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Zhvania MG, Lobzhanidze G, Pochkhidze N, Japaridze N, Tchelidze P, Rzayev F, Gasimov E. Propionic acid affects the synaptic architecture of rat hippocampus and prefrontal cortex. Micron 2024; 181:103624. [PMID: 38492241 DOI: 10.1016/j.micron.2024.103624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/24/2024] [Accepted: 03/03/2024] [Indexed: 03/18/2024]
Abstract
It is well documented that propionic acid (PPA) produces behavioral, morphological, molecular and immune responses in rats that are characteristic of autism spectrum disorder in humans. However, whether PPA affects the ultrastructure and synaptic architecture of regions of autistic brain has not been adequately addressed. Earlier we show that single intraperitoneal (IP) injection of PPA (175 mg/kg) produces superficial changes in the spatial memory and learning of adolescent male Wistar rats. However, in neurons, synapses and glial cells of hippocampal CA1 area and medial prefrontal cortex transient (mainly) or enduring alterations were detected. In this study, we used electron microscopic morphometric analysis to test the effect of PPA on different structural parameters of axodendritic synapses of the hippocampus and prefrontal cortex. The animals were treated with a single IP injection of PPA (175 mg/kg). The length and width of synaptic active zone, the area of presynaptic and postsynaptic mitochondria, the distance between presynaptic mitochondria and the synapse active zone, the distance between postsynaptic mitochondria and postsynaptic density and the depth and opening diameter of neuronal porosome complex were evaluated. Our results show that synaptic mitochondria of the hippocampus and prefrontal cortex are the most vulnerable to PPA treatment: in both regions, the area of postsynaptic mitochondria were increased. In general, our results show that even small dose of PPA, which produces only superficial effects on spatial memory and learning is able to alter the synapse architecture in brain regions involved in cognition and autism pathogenesis. Therefore, the microbiome may be involved in the control of neurotransmission in these regions.
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Affiliation(s)
- Mzia G Zhvania
- School of Natural Sciences and Medicine, Ilia State University, 3/5 K. Cholokashvili Avenue, Tbilisi 0162, Georgia; Department of Brain Ultrastructure and Nanoarchitecture, Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua Street, Tbilisi 0160, Georgia.
| | - Giorgi Lobzhanidze
- Department of Brain Ultrastructure and Nanoarchitecture, Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua Street, Tbilisi 0160, Georgia
| | - Nino Pochkhidze
- School of Natural Sciences and Medicine, Ilia State University, 3/5 K. Cholokashvili Avenue, Tbilisi 0162, Georgia; Department of Brain Ultrastructure and Nanoarchitecture, Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua Street, Tbilisi 0160, Georgia
| | - Nadezhda Japaridze
- Department of Brain Ultrastructure and Nanoarchitecture, Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua Street, Tbilisi 0160, Georgia; New Vision University, 1A Evgeni Mikeladze Street, Tbilisi 0159, Georgia
| | - Pavel Tchelidze
- New Vision University, 1A Evgeni Mikeladze Street, Tbilisi 0159, Georgia
| | - Fuad Rzayev
- Azerbaijan Medical University, 23 Bakikhanov Street, Baku 1022, Azerbaijan
| | - Eldar Gasimov
- Azerbaijan Medical University, 23 Bakikhanov Street, Baku 1022, Azerbaijan
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Zhang H, Niu JJ, Zhou H, Hu YK, Li WC, Ma JL, Liao XB, Ma KJ, Chen L. 8-oxoguanine DNA glycosylase-1 may serve as biomarker of mechanical asphyxia. Forensic Sci Int 2024; 361:112071. [PMID: 38870577 DOI: 10.1016/j.forsciint.2024.112071] [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: 04/14/2024] [Accepted: 05/26/2024] [Indexed: 06/15/2024]
Abstract
AIM To identify mtDNA and OGG1 as potential biomarker candidates for mechanical asphyxia. METHOD The human tissues are divided into experimental group (hanging and strangulation) and control groups (hemorrhagic shock, brain injury group, and poisoning group). Detected the expression of OGG1 and integrity of mtDNA in cardiac tissue of each group. We used over-OGG1 vector and siRNA-OGG1 transfecting H9C2 cell line to observe the function of OGG1 in hypoxic cells. RESULTS 1. mtDNA integrity decreased in the mechanical asphyxia group, OGG1 expression increased in mechanical asphyxia groups. They can be biomarkers for mechanical asphyxia. 2. OGG1 increased first and decreased in hypoxia-induced H9C2 cells. OGG1 upregulated the TFAM, NRF1, and Bcl2 in hypoxia-induced H9C2. OGG1 downregulated cleaved-Caspase3 in hypoxia-induced H9C2 cells. 3. In the normoxia condition, NAC maintained mtDNA integrity and decreased the mitochondrial membrane potential and amount of ATP. CONCLUSION mtDNA integrity and OGG1 expression can be biomarkers for mechanical asphyxia. OGG1 can maintain mtDNA integrity and maintain the stability of the mitochondrial membrane.
