int J Mol Sci 2022; 23:ijms23031239. [PMID: 35163163 PMCID: PMC8835358 DOI: 10.3390/ijms23031239] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 11/26/2022] Open
Abstract
Knee arthrofibrosis is a common complication of knee surgery, caused by excessive scar tissue, which results in functional disability. However, no curative treatment has been established. E8002 is an anti-adhesion material that contains L-ascorbic acid, an antioxidant. We aimed to evaluate the efficacy of E8002 for the prevention of knee arthrofibrosis in a rat model, comprising injury to the surface of the femur and quadriceps muscle 1 cm proximal to the patella. Sixteen male, 8-week-old Sprague Dawley rats were studied: in the Adhesion group, haemorrhagic injury was induced to the quadriceps and bone, and in the E8002 group, an adhesion-preventing film was implanted between the quadriceps and femur after injury. Six weeks following injury, the restriction of knee flexion owing to fibrotic scarring had not worsened in the E8002 group but had worsened in the Adhesion group. The area of fibrotic scarring was smaller in the E8002 group than in the Adhesion group (p < 0.05). In addition, the numbers of fibroblasts (p < 0.05) and myofibroblasts (p < 0.01) in the fibrotic scar were lower in the E8002 group. Thus, E8002 reduces myofibroblast proliferation and fibrotic scar formation and improves the range of motion of the joint in a model of knee injury.
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Affiliation(s)
- Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (I.M.)
| | - Kentaro Setoyama
- Division of Laboratory Animal Science, Natural Science Center for Research and Education, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan;
| | - Kosuke Norimatsu
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (I.M.)
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Akira Tani
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Tomomi Nakakogawa
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Ryoma Matsuzaki
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Teruki Matsuoka
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (T.N.); (R.M.); (T.M.); (H.S.)
| | - Salunya Tancharoen
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand;
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (I.M.)
| | - Eiichiro Tanaka
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan;
| | - Kiyoshi Kikuchi
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (I.M.)
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan;
- Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan
- Correspondence: (K.K.); (H.U.); Tel.: +81-942-31-7542 (K.K.); +81-92-477-2355 (H.U.); Fax: +81-942-31-7695 (K.K.); +81-92-477-2325 (H.U.)
| | - Hisaaki Uchikado
- Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan
- Uchikado Neuro-Spine Clinic, 1-2-3 Naka, Hakata-ku, Fukuoka 812-0893, Japan
- Correspondence: (K.K.); (H.U.); Tel.: +81-942-31-7542 (K.K.); +81-92-477-2355 (H.U.); Fax: +81-942-31-7695 (K.K.); +81-92-477-2325 (H.U.)
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10
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Natsume K, Sakakima H, Kawamura K, Yoshida A, Akihiro S, Yonezawa H, Yoshimoto K, Shimodozono M. Factors Influencing the Improvement of Activities of Daily Living during Inpatient Rehabilitation in Newly Diagnosed Patients with Glioblastoma Multiforme. J Clin Med 2022; 11:jcm11020417. [PMID: 35054111 PMCID: PMC8780839 DOI: 10.3390/jcm11020417] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 12/01/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive brain tumor. To identify the factors influencing the improvement of the activities of daily living (ADL) in newly diagnosed patients with GBM, we investigated the characteristics and variable factors and overall survival. A total of 105 patients with GBM were retrospectively analyzed and categorized into the following three groups according to the quartile of change of their Barthel index score from admission to discharge: deterioration (n = 25), no remarkable change (n = 55), and good recovery (n = 25). A statistical difference was observed in the pre-operative, intra-operative, post-operative, and rehabilitation-related factors between the deterioration and good recovery groups. Multiple regression analysis identified the following significant factors that may influence the improvement of ADL after surgery: the improvement of motor paralysis after surgery, mild fatigue during radio and chemotherapy, and length up to early walking training onset. The median overall survival was significantly different between the deterioration (10.6 months) and good recovery groups (18.9 months, p = 0.025). Our findings identified several factors that may be associated with post-operative functional improvement in patients with GBM. The inpatient rehabilitation during radio and chemotherapy may be encouraged without severe adverse events and can promote functional outcomes, which may contribute to the overall survival of newly diagnosed patients with GBM.
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Affiliation(s)
- Keisuke Natsume
- Division of Rehabilitation, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (K.N.); (K.K.); (A.Y.); (S.A.); (M.S.)
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
- Correspondence: ; Tel.: +81-99-275-6778; Fax: +81-99-275-6804
| | - Kentaro Kawamura
- Division of Rehabilitation, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (K.N.); (K.K.); (A.Y.); (S.A.); (M.S.)
| | - Akira Yoshida
- Division of Rehabilitation, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (K.N.); (K.K.); (A.Y.); (S.A.); (M.S.)
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
| | - Shintaro Akihiro
- Division of Rehabilitation, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (K.N.); (K.K.); (A.Y.); (S.A.); (M.S.)
| | - Hajime Yonezawa
- Department of Neurosurgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (H.Y.); (K.Y.)
| | - Koji Yoshimoto
- Department of Neurosurgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (H.Y.); (K.Y.)
| | - Megumi Shimodozono
- Division of Rehabilitation, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan; (K.N.); (K.K.); (A.Y.); (S.A.); (M.S.)
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11
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Otsuka S, Sakakima H, Tani A, Nakanishi K, Takada S, Norimatsu K, Maejima H, Maruyama I. Effects of detraining on preconditioning exercise-induced neuroprotective potential after ischemic stroke in rats. Brain Struct Funct 2021; 226:2169-2180. [PMID: 34114048 DOI: 10.1007/s00429-021-02317-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 06/07/2021] [Indexed: 11/24/2022]
Abstract
Preconditioning exercise prior to stroke exerts neuroprotection, which is an endogenous strategy that leads the brain cells to express several intrinsic factors and inhibits their apoptosis. However, it is unclear how long these benefits last after exercise cessation. The aim of this study was to investigate the effects of detraining on preconditioning exercise-induced neuroprotective potential after stroke. Rats were trained using a treadmill for aerobic exercise 5 days each week for 3 weeks, and their neuroprotective effects were examined until 3 weeks after exercise cessation. Stroke was induced by 60 min of left middle cerebral artery occlusion at 3 days, 1, 2, and 3 weeks after exercise cessation. Infarct volume, neurological deficits, sensorimotor function, expression levels of brain-derived neurotrophic factor (BDNF), hypoxia-induced factor-1α (HIF-1α), glial fibrillary acidic protein (GFAP), and P2X7 receptors, and apoptosis activity were examined using immunohistochemical and western blot analyses. Preconditioning exercise significantly reduced infarct volume and ameliorated sensorimotor function after stroke, and its beneficial effects were observed until 2 weeks after exercise cessation. The expression level of BDNF in the ischemic brain was significantly upregulated at 3 days after exercise cessation; however, the expression levels of HIF-1α, GFAP, and P2X7 receptor were significantly increased until 2 weeks after exercise cessation; thereby, significant anti-apoptotic effects were lost at 3 weeks of detraining. Our findings suggest that preconditioning exercise-induced neuroprotective potential may be lost shortly after exercise cessation. Neuroprotection through intrinsic protective factors, such as BDNF and HIF-1α, may provide different neuroprotective mechanisms in a time-dependent manner during detraining.
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Affiliation(s)
- Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan.
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Hiroshi Maejima
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
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12
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Kikuchi K, Setoyama K, Takada S, Otsuka S, Nakanishi K, Norimatsu K, Tani A, Sakakima H, Kawahara KI, Hosokawa K, Kiyama R, Sumizono M, Tancharoen S, Maruyama I, Hattori G, Morioka M, Tanaka E, Uchikado H. E8002 Inhibits Peripheral Nerve Adhesion by Enhancing Fibrinolysis of l-Ascorbic Acid in a Rat Sciatic Nerve Model. Int J Mol Sci 2020; 21:ijms21113972. [PMID: 32492845 PMCID: PMC7313081 DOI: 10.3390/ijms21113972] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/12/2020] [Accepted: 05/31/2020] [Indexed: 12/23/2022] Open
Abstract
Perineural adhesions leading to neuropathy are one of the most undesirable consequences of peripheral nerve surgery. However, there are currently no widely used compounds with anti-adhesive effects in the field of peripheral nerve surgery. E8002 is a novel, anti-adhesive, multi-layer membrane that contains L-ascorbic acid (AA). Here, we investigated the effect and mechanism of E8002 in a rat sciatic nerve adhesion model. A total of 21 rats were used. Six weeks after surgery, macroscopic adhesion scores were significantly lower in the E8002 group (adhesion procedure followed by nerve wrapping with E8002) compared to the E8002 AA(−) group (adhesion procedure followed by nerve wrapping with the E8002 membrane excluding AA) and adhesion group (adhesion procedure but no treatment). Correspondingly, a microscopic examination revealed prominent scar tissue in the E8002 AA(−) and adhesion groups. Furthermore, an in vitro study using human blood samples showed that AA enhanced tissue-type, plasminogen activator-mediated fibrinolysis. Altogether, these results suggest that E8002 may exert an anti-adhesive action via AA and the regulation of fibrinolysis.
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Affiliation(s)
- Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan;
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan; (G.H.); (M.M.)
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (K.-i.K.); (I.M.)
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand;
| | - Kentaro Setoyama
- Natural Science Center for Research and Education, Division of Laboratory Animal Science, Kagoshima University, Kagoshima 890-8520, Japan;
| | - Seiya Takada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (K.-i.K.); (I.M.)
| | - Shotaro Otsuka
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (K.-i.K.); (I.M.)
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (H.S.); (R.K.)
| | - Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (H.S.); (R.K.)
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (H.S.); (R.K.)
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (H.S.); (R.K.)
| | - Ko-ichi Kawahara
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (K.-i.K.); (I.M.)
