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Ningning Y, Ying X, Xiang L, Yue S, Zhongda W, Ruoyu J, Hanwen S, Weiwei T, Yafeng Z, Junjie M, Xiaolan C. Danggui-Shaoyao San alleviates cognitive impairment via enhancing HIF-1α/EPO axis in vascular dementia rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 331:118306. [PMID: 38723920 DOI: 10.1016/j.jep.2024.118306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 05/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Invigorating blood circulation to remove blood stasis is a primary strategy in TCM for treating vascular dementia (VaD). Danggui-Shaoyao San (DSS), as a traditional prescription for neuroprotective activity, has been proved to be effective in VaD treatment. However, its precise molecular mechanisms remain incompletely understood. AIM OF THE STUDY The specific mechanism underlying the therapeutic effects of DSS on VaD was explored by employing network pharmacology as well as in vivo and in viro experiment validation. MATERIALS AND METHODS We downloaded components of DSS from the BATMAN-TCM database for target prediction. The intersection between the components of DSS and targets, PPI network, as well as GO and KEGG enrichment analysis were then performed. Subsequently, the potential mechanism of DSS predicted by network pharmacology was assessed and validated through VaD rat model induced by 2VO operation and CoCl2-treated PC12 cells. Briefly, the DSS extract were first quantified by HPLC. Secondly, the effect of DSS on VaD was studied using MWM test, HE staining and TUNEL assay. Finally, the molecular mechanism of DSS against VaD was validated by Western blot and RT-QPCR experiments. RESULTS Through network analysis, 137 active ingredients were obtained from DSS, and 67 potential targets associated with DSS and VaD were identified. GO and KEGG analysis indicated that the action of DSS on VaD primarily involves hypoxic terms and HIF-1 pathway. In vivo validation, cognitive impairment and neuron mortality were markedly ameliorated by DSS. Additionally, DSS significantly reduced the expression of proteins related to synaptic plasticity and neuron apoptosis including PSD-95, SYP, Caspase-3 and BCL-2. Mechanistically, we confirmed DSS positively modulated the expression of HIF-1α and its downstream proteins including EPO, p-EPOR, STAT5, EPOR, and AKT1 in the hippocampus of VaD rats as well as CoCl2-induced PC12 cells. HIF-1 inhibitor YC-1 significantly diminished the protection of DSS on CoCl2-induced PC12 cell damage, with decreased HIF-1α, EPO, EPOR expression. CONCLUSION Our results initially demonstrated DSS could exert neuroprotective effects in VaD. The pharmacological mechanism of DSS may be related to its positive regulation on HIF-1α/EPO pathway.
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Affiliation(s)
- Yuan Ningning
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xu Ying
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Li Xiang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Su Yue
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Wang Zhongda
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jiang Ruoyu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shi Hanwen
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Tao Weiwei
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhang Yafeng
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, 214071, China.
| | - Ma Junjie
- School of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Cheng Xiaolan
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Yan B, Liao P, Cheng F, Wang C, Zhang J, Han Z, Liu Y, Zhang L, Zhang W, Li M, Li D, Chen F, Lei P. Identification of toll-like receptor 2 as a key regulator of neuronal apoptosis in vascular dementia by bioinformatics analysis and experimental validation. Exp Gerontol 2024; 193:112464. [PMID: 38797288 DOI: 10.1016/j.exger.2024.112464] [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: 03/01/2024] [Revised: 04/03/2024] [Accepted: 05/20/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Vascular dementia (VaD), the second most prevalent type of dementia, lacks a well-defined cause and effective treatment. Our objective was to utilize bioinformatics analysis to discover the fundamental disease-causing genes and pathological mechanisms in individuals diagnosed with VaD. METHODS To identify potential pathogenic genes associated with VaD, we conducted weighted gene co-expression network analysis (WGCNA), differential expression analysis, and protein-protein interaction (PPI) analysis. The exploration of potential biological mechanisms involved the utilization of Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) analysis. Moreover, a bilateral common carotid artery stenosis (BCAS) mouse model of VaD was established, and the expression of the hub gene, its relationship with cognitive function and its potential pathogenic mechanism were verified by cognitive behavior tests, cerebral blood flow measurement, Western blotting, and immunofluorescence experiments. RESULTS This study identified 293 DEGs from the brain cortex of VaD patients and healthy controls, among these genes, the Toll-like receptor 2 (TLR2) gene was identified as hub gene, and it was associated with the apoptosis-related pathway PI3K/AKT.The BCAS model demonstrated that the use of TLR2 inhibitors greatly enhanced the cognitive function of the mice (p < 0.05). Additionally, there was a notable decrease in the number of apoptotic cells in the brain cortex of the mice (p < 0.01). Moreover, significant alterations in the levels of proteins related to the PI3K/AKT pathway and cleaved-caspase3 proteins were detected (p < 0.05). CONCLUSIONS TLR2 plays a role in the pathophysiology of VaD by enhancing the neuronal apoptotic pathway, suggesting it could be a promising therapeutic target.
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Affiliation(s)
- Bo Yan
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Pan Liao
- Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China; School of Medicine, Nankai University, Tianjin 300192, China
| | - Fangyuan Cheng
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Conglin Wang
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Jieying Zhang
- Department of Pharmacology and Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Center for Cardiovascular Diseases, Tianjin Medical University, 300052, China
| | - Zhaoli Han
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Yaru Liu
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Lan Zhang
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Wei Zhang
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Meimei Li
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Dai Li
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China
| | - Fanglian Chen
- Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China..
| | - Ping Lei
- Department of Geriatrics, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin 300052, China; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, People's Republic of China; Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin 300462, China.
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Wertman E. Essential New Complexity-Based Themes for Patient-Centered Diagnosis and Treatment of Dementia and Predementia in Older People: Multimorbidity and Multilevel Phenomenology. J Clin Med 2024; 13:4202. [PMID: 39064242 PMCID: PMC11277671 DOI: 10.3390/jcm13144202] [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: 06/10/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/28/2024] Open
Abstract
Dementia is a highly prevalent condition with devastating clinical and socioeconomic sequela. It is expected to triple in prevalence by 2050. No treatment is currently known to be effective. Symptomatic late-onset dementia and predementia (SLODP) affects 95% of patients with the syndrome. In contrast to trials of pharmacological prevention, no treatment is suggested to remediate or cure these symptomatic patients. SLODP but not young onset dementia is intensely associated with multimorbidity (MUM), including brain-perturbating conditions (BPCs). Recent studies showed that MUM/BPCs have a major role in the pathogenesis of SLODP. Fortunately, most MUM/BPCs are medically treatable, and thus, their treatment may modify and improve SLODP, relieving suffering and reducing its clinical and socioeconomic threats. Regrettably, the complex system features of SLODP impede the diagnosis and treatment of the potentially remediable conditions (PRCs) associated with them, mainly due to failure of pattern recognition and a flawed diagnostic workup. We suggest incorporating two SLODP-specific conceptual themes into the diagnostic workup: MUM/BPC and multilevel phenomenological themes. By doing so, we were able to improve the diagnostic accuracy of SLODP components and optimize detecting and favorably treating PRCs. These revolutionary concepts and their implications for remediability and other parameters are discussed in the paper.
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Affiliation(s)
- Eli Wertman
- Department of Neurology, Hadassah University Hospital, The Hebrew University, Jerusalem 9190500, Israel;
- Section of Neuropsychology, Department of Psychology, The Hebrew University, Jerusalem 9190500, Israel
- Or’ad: Organization for Cognitive and Behavioral Changes in the Elderly, Jerusalem 9458118, Israel
- Merhav Neuropsychogeriatric Clinics, Nehalim 4995000, Israel
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Fu Z, Wang X, Fan Y, Shang D, Zhang J, Xiao T, Guo J, Wang Y, Wang Z, Zhang Z, Jia Q, Zhu J, Jahromi AB, Meng Y, Gao N, Chang J, Gao Y. Brozopine ameliorates cognitive impairment via upregulating Nrf2, antioxidation and anti-inflammation activities. Front Pharmacol 2024; 15:1428455. [PMID: 39050756 PMCID: PMC11266293 DOI: 10.3389/fphar.2024.1428455] [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: 05/06/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024] Open
Abstract
Oxidative stress and inflammation are crucial factors contributing to the occurrence and development of vascular dementia (VD). In a previous study, we demonstrated that brozopine (BZP) is an anti-ischemic drug. In this study, a model of VD in rats with modified permanent bilateral common carotid artery occlusion (2-VO) was established in vivo, a model of cellular excitotoxicity/oxidative stress was established via L-glutamate-induced PC12 cell injury, a model of neuroinflammation was established in LPS-induced BV2 cells in vitro, and the ameliorative effect of BZP on cognitive impairment was assessed. BZP treatment improved memory deficit in VD rats through inhibiting Ca2+overload and the levels of oxidative stress, ferroptosis, and inflammatory markers (IL-1β, IL-6, and COX-2) in different brain regions. Additionally, we found that the levels of inflammatory markers in the plasma were also reduced in the VD rats. BZP was further found to have antioxidative stress, antiferroptosis (ferroptosis markers: GPX4, P53, and ACSL4), and antineuroinflammatory effects in PC12 and BV2 cells. Its mechanisms of action were found to be related to the activation of the Nrf2/TLR4/NF-κB pathway; the protective effect of BZP was partially inhibited after using Nrf2-specific inhibitors. Thus, BZP has therapeutic properties for the potential mitigation of cognitive impairment.
