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Hao P, Yang Z, So KF, Li X. A core scientific problem in the treatment of central nervous system diseases: newborn neurons. Neural Regen Res 2024; 19:2588-2601. [PMID: 38595278 PMCID: PMC11168522 DOI: 10.4103/nrr.nrr-d-23-01775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/06/2024] [Accepted: 02/22/2024] [Indexed: 04/11/2024] Open
Abstract
It has long been asserted that failure to recover from central nervous system diseases is due to the system's intricate structure and the regenerative incapacity of adult neurons. Yet over recent decades, numerous studies have established that endogenous neurogenesis occurs in the adult central nervous system, including humans'. This has challenged the long-held scientific consensus that the number of adult neurons remains constant, and that new central nervous system neurons cannot be created or renewed. Herein, we present a comprehensive overview of the alterations and regulatory mechanisms of endogenous neurogenesis following central nervous system injury, and describe novel treatment strategies that target endogenous neurogenesis and newborn neurons in the treatment of central nervous system injury. Central nervous system injury frequently results in alterations of endogenous neurogenesis, encompassing the activation, proliferation, ectopic migration, differentiation, and functional integration of endogenous neural stem cells. Because of the unfavorable local microenvironment, most activated neural stem cells differentiate into glial cells rather than neurons. Consequently, the injury-induced endogenous neurogenesis response is inadequate for repairing impaired neural function. Scientists have attempted to enhance endogenous neurogenesis using various strategies, including using neurotrophic factors, bioactive materials, and cell reprogramming techniques. Used alone or in combination, these therapeutic strategies can promote targeted migration of neural stem cells to an injured area, ensure their survival and differentiation into mature functional neurons, and facilitate their integration into the neural circuit. Thus can integration replenish lost neurons after central nervous system injury, by improving the local microenvironment. By regulating each phase of endogenous neurogenesis, endogenous neural stem cells can be harnessed to promote effective regeneration of newborn neurons. This offers a novel approach for treating central nervous system injury.
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Affiliation(s)
- Peng Hao
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Zhaoyang Yang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Kwok-Fai So
- Guangdong-HongKong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong Province, China
- Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong Special Administration Region, China
- Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou, Guangdong Province, China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xiaoguang Li
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Department of Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
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Martínez-Torres NI, Cárdenas-Bedoya J, Torres-Mendoza BM. Acute Combined Cerebrolysin and Nicotinamide Administration Promote Cognitive Recovery Through Neuronal Changes in the Hippocampus of Rats with Permanent Middle Cerebral Artery Occlusion. Neuroscience 2024; 549:76-83. [PMID: 38734304 DOI: 10.1016/j.neuroscience.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/02/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Stroke is one of the leading causes of disability worldwide, where the Hippocampus (HPC) is affected. HPC organizes memory, which is a cognitive domain compromised after a stroke, where cerebrolysin (CBL) and Nicotinamide (NAM) have been recognized as potentially therapeutic. In this study, we aimed to evaluate the efficacy of a combined administration of CBL and NAM in a rat stroke model. Male Sprague-Dawley rats (n = 36) were divided into four groups: saline (pMCAO - Saline), CBL (pMCAO + CBL), NAM (pMCAO + NAM), and experimental (pMCAO + CBL-NAM) (n = 9 per group). A permanent middle cerebral artery occlusion (pMCAO) was induced through electrocauterization of the middle cerebral artery, followed by the administration of CBL (2.5 ml/kg), NAM (500 mg/kg) or combined immediately after skin suture, as well as at 24, 48, and 72 h post-surgery. The rats were evaluated in the novel object recognition test; hippocampal infarct area measurement; reconstruction of neurons from CA1 for Sholl analysis; and, measurement of brain-derived neurotrophic factor (BDNF) levels near the infarct zone. Our findings revealed that the administration of CBL or NAM induced infarct reduction, improved cognition, and increased BDNF levels. Moreover, a combination of CBL and NAM increased dendritic intersection in CA1 pyramidal neurons. Thus, the combined administration of CBL and NAM can promote cognitive recovery after a stroke, with infarct reduction, cytoarchitectural changes in HPC CA1 neurons, and BDNF increase. Our findings suggest that this combination therapy could be a promising intervention strategy for stroke.
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Affiliation(s)
- Nestor I Martínez-Torres
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico; Centro Universitario del Norte, Departamento de Bienestar y Desarrollo Sustentable, Universidad de Guadalajara, Colotlán, Jalisco, Mexico
| | - Jhonathan Cárdenas-Bedoya
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico; Centro Universitario de Ciencias de la Salud, Departamento de Disciplinas Filósofico, Metodológicas e Instrumentales, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Blanca Miriam Torres-Mendoza
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico; Centro Universitario de Ciencias de la Salud, Departamento de Disciplinas Filósofico, Metodológicas e Instrumentales, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico.
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3
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Prescott K, Cothren TO, Holsten JT, Evonko CJ, Doyle EC, Bullock FE, Marron PT, Staton JG, Hatvany LS, Flack JW, Beuschel SL, MacQueen DA, Peterson TC. Increased sensitivity in detection of deficits following two commonly used animal models of stroke. Behav Brain Res 2024; 467:114991. [PMID: 38614209 DOI: 10.1016/j.bbr.2024.114991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/18/2024] [Accepted: 04/04/2024] [Indexed: 04/15/2024]
Abstract
Stroke is a leading cause of death and disability in the United States. Most strokes are ischemic, resulting in both cognitive and motor impairments. Animal models of ischemic stroke such as the distal middle cerebral artery occlusion (dMCAO) and photothrombotic stroke (PTS) procedures have become invaluable tools, with their own advantages and disadvantages. The dMCAO model is clinically relevant as it occludes the artery most affected in humans, but yields variability in the infarct location as well as the behavioral and cognitive phenotypes disrupted. The PTS model has the advantage of allowing for targeted location of infarct, but is less clinically relevant. The present study evaluates phenotype disruption over time in mice subjected to either dMCAO, PTS, or a sham surgery. Post-surgery, animals were tested over 28 days on standard motor tasks (grid walk, cylinder, tapered beam, and rotating beam), as well as a novel odor-based operant task; the 5:1 Odor Discrimination Task (ODT). Results demonstrate a significantly greater disturbance of motor control with PTS as compared with Sham and dMCAO. Disruption of the PTS group was detected up to 28 days post-stroke on the grid walk, and up to 7 days on the rotating and tapered beam tasks. PTS also led to significant short-term disruption of ODT performance (1-day post-surgery), exclusively in males, which appeared to be driven by motoric disruption of the lick response. Together, this data provides critical insights into the selection and optimization of animal models for ischemic stroke research. Notably, the PTS procedure was best suited for producing disruptions of motor behavior that can be detected with common behavioral assays and are relatively enduring, as is observed in human stroke.
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Affiliation(s)
- Kimberly Prescott
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Taitum O Cothren
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - John T Holsten
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Christopher J Evonko
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Elan C Doyle
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Faith E Bullock
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Paul T Marron
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Julia G Staton
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Laura S Hatvany
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Justin W Flack
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Stacie L Beuschel
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - David A MacQueen
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
| | - Todd C Peterson
- Department of Psychology, University of North Carolina Wilmington, 601 College Road, Wilmington, NC 28428, United States.