- Laboratory of Functional Foods, Department of Biomedical Engineering, Osaka Institute of Technology, Osaka 535-8585, Japan
| | - Kazuya Hosokawa
- Research Institute, Fujimori Kogyo Co., Ltd., 1-10-1 Sachiura, Kanazawa-ku, Yokohama, Kanagawa 236-0003, Japan;
| | - Ryoji Kiyama
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan; (K.N.); (K.N.); (A.T.); (H.S.); (R.K.)
| | - Megumi Sumizono
- Department of Rehabilitation, Faculty of Nursing and Welfare, Kyushu University of Nursing and Social Welfare, Tamana, Kumamoto 865-0062, Japan;
| | - Salunya Tancharoen
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand;
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima 890-8520, Japan; (S.T.); (S.O.); (K.-i.K.); (I.M.)
| | - Gohsuke Hattori
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan; (G.H.); (M.M.)
| | - Motohiro Morioka
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan; (G.H.); (M.M.)
| | - Eiichiro Tanaka
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan;
- Correspondence: (E.T.); (H.U.); Tel.: +81-942-31-7542 (E.T.); +81-92-477-2355 (H.U.); Fax: +81-942-31-7695 (E.T.); +81-92-477-2325 (H.U.)
| | - Hisaaki Uchikado
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan; (G.H.); (M.M.)
- Uchikado Neuro-Spine Clinic, Fukuoka 812-0893, Japan
- Correspondence: (E.T.); (H.U.); Tel.: +81-942-31-7542 (E.T.); +81-92-477-2355 (H.U.); Fax: +81-942-31-7695 (E.T.); +81-92-477-2325 (H.U.)
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13
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Takada S, Sakakima H, Matsuyama T, Otsuka S, Nakanishi K, Norimatsu K, Itashiki Y, Tani A, Kikuchi K. Disruption of Midkine gene reduces traumatic brain injury through the modulation of neuroinflammation. J Neuroinflammation 2020; 17:40. [PMID: 31996236 PMCID: PMC6990546 DOI: 10.1186/s12974-020-1709-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 01/12/2020] [Indexed: 01/29/2023] Open
Abstract
Background Midkine (MK) is a multifunctional cytokine found upregulated in the brain in the presence of different disorders characterized by neuroinflammation, including neurodegenerative disorders and ischemia. The neuroinflammatory response to traumatic brain injury (TBI) represents a key secondary injury factor that can result in further neuronal injury. In the present study, we investigated the role of endogenous MK in secondary injury, including neuroinflammation, immune response, and neuronal apoptosis activity, after TBI. Methods Wild type (Mdk+/+) and MK gene deficient (Mdk−/−) mice were subjected to fluid percussion injury for TBI models and compared at 3, 7, and 14 days after TBI, in terms of the following: brain tissue loss, neurological deficits, microglia response, astrocytosis, expression of proinflammatory M1 and anti-inflammatory M2 microglia/macrophage phenotype markers, and apoptotic activity. Results As opposed to Mdk+/+ mice, Mdk−/− mice reported a significantly reduced area of brain tissue loss and an improvement in their neurological deficits. The ratios of the Iba1-immunoreactive microglia/macrophages in the perilesional site were significantly decreased in Mdk−/− than in the Mdk+/+ mice at 3 days after TBI. However, the ratios of the glial fibrillary acidic protein immunoreactive area were similar between the two groups. The M1 phenotype marker (CD16/32) immunoreactive areas were significantly reduced in Mdk−/− than in the Mdk+/+ mice. Likewise, the mRNA levels of the M1 phenotype markers (TNF-α, CD11b) were significantly decreased in Mdk−/− mice than in Mdk+/+ mice. Furthermore, flow cytometry analysis identified the M2 markers, i.e., CD163+ macrophages cells and arginase-1+ microglia cells, to be significantly higher in Mdk−/− than in Mdk+/+ mice. Finally, the ratios of apoptotic neurons were significantly decreased in the area surrounding the lesion in Mdk−/− than in Mdk+/+ mice following TBI. Conclusion Our findings suggest that MK-deficiency reduced tissue infiltration of microglia/macrophages and altered their polarization status thereby reducing neuroinflammation, neuronal apoptosis, and tissue loss and improving neurological outcomes after TBI. Therefore, targeting MK to modulate neuroinflammation may represent a potential therapeutic strategy for TBI management.
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Affiliation(s)
- Seiya Takada
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan.
| | - Takahiro Matsuyama
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Shotaro Otsuka
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuki Nakanishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kosuke Norimatsu
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Yuki Itashiki
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Akira Tani
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan
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Sakakima H. Endogenous neuroprotective potential due to preconditioning exercise in stroke. Phys Ther Res 2019; 22:45-52. [PMID: 32015940 DOI: 10.1298/ptr.r0006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/12/2019] [Indexed: 01/14/2023]
Abstract
Stroke is a leading cause of serious long-term physical disability due to insufficient neurorepair mechanisms. In general, physical activity is an important modifiable risk factor, particularly for stroke and cardiovascular diseases. Physical exercise has shown to be neuroprotective in both animal experiments and clinical settings. Exercise can be considered a mild stressor and follows the prototypical preconditioning stimulus. It has beneficial effects on brain health and cognitive function. Preconditioning exercise, which is prophylactic exercise prior to ischemia, can protect the brain from subsequent serious injury through promotion of angiogenesis, mediation of inflammatory responses, inhibition of glutamate over-activation, protection of the blood-brain barrier, and inhibition of apoptosis. Preconditioning exercise appears to induce brain ischemic tolerance and it has been shown to exert beneficial effects. It is clinically safe and feasible and represents an exciting new paradigm in endogenous neuroprotection for patients with acute stroke. In this review, we describe the neuroprotective potential of preconditioning exercise and clinical applications in patients with acute ischemic stroke.
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Affiliation(s)
- Harutoshi Sakakima
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University
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Terashi T, Otsuka S, Takada S, Nakanishi K, Ueda K, Sumizono M, Kikuchi K, Sakakima H. Neuroprotective effects of different frequency preconditioning exercise on neuronal apoptosis after focal brain ischemia in rats. Neurol Res 2019; 41:510-518. [PMID: 30822224 DOI: 10.1080/01616412.2019.1580458] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Preconditioning exercise can exert neuroprotective effects after stroke; however, the effects of exercise intensity, frequency, duration are unknown. We investigated the neuroprotective effect of different frequency preconditioning exercise on neuronal apoptosis after cerebral ischemia in rats. METHODS Rats were divided into the following five groups: 5 times a week of exercise (5/w-Ex) group, 3 times a week of exercise (3/w-Ex) group, once a week of exercise (1/w-Ex) group, no exercise (No-Ex) group, and intact control (control) group. Rats were made to run on a treadmill for 30 min per day at a speed of 25 m/min for 3 weeks. After the running program, the rats were subjected to 60-min left middle cerebral artery occlusion. Two days after ischemia, the cerebral infarct volume, neurological and motor function, Bcl-2-associated X protein (Bax)/B-cell lymphoma 2 (Bcl-2) ratio, expression of caspase-3, and TUNEL positive cells were examined in the cerebral cortex surrounding the ischemic zone. RESULTS The 3/w-Ex and 5/w-Ex groups showed significantly reduced infarct volumes compared with the No-Ex group, but the 1/w-Ex group did not. In addition, the 3/w-Ex and 5/w-Ex groups had improved neurological scores and sensorimotor function compared with the No-Ex group. The Bax/Bcl-2 ratio, expression of caspase-3, and TUNEL-positive cells significantly decreased in the penumbra area in the 3/w-Ex or 5/w-Ex groups compared with the No-Ex group. DISCUSSION Our findings suggested that three times or more per week of high-intensity preconditioning exercise exert neuroprotective effects through the downregulation of the Bax/Bcl-2 ratio and caspase-3 activation after stroke. ABBREVIATIONS TUNEL: terminal deoxynucleotidyl transferase-mediated biotinylated dUTP nick and labeling; MCAO:middle cerebral artery occlusion; BAX:Bcl-2-associated X protein; Bcl-2: B-cell lymphoma 2; TTC: 2,3,5-triphenyltetrazorlium chloride.
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Affiliation(s)
- Takuto Terashi
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Shotaro Otsuka
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Seiya Takada
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Kazuki Nakanishi
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Koki Ueda
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Megumi Sumizono
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Kiyoshi Kikuchi
- b Division of Brain Science, Department of Physiology , Kurume University School of Medicine , Kurume , Japan
| | - Harutoshi Sakakima
- a Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
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16
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Otsuka S, Sakakima H, Terashi T, Takada S, Nakanishi K, Kikuchi K. Correction to: Preconditioning exercise reduces brain damage and neuronal apoptosis through enhanced endogenous 14-3-3γ after focal brain ischemia in rats. Brain Struct Funct 2018; 224:739-740. [PMID: 30560373 DOI: 10.1007/s00429-018-1815-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In the original publication of the article, both the Fig. 2e and Fig. 7e have been published incorrectly and the correct figures are given below.