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Affiliation(s)
- Zhenzhen Fu
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Xuening Wang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Yanan Fan
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Dong Shang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Jiahua Zhang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Tingting Xiao
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Jiajun Guo
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Yi Wang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Zhiyu Wang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Zixin Zhang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Qingran Jia
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Jinpeng Zhu
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Alireza Behrouznam Jahromi
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Yinuo Meng
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Na Gao
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
| | - Junbiao Chang
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
| | - Yuan Gao
- Department of Pharmacology, School of Basic Medicine, Zhengzhou University, Zhengzhou, China
- School of Basic Medicine, Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, China
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Fan H, Feng J, Ding Y, Gu P, Wang L, Chen X, Geng X. Performance of antisaccades in patients with cerebral small vessel disease accompanied by white matter hyperintensities. Neurol Res 2024:1-8. [PMID: 38888450 DOI: 10.1080/01616412.2024.2367934] [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: 05/03/2023] [Accepted: 06/09/2024] [Indexed: 06/20/2024]
Abstract
OBJECTIVES The antisaccades (AS) task is considered a reliable indicator of inhibitory control of eye movements in humans. Achieving good AS performance requires efficient cognitive processes that are sensitive to changes in brain structure. White matter hyperintensities (WMH) can cause subcortical-cortical dysconnectivity, affecting diverse cognitive domains. Thus, the AS task was investigated in patients with WMH in cerebral small vessel disease (CSVD). METHODS In this retrospective study, 75 participants with WMH, determined by neuroimaging standards for CSVD research, were admitted to the Department of Neurology of Beijing Luhe Hospital, Capital Medical University from January 2021 to December 2022. All subjects underwent the AS task, Montreal Cognitive Assessment (MoCA), Mini-Mental State Examination (MMSE), and 3.0T brain MRI. Additionally, 61 healthy subjects were recruited to characterize WMH profiles. RESULTS Compared to the control group, patients with WMH had a significantly increased AS error rate (49.81%, p = 0.001) and lower gain (76.00%, p = 0.042). The AS error rate was significantly higher in patients with WMH in the frontal lobe than in those without WMH (p = 0.004). After adjusting for confounders (age), a positive correlation was found between the AS error rate and MoCA scores for patients with WMH (coefficient = 0.262, p = 0.024). CONCLUSIONS Patients with WMH due to CSVD exhibited abnormal AS performances, particularly in the frontal lobe. The eye movement paradigms, the new diagnostic forms in neurology, can be utilized to investigate the distributed cortical and subcortical systems involved in cognitive control processes, offering simple, well-tolerated and highly sensitive advantages over traditional measures.
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Affiliation(s)
- Huimin Fan
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Jing Feng
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Pan Gu
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Liying Wang
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaomeng Chen
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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Guo H, Li H, Jia Z, Ma S, Zhang J. Edaravone dexborneol attenuates cognitive impairment in a rat model of vascular dementia by inhibiting hippocampal oxidative stress and inflammatory responses and modulating the NMDA receptor signaling pathway. Brain Res 2024; 1833:148917. [PMID: 38582415 DOI: 10.1016/j.brainres.2024.148917] [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: 02/05/2024] [Revised: 03/31/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Exploring the intricate pathogenesis of Vascular Dementia (VD), there is a noted absence of potent treatments available in the current medical landscape. A new brain-protective medication developed in China, Edaravone dexboeol (EDB), has shown promise due to its antioxidant and anti-inflammatory properties, albeit with a need for additional research to elucidate its role and mechanisms in VD contexts. In a research setup, a VD model was established utilizing Sprague-Dawley (SD) rats, subjected to permanent bilateral typical carotid artery occlusion (2VO). Behavioral assessment of the rats was conducted using the Bederson test and pole climbing test, while cognitive abilities, particularly learning and memory, were evaluated via the novel object recognition test and the Morris water maze test. Ensuing, the levels of malondialdehyde (MDA), superoxide dismutase (SOD), IL-1β, IL-6, IL-4, and tumor necrosis factor-α (TNF-α) were determined through Enzyme-Linked Immunosorbent Assay (ELISA). Synaptic plasticity-related proteins, synaptophysin (SYP), post-synaptic density protein 95 (PSD-95), and N-methyl-D-aspartate (NMDA) receptor proteins (NR1, NR2A, NR2B) were investigated via Western blotting technique. The findings imply that EDB has the potential to ameliorate cognitive deficiencies, attributed to VD, by mitigating oxidative stress, dampening inflammatory responses, and modulating the NMDA receptor signaling pathway, furnishing new perspectives into EDB's mechanism and proposing potential avenues for therapeutic strategies in managing VD.
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Affiliation(s)
- Hui Guo
- Department of Neurology, First Hospital, Shanxi Medical University, Taiyuan,China; First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Haodong Li
- Department of Neurology, First Hospital, Shanxi Medical University, Taiyuan,China; First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Zhisheng Jia
- Department of Neurology, First Hospital, Shanxi Medical University, Taiyuan,China; First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Shuyu Ma
- Department of Neurology, First Hospital, Shanxi Medical University, Taiyuan,China; First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Jin Zhang
- Department of Neurology, First Hospital, Shanxi Medical University, Taiyuan,China.
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Gangemi A, Fabio RA, Suriano R, De Luca R, Marra A, Tomo M, Quartarone A, Calabrò RS. Does Transcranial Direct Current Stimulation Affect Potential P300-Related Events in Vascular Dementia? Considerations from a Pilot Study. Biomedicines 2024; 12:1290. [PMID: 38927497 PMCID: PMC11200963 DOI: 10.3390/biomedicines12061290] [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: 04/26/2024] [Revised: 05/23/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Vascular dementia, the second most common type of dementia, currently lacks a definitive cure. In the pursuit of therapies aimed at slowing its progression and alleviating symptoms, transcranial direct current stimulation (tDCS) emerges as a promising approach, characterized by its non-invasive nature and the ability to promote brain plasticity. In this study, the primary objective was to investigate the effects of a two-week cycle of tDCS on the dorsolateral prefrontal cortex (DLPFC) and neurophysiological functioning in thirty patients diagnosed with vascular dementia. Each participant was assigned to one of two groups: the experimental group, which received anodal tDCS to stimulate DPCFL, and the control group, which received sham tDCS. Neurophysiological functions were assessed before and after tDCS using P300 event-related potentials (ERPs), while neuropsychological function was evaluated through a Mini-Mental State Examination (MMSE). The results showed a reduction in P300 latency, indicating a faster cognitive process; an increase in P300 amplitude, suggesting a stronger neural response to cognitive stimuli; and a significant improvement in MMSE scores compared to the control group, indicating an overall enhancement in cognitive functions. These findings suggest that tDCS could represent a promising therapeutic option for improving both neurophysiological and cognitive aspects in patients with vascular dementia.
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Affiliation(s)
- Antonio Gangemi
- IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113, Cda Casazza, 98124 Messina, Italy; (A.G.); (R.D.L.); (A.M.); (A.Q.); (R.S.C.)
| | - Rosa Angela Fabio
- Department of Cognitive, Psychological and Pedagogical Sciences and Cultural Studies, University of Messina, 98100 Messina, Italy;
| | - Rossella Suriano
- Department of Cognitive, Psychological and Pedagogical Sciences and Cultural Studies, University of Messina, 98100 Messina, Italy;
| | - Rosaria De Luca
- IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113, Cda Casazza, 98124 Messina, Italy; (A.G.); (R.D.L.); (A.M.); (A.Q.); (R.S.C.)
| | - Angela Marra
- IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113, Cda Casazza, 98124 Messina, Italy; (A.G.); (R.D.L.); (A.M.); (A.Q.); (R.S.C.)
| | - Mariangela Tomo
- Grande Ospedale Metropolitano “Bianchi-Melacrino-Morelli”, 89124 Reggio Calabria, Italy;
| | - Angelo Quartarone
- IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113, Cda Casazza, 98124 Messina, Italy; (A.G.); (R.D.L.); (A.M.); (A.Q.); (R.S.C.)
| | - Rocco Salvatore Calabrò
- IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113, Cda Casazza, 98124 Messina, Italy; (A.G.); (R.D.L.); (A.M.); (A.Q.); (R.S.C.)