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Takamatsu Y, Inoue T, Nishio T, Soma K, Kondo Y, Mishima T, Takamura H, Okamura M, Maejima H. Potential effect of physical exercise on the downregulation of BDNF mRNA expression in rat hippocampus following intracerebral hemorrhage. Neurosci Lett 2024; 824:137670. [PMID: 38342427 DOI: 10.1016/j.neulet.2024.137670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/24/2024] [Accepted: 02/05/2024] [Indexed: 02/13/2024]
Abstract
OBJECTIVES Physical exercise is known to induce expression of the neuroprotective brain derived neurotrophic factor (BDNF) in the hippocampus. This study examined the effects of physical exercise on hippocampal BDNF expression and the potential benefits for preventing remote secondary hippocampal damage and neurological impairment following intracerebral hemorrhage (ICH). MATERIALS AND METHODS Wistar rats were randomly assigned to sham-operated, ICH, and ICH followed by exercise (ICH/Ex) groups. The two ICH groups were injected with type IV collagenase into the left basal ganglia, while sham animals were injected with equal-volume saline. The ICH/Ex group rats ran on a treadmill at 11 m/min for 30 min/day from day 3 to 16 post-ICH. All animals were examined for neurological function on day 2 pretreatment and from day 3 to 15 posttreatment, for spontaneous motor activity in the open field on day 15, and for cognitive ability using the object location test on day 16. Animals were then euthanized and bilateral hippocampi collected for gene expression analyses. RESULTS Experimental ICH induced neurological deficits that were not reversed by exercise. In contrast, ICH did not alter spontaneous activity or object location ability. Expression of BDNF mRNA of the ICH group was significantly downregulated in the ipsilateral hippocampus compared to the SHAM group, but this downregulation was not shown in the ICH/Ex group. The ICH/Ex group showed the downregulation of caspase-3 mRNA expression in the contralateral hippocampus compared to the SHAM group, while neither ICH nor exercise influenced toll-like receptor 4 mRNA expression. CONCLUSIONS ICH induced the secondary BDNF downregulation in the hippocampus remote from the lesion, whereas physical exercise might partially mitigate the downregulation.
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Affiliation(s)
- Yasuyuki Takamatsu
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan; Department of Physical Therapy, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan.
| | - Takahiro Inoue
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan; Department of System Pathology for Neurological Disorders, Brain Research Institute, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata 951-8585, Japan
| | - Taichi Nishio
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Kiho Soma
- Department of Health Sciences, School of Medicine, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Yuki Kondo
- Department of Health Sciences, School of Medicine, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Taiga Mishima
- Department of Health Sciences, School of Medicine, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Hana Takamura
- Department of Health Sciences, School of Medicine, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Misato Okamura
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Hiroshi Maejima
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
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Kim TW, Park SS, Kim SH, Kim MK, Shin MS, Kim SH. Exercise before pregnancy exerts protective effect on prenatal stress-induced impairment of memory, neurogenesis, and mitochondrial function in offspring. J Exerc Rehabil 2024; 20:2-10. [PMID: 38433854 PMCID: PMC10902695 DOI: 10.12965/jer.2448068.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 03/05/2024] Open
Abstract
Stress during pregnancy has a negative effect on the fetus. However, maternal exercise has a positive effect on the cognitive function of the fetus and alleviates the negative effects of stress. This study aimed to demonstrate whether exercise before pregnancy has a protective effect on prenatal stress-induced impairment of memory, neurogenesis and mitochondrial function in mice offspring. In this experiment, immunohistochemistry, Western blot, measurement of mitochondria oxygen respiration, and behavior tests were performed. Spatial memory and short-term memory of the offspring from the prenatal stress with exercise were increased compared to the offspring from the prenatal stress. The numbers of doublecortin-positive and 5-bromo-2'-deoxyuridine-positive cells in the hippocampal dentate gyrus of the offspring from the prenatal stress with exercise were higher compared to the offspring from the prenatal stress. The expressions of brain-derived neurotrophic factor, postsynaptic density 95 kDa, and synaptophysin in the hippocampus of the offspring from the prenatal stress with exercise were enhanced compared to the offspring from the prenatal stress. Oxygen consumption of the offspring from the prenatal stress with exercise were higher compared to the offspring from the prenatal stress. Exercise before pregnancy alleviated prenatal stress-induced impairment of memory, neurogenesis, and mitochondrial function. Therefore, exercise before pregnancy may have a protective effect against prenatal stress of the offspring.
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Affiliation(s)
- Tae-Woon Kim
- Department of Human Health Care, Gyeongsang National University, Jinju,
Korea
| | - Sang-Seo Park
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul,
Korea
| | - Sang-Hoon Kim
- Department of Sport and Health Sciences, College of Art and Culture, Sangmyung University, Seoul,
Korea
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ,
USA
| | - Myung-Ki Kim
- College of Culture and Sports, Division of Global Sport Studies, Korea University, Sejong,
Korea
| | - Mal-Soon Shin
- College of Culture and Sports, Division of Global Sport Studies, Korea University, Sejong,
Korea
| | - Seong-Hyun Kim
- Department of Kinesiology, Michigan State University, East Lansing, MI,
USA
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Toltin AC, Belkadi A, Gamba LM, Hossain MM. The Preventive Effects of Salubrinal against Pyrethroid-Induced Disruption of Adult Hippocampal Neurogenesis in Mice. Int J Mol Sci 2023; 24:15614. [PMID: 37958604 PMCID: PMC10648946 DOI: 10.3390/ijms242115614] [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: 09/16/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Environmental factors, including pesticide exposure, have been identified as substantial contributors to neurodegeneration and cognitive impairments. Previously, we demonstrated that repeated exposure to deltamethrin induces endoplasmic reticulum (ER) stress, reduces hippocampal neurogenesis, and impairs cognition in adult mice. Here, we investigated the potential relationship between ER stress and hippocampal neurogenesis following exposure to deltamethrin, utilizing both pharmacological and genetic approaches. To investigate whether ER stress is associated with inhibition of neurogenesis, mice were given two intraperitoneal injections of eIf2α inhibitor salubrinal (1 mg/kg) at 24 h and 30 min prior to the oral administration of deltamethrin (3 mg/kg). Salubrinal prevented hippocampal ER stress, as indicated by decreased levels of C/EBP-homologous protein (CHOP) and transcription factor 4 (ATF4) and attenuated deltamethrin-induced reductions in BrdU-, Ki-67-, and DCX-positive cells in the dentate gyrus (DG) of the hippocampus. To further explore the relationship between ER stress and adult neurogenesis, we used caspase-12 knockout (KO) mice. The caspase-12 KO mice exhibited significant protection against deltamethrin-induced reduction of BrdU-, Ki-67-, and DCX-positive cells in the hippocampus. In addition, deltamethrin exposure led to a notable upregulation of CHOP and caspase-12 expression in a significant portion of BrdU- and Ki-67-positive cells in WT mice. Conversely, both salubrinal-treated mice and caspase-12 KO mice exhibited a considerably lower number of CHOP-positive cells in the hippocampus. Together, these findings suggest that exposure to the insecticide deltamethrin triggers ER stress-mediated suppression of adult hippocampal neurogenesis, which may subsequently contribute to learning and memory deficits in mice.