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Affiliation(s)
- Shotaro Otsuka
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan.
| | - Takuto Terashi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Seiya Takada
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan. .,Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan. .,Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan. .,Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
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Otsuka S, Sakakima H, Terashi T, Takada S, Nakanishi K, Kikuchi K. Preconditioning exercise reduces brain damage and neuronal apoptosis through enhanced endogenous 14-3-3γ after focal brain ischemia in rats. Brain Struct Funct 2018; 224:727-738. [PMID: 30478609 DOI: 10.1007/s00429-018-1800-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [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: 08/07/2018] [Accepted: 11/21/2018] [Indexed: 11/24/2022]
Abstract
14-3-3γ is an important early ischemia-inducible protective factor against ischemic cell death in cerebral cortical neurons. We investigated the anti-apoptosis mechanism of enhanced 14-3-3γ mediated by preconditioning exercise-induced brain ischemic tolerance after stroke. Rats were assigned to four groups: exercise and ischemia (Ex group), ischemia and no exercise (No-Ex group), exercise and no ischemia (Ex-only group), and no exercise and ischemia (control group). Rats were trained on a treadmill for 5 days a week for 3 weeks (running speed, 25 m/min; running duration, 30 min/day). After the exercise program, stroke was induced by left middle cerebral artery occlusion. The infarct volume, neurological deficits, and motor function, as well as expression levels of hypoxia-induced factor-1α (HIF-1α), 14-3-3γ, P2X7 receptors, p-β-catenin Ser37, Bax, and caspase 3 were evaluated by immunohistochemistry and western blotting. The expression of HIF-1α and 14-3-3γ significantly increased in neurons and astrocytes in the Ex-only group. HIF-1α was co-expressed with P2X7 receptor- and GFAP-positive astrocytes. After stroke, the Ex group had significantly reduced brain infarction. HIF-1α and 14-3-3γ significantly increased in the Ex group compared to the No-Ex group. In addition, p-β-catenin Ser37 significantly increased following elevated 14-3-3γ; in contrast, Bax and caspase 3 were significantly reduced in the Ex group. Our findings suggest that preconditioning exercise prior to ischemia induces neuron- and astrocyte-mediated brain ischemic tolerance through increased expression of HIF-1α and 14-3-3γ, which are intrinsic protective factors; the upregulated 14-3-3γ induced by preconditioning exercise reduces ischemic neuronal cell death through the 14-3-3γ/p-β-catenin Ser37/Bax/caspase 3 anti-apoptotic pathway.
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Affiliation(s)
- Shotaro Otsuka
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan.
| | - Takuto Terashi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Seiya Takada
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan.
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan.
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan.
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
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18
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Kikuchi K, Setoyama K, Tanaka E, Otsuka S, Terashi T, Nakanishi K, Takada S, Sakakima H, Ampawong S, Kawahara KI, Nagasato T, Hosokawa K, Harada Y, Yamamoto M, Kamikokuryo C, Kiyama R, Morioka M, Ito T, Maruyama I, Tancharoen S. Uric acid enhances alteplase-mediated thrombolysis as an antioxidant. Sci Rep 2018; 8:15844. [PMID: 30367108 PMCID: PMC6203847 DOI: 10.1038/s41598-018-34220-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/15/2018] [Indexed: 01/01/2023] Open
Abstract
Uric acid (UA) therapy may prevent early ischemic worsening after acute stroke in thrombolysis patients. The aim of this study was to examine the influence of UA on the thrombolytic efficacy of alteplase in human blood samples by measuring thrombolysis under flow conditions using a newly developed microchip-based flow-chamber assay. Human blood samples from healthy volunteers were exposed to UA, alteplase, or a combination of UA and alteplase. Whole blood and platelet-rich plasma were perfused over a collagen- and thromboplastin-coated microchip, and capillary occlusion was monitored with a video microscope and flow-pressure sensor. The area under the curve (extent of thrombogenesis or thrombolysis) at 30 minutes was 92% lower in the UA-alteplase-treated group compared with the alteplase-treated group. D-dimers were measured to evaluate these effects in human platelet-poor plasma samples. Although hydrogen peroxide significantly decreased the elevation of D-dimers by alteplase, UA significantly inhibited the effect of hydrogen peroxide. Meanwhile, rat models of thromboembolic cerebral ischemia were treated with either alteplase or UA-alteplase combination therapy. Compared with alteplase alone, the combination therapy reduced the infarct volume and inhibited haemorrhagic transformation. UA enhances alteplase-mediated thrombolysis, potentially by preventing oxidative stress, which inhibits fibrinolysis by alteplase in thrombi.
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Affiliation(s)
- Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan.,Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan.,Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan.,Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Kentaro Setoyama
- Natural Science Center for Research and Education, Division of Laboratory Animal Science, Kagoshima University, Kagoshima, Japan
| | - Eiichiro Tanaka
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan
| | - Shotaro Otsuka
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Takuto Terashi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Seiya Takada
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, (S.A.), Mahidol University, Bangkok, Thailand
| | - Ko-Ichi Kawahara
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan.,Laboratory of Functional Foods, Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, Japan
| | - Tomoka Nagasato
- Research Institute, Fujimori Kogyo Co., Yokohama, Kanagawa, Japan
| | - Kazuya Hosokawa
- Research Institute, Fujimori Kogyo Co., Yokohama, Kanagawa, Japan
| | - Yoichiro Harada
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Mika Yamamoto
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Chinatsu Kamikokuryo
- Department of Emergency and Critical Care Medicine, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Ryoji Kiyama
- School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Motohiro Morioka
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan
| | - Takashi Ito
- Department of Emergency and Critical Care Medicine, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, Japan
| | - Salunya Tancharoen
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
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19
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Akihiro S, Taira Y, Maeda K, Natsume K, Sakakima H. Feasibility and effectiveness of home-based exercise programs on physical performance and health-related quality of life of the older people dwelling on an isolated, doctor-less island. Geriatr Gerontol Int 2018; 18:1313-1317. [PMID: 29984893 DOI: 10.1111/ggi.13459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 04/13/2018] [Accepted: 05/27/2018] [Indexed: 11/29/2022]
Abstract
AIM To promote preventive care among older individuals dwelling on an isolated, doctor-less island, we investigated the feasibility and the efficacy of a home-based exercise program, depending on their functional status and health-related quality of life. METHODS A total of 23 older (mean age 72.6 years) participants were assigned to a home-based exercise program (intervention group), and 34 older (mean age 74.2 years) participants were assigned to a group without any intervention (control group). The participants of the intervention group attended the exercise program three times a week for 3 months. The exercise program consisted of various exercises involving stretching, muscle strengthening, balance retraining and walking. The physical performance, Functional Independence Measure and Short-Form 36-item health survey were used to assess the physical and the mental wellbeing of the participants. RESULTS There was no significant difference between the changes in physical performance at baseline and post 3 months in both groups. However, the motor and the cognitive Functional Independence Measure scores significantly improved in the intervention group post 3 months. The domains of the Short-Form 36-item health survey improved post 3 months; particularly, significant improvement was observed in the physical functions, general health, vitality, mental health and mental component summary. CONCLUSIONS Although an isolated island has several problems to support preventive care services, such as a lack of medical resources and availability of only a few healthcare workers, the present study provides evidence on the feasibility and efficacy of nurse-led home-based exercise programs for improving the physical and mental health of the older people dwelling on an isolated, doctor-less island. Geriatr Gerontol Int 2018; 18: 1313-1317.
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Affiliation(s)
- Shintaro Akihiro
- Division of Rehabilitation, Kagoshima University Hospital, Kagoshima, Japan.,Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Yaeko Taira
- Section of civil affairs, Mishima-mura office, Kagoshima, Japan
| | - Keita Maeda
- Section of civil affairs, Mishima-mura office, Kagoshima, Japan
| | - Keisuke Natsume
- Division of Rehabilitation, Kagoshima University Hospital, Kagoshima, Japan.,Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
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20
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Kikuchi K, Setoyama K, Terashi T, Sumizono M, Tancharoen S, Otsuka S, Takada S, Nakanishi K, Ueda K, Sakakima H, Kawahara KI, Maruyama I, Hattori G, Morioka M, Tanaka E, Uchikado H. Application of a Novel Anti-Adhesive Membrane, E8002, in a Rat Laminectomy Model. Int J Mol Sci 2018; 19:ijms19051513. [PMID: 29783695 PMCID: PMC5983581 DOI: 10.3390/ijms19051513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 11/16/2022] Open
Abstract
Neuropathic pain after spinal surgery, so-called failed back surgery syndrome, is a frequently observed common complication. One cause of the pain is scar tissue formation, observed as post-surgical epidural adhesions. These adhesions may compress surrounding spinal nerves, resulting in pain, even after successful spinal surgery. E8002 is an anti-adhesive membrane. In Japan, a clinical trial of E8002 is currently ongoing in patients undergoing abdominal surgery. However, animal experiments have not been performed for E8002 in spinal surgery. We assessed the anti-adhesive effect of E8002 in a rat laminectomy model. The dura matter was covered with an E8002 membrane or left uncovered as a control. Neurological evaluations and histopathological findings were compared at six weeks postoperatively. Histopathological analyses were performed by hematoxylin–eosin and aldehyde fuchsin-Masson Goldner staining. Three assessment areas were selected at the middle and margins of the laminectomy sites, and the numbers of fibroblasts and inflammatory cells were counted. Blinded histopathological evaluation revealed that adhesions and scar formation were reduced in the E8002 group compared with the control group. The E8002 group had significantly lower numbers of fibroblasts and inflammatory cells than the control group. The present results indicate that E8002 can prevent epidural scar adhesions after laminectomy.
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Affiliation(s)
- Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan.
- Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan.
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, 6 Yothe Road, Rajthevee, Bangkok 10400, Thailand.
| | - Kentaro Setoyama
- Division of Laboratory Animal Science, Natural Science Center for Research and Education, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
| | - Takuto Terashi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Megumi Sumizono
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Salunya Tancharoen
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, 6 Yothe Road, Rajthevee, Bangkok 10400, Thailand.
| | - Shotaro Otsuka
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Seiya Takada
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Koki Ueda
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Ko-Ichi Kawahara
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
- Laboratory of Functional Foods, Department of Biomedical Engineering Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan.
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
| | - Gohsuke Hattori
- Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan.
| | - Motohiro Morioka
- Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan.
| | - Eiichiro Tanaka
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan.
| | - Hisaaki Uchikado
- Department of Neurosurgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan.
- Uchikado Neuro-Spine Clinic, 1-2-3 Naka, Hakata-ku, Fukuoka 812-0893, Japan.