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Lin S, Landon B, Zhang H, Jin K. Pericyte Dysfunction Contributes to Vascular Cognitive Impairment Induced by Chronic Cerebral Hypoperfusion in Rats. Aging Dis 2024; 15:1357-1372. [PMID: 37611900 PMCID: PMC11081149 DOI: 10.14336/ad.2023.0821-1] [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: 07/03/2023] [Accepted: 08/21/2023] [Indexed: 08/25/2023] Open
Abstract
Vascular cognitive impairment (VCI) encompasses cognitive disorders associated with cerebrovascular disease, often manifesting as white matter lesions (WMLs), irrespective of precise triggers. The integrity of white matter is essential for neural communication and cognitive function maintenance. Persistent cerebral hypoperfusion-induced WMLs are now acknowledged as a key driver of VCI and dementia, though their exact formation mechanism remains unclear. Recent studies link pericyte dysfunction to diverse brain disorders like Alzheimer disease. However, the exact pathological connection between pericyte dysfunction and cognitive impairment in VCI remains unexplored. In this study, we aimed to examine whether pericyte dysfunction could impact WMLs and cognitive impairment in a rat VCI model. Using a rat model of chronic cerebral hypoperfusion-induced VCI through two-vessel occlusion (2VO), we verified that 2VO induced both WMLs and cognitive impairment. Notably, the number of pericytes in the brain was significantly altered after 2VO. Furthermore, we observed significantly increased capillary constrictions at pericyte bodies in the brains of 2VO-induced rats compared to sham-operated rats, accompanied by reduced cerebral blood flow (CBF). To tackle this issue, we administered CGS21680, a specific adenosine A2A subtype receptor agonist, intranasally twice a day for 7 days. We found that rats treated with CGS21680 exhibited a significant increase in CBF at 7 and 14 days after 2VO, compared to the vehicle group. Moreover, capillary lumens beneath pericytes also increased after the CGS21680 treatment. Importantly, the treatment led to substantial improvements in WMLs and cognitive impairment compared to the vehicle group. Our findings suggest a critical role of pericyte dysfunction in WMLs and cognitive impairment within the rat VCI model. This insight contributes to our understanding of pathogenesis and offers prospects for targeted intervention in VCI.
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Affiliation(s)
- Siyang Lin
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
| | - Benjamin Landon
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
| | - Hongxia Zhang
- Department of Neurological Surgery, University of California, San Francisco, CA 94158, USA.
| | - Kunlin Jin
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
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Xu Y, Tang L, Zhou C, Sun L, Hu Y, Zhang Z, Xia S, Bao X, Yang H, Xu Y. Inhibition of ADORA3 promotes microglial phagocytosis and alleviates chronic ischemic white matter injury. CNS Neurosci Ther 2024; 30:e14742. [PMID: 38715283 PMCID: PMC11076989 DOI: 10.1111/cns.14742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 03/31/2024] [Accepted: 04/13/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Adenosine A3 receptor (ADORA3) belongs to the adenosine receptor families and the role of ADORA3 in vascular dementia (VaD) is largely unexplored. The present study sought to determine the therapeutic role of ADORA3 antagonist in a mouse model of VaD. METHODS The GSE122063 dataset was selected to screen the differential expression genes and pathways between VaD patients and controls. A mouse model of bilateral carotid artery stenosis (BCAS) was established. The cognitive functions were examined by the novel object recognition test, Y maze test, and fear of conditioning test. The white matter injury (WMI) was examined by 9.4 T MRI, western blot, and immunofluorescence staining. The mechanisms of ADORA3-regulated phagocytosis by microglia were examined using qPCR, western blot, dual immunofluorescence staining, and flow cytometry. RESULTS The expression of ADORA3 was elevated in brain tissues of VaD patients and ADORA3 was indicated as a key gene for VaD in the GSE122063. In BCAS mice, the expression of ADORA3 was predominantly elevated in microglia in the corpus callosum. ADORA3 antagonist promotes microglial phagocytosis to myelin debris by facilitating cAMP/PKA/p-CREB pathway and thereby ameliorates WMI and cognitive impairment in BCAS mice. The therapeutic effect of ADORA3 antagonist was partially reversed by the inhibition of the cAMP/PKA pathway. CONCLUSIONS ADORA3 antagonist alleviates chronic ischemic WMI by modulating myelin clearance of microglia, which may be a potential therapeutic target for the treatment of VaD.
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Affiliation(s)
- Yuhao Xu
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Limoran Tang
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Chao Zhou
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Liang Sun
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Yujie Hu
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Zhi Zhang
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Shengnan Xia
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Xinyu Bao
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Haiyan Yang
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
| | - Yun Xu
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical SchoolNanjing UniversityNanjingChina
- State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical DiseasesNanjing UniversityNanjingChina
- Jiangsu Key Laboratory for Molecular MedicineMedical School of Nanjing UniversityNanjingChina
- Nanjing Neurology Clinical Medical CenterNanjingChina
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10
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Ampil ER, Ong PA, Krespi Y, Yang YH. A review of SaiLuoTong (MLC-SLT) development in vascular cognitive impairment and dementia. Front Pharmacol 2024; 15:1343820. [PMID: 38751782 PMCID: PMC11094335 DOI: 10.3389/fphar.2024.1343820] [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: 12/06/2023] [Accepted: 04/10/2024] [Indexed: 05/18/2024] Open
Abstract
The dementia epidemic, attributed to aging populations, represents a growing socio-economic burden. It is estimated that in 2019 about 55 million people worldwide were living with dementia. With many possible causes of dementia and the possibility of mixed dementia combining Alzheimer's disease (AD) and vascular dementia the question is whether diagnostic uncertainty exists or whether diagnostic constructs based on single etiologies are incorrect. Vascular Cognitive Impairment and Dementia (VCID) designates the extent of cognitive dysfunctions from the most benign state to that of dementia, of vascular origin. We reviewed epidemiological, pathophysiological and clinical data on VCID with a focus on VaD, as well as key data on the development of a new therapeutic solution, SaiLuoTong (MLC-SLT). From documentary research executed on different web sources (PubMed, Clintrials.gov, Z-library and Google), our initial selection for the short review of VCID and VaD was based on keywords contained in each paragraph subtitles of this article with exclusion of publications in a language other than English or published before 2010. For the review of SaiLuoTong development, there was just the language exclusion criterion. Sorted by relevance and publication date, 47 references were selected from 140 shortlisted for review. With new evidence-based classification systems, vascular cognitive impairment was proposed as umbrella term covering all forms of cognitive deficits related to vascular causes. The scope of application expanded with the VCID which includes VaD and mixed pathologies. No drugs are approved for the treatment of VaD by major Western regulatory agencies, while some traditional Chinese medicines are registered in China. VCID treatment should have a dual focus: managing the underlying cerebrovascular disease and dementia symptoms. This is the objective set for the development of the MLC-SLT, the essential data of which are reviewed in detail. To strengthen VCID and VaD research, consensus groups should attempt to consolidate scattered local research initiatives into coordinated international programs. In two VaD clinical trials, MLC-SLT improved cognitive symptoms and activities of daily living, with good safety and potential disease-modifying effect. In a placebo-controlled study in 325 patients with mild to moderate VaD and randomized according to a delayed-start design, MLC-SLT demonstrated significant improvement in memory tests and performance in executive function tasks, expanding its place in the management of VCID. At week 26, changes in VADAS-cog scores (SD) from baseline were 23.25 (0.45) for MLC-SLT 180 mg bid), 23.05 (0.45) for MLC-SLT 120 mg bid (both p < 0.0001), and 20.57 (0.45) for placebo (p = 0.15). At week 52, differences between both groups MLC-SLT and placebo were 2.67 and 2.48, respectively (p < 0.0001), without significant difference between MLC-SLT groups.
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Affiliation(s)
- Encarnita Raya Ampil
- Department of Neuroscience and Behavioral Medicine, Faculty of Medicine and Surgery, University of Santo Tomas, Santo Tomas, Philippines
- Institute for Neurosciences, St. Luke’s Medical Center-Global City Philippines, Taguig, Philippines
| | - Paulus Anam Ong
- Department of Neurology, Hasan Sadikin Hospital, Universitas Padjadjaran, Bandung, Indonesia
| | - Yakup Krespi
- Department of Neurology, İstinye University Hospital, Istanbul, Türkiye
| | - Yuan-Han Yang
- Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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11
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Gu P, Ding Y, Ruchi M, Feng J, Fan H, Fayyaz A, Geng X. Post-stroke dizziness, depression and anxiety. Neurol Res 2024; 46:466-478. [PMID: 38488118 DOI: 10.1080/01616412.2024.2328490] [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: 03/25/2023] [Accepted: 03/03/2024] [Indexed: 04/29/2024]
Abstract
OBJECTIVE Vestibular and psychiatric disorders are very closely related. Previous research shows that the discomfort and dysfunction caused by dizziness in patients can affect psychological processes, leading to anxiety and depression, and the irritation of anxiety and depression can aggravate the discomfort of dizziness. But the causal relationship between dizziness in the recovery period of stroke and Post-stroke depression (PSD) / Post-stroke anxiety (PSA) is not clear. Identifying the causal relationship between them can enable us to conduct more targeted treatments. METHODS We review the epidemiology and relationship of dizziness, anxiety, and depression, along with the related neuroanatomical basis. We also review the pathophysiology of dizziness after stroke, vestibular function of patients experiencing dizziness, and the causes and mechanisms of PSD and PSA. We attempt to explore the possible relationship between post-stroke dizziness and PSD and PSA. CONCLUSION The treatment approach for post-stroke dizziness depends on its underlying cause. If the dizziness is a result of PSD and PSA, addressing these psychological factors may alleviate the dizziness. This can be achieved through targeted treatments for PSD and PSA, such as psychotherapy, antidepressants, or anxiolytics, which could indirectly improve dizziness symptoms. Conversely, if PSA and PSD are secondary to vestibular dysfunction caused by stroke, a thorough vestibular function assessment is crucial. Identifying the extent of vestibular impairment allows for tailored interventions. These could include vestibular rehabilitation therapy and medication aimed at vestibular restoration. By improving vestibular function, secondary symptoms like anxiety and depression may also be mitigated.
