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Zabroda EN, Amelina VV, Gordeev AD, Sakovsky IV, Bochkarev MV, Kolomeichuk SN, Kayumova EE, Vasilieva EY, Sviryaev YV, Korostovtseva LS. [Brain-derived neurotrophic factor in the acute and early recovery period of ischemic stroke: the role of nocturnal hypoxemia]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:72-78. [PMID: 38934669 DOI: 10.17116/jnevro202412405272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
OBJECTIVE To study the relationship between brain-derived neurotrophic factor (BDNF) and the severity of nocturnal hypoxemia in patients in the acute and early recovery period of ischemic stroke (IS). MATERIAL AND METHODS We enrolled 44 patients (27 men, 17 women), aged 18-85 years, in the acute phase of IS. At 3-month follow-up, 35 people were examined (21 men and 14 women). In the acute period, in addition to routine diagnostic procedures, respiratory monitoring was carried out, and the serum level of BDNF was measured by enzyme-linked immunosorbent assay. BDNF level was also evaluated at 3-month follow-up visit. Neurological status and its dynamics in the acute period of stroke were assessed as part of the clinical routine according to the National Institutes of Health Stroke Scale (NIHSS) at admission and discharge. RESULTS We found a direct correlation between the duration of hypoxemia with SpO2 less than 90% (r=0.327, p=0.035) and less than 85% (r=0.461, p=0.003) and BDNF level in the acute phase of IS. BDNF level in the acute period of IS was negatively correlated with the minimum saturation value (r=-0.328, p=0.034). There was a direct relationship between BDNF level in the early recovery period and the duration of hypoxemia with SpO2 less than 85% (r=-0.389, p=0.028). A regression model showed that BDNF level was associated with the minimum SpO2 level. No significant associations were found with indicators of sleep-disordered breathing severity, such as the apnea-hypopnea index and the oxygen desaturation index. CONCLUSION The severity of nocturnal hypoxemia is associated with the increase in BDNF levels both in the acute and recovery periods of IS, regardless of the presence of concomitant breathing disorders during sleep.
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Affiliation(s)
- E N Zabroda
- Almazov National Medical Research Centre, St. Petersburg, Russia
- Saint Petersburg State University, St. Petersburg, Russia
| | - V V Amelina
- Almazov National Medical Research Centre, St. Petersburg, Russia
- Herzen State Pedagogical University, St. Petersburg, Russia
| | - A D Gordeev
- Almazov National Medical Research Centre, St. Petersburg, Russia
- Saint Petersburg State University, St. Petersburg, Russia
| | - I V Sakovsky
- Saint Petersburg Medical and Social Institute, St. Petersburg, Russia
| | - M V Bochkarev
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - S N Kolomeichuk
- Institute of Biology of Karelian Research Centre, Petrozavodsk, Russia
| | - E E Kayumova
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - E Y Vasilieva
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Y V Sviryaev
- Almazov National Medical Research Centre, St. Petersburg, Russia
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The effect of antecedent-conditioning high-intensity interval training on BDNF regulation through PGC-1α pathway following cerebral ischemia. Brain Res 2019; 1729:146618. [PMID: 31866362 DOI: 10.1016/j.brainres.2019.146618] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/11/2019] [Accepted: 12/17/2019] [Indexed: 11/23/2022]
Abstract
Earlier studies have demonstrated that exercise training can result in the diminishing of ischemic stroke-induced damages as well as BDNF misregulation. However, the underlying mechanisms of BDNF changes in response to ischemic stroke and exercise are still not entirely understood. Therefore, the aim of the current study was to determine whether high-intensity interval training (HIIT) in hippocampus of rat model of ischemic stroke intercedes PPARγ coactivator 1α (PGC1α)-pathway factors and BDNF regulation following induction of ischemic stroke. For this purpose, in this study, induction of middle cerebral artery occlusion (MCAO) was accomplished following the completion of HIIT. To define the molecular mechanisms that might be responsible for HIIT-associated improvements subsequent to cerebral ischemia, we likewise evaluated PGC-1α-pathway factors that may be essential for BDNF upregulation after MCAO via immunofluorescence tracking and ELISA immunoassay. Taking our findings together, three weeks of antecedent-HIIT resulted in more expression and delivery of BDNF in brain and plasma following MCAO through PGC-1α-pathway (p < 0.05). The present investigation also found a close relationship between expressed PGC-1α-pathway factors in brain and their concentrations in plasma (p < 0.05). In conclusion, findings of the current study exhibited that induction of cerebral ischemia as well as HIIT intervention both were associated with expression of PGC-1α-pathway factors in brain and their deliverance to blood. Consequently, these alterations may be considered as a protective factor against post-stroke neurological and functional disorders in the stroke model.