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21
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Sumizono M, Sakakima H, Otsuka S, Terashi T, Nakanishi K, Ueda K, Takada S, Kikuchi K. The effect of exercise frequency on neuropathic pain and pain-related cellular reactions in the spinal cord and midbrain in a rat sciatic nerve injury model. J Pain Res 2018; 11:281-291. [PMID: 29445295 PMCID: PMC5808703 DOI: 10.2147/jpr.s156326] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Exercise regimens are established methods that can relieve neuropathic pain. However, the relationship between frequency and intensity of exercise and multiple cellular responses of exercise-induced alleviation of neuropathic pain is still unclear. We examined the influence of exercise frequency on neuropathic pain and the intracellular responses in a sciatic nerve chronic constriction injury (CCI) model. Materials and methods Rats were assigned to four groups as follows: CCI and high-frequency exercise (HFE group), CCI and low-frequency exercise (LFE group), CCI and no exercise (No-Ex group), and naive animals (control group). Rats ran on a treadmill, at a speed of 20 m/min, for 30 min, for 5 (HFE) or 3 (LFE) days a week, for a total of 5 weeks. The 50% withdrawal threshold was evaluated for mechanical sensitivity. The activation of glial cells (microglia and astrocytes), expression of brain-derived neurotrophic factor (BDNF) and μ-opioid receptor in the spinal dorsal horn and endogenous opioid in the midbrain were examined using immunohistochemistry. Opioid receptor antagonists (naloxone) were administered using intraperitoneal injection. Results The development of neuropathic pain was related to the activation of glial cells, increased BDNF expression, and downregulation of the μ-opioid receptor in the ipsilateral spinal dorsal horn. In the No-Ex group, neuropathic pain showed the highest level of mechanical hypersensitivity at 2 weeks, which improved slightly until 5 weeks after CCI. In both exercise groups, the alleviation of neuropathic pain was accelerated through the regulation of glial activation, BDNF expression, and the endogenous opioid system. The expression of BDNF and endogenous opioid in relation to exercise-induced alleviation of neuropathic pain differed in the HFE and LFE groups. The effects of exercise-induced alleviation of mechanical hypersensitivity were reversed by the administration of naloxone. Conclusion The LFE and HFE program reduced neuropathic pain. Our findings indicated that aerobic exercise-induced alleviated neuropathic pain through the regulation of glial cell activation, expression of BDNF in the ipsilateral spinal dorsal horn, and the endogenous opioid system.
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Affiliation(s)
- Megumi Sumizono
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.,Kirishima Orthopedics, Kirishima, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Shotaro Otsuka
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Takuto Terashi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Kazuki Nakanishi
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.,Kirishima Orthopedics, Kirishima, Japan
| | - Koki Ueda
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.,Kirishima Orthopedics, Kirishima, Japan
| | - Seiya Takada
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.,Kirishima Orthopedics, Kirishima, Japan
| | - Kiyoshi Kikuchi
- Division of Brain Science, Department of Physiology, Kurume University School of Medicine, Kurume, Japan
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Haseba S, Sakakima H, Nakao S, Ohira M, Yanagi S, Imoto Y, Yoshida A, Shimodozono M. Early postoperative physical therapy for improving short-term gross motor outcome in infants with cyanotic and acyanotic congenital heart disease. Disabil Rehabil 2017; 40:1694-1701. [PMID: 28385091 DOI: 10.1080/09638288.2017.1309582] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE We analysed the gross motor recovery of infants and toddlers with cyanotic and acyanotic congenital heart disease (CHD) who received early postoperative physical therapy to see whether there was any difference in the duration to recovery. METHODS This study retrospectively evaluated the influence of early physical therapy on postoperative gross motor outcomes of patients with CHD. The gross motor ability of patients with cyanotic (n = 25, average age: 376.4 days) and acyanotic (n = 26, average age: 164.5 days) CHD was evaluated using our newly developed nine-grade mobility assessment scale. RESULTS Physical therapy was started at an average of five days after surgery, during which each patient's gross motor ability was significantly decreased compared with the preoperative level. Patients (who received early postoperative physical therapy) with cyanotic (88.0%) and acyanotic CHD (96.2%) showed improved preoperative mobility grades by the time of hospital discharge. However, patients with cyanotic CHD had a significantly prolonged recovery period compared to those with acyanotic CHD (p < .01). The postoperative recovery period to preoperative mobility grade was significantly correlated with pre-, intra-, and postoperative factors. CONCLUSIONS Our findings suggested that infants with cyanotic CHD are likely at a greater risk of gross motor delays, the recovery of which might differ between infants with cyanotic and acyanotic CHD after cardiac surgery. Early postoperative physical therapy promotes gross motor recovery. Implications of Rehabilitation Infants and toddlers with cyanotic congenital heart disease are likely at greater risk of gross motor delays and have a prolonged recovery period of gross motor ability compared to those with acyanotic congenital heart disease. Early postoperative physical therapy for patients with congenital heart disease after cardiac surgery promoted gross motor recovery. The postoperative recovery period to preoperative mobility grade was affected by pre-, intra-, and postoperative factors. Rehabilitation experts should consider the risk of gross motor delays of patients with congenital heart disease after cardiac surgery and the early postoperative physical therapy to promote their gross motor recovery.
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Affiliation(s)
- Sumihito Haseba
- a Division of Rehabilitation , Kagoshima University Hospital , Kagoshima , Japan.,b Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Harutoshi Sakakima
- b Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Syuhei Nakao
- a Division of Rehabilitation , Kagoshima University Hospital , Kagoshima , Japan.,b Course of Physical Therapy, School of Health Sciences, Faculty of Medicine , Kagoshima University , Kagoshima , Japan
| | - Misaki Ohira
- a Division of Rehabilitation , Kagoshima University Hospital , Kagoshima , Japan
| | - Shigefumi Yanagi
- a Division of Rehabilitation , Kagoshima University Hospital , Kagoshima , Japan
| | - Yutaka Imoto
- c Department of Cardiovascular and Gastroenterological Surgery, Graduate School of Medical and Dental Sciences , Kagoshima University , Kagoshima , Japan
| | - Akira Yoshida
- a Division of Rehabilitation , Kagoshima University Hospital , Kagoshima , Japan
| | - Megumi Shimodozono
- a Division of Rehabilitation , Kagoshima University Hospital , Kagoshima , Japan
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23
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Otsuka S, Sakakima H, Sumizono M, Takada S, Terashi T, Yoshida Y. The neuroprotective effects of preconditioning exercise on brain damage and neurotrophic factors after focal brain ischemia in rats. Behav Brain Res 2016; 303:9-18. [DOI: 10.1016/j.bbr.2016.01.049] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/18/2016] [Accepted: 01/20/2016] [Indexed: 01/07/2023]
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24
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Shimada H, Otero M, Tsuchimochi K, Yamasaki S, Sakakima H, Matsuda F, Sakasegawa M, Setoguchi T, Xu L, Goldring MB, Tanimoto A, Komiya S, Ijiri K. CCAAT/enhancer binding protein β (C/EBPβ) regulates the transcription of growth arrest and DNA damage-inducible protein 45 β (GADD45β) in articular chondrocytes. Pathol Res Pract 2016; 212:302-9. [PMID: 26896926 DOI: 10.1016/j.prp.2016.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 01/09/2016] [Accepted: 01/24/2016] [Indexed: 01/29/2023]
Abstract
Osteoarthritis (OA) is a whole joint disease characterized by cartilage degradation, which causes pain and disability in older adults. Our previous work showed that growth arrest and DNA damage-inducible protein 45 β (GADD45β) is upregulated in chondrocyte clusters in OA cartilage, especially in the early stage of this disease. CCAAT/enhancer binding protein β (C/EBPβ) is expressed in the hypertrophic growth plate chondrocytes and functions in synergy with GADD45β. Here, the presence and localization of these proteins was assessed by immunohistochemistry using articular cartilage from OA patients, revealing colocalization of C/EBPβ and GADD45β in OA chondrocytes. GADD45β promoter analysis was performed to determine whether C/EBPβ directly regulates GADD45β transcription. Furthermore, we analyzed the effect of C/EBPβ on Gadd45β gene regulation in articular chondrocytes in vivo and in vitro. Immunohistochemical analysis of C/ebpβ-haploinsufficient mice (C/ebpβ(+/-)) cartilage showed that C/ebpβ haploinsufficiency led to reduced Gadd45β gene expression in these cells. In vitro, we evaluated the effects of conditional C/EBPβ overexpression driven by the cartilage oligomeric matrix protein (Comp) promoter in mComp-tTA;pTRE-Tight-BI-DsRed-mC/ebpβ transgenic mice. C/EBPβ overexpression significantly stimulated Gadd45β gene expression in articular chondrocytes. Taken together, our data demonstrate that C/EBPβ plays a central role in controlling Gadd45β gene expression in these cells.
