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Xu X, Wang X, Zhang L, Jin Y, Li L, Jin M, Li L, Ni H. Nicotinamide adenine dinucleotide treatment confers resistance to neonatal ischemia and hypoxia: effects on neurobehavioral phenotypes. Neural Regen Res 2024; 19:2760-2772. [PMID: 38595293 PMCID: PMC11168517 DOI: 10.4103/nrr.nrr-d-23-01490] [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: 09/04/2023] [Revised: 01/16/2024] [Accepted: 01/29/2024] [Indexed: 04/11/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202412000-00031/figure1/v/2024-04-08T165401Z/r/image-tiff Neonatal hypoxic-ischemic brain injury is the main cause of hypoxic-ischemic encephalopathy and cerebral palsy. Currently, there are few effective clinical treatments for neonatal hypoxic-ischemic brain injury. Here, we investigated the neuroprotective and molecular mechanisms of exogenous nicotinamide adenine dinucleotide, which can protect against hypoxic injury in adulthood, in a mouse model of neonatal hypoxic-ischemic brain injury. In this study, nicotinamide adenine dinucleotide (5 mg/kg) was intraperitoneally administered 30 minutes before surgery and every 24 hours thereafter. The results showed that nicotinamide adenine dinucleotide treatment improved body weight, brain structure, adenosine triphosphate levels, oxidative damage, neurobehavioral test outcomes, and seizure threshold in experimental mice. Tandem mass tag proteomics revealed that numerous proteins were altered after nicotinamide adenine dinucleotide treatment in hypoxic-ischemic brain injury mice. Parallel reaction monitoring and western blotting confirmed changes in the expression levels of proteins including serine (or cysteine) peptidase inhibitor, clade A, member 3N, fibronectin 1, 5'-nucleotidase, cytosolic IA, microtubule associated protein 2, and complexin 2. Proteomics analyses showed that nicotinamide adenine dinucleotide ameliorated hypoxic-ischemic injury through inflammation-related signaling pathways (e.g., nuclear factor-kappa B, mitogen-activated protein kinase, and phosphatidylinositol 3 kinase/protein kinase B). These findings suggest that nicotinamide adenine dinucleotide treatment can improve neurobehavioral phenotypes in hypoxic-ischemic brain injury mice through inflammation-related pathways.
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Affiliation(s)
- Xiaowen Xu
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xinxin Wang
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Li Zhang
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yiming Jin
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Lili Li
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Meifang Jin
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Lianyong Li
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Hong Ni
- Division of Brain Science, Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, Jiangsu Province, China
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Wang J, Zhou C, Huang Z, Ji X, Cui R, Kang Y, Zhang G, Wang Y, Zhang T. Repetitive Transcranial Magnetic Stimulation-Mediated Neuroprotection in the 5xFAD Mouse Model of Alzheimer's Disease Through GABRG2 and SNAP25 Modulation. Mol Neurobiol 2024:10.1007/s12035-024-04354-7. [PMID: 39052185 DOI: 10.1007/s12035-024-04354-7] [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: 03/11/2024] [Accepted: 07/06/2024] [Indexed: 07/27/2024]
Abstract
Alzheimer's disease (AD) is a leading neurodegenerative disorder with substantial impacts on cognition and behavior. Repetitive transcranial magnetic stimulation (rTMS), a non-invasive neuromodulation technique, has been used to treat various neuropsychiatric disorders, but its efficacy in AD has not been thoroughly investigated. This study examines the neuroprotective effects of rTMS in the 5xFAD mouse model of AD, with a particular focus on its modulation of GABAergic neuronal activity via the GABRG2 and SNAP25 proteins. Transcriptomic sequencing of rTMS-treated 5xFAD mice revealed 32 genes influenced by the treatment, among which GABRG2 was identified as a critical modulatory target. Electrophysiological assessments, including whole-cell patch clamp recordings from frontal cortex neurons, demonstrated significant alterations in inhibitory synaptic currents following rTMS. Subsequent experiments involved sh-GABRG2 transduction combined with rTMS treatment (20Hz, 14 days), examining behavioral responses, GABAergic neuron functionality, cortical GABA expression, cerebrospinal fluid GABA concentrations, β-amyloid accumulation, and pro-inflammatory cytokine levels. The results indicated notable improvements in behavioral performance, enhanced functionality of GABAergic neurons, and reductions in β-amyloid deposition and neuroinflammation after rTMS treatment. Further analysis revealed that SNAP25 overexpression could counteract the negative effects of GABRG2 silencing, highlighting the crucial role of SNAP25 downstream of GABRG2 in mediating rTMS's therapeutic effects in AD. This research highlights rTMS's potential to modulate synaptic and vesicular transport mechanisms, offering a promising avenue for ameliorating symptoms of AD through neuroprotective pathways.