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Affiliation(s)
| | | | | | - Muhammad M. Hossain
- Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL 33199, USA
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Dong B, Qi Y, Sundas H, Yang R, Zhou J, Li Z. Soy protein increases cognitive level in mice by modifying hippocampal nerve growth, oxidative stress, and intestinal microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4085-4094. [PMID: 36514948 DOI: 10.1002/jsfa.12388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 12/07/2022] [Accepted: 12/14/2022] [Indexed: 05/03/2023]
Abstract
BACKGROUND Three kinds of diet containing chicken protein isolate (CPI), bovine milk protein isolate (BMPI), and soy protein isolate (SPI), respectively, were designed to investigate the influences of proteins on cognitive levels and related mechanisms in mice. RESULTS A Morris water maze (MWM) test showed that the SPI group had a higher cognitive level than the BMPI group. Immunohistochemical staining and chemical analysis of the hippocampus showed that the SPI group had higher synaptophysin expression, doublecortin-positive cell proportion, superoxide dismutase activity, and lower malondialdehyde content compared with the BMPI group. The same parameters in the CPI group were between those of the BMPI and SPI groups. Microbiome sequencing indicated that the three groups differed significantly at the phylum, genus, and species levels, with higher microbial alpha diversity in the CPI and SPI groups. The association of intestinal microbiota with cognitive improvement was also assessed. The present study suggests that soy protein may increase cognitive function by the gut-brain axis. CONCLUSION In contrast with CPI and BMPI, SPI had a better effect on improving the cognitive level in mice, which was achieved through the regulation of hippocampal neural growth, oxidative stress, and intestinal microbiota. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Beijia Dong
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yuanjin Qi
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Hina Sundas
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Ruiqi Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Jie Zhou
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Zhicheng Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
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Liu Y, Li YP, Xiao LM, Chen LK, Zheng SY, Zeng EM, Xu CH. Extracellular Vesicles Derived from Bone Mesenchymal Stem Cells Carrying circ_0000075 Relieves Cerebral Ischemic Injury by Competitively Inhibiting miR-218-5p and Up-regulating E3 Ubiquitin Ligase SMURF2. Mol Neurobiol 2023; 60:2801-2818. [PMID: 36732429 DOI: 10.1007/s12035-022-03192-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/23/2022] [Indexed: 02/04/2023]
Abstract
Extracellular vesicle (EV)-encapsulated circRNAs have the potential role in affecting brain disorders. However, the role of circ_0000075 in cerebral ischemic injury remains unclear. Here, we tried to investigate the mechanism of bone marrow mesenchymal stem cell (BMSC)-derived EVs carrying circ_0000075 in the control of cerebral ischemic injury. Initially, a mouse model with cerebral ischemic injury was induced by middle cerebral artery occlusion (MCAO), followed by the determination of circ_0000075 expression. Then, neurons were isolated and subjected to oxygen-glucose deprivation/reperfusion. BMSCs were isolated for extraction of EVs. The correlation among circ_0000075, microRNA (miR)-218-5p, and Smad ubiquitination regulatory factor 2 (SMURF2) was detected with their roles in cerebral ischemic injury analyzed in vivo and in vitro. circ_0000075 was down-regulated in MCAO mice and engineered RVG-EVs were internalized by neurons to up-regulate circ_0000075 expression. Treatment of RVG-circ_0000075-EVs reduced brain tissue damage, increased neuronal count, and significantly curtailed apoptosis rate, suppressing cerebral ischemic injury in vitro and in vivo. miR-218-5p was targeted by circ_0000075 in neurons, which promoted SMURF2 expression. A negative correlation between SMURF2 and transcriptional regulator Yin Yang 1 (YY1) was identified. In vitro experiments further proved that circ_ 00,000 75 could down-regulate the expression of YY1 through SMURF2, and finally relieving cerebral ischemic injury. Collectively, engineered EVs delivered circ_0000075 into brain tissues and increased circ_0000075 expression, which down-regulated miR-218-5p and up-regulated SMURF2, thus alleviating cerebral ischemic injury.
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Affiliation(s)
- Yue Liu
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China
| | - You-Ping Li
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China
| | - Li-Min Xiao
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China
| | - Li-Ke Chen
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China
| | - Su-Yue Zheng
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China
| | - Er-Ming Zeng
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China
| | - Chun-Hua Xu
- Department of Neurosurgery, Jiangxi Province, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, People's Republic of China.
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Xing Y, Zhang A, Li C, Han J, Wang J, Luo L, Chang X, Tian Z, Bai Y. Corticostriatal Projections Relying on GABA Levels Mediate Exercise-Induced Functional Recovery in Cerebral Ischemic Mice. Mol Neurobiol 2023; 60:1836-1853. [PMID: 36580196 DOI: 10.1007/s12035-022-03181-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 12/15/2022] [Indexed: 12/30/2022]
Abstract
Stroke is a neurological disorder characterized by high disability and death worldwide. The occlusion of the middle cerebral artery (MCAO) supplying the cortical motor regions and its projection pathway regions can either kill the cortical neurons or block their projections to the spinal cord and subcortical structure. The cerebral cortex is the primary striatal afferent, and the medium spiny neurons of the striatum have been identified as the major output neurons projecting to the substantia nigra and pallidum. Thus, disconnection of the corticostriatal circuit often occurs in the model of MCAO. In this study, we hypothesize that striatal network dysfunction in cerebral ischemic mice ultimately modulates the activity of striatal projections from cortical neurons to improve dysfunction during exercise training. In this study, we observed that the corticostriatal circuit originating from glutamatergic neurons could partially medicate the improvement of motor and anxiety-like behavior in mice with exercise. Furthermore, exercising or activating a single optogenetic corticostriatal circuit can increase the striatal gamma-aminobutyric acid (GABA) level. Using the GABA-A receptor antagonist, bicuculline, we further identified that the striatal glutamatergic projection from the cortical neurons relies on the GABAergic synapse's activity to modulate exercise-induced functional recovery. Overall, those results reveal that the dorsal striatum-projecting subpopulation of cortical glutamatergic neurons can influence GABA levels in the striatum, playing a critical role in modulating exercise-induced improvement of motor and anxiety-like behavior.
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Affiliation(s)
- Ying Xing
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, No. 12 Middle Wulumuqi Road, Jing'an District, Shanghai, 200040, People's Republic of China
| | - Anjing Zhang
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, No. 12 Middle Wulumuqi Road, Jing'an District, Shanghai, 200040, People's Republic of China
- Department of Neurological Rehabilitation Medicine, The First Rehabilitation Hospital of Shanghai, Shanghai, 200093, People's Republic of China
| | - Congqin Li
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, No. 12 Middle Wulumuqi Road, Jing'an District, Shanghai, 200040, People's Republic of China
| | - Jing Han
- State Key Laboratory of Medical Neurobiology, Department of Integrative Medicine and Neurobiology, Brain Science Collaborative Innovation Center, School of Basic Medical Sciences, Institutes of Brain Science, Fudan Institutes of Integrative Medicine, Fudan University, No. 130 Dong 'An Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Jun Wang
- State Key Laboratory of Medical Neurobiology, Department of Integrative Medicine and Neurobiology, Brain Science Collaborative Innovation Center, School of Basic Medical Sciences, Institutes of Brain Science, Fudan Institutes of Integrative Medicine, Fudan University, No. 130 Dong 'An Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Lu Luo
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, No. 12 Middle Wulumuqi Road, Jing'an District, Shanghai, 200040, People's Republic of China
| | - Xuechun Chang
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Zhanzhuang Tian
- State Key Laboratory of Medical Neurobiology, Department of Integrative Medicine and Neurobiology, Brain Science Collaborative Innovation Center, School of Basic Medical Sciences, Institutes of Brain Science, Fudan Institutes of Integrative Medicine, Fudan University, No. 130 Dong 'An Road, Xuhui District, Shanghai, 200032, People's Republic of China.
| | - Yulong Bai
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, No. 12 Middle Wulumuqi Road, Jing'an District, Shanghai, 200040, People's Republic of China.