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Affiliation(s)
- Hirofumi Shimada
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
| | - Miguel Otero
- Laboratory for Cartilage Biology, Research Division, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | - Kaneyuki Tsuchimochi
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan; Onga Nakama Medical Association, Onga Hospital, Fukuoka, Japan
| | - Satoshi Yamasaki
- Department of Clinical Immunology and Rheumatology, Hiroshima University, Hiroshima, Japan
| | - Harutoshi Sakakima
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Fumiyo Matsuda
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Megumi Sakasegawa
- Course of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - Takao Setoguchi
- The Near-Future Locomotor Organ Medicine Creation Course (Kusunoki Kai), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Lin Xu
- Department of Developmental Biology, Harvard School of Dental Medicine And Faculty of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Mary B Goldring
- Laboratory for Cartilage Biology, Research Division, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
| | - Akihide Tanimoto
- Department of Human Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Setsuro Komiya
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kosei Ijiri
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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25
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Haseba S, Sakakima H, Kubozono T, Nakao S, Ikeda S. Combined effects of repeated sauna therapy and exercise training on cardiac function and physical activity in patients with chronic heart failure. Disabil Rehabil 2015; 38:409-15. [DOI: 10.3109/09638288.2015.1044032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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Haseba S, Nakao S, Ohira M, Yosihida A, Sakakima H. Effects of early postoperative rehabilitation on infants with congenital cardiac disease. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Ohtsuka S, Sumizono M, Matsuda F, Yoshida Y, Sakakima H. Effects of preconditioning exercise on brain damage and neurotrophic factor expression after focal brain ischemia in rats. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.2030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Sakakima H, Yoshida Y. The effect of short duration static stretching and reinnervation on the recovery of denervated soleus muscle in the rat. J Jpn Phys Ther Assoc 2015; 5:13-8. [PMID: 25792925 DOI: 10.1298/jjpta.5.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2001] [Accepted: 01/12/2002] [Indexed: 11/23/2022]
Abstract
Denervation elicits profound alterations in the morphometry of the skeletal muscle. There is evidence that the increased mechanical load placed upon the muscle via rhythmic stretching attenuates denervation induced alterations in muscle morphology. To investigate the effect of short duration static stretching (40 min/day) for denervated and reinnervated muscle, a histochemical study was performed on the soleus muscle of the rat. Twenty-one eight-week-old female Wistar rats were used. Partial denervation was carried out by locally freezing the proximal root of the sciatic nerve innervating the soleus muscle. Contralateral hindlimbs were untreated and served as control. Axonal degeneration was evident within the sciatic nerve following freezing, although variable amounts of damage were observed and thin nerve fibers were observed at 3 weeks. No clear difference of morphological change of the sciatic nerve was observed in the short duration static stretching groups (group S) or the non-stretching groups (group D). The wet weight of the denervated soleus muscles progressively declined to a minimum at 2 weeks after injury (group D, 50.8 ± 8.9%; group S, 61.3 ± 4.2%) and began to reverse in the following 3 weeks. Muscle wet weight for short duration static stretching groups similarly decreased and began to reverse in the following 3 weeks. The muscle fiber cross-sectional area also similarly changed with the muscle wet weight. The type II fiber ratios of the denervated sides were consistently higher than the control levels. In non-stretching groups, type II fibers had increased by 3 weeks after denervation (49.4%), whereas type II fiber ratios of the short duration static stretching groups decreased after 3 weeks (31.3%). These data suggests that mechanical stimuli provided by short duration static stretching can prevent the atrophy of the denervated muscle over a short period. In addition, it was indicated that short duration static stretching affected the reinnervated muscle fiber type composition. However, the reinnervation took the crucial role of recovering from the atrophy and composing the integrity of the soleus muscles.
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Affiliation(s)
- Harutoshi Sakakima
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima 890-8506, Japan
| | - Yoshihiro Yoshida
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima 890-8506, Japan
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29
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Yoshida Y, Sakakima H, Matsuda F, Ikutomo M. Midkine in repair of the injured nervous system. Br J Pharmacol 2014; 171:924-30. [PMID: 24460674 PMCID: PMC3925031 DOI: 10.1111/bph.12497] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/09/2013] [Accepted: 10/19/2013] [Indexed: 11/28/2022] Open
Abstract
Midkine (MK) is a growth factor with neurotrophic and neurite outgrowth activities. It was expressed in the peri-ischaemic area in the acute phase of cerebral infarction in rat brains. Astrocytes were the origin of MK in this occasion. MK has been assessed in terms of its effects on neural injury. The administration of MK into the lateral ventricle immediately prior to ischaemia prevented cell death in the hippocampal CA1 neurons degenerated by transient forebrain ischaemia in gerbils. MK administration was also beneficial in rats with neural injury, especially after kainic acid-induced seizures. Gene therapy with mouse MK cDNA using an adenovirus was effective in reducing the cerebral infarction volume and in increasing the number of neuronal precursor cells in the subventricular zone of the rat brain. MK mRNA and MK protein were found in spinal cord motor neurons of the anterior horn in both the acute phase of sciatic nerve injury and 3 weeks later. MK immunoreactivity was also found in the proximal side of a sciatic nerve-injured site in sciatic nerve axons. MK receptors were expressed in Schwann cells after injury, suggesting crosstalk between axons and Schwann cells. MK was also present in nerve terminals and influenced ACh receptor clustering during neuromuscular development in Xenopus. Thus, MK may also be involved in reinforcing and maintaining the synapse. All these findings indicate the therapeutic potential of MK for promoting repair of the nervous system after injury.
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Affiliation(s)
- Yoshihiro Yoshida
- School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
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30
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Ikutomo M, Sakakima H, Matsuda F, Yoshida Y. Midkine-deficient mice delayed degeneration and regeneration after skeletal muscle injury. Acta Histochem 2014; 116:319-26. [PMID: 24055194 DOI: 10.1016/j.acthis.2013.08.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 07/17/2013] [Revised: 08/13/2013] [Accepted: 08/14/2013] [Indexed: 11/28/2022]
Abstract
Midkine (MK), a heparin-binding growth factor, was previously found to be expressed in the rat myotube-forming stage. We investigated MK gene-deficient (Mdk(-/-)) mice in terms of skeletal muscle degeneration and regeneration after injury by bupivacaine injection into the tibialis anterior muscle. Injured muscles showed intense inflammatory cell infiltration. Myotubes, myofibers with centrally located nuclei in their cytoplasm, were significantly smaller in Mdk(-/-) mice than in wild type (Mdk(+/+)) mice 7 days after injury (p=0.02). The distribution of myotube sizes showed quantitative differences between the two groups at 5 and 7 days, but not at 14 days. Many small myotubes were found in the regenerative area of Mdk(-/-) mice compared with that of Mdk(+/+)mice 5 and 7 days after injury. The expression of Iba1, a macrophage marker, was significantly lower in Mdk(-/-) mice 3 days after injury (p=0.01). The number of desmin-positive cells like myoblasts in Mdk(-/-) mice was significantly fewer than that in Mdk(+/+) mice 3 days after injury. Our results suggested that deletion of MK results in a delay in regeneration, preceded by decelerated migration of macrophages to the damaged area, and that MK has a role in cell differentiation and maturation after skeletal muscle injury.
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Affiliation(s)
- Masako Ikutomo
- School of Health Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Harutoshi Sakakima
- School of Health Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Fumiyo Matsuda
- School of Health Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Yoshihiro Yoshida
- School of Health Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
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31
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Sakakima H, Khan M, Dhammu TS, Shunmugavel A, Yoshida Y, Singh I, Singh AK. Stimulation of functional recovery via the mechanisms of neurorepair by S-nitrosoglutathione and motor exercise in a rat model of transient cerebral ischemia and reperfusion. Restor Neurol Neurosci 2013; 30:383-96. [PMID: 22717646 DOI: 10.3233/rnn-2012-110209] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE Stroke disability stems from insufficient neurorepair mechanisms. Improvement of functions has been achieved through rehabilitation or therapeutic agents. Therefore, we combined exercise with a neurovascular protective agent, S-nitrosoglutathione (GSNO), to accelerate functional recovery. METHODS Stroke was induced by middle cerebral artery occlusion for 60 min followed by reperfusion in adult male rats. Animals were treated with vehicle (IR group), GSNO (0.25 mg/kg, GSNO group), rotarod exercise (EX group) and GSNO plus exercise (GSNO+EX group). The groups were studied for 14 days to determine neurorepair mechanisms and functional recovery. RESULTS Treated groups showed reduced infarction, decreased neuronal cell death, enhanced neurotrophic factors, and improved neurobehavioral functions. However, the GSNO+EX showed greater functional recovery (p < 0.05) than the GSNO or the EX group. A GSNO sub group, treated 24 hours after IR, still showed motor function recovery (p < 0.001). The protective effect of GSNO or exercise was blocked by the inhibition of Akt activity. CONCLUSIONS GSNO and exercise aid functional recovery by stimulating neurorepair mechanisms. The improvements by GSNO and exercise depend mechanistically on the Akt pathway. A combination of exercise and GSNO shows greater functional recovery. Improved recovery with GSNO, even administered 24 hours post-IR, demonstrates its clinical relevance.
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Affiliation(s)
- Harutoshi Sakakima
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC 29425, USA
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32
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Kamimura A, Sakakima H, Miyazaki M, Sakasegawa M, Ijiri K, Sunahara N, Matsuda T. Pelvic Inclination Angle and Hip Abductor Muscle Strength after Total Hip Arthroplasty. J Phys Ther Sci 2013. [DOI: 10.1589/jpts.25.215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Akiko Kamimura
- School of Health Sciences, Faculty of Medicine, Kagoshima University
- Red Cross Kagoshima Hospital
| | | | - Masashi Miyazaki
- School of Health Sciences, Faculty of Medicine, Kagoshima University
| | - Megumi Sakasegawa
- School of Health Sciences, Faculty of Medicine, Kagoshima University
| | - Kosei Ijiri
- Department of Orthopedic Surgery, Kagoshima University
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33
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Khan M, Dhammu TS, Sakakima H, Shunmugavel A, Gilg AG, Singh AK, Singh I. The inhibitory effect of S-nitrosoglutathione on blood-brain barrier disruption and peroxynitrite formation in a rat model of experimental stroke. J Neurochem 2012; 123 Suppl 2:86-97. [PMID: 23050646 PMCID: PMC3481195 DOI: 10.1111/j.1471-4159.2012.07947.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [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] [Indexed: 11/29/2022]
Abstract
The hallmark of stroke injury is endothelial dysfunction leading to blood-brain barrier (BBB) leakage and edema. Among the causative factors of BBB disruption are accelerating peroxynitrite formation and the resultant decreased bioavailability of nitric oxide (NO). S-nitrosoglutathione (GSNO), an S-nitrosylating agent, was found not only to reduce the levels of peroxynitrite but also to protect the integrity of BBB in a rat model of cerebral ischemia and reperfusion (IR). A treatment with GSNO (3 μmol/kg) after IR reduced 3-nitrotyrosine levels in and around vessels and maintained NO levels in brain. This mechanism protected endothelial function by reducing BBB leakage, increasing the expression of Zonula occludens-1 (ZO-1), decreasing edema, and reducing the expression of matrix metalloproteinase-9 and E-selectin in the neurovascular unit. An administration of the peroxynitrite-forming agent 3-morpholino sydnonimine (3 μmol/kg) at reperfusion increased BBB leakage and decreased the expression of ZO-1, supporting the involvement of peroxynitrite in BBB disruption and edema. Mechanistically, the endothelium-protecting action of GSNO was invoked by reducing the activity of nuclear factor kappa B and increasing the expression of S-nitrosylated proteins. Taken together, the results support the ability of GSNO to improve endothelial function by reducing nitroxidative stress in stroke.