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Affiliation(s)
- Jinyang Wang
- Department of Neurology, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Chenming Zhou
- Core Facilities and Centers, Hebei Medical University, Shijiazhuang, 050017, China
| | - Zhimin Huang
- Department of Stomatology, People's Hospital, Shizhu Tujia Autonomous County, Chongqing, 409100, China
| | - Xiaoming Ji
- Laboratory of Neurobiology, Hebei Medical University, Zhongshan Donglu No.361, ShijiazhuangHebei Province, 050017, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, 050017, China
| | - Rui Cui
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yunxiao Kang
- Laboratory of Neurobiology, Hebei Medical University, Zhongshan Donglu No.361, ShijiazhuangHebei Province, 050017, China
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, 050017, China
| | - Guoliang Zhang
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yu Wang
- Laboratory of Neurobiology, Hebei Medical University, Zhongshan Donglu No.361, ShijiazhuangHebei Province, 050017, China
| | - Tianyun Zhang
- Laboratory of Neurobiology, Hebei Medical University, Zhongshan Donglu No.361, ShijiazhuangHebei Province, 050017, China.
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Fu X, Yan S, Hu Z, Sheng W, Li W, Kuang S, Feng X, Liu L, Zhang W, He Q. Guhan Yangsheng Jing mitigates hippocampal neuronal pyroptotic injury and manifies learning and memory capabilities in sleep deprived mice via the NLRP3/Caspase1/GSDMD signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 326:117972. [PMID: 38403005 DOI: 10.1016/j.jep.2024.117972] [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: 11/15/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Guhan Yangsheng Jing (GHYSJ) is a traditional Chinese patent medicine, that has the function of nourishing the kidney and replenishing the essence, invigorating the brain and calming the mind. It is often used to treat dizziness, memory loss, sleep disorders, fatigue, and weakness, etc. However, its mechanism for improving sleep has not yet been determined. AIM OF THE STUDY This study aims to explore the effects of GHYSJ on Sleep Deprivation (SD)-induced hippocampal neuronal pyroptotic injury, learning and cognitive abilities, and sleep quality in mice. METHODS In this study, a PCPA-induced SD mouse model was established. We assessed the influence of GHYSJ on sleep quality and mood by using the pentobarbital-induced sleep test (PIST) and sucrose preference test (SPT). The pharmacological effects of GHYSJ on learning and memory impairment were evaluated by the Morris Water Maze (MWM) and Open Field Test (OFT). Pathological changes in the hippocampal tissue of the SD rats were observed via HE staining and Nissl staining. The severity of neuronal damage was evaluated by detecting the expression of the neuronal marker Microtubule-associated protein 2 (MAP2), via immunohistochemistry and immunofluorescence. Furthermore, the levels of neurotransmitter 5-hydroxytryptophan (5-HTP), 5-hydroxy tryptamine (5-HT), γ-aminobutyric acid (GABA), and Glutamic acid (Glu) in hippocampal tissues, as well as the expression of inflammatory factors Interleukin-1β (IL-1β) and Interleukin-18 (IL-18) in serum, were determined by ELISA. The expressions of mRNA and protein NOD-like receptor thermal protein domain associated protein 3 (NLRP3), Gasdermin D (GSDMD), Cysteinyl aspartate specific proteinase1 (Caspase1), High mobility group box-1 protein (HMGB1) and Apoptosis-associated speck-like protein containing CARD (ASC) related to the cellular ferroptosis pathway were tested and analyzed by RT-PCR and WB respectively. RESULTS PCPA significantly diminishes the sleep span of experimental animals by expediting the expenditure of 5-HT, consequently establishing an essentially direct SD model. The intervention of GHYSJ displays remarkable efficacy in mitigating insomnia symptoms, encompassing difficulties in initiating sleep and insufficient sleep duration. Likewise, it ameliorates memory function impairments induced by sleep deprivation, along with symptoms such as fatigue and depletion of vitality. GHYSJ exerts a protective influence on hippocampal neurons facilitated by inhibiting the down regulation of MAP2 and maintaining the equilibrium of neurotransmitters (5-HTP, 5-HT, GABA, and Glu). It diminishes the expression of intracellular pyroptosis-associated inflammatory factors (IL-1β and IL-18) and curbs the activation of the NLRP3/Caspase1/GSDMD pyroptosis-related signaling pathways, thereby alleviating the damage caused by hippocampal neuronal pyroptosis.