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Affiliation(s)
- Heng Zhang
- Department of Forensic Medicine, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Jing-Jing Niu
- Department of Forensic Medicine, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Hao Zhou
- Hefei Public Security Bureau of Anhui Province, Hefei, China
| | - Yi-Kai Hu
- Department of Forensic Medicine, School of Basic Medicine, Fudan University, Shanghai, China
| | - Wen-Can Li
- Pudong Branch of Shanghai Municipal Public Security Bureau, Shanghai, China
| | - Jian-Long Ma
- Shenzhen Institute of Criminal Science and Technology, Investigation Department of Shenzhen Public Security Bureau, Key Laboratory of Forensic Pathology, Ministry of Public Security, Shenzhen, China
| | - Xin-Biao Liao
- Criminal Technology Center of Guangdong Provincial Public Security Department, Guangzhou, China.
| | - Kai-Jun Ma
- Shanghai Public Security Bureau, Shanghai, China.
| | - Long Chen
- Department of Forensic Medicine, School of Basic Medicine, Fudan University, Shanghai, China.
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Zhu S, Shi J, Jin Q, Zhang Y, Zhang R, Chen X, Wang C, Shi T, Li L. Mitochondrial dysfunction following repeated administration of alprazolam causes attenuation of hippocampus-dependent memory consolidation in mice. Aging (Albany NY) 2023; 15:10428-10452. [PMID: 37801512 PMCID: PMC10599724 DOI: 10.18632/aging.205087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/12/2023] [Indexed: 10/08/2023]
Abstract
The frequently repeated administration of alprazolam (Alp), a highly effective benzodiazepine sedative-hypnotic agent, in anxiety, insomnia, and other diseases is closely related to many negative adverse reactions that are mainly manifested as memory impairment. However, the exact molecular mechanisms underlying these events are poorly understood. Therefore, we conducted a proteomic analysis on the hippocampus in mice that received repeated administration of Alp for 24 days. A total of 439 significantly differentially expressed proteins (DEPs) were identified in mice with repeated administration of Alp compared to the control group, and the GO and KEGG analysis revealed the enrichment of terms related to mitochondrial function, cycle, mitophagy and cognition. In vitro experiments have shown that Alp may affect the cell cycle, reduce the mitochondrial membrane potential (MMP) to induce apoptosis in HT22 cells, and affect the progress of mitochondrial energy metabolism and morphology in the hippocampal neurons. Furthermore, in vivo behavioral experiments including IntelliCage System (ICS) and nover object recognition (NOR), hippocampal neuronal pathological changes with HE staining, and the expression levels of brain-deprived neuron factor (BDNF) with immunohistochemistry showed a significant decrease in memory consolidation in mice with repeated administration of Alp, which could be rescued by the co-administration of the mitochondrial protector NSI-189. To the best of our knowledge, this is the first study to identify a link between repeated administration of Alp and mitochondrial dysfunction and that mitochondrial impairment directly causes the attenuation of memory consolidation in mice.