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Affiliation(s)
- Mushfiquddin Khan
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC
| | - Tajinder S Dhammu
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC
| | - Harutoshi Sakakima
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC
| | | | - Anne G Gilg
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC
| | - Avtar K. Singh
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC
- Ralph H. Johnson VA Medical Center, Charleston, SC
| | - Inderjit Singh
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC
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34
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Tanabe F, Yone K, Kawabata N, Sakakima H, Matsuda F, Ishidou Y, Maeda S, Abematsu M, Komiya S, Setoguchi T. Accumulation of p62 in degenerated spinal cord under chronic mechanical compression: functional analysis of p62 and autophagy in hypoxic neuronal cells. Autophagy 2012; 7:1462-71. [PMID: 22082874 DOI: 10.4161/auto.7.12.17892] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Intracellular accumulation of altered proteins, including p62 and ubiquitinated proteins, is the basis of most neurodegenerative disorders. The relationship among the accumulation of altered proteins, autophagy, and spinal cord dysfunction by cervical spondylotic myelopathy has not been clarified. We examined the expression of p62 and autophagy markers in the chronically compressed spinal cord of tiptoe-walking Yoshimura mice. In addition, we examined the expression and roles of p62 and autophagy in hypoxic neuronal cells. Western blot analysis showed the accumulation of p62, ubiquitinated proteins, and microtubule-associated protein 1 light chain 3 (LC3), an autophagic marker, in the compressed spinal cord. Immunohistochemical examinations showed that p62 accumulated in neurons, axons, astrocytes, and oligodendrocytes. Electron microscopy showed the expression of autophagy markers, including autolysosomes and autophagic vesicles, in the compressed spinal cord. These findings suggest the presence of p62 and autophagy in the degenerated compressed spinal cord. Hypoxic stress increased the expression of p62, ubiquitinated proteins, and LC3-II in neuronal cells. In addition, LC3 turnover assay and GFP-LC3 cleavage assay showed that hypoxic stress increased autophagy flux in neuronal cells. These findings suggest that hypoxic stress induces accumulation of p62 and autophagy in neuronal cells. The forced expression of p62 decreased the number of neuronal cells under hypoxic stress. These findings suggest that p62 accumulation under hypoxic stress promotes neuronal cell death. Treatment with 3-methyladenine, an autophagy inhibitor decreased the number of neuronal cells, whereas lithium chloride, an autophagy inducer increased the number of cells under hypoxic stress. These findings suggest that autophagy promotes neuronal cell survival under hypoxic stress. Our findings suggest that pharmacological inducers of autophagy may be useful for treating cervical spondylotic myelopathy patients.
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Affiliation(s)
- Fumito Tanabe
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Kagoshima Prefecture, Japan
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35
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Khan M, Sakakima H, Dhammu TS, Anandakumar S, Singh I, Singh AK. Abstract 2741: S-Nitrosoglutathione Increases Benefit of Motor Exercise on Functional Recovery and Stimulates Neurorepair Mechanisms Following Experimental Stroke in Rats. Stroke 2012. [DOI: 10.1161/str.43.suppl_1.a2741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Stroke is the leading cause of long-term physical disability and life-long neurologic deficits. The disability stems from acute neurovascular injury and injury-induced compromised neuroplasticity. This neuroplasticity can be restored by stimulating neurotrophic factors via two possible modalities: rehabilitation activity and neurorepair therapy. Improvement of neurologic function has been achieved following brain trauma by the neurovascular protective agent S-nitrosoglutathione (GSNO). Therefore, we investigated whether GSNO stimulates the expression neurotrophic factors and enhances the benefits of motor exercise, leading to functional recovery in a rat model of experimental stroke.
Methods:
Ischemic stroke was induced by middle cerebral artery occlusion (MCAO) for 60 min followed by reperfusion in adult male rats. Injured animals were either treated with vehicle (IR group), GSNO (0.25 mg/kg, GSNO group) or underwent rotarod exercise (EX group). In the third treatment group, GSNO was combined with rotarod exercise (GSNO+EX group). The groups were compared in terms of brain infarction, neurological score, motor function, cell death, tissue structure, and the expression of the neurotrophic factors BDNF, TrKB, and myelin.
Results:
All three treated groups (GSNO, EX and GSNO+EX) showed reduced infarction, improved motor and neurological functions, and decreased apoptotic neuronal cell death compared to the IR group. However, the combination group GSNO+EX showed a trend toward greater recovery than the GSNO or EX group alone. All the three treated groups also showed enhanced expression of neurotrophic factors and improved tissue histology. A delayed intervention (24 h after IR) by GSNO also aided the functional recovery. Furthermore, the protective effect of GSNO and exercise was blunted in another set of animals by an inhibition of AKT activity using the PI3 kinase inhibitor LY 294002 compound.
Conclusion:
GSNO, like exercise, aids recovery of functions in a long-term treatment by stimulating the expression of neurotrophic factors, reducing infarctions, and decreasing cell death. A combination of exercise and GSNO shows a greater degree of improvement in neurobehavioral function. Clinical relevance of the therapy is supported by an improved functional recovery even when GSNO was administered 24 h following IR. Mechanistically, the improvements by GSNO and exercise are dependent, at least in part, on AKT activity.
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Affiliation(s)
| | | | | | | | | | - Avtar K Singh
- Med Univ of South Carolin and Ralph J Johnson VA Med Cntr, Charleston, SC
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Khan M, Sakakima H, Dhammu TS, Shunmugavel A, Im YB, Gilg AG, Singh AK, Singh I. S-nitrosoglutathione reduces oxidative injury and promotes mechanisms of neurorepair following traumatic brain injury in rats. J Neuroinflammation 2011; 8:78. [PMID: 21733162 PMCID: PMC3158546 DOI: 10.1186/1742-2094-8-78] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Accepted: 07/06/2011] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Traumatic brain injury (TBI) induces primary and secondary damage in both the endothelium and the brain parenchyma, collectively termed the neurovascular unit. While neurons die quickly by necrosis, a vicious cycle of secondary injury in endothelial cells exacerbates the initial injury in the neurovascular unit following TBI. In activated endothelial cells, excessive superoxide reacts with nitric oxide (NO) to form peroxynitrite. Peroxynitrite has been implicated in blood brain barrier (BBB) leakage, altered metabolic function, and neurobehavioral impairment. S-nitrosoglutathione (GSNO), a nitrosylation-based signaling molecule, was reported not only to reduce brain levels of peroxynitrite and oxidative metabolites but also to improve neurological function in TBI, stroke, and spinal cord injury. Therefore, we investigated whether GSNO promotes the neurorepair process by reducing the levels of peroxynitrite and the degree of oxidative injury. METHODS TBI was induced by controlled cortical impact (CCI) in adult male rats. GSNO or 3-Morpholino-sydnonimine (SIN-1) (50 μg/kg body weight) was administered orally two hours following CCI. The same dose was repeated daily until endpoints. GSNO-treated (GSNO group) or SIN-1-treated (SIN-1 group) injured animals were compared with vehicle-treated injured animals (TBI group) and vehicle-treated sham-operated animals (Sham group) in terms of peroxynitrite, NO, glutathione (GSH), lipid peroxidation, blood brain barrier (BBB) leakage, edema, inflammation, tissue structure, axon/myelin integrity, and neurotrophic factors. RESULTS SIN-1 treatment of TBI increased whereas GSNO treatment decreased peroxynitrite, lipid peroxides/aldehydes, BBB leakage, inflammation and edema in a short-term treatment (4-48 hours). GSNO also reduced brain infarctions and enhanced the levels of NO and GSH. In a long-term treatment (14 days), GSNO protected axonal integrity, maintained myelin levels, promoted synaptic plasticity, and enhanced the expression of neurotrophic factors. CONCLUSION Our findings indicate the participation of peroxynitrite in the pathobiology of TBI. GSNO treatment of TBI not only reduces peroxynitrite but also protects the integrity of the neurovascular unit, indicating that GSNO blunts the deleterious effects of peroxynitrite. A long-term treatment of TBI with the same low dose of GSNO promotes synaptic plasticity and enhances the expression of neurotrophic factors. These results support that GSNO reduces the levels of oxidative metabolites, protects the neurovascular unit, and promotes neurorepair mechanisms in TBI.