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Affiliation(s)
- Xinying Fu
- College of Integrated Chinese and Western Medicine, Hunan Provincial Key Laboratory for Prevention and Treatment of Heart and Brain Diseases with Integrated Traditional Chinese and Western Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; College of Integrated Chinese Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; Hunan University of Medicine, Huaihua, Hunan, 418000, China
| | - Siyang Yan
- The First Affiliated Hospital of Hunan University of Traditional Chinese Medicine, Changsha, Hunan, 410007, China
| | - Zongren Hu
- College of Integrated Chinese Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; Hunan University of Medicine, Huaihua, Hunan, 418000, China
| | - Wen Sheng
- College of Integrated Chinese Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; Hunan University of Medicine, Huaihua, Hunan, 418000, China
| | - Wanyu Li
- College of Integrated Chinese and Western Medicine, Hunan Provincial Key Laboratory for Prevention and Treatment of Heart and Brain Diseases with Integrated Traditional Chinese and Western Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China
| | - Shida Kuang
- College of Integrated Chinese Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; Hunan University of Medicine, Huaihua, Hunan, 418000, China
| | - Xue Feng
- Qidi Pharmaceutical Group Co., Ltd, Hengyang, Hunan, 421099, China
| | - Lumei Liu
- College of Integrated Chinese and Western Medicine, Hunan Provincial Key Laboratory for Prevention and Treatment of Heart and Brain Diseases with Integrated Traditional Chinese and Western Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China.
| | - Wei Zhang
- College of Integrated Chinese and Western Medicine, Hunan Provincial Key Laboratory for Prevention and Treatment of Heart and Brain Diseases with Integrated Traditional Chinese and Western Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China.
| | - Qinghu He
- College of Integrated Chinese and Western Medicine, Hunan Provincial Key Laboratory for Prevention and Treatment of Heart and Brain Diseases with Integrated Traditional Chinese and Western Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; College of Integrated Chinese Medicine, Hunan University of Traditional Chinese Medicine, Hunan, 410208, China; Hunan University of Medicine, Huaihua, Hunan, 418000, China.
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Liu Y, Qin Y, Zhang Y. circRNA-PTPN4 mediated regulation of FOXO3 and ZO-1 expression: implications for blood-brain barrier integrity and cognitive function in uremic encephalopathy. Cell Biol Toxicol 2024; 40:22. [PMID: 38630149 PMCID: PMC11024022 DOI: 10.1007/s10565-024-09865-6] [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: 12/16/2023] [Accepted: 03/25/2024] [Indexed: 04/19/2024]
Abstract
Uremic encephalopathy (UE) poses a significant challenge in neurology, leading to the need to investigate the involvement of non-coding RNA (ncRNA) in its development. This study employed ncRNA-seq and RNA-seq approaches to identify fundamental ncRNAs, specifically circRNA and miRNA, in the pathogenesis of UE using a mouse model. In vitro and in vivo experiments were conducted to explore the circRNA-PTPN4/miR-301a-3p/FOXO3 axis and its effects on blood-brain barrier (BBB) function and cognitive abilities. The research revealed that circRNA-PTPN4 binds to and inhibits miR-301a-3p, leading to an increase in FOXO3 expression. This upregulation results in alterations in the transcriptional regulation of ZO-1, affecting the permeability of human brain microvascular endothelial cells (HBMECs). The axis also influences the growth, proliferation, and migration of HBMECs. Mice with UE exhibited cognitive deficits, which were reversed by overexpression of circRNA-PTPN4, whereas silencing FOXO3 exacerbated these deficits. Furthermore, the uremic mice showed neuronal loss, inflammation, and dysfunction in the BBB, with the expression of circRNA-PTPN4 demonstrating therapeutic effects. In conclusion, circRNA-PTPN4 plays a role in promoting FOXO3 expression by sequestering miR-301a-3p, ultimately leading to the upregulation of ZO-1 expression and restoration of BBB function in mice with UE. This process contributes to the restoration of cognitive abilities.
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Affiliation(s)
- Yuhan Liu
- Department of Nephrology, General Hospital of the Northern Theatre, No. 83, Wenhua Road, Shenhe District, Shenyang, 110000, Liaoning Province, People's Republic of China
| | - Yanling Qin
- Department of Nephrology, General Hospital of the Northern Theatre, No. 83, Wenhua Road, Shenhe District, Shenyang, 110000, Liaoning Province, People's Republic of China
| | - Yanning Zhang
- Department of Nephrology, General Hospital of the Northern Theatre, No. 83, Wenhua Road, Shenhe District, Shenyang, 110000, Liaoning Province, People's Republic of China.