- National Center for Neurological Disorders, Huashan Hospital, Fudan University, No. 12 Middle Wulumuqi Road, Jing'an District, Shanghai, 200040, People's Republic of China.
- National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Jing'an District, No. 12 Middle Wulumuqi Road, Shanghai, 200040, People's Republic of China.
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Post-Stroke Environmental Enrichment Improves Neurogenesis and Cognitive Function and Reduces the Generation of Aberrant Neurons in the Mouse Hippocampus. Cells 2023; 12:cells12040652. [PMID: 36831319 PMCID: PMC9954243 DOI: 10.3390/cells12040652] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/22/2023] Open
Abstract
Ischemic lesions stimulate adult neurogenesis in the dentate gyrus, however, this is not associated with better cognitive function. Furthermore, increased neurogenesis is associated with the formation of aberrant neurons. In a previous study, we showed that a running task after a stroke not only increases neurogenesis but also the number of aberrant neurons without improving general performance. Here, we determined whether stimulation in an enriched environment after a lesion could increase neurogenesis and cognitive function without enhancing the number of aberrant neurons. After an ischemic stroke induced by MCAO, animals were transferred to an enriched environment containing a running wheel, tunnels and nest materials. A GFP-retroviral vector was delivered on day 3 post-stroke and a modified water maze test was performed 6 weeks after the lesion. We found that the enriched environment significantly increased the number of new neurons compared with the unstimulated stroke group but not the number of aberrant cells after a lesion. Increased neurogenesis after environmental enrichment was associated with improved cognitive function. Our study showed that early placement in an enriched environment after a stroke lesion markedly increased neurogenesis and flexible learning but not the formation of aberrant neurons, indicating that rehabilitative training, as a combination of running wheel training and enriched environment housing, improved functional and structural outcomes after a stroke.
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Custodio RJP, Kim HJ, Kim J, Ortiz DM, Kim M, Buctot D, Sayson LV, Lee HJ, Kim BN, Yi EC, Cheong JH. Hippocampal dentate gyri proteomics reveals Wnt signaling involvement in the behavioral impairment in the THRSP-overexpressing ADHD mouse model. Commun Biol 2023; 6:55. [PMID: 36646879 PMCID: PMC9842619 DOI: 10.1038/s42003-022-04387-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/20/2022] [Indexed: 01/18/2023] Open
Abstract
Children with attention-deficit/hyperactivity disorder (ADHD) often struggle with impaired executive function, temporal processing, and visuospatial memory, hallmarks of the predominantly inattentive presentation (ADHD-PI), subserved by the hippocampus. However, the specific genes/proteins involved and how they shape hippocampal structures to influence ADHD behavior remain poorly understood. As an exploratory tool, hippocampal dentate gyri tissues from thyroid hormone-responsive protein overexpressing (THRSP OE) mice with defining characteristics of ADHD-PI were utilized in proteomics. Integrated proteomics and network analysis revealed an altered protein network involved in Wnt signaling. Compared with THRSP knockout (KO) mice, THRSP OE mice showed impaired attention and memory, accompanied by dysregulated Wnt signaling affecting hippocampal dentate gyrus cell proliferation and expression of markers for neural stem cell (NSC) activity. Also, combined exposure to an enriched environment and treadmill exercise could improve behavioral deficits in THRSP OE mice and Wnt signaling and NSC activity. These findings show new markers specific to the ADHD-PI presentation, converging with the ancient and evolutionary Wnt signaling pathways crucial for cell fate determination, migration, polarity, and neural patterning during neurodevelopment. These findings from THRSP OE mice support the role of Wnt signaling in neurological disorders, particularly ADHD-PI presentation.
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Affiliation(s)
- Raly James Perez Custodio
- grid.419241.b0000 0001 2285 956XDepartment of Ergonomics, Leibniz Research Centre for Working Environment and Human Factors - IfADo, Ardeystr. 67, 44139 Dortmund, Germany ,grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea ,grid.411545.00000 0004 0470 4320Institute for New Drug Development, College of Pharmacy, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si Jeollabuk-do, 54896 Republic of Korea
| | - Hee Jin Kim
- grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea
| | - Jiyeon Kim
- grid.31501.360000 0004 0470 5905Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Seoul National University, Seoul, 03080 Republic of Korea
| | - Darlene Mae Ortiz
- grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea
| | - Mikyung Kim
- grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea ,grid.412357.60000 0004 0533 2063Department of Chemistry & Life Science, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea
| | - Danilo Buctot
- grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea
| | - Leandro Val Sayson
- grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea
| | - Hyun Jun Lee
- grid.412357.60000 0004 0533 2063Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, 815 Hwarangro, Nowon-gu Seoul, 01795 Republic of Korea
| | - Bung-Nyun Kim
- grid.31501.360000 0004 0470 5905Department of Psychiatry and Behavioral Science, College of Medicine, Seoul National University, 101 Daehakro, Jongno-gu Seoul, 03080 Republic of Korea
| | - Eugene C. Yi
- grid.31501.360000 0004 0470 5905Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Seoul National University, Seoul, 03080 Republic of Korea
| | - Jae Hoon Cheong
- grid.411545.00000 0004 0470 4320Institute for New Drug Development, College of Pharmacy, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si Jeollabuk-do, 54896 Republic of Korea
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12
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Wang JX, Fidimanantsoa OL, Ma LX. New insights into acupuncture techniques for poststroke spasticity. Front Public Health 2023; 11:1155372. [PMID: 37089473 PMCID: PMC10117862 DOI: 10.3389/fpubh.2023.1155372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/15/2023] [Indexed: 04/25/2023] Open
Abstract
With the trend of aging population getting more obvious, stroke has already been a major public health problem worldwide. As a main disabling motor impairment after stroke, spasticity has unexpected negative impacts on the quality of life and social participation in patients. Moreover, it brings heavy economic burden to the family and society. Previous researches indicated that abnormality of neural modulation and muscle property corelates with the pathogenesis of poststroke spasticity (PSS). So far, there still lacks golden standardized treatment regimen for PSS; furthermore, certain potential adverse-events of the mainstream therapy, for example, drug-induced generalized muscle weakness or high risk related surgery somehow decrease patient preference and compliance, which brings challenges to disease treatment and follow-up care. As an essential non-pharmacological therapy, acupuncture has long been used for PSS in China and shows favorable effects on improvements of spastic hypertonia and motor function. Notably, previous studies focused mainly on the research of antispastic acupoints. In comparison, few studies lay special stress on the other significant factor impacting on acupuncture efficacy, that is acupuncture technique. Based on current evidences from the clinic and laboratory, we will discuss certain new insights into acupuncture technique, in particular the antispastic needling technique, for PSS management in light of its potential effects on central modulations as well as peripheral adjustments, and attempt to provide some suggestions for future studies with respect to the intervention timing and course, application of acupuncture techniques, acupoint selection, predictive and aggravating factors of PSS, aiming at optimization of antispastic acupuncture regimen and improvement of quality of life in stroke patients. More innovations including rigorous study design, valid objective assessments for spasticity, and related experimental studies are worthy to be expected in the years ahead.