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Affiliation(s)
- Mushfiquddin Khan
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC 29425, USA
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Abstract
Aim Exercise can be used to enhance neuroplasticity and facilitate motor recovery after a stroke in rats. We investigated whether treadmill running could reduce brain damage and enhance the expression of midkine (MK) and nerve growth factor (NGF), increase angiogenesis and decrease the expression of caspase-3. Methods Seventy-seven Wistar rats were split into three experimental groups (ischaemia-control: 36, ischaemia-exercise: 36, sham-exercise: 5). Stroke was induced by 90-min left middle cerebral artery occlusion using an intraluminal filament. Beginning on the following day, the rats were made to run on a treadmill for 20 min once a day for a maximum of 28 consecutive days. Functional recovery after ischaemia was assessed using the beam-walking test and a neurological evaluation scale in all rats. Infarct volume, and the expression of MK, NGF, anti-platelet-endothelial cell adhesion molecule (PECAM-1), and caspase-3 were evaluated at 1, 3, 5, 7, 14 and 28 days after the induction of ischaemia. Results Over time motor coordination and neurological deficits improved more in the exercised group than in the non-exercised group. The infarct volume in the exercised group (12.4 ± 0.8%) subjected to treadmill running for 28 days was significantly decreased compared with that in the control group (19.8 ± 4.2%, P < 0.01). The cellular expression levels of MK, NGF and PECAM-1 were significantly increased while that of caspase-3 was decreased in the peri-infarct area of the exercised rats. Conclusions Our findings show that treadmill exercise improves motor behaviour and reduces neurological deficits and infarct volume, suggesting that it may aid recovery from central nervous system injury.
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Affiliation(s)
- F Matsuda
- School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.
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Shimada H, Sakakima H, Tsuchimochi K, Matsuda F, Komiya S, Goldring MB, Ijiri K. Senescence of chondrocytes in aging articular cartilage: GADD45β mediates p21 expression in association with C/EBPβ in senescence-accelerated mice. Pathol Res Pract 2011; 207:225-31. [PMID: 21353395 DOI: 10.1016/j.prp.2011.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 01/13/2011] [Accepted: 01/26/2011] [Indexed: 01/06/2023]
Abstract
Growth arrest and DNA damage-inducible protein 45β (GADD45β) is expressed in normal and early osteoarthritic articular cartilage. We recently reported that GADD45β enhances CCAAT/enhancer binding protein β (C/EBPβ) activation in vitro. This study was undertaken in order to determine whether GADD45β is expressed with C/EBPβ in aging articular cartilage. We also investigated whether the synergistic expression of GADD45β and C/EBPβ may be involved in the mechanism of chondrocyte senescence. Senescence-accelerated mice (SAMP1) were used as a model of aging. GADD45β, C/EBPβ, and p21 were analyzed by immunohistochemistry. A luciferase reporter assay using ATDC5 cells was performed in order to examine p21 as a target gene of the GADD45β/C/EBPβ cascade. GADD45β exhibited increased expression in the aging articular cartilage of SAMP1 mice compared to that in control mice. The co-localization of GADD45β and C/EBPβ was confirmed by double immunostaining. The synergistic mechanisms of GADD45β and C/EBPβ on the gene regulation of p21, a molecule related to cellular senescence, were verified by a p21-luciferase reporter assay. Co-expression of C/EBPβ and p21 was confirmed. These observations suggest that the synergism between GADD45β and C/EBPβ may play an important role in cellular senescence in the aging articular cartilage.
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Affiliation(s)
- Hirofumi Shimada
- Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
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Matsuda F, Sakakima H, Yoshida Y. The effects of early exercise on brain damage and recovery after focal cerebral infarction in rats. Acta Physiol (Oxf) 2011; 201:275-87. [PMID: 20726846 PMCID: PMC3045711 DOI: 10.1111/j.1748-1708.2010.02174.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [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: 01/14/2010] [Revised: 02/12/2010] [Accepted: 07/24/2010] [Indexed: 01/30/2023]
Abstract
AIM Exercise can be used to enhance neuroplasticity and facilitate motor recovery after a stroke in rats. We investigated whether treadmill running could reduce brain damage and enhance the expression of midkine (MK) and nerve growth factor (NGF), increase angiogenesis and decrease the expression of caspase-3. METHODS Seventy-seven Wistar rats were split into three experimental groups (ischaemia-control: 36, ischaemia-exercise: 36, sham-exercise: 5). Stroke was induced by 90-min left middle cerebral artery occlusion using an intraluminal filament. Beginning on the following day, the rats were made to run on a treadmill for 20 min once a day for a maximum of 28 consecutive days. Functional recovery after ischaemia was assessed using the beamwalking test and a neurological evaluation scale in all rats. Infarct volume, and the expression of MK, NGF, anti-platelet-endothelial cell adhesion molecule (PECAM-1), and caspase-3 were evaluated at 1, 3, 5, 7, 14 and 28 days after the induction of ischaemia. RESULTS Over time motor coordination and neurological deficits improved more in the exercised group than in the non-exercised group. The infarct volume in the exercised group (12.4 ± 0.8%) subjected to treadmill running for 28 days was significantly decreased compared with that in the control group (19.8 ± 4.2%, P < 0.01). The cellular expression levels of MK, NGF and PECAM-1 were significantly increased while that of caspase-3 was decreased in the peri-infarct area of the exercised rats. CONCLUSIONS Our findings show that treadmill exercise improves motor behaviour and reduces neurological deficits and infarct volume, suggesting that it may aid recovery from central nervous system injury.
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Affiliation(s)
- F Matsuda
- School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.
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Miyazaki M, Sakakima H, Goto T, Kiyama R, Matsuzaki T, Ijiri K, Yoshida Y. Isokinetic trunk and knee muscle strengths and gait performance in walking patients with T-cell lymphotropic virus type 1-associated myelopathy/ tropical spastic paraparesis (HAM/TSP). J Jpn Phys Ther Assoc 2011; 14:19-26. [PMID: 25792894 DOI: 10.1298/jjpta.vol14_003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 10/03/2011] [Indexed: 11/23/2022]
Abstract
The aim of this study was to investigate the isokinetic trunk and knee muscle strengths, and examine the clinical relevance of dynamic muscle strengths and gait performance in walking patients with human T-cell lymphotropic virus type 1-associated myelopathy/ tropical spastic paraparesis (HAM/TSP). Thirteen patients with HAM/TSP (8 females and 5 males, aged 38-76) and 13 sex- and age-matched healthy control subjects participated in the study. We assessed gait speed, stride length, cadence; and maximal isokinetic torque of trunk and knee extensors and flexors at 30°/s, 60°/s and 90°/s using a Biodex System 3 dynamometer. Furthermore, we calculated the isokinetic trunk extensor/flexor (E/F) and hamstrings/quadriceps (H/Q) strength ratios (parameter of the muscle strength balance about the trunk and knee joint). Compared with the age-matched controls, the patients with HAM/TSP had significantly reduced gait speed, stride length and cadence (P < 0.05). Peak torque values related to body weight (PTBW) were significantly reduced, especially for the knee flexors (P < 0.05). For the knee extensors, the PTBW values were significantly reduced at an increased angular velocity (P < 0.05). The PTBW of knee flexors was positively correlated with gait speed and cadence in the patients with HAM/TSP. The H/Q ratio but not E/F ratio was significantly decreased compared with the control. Our results indicated that the isokinetic trunk and knee muscle performance had reduced from the ambulatory stage, and suggested the deterioration in knee muscle performance to be associated with gait disturbance in walking HAM/TSP patients.
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Affiliation(s)
- Masashi Miyazaki
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Harutoshi Sakakima
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Tatsushi Goto
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Ryoji Kiyama
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
| | | | - Kosei Ijiri
- Department of Orthopaedic Surgery, Kagoshima University
| | - Yoshihiro Yoshida
- School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8544, Japan
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Zenmyo M, Tanimoto A, Sakakima H, Yokouchi M, Nagano S, Yamamoto T, Ishido Y, Komiya S, Ijiri K. Gadd45β expression in chondrosarcoma: a pilot study for diagnostic and biological implications in histological grading. Diagn Pathol 2010; 5:69. [PMID: 20942912 PMCID: PMC2965710 DOI: 10.1186/1746-1596-5-69] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 10/13/2010] [Indexed: 11/16/2022] Open
Abstract
Background Although the diagnosis of chondrosarcoma, especially the distinction between enchondroma and low-grade chondrosarcoma or low-grade chondrosarcoma and high-grade chondrosarcoma, is pathologically difficult, differential diagnosis is very important because the treatment strategies for these diseases are completely different. The grading system is crucial in predicting biologic behavior and prognosis, however, exact pathological grading is difficult using only routine examinations because the criteria of the grading system are not necessarily definitive. Growth arrest and DNA damage-inducible protein 45β (GADD45β) is an essential molecule for chondrocytes during terminal differentiation. In the present study, we investigated the immunohistochemical expression of GADD45β in enchondroma, and chondrosarcoma of histological grades I, II, and III, to clarify the diagnostic significance of GADD45β in pathological grading of chondrosarcoma. Methods Twenty samples (enchondroma = 6, chondrosarcoma grade I = 7, grade II = 6, grade III = 1) were used for immunohistochemical analysis to investigate the expression of GADD45β. Quantitative analysis was performed to compare the number of GADD45β positive cells and pathological grading. Results Over 70% of the cells in enchondromas expressed GADD45β. On the other hand, the expression of GADD45β decreased significantly according to the histological grade of chondrosarcoma (grade I: 45%; grade II: 13.8%; and grade III: 3.8%). Conclusions The association of GADD45β expression and pathological grading of chondrosarcoma in the present study suggests that the immunohistochemical study of GADD45β may be a specific diagnostic parameter for chondrosarcoma cell differentiation.