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Li X, Wei C, Jin Y, Zhang J, Zhong P, Zhang D, Huang X. Time-resolved map of serum metabolome profiling in D-galactose-induced aging rats with exercise intervention. iScience 2024; 27:108999. [PMID: 38362265 PMCID: PMC10867647 DOI: 10.1016/j.isci.2024.108999] [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: 06/19/2023] [Revised: 10/07/2023] [Accepted: 01/19/2024] [Indexed: 02/17/2024] Open
Abstract
Exercise, an intervention with wide-ranging effects on the whole body, has been shown to delay aging. Due to aging and exercise as modulator of metabolism, a picture of how exercise delayed D-galactose (D-gal)-induced aging in a time-resolved manner was presented in this paper. The mapping of molecular changes in response to exercise has become increasingly accessible with the development of omics techniques. To explore the dynamic changes during exercise, the serum of rats and D-gal-induced aging rats before, during, and after exercise was analyzed by untargeted metabolomics. The variation of metabolites was monitored to reveal the specific response to D-gal-induced senescence and exercise in multiple pathways, especially the basal amino acid metabolism, including glycine serine and threonine metabolism, cysteine and methionine metabolism, and tryptophan metabolism. The homeostasis was disturbed by D-gal and maintained by exercise. The paper was expected to provide a theoretical basis for the study of anti-aging exercise.
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Affiliation(s)
- Xue Li
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan Province 610041, China
| | - Changling Wei
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan Province 610041, China
| | - Yu Jin
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan Province 610041, China
| | - Jinmei Zhang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan Province 610041, China
| | - Pei Zhong
- iCarbonX Diagnostics (Zhuhai) Company Limited, Zhuhai, Guangdong Province 518110, China
| | - Deman Zhang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan Province 610041, China
| | - Xiaohan Huang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan Province 610041, China
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Zou M, Wang D, Chen Y, Yang C, Xu S, Dai Y. Dajianzhong decoction ameliorated D-gal-induced cognitive aging by triggering mitophagy in vivo and in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117212. [PMID: 37783403 DOI: 10.1016/j.jep.2023.117212] [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: 08/15/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 10/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dajianzhong decoction (DJZ) is a classical famous formula for treating yang-deficiency-syndrome in traditional Chinese medicine and recorded in Jin-Kui-Yao-Lue in Dynasty of Dong Han. Cognitive aging can present similar features of mitochondrial energy deficits to the clinical features of Yang deficiency. However, there is poor understanding of the effects of DJZ treatment on mitophagy in cognitive aging. AIM OF THE STUDY The aims of this work were to decipher the effectiveness and mechanism of DJZ against cognitive aging, focusing on mitophagy. MATERIALS AND METHODS YFP-Parkin HeLa cells, D-galactose (D-gal) -induced mice (500 mg/kg for 35 d, s. c.) and SH-SY5Y cells (80 mg/ml for 6 h) were established. Firstly, the formation of YFP-Parkin puncta (a well-known mitophagy marker) in YFP-Parkin HeLa cells was employed to discover the mitophagy induction of DJZ. Moreover, the genes and proteins related to PINK1/Parkin pathway and mitochondrial functions were evaluated after treatment with DJZ in vivo (3.5 g/kg or 1.75 g/kg, i. g, 35 d) and in vitro (0.2, 2 and 20 μg/ml, 12 h). Furthermore, the effectiveness of DJZ (3.5 g/kg or 1.75 g/kg, i. g) for alleviating cognitive aging and nerve damage was measured in D-gal mice. Finally, siPINK1 was applied to reverse validation of DJZ in vitro. RESULTS The formation of YFP-Parkin puncta in YFP-Parkin HeLa cells was markedly induced by DJZ in a dose-dependent manner. The immunofluorescence intensity of Parkin and the protein expression of Parkin in mitochondrial membrane in D-gal mice were significantly increased after treatment of DJZ. The inhibition of PINK1/Parkin pathway in D-gal-induced mice and SH-SY5Y cells was significantly activated by DJZ. Simultaneously, the impairment of mitochondrial functions induced by D-gal were markedly reversed by DJZ. In addition, DJZ significantly ameliorated the neuropathological injury and cognitive declines in D-gal mice. Finally, after PINK1 was knocked down by siPINK1 in vitro, the neuroprotective effects of DJZ and the Parkin enhancement effect of DJZ were markedly reversed. CONCLUSION Our findings firstly showed DJZ could relieve cognitive aging through facilitating PINK1/Parkin-mediated mitophagy to protect against mitochondrial functions, indicating DJZ may be regarded as a promising intervention in cognitive aging.
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Affiliation(s)
- Mi Zou
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Dan Wang
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Yuanyuan Chen
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Chuan Yang
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Shijun Xu
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Yuan Dai
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China.
