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Chen A, Hua J, Yuan J, Feng Y, Chen F, Zhou Y, Han T, Jiang W, Chen H. Ginkgolide B promotes spontaneous recovery and enhances endogenous netrin-1 after neonatal hypoxic-ischemic brain damage. Int J Dev Neurosci 2023; 83:740-752. [PMID: 37771243 DOI: 10.1002/jdn.10301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/16/2023] [Accepted: 08/24/2023] [Indexed: 09/30/2023] Open
Abstract
OBJECTIVES Perinatal hypoxic-ischemic encephalopathy (HIE) is a condition that can lead to long-term cognitive, motor, and behavioral impairments in newborns. Although brain hypothermia therapy is currently the standard treatment for HIE, it does not provide complete neuroprotection. As a result, there is a need to explore additional therapies to enhance treatment outcomes. This study aims to investigate the potential role of Ginkgolide B (GB) in promoting neuroplasticity and facilitating spontaneous recovery after HIE. METHODS In this study, we employed a neonatal rat model of HIE to investigate the effects of GB on spontaneous recovery. GB treatment was initiated 24 h after hypoxia and administered continuously for a duration of 14 days. We evaluated several outcome measures after the treatment period, including spontaneous behavioral recovery and brain repair. Additionally, we quantified the levels of netrin-1 in both plasma and the peri-ischemic zone after the occurrence of HIE. RESULTS We found that GB treatment significantly facilitated spontaneous behavioral recovery in the HIE pups. Furthermore, cognitive function was restored, and brain tissue repair had a noticeable acceleration. We observed increased cell proliferation in the subventricular, stratum, and subgranular zones. Of particular interest, we observed elevated levels of netrin-1 in both plasma and the ischemic penumbra following GB treatment. CONCLUSION Our findings suggest that GB promotes neuroplasticity and enhances spontaneous recovery in newborns affected by HIE. The observed upregulation of netrin-1 may be crucial in mediating these effects. These results highlight the promising potential of GB as a post-HIE therapy, particularly in enhancing spontaneous recovery and improving long-term outcomes.
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Affiliation(s)
- Aiming Chen
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Jun Hua
- Department of Neurology & Psychology, Shenzhen Traditional Chinese Medicine Hospital, Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Jun Yuan
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Yajuan Feng
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Fengzhan Chen
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Yongqin Zhou
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Ting Han
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Weiwei Jiang
- Department of Pediatrics, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
| | - Huiping Chen
- Department of Vasculocardiology, The Affiliated Taizhou Second People's Hospital of Yangzhou University, Taizhou, China
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Li K, Lu M, Cui M, Wang X, Zheng Y. The Notch pathway regulates autophagy after hypoxic-ischemic injury and affects synaptic plasticity. Brain Struct Funct 2023; 228:985-996. [PMID: 37083721 DOI: 10.1007/s00429-023-02639-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/29/2023] [Indexed: 04/22/2023]
Abstract
Following neonatal hypoxic-ischemia (HI) injury, it is crucial factor to reconstruct neural circuit and maintain neural network homeostasis for neurological recovery. A dynamic balance between the synthesis and degradation of synaptic protein is required for maintaining synaptic plasticity. Protein degradation is facilitated by autophagy. This study aimed to investigate the regulation of synaptic structural plasticity by the Notch pathway, by assessing changes in Notch pathway activation and their effects on synaptic proteins and autophagy after HI injury. The study involved 48 male newborn Yorkshire piglets, each weighing 1.0-1.5 kg and 3 days old. They were randomly assigned to two groups: the HI group and the Notch pathway inhibitor + HI group (n = 24 per group). Each group was further divided into six subgroups according to HI duration (n = 4 per group): a control subgroup, and 0-6, 6-12, 12-24, 24-48, and 48-72 h subgroups. The expression of Notch pathway-related proteins, including Notch1, Hes1, and Notch intracellular domains, increased following HI injury. The expression of autophagy proteins increased at 0-6 h and 6-12 h post-HI. The expression of synaptic proteins, such as postsynaptic density protein 95 (PSD95) and synaptophysin, increased 6-12 h and 12-24 h after HI, respectively. Notably, the increased expression of these proteins was reversed by a Notch pathway inhibitor. Transmission electron microscopy revealed the presence of autophagosome structures in synapses. These findings shed light on the underlying mechanisms of neurological recovery after HI injury and may provide insights into potential therapeutic targets for promoting neural circuit reconstruction and maintaining neural network homeostasis.