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Post stroke depression: The sequelae of cerebral stroke. Neurosci Biobehav Rev 2018; 90:104-114. [DOI: 10.1016/j.neubiorev.2018.04.005] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 03/12/2018] [Accepted: 04/09/2018] [Indexed: 12/14/2022]
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The beneficial role of early exercise training following stroke and possible mechanisms. Life Sci 2018; 198:32-37. [DOI: 10.1016/j.lfs.2018.02.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/04/2018] [Accepted: 02/12/2018] [Indexed: 12/21/2022]
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Abbasian S, Rastegar MM M. Is the Intensity or Duration of Treadmill Training Important for Stroke Patients? A Meta-Analysis. J Stroke Cerebrovasc Dis 2018; 27:32-43. [DOI: 10.1016/j.jstrokecerebrovasdis.2017.09.061] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 08/20/2017] [Accepted: 09/29/2017] [Indexed: 11/26/2022] Open
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Huang JC, Li YF, Zhao FY, Qu Y, Mu DZ. [Protective effect of histone acetylation against cortical injury in neonatal rats]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2017; 19:81-87. [PMID: 28100329 PMCID: PMC7390123 DOI: 10.7499/j.issn.1008-8830.2017.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the protective effect of histone acetylation against hypoxic-ischemic cortical injury in neonatal rats. METHODS A total of 90 neonatal rats aged 3 days were divided into three groups: sham-operation, cortical injury model, and sodium butyrate (a histone deacetylase inhibitor) treatment. The rats in the model and the sodium butyrate treatment groups were intraperitoneally injected with lipopolysaccharide (0.05 mg/kg), and then right common carotid artery ligation was performed 2 hours later and the rats were put in a hypoxic chamber (oxygen concentration 6.5%) for 90 minutes. The rats in the sham-operation group were intraperitoneally injected with normal saline and the right common carotid artery was only separated and exposed without ligation or hypoxic treatment. The rats in the sodium butyrate treatment group were intraperitoneally injected with sodium butyrate (300 mg/kg) immediately after establishment of the cortical injury model once a day for 7 days. Those in the sham-operation and the model groups were injected with the same volume of normal saline. At 7 days after establishment of the model, Western blot was used to measure the protein expression of histone H3 (HH3), acetylated histone H3 (AH3), B-cell lymphoma/leukemia-2 (Bcl-2), Bcl-2-associated X protein (BAX), cleaved caspase-3 (CC3), and brain-derived neurotrophic factor (BDNF). Immunofluorescence assay was used to measure the expression of 5-bromo-2'-deoxyuridine (BrdU) as the cortex cell proliferation index. RESULTS The sodium butyrate treatment group had a significantly lower HH3/AH3 ratio than the model group (P<0.05), which suggested that the sodium butyrate treatment group had increased acetylation of HH3. Compared with the model group, the sodium butyrate treatment group had a significant increase in Bcl-2/Bax ratio, a significant reduction in CC3 expression, and a significant increase in BDNF expression (P<0.05). The sodium butyrate treatment group had a significant increase in the number of BrdU-positive cells in the cortex compared with the model group (P<0.05), and BrdU was mainly expressed in the neurons. CONCLUSIONS Increased histone acetylation may protect neonatal rats against cortical injury by reducing apoptosis and promoting regeneration of neurons. The mechanism may be associated with increased expression of BDNF.
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Affiliation(s)
- Ji-Chong Huang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China.
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Hasan SMM, Rancourt SN, Austin MW, Ploughman M. Defining Optimal Aerobic Exercise Parameters to Affect Complex Motor and Cognitive Outcomes after Stroke: A Systematic Review and Synthesis. Neural Plast 2016; 2016:2961573. [PMID: 26881101 PMCID: PMC4736968 DOI: 10.1155/2016/2961573] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 11/27/2015] [Accepted: 11/29/2015] [Indexed: 01/21/2023] Open
Abstract
Although poststroke aerobic exercise (AE) increases markers of neuroplasticity and protects perilesional tissue, the degree to which it enhances complex motor or cognitive outcomes is unknown. Previous research suggests that timing and dosage of exercise may be important. We synthesized data from clinical and animal studies in order to determine optimal AE training parameters and recovery outcomes for future research. Using predefined criteria, we included clinical trials of stroke of any type or duration and animal studies employing any established models of stroke. Of the 5,259 titles returned, 52 articles met our criteria, measuring the effects of AE on balance, lower extremity coordination, upper limb motor skills, learning, processing speed, memory, and executive function. We found that early-initiated low-to-moderate intensity AE improved locomotor coordination in rodents. In clinical trials, AE improved balance and lower limb coordination irrespective of intervention modality or parameter. In contrast, fine upper limb recovery was relatively resistant to AE. In terms of cognitive outcomes, poststroke AE in animals improved memory and learning, except when training was too intense. However, in clinical trials, combined training protocols more consistently improved cognition. We noted a paucity of studies examining the benefits of AE on recovery beyond cessation of the intervention.