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Affiliation(s)
- Pan Gu
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mangal Ruchi
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jing Feng
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Huimin Fan
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Aminan Fayyaz
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Xiaokun Geng
- Department of Neurology and the Stroke Intervention and Translational Center (SITC), Beijing Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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12
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Chen LC, Lai MC, Hong TY, Liu IM. γ-Oryzanol from Rice Bran Antagonizes Glutamate-Induced Excitotoxicity in an In Vitro Model of Differentiated HT-22 Cells. Nutrients 2024; 16:1237. [PMID: 38674927 PMCID: PMC11053564 DOI: 10.3390/nu16081237] [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: 01/15/2024] [Revised: 03/03/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The excessive activation of glutamate in the brain is a factor in the development of vascular dementia. γ-Oryzanol is a natural compound that has been shown to enhance brain function, but more research is needed to determine its potential as a treatment for vascular dementia. This study investigated if γ-oryzanol can delay or improve glutamate neurotoxicity in an in vitro model of differentiated HT-22 cells and explored its neuroprotective mechanisms. The differentiated HT-22 cells were treated with 0.1 mmol/L glutamate for 24 h then given γ-oryzanol at appropriate concentrations or memantine (10 µmol/L) for another 24 h. Glutamate produced reactive oxygen species and depleted glutathione in the cells, which reduced their viability. Mitochondrial dysfunction was also observed, including the inhibition of mitochondrial respiratory chain complex I activity, the collapse of mitochondrial transmembrane potential, and the reduction of intracellular ATP levels in the HT-22 cells. Calcium influx triggered by glutamate subsequently activated type II calcium/calmodulin-dependent protein kinase (CaMKII) in the HT-22 cells. The activation of CaMKII-ASK1-JNK MAP kinase cascade, decreased Bcl-2/Bax ratio, and increased Apaf-1-dependent caspase-9 activation were also observed due to glutamate induction, which were associated with increased DNA fragmentation. These events were attenuated when the cells were treated with γ-oryzanol (0.4 mmol/L) or the N-methyl-D-aspartate receptor antagonist memantine. The results suggest that γ-oryzanol has potent neuroprotective properties against glutamate excitotoxicity in differentiated HT-22 cells. Therefore, γ-oryzanol could be a promising candidate for the development of therapies for glutamate excitotoxicity-associated neurodegenerative diseases, including vascular dementia.
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Affiliation(s)
- Li-Chai Chen
- Department of Pharmacy and Master Program, Collage of Pharmacy and Health Care, Tajen University, Pingtung County 90741, Taiwan; (L.-C.C.); (M.-C.L.)
| | - Mei-Chou Lai
- Department of Pharmacy and Master Program, Collage of Pharmacy and Health Care, Tajen University, Pingtung County 90741, Taiwan; (L.-C.C.); (M.-C.L.)
| | - Tang-Yao Hong
- Department of Environmental Science and Occupational Safety and Hygiene, Graduate School of Environmental Management, Collage of Pharmacy and Health Care, Tajen University, Pingtung County 90741, Taiwan;
| | - I-Min Liu
- Department of Pharmacy and Master Program, Collage of Pharmacy and Health Care, Tajen University, Pingtung County 90741, Taiwan; (L.-C.C.); (M.-C.L.)
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13
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Zhang H, Yang Y, Zhang J, Huang L, Niu Y, Chen H, Liu Q, Wang R. Oligodendrocytes Play a Critical Role in White Matter Damage of Vascular Dementia. Neuroscience 2024; 538:1-10. [PMID: 37913862 DOI: 10.1016/j.neuroscience.2023.10.018] [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: 08/22/2023] [Revised: 10/17/2023] [Accepted: 10/21/2023] [Indexed: 11/03/2023]
Abstract
With the deepening of population aging, the treatment of cognitive impairment and dementia is facing increasing challenges. Vascular dementia (VaD) is a cognitive dysfunction caused by brain blood flow damage and one of the most common causes of dementia after Alzheimer's disease. White matter damage in patients with chronic ischemic dementia often occurs before cognitive impairment, and its pathological changes include leukoaraiosis, myelin destruction and oligodendrocyte death. The pathophysiology of vascular dementia is complex, involving a variety of neuronal and vascular lesions. The current proposed mechanisms include calcium overload, oxidative stress, nitrative stress and inflammatory damage, which can lead to hypoxia-ischemia and demyelination. Oligodendrocytes are the only myelinating cells in the central nervous system and closely associated with VaD. In this review article, we intend to further discuss the role of oligodendrocytes in white matter and myelin injury in VaD and the development of anti-myelin injury target drugs.
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Affiliation(s)
- Hexin Zhang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yanrong Yang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Jingjing Zhang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Li Huang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yang Niu
- Key Laboratory of Modernization of Minority Medicine, Ministry of Education, Ningxia medical University, Yinchuan 750004, Ningxia, China
| | - Hua Chen
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Qibing Liu
- Department of Pharmacy, The First Affiliated Hospital of Hainan Medical University, Haikou 570100, China
| | - Rui Wang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia, China.
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14
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Gavrilova SI, Kolykhalov IV, Mikhaylova NM, Ponomareva EV, Fedorova YB, Medvedev VE, Frolova VI, Gushanskaya EV, Litvinenko IV, Emelin AY, Lobzin VY, Kashin AV, Tanashyan MM, Kachanova MV, Knyazev AV, Gonik MI. [Multi-center open comparative randomized study of efficacy and safety of Akatinol Memantine 20 mg (single-doses) vs Akatinol Memantine 10 mg (double-doses) in patients with vascular dementia]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:69-77. [PMID: 38465812 DOI: 10.17116/jnevro202412402169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
OBJECTIVE Evaluation of the efficacy and safety of the drug Acatinol Memantine, 20 mg (once daily) in comparison with the drug Acatinol Memantine, 10 mg (twice daily) in patients with moderate to moderate severe vascular dementia. MATERIAL AND METHODS The study included 130 patients aged 50-85 years of both sexes with instrumentally and clinically confirmed vascular dementia. The patients were randomized into 2 groups. Group I consisted of 65 patients receiving Akatinol Memantine, 20 mg once daily, group II - 65 patients receiving Akatinol Memantine, 10 mg twice daily for 24 weeks. Clinical, parametric and statistical research methods were used. The Alzheimer's disease assessment scale, the cognitive subscale (ADAS-cog), the short mental Status Assessment Scale (MMSE) and the general clinical impression scale for patients condition and illness severity (CGI-C and CGI-S) and the Hamilton Depression Rating scale (HAM-D) were used. Adverse events were collected and analyzed. RESULTS At week 24, both groups showed statistically significant positive change in ADAS-cog total score: in group I the total score was 27.2±8.76 points (absolute difference from baseline 3.5 points; p<0.01), and in group II - 26.1±7.86 points (absolute difference from baseline 2.5 points; p<0.01) with no statistically significant differences between groups. Evaluation of secondary efficacy criteria (change in ADAS-cog total score at week 12 and MMSE at weeks 4, 12, and 24) also revealed statistically significant benefit in both groups compared to baseline with no significant differences between groups. Statistically significant improvement was noticed on CGI-S and CGI-C scales in both groups. Akatinol Memantine was safe and well tolerated in both groups. CONCLUSION The study showed no lesser efficacy and safety of Akatinol Memantine, 20 mg (once daily) compared to Akatinol Memantine, 10 mg (twice daily) in patients with moderate and moderately severe vascular dementia.