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Affiliation(s)
- Kexin Li
- Department of Radiology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, People's Republic of China
| | - Meng Lu
- Department of Radiology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, People's Republic of China
| | - Mengxu Cui
- Department of Radiology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, People's Republic of China
| | - Xiaoming Wang
- Department of Radiology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, People's Republic of China.
| | - Yang Zheng
- Department of Radiology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, People's Republic of China.
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Pan S, Lin S, Lin J, Chen S, Lin Z. Multiple brain abscesses in an extremely preterm infant and a 12-year follow up: a case report. Ital J Pediatr 2022; 48:99. [PMID: 35710574 PMCID: PMC9205019 DOI: 10.1186/s13052-022-01294-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 06/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Brain abscesses are uncommon but life-threatening in extremely preterm (EP, Gestational Age < 28 weeks) infants. The information of long-time follow-up is rare, but very few cases presented almost intact neural function after injury. CASE PRESENTATION We report the clinical course and the outcome of a 27-week preterm infant with multiple brain abscesses. The brain abscesses were detected by cranial magnetic resonance imaging (MRI) and were treated with surgical aspiration twice and a 7-week course of intravenous antibiotics. The patient had two episodes of seizure like activities at 8 and 11 years old respectively, whereas she had normal results of electroencephalogram (EEG). MRI showed encephalomalacia and periventricular leukomalacia. Otherwise, she had no obvious neurological deficits based on multiple physical examination and her intellectual quotient (IQ) was in normal range in the long-time follow-up. CONCLUSIONS Early diagnosis of brain abscesses and appropriate therapy can improve the prognosis. Furthermore, this case report provides an example of the possible neuroplasticity of brain in EP infants.
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Affiliation(s)
- Shulin Pan
- Department of Neonatology, The Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Su Lin
- Department of Neonatology, The Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Jing Lin
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, NY, New York, USA
| | - Shangqin Chen
- Department of Neonatology, The Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Zhenlang Lin
- Department of Neonatology, The Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China.
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Environmental Enrichment Enhances Ca v 2.1 Channel-Mediated Presynaptic Plasticity in Hypoxic-Ischemic Encephalopathy. Int J Mol Sci 2021; 22:ijms22073414. [PMID: 33810296 PMCID: PMC8037860 DOI: 10.3390/ijms22073414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/23/2021] [Indexed: 12/16/2022] Open
Abstract
Hypoxic–ischemic encephalopathy (HIE) is a devastating neonatal brain condition caused by lack of oxygen and limited blood flow. Environmental enrichment (EE) is a classic paradigm with a complex stimulation of physical, cognitive, and social components. EE can exert neuroplasticity and neuroprotective effects in immature brains. However, the exact mechanism of EE on the chronic condition of HIE remains unclear. HIE was induced by a permanent ligation of the right carotid artery, followed by an 8% O2 hypoxic condition for 1 h. At 6 weeks of age, HIE mice were randomly assigned to either standard cages or EE cages. In the behavioral assessments, EE mice showed significantly improved motor performances in rotarod tests, ladder walking tests, and hanging wire tests, compared with HIE control mice. EE mice also significantly enhanced cognitive performances in Y-maze tests. Particularly, EE mice showed a significant increase in Cav 2.1 (P/Q type) and presynaptic proteins by molecular assessments, and a significant increase of Cav 2.1 in histological assessments of the cerebral cortex and hippocampus. These results indicate that EE can upregulate the expression of the Cav 2.1 channel and presynaptic proteins related to the synaptic vesicle cycle and neurotransmitter release, which may be responsible for motor and cognitive improvements in HIE.
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Spontaneous Neuronal Plasticity in the Contralateral Motor Cortex and Corticospinal Tract after Focal Cortical Infarction in Hypertensive Rats. J Stroke Cerebrovasc Dis 2020; 29:105235. [PMID: 32992200 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 07/02/2020] [Accepted: 08/02/2020] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES In this study, we investigated the spontaneous neural plasticity on the contralateral side in hypertensive rats, including the expression of nerve growth factors (synaptophysin [SYN] and growth-associated protein 43 [GAP-43]), and the association between nerve fiber sprouting and redistribution, and the recovery of motor functions following sensorimotor cortical infarction. METHODS Initially, Sprague-Dawley rats were induced with renal hypertension by the bilateral renal arteries clips method. Further, they were induced with cerebral ischemia by the middle cerebral artery electrocoagulation method; 70 male rats completed the study. We compared the changes in the corticospinal tract (CST) and the expressions of SYN and GAP-43 on the contralateral side in rats with cerebral infarction using immunohistochemical staining, western blot, and biotinylated dextran amine (BDA) tracing analyses. The recovery of motor function in rats after cortical infarction was evaluated by the foot-fault and beam-walk tests. RESULTS The motor behavior tests revealed that the motor function of rats could recover to various degrees after focal cortical infarction. Compared with the sham-operated group, the SYN and GAP-43 levels increased in the motor cortex of the opposite hemisphere within 28 days after middle cerebral artery occlusion (MCAO). The increase in SYN and GAP-43 expressions presented differently in layers Ⅱ, Ⅲ, and Ⅴ. The amount of BDA-positive fibers also increased significantly in the denervated cervical spinal gray matter on day 56 post-MCAO. CONCLUSIONS The increases in SYN and GAP-43 on the contralateral side of the motor cortex could promote CST sprouting and rewiring in the spinal cord gray matter and also spontaneous motor function recovery after cortical infarction.