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Affiliation(s)
- Siqing Zhu
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Jingjing Shi
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Qian Jin
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Yi Zhang
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Ruihua Zhang
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Xuejun Chen
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Chen Wang
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Tong Shi
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
| | - Liqin Li
- State Key Laboratory of NBC Protection for Civilian, Changping, Beijing 102205, China
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Buchanan E, Mahony C, Bam S, Jaffer M, Macleod S, Mangali A, van der Watt M, de Wet S, Theart R, Jacobs C, Loos B, O'Ryan C. Propionic acid induces alterations in mitochondrial morphology and dynamics in SH-SY5Y cells. Sci Rep 2023; 13:13248. [PMID: 37582965 PMCID: PMC10427685 DOI: 10.1038/s41598-023-40130-8] [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: 12/30/2022] [Accepted: 08/04/2023] [Indexed: 08/17/2023] Open
Abstract
Propionic acid (PPA) is used to study the role of mitochondrial dysfunction in neurodevelopmental conditions like autism spectrum disorders. PPA is known to disrupt mitochondrial biogenesis, metabolism, and turnover. However, the effect of PPA on mitochondrial dynamics, fission, and fusion remains challenging to study due to the complex temporal nature of these mechanisms. Here, we use complementary quantitative visualization techniques to examine how PPA influences mitochondrial ultrastructure, morphology, and dynamics in neuronal-like SH-SY5Y cells. PPA (5 mM) induced a significant decrease in mitochondrial area (p < 0.01), Feret's diameter and perimeter (p < 0.05), and in area2 (p < 0.01). Mitochondrial event localiser analysis demonstrated a significant increase in fission and fusion events (p < 0.05) that preserved mitochondrial network integrity under stress. Moreover, mRNA expression of cMYC (p < 0.0001), NRF1 (p < 0.01), TFAM (p < 0.05), STOML2 (p < 0.0001), and OPA1 (p < 0.01) was significantly decreased. This illustrates a remodeling of mitochondrial morphology, biogenesis, and dynamics to preserve function under stress. Our data provide new insights into the influence of PPA on mitochondrial dynamics and highlight the utility of visualization techniques to study the complex regulatory mechanisms involved in the mitochondrial stress response.
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Affiliation(s)
- Erin Buchanan
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, 7700, South Africa
| | - Caitlyn Mahony
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, 7700, South Africa
| | - Sophia Bam
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, 7700, South Africa
| | - Mohamed Jaffer
- Electron Microscope Unit, University of Cape Town, Cape Town, 7700, South Africa
| | - Sarah Macleod
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, 7700, South Africa
| | - Asandile Mangali
- Department of Physiological Sciences, Stellenbosch University, Matieland, Stellenbosch, 7602, South Africa
| | - Mignon van der Watt
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, 7700, South Africa
| | - Sholto de Wet
- Department of Physiological Sciences, Stellenbosch University, Matieland, Stellenbosch, 7602, South Africa
| | - Rensu Theart
- Department of Electrical and Electronic Engineering, Stellenbosch University, Matieland, Stellenbosch, 7602, South Africa
| | - Caron Jacobs
- Department of Pathology, Wellcome Centre for Infectious Diseases Research in Africa and IDM Microscopy Platform, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, 7700, South Africa
| | - Ben Loos
- Department of Physiological Sciences, Stellenbosch University, Matieland, Stellenbosch, 7602, South Africa
| | - Colleen O'Ryan
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, 7700, South Africa.
- Neuroscience Institute, University of Cape Town, Cape Town, 7700, South Africa.