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Affiliation(s)
| | | | | | | | | | - V E Medvedev
- Patrice Lumumba Peoples' Friendship University of Russia, Moscow, Russia
| | - V I Frolova
- Patrice Lumumba Peoples' Friendship University of Russia, Moscow, Russia
| | - E V Gushanskaya
- Patrice Lumumba Peoples' Friendship University of Russia, Moscow, Russia
| | - I V Litvinenko
- Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation, St. Petersburg, Russia
| | - A Yu Emelin
- Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation, St. Petersburg, Russia
| | - V Yu Lobzin
- Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation, St. Petersburg, Russia
| | - A V Kashin
- Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation, St. Petersburg, Russia
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15
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Zhang T, Liu W, Bai Q, Gao S. Virtual reality technology in the rehabilitation of post-stroke cognitive impairment: an opinion article on recent findings. Front Psychol 2023; 14:1271458. [PMID: 37849482 PMCID: PMC10577207 DOI: 10.3389/fpsyg.2023.1271458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/20/2023] [Indexed: 10/19/2023] Open
Affiliation(s)
- Ting Zhang
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
- Department of Traditional Chinese Medicine, University Hospital, Zhejiang Normal University, Jinhua, China
| | - Wei Liu
- Physical Education College, Guangxi University of Science and Technology, Liuzhou, China
| | - Qingping Bai
- Physical Education College, Guangxi University of Science and Technology, Liuzhou, China
| | - Song Gao
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
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Wang X, Shi YJ, Niu TY, Chen TT, Li HB, Wu SH, Li GL. Neuroprotective effect of 20 (S) - Protopanaxadiol (PPD) attenuates NLRP3 inflammasome-mediated microglial pyroptosis in vascular dementia rats. Neurosci Lett 2023; 814:137439. [PMID: 37579868 DOI: 10.1016/j.neulet.2023.137439] [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: 06/09/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 08/16/2023]
Abstract
20(S)-protopanaxadiol (PPD), one of the ginsenosides from Panax ginseng, has been reported to improve performance with dementia. This study aimed to investigate the neuroprotective effect of PPD attenuating NLRP3 inflammasome-mediated microglial pyroptosis in vascular dementia (VD) rats induced by bilateral common carotid artery ligation (2-VO). Male Sprague-Dawley rats (SPF, 150-180 g, n = 10/group) were randomly divided into PPD (20, 10, 5 mg/kg, subcutaneous injection once per day for 3 weeks), model, and vehicle-sham group. It was found that PPD significantly reversed 2-VO-induced cognitive impairment by decreasing escape latency and spontaneous alternation and increasing the number of crossing platforms, showing memory-improving effects. PPD improved the pathological morphology of brain tissue in VD rats. PPD significantly reduced the cerebral infarction area and the activation of microglia in the cortex and hippocampal DG, CA1, and CA3 area. Moreover, PPD could attenuate NLRP3 inflammasome-mediated microglial pyroptosis, inhibit the positive expression of NLRP3, decrease IL-1β, and IL-18 levels, and increase IL-10 levels in the brain cortex. PPD also significantly alleviated the neurotoxicity by decreasing the Aβ and p-Tau in hippocampal DG, CA1, and CA3 areas. In addition, the levels of NLRP3, ASC, and IL-1β in the cortex, APP, BACE1, and p-Tau in the hippocampus were significantly reduced by PPD. These results suggested that PPD hinders microglial activation to alleviate neuroinflammation of NLRP3 inflammasome and inhibits neurotoxicity of Aβ deposition and Tau phosphorylation in 2-VO-induced VD rats.
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Affiliation(s)
- Xue Wang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Ya-Jin Shi
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Ting-Yuan Niu
- Medical College, Henan University of Chinese Medicine, Zheng-Zhou 450046, China
| | - Ting-Ting Chen
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Han-Bing Li
- Medical College, Henan University of Chinese Medicine, Zheng-Zhou 450046, China
| | - Su-Hui Wu
- Medical College, Henan University of Chinese Medicine, Zheng-Zhou 450046, China.
| | - Gen-Lin Li
- Medical College, Henan University of Chinese Medicine, Zheng-Zhou 450046, China.
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17
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Chen S, Cong R, Chen Y, Li X, Zhang X, Wang G, Pang X, Xing W, Wang Y, Xu X. Effects of Polyunsaturated Fatty Acid Serum Levels on Vascular Dementia: A Two-Sample Mendelian Randomization Study. Cerebrovasc Dis 2023; 53:261-269. [PMID: 37482052 DOI: 10.1159/000531861] [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: 04/05/2023] [Accepted: 06/27/2023] [Indexed: 07/25/2023] Open
Abstract
INTRODUCTION Several observational studies have indicated that polyunsaturated fatty acid serum levels (PUFAs) are associated with vascular dementia (VaD), but their causal relationships remain elusive. Therefore, we attempted to evaluate the causal effect of PUFAs on VaD in a two-sample Mendelian randomization (MR) analysis by using summary statistics from aggregated genome-wide association studies. METHODS The inverse-variance weighted (IVW) method was performed as the primary analysis. Sensitivity analyses (MR-Egger regression, weighted median, penalized weighted median, and MR pleiotropy residual sum and outlier methods) were also implemented to estimate the effects of potential violations of MR hypotheses. RESULTS No causality was found for PUFAs (odds ratio, 1.14; 95% confidence interval, 0.91-1.42; p = 0.25) on VaD in the IVW model. The results were consistent in sensitivity analyses. There was no notable horizontal pleiotropy or heterogeneity. CONCLUSION In this two-sample MR analysis, our findings did not support the assumption that PUFAs play causal role in the occurrence or development of VaD.
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Affiliation(s)
- Shanshan Chen
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Ruyi Cong
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Yongbo Chen
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaoliang Li
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaoyu Zhang
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Guohua Wang
- The Second Affiliated Hospital of Shandong First Medical University, Taian, China
| | - Xiuyu Pang
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Weijia Xing
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Youxin Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
- Centre for Precision Medicine, Edith Cowan University, Perth, Washington, Australia
| | - Xizhu Xu
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- The Second Affiliated Hospital of Shandong First Medical University, Taian, China
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18
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Wen Q, Hong X, He K, Liu B, Li M. Can acupuncture reverse oxidative stress and neuroinflammatory damage in animal models of vascular dementia?: A preclinical systematic review and meta-analysis. Medicine (Baltimore) 2023; 102:e33989. [PMID: 37335660 DOI: 10.1097/md.0000000000033989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND Vascular dementia is a cognitive dysfunction syndrome caused by cerebral vascular factors such as ischemic stroke and hemorrhagic stroke. The effect of acupuncture on vascular dementia models is ambiguous, and there is controversy about whether acupuncture has a placebo effect. Oxidative stress and inflammation are the most essential mechanisms in preclinical studies of vascular dementia. However, there is no meta-analysis on the mechanism of vascular dementia in animal models. It is necessary to explore the efficacy of acupuncture through Meta-analysis of preclinical studies. METHODS Three major databases, PubMed, Embase and Web of Science (including medline), were searched in English until December 2022.The quality of the including literature was assessed using SYRCLE's risk of bias tool. Review Manager 5.3 was used to statistically summarize the included studies and the statistical effect values were expressed by SMD. The outcomes included: behavioral tests (escape latency, number of crossings), pathological sections (Nissl and TUNEL staining), oxidative stress markers (ROS, MDA, SOD, GSH-PX) and neuroinflammatory factors (TNF-α, IL-1β, IL-6). RESULTS A total of 31 articles were included in this meta-analysis. The results showed that the escape latency, the contents of ROS, MDA, IL-1β, and IL-6 were decreased, and the contents of SOD and Nissl-positive neurons were increased in the acupuncture group as compared with the non-group (P < .05). Compared with the impaired group, the acupuncture group also had the above advantages (P < .05). In addition, the acupuncture group also increased the number of crossings and GSH-PX content, and decreased the expression of TUNEL-positive neurons and TNF-α (P < .05). CONCLUSIONS From behavioral tests to slices and pathological markers in animal models of vascular dementia, it can be proved that acupuncture is effective in targeting oxidative stress and neuroinflammatory damage, and acupuncture is not a placebo effect. Nevertheless, attention needs to be paid to the gap between animal experiments and clinical applications.
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Affiliation(s)
- Qin Wen
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
- Yuangang Street Community Health Service Center, Guangzhou, China
| | - Xueqin Hong
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kunze He
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Buping Liu
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Min Li
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
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Shaikh SA, Muthuraman A. Tocotrienol-Rich Fraction Ameliorates the Aluminium Chloride-Induced Neurovascular Dysfunction-Associated Vascular Dementia in Rats. Pharmaceuticals (Basel) 2023; 16:828. [PMID: 37375775 DOI: 10.3390/ph16060828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/11/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Neurovascular dysfunction leads to the second most common type of dementia, i.e., vascular dementia (VaD). Toxic metals, such as aluminium, increase the risk of neurovascular dysfunction-associated VaD. Hence, we hypothesized that a natural antioxidant derived from palm oil, i.e., tocotrienol-rich fraction (TRF), can attenuate the aluminium chloride (AlCl3)-induced VaD in rats. Rats were induced with AlCl3 (150 mg/kg) intraperitoneally for seven days followed by TRF treatment for twenty-one days. The elevated plus maze test was performed for memory assessment. Serum nitrite and plasma myeloperoxidase (MPO) levels were measured as biomarkers for endothelial dysfunction and small vessel disease determination. Thiobarbituric acid reactive substance (TBARS) was determined as brain oxidative stress marker. Platelet-derived growth factor-C (PDGF-C) expression in the hippocampus was identified using immunohistochemistry for detecting the neovascularisation process. AlCl3 showed a significant decrease in memory and serum nitrite levels, while MPO and TBARS levels were increased; moreover, PDGF-C was not expressed in the hippocampus. However, TRF treatment significantly improved memory, increased serum nitrite, decreased MPO and TBARS, and expressed PDGF-C in hippocampus. Thus, the results imply that TRF reduces brain oxidative stress, improves endothelial function, facilitates hippocampus PDGF-C expression for neovascularisation process, protects neurons, and improves memory in neurovascular dysfunction-associated VaD rats.