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Lu YC, Wu JJ, Ma H, Hua XY, Xu JG. Functional Organization of Brain Network in Peripheral Neural Anastomosis Rats after Electroacupuncture: An ICA and Connectome Analysis. Neuroscience 2020; 442:216-227. [PMID: 32629154 DOI: 10.1016/j.neuroscience.2020.06.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 06/14/2020] [Accepted: 06/15/2020] [Indexed: 11/19/2022]
Abstract
Acupuncture is a mild therapy in rehabilitation practice of peripheral nerve injury. Previous studies confirmed the deep participation of brain plasticity in the process of functional restoration. The therapeutic effect of acupuncture is also believed to be closely associated with brain plasticity, especially in the hypothalamus and limbic system. But the fuzzy neural mechanism somehow limits the application or improvement of this therapy. There is little information about the effect of acupuncture on topological properties of brain networks. Instead of functional segregation approach, we utilized graph theory method to analyze the large-scale and distributed properties of information processing. We first established rat model of sciatic nerve injury and performed rehabilitation therapy of electroacupuncture for 120 days. Meanwhile, we used independent component analysis to extract seven sub-networks from the whole brain. Then measurements of graph theory were calculated in each sub-network as well as the whole brain network. We found no significant difference of any measurement in whole brain network among intervention group, model group and normal group. But the assortativity, hierarchy, small-world properties of sub-network displayed significant differences among three groups. It induces changes of neural plasticity in several sub-networks instead of whole brain network. We attributed the changes to the enhancement of the short-term compensatory adaptation and the reduction of the long-term overacting regional information transmission. The present study may shed light on the vague distinction of large-scale property of brain networks after electroacupuncture, which leads to a better understanding of this ancient traditional Chinese therapy.
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Affiliation(s)
- Ye-Chen Lu
- School of Rehabilitation Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Center of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai China
| | - Jia-Jia Wu
- Center of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai China
| | - Hao Ma
- Department of Trauma and Orthopedics, First People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai China
| | - Xu-Yun Hua
- Department of Trauma and Orthopedics, Yueyang Hospital of Intergrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian-Guang Xu
- School of Rehabilitation Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Center of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai China.
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Azevedo PN, Zanirati G, Venturin GT, Schu GG, Durán–Carabali LE, Odorcyk FK, Soares AV, Laguna GDO, Netto CA, Zimmer ER, da Costa JC, Greggio S. Long-term changes in metabolic brain network drive memory impairments in rats following neonatal hypoxia-ischemia. Neurobiol Learn Mem 2020; 171:107207. [DOI: 10.1016/j.nlm.2020.107207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/13/2020] [Accepted: 03/02/2020] [Indexed: 10/24/2022]
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De León Reyes NS, Mederos S, Varela I, Weiss LA, Perea G, Galazo MJ, Nieto M. Transient callosal projections of L4 neurons are eliminated for the acquisition of local connectivity. Nat Commun 2019; 10:4549. [PMID: 31591398 PMCID: PMC6779895 DOI: 10.1038/s41467-019-12495-w] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 09/15/2019] [Indexed: 12/11/2022] Open
Abstract
Interhemispheric axons of the corpus callosum (CC) facilitate the higher order functions of the cerebral cortex. According to current views, callosal and non-callosal fates are determined early after a neuron's birth, and certain populations, such as cortical layer (L) 4 excitatory neurons of the primary somatosensory (S1) barrel, project only ipsilaterally. Using a novel axonal-retrotracing strategy and GFP-targeted visualization of Rorb+ neurons, we instead demonstrate that L4 neurons develop transient interhemispheric axons. Locally restricted L4 connectivity emerges when exuberant contralateral axons are refined in an area- and layer-specific manner during postnatal development. Surgical and genetic interventions of sensory circuits demonstrate that refinement rates depend on distinct inputs from sensory-specific thalamic nuclei. Reductions in input-dependent refinement result in mature functional interhemispheric hyperconnectivity, demonstrating the plasticity and bona fide callosal potential of L4 neurons. Thus, L4 neurons discard alternative interhemispheric circuits as instructed by thalamic input. This may ensure optimal wiring.