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Affiliation(s)
- Michihisa Zenmyo
- Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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Zenmyo M, Ijiri K, Sasaki H, Sakakima H, Taketomi E, Nagayoshi R, Yamamoto T, Komiya S. Magnetic Resonance Angiography for Vertebral Artery Evaluation in Rheumatoid Arthritis Patients. Neurosurgery 2010; 66:1174-80; discussion 1180. [DOI: 10.1227/01.neu.0000369192.96801.0b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Michihisa Zenmyo
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Kosei Ijiri
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Hiromi Sasaki
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Harutoshi Sakakima
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Eiji Taketomi
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Ryusaku Nagayoshi
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Takuya Yamamoto
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
| | - Setsuro Komiya
- Department of Orthopaedic Surgery, Kagoshima Graduate School of Medical and Dental Science, Kagoshima Japan
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Sakakima H, Yoshida Y, Yamazaki Y, Matsuda F, Ikutomo M, Ijiri K, Muramatsu H, Muramatsu T, Kadomatsu K. Disruption of the midkine gene (Mdk) delays degeneration and regeneration in injured peripheral nerve. J Neurosci Res 2009; 87:2908-15. [DOI: 10.1002/jnr.22127] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Sakakima H, Yoshida Y, Matsuda F, Ikutomo M. Disruption of the midkine gene (Mdk) delays degeneration and regeneration in injured peripheral nerve. Neurosci Res 2009. [DOI: 10.1016/j.neures.2009.09.836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Matsuda F, Sakakima H, Ikutomo M, Yoshida Y. The effects of early exercise on brain damage and recovery after focal cerebral infarction in rats. Neurosci Res 2009. [DOI: 10.1016/j.neures.2009.09.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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46
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Yoshida Y, Ikematsu S, Muramatsu H, Sakakima H, Mizuma N, Matsuda F, Sonoda K, Umehara F, Ohkubo R, Matsuura E, Goto M, Osame M, Muramatsu T. Expression of the heparin-binding growth factor midkine in the cerebrospinal fluid of patients with neurological disorders. Intern Med 2008; 47:83-9. [PMID: 18195496 DOI: 10.2169/internalmedicine.47.0260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE This study was to clarify the roles of midkine (MK) in the brain. METHODS We determined cerebrospinal fluid MK levels in patients with neurological disorders by enzyme-linked immunoassay and immunostained autopsied brain samples in patients with meningitis. RESULTS MK levels were 0.37+/-0.21 ng/ml in controls (n=46, mean +/- S.D.), 0.67+/-0.19 ng/ml in patients with cerebral infarction (n=8), 1.78+/-1.32 ng/ml in patients with meningitis (n=25; ANOVA and post-hoc Fisher's PLSD test, p<0.0001), 0.31+/-0.25 ng/ml in patients with human T-lymphotrophic virus type I-associated myelopathy/tropical spastic paraparesis (n=29), and 0.42+/-0.17 ng/ml in patients with amyotrophic lateral sclerosis (n=8). The regression equations were Y=0.005X+0.498 (Y, CSF MK level; X, cell number) and Y=0.007X+0.326 (Y, MK level; X, protein level) for all CSF samples. Autopsy brain samples from patients with meningitis expressed MK weakly in mononuclear cells on immunohistochemical examination. Western blot and polymerase chain reaction analyses showed that leukocytes were MK positive. CSF MK levels were not high in patients with cerebral infarction but were increased in patients with meningitis. CSF MK levels were high in normal controls, compared to those of other cytokines. MK was expressed in choroid plexus of normal brain and released there. CONCLUSION Our findings suggested that MK may maintain normal adult brain as a neurotrophic factor, and that MK may be released from leucocytes in brain of patients with meningitis as an immunological mediator.
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Affiliation(s)
- Yoshihiro Yoshida
- School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.
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Sakakima H, Kamizono T, Matsuda F, Izumo K, Ijiri K, Yoshida Y. Midkine and its receptor in regenerating rat skeletal muscle after bupivacaine injection. Acta Histochem 2006; 108:357-64. [PMID: 16965805 DOI: 10.1016/j.acthis.2006.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2005] [Revised: 04/11/2006] [Accepted: 04/18/2006] [Indexed: 02/04/2023]
Abstract
Midkine (MK) is a multifunctional cytokine and heparin-binding growth factor with neurotrophic activity. MK and its receptor were examined for up to 14 days in a chemically injured rat muscle regeneration process caused by the injection of bupivacaine using immunohistochemical and Western blot analysis. Although MK immunoreactivity was not detectable in the mature uninjured skeletal muscle, MK was strongly detected in the regenerating muscle cells. MK immunoreactivity was observed in the myoblast-like cells and myotubes, which were desmin-positive cells, whereas it was not detectable in the surviving normal muscle fibers. Most myotubes labeling for desmin showed MK immunoreactivity 5-7days after the injury. However, MK immunoreactivity was not detected 14 days after the injury. Immunoreactivity of low-density lipoprotein receptor-related protein (LRP), a cell membrane receptor of MK, was detected in the regenerating muscle cells, whereas it was not detected in the normal adult skeletal muscle and surviving muscle. These findings suggested that MK was involved. MK may have a role for differentiation during skeletal muscle regeneration and may be taken up in an autocrine fashion with LRP.
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Affiliation(s)
- Harutoshi Sakakima
- School of Health Sciences, Faculty of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
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Sakakima H, Ijiri K, Taketomi E, Iwao A, Kiyama R, Tawaratsumita M, Ishido Y, Komiya S, Matsuda T. The Trial Development of an Original C-Shaped Cervical Collar (Kagoshima-Sekijyuji, KS Collar) for Patients with Rheumatoid Arthritis. J Phys Ther Sci 2005. [DOI: 10.1589/jpts.17.63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
| | - Kosei Ijiri
- School of Health Sciences, Faculty of Medicine, Kagoshima University
| | | | - Asako Iwao
- School of Health Sciences, Faculty of Medicine, Kagoshima University
| | - Ryoji Kiyama
- School of Health Sciences, Faculty of Medicine, Kagoshima University
| | | | | | - Seturo Komiya
- Department of Neuro-Musculoskeletal Disorder, Orthopaedic Surgery, Graduate School of Medicine and Dentistry, Kagoshima University
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Ijiri K, Tsuruga H, Sakakima H, Tomita K, Taniguchi N, Shimoonoda K, Komiya S, Goldring MB, Majima HJ, Matsuyama T. Increased expression of humanin peptide in diffuse-type pigmented villonodular synovitis: implication of its mitochondrial abnormality. Ann Rheum Dis 2004; 64:816-23. [PMID: 15567815 PMCID: PMC1755539 DOI: 10.1136/ard.2004.025445] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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: 11/03/2022]
Abstract
OBJECTIVES To define the pathogenesis of pigmented villonodular synovitis (PVNS), by searching for highly expressed genes in primary synovial cells from patients with PVNS. METHODS A combination of subtraction cloning and Southern colony hybridisation was used to detect highly expressed genes in PVNS in comparison with rheumatoid synovial cells. Northern hybridisation was performed to confirm the differential expression of the humanin gene in PVNS. Expression of the humanin peptide was analysed by western blotting and immunohistochemistry. Electron microscopic immunohistochemistry was performed to investigate the distribution of this peptide within the cell. RESULTS 68 highly expressed genes were identified in PVNS. Humanin genes were strongly expressed in diffuse-type PVNS, but were barely detected in nodular-type PVNS, rheumatoid arthritis, or osteoarthritis. Humanin peptide was identified in synovium from diffuse-type PVNS, and most of the positive cells were distributed in the deep layer of the synovial tissue. Double staining with anti-humanin and anti-heat shock protein 60 showed that humanin was expressed mainly in mitochondria. Electron microscopy disclosed immunolocalisation of this peptide, predominantly around dense iron deposits within the siderosome. CONCLUSIONS Increased expression of the humanin peptide in mitochondria and siderosomes is characteristic of synovial cells from diffuse-type PVNS. Humanin is an anti-apoptotic peptide which is encoded in the mitochondrial genome. Present findings suggest that mitochondrial dysfunction may be the principal factor in pathogenesis of diffuse-type PVNS and that humanin peptide may play a part in the neoplastic process in this form of PVNS.
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Affiliation(s)
- K Ijiri
- Beth Israel Deaconess Medical Center, Harvard Institutes of Medicine, Room 237, 4 Blackfan Circle, Boston, MA 02115, USA.
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Sakakima H, Yoshida Y, Kadomatsu K, Yuzawa Y, Matsuo S, Muramatsu T. Midkine expression in rat spinal motor neurons following sciatic nerve injury. Brain Res Dev Brain Res 2004; 153:251-60. [PMID: 15527893 DOI: 10.1016/j.devbrainres.2004.09.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/14/2004] [Indexed: 12/29/2022]
Abstract
Midkine (MK), a heparin-binding growth factor, is produced in the developing and damaged nervous system. However, the role of MK in peripheral nerve injury has not been clarified. Here, we investigated MK expression in lumbar spinal motor neurons after rat sciatic nerve injury by immunohistochemical, in situ hybridization, and Western blot analyses. The rat sciatic nerve showed complete degeneration after local freezing. Numerous regenerated myelinated and thin nerve fibers were observed 3 weeks after injury. Intense MK immunoreactivity was detected in the ipsilateral spinal motor neurons of the anterior horn of the lumbar spinal cord after 1 day and in ipsilateral and contralateral spinal motor neurons from 4 days to 1 week after injury. It decreased after 2 weeks and again transiently increased in spinal motor neurons after 3 weeks. MK was found in the motor neurons and axon of the sciatic nerve. However, it was not detected in normal neurons and axon. In situ hybridization showed the expression of MK mRNA in lumbar spinal motor neurons of the anterior horn, but it was not present in Schwann cells or non-neuronal cells. Low-density lipoprotein receptor-related protein (LRP) immunoreactivity, a cell membrane receptor of MK, was observed in anterior horn motor neurons, but receptor-type protein tyrosine phosphatase zeta (PTPzeta) immunoreactivity as a signaling receptor complex of MK was not observed. LRP and PTPzeta immunoreactivities were observed in Schwann cells of the injured and uninjured sciatic nerve. Our findings suggest that MK is synthesized, released, and taken up in anterior horn motor neurons in an autocrine fashion with LRP. MK may have a role in degeneration and regeneration after peripheral nerve injury.
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Affiliation(s)
- Harutoshi Sakakima
- School of Medical Sciences, Faculty of Medicine, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan.
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