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Affiliation(s)
- Jun-Xiang Wang
- School of Nursing, Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Jun-Xiang Wang,
| | | | - Liang-Xiao Ma
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
- The Key Unit of State Administration of Traditional Chinese Medicine, Evaluation of Characteristic Acupuncture Therapy, Beijing, China
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13
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Behmadi H, Samiei F, Noruzi M, Halvaei Khankahdani Z, Hassani S, Mehdizadeh M, Pourahmad J, Taghizadeh G, Sharifzadeh M. The Effect of Physical Exercise Pretreatment on Spatial Memory and Learning and Function of Mitochondria in the Brain in Type 2 Diabetic Rats. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2023; 22:e135315. [PMID: 38148890 PMCID: PMC10750786 DOI: 10.5812/ijpr-135315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 12/28/2023]
Abstract
Background The prevalence of type 2 diabetes mellitus (T2DM) is increasing worldwide, and this issue is one of the major concerns in the pending years. T2DM causes numerous complications, including cognition, learning, and memory impairments. The positive effect of physical exercise as a popular approach has been shown in many chronic diseases. Further, the improvement effects of exercise on cognition and memory impairment have been noticed. Objectives This study examines the possible preventative effects of physical exercise on spatial memory attenuation and brain mitochondrial dysfunction caused by T2DM. Methods Male Wistar rats received treadmill exercise (30 min per day, five days per week for two or four weeks). Then, T2DM was induced by a high-fat diet and an injection of streptozotocin (30 mg/kg). Spatial learning and memory were assessed by the Morris water maze test. Further, brain mitochondrial function, including reactive oxygen species (ROS) generation, mitochondrial membrane potential (MMP), mitochondrial swelling, outer membrane damage, cytochrome c release, and ADP/ATP ratio, were measured. Results Impaired spatial memory in T2DM rats was observed. Furthermore, brain mitochondrial dysfunction was demonstrated proved by increased ROS generation, MMP collapse, mitochondrial swelling, outer membrane damage, cytochrome c release, and ADP/ATP ratio. Conversely, physical exercise, before diabetes onset, significantly ameliorated spatial memory impairment and brain mitochondrial dysfunction. Conclusions This study reveals that physical exercise could prevent diabetes-induced spatial memory impairment. Moreover, it could ameliorate brain mitochondrial dysfunction as one of the possible underlying mechanisms of spatial memory impairment in T2DM.
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Affiliation(s)
- Homayoon Behmadi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Samiei
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Noruzi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Shokoufeh Hassani
- Pharmaceutical Sciences Research Center, The Institute of Pharmaceutical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mehdizadeh
- Department of Neurosciences, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Jalal Pourahmad
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ghorban Taghizadeh
- Department of Occupational Therapy, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sharifzadeh
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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14
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Hosseini L, Karimipour M, Seyedaghamiri F, Abolhasanpour N, Sadigh-Eteghad S, Mahmoudi J, Farhoudi M. Intranasal administration of mitochondria alleviated cognitive impairments and mitochondrial dysfunction in the photothrombotic model of mPFC stroke in mice. J Stroke Cerebrovasc Dis 2022; 31:106801. [DOI: 10.1016/j.jstrokecerebrovasdis.2022.106801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 11/05/2022] Open
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15
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Hossain MM, Belkadi A, Zhou X, DiCicco-Bloom E. Exposure to deltamethrin at the NOAEL causes ER stress and disruption of hippocampal neurogenesis in adult mice. Neurotoxicology 2022; 93:233-243. [DOI: 10.1016/j.neuro.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/29/2022] [Accepted: 10/07/2022] [Indexed: 11/15/2022]
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16
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Jia Y, Tang L, Yao Y, Zhuo L, Qu D, Chen X, Ji Y, Tao J, Zhu Y. Low-intensity exercise combined with sodium valproate attenuates kainic acid-induced seizures and associated co-morbidities by inhibiting NF-κB signaling in mice. Front Neurol 2022; 13:993405. [PMID: 36212646 PMCID: PMC9534325 DOI: 10.3389/fneur.2022.993405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Sodium valproate (VPA) is a broad-spectrum anticonvulsant that is effective both in adults and children suffering from epilepsy, but it causes psychiatric and behavioral side effects in patients with epilepsy. In addition, 30% of patients with epilepsy develop resistance to VPA. At present, regular physical exercise has shown many benefits and has become an effective complementary therapy for various brain diseases, including epilepsy. Therefore, we wondered whether VPA combined with exercise would be more effective in the treatment of seizures and associated co-morbidities. Here, we used a mouse model with kainic acid (KA)-induced epilepsy to compare the seizure status and the levels of related co-morbidities, such as cognition, depression, anxiety, and movement disorders, in each group using animal behavioral experiment and local field potential recordings. Subsequently, we investigated the mechanism behind this phenomenon by immunological means. Our results showed that low-intensity exercise combined with VPA reduced seizures and associated co-morbidities. This phenomenon seems to be related to the Toll-like receptor 4, activation of the nuclear factor kappa B (NF-κB), and release of interleukin 1β (IL-1β), tumor necrosis factor α (TNF-α), and IL-6. In brief, low-intensity exercise combined with VPA enhanced the downregulation of NF-κB-related inflammatory response, thereby alleviating the seizures, and associated co-morbidities.
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Affiliation(s)
- Yuxiang Jia
- School of Medicine, Shanghai University, Shanghai, China
| | - Lele Tang
- Department of Neurology and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Yao
- School of Medicine, Shanghai University, Shanghai, China
| | - Limin Zhuo
- School of Medicine, Shanghai University, Shanghai, China
| | - Dongxiao Qu
- Department of Neurology and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xingxing Chen
- Department of Neurology and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yonghua Ji
- School of Medicine, Shanghai University, Shanghai, China
- *Correspondence: Yonghua Ji
| | - Jie Tao
- Department of Neurology and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Jie Tao
| | - Yudan Zhu
- Department of Neurology and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Yudan Zhu
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Shabani Z, Soltani Zangbar H, Nasrolahi A. Cerebral dopamine neurotrophic factor increases proliferation, Migration and differentiation of subventricular zone neuroblasts in photothrombotic stroke model of mouse. J Stroke Cerebrovasc Dis 2022; 31:106725. [PMID: 36116218 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 07/26/2022] [Accepted: 08/08/2022] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Cerebral ischemic stroke can induce the proliferation of subventricular zone (SVZ) neural stem cells (NSCs) in the adult brain. However, this reparative process is restricted because of NSCs' death shortly after injury or disability of them to reach the infarct boundary. In the present study, we investigated the ability of cerebral dopamine neurotrophic factor (CDNF) on the attraction of SVZ-resident NSCs toward the lesioned area and neurological recovery in a photothrombotic (PT) stroke model of mice METHODS: The mice were assigned to three groups stroke, stroke+phosphate buffered saline (PBS), and stroke+CDNF. Migration of SVZ NSCs were evaluated by BrdU/doublecortin (DCX) double immunofluorescence method on days 7 and 14 and their differentiation were evaluated by BrdU/ Neuronal Nuclei (NeuN) double immunofluorescence method 28 days after intra-SVZ CDNF injection. Serial coronal sections were stained with cresyl violet to detect the infarct volume and a modified neurological severity score (mNSS) was performed to assess the neurological performance RESULTS: Injection of CDNF increased the proliferation of SVZ NSCs and the number of DCX-expressing neuroblasts migrated from the SVZ toward the ischemic site. It also enhanced the differentiation of migrated neuroblasts into the mature neurons in the lesioned site. Along with this, the infarct volume was significantly decreased and the neurological performance was improved as compared to other groups CONCLUSION: These results demonstrate that CDNF is capable of enhancing the proliferation of NSCs residing in the SVZ and their migration toward the ischemia region and finally, differentiation of them in stroke mice, concomitantly decreased infarct volume and improved neurological abilities were revealed.