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Zhan M, Liu X, Xia X, Yang Y, Xie Y, Zhang L, Lin C, Zhu J, Ding W, Xu S. Promotion of neuroinflammation by the glymphatic system: a new insight into ethanol extracts from Alisma orientale in alleviating obesity-associated cognitive impairment. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155147. [PMID: 37864890 DOI: 10.1016/j.phymed.2023.155147] [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: 08/27/2023] [Revised: 09/20/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Obesity is one of the critical risk factors for cognitive dysfunction. The glymphatic system (GS) plays a key role in the pathogenesis of cognitive deficits. Alisma orientale has been shown to have anti-inflammatory and antihyperlipidemic effects, whereas its effects and underlying mechanisms on obesity-associated cognitive impairment (OACI) are unclear. PURPOSE This work aims to decipher the mechanism of ethanol extracts from Alisma orientale (EEAO) in restoring cognitive impairment in HFD-induced obese mice through a GS approach. METHODS The restoration of abnormal glucose/lipid metabolism and excess adipose deposition by EEAO were assayed by biochemical analysis and visually displayed by a micro-CT scanner and Oil Red O staining. Biochemical assays and Western blotting (WB) were used to measure cerebral blood flow (CBF), free fatty acid (FFAs) levels and the structural integrity of the blood-brain barrier (BBB). Microglial activation and neuroinflammation were assessed with immunohistochemistry staining, ELISA and WB. Moreover, GS function was determined by immunofluorescence staining, fluorescence tracer imaging and WB. Finally, the neuropathological features and cognitive functions were detested with immunohistochemistry staining, immunofluorescence and Morris Water Maze. RESULTS EEAO not only alleviated body weight, cerebral lipid accumulation and serum FFAs in HFD-induced obese mice, but also increased CBF and BBB integrity. EEAO suppressed microglial activation and lipid deposition in the hippocampus and reduced the level of inflammatory cytokines including IL-6, IL-1β and TNF-α in brain tissue. Interestingly, long-term HFD-induced GS dysfunction was significantly restored after EEAO intervention, and neuropathological lesions and cognitive deficits were also markedly rescued. CONCLUSION EEAO rescued the cognitive deficits of OACI by inhibiting neuroinflammation and restoring GS dysfunction, indicating a potential remedy for OACI.
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Affiliation(s)
- Meng Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiao Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiuwen Xia
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Youjun Yang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ya Xie
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lu Zhang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chunqiao Lin
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jiushuang Zhu
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Weijun Ding
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Shijun Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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8
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Li C, Chen Z, He S, Chen Y, Liu J. Unveiling the influence of daily dietary patterns on brain cortical structure: insights from bidirectional Mendelian randomization. Food Funct 2023; 14:10418-10429. [PMID: 37960880 DOI: 10.1039/d3fo02879h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Cognitive impairment is a significant concern in aging populations. This study utilized Mendelian randomization analysis to explore the impact of dietary habits and macro-nutrients on cortical structure. A bidirectional Mendelian randomization approach was employed, incorporating large-scale genetic data on dietary habits and brain cortical structure. The results did not reveal significant causal relationships between dietary factors and overall cortical structure and thickness. However, specific dietary factors showed associations with cortical structure in certain regions. For instance, fat intake affected six cortical regions, while milk, protein, fruits, and water were associated with changes in specific regions. Reverse analysis suggested that cortical thickness influenced the consumption of alcohol, carbohydrates, coffee, and fish. These findings contribute to understanding the potential mechanisms underlying the role of dietary factors in cognitive function changes and provide evidence supporting the existence of the gut-brain axis.
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Affiliation(s)
- Cong Li
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Zhe Chen
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Shaqi He
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Yanjing Chen
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
- Clinical Research Center for Medical Imaging in Hunan Province, Changsha, Hunan Province, 410011, People's Republic of China
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9
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Xie Z, Qin Y. Is diet related to osteoarthritis? A univariable and multivariable Mendelian randomization study that investigates 45 dietary habits and osteoarthritis. Front Nutr 2023; 10:1278079. [PMID: 38035348 PMCID: PMC10687195 DOI: 10.3389/fnut.2023.1278079] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/03/2023] [Indexed: 12/02/2023] Open
Abstract
Background Diet is a safe intervention for many chronic diseases as a modifiable lifestyle. However, the potential causal effect of many dietary intake habits on the risk of osteoarthritis has not been fully understood. The purpose of this study was to reveal the potential causal relationship of 45 genetically predicted dietary intakes with osteoarthritis and its subtypes. Methods Data on 45 dietary intakes were obtained from the UK Biobank study of approximately 500,000 participants, and data on six osteoarthritis-related phenotypes were obtained from the Genetics of Osteoarthritis Consortium study of 826,690 participants. We performed univariable Mendelian randomization (MR), multivariable MR and linkage disequilibrium score regression (LDSC) analyses. Results In univariate analyses, 59 potential associations between diet and osteoarthritis were found. After false discovery rate (FDR) correction and sensitivity analyses, 23 reliable causal evidence were identified. In multivariate analyses, controlling separately for the effects of body mass index, total body bone mineral density, and smoking status, eight robust causal relationships remained: Muesli intake was negatively associated with knee osteoarthritis, spine osteoarthritis and total knee replacement. Dried fruit intake had a negative association with osteoarthritis of knee and total knee replacement. Eating cheese may reduce the risk of osteoarthritis in the knee and spine. And alcohol usually taken with meals was associated with a reduced risk of total knee replacement. LDSC analyses showed significant genetic correlations between all exposures and their corresponding outcomes, respectively, in these eight causal relationships. Conclusion Evidence of dietary effects on osteoarthritis is provided in our study, which has important implications for the prevention, management, and intervention of osteoarthritis in common sites through rational dietary modification.