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Affiliation(s)
- S. M. Mahmudul Hasan
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Samantha N. Rancourt
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Mark W. Austin
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Michelle Ploughman
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
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Sung YH. Effects of treadmill exercise on hippocampal neurogenesis in an MPTP /probenecid-induced Parkinson's disease mouse model. J Phys Ther Sci 2015; 27:3203-6. [PMID: 26644675 PMCID: PMC4668166 DOI: 10.1589/jpts.27.3203] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 07/16/2015] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study aimed to investigate the effect of treadmill exercise on non-motor
function, specifically long-term memory, in a
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid-induced Parkinson’s disease mouse
model. [Methods] A mouse model of Parkinson’s disease was developed by injecting 20 mg/kg
of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine and 250 mg/kg of probenecid (P). We
divided in into four groups: probenecid group, probenecid-exercise group,
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid group, and
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid-exercise group. Mice in the
exercise groups ran on treadmill for 30 min/day, five times per week for 4 weeks.
[Results] Latency in the passive avoidance test increased in the
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid-exercise group compared with
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid group. In addition, the number of
5-bromo-2-deoxyuridine/NeuN-positive cells and
5-bromo-2-deoxyuridine/doublecortin-positive cells in the hippocampal dentate gyrus was
higher in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid-exercise group than
that in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid group. These changes
were associated with the expression of brain-derived neurotrophic factor in the
hippocampus. [Conclusion] Our results suggest that treadmill exercise may improve
long-term memory in Parkinson’s disease mice by facilitating neurogenesis via increased
expression of neurotrophic factors.
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Affiliation(s)
- Yun-Hee Sung
- Department of Physical Therapy, College of Natural Sciences, Kyungnam University, Republic of Korea
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Hong BY, Kim JS, Lee KB, Lim SH. The effect of sesamol on rats with ischemic stroke. J Phys Ther Sci 2015; 27:1771-3. [PMID: 26180317 PMCID: PMC4499980 DOI: 10.1589/jpts.27.1771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 02/14/2015] [Indexed: 11/24/2022] Open
Abstract
[Purpose] Although previous studies have demonstrated several effects of sesamol on
neurological diseases, its effects on ischemic stroke are unclear. We evaluated the direct
effects of sesamol on infarcts and efficacy in terms of functional improvement in rats
with transient middle cerebral artery occlusion (MCAO). [Subjects and Methods] Male
Sprague Dawley rats (n = 30) were randomly divided into two groups: an MCAO with sesamol
group and an MCAO group. MCAO was induced for 2 h, and sesamol was administered in the
treatment group just after reperfusion. Infarct size was calculated 5 days after MCAO.
Efficacy in function was assessed using a modified sticky-tape test (MST) and percent
weight borne on the paretic leg during 5 days. [Results] Infarct volumes did not differ
significantly between the two MCAO groups. The values of MST did not differ between the
two MCAO groups. Based on the values of percent weight borne on the paretic leg, function
of the hindlimb in the MCAO with sesamol group was significantly better than in the MCAO
group throughout the experimental period. [Conclusion] These results demonstrate that
sesamol induced functional improvements during 5 days after MCAO, and could be a useful
addition to the therapeutic regimen for the treatment of ischemic stroke.