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Affiliation(s)
- Zahra Shabani
- Center for Cerebrovascular Research, University of California, San Francisco, California, USA; Infectious Ophthalmologic Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hamid Soltani Zangbar
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ava Nasrolahi
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Cai C, Wang L, Li S, Lou S, Luo JL, Fu DY, Chen T. Ras Inhibitor Lonafarnib Rescues Structural and Functional Impairments of Synapses of Aβ 1-42 Mice via α7nAChR-Dependent BDNF Upregulation. J Neurosci 2022; 42:6090-6107. [PMID: 35760529 PMCID: PMC9351638 DOI: 10.1523/jneurosci.1989-21.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 05/30/2022] [Accepted: 06/21/2022] [Indexed: 02/05/2023] Open
Abstract
Alzheimer's disease (AD) is characterized pathologically by the structural and functional impairments of synapses in the hippocampus, inducing the learning and memory deficiencies. Ras GTPase is closely related to the synaptic function and memory. This study was to investigate the effects of farnesyl transferase inhibitor lonafarnib on the synaptic structure and function in AD male mice and explore the potential mechanism. Our results showed 50 mg/kg lonafarnib (intraperitoneal) rescued the impaired spatial memory and improved the damaged synaptic transmission and plasticity of Aβ1-42 mice. In addition, lonafarnib ameliorated the morphology of synaptic dendrites and spines in Aβ1-42 mice. Furthermore, lonafarnib enhanced α7nAChR cell surface expression and phosphorylation of downstream Akt and CaMKII in Aβ1-42 mice, which were inhibited by α7nAChR antagonist methyl lycaconitine (MLA), and increased the phosphorylation of CREB in a CaMKII- but not ERK-dependent way. Lonafarnib enhanced hippocampal brain-derived neurotrophic factor (BDNF) concentration in Aβ1-42 mice, which was sensitive to MLA and KN93 (an inhibitor of CaMKII), but not related to ERK and Akt pathways. H-Ras, but not Rhes, was related to the lonafarnib induced improvement of α7nAChR cell surface expression and BDNF content. Interestingly, lonafarnib induced improvement of synaptic transmission, plasticity and spatial cognition in Aβ1-42 mice was abolished by BDNF deprivation with TrkB/Fc chimera protein. Our results indicate that lonafarnib can rescue the structural and functional impairments of synapses in the Aβ1-42 mice, which may be related to the improvement of BDNF content through the H-Ras-α7nAChR-dependent CaMKII-CREB pathway, leading to the improvement of spatial cognition.SIGNIFICANCE STATEMENT Alzheimer's disease (AD) is characterized pathologically by the structural and functional impairments of synapses in the hippocampus, inducing the learning and memory deficiencies. However, no effective drugs have not been developed for the treatment of AD synaptic. This study for the first time reported the beneficial effects of Ras inhibitor lonafarnib on the synaptic structure and function in AD mice, providing an alternative way for the treatment of "synaptic disease" in AD patients.
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Affiliation(s)
- Chengyun Cai
- School of Life Science, Nantong University, Nantong, Jiangsu 226019, China
| | - Lifeng Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu 226006, China
- Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu 226006, China
| | - Shixin Li
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu 226006, China
- Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu 226006, China
| | - Shengchun Lou
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu 226006, China
- Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu 226006, China
| | - Jia-Lie Luo
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu 226006, China
- Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu 226006, China
| | - Ding-Yi Fu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu 226006, China
- Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu 226006, China
| | - Tingting Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, Jiangsu 226006, China
- Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu 226006, China
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Liang X, Tang J, Qi YQ, Luo YM, Yang CM, Dou XY, Jiang L, Xiao Q, Zhang L, Chao FL, Zhou CN, Tang Y. Exercise more efficiently regulates the maturation of newborn neurons and synaptic plasticity than fluoxetine in a CUS-induced depression mouse model. Exp Neurol 2022; 354:114103. [PMID: 35525307 DOI: 10.1016/j.expneurol.2022.114103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 11/24/2022]
Abstract
Depression, a common and important cause of morbidity and mortality worldwide, is commonly treated with antidepressants, electric shock and psychotherapy. Recently, increasing evidence has shown that exercise can effectively alleviate depression. To determine the difference in efficacy between exercise and the classic antidepressant fluoxetine in treating depression, we established four groups: the Control, chronic unpredictable stress (CUS/STD), running (CUS/RUN) and fluoxetine (CUS/FLX) groups. The sucrose preference test (SPT), the forced swimming test (FST), the tail suspension test (TST), immunohistochemistry, immunofluorescence and stereological analyses were used to clarify the difference in therapeutic efficacy and mechanism between exercise and fluoxetine in the treatment of depression. In the seventh week, the sucrose preference of the CUS/RUN group was significantly higher than that of the CUS/STD group, while the sucrose preference of the CUS/FLX group did not differ from that of the CUS/STD group until the eighth week. Exercise reduced the immobility time in the FST and TST, while fluoxetine only reduced immobility time in the TST. Hippocampal structure analysis showed that the CUS/STD group exhibited an increase in immature neurons and a decrease in mature neurons. Exercise reduced the number of immature neurons and increased the number of mature neurons, but no increase in the number of mature neurons was observed after fluoxetine treatment. In addition, both running and fluoxetine reversed the decrease in the number of MAP2+ dendrites in depressed mice. Exercise increased the number of spinophilin-positive (Sp+) dendritic spines in the hippocampal CA1, CA3, and dentate gyrus (DG) regions, whereas fluoxetine only increased the number of SP+ spines in the DG. In summary, exercise promoted newborn neuron maturation in the DG and regulated neuronal plasticity in three hippocampal subregions, which might explain why running exerts earlier and more comprehensive antidepressant effects than fluoxetine.
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Affiliation(s)
- Xin Liang
- Department of Pathophysiology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Jing Tang
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Histology and Embryology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Ying-Qiang Qi
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, PR China
| | - Yan-Min Luo
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Physiology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Chun-Mao Yang
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Xiao-Yun Dou
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, PR China
| | - Lin Jiang
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Lab Teaching & Management Center, Chongqing Medical University, Chongqing 400016, PR China
| | - Qian Xiao
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Radioactive Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Lei Zhang
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Histology and Embryology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Feng-Lei Chao
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Histology and Embryology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Chun-Ni Zhou
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Histology and Embryology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Yong Tang
- Laboratory of Stem Cells and Tissue Engineering, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China; Department of Histology and Embryology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, PR China.
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Zhu Y, Sun Y, Hu J, Pan Z. Insight Into the Mechanism of Exercise Preconditioning in Ischemic Stroke. Front Pharmacol 2022; 13:866360. [PMID: 35350755 PMCID: PMC8957886 DOI: 10.3389/fphar.2022.866360] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/21/2022] [Indexed: 01/07/2023] Open
Abstract
Exercise preconditioning has attracted extensive attention to induce endogenous neuroprotection and has become the hotspot in neurotherapy. The training exercise is given multiple times before cerebral ischemia, effectively inducing ischemic tolerance and alleviating secondary brain damage post-stroke. Compared with other preconditioning methods, the main advantages of exercise include easy clinical operation and being readily accepted by patients. However, the specific mechanism behind exercise preconditioning to ameliorate brain injury is complex. It involves multi-pathway and multi-target regulation, including regulation of inflammatory response, oxidative stress, apoptosis inhibition, and neurogenesis promotion. The current review summarizes the recent studies on the mechanism of neuroprotection induced by exercise, providing the theoretical basis of applying exercise therapy to prevent and treat ischemic stroke. In addition, we highlight the various limitations and future challenges of translational medicine from fundamental study to clinical application.