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Bagcioglu E, Solmaz V, Erbas O, Özkul B, Çakar B, Uyanikgil Y, Söğüt İ. Modafinil Improves Autism-like Behavior in Rats by Reducing Neuroinflammation. J Neuroimmune Pharmacol 2023; 18:9-23. [PMID: 37043086 DOI: 10.1007/s11481-023-10061-2] [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: 10/12/2022] [Accepted: 03/16/2023] [Indexed: 04/13/2023]
Abstract
To evaluate the ameliorating effect of Modafinil on neuroinflammation, behavioral, and histopathological alterations in rats induced by propionic acid (PPA). Thirty male Wistar rats were used in the study, divided into 3 groups of ten subjects. One group served as a control, the subjects in the other two were given 250 mg/kg/day of PPA by intraperitoneal injection over the course of 5 days to induce autism. The experimental design was as follows: Group 1: Normal control (orally-fed control, n = 10); Group 2 (PPA + saline, n = 10): PPA and 1 ml/kg/day % 0.9 NaCl saline via oral gavage; Group 3 (PPA + Modafinil, n = 10) PPA and 30 mg/kg/day Modafinil (Modiodal tablets 100 mg, Cephalon) via oral gavage. All of the groups were investigated for behavioral, biochemical, and histological abnormality. Autism-like behaviors were reduced significantly in the rats treated with PPA. TNF-α, Nerve Growth Factor (NGF), IL-17, IL-2, and NF-KB levels as well as MDA levels and lactate were significantly higher in those treated with PPA compared to the control group. Using immunohistochemical methods, the number of neurons and GFAP immunoreactivity was significantly altered in PPA-treated rats compared to the control. Using Magnetic Resonance Spectroscopy (MRS), we found that lactate levels were significantly higher in the PPA-treated rats, while creatinine levels were significantly decreased. In the rats administered with Modafinil, behavior, neuroinflammation, and histopathological changes brought about by PPA were significantly reversed. Our results demonstrate the potential role of Modafinil in ameliorating PPA-induced neuroinflammation in rats.
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Affiliation(s)
- Erman Bagcioglu
- Department of Clinical Psychology, Ruhr University, Bochum, Germany.
| | - Volkan Solmaz
- Department of Neurophysiology, Cologne University, Cologne, Germany
| | - Oytun Erbas
- Department of Physiology, Istanbul Bilim University School of Medicine, Istanbul, Turkey
| | - Bahattin Özkul
- Department of Radiology, Istanbul Atlas University, Istanbul, Turkey
| | - Burak Çakar
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - İbrahim Söğüt
- Department of Biochemistry, Demiroğlu Bilim University, Istanbul, Turkey
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Jeon H, Kim YJ, Hwang SK, Seo J, Mun JY. Restoration of Cathepsin D Level via L-Serine Attenuates PPA-Induced Lysosomal Dysfunction in Neuronal Cells. Int J Mol Sci 2022; 23:ijms231810613. [PMID: 36142514 PMCID: PMC9504002 DOI: 10.3390/ijms231810613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 11/21/2022] Open
Abstract
L-serine is a non-essential amino acid endogenously produced by astrocytes and is abundant in human diets. Beneficial roles of the metabolic products from L-serine in various conditions in the brain including neuronal development have been reported. Through several preclinical studies, L-serine treatment was also shown to offer beneficial therapeutic effects for brain damage such as ischemic stroke, amyotrophic lateral sclerosis, and Parkinson’s disease. Despite evidence for the value of L-serine in the clinic, however, its beneficial effects on the propionic acid (PPA)-induced neuronal toxicity and underlying mechanisms of L-serine-mediated neuroprotection are unknown. In this study, we observed that PPA-induced acidic stress induces abnormal lipid accumulation and functional defects in lysosomes of hippocampal neurons. L-serine treatment was able to rescue the structure and function of lysosomes in PPA-treated hippocampal neuronal cells. We further identified that L-serine suppressed the formation of lipid droplets and abnormal lipid membrane accumulations inside the lysosomes in PPA-treated hippocampal neuronal cells. Taken together, these findings indicate that L-serine can be utilized as a neuroprotective agent for the functionality of lysosomes through restoration of cathepsin D in disease conditions.