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Affiliation(s)
- N S De León Reyes
- Department of Cellular and Molecular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Campus de Cantoblanco, Darwin 3, 28049, Madrid, Spain
| | - S Mederos
- Instituto Cajal, CSIC. Av. Doctor Arce, 37, 28002, Madrid, Spain
| | - I Varela
- Department of Cellular and Molecular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Campus de Cantoblanco, Darwin 3, 28049, Madrid, Spain
| | - L A Weiss
- Department of Cellular and Molecular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Campus de Cantoblanco, Darwin 3, 28049, Madrid, Spain
| | - G Perea
- Instituto Cajal, CSIC. Av. Doctor Arce, 37, 28002, Madrid, Spain
| | - M J Galazo
- Department of Cell and Molecular Biology and Tulane Brain Institute, Tulane University, 6400 Freret Street, Percival Stern Hall suite 2000, New Orleans, LA, 70118, USA
| | - M Nieto
- Department of Cellular and Molecular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Campus de Cantoblanco, Darwin 3, 28049, Madrid, Spain.
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Jung WB, Shim HJ, Kim SG. Mouse BOLD fMRI at ultrahigh field detects somatosensory networks including thalamic nuclei. Neuroimage 2019; 195:203-214. [DOI: 10.1016/j.neuroimage.2019.03.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/14/2019] [Accepted: 03/27/2019] [Indexed: 01/16/2023] Open
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Chae SY, Jang JH, Im GH, Jeong JH, Jung WB, Ko S, Jie H, Kim JH, Chang YS, Chung S, Kim KS, Lee JH. Physical exercise enhances adult cortical plasticity in a neonatal rat model of hypoxic-ischemic injury: Evidence from BOLD-fMRI and electrophysiological recordings. Neuroimage 2018; 188:335-346. [PMID: 30553043 DOI: 10.1016/j.neuroimage.2018.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/29/2018] [Accepted: 12/11/2018] [Indexed: 01/15/2023] Open
Abstract
Neuroplasticity is considered essential for recovery from brain injury in developing brains. Recent studies indicate that it is especially effective during early postnatal development and during the critical period. The current study used functional magnetic resonance imaging (fMRI) and local field potential (LFP) electrophysiological recordings in rats that experienced neonatal hypoxic-ischemic (HI) injury during the critical period to demonstrate that physical exercise (PE) can improve cortical plasticity even when performed during adulthood, after the critical period. We investigated to what extent the blood oxygen level-dependent (BOLD)-fMRI responses were increased in the contralesional spared cortex, and how these increases were related to the LFP electrophysiological measurements and the functional outcome. The balance of excitation and inhibition was assessed by measuring excitatory and inhibitory postsynaptic currents in stellate cells in the primary somatosensory (S1) cortex, which was compared with the BOLD-fMRI responses in the contralesional S1 cortex. The ratio of inhibitory postsynaptic current (IPSC) to excitatory postsynaptic current (EPSC) at the thalamocortical (TC) input to the spared S1 cortex was significantly increased by PE, which is consistent with the increased BOLD-fMRI responses and improved functional outcome. Our data clearly demonstrate in an experimental rat model of HI injury during the critical period that PE in adulthood enhances neuroplasticity and suggest that enhanced feed-forward inhibition at the TC input to the S1 cortex might underlie the PE-induced amelioration of the somatosensory deficits caused by the HI injury. In summary, the results of the current study indicate that PE, even if performed beyond the critical period or during adulthood, can be an effective therapy to treat neonatal brain injuries, providing a potential mechanism for the development of a potent rehabilitation strategy to alleviate HI-induced neurological impairments.