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Affiliation(s)
- Bo Young Hong
- Department of Rehabilitation Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea
| | - Joon Sung Kim
- Department of Rehabilitation Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea
| | - Kyoung Bo Lee
- Department of Rehabilitation Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea
| | - Seong Hoon Lim
- Department of Rehabilitation Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea
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Larpthaveesarp A, Ferriero DM, Gonzalez FF. Growth factors for the treatment of ischemic brain injury (growth factor treatment). Brain Sci 2015; 5:165-77. [PMID: 25942688 PMCID: PMC4493462 DOI: 10.3390/brainsci5020165] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 04/13/2015] [Accepted: 04/21/2015] [Indexed: 12/11/2022] Open
Abstract
In recent years, growth factor therapy has emerged as a potential treatment for ischemic brain injury. The efficacy of therapies that either directly introduce or stimulate local production of growth factors and their receptors in damaged brain tissue has been tested in a multitude of models for different Central Nervous System (CNS) diseases. These growth factors include erythropoietin (EPO), vascular endothelial growth factor (VEGF), brain-derived neurotrophic factor (BDNF), and insulin-like growth factor (IGF-1), among others. Despite the promise shown in animal models, the particular growth factors that should be used to maximize both brain protection and repair, and the therapeutic critical period, are not well defined. We will review current pre-clinical and clinical evidence for growth factor therapies in treating different causes of brain injury, as well as issues to be addressed prior to application in humans.
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Affiliation(s)
- Amara Larpthaveesarp
- Department of Pediatrics, University of California, San Francisco, CA 94158, USA.
| | - Donna M Ferriero
- Departments of Pediatrics and Neurology, University of California, San Francisco, CA 94158, USA.
| | - Fernando F Gonzalez
- Department of Pediatrics, University of California, San Francisco, CA 94158, USA.
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Jeon YK, Ha CH. Expression of brain-derived neurotrophic factor, IGF-1 and cortisol elicited by regular aerobic exercise in adolescents. J Phys Ther Sci 2015; 27:737-41. [PMID: 25931720 PMCID: PMC4395704 DOI: 10.1589/jpts.27.737] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 10/21/2014] [Indexed: 01/17/2023] Open
Abstract
[Purpose] This study was conducted on adolescent subjects whose brains are still developing with the purpose of identifying the effect of 8 weeks duration of aerobic exercises on the expression of BDNF, IGF-1 and cortisol, to identify effect of aerobic exercise on the expression of cortisol, BDNF and IGF-1 related to nerve cell growth. [Subjects and Methods] The subjects were 20 junior-high school students with no history of physical illness. The students were divided into an exercise group and a control group. The exercise group performed 3 treadmill exercise times per week for 8 weeks. The exercise time for the consumption of 200 kcal was calculated and the exercises were performed by each individual for 8 weeks. [Results] The exercise group showed statistically significant in increases serum BDNF and IGF-1 after 8 weeks, but cortisol showed no significant change. There were statistically significant differences between the groups in serum BDNF and IGF-1 after 8 weeks, but the difference in cortisol levels was not significant. [Conclusion] We found that long-term regular aerobic exercises has a positive effect on the enhancement of serum BDNF levels at rest and IGF-1 of adolescents who are still undergoing through brain developments.
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Affiliation(s)
- Yong Kyun Jeon
- Department of Physical Education, Dankook University, Republic of Korea
| | - Chang Ho Ha
- Institute of Social Physical Education, Dongguk University, Republic of Korea ; Department of Human Performance and Leisure Studies, North Carolina A&T State University, USA
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Gadd45b Mediates Axonal Plasticity and Subsequent Functional Recovery After Experimental Stroke in Rats. Mol Neurobiol 2014; 52:1245-1256. [DOI: 10.1007/s12035-014-8909-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 09/28/2014] [Indexed: 01/25/2023]
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Chen CC, Chang MW, Chang CP, Chan SC, Chang WY, Yang CL, Lin MT. A forced running wheel system with a microcontroller that provides high-intensity exercise training in an animal ischemic stroke model. ACTA ACUST UNITED AC 2014; 47:858-68. [PMID: 25140816 PMCID: PMC4181221 DOI: 10.1590/1414-431x20143754] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 05/12/2014] [Indexed: 12/19/2022]
Abstract
We developed a forced non-electric-shock running wheel (FNESRW) system that provides rats with high-intensity exercise training using automatic exercise training patterns that are controlled by a microcontroller. The proposed system successfully makes a breakthrough in the traditional motorized running wheel to allow rats to perform high-intensity training and to enable comparisons with the treadmill at the same exercise intensity without any electric shock. A polyvinyl chloride runway with a rough rubber surface was coated on the periphery of the wheel so as to permit automatic acceleration training, and which allowed the rats to run consistently at high speeds (30 m/min for 1 h). An animal ischemic stroke model was used to validate the proposed system. FNESRW, treadmill, control, and sham groups were studied. The FNESRW and treadmill groups underwent 3 weeks of endurance running training. After 3 weeks, the experiments of middle cerebral artery occlusion, the modified neurological severity score (mNSS), an inclined plane test, and triphenyltetrazolium chloride were performed to evaluate the effectiveness of the proposed platform. The proposed platform showed that enhancement of motor function, mNSS, and infarct volumes was significantly stronger in the FNESRW group than the control group (P<0.05) and similar to the treadmill group. The experimental data demonstrated that the proposed platform can be applied to test the benefit of exercise-preconditioning-induced neuroprotection using the animal stroke model. Additional advantages of the FNESRW system include stand-alone capability, independence of subjective human adjustment, and ease of use.