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Affiliation(s)
- Sohrab A Shaikh
- Pharmacology Unit, Faculty of Pharmacy, AIMST University, Semeling, Bedong 08100, Kedah, Malaysia
| | - Arunachalam Muthuraman
- Pharmacology Unit, Faculty of Pharmacy, AIMST University, Semeling, Bedong 08100, Kedah, Malaysia
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20
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Zhang Y, Guo C, Liu H, Yang L, Ren C, Li T, Liu J. Multiplex quantitation of 17 drug-derived components in human plasma after administration of a fixed herbal preparation of Sailuotong using combined online SPE-LC-MS/MS methods. JOURNAL OF ETHNOPHARMACOLOGY 2023; 302:115843. [PMID: 36265676 DOI: 10.1016/j.jep.2022.115843] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sailuotong (SLT) is a standardized herbal medicine formula made from extracts of ginseng (the dried root and rhizome of Panax ginseng C. A. Meyer), ginkgo (the leaves of Ginkgo biloba L.), and saffron (the stigma of Crocus sativus L.). It is prescribed compatibly for the treatment of vascular dementia (VaD) following the TCM principle of Qi-invigorating and Blood-activating. Ginseng is widely used as a tonic for the restoration of strength in China. Ginkgo and saffron have been traditionally used for a long time as medicines with the main effect of promoting blood circulation and removing blood stasis. AIM OF THE STUDY SLT has been proven to be a promising medicine for VaD by existing pharmacological and clinical evidence. To understand how the formula herbs and their active ingredients cooperate to produce comprehensive effects, the present study aimed to establish a highly sensitive and accurate quantitative method to reveal the plasma exposure profile of SLT in humans. MATERIAL AND METHODS Multiplex quantitation of a total of 17 SLT-derived components in human plasma was fulfilled by using online SPE for sample extractions followed by LC-MS/MS determinations. Among them, 8 ginsenoside (Rg1, Re, F1, Rf, Rb1, Rb2, Rc and Rd) were determined in ESI+ mode, and ginkgo flavonoids of quercetin, kaempferol, isorhamnetin were in ESI- mode. Improved sensitivity was achieved through optimizing the condition of sample extraction and LC separation, as well as mass parameters. 4 ginkgolides, including ginkgolide A, B, C and bilobalide, and 2 crocins of crocin-1 and its metabolite crocetin, were analyzed concurrently in negative ion mode, and their stability was ensured by a series of protective solutions. RESULTS The lower limit of quantitation was achieved to be extremely sensitive at 0.078 ng/mL for all ginsenosides, 0.033 ‒ 0.2 ng/mL for ginkgo flavonoids, 0.75 or 1.5 ng/mL for ginkgolides and 3 ng/mL for crocins. The methods were fully validated to be accurate and precise, and applicability was demonstrated by the analysis of clinical samples from 2 healthy volunteers. CONCLUSION The developed methods should be useful in further detailed clinical pharmacokinetic research for clarifying the effect mechanism of SLT and formulating its rational therapeutic regimens.
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Affiliation(s)
- Ying Zhang
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing Key Laboratory of Pharmacology of Chinese Material Medica, Beijing, 10091, China.
| | - Chunli Guo
- Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 10091, China
| | - Hongmei Liu
- Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 10091, China
| | - Lin Yang
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 10091, China
| | - Changying Ren
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing Key Laboratory of Pharmacology of Chinese Material Medica, Beijing, 10091, China
| | - Tao Li
- Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 10091, China
| | - Jianxun Liu
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing Key Laboratory of Pharmacology of Chinese Material Medica, Beijing, 10091, China.
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21
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Che P, Zhang J, Yu M, Tang P, Wang Y, Lin A, Xu J, Zhang N. Dl-3-n-butylphthalide promotes synaptic plasticity by activating the Akt/ERK signaling pathway and reduces the blood-brain barrier leakage by inhibiting the HIF-1α/MMP signaling pathway in vascular dementia model mice. CNS Neurosci Ther 2023; 29:1392-1404. [PMID: 36756709 PMCID: PMC10068471 DOI: 10.1111/cns.14112] [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: 09/21/2022] [Revised: 12/29/2022] [Accepted: 01/20/2023] [Indexed: 02/10/2023] Open
Abstract
AIMS DL-3-n-butylphthalide (NBP) exerts beneficial effects on global cognitive functions, but the underlying molecular mechanisms are still poorly understood. The present study aimed to investigate whether NBP mediates synaptic plasticity and blood-brain barrier (BBB) function, which play a pivotal role in the pathogenesis of vascular dementia (VaD), in a mouse model of bilateral common carotid artery stenosis (BCAS). METHODS NBP was administered to model mice at a dose of 80 mg/kg by gavage for 28 days after surgery. Cognitive function was evaluated by behavioral tests, and hippocampal synaptic plasticity was evaluated by in vivo electrophysiological recording. Cerebral blood flow (CBF), hippocampal volume, and white matter integrity were measured with laser speckle imaging (LSI) and MRI. In addition, BBB leakage and the expression of proteins related to the Akt/ERK and HIF-1α/MMP signaling pathways were assessed by biochemical assays. RESULTS NBP treatment alleviated cognitive impairment, hippocampal atrophy, and synaptic plasticity impairment induced by BCAS. In addition, NBP treatment increased CBF, promoted white matter integrity, and decreased BBB leakage. Regarding the molecular mechanisms, in mice with BCAS, NBP may activate the Akt/ERK signaling pathway, which upregulates the expression of synapse-associated proteins, and it may also inhibit the HIF-1α/MMP signaling pathway, thereby increasing the expression of tight junction (TJ) proteins. CONCLUSION In conclusion, our results demonstrated the therapeutic effects of NBP in improving cognitive function via a wide range of targets in mice subjected to BCAS.
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Affiliation(s)
- Ping Che
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Juan Zhang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Department of Neurology, Gucheng Hospital in Hebei Province, Hengshui, China
| | - Mingqian Yu
- School of Medicine, Nankai University, Tianjin, China
| | - Ping Tang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yanhui Wang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Aolei Lin
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing Xu
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Nan Zhang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Department of Neurology, Tianjin Medical University General Hospital Airport Site, Tianjin, China
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22
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Sun T, Tan L, Liu M, Zeng L, Zhao K, Cai Z, Sun S, Li Z, Liu R. Tilianin improves cognition in a vascular dementia rodent model by targeting miR-193b-3p/CaM- and miR-152-3p/CaMKIIα-mediated inflammatory and apoptotic pathways. Front Immunol 2023; 14:1118808. [PMID: 37153565 PMCID: PMC10155197 DOI: 10.3389/fimmu.2023.1118808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 03/24/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction Although vascular dementia (VaD) is the second most prevalent form of dementia, there is currently a lack of effective treatments. Tilianin, isolated from the traditional drug Dracocephalum moldavica L., may protect against ischemic injury by inhibiting oxidative stress and inflammation via the CaMKII-related pathways but with weak affinity with the CaMKII molecule. microRNAs (miRNAs), functioning in post-transcriptional regulation of gene expression, may play a role in the pathological process of VaD via cognitive impairment, neuroinflammatory response, and neuronal dysfunction. This study aimed to investigate the role of tilianin in VaD therapy and the underlying mechanism through which tilianin regulates CaMKII signaling pathways based on miRNA-associated transcriptional action. Methods Rats with 2-vessel occlusion (2VO), a standard model of VaD, were treated with tilianin, vehicle control, and target overexpression or downregulation. High-throughput sequencing, qRT-PCR, and western blot analyses were utilized to identify the downstream target genes and signaling pathways of tilianin involved in VaD. Results Our results showed that tilianin ameliorated cognitive deficits, neurodegeneration, and microglial and astrocytic activation in rats with 2VO. Subsequent high-throughput sequencing and qRT-PCR analyses revealed that tilianin increased the downregulated miR-193b-3p and miR-152-3p levels in the cortex and hippocampus of 2VO rats. Mechanistically, miR-193b-3p targeting CaM and miR-152-3p targeting CaMKIIα were identified to play a role in VaD-associated pathology, inhibiting the p38 MAPK/NF--κB p65 pathway and decreasing TNF-α and IL-6 levels. Further gain- and loss-of-function experiments for these key genes showed that tilianin-exerted cognitive improvement by activating the p38 MAPK/NF--κB p65 and Bcl-2/Bax/caspase-3/PARP pathways in the brain of 2VO rats was abolished by miR-193b-3p and miR-152-3p inhibition. Moreover, CaM and CaMKIIα overexpression eliminated the elevated effects of miR-193b-3p and miR-152-3p on tilianin's protection against ischemic injury through increased inflammatory reactions and apoptotic signaling. Discussion Together, these findings indicate that tilianin improves cognition by regulating the miR-193b-3p/CaM- and miR-152-3p/CaMKIIα-mediated inflammatory and apoptotic pathways, suggesting a potential small-molecule regulator of miRNA associated with inflammatory signaling for VaD treatment.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Rui Liu
- *Correspondence: Rui Liu, ; Zhuorong Li,
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23
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Kim SE, Kim HJ, Jang H, Weiner MW, DeCarli C, Na DL, Seo SW. Interaction between Alzheimer's Disease and Cerebral Small Vessel Disease: A Review Focused on Neuroimaging Markers. Int J Mol Sci 2022; 23:10490. [PMID: 36142419 PMCID: PMC9499680 DOI: 10.3390/ijms231810490] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 11/26/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by the presence of β-amyloid (Aβ) and tau, and subcortical vascular cognitive impairment (SVCI) is characterized by cerebral small vessel disease (CSVD). They are the most common causes of cognitive impairment in the elderly population. Concurrent CSVD burden is more commonly observed in AD-type dementia than in other neurodegenerative diseases. Recent developments in Aβ and tau positron emission tomography (PET) have enabled the investigation of the relationship between AD biomarkers and CSVD in vivo. In this review, we focus on the interaction between AD and CSVD markers and the clinical effects of these two markers based on molecular imaging studies. First, we cover the frequency of AD imaging markers, including Aβ and tau, in patients with SVCI. Second, we discuss the relationship between AD and CSVD markers and the potential distinct pathobiology of AD markers in SVCI compared to AD-type dementia. Next, we discuss the clinical effects of AD and CSVD markers in SVCI, and hemorrhagic markers in cerebral amyloid angiopathy. Finally, this review provides both the current challenges and future perspectives for SVCI.