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Affiliation(s)
- Sun Young Chae
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, South Korea; Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, South Korea; Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, South Korea
| | - Jun Ho Jang
- BnH Research Co., Ltd., Goyang-si, Gyeonggi-do, 10594, South Korea
| | - Geun Ho Im
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, South Korea; Animal Research and Molecular Imaging, Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, 06351, South Korea
| | - Ji-Hyun Jeong
- Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Won-Beom Jung
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, South Korea; Department of Global Biomedical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Sukjin Ko
- Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Hyesoo Jie
- Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Ji Hye Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, South Korea
| | - Yun Sil Chang
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, South Korea; Department of Pediatrics Division of Neonatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, South Korea
| | - Seungsoo Chung
- Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, 03722, South Korea.
| | - Ki-Soo Kim
- Department of Pediatrics Division of Neonatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05535, South Korea.
| | - Jung Hee Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, South Korea; Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, South Korea; Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, South Korea; Animal Research and Molecular Imaging, Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, 06351, South Korea; Department of Global Biomedical Engineering, Sungkyunkwan University, Suwon, Republic of Korea.
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11
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Sakai T, Sasaki M, Kataoka-Sasaki Y, Oka S, Nakazaki M, Fukumura S, Kobayashi M, Tsutsumi H, Kocsis JD, Honmou O. Functional recovery after the systemic administration of mesenchymal stem cells in a rat model of neonatal hypoxia-ischemia. J Neurosurg Pediatr 2018; 22:513-522. [PMID: 30074448 DOI: 10.3171/2018.5.peds1845] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/10/2018] [Indexed: 01/26/2023]
Abstract
The authors intravenously infused mesenchymal stem cells (MSCs) into a rat model of neonatal hypoxia-ischemia and found improvements in functional outcome, increased brain volume, and enhanced synaptogenesis. The results of this animal study suggest that the intravenous administration of MSCs should be further explored as a potential treatment for patients suffering from cerebral palsy after hypoxic-ischemic encephalopathy.
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Affiliation(s)
- Takuro Sakai
- 1Department of Pediatrics
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
| | - Masanori Sasaki
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
- 4Department of Neurology, Yale University School of Medicine, New Haven; and
- 5Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut
| | - Yuko Kataoka-Sasaki
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
| | - Shinichi Oka
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
| | - Masahito Nakazaki
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
| | - Shinobu Fukumura
- 1Department of Pediatrics
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
| | - Masaki Kobayashi
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
- 3Department of Perinatal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | | | - Jeffery D Kocsis
- 4Department of Neurology, Yale University School of Medicine, New Haven; and
- 5Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut
| | - Osamu Honmou
- 2Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, and
- 4Department of Neurology, Yale University School of Medicine, New Haven; and
- 5Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut
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12
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Ji M, Li S, Dong Q, Hu W. Impact of Early High-protein Diet on Neurofunctional Recovery in Rats with Ischemic Stroke. Med Sci Monit 2018; 24:2235-2243. [PMID: 29654641 PMCID: PMC5912094 DOI: 10.12659/msm.906533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Ischemic stroke, featuring high incidence, morbidity, and mortality, is one of the three major diseases troubling human beings. The purpose of the study was to examine the impact of early high-protein diet on neurofunctional recovery in rats with ischemic stroke as well as their cerebral infarct areas and molecular expressions of oxidative stress. MATERIAL AND METHODS The middle cerebral artery occlusion model (MCAO) was established, and 48 adult, male Sprague Dawley (SD) rats of clean grade aged seven to eight months (250-280 g body weight) were randomized into four groups: the MCAO group with high-protein diet (MH), the MCAO group with standard-protein diet (MS), the sham group with high-protein diet (SH), and the sham group with standard-protein diet (SS). High-protein diet intervention started on the first day of the surgery, and the rats' body weights and their neurological deficit scores were measured on each postoperative day while the scores of motors coordination and balance ability were recorded every other day. In addition, their cerebral infant areas and the molecular expressions of oxidative stress injuries were detected as well. RESULTS Compared to the MS group, the rats in the MH group gained faster weight growth (p<0.05), presented significantly lower neurological impairment scores (p<0.05), remarkably improved motor coordination and balance ability (p<0.05) as well as showed smaller cerebral infarct areas (p<0.05), increased expression of SOD (superoxide dismutase), and reduced expressions of MDA (malondialdehyde) and iNOS (inducible nitric oxide synthase). However, there was no significant difference between the SS group and the SH group (p>0.05). CONCLUSIONS Early high-protein diet facilitates the recovery of body weights and neurological functions as well the reduction of the cerebral infarct areas of rats, thus alleviating ischemic stroke-caused oxidative stress injuries.
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Affiliation(s)
- Meng Ji
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China (mainland)
| | - Shujuan Li
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China (mainland)
| | - Qian Dong
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China (mainland)
| | - Wenli Hu
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China (mainland)
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