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Affiliation(s)
- Yuanhan Zhu
- Department of Neurosurgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Yulin Sun
- Department of Neurosurgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Jichao Hu
- Department of Orthopedics, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Zhuoer Pan
- Department of Orthopedics, Zhejiang Rongjun Hospital, Jiaxing, China
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Preischemic Treadmill Exercise Ameliorates Memory Impairment and Microvasculature Damage in Rat Model of Chronic Cerebral Hypoperfusion. Int Neurourol J 2021; 25:S72-80. [PMID: 34844389 PMCID: PMC8654316 DOI: 10.5213/inj.2142340.170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/29/2021] [Indexed: 12/11/2022] Open
Abstract
Purpose Silent information regulator 1 (SIRT1) in the brain is essential for maintaining cellular homeostasis and plays a neuroprotective role in cerebral ischemia and neurodegenerative disorders. The effect of preischemic treadmill exercise on chronic cerebral hypoperfusion (CCH)-induced spatial learning memory impairment, microvascular injury, and blood-brain barrier (BBB) disruption in relation with SIRT1 expression was evaluated. Methods Prior to bilateral common carotid artery occlusion (BCCAO) surgery, the rats in the exercise groups performed low-intensity treadmill running for 30 minutes once daily during 8 weeks. BCCAO surgery was performed on male Wistar rats at 12 weeks of age. Spatial learning memory was measured using the Morris water maze test. Neuronal nuclear antigen, SIRT1, and rat endothelial cells antigen 1 were determined by immunohistochemistry and platelet-derived growth factor receptor beta was determined by immunofluorescence. Results Preischemic treadmill exercise ameliorated spatial learning memory impairment and enhanced SIRT1 expression in the BCCAO rats. Preischemic treadmill exercise ameliorated BCCAO-induced damage to microvasculature and pericytes that make up the BBB. The effect of preischemic treadmill exercise was lost with sirtinol treatment. Conclusions These results can apply treadmill exercise prior to cerebral ischemia as a rational preventive and therapeutic intervention strategy to improve cognitive dysfunction in CCH patients.
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Vojta Approach Affects Neck Stability and Static Balance in Sitting Position of Children With Hypotonia. Int Neurourol J 2021; 25:S90-95. [PMID: 34844391 PMCID: PMC8654318 DOI: 10.5213/inj.2142344.172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/22/2021] [Indexed: 11/10/2022] Open
Abstract
Purpose In this study, the effect of the Vojta approach on neck stability and static balance in children with hypotonia was studied. Methods Seventeen children with hypotonia were randomly divided into the Vojta approach group (n=9) and the general physical therapy group (n=8). Each group was applied intervention for 30 minutes per session, 3 times a week, for a total of 4 weeks. Ultrasonography was used to measure deep neck flexor muscle thickness, craniovertebral angle (CVA) to measure neck alignment along the spine segment, and Balancia software program to measure static balance. Results In the Vojta approach group, the deep neck flexor muscle thickness was significantly increased (P<0.05), and the CVA was significantly improved (P<0.05). In addition, path area among static balance was significantly improved (P<0.05). Conclusions The Vojta approach can be suggested as an effective intervention method for improving neck stability and static balance in children with hypotonia.
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Resistance Exercise Improves Spatial Learning Ability Through Phosphorylation of 5'-Adenosine Monophosphate-Activated Protein Kinase in Parkinson Disease Mice. Int Neurourol J 2021; 25:S55-62. [PMID: 34844387 PMCID: PMC8654314 DOI: 10.5213/inj.2142336.168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 10/20/2021] [Indexed: 12/29/2022] Open
Abstract
Purpose Exercise is a representative noninvasive treatment that can be applied to various diseases. We studied the effect of resistance exercise on motor function and spatial learning ability in Parkinson disease (PD) mice. Methods The rotarod test and beam walking test were conducted to evaluate the effect of resistance exercise on motor function, and the Morris water maze test was conducted to examine the effect of resistance exercise on spatial learning ability. The effect of resistance exercise on brain-derived neurotrophic factor (BDNF) and tropomyosin receptor kinase B (TrkB) expression and 5’-adenosine monophosphate-activated protein kinase (AMPK) phosphorylation was investigated by Western blot analysis. New cell generation was confirmed by immunohistochemistry for 5-bromo-2’-deoxyuridine. Results Resistance exercise improved coordination, balance, and spatial learning ability in PD mice. Resistance exercise enhanced new cell production, BDNF and TrkB expression, and AMPK phosphorylation in PD mice. The effect of such resistance exercise was similar to that of levodopa application. Conclusions In PD-induced mice, resistance exercise enhanced AMPK phosphorylation to increase BDNF expression and new neuron generation, thereby improving spatial learning ability. Resistance exercise is believed to help improve symptoms of PD.
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Treadmill Exercise Ameliorates Short-term Memory Impairment by Suppressing Hippocampal Neuroinflammation in Poloxamer-407-Induced Hyperlipidemia Rats. Int Neurourol J 2021; 25:S81-89. [PMID: 34844390 PMCID: PMC8654313 DOI: 10.5213/inj.2142342.171] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/28/2021] [Indexed: 11/08/2022] Open
Abstract
PURPOSE Poloxamer-407 (P-407) is used to induce hyperlipidemia. Exercise is effective in improving arteriosclerosis and cognitive impairment. In this research, the effect of treadmill running on short-term memory in the P-407-treated hyperlipidemia rats was studied focusing on neuroinflammation. METHODS Rats were classified in normal group, normal and treadmill exercise group, P-407-treated group, and P-407-treated and treadmill exercise group. Hyperlipidemia rats were made by single intraperitoneal injection with P-407 (500 mg/kg). Treadmill exercise was conducted for 30 minutes once a day, 5 days per week during 28 days. Step-down avoidance task was done to measure short-term memory. Glial fibrillary acidic protein and ionized calcium binding adaptor molecule 1 were assessed by immunohistochemistry. Expression of adhesion molecules and proinflammatory cytokines was determined by western blot analysis. RESULTS Treadmill exercise alleviated lipid profiles in the P-407-induced hyperlipidemia rats. Treadmill exercise improved short-term memory, inhibited reactive astrogliosis and microglia activation, and suppressed expression of adhesion molecules and proinflammatory cytokines in the hyperlipidemic rats. CONCLUSION Treadmill exercise exerts alleviating effect on memory deficits by inhibiting hippocampal neuroinflammation in the hyperlipidemia. The current results suggest that treadmill running serves as the treatment strategy for the cognitive dysfunction caused by hyperlipidemia.
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Ceanga M, Dahab M, Witte OW, Keiner S. Adult Neurogenesis and Stroke: A Tale of Two Neurogenic Niches. Front Neurosci 2021; 15:700297. [PMID: 34447293 PMCID: PMC8382802 DOI: 10.3389/fnins.2021.700297] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 06/30/2021] [Indexed: 01/17/2023] Open
Abstract
In the aftermath of an acute stroke, numerous signaling cascades that reshape the brain both in the perilesional zone as well as in more distal regions are activated. Despite continuous improvement in the acute treatment of stroke and the sustained research efforts into the pathophysiology of stroke, we critically lag in our integrated understanding of the delayed and chronic responses to ischemic injury. As such, the beneficial or maladaptive effect of some stroke-induced cellular responses is unclear, restricting the advancement of therapeutic strategies to target long-term complications. A prominent delayed effect of stroke is the robust increase in adult neurogenesis, which raises hopes for a regenerative strategy to counter neurological deficits in stroke survivors. In the adult brain, two regions are known to generate new neurons from endogenous stem cells: the subventricular zone (SVZ) and the dentate subgranular zone (SGZ) of the hippocampus. While both niches respond with an increase in neurogenesis post-stroke, there are significant regional differences in the ensuing stages of survival, migration, and maturation, which may differently influence functional outcome. External interventions such as rehabilitative training add a further layer of complexity by independently modulating the process of adult neurogenesis. In this review we summarize the current knowledge regarding the effects of ischemic stroke on neurogenesis in the SVZ and in the SGZ, and the influence of exogenous stimuli such as motor activity or enriched environment (EE). In addition, we discuss the contribution of SVZ or SGZ post-stroke neurogenesis to sensory, motor and cognitive recovery.
