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Liu L, Fang L, Duan B, Wang Y, Cui Z, Yang L, Wu D. Multi-Hit White Matter Injury-Induced Cerebral Palsy Model Established by Perinatal Lipopolysaccharide Injection. Front Pediatr 2022; 10:867410. [PMID: 35733809 PMCID: PMC9207278 DOI: 10.3389/fped.2022.867410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Cerebral palsy (CP) is a group of permanent, but not unchanging, disorders of movement and/or posture and motor function. Since the major brain injury associated with CP is white matter injury (WMI), especially, in preterm infants, we established a "multi-hit" rat model to mimic human WMI in symptomatology and at a histological level. In our WMI model, pups suffering from limb paresis, incoordination, and direction difficulties fit the performance of CP. Histologically, they present with fewer neural cells, inordinate fibers, and more inflammatory cell infiltration, compared to the control group. From the electron microscopy results, we spotted neuronal apoptosis, glial activation, and myelination delay. Besides, the abundant appearance of IBA1-labeled microglia also implied that microglia play a role during neuronal cell injury. After activation, microglia shift between the pro-inflammatory M1 type and the anti-inflammatory M2 type. The results showed that LPS/infection stimulated IBA1 + (marked activated microglia) expression, downregulated CD11c + (marked M1 phenotype), and upregulated Arg 1 + (marked M2 phenotype) protein expression. It indicated an M1 to M2 transition after multiple infections. In summary, we established a "multi-hit" WMI-induced CP rat model and demonstrated that the microglial activation correlates tightly with CP formation, which may become a potential target for future studies.
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Affiliation(s)
- Le Liu
- Department of Pediatrics, Pediatric Neurorehabilitation Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Department of Pediatrics, Maternal and Child Health Hospital, The Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Liwei Fang
- Department of Pediatrics, Pediatric Neurorehabilitation Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Boyang Duan
- The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yue Wang
- Department of Pediatrics, Pediatric Neurorehabilitation Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zhenzhen Cui
- Department of Pediatrics, Pediatric Neurorehabilitation Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Li Yang
- Department of Pediatrics, Pediatric Neurorehabilitation Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - De Wu
- Department of Pediatrics, Pediatric Neurorehabilitation Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Menezes CEDS, McIntyre RS, Chaves Filho AJM, Vasconcelos SMM, de Sousa FCF, Quevedo J, Hyphantis TN, Carvalho AF, Macêdo D. The effect of paroxetine, venlafaxine and bupropion administration alone and combined on spatial and aversive memory performance in rats. Pharmacol Rep 2018; 70:1173-1179. [PMID: 30321807 DOI: 10.1016/j.pharep.2018.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 06/07/2018] [Accepted: 07/20/2018] [Indexed: 01/03/2023]
Abstract
BACKGROUND The use of antidepressants in combination is common practice following non-response to single antidepressant agents. Nevertheless, the scientific literature lacks preclinical studies regarding the combined administration of antidepressants across multiple behavioral measures including, but not limited to, cognition. Hence, we aimed to determine the effects of paroxetine (PAR), venlafaxine (VEN) and bupropion (BUP) alone or combined (PAR+BUP or VEN+BUP) on spatial and affective memory tasks to advance the knowledge about the combined use of antidepressants in cognition. METHODS Adult rats received daily injections (15 days) of PAR (20mg/kg, ip), VEN (20mg/kg, ip), BUP (20mg/kg, ip) alone or combined and were submitted to behavioral measures of spatial memory (radial-arm maze - RAM), aversive memory (passive avoidance - PA), open field (OF) and forced swimming (FST) tests. RESULTS In the RAM, VEN or VEN+BUP impaired learning, while short-term memory (STM) was impaired by PAR, BUP and their combination. VEN+BUP improved STM as compared to BUP. PAR impaired long-term memory (LTM). VEN or BUP alone impaired STM and long-term fear memory, whilst PAR+BUP or VEN+BUP did not induce significant alterations. CONCLUSIONS The effects of VEN, PAR or BUP alone and in combination on measures of memory are variable and vary as a function of the pharmacodynamics profile of each drug as well as the specific memory paradigm.
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Affiliation(s)
| | - Roger S McIntyre
- Department of Psychiatry, Department of Pharmacology and Toxicology, Mood Disorders Psychopharmacology Unit, University of Toronto, Toronto, ON, Canada
| | | | | | | | - João Quevedo
- Laboratory of Neurosciences, University of Southern Santa Catarina, Criciúma, SC, Brazil; Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA; Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA; Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA; Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | | | - André F Carvalho
- Department of Psychiatry, Department of Pharmacology and Toxicology, Mood Disorders Psychopharmacology Unit, University of Toronto, Toronto, ON, Canada; Centre for Addiction & Mental Health (CAMH), University of Toronto, Toronto, ON, Canada
| | - Danielle Macêdo
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; National Institute for Translational Medicine (INCT-TM, CNPq), Ribeirão Preto, Brazil.
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Zhou CL, Zhao L, Shi HY, Liu JW, Shi JW, Kan BH, Li Z, Yu JC, Han JX. Combined acupuncture and HuangDiSan treatment affects behavior and synaptophysin levels in the hippocampus of senescence-accelerated mouse prone 8 after neural stem cell transplantation. Neural Regen Res 2018; 13:541-548. [PMID: 29623942 PMCID: PMC5900520 DOI: 10.4103/1673-5374.228760] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Sanjiao acupuncture and HuangDiSan can promote the proliferation, migration and differentiation of exogenous neural stem cells in senescence-accelerated mouse prone 8 (SAMP8) mice and can improve learning and memory impairment and behavioral function in dementia-model mice. Thus, we sought to determine whether Sanjiao acupuncture and HuangDiSan can elevate the effect of neural stem cell transplantation in Alzheimer’s disease model mice. Sanjiao acupuncture was used to stimulate Danzhong (CV17), Zhongwan (CV12), Qihai (CV6), bilateral Xuehai (SP10) and bilateral Zusanli (ST36) 15 days before and after implantation of neural stem cells (5 × 105) into the hippocampal dentate gyrus of SAMP8 mice. Simultaneously, 0.2 mL HuangDiSan, containing Rehmannia Root and Chinese Angelica, was intragastrically administered. Our results demonstrated that compared with mice undergoing neural stem cell transplantation alone, learning ability was significantly improved and synaptophysin mRNA and protein levels were greatly increased in the hippocampus of mice undergoing both Sanjiao acupuncture and intragastric administration of HuangDiSan. We conclude that the combination of Sanjiao acupuncture and HuangDiSan can effectively improve dementia symptoms in mice, and the mechanism of this action might be related to the regulation of synaptophysin expression.
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Affiliation(s)
| | - Lan Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Tianjin Key Laboratory of Acupuncture and Moxibustion, Tianjin, China
| | - Hui-Yan Shi
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Tianjin Key Laboratory of Acupuncture and Moxibustion, Tianjin, China
| | - Jian-Wei Liu
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jiang-Wei Shi
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo-Hong Kan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Tianjin Key Laboratory of Acupuncture and Moxibustion, Tianjin, China
| | - Zhen Li
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Tianjin Key Laboratory of Acupuncture and Moxibustion, Tianjin, China
| | - Jian-Chun Yu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jing-Xian Han
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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