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Affiliation(s)
| | - Yanguo Qin
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
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10
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Tang C, Zheng X, Zhong Y, Chen D, Zhu Y, Wang S, Xiong L, Zhu Z. The role of TREM1 in regulating microglial polarization in sevoflurane-induced perioperative neurocognitive disorders. J Neuroimmunol 2023; 379:578070. [PMID: 37148600 DOI: 10.1016/j.jneuroim.2023.578070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/27/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
Microglia-mediated neuroinflammatory responses play a key role in perioperative neurocognitive disorders (PND). Triggering receptor expressed on myeloid cells-1 (TREM1) has been shown to be a key regulator of inflammation. However, its role in PND remains largely unknown. This study aimed to evaluate the role of TREM1 in sevoflurane-induced PND. We applied AAV knockdown TREM1 in hippocampal microglia in aging mice. The mice were then subjected to neurobehavioral and biochemical testing after the intervention of sevoflurane. We found that sevoflurane inhalation can cause PND in mice, increase hippocampal TREM1 expression, polarize microglia to M1 type, upregulate TNF-α and IL-1β expression (pro-inflammatory), and inhibit TGF-β and IL-10 expression (anti-inflammatory). Knocking down TREM1 can improve sevoflurane-induced cognitive dysfunction, reduce M1 type marker iNOS, and increase M2 type marker ARG, improving the neuroinflammation. TREM1 is a target for sevoflurane-induced PND prevention.
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Affiliation(s)
- Chunchun Tang
- Suzhou Medical College of Soochow University, Suzhou, China; Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xue Zheng
- Department of Anesthesiology, Maternal and Child Health Care Hospital of Zunyi, Zunyi, China
| | - Yuanping Zhong
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Dongqin Chen
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yuhang Zhu
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Sihui Wang
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Liulin Xiong
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhaoqiong Zhu
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
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11
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Chen Y, Yang C, Zou M, Wang D, Sheng R, Zhan M, Chen Q, Yang W, Liu X, Xu S. Inhibiting mitochondrial inflammation through Drp1/HK1/NLRP3 pathway: A mechanism of alpinetin attenuated aging-associated cognitive impairment. Phytother Res 2023. [PMID: 36772986 DOI: 10.1002/ptr.7767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/20/2022] [Accepted: 01/29/2023] [Indexed: 02/12/2023]
Abstract
Mitochondrial inflammation triggered by abnormal mitochondrial division and regulated by the Drp1/HK1/NLRP3 pathway is correlated with the progression of aging-associated cognitive impairment (AACI). Alpinetin is a novel flavonoid derived from Zingiberaceae that has many bioactivities such as antiinflammation and anti-oxidation. However, whether alpinetin alleviates AACI by suppressing Drp1/HK1/NLRP3 pathway-inhibited mitochondrial inflammation is still unknown. In the present study, D-galactose (D-gal)-induced aging mice and BV-2 cells were used, and the effects of alpinetin on learning and memory function, neuroprotection and activation of the Drp1/HK1/NLRP3 pathway were investigated. Our data indicated that alpinetin significantly alleviated cognitive dysfunction and neuronal damage in the CA1 and CA3 regions of D-gal-treated mice. Moreover, D-gal-induced microglial activation was markedly reduced by alpinetin by inhibiting the Drp1/HK1/NLRP3 pathway-suppressed mitochondrial inflammation, down-regulating the levels of p-Drp1 (s616), VDAC, NLRP3, ASC, Cleaved-caspase 1, IL-18, and IL-1β, and up-regulating the expression of HK1. Furthermore, after Drp1 inhibition by Mdivi-1 in vitro, the inhibitory effect of alpinetin on Drp1/HK1/NLRP3 pathway was more evident. In summary, the current results implied that alpinetin attenuated aging-related cognitive deficits by inhibiting the Drp1/HK1/NLRP3 pathway and suppressing mitochondrial inflammation, suggesting that the inhibition of the Drp1/HK1/NLRP3 pathway is one of the mechanisms by which alpinetin attenuates AACI.