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Affiliation(s)
- C C Chen
- Department of Electrical Engineering, National Cheng-Kung University, Tainan, Taiwan
| | - M W Chang
- Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - C P Chang
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - S C Chan
- Department of Electrical Engineering, National Cheng-Kung University, Tainan, Taiwan
| | - W Y Chang
- Department of Electrical Engineering, National Cheng-Kung University, Tainan, Taiwan
| | - C L Yang
- Department of Electrical Engineering, National Cheng-Kung University, Tainan, Taiwan
| | - M T Lin
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
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The effects of poststroke aerobic exercise on neuroplasticity: a systematic review of animal and clinical studies. Transl Stroke Res 2014; 6:13-28. [PMID: 25023134 DOI: 10.1007/s12975-014-0357-7] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/02/2014] [Accepted: 06/30/2014] [Indexed: 10/25/2022]
Abstract
Aerobic exercise may be a catalyst to promote neuroplasticity and recovery following stroke; however, the optimal methods to measure neuroplasticity and the effects of training parameters have not been fully elucidated. We conducted a systematic review and synthesis of clinical trials and studies in animal models to determine (1) the extent to which aerobic exercise influences poststroke markers of neuroplasticity, (2) the optimal parameters of exercise required to induce beneficial effects, and (3) consistent outcomes in animal models that could help inform the design of future trials. Synthesized findings show that forced exercise at moderate to high intensity increases brain-derived neurotrophic factor (BDNF), insulin-like growth factor-I (IGF-I), nerve growth factor (NGF), and synaptogenesis in multiple brain regions. Dendritic branching was most responsive to moderate rather than intense training. Disparity between clinical stroke and stroke models (timing of initiation of exercise, age, gender) and clinically viable methods to measure neuroplasticity are some of the areas that should be addressed in future research.
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Adams JA, Uryash A, Bassuk J, Sackner MA, Kurlansky P. Biological basis of neuroprotection and neurotherapeutic effects of Whole Body Periodic Acceleration (pGz). Med Hypotheses 2014; 82:681-7. [PMID: 24661939 DOI: 10.1016/j.mehy.2014.02.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 02/20/2014] [Accepted: 02/26/2014] [Indexed: 02/06/2023]
Abstract
Exercise is a well known neuroprotective and neurotherapeutic strategy in animal models and humans with brain injury and cognitive dysfunction. In part, exercise induced beneficial effects relate to endothelial derived nitric oxide (eNO) production and induction of the neurotrophins; Brain Derived Neurotrophic Factor (BDNF) and Glial Derived Neurotrophic Factor (GDNF). Whole Body Periodic Acceleration (WBPA (pGz), is the motion of the supine body headward to footward in a sinusoidal fashion, at frequencies of 100-160 cycles/min, inducing pulsatile shear stress to the vascular endothelium. WBPA (pGz) increases eNO in the cardiovascular system in animal models and humans. We hypothesized that WBPA (pGz) has neuroprotective and neurotherapeutic effects due to enhancement of biological pathways that include eNOS, BDNF and GDNF. We discuss protein expression analysis of these in brain of rodents. Animal and observational human data affirm a neuroprotective and neurotherapeutic role for WBPA (pGz). These findings suggest that WBPA (pGz) in addition to its well known beneficial cardiovascular effects can be a simple non-invasive neuroprotective and neurotherapeutic strategy with far reaching health benefits.
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Affiliation(s)
- Jose A Adams
- Division of Neonatology and Department of Research, Mount Sinai Medical Center, Miami Beach, FL, United States.
| | - Arkady Uryash
- Division of Neonatology and Department of Research, Mount Sinai Medical Center, Miami Beach, FL, United States
| | - Jorge Bassuk
- Division of Neonatology and Department of Research, Mount Sinai Medical Center, Miami Beach, FL, United States
| | - Marvin A Sackner
- Clinical Professor of Medicine, University of Miami School of Medicine, Miami, FL, United States
| | - Paul Kurlansky
- Columbia University College of Physicians and Surgeons, NY, United States
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