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Affiliation(s)
- Mihai Ceanga
- Hans-Berger Department of Neurology, Jena University Hospital, Jena, Germany
- Section Translational Neuroimmunology, Department of Neurology, Jena University Hospital, Jena, Germany
| | - Mahmoud Dahab
- Hans-Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Otto W. Witte
- Hans-Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Silke Keiner
- Hans-Berger Department of Neurology, Jena University Hospital, Jena, Germany
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Stephan JS, Sleiman SF. Exercise Factors Released by the Liver, Muscle, and Bones Have Promising Therapeutic Potential for Stroke. Front Neurol 2021; 12:600365. [PMID: 34108925 PMCID: PMC8181424 DOI: 10.3389/fneur.2021.600365] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 05/03/2021] [Indexed: 01/15/2023] Open
Abstract
Stroke is one of the leading causes of death and disability in the world. Stroke not only affects the patients, but also their families who serve as the primary caregivers. Discovering novel therapeutic targets for stroke is crucial both from a quality of life perspective as well as from a health economic perspective. Exercise is known to promote neuroprotection in the context of stroke. Indeed, exercise induces the release of blood-borne factors that promote positive effects on the brain. Identifying the factors that mediate the positive effects of exercise after ischemic stroke is crucial for the quest for novel therapies. This approach will yield endogenous molecules that normally cross the blood brain barrier (BBB) and that can mimic the effects of exercise. In this minireview, we will discuss the roles of exercise factors released by the liver such as beta-hydroxybutyrate (DBHB), by the muscle such as lactate and irisin and by the bones such as osteocalcin. We will also address their therapeutic potential in the context of ischemic stroke.
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Affiliation(s)
- Joseph S Stephan
- School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Sama F Sleiman
- Biology Program, Lebanese American University, Byblos, Lebanon
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Shamsipour S, Sharifi G, Taghian F. Impact of interval training with probiotic (L. plantarum / Bifidobacterium bifidum) on passive avoidance test, ChAT and BDNF in the hippocampus of rats with Alzheimer's disease. Neurosci Lett 2021; 756:135949. [PMID: 33974953 DOI: 10.1016/j.neulet.2021.135949] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/20/2021] [Accepted: 05/06/2021] [Indexed: 02/05/2023]
Abstract
It has been suggested that gut microbiota dysbiosis can lead to Alzheimer's disease (AD), inducing the production of many AD-related pre-inflammatory cytokines. On the other hand, daily probiotic administration and regular exercise training are assumed to improve clinical AD-related symptoms. To take this line of research further, this study was aimed at investigating the impact of moderate-intensity interval training (MIIT) with a combined administration of Lactobacillus plantarum and Bifidobacterium bifidum (probiotic, BROB) on the passive avoidance test (Shuttle Box), choline acetyltransferase (ChAT) and the brain derived neurotrophic factor (BDNF) in the hippocampus of a rat model of AD. Forty male Wistar rats (280 ± 20 g) were divided into five groups (n = 8 in each) of control, amyloid beta peptide (Aβ), Aβ + MIIT (AD rats undergoing MIIT), Aβ + PROB (AD rats fed Lactobacillus plantarum and Bifidobacterium bifidum), and Aβ + MIIT + PROB (AD rats receiving both treatments). AD was induced by the intra-cerebroventricular injection of Aβ1-42 peptide. MIIT was performed on rodent treadmill for 8 weeks (5 days per week). The probiotic was also fed daily to the related groups for 8 weeks. BDNF and ChAT in the hippocampus were measured by real time PCR (RT-PCR) and immunohistochemistry (IHC), respectively. Cresyl violet staining of brain tissue was performed to evaluate the dead cells. Results of tissue staining showed that the induction of the Alzheimer's led to the destruction of hippocampal cells and induced neurodegeneration (p = 0.001). Results of the shuttle box test showed that short-term memory was improved in the Aβ + MIIT + PROB group compared to the Aβ group, while death cells (dark cells) were decreased in all the other three groups (MIIT, BROB, and Aβ + MIIT + PROB). Levels of ChAT as well as the BDNF mRNA in the Aβ + MIIT + PROB group showed a significant increase compared to the Aβ group. In conclusion, it seems that the use of the combined administration of Lactobacillus plantarum and Bifidobacterium bifidum with interval aerobic exercise can have neuroprotective effects on AD.
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Affiliation(s)
- Samaneh Shamsipour
- Department of Physical Education and Sport Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Gholamreza Sharifi
- Department of Physical Education and Sport Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Farzaneh Taghian
- Department of Physical Education and Sport Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
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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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Hugues N, Pellegrino C, Rivera C, Berton E, Pin-Barre C, Laurin J. Is High-Intensity Interval Training Suitable to Promote Neuroplasticity and Cognitive Functions after Stroke? Int J Mol Sci 2021; 22:3003. [PMID: 33809413 PMCID: PMC7998434 DOI: 10.3390/ijms22063003] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/12/2022] Open
Abstract
Stroke-induced cognitive impairments affect the long-term quality of life. High-intensity interval training (HIIT) is now considered a promising strategy to enhance cognitive functions. This review is designed to examine the role of HIIT in promoting neuroplasticity processes and/or cognitive functions after stroke. The various methodological limitations related to the clinical relevance of studies on the exercise recommendations in individuals with stroke are first discussed. Then, the relevance of HIIT in improving neurotrophic factors expression, neurogenesis and synaptic plasticity is debated in both stroke and healthy individuals (humans and rodents). Moreover, HIIT may have a preventive role on stroke severity, as found in rodents. The potential role of HIIT in stroke rehabilitation is reinforced by findings showing its powerful neurogenic effect that might potentiate cognitive benefits induced by cognitive tasks. In addition, the clinical role of neuroplasticity observed in each hemisphere needs to be clarified by coupling more frequently to cellular/molecular measurements and behavioral testing.
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Affiliation(s)
- Nicolas Hugues
- INMED, INSERM, Aix-Marseille University, 13007 Marseille, France; (N.H.); (C.P.); (C.R.)
- CNRS, ISM, Aix-Marseille University, 13007 Marseille, France; (E.B.); (C.P.-B.)
| | - Christophe Pellegrino
- INMED, INSERM, Aix-Marseille University, 13007 Marseille, France; (N.H.); (C.P.); (C.R.)
| | - Claudio Rivera
- INMED, INSERM, Aix-Marseille University, 13007 Marseille, France; (N.H.); (C.P.); (C.R.)
| | - Eric Berton
- CNRS, ISM, Aix-Marseille University, 13007 Marseille, France; (E.B.); (C.P.-B.)
| | - Caroline Pin-Barre
- CNRS, ISM, Aix-Marseille University, 13007 Marseille, France; (E.B.); (C.P.-B.)
| | - Jérôme Laurin
- INMED, INSERM, Aix-Marseille University, 13007 Marseille, France; (N.H.); (C.P.); (C.R.)
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