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Affiliation(s)
- Si Eun Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Neuroscience Center, Samsung Medical Center, Seoul 06351, Korea
- Samsung Alzheimer Research Center, Samsung Medical Center, Seoul 06351, Korea
- Department of Neurology, Inje University College of Medicine, Haeundae Paik Hospital, Busan 48108, Korea
| | - Hee Jin Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Neuroscience Center, Samsung Medical Center, Seoul 06351, Korea
- Samsung Alzheimer Research Center, Samsung Medical Center, Seoul 06351, Korea
| | - Hyemin Jang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Neuroscience Center, Samsung Medical Center, Seoul 06351, Korea
- Samsung Alzheimer Research Center, Samsung Medical Center, Seoul 06351, Korea
| | - Michael W. Weiner
- Center for Imaging of Neurodegenerative Diseases, University of California, San Francisco, CA 94121, USA
| | - Charles DeCarli
- Department of Neurology and Center for Neuroscience, University of California, Davis, CA 95616, USA
| | - Duk L. Na
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Neuroscience Center, Samsung Medical Center, Seoul 06351, Korea
- Samsung Alzheimer Research Center, Samsung Medical Center, Seoul 06351, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul 06355, Korea
- Stem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul 06351, Korea
| | - Sang Won Seo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Neuroscience Center, Samsung Medical Center, Seoul 06351, Korea
- Samsung Alzheimer Research Center, Samsung Medical Center, Seoul 06351, Korea
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul 06355, Korea
- Center for Clinical Epidemiology, Samsung Medical Center, Seoul 06351, Korea
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Zhang J, Zhang Y, Liu Y, Niu X. Naringenin Attenuates Cognitive Impairment in a Rat Model of Vascular Dementia by Inhibiting Hippocampal Oxidative Stress and Inflammatory Response and Promoting N-Methyl-D-Aspartate Receptor Signaling Pathway. Neurochem Res 2022; 47:3402-3413. [PMID: 36028734 DOI: 10.1007/s11064-022-03696-9] [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: 03/09/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 10/15/2022]
Abstract
Vascular dementia (VaD) is the second most common form of dementia globally, yet there are no efficient treatments. Naringenin, a natural flavonoid, exerts antioxidative, anti-inflammatory, and neuroprotective properties; however, its potential effect on VaD remain unclear. Herein, the purpose of present study was to elucidate whether naringenin attenuates cognitive dysfunction in VaD via inhibiting hippocampal oxidative stress and inflammatory response, and promoting N-methyl-D-aspartate receptors (NMDARs) signaling pathway. A rat model of VaD was established by permanent bilateral common carotid artery occlusion [2-vessel occlusion (2VO)]. Behavioral performance analyses results revealed that administration of naringenin improves cognitive impairment in rats with VaD according to the new object recognition test and the Morris water maze test. In addition, naringenin attenuated hippocampal oxidative stress by reducing reactive oxygen species generation, decreasing malondialdehyde content and recombinant reactive oxygen species modulator 1 (Romo-1) expression, and increasing superoxide dismutase and glutathione peroxidase activities in the hippocampus of VaD rats. Moreover, naringenin decreased the proinflammatory cytokines (IL-1β, IL-6, and TNF-α) levels and increased the anti-inflammatory cytokines (IL-10 and IL-4) levels in the hippocampus of 2VO surgery-treated rats, attenuating hippocampal inflammatory response during VaD. Furthermore, naringenin promoted synaptophysin (SYP), postsynaptic density protein 95 (PSD95), N-methyl-Daspartic acid receptor 1 (NR1) and N-methyl-D-aspartate receptor subunit 2B (NR2B) expressions levels in hippocampus of VaD rats. Collectively, these findings indicated that naringenin mitigates cognitive impairment in VaD rats partly via inhibiting hippocampal oxidative stress and inflammatory response and restoring NMDARs signaling pathway.
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Affiliation(s)
- Jin Zhang
- Department of Neurology, The First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Yingze District, Taiyuan, 030000, Shanxi, People's Republic of China
| | - Yu Zhang
- Department of Neurology, Shanxi Hospital of Integrated Traditional and Western Medicine, Taiyuan, 030000, Shanxi, People's Republic of China
| | - Yan Liu
- Department of Neurology, The First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Yingze District, Taiyuan, 030000, Shanxi, People's Republic of China
| | - Xiaoyuan Niu
- Department of Neurology, The First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Yingze District, Taiyuan, 030000, Shanxi, People's Republic of China.
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Ameliorative Processes of Beta-Carotene in Streptozotocin-Induced Diabetic Vascular Dementia in Rats. Processes (Basel) 2022. [DOI: 10.3390/pr10071324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Beta-carotene (BC) is a precursor of vitamin A and an excellent antioxidant. It protects the vascular system. Vascular dementia (VaD) is one of the aging disorders causing memory dysfunction. The available medicines for the management of VaD are limited. The present study aimed to evaluate the ameliorative effect of BC in streptozotocin (STZ)-induced diabetic VaD in rats. Diabetic VaD was induced through the administration of nicotinamide (NA, 50 mg/kg; i.p.) and STZ (50 mg/kg; i.p.). The test compound BC (50 and 100 mg/kg; p.o.) and reference compound donepezil (1 mg/kg; p.o.) were administered for 15 consecutive days. Cognitive changes were assessed by transfer latency (TL) using the elevated plus maze (EPM) test. The changes in acetylcholinesterase (AChE) activity were estimated in the septohippocampal system of rat brains. The administration of STZ caused significant changes in cognitive functions (increased TL) as compared to the normal group. BC ameliorated the anxiety-related cognitive behavior and neurotransmitter (elevated AChE) changes provoked by diabetic VaD. Therefore, BC could be a potential therapeutic candidate in the management of VaD.
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Upregulation of PGC-1 α Attenuates Oxygen-Glucose Deprivation-Induced Hippocampal Neuronal Injury. Neural Plast 2022; 2022:9682999. [PMID: 35719138 PMCID: PMC9203239 DOI: 10.1155/2022/9682999] [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: 04/27/2022] [Accepted: 05/25/2022] [Indexed: 11/30/2022] Open
Abstract
Hippocampal neuronal damage likely underlies cognitive impairment in vascular dementia (VaD). PPARγ coactivator-1α (PGC-1α) is a master regulator of mitochondrial biogenesis. However, the role and the precise mechanism of how PGC-1α alleviates hippocampal neuronal injury remain unknown. To address this question, HT-22 cells, an immortalized hippocampal neuron cell line, with or without PGC-1α overexpression were subjected to oxygen-glucose deprivation (OGD), which mimics the circumstance of chronic cerebral hypoperfusion in VaD. After OGD, cell viability was assessed using the MTS assay. The mitochondrial function and reactive oxygen species (ROS) were both detected. ChIP-Seq analysis was employed to discover the underlying molecular mechanism of PGC-1α-mediated neuroprotective effects. Our results showed that mitochondrial membrane potentials were increased and ROS production was decreased in PGC-1α overexpressing cells, which increased cell viability. The further bioinformatics analysis from ChIP-Seq data indicated that PGC-1α may participate in the regulation of apoptosis, autophagy, and mitophagy pathways in HT-22 cells. We found that PGC-1α promoted the LC3-II formation and reduced the neuronal apoptosis determined by TUNEL staining. In addition, PGC-1α upregulated the expressions of mitochondrial antioxidants, including SOD2, Trx2, and Prx3. In summary, our findings indicate that PGC-1α may attenuate OGD-induced hippocampal neuronal damage by regulating multiple mechanisms, like autophagy and mitochondrial function. Thus, PGC-1α may be a potential therapeutic target for hippocampal damage associated with cognitive impairment.