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Affiliation(s)
- Yuanyuan Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chuan Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mi Zou
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dan Wang
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ruilin Sheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Meng Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qi Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wenqin Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiao Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shijun Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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12
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Liu J, Xie Y, Lu Y, Zhao Z, Zhuang Z, Yang L, Huang H, Li H, Mao Z, Pi S, Chen F, He Y. APP/PS1 Gene-Environmental Cadmium Interaction Aggravates the Progression of Alzheimer's Disease in Mice via the Blood-Brain Barrier, Amyloid-β, and Inflammation. J Alzheimers Dis 2023; 94:115-136. [PMID: 37248897 DOI: 10.3233/jad-221205] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND There is limited information about gene-environment interaction on the occurrence and the progression of Alzheimer's disease. OBJECTIVE To explore the effect of environmental low-dose cadmium (Cd) exposure on the progress of Alzheimer's disease and the underlining mechanism. METHODS We administered 1 mg/L, 10 mg/L cadmium chloride (treated groups), and water (control group) to C57BL/6J and APP/PS1 mice through drinking water, from one week before mating, until the offspring were sacrificed at 6 months of age. The behaviors, Cd level, blood-brain barrier (BBB) leakage, Aβ1-42 deposition, and inflammation expression were evaluated in these mice. RESULTS Mice of both genotypes had similar blood Cd levels after exposure to the same dose of Cd. The toxic effects of Cd on the two genotypes differed little in terms of neuronal histomorphology and BBB permeability. Cd caused a series of pathological morphological changes in the mouse brains and more fluorescent dye leakage at higher doses. Furthermore, the APP/PS1 mice had more severe damage than the C57BL/6J mice, based on the following five criteria. They were increasing anxiety-like behavior and chaos movement, spatial reference memory damage, Aβ plaque deposition in mouse brains, increasing microglia expression in the brain, and IL-6 higher expression in the cortex and in the serum. CONCLUSION Low-dose Cd exposure for 6 months increases Aβ plaque deposition and BBB permeability, exacerbates inflammatory responses, and activates microglia, in APP/PS1 mice. APP/PS1 gene-environmental Cd interaction aggravates the progression of Alzheimer's disease in mice.
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Affiliation(s)
- Jieyi Liu
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yirong Xie
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yao Lu
- Office of Academic Affairs, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhiqiang Zhao
- Department of Toxicology, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong, China
| | - Zhixiong Zhuang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Linqing Yang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Haiyan Huang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Hongya Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhiyi Mao
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shurong Pi
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Fubin Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yun He
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
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13
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Li X, Wen W, Li P, Fu Y, Chen H, Wang F, Dai Y, Xu S. Mitochondrial Protection and Against Glutamate Neurotoxicity via Shh/Ptch1 Signaling Pathway to Ameliorate Cognitive Dysfunction by Kaixin San in Multi-Infarct Dementia Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5590745. [PMID: 34306310 PMCID: PMC8285175 DOI: 10.1155/2021/5590745] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/17/2021] [Indexed: 12/05/2022]
Abstract
Multi-infarct dementia (MID), a prominent subtype of vascular dementia (VD), is responsible for at least 15 to 20 percent of dementia in the elderly. Mitochondrial dysfunctions and glutamate neurotoxicity due to chronic hypoperfusion and oxidative stress were regarded as the major risk factors in the pathogenesis. Kaixin San (KXS), a classic prescription of Beiji Qianjin Yaofang, was applied to treatment for "amnesia" and has been demonstrated to alleviate the cognitive deficit in a variety of dementias, including MID. However, little is known whether mitochondria and glutamate are associated with the protection of KXS in MID treatment. The aim of this study was to investigate the role of KXS in improving the cognitive function of MID rats through strengthening mitochondrial functions and antagonizing glutamate neurotoxicity via the Shh/Ptch1 signaling pathway. Our data showed that KXS significantly ameliorated memory impairment and hippocampal neuron damage in MID rats. Moreover, KXS improved hippocampal mitochondrial functions by reducing the degree of mitochondrial swelling, increasing the mitochondrial membrane potential (MMP), and elevating the energy charge (EC) and ATP content in MID rats. As expected, the concentration of glutamate and the expression of p-NMDAR1 were significantly reduced by KXS in the brain tissue of MID rats. Furthermore, our results showed that KXS noticeably activated the Shh/Ptch1 signaling pathway which was demonstrated by remarkable elevations of Ptch1, Smo, and Gli1 protein levels in the brain tissue of MID rats. Intriguingly, the inhibition of the Shh signaling pathway with cyclopamine significantly inhibited the protective effects of KXS on glutamate-induced neurotoxicity in PC12 cells. To sum up, these findings suggested that KXS protected MID rats from memory loss by rescuing mitochondrial functions as well as against glutamate neurotoxicity through activating Shh/Ptch1 signaling pathway.