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Affiliation(s)
- Hyunbum Jeon
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Yeo Jin Kim
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea
| | - Su-Kyeong Hwang
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Astrogen Inc., 440, Hyeoksin-daero, Dong-gu, Daegu 41072, Korea
| | - Jinsoo Seo
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Ji Young Mun
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea
- Correspondence:
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Lee JH, Jang EH, Kim SA. Brain Region and Sex-specific Changes in Mitochondrial Biogenesis Induced by Acute Trimethyltin Exposure. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2022; 20:474-481. [PMID: 35879031 PMCID: PMC9329116 DOI: 10.9758/cpn.2022.20.3.474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 11/25/2022]
Abstract
Objective In this study, we investigated sex- and region-specific effects of acute trimethyltin (TMT) exposure on mitochondrial biogenesis. Methods We treated TMT to primary neuronal cultures and 4-week-old male and female mice. We measured the mitochondrial DNA copy numbers using the quantitative polymerase chain reaction method. We also measured mitochondrial biogenesis related genes (sirtuin-1, estrogen-related receptor alpha, cytochrome C oxidase subunit IV) by western blotting. Results The mitochondrial DNA copy number increased in the primary hippocampal neuron; however, it decreased in the primary cortical neuron. The mitochondrial copy number increased in the hippocampus and decreased in the cortex in the TMT treated female mice, though the mitochondrial copy number increased in both cortex and hippocampus in the TMT treated male mice. TMT treatment increased sirtuin-1 expression in the male hippocampus but did not in the female brain. In the female brain, estrogen-related receptor alpha expression decreased in the cortex though there is no significant change in the male brain. The protein level of mitochondrial protein, cytochrome C oxidase subunit IV, increased in both cortex and hippocampus after TMT injection in male mice brain, but not in female mice brain. Conclusion Our data suggest that acute TMT exposure induces distinct sex-specific metabolic characteristics in the brain before significant sexual maturation.
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Affiliation(s)
- Jung Ho Lee
- Department of Pharmacology, School of Medicine, Eulji University, Daejeon, Korea
| | - Eun Hye Jang
- Department of Pharmacology, School of Medicine, Eulji University, Daejeon, Korea
| | - Soon Ae Kim
- Department of Pharmacology, School of Medicine, Eulji University, Daejeon, Korea
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Jung M, Choi H, Kim J, Mun JY. Correlative Light and Transmission Electron Microscopy Showed Details of Mitophagy by Mitochondria Quality Control in Propionic Acid Treated SH-SY5Y Cell. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4336. [PMID: 33003589 PMCID: PMC7579125 DOI: 10.3390/ma13194336] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 01/21/2023]
Abstract
Propionic acid is a metabolite of the microbiome and can be transported to the brain. Previous data show that propionic acid changes mitochondrial biogenesis in SH-SY5Y cells and induces abnormal autophagy in primary hippocampal neurons. Maintaining mitochondrial function is key to homeostasis in neuronal cells, and mitophagy is the selective autophagy involved in regulating mitochondrial quality. Monitoring mitophagy though light microscopy or conventional transmission electron microscopy separately is insufficient because phases of mitophagy, including autophagosome and autolysosome in nano-resolution, are critical for studies of function. Therefore, we used correlative light and electron microscopy to investigate mitochondrial quality in SH-SY5Y cells after propionic acid treatment to use the advantages of both techniques. We showed, with this approach, that propionic acid induces mitophagy associated with mitochondrial quality.
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Affiliation(s)
- Minkyo Jung
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (M.J.); (H.C.)
| | - Hyosun Choi
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (M.J.); (H.C.)
- BK21 Plus Program, Department of Senior Healthcare, Graduate School, Eulji University, Daejeon 34824, Korea
| | - Jaekwang Kim
- Dementia Research Group, Korea Brain Research Institute, Daegu 41062, Korea;
| | - Ji Young Mun
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (M.J.); (H.C.)
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