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Wei C, Zhu Z, Zheng JN, Lu Y, Cao C, Qu S, Liu M, Meng XE, Lou Q, Wang Q, Duan JA, Shang EX, Han Z, Zhu Y. Chinese Medicine, Succinum, Ameliorates Cognitive Impairment of Carotid Artery Ligation Rats and Inhibits Apoptosis of HT22 Hippocampal Cells via Regulation of the GSK3β/β-Catenin Pathway. Front Pharmacol 2022; 13:867477. [PMID: 35784758 PMCID: PMC9240707 DOI: 10.3389/fphar.2022.867477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/06/2022] [Indexed: 12/23/2022] Open
Abstract
Succinum is an organic mineral formed from the resin of ancient coniferous and leguminous plants, which is applied for tranquilizing mood, promoting blood circulation, and removing blood stasis in Chinese medicine. For quite a long time, the modern research of succinum mainly focuses on the study of physical and chemical properties and authenticity identification while few reports on its medicinal mechanism. In current study, we evaluated different solvent extracts of succinum on carotid artery ligation rats mimicking vascular dementia. It was found that ethyl acetate extracts of succinum significantly improved the learning and memory abilities of model rats and inhibited neuronal apoptosis in the hippocampus. On a mice hippocampal neuronal cell line (HT22), ethyl acetate extracts of succinum also exerted better action trend in inhibiting cell apoptosis induced by oxygen glucose deprivation (OGD). By using XAV-939 on both in vivo and in vitro studies, it was found that ethyl acetate extracts of succinum might exert these functions by regulating the GSK3β/β-catenin pathway. These studies revealed the neuronal function of succinum, which explained the traditional effects of succinum and provided more modern scientific basis for its clinical application.
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Affiliation(s)
- Chongqi Wei
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Ziqiang Zhu
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Jia-ni Zheng
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Yunqing Lu
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Cheng Cao
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Suchen Qu
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Mengqiu Liu
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Xue-er Meng
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Qianyin Lou
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Qingqing Wang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Jin-ao Duan
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
| | - Er-xin Shang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
- *Correspondence: Yue Zhu, ; Zhenxiang Han, ; Er-xin Shang,
| | - Zhenxiang Han
- Department of Neurology and Rehabilitation, Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Yue Zhu, ; Zhenxiang Han, ; Er-xin Shang,
| | - Yue Zhu
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nan Jing, China
- *Correspondence: Yue Zhu, ; Zhenxiang Han, ; Er-xin Shang,
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Xin YY, Wang JX, Xu AJ. Electroacupuncture ameliorates neuroinflammation in animal models. Acupunct Med 2022; 40:474-483. [PMID: 35229660 DOI: 10.1177/09645284221076515] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Neuroinflammation refers to a wide range of immune responses occurring in the brain or spinal cord. It is closely related to a variety of neurodegenerative diseases, for which it potentially represents a new direction for treatment. Electroacupuncture (EA) is one method of acupuncture treatment, which can be used as an adjuvant therapy for many diseases. This review focuses on molecular mechanisms of EA in the reduction of neuroinflammation, summarizes relevant basic research and outlines future directions for investigation. Findings: A growing body of basic research has shown that EA can ameliorate neuroinflammation centrally (in animal models of ischemic stroke, Alzheimer’s disease, traumatic brain injury, spinal cord injury, Parkinson’s disease and vascular dementia) and peripherally (e.g. after a surgical insult or injection of lipopolysaccharide) and that its effects involve different molecular mechanisms, including activation of the α7 nicotinic acetylcholine receptor signaling pathway and P2 type purinergic receptors, inhibition of nuclear factor κB, and mitigation of damage secondary to oxidative stress and NOD-like receptor protein 3 inflammasome activation. Conclusions: EA is capable of regulating multiple cell signal transduction pathways to alleviate neuroinflammation in animal models. Although the findings of animal studies are encouraging, further prospective clinical trials are needed to verify the efficacy of EA for the treatment of neuroinflammation.
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Affiliation(s)
- Yue-yang Xin
- Anesthesiology Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin-xu Wang
- Anesthesiology Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ai-jun Xu
- Anesthesiology Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Khodir SA, Faried MA, Abd-Elhafiz HI, Sweed EM. Sitagliptin Attenuates the Cognitive Deficits in L-Methionine-Induced Vascular Dementia in Rats. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7222590. [PMID: 35265716 PMCID: PMC8898801 DOI: 10.1155/2022/7222590] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/29/2022] [Indexed: 02/05/2023]
Abstract
Vascular dementia (VaD) is the second most prevalent type of dementia characterized by progressive cognitive deficits and is a major risk factor for the development of Alzheimer's disease and other neurodegenerative disorders. This study is aimed at determining the potential neuroprotective effect of sitagliptin (STG) on cognitive deficits in L-methionine-induced VaD in rats and the possible underlying mechanisms. 30 adult male Wistar albino rats were divided equally (n = 10) into three groups: control, VaD, and VaD + STG groups. The cognitive performance of the animals was conducted by open field, elevated plus maze, Y-maze, novel object recognition, and Morris water maze tests. Serum homocysteine, TNF-α, IL-6, IL-10, total cholesterol, and triglycerides levels were assessed together with hippocampal MDA, SOD, and BDNF. Histopathological and immunohistochemical assessments of the thoracic aorta and hippocampus (CA1 region) were also performed. Chronic L-methionine administration impaired memory and learning and induced anxiety. On the other hand, STG protected against cognitive deficits through improving oxidative stress biomarkers, inflammatory mediators, lipid profiles, and hippocampus level of BDNF as well as decreasing caspase-3 and GFAP and increasing Ki-67 immunoreactions in the hippocampus. Also, STG improved the endothelial dysfunction via upregulation of aortic eNOS immunoreaction. STG improved the cognitive deficits of L-methionine-induced VaD by its antioxidant, anti-inflammatory, antiapoptotic, and neurotrophic effects. These findings suggest that STG may be a promising future agent for protection against VaD.
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Affiliation(s)
- Suzan A. Khodir
- 1Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
| | - Manar A. Faried
- 2Human Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
| | - Huda I. Abd-Elhafiz
- 3Clinical Pharmacology Department, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
| | - Eman M. Sweed
- 3Clinical Pharmacology Department, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
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Li YL, Cheng F, Chen Y, Wang J, Xiao ZD, Han Y. The effectiveness and safety of Naoxintong capsules in the treatment of vascular dementia: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e27930. [PMID: 34964769 PMCID: PMC8615423 DOI: 10.1097/md.0000000000027930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Traditional Chinese medicine Naoxintong capsules have achieved good results in the treatment of vascular dementia, but there is no evidence-based medical evidence on the effectiveness and safety of the drug. Therefore, this study uses meta-analysis method to systematically evaluate the effectiveness and safety of Naoxintong capsules in the treatment of vascular dementia, with the aim of providing scientific guidance for clinical treatment and practice. METHODS This study retrieves a total of 7 network electronic databases, including 4 Chinese databases: China biomedical literature database, CNKI, Chongqing VIP database and WANFANG database, and three English databases: PubMed, Embase, The Cochrane Library. Using the combination of theme words and key words to retrieve the Chinese and English database, the literature is searched from January 1, 1990 to October 1, 2021. Two researchers independently sift through the literature, extract data and evaluate the bias risk included in the study, and in the event of a disagreement, the third researcher is invited to discuss the decision, followed by meta-analysis using software RveMan 5.3 and Stata 12.0. RESULTS All findings of this study will be published in a peer-reviewed, high-quality academic journal of medicine. CONCLUSION The results of this study will provide evidence for clinicians to find effective and safe methods of treating vascular dementia in TCM. OSF REGISTRATION NUMBER DOI 10.17605/OSF.IO/YVF72, https://osf.io/yvf72.
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Affiliation(s)
- Yan-Lin Li
- Department of Pharmacy, Haibin People's Hospital of Binhai New Area, Binhai New Area, Tianjin, China
| | - Fang Cheng
- Department of Pharmacy, Haibin People's Hospital of Binhai New Area, Binhai New Area, Tianjin, China
| | - Yan Chen
- Department of Pharmacy, Haibin People's Hospital of Binhai New Area, Binhai New Area, Tianjin, China
| | - Jun Wang
- Department of Pharmacy, Haibin People's Hospital of Binhai New Area, Binhai New Area, Tianjin, China
| | - Zeng-Dong Xiao
- Department of Traditional Chinese Medicine, Haibin People's Hospital of Binhai New Area, Tianjin, China
| | - Ying Han
- Department of Endocrinology, Haibin People's Hospital of Binhai New Area, Binhai New Area, Tianjin, China
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