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Affiliation(s)
- Xiaoqiong Li
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Wen Wen
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Ping Li
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Ying Fu
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Hao Chen
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Fushun Wang
- Institute of Brain and Psychological Science, Sichuan Normal University, Chengdu 610060, China
| | - Yuan Dai
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China
| | - Shijun Xu
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, Sichuan 611137, China
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14
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Zhao M, Dai Y, Li P, Wang J, Ma T, Xu S. Inhibition of NLRP3 inflammasome activation and pyroptosis with the ethyl acetate fraction of Bungeanum ameliorated cognitive dysfunction in aged mice. Food Funct 2021; 12:10443-10458. [PMID: 34231604 DOI: 10.1039/d1fo00876e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Zanthoxylum bungeanum Maxim (Rutaceae), a medicinal herb and foodstuff, has previously been demonstrated as useful for the potential prevention of age-related cognitive dysfunction. However, the mechanisms and material basis remain elusively understood. The prevention of cognitive impairment by four fractions of Z. bungeanum was evaluated in d-galactose-induced aging mice, including petroleum ether (PE), methylene chloride (DCM), ethyl acetate (EA), and n-butanol (N-BAI). The results showed that mice treated with EA and N-BAI had significantly alleviated d-galactose-induced memory deficit. In addition, EA could clearly protect neurons from cell death, alleviate oxidative damage and inhibit the activation of microglia in aging mice. Our data also showed that the activation of the NLRP3 inflammasome, the expression of pyroptosis-related proteins, and the release of IL-1β and IL-18 could be remarkably inhibited by the EA fraction in aging mice and LPS/ATP-induced BV-2 microglial cells. Besides, the chemical composition of an active EA fraction was qualitatively analyzed by using HPLC-MS/MS. Thirty-four compounds were tentatively identified based on their retention times, accurate mass, and MS/MS spectra. Moreover, eighteen reference compounds were analyzed by HPLC-MS/MS and their contents of EA were determined. The work demonstrated that the ethyl acetate fraction of Bungeanum ameliorated cognitive deficits, and its effects may be related to ameliorating oxidative stress and suppressing the NLRP3 inflammasome pathway and GSDMD-mediated pyroptosis in aging mice.
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Affiliation(s)
- Meihuan Zhao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China. and Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yuan Dai
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China and School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Ping Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China. and Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Jie Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China. and Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Tengyun Ma
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China. and Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Shijun Xu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China. and Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
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15
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Wu Y, Zhu J, Liu H, Liu H. Licochalcone A improves the cognitive ability of mice by regulating T- and B-cell proliferation. Aging (Albany NY) 2021; 13:8895-8915. [PMID: 33714945 PMCID: PMC8034954 DOI: 10.18632/aging.202704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 02/08/2021] [Indexed: 11/25/2022]
Abstract
Licochalcone A (LA), a flavonoid found in licorice, has anticancer, antioxidant, anti-inflammatory, and neuroprotective properties. Here, we explored the effect of injecting LA into the tail vein of middle-aged C57BL/6 mice on their cognitive ability as measured by the Morris water maze (MWM) test and cerebral blood flow (CBF). The related mechanisms were assessed via RNA-seq, and T (CD3e+) and B (CD45R/B220+) cells in the spleen and whole blood were quantified via flow cytometry. LA improved the cognitive ability, according to the MWM test results, and upregulated the CBF level of treated mice. The RNA-seq results indicate that LA affected the interleukin (IL)-17 signaling pathway, which is related to T- and B-cell proliferation, and the flow cytometry data suggest that LA promoted T- and B-cell proliferation in the spleen and whole blood. We also performed immune reconstruction via a tail vein injection of lymphocytes into B-NDG (NOD-PrkdcscidIl2rgtm1/Bcge) mice before treating them with LA. We tested cognitive ability by subjecting these animals to new object recognition tests and quantified the splenic and whole blood T and B cells. Cognitive ability improved after immune reconstruction and LA treatment, and LA promoted T- and B-cell proliferation in the spleen and whole blood. This study demonstrates that LA, by activating the IL-17 signaling pathway, promotes T- and B-cell proliferation in the spleen and whole blood of mice and improves cognitive ability. Thus, LA may have immune-modulating therapeutic potential for improving cognition.
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Affiliation(s)
- Yating Wu
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China
| | - Jianbo Zhu
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China
| | - Haifeng Liu
- China Colored-Cotton (Group) Co., Ltd., Urumqi 830016, Xinjiang, China
| | - Hailiang Liu
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China.,Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China
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