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Transplantation of fibrin-thrombin encapsulated human induced neural stem cells promotes functional recovery of spinal cord injury rats through modulation of the microenvironment

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Neural Regeneration research 2024年第2期19卷 440-446页

作者： Sumei Liu Baoguo Liu Qian Li Tianqi Zheng Bochao Liu Mo Li Zhiguo Chen Cell Therapy center Beijing Institute of GeriatricsXuanwu HospitalCapital Medical UniversityNational Clinical Research Center for Geriatric Diseasesand Key Laboratory of Neurodegenerative DiseasesMinistry of EducationBeijingChina center of Neural Injury and Repair Beijing Institute for Brain DisordersBeijingChina center of Parkinson’s Disease Beijing Institute for Brain DisordersBeijingChina

Recent studies have mostly focused on engraftment of cells at the lesioned spinal cord,with the expectation that differentiated neurons facilitate *** a few studies have attempted to use transplanted cells and/or biomaterials as major modulators of the spinal cord injury ***,we aimed to investigate the role of microenvironment modulation by cell graft on functional recovery after spinal cord *** neural stem cells reprogrammed from human peripheral blood mononuclear cells,and/or thrombin plus fibrinogen,were transplanted into the lesion site of an immunosuppressed rat spinal cord injury ***,Beattie and Bresnahan score,electrophysiological function,and immunofluorescence/histological analyses showed that transplantation facilitates motor and electrophysiological function,reduces lesion volume,and promotes axonal neurofilament expression at the lesion *** of the graft and niche components revealed that although the graft only survived for a relatively short period(up to 15 days),it still had a crucial impact on the ***,induced neural stem cells and human fibrin reduced the number of infiltrated immune cells,biased microglia towards a regenerative M2 phenotype,and changed the cytokine expression profile at the lesion ***-induced changes of the microenvironment during the acute and subacute stages might have disrupted the inflammatory cascade chain reactions,which may have exerted a long-term impact on the functional recovery of spinal cord injury rats.

关键词： biomaterial fibrinogen functional recovery induced neural stem cell transplantation microenvironment microglia spinal cord injury thrombin

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Circadian rhythm disruption and retinal dysfunction:a bidirectional link in Alzheimer’s disease?

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Neural Regeneration research 2024年第9期19卷 1967-1972页

作者： Laura Carrero DesireéAntequera Cristina Municio Eva Carro Group of neurodegenerative Diseases Hospital Universitario 12 de Octubre Research Institute(imas12)MadridSpainNetwork Center for Biomedical Research in Neurodegenerative Diseases(CIBERNED)ISCIIIMadridSpain PhD Program in Neuroscience Autonoma de Madrid UniversityMadridSpain Neurobiology of Alzheimer’s Disease Unit Functional Unit for Research into Chronic DiseasesInstituto de Salud Carlos IIIMadridSpainNetwork Centre for Biomedical Research in Neurodegenerative Diseases(CIBERNED)ISCIIIMadridSpain

Dysfunction in circadian rhythms is a common occurrence in patients with Alzheimer’s disease.A predominant function of the retina is circadian synchronization,carrying information to the brain through the retinohypothalamic tract,which projects to the suprachiasmatic ***,Alzheimer’s disease hallmarks,including amyloid-β,are present in the retinas of Alzheimer’s disease patients,followed/associated by structural and functional ***,the mechanistic link between circadian dysfunction and the pathological changes affecting the retina in Alzheimer’s disease is not fully understood,although some studies point to the possibility that retinal dysfunction could be considered an early pathological process that directly modulates the circadian rhythm.

关键词： Alzheimer’s disease amyloid circadian rhythm neurodegeneration retina

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Cognitive impairment in cerebral small vessel disease induced by hypertension

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Neural Regeneration research 2024年第7期19卷 1454-1462页

作者： Weipeng Wei Denglei Ma Lin Li Lan Zhang Department of Pharmacy Xuanwu Hospital of Capital Medical UniversityBeijingChina Beijing Geriatric Medical research center Beijing Engineering Research Center for Nervous System DrugsNational Center for Neurological DisordersNational Clinical Research Center for Geriatric DiseasesBeijingChina

Hypertension is a primary risk factor for the progression of cognitive impairment caused by cerebral small vessel disease,the most common cerebrovascular *** r,the causal relationship between hypertension and cerebral small vessel disease remains *** has substantial negative impacts on brain health and is recognized as a risk factor for cerebrovascular *** hypertension and lifestyle factors are associated with risks for stro ke and dementia,and cerebral small vessel disease can cause dementia and *** is the main driver of cerebral small vessel disease,which changes the structure and function of cerebral vessels via various mechanisms and leads to lacunar infarction,leukoaraiosis,white matter lesions,and intracerebral hemorrhage,ultimately res ulting in cognitive decline and demonstrating that the brain is the to rget organ of *** review updates our understanding of the pathogenesis of hypertensioninduced cerebral small vessel disease and the res ulting changes in brain structure and function and declines in cognitive *** also discuss drugs to treat cerebral small vessel disease and cognitive impairment.

关键词： blood-brain barrier cerebral small vessel disease cognitive impairment dementia endothelial dysfunction enlarged perivascular space hypertension lacunar infarction neuroinflammation treatment white matter high signal intensity

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Abnormal expression of Tau in damaged oligodendrocytes of HLD1 mice

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Neural Regeneration research 2024年第7期19卷 1405-1406页

作者： Tomohiro Torii Laboratory of Ion Channel Pathophysiology Graduate School of Brain ScienceDoshisha UniversityKyotanabe-shiKyotoJapan center for research in neurodegenerative Disease Doshisha UniversityKyotanabe-shiKyotoJapan

Patients with hypomyelinating leukodystrophies(H LDs),multiple sclerosis(MS),and leukodystrophies including Aicardi-Goutieres syndrome,adrenoleukodystrophy,Alexander disease,Canavan disease,cerebrotendinous xanthomato... 详细信息

关键词： dystrophy cytes Patients

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Interaction between catechol-O-methyltransferase Val/Met polymorphism and cognitive reserve for negative symptoms in schizophrenia

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World Journal of Psychiatry 2024年第5期14卷 695-703页

作者： Wen-Peng Hou Xiang-Qin Qin Wei-Wei Hou Yun-Yi Han Qi-Jing Bo Fang Dong Fu-Chun Zhou Xian-Bin Li Chuan-Yue Wang Beijing Key Laboratory of Mental disorders National Clinical Research Center for Mental Disorders&National Center for Mental DisordersBeijing Anding HospitalCapital Medical UniversityBeijing 100088China Advanced Innovation center for Human Brain Protection Capital Medical UniversityBeijing 100069China

BACKGROUND Cognitive reserve(CR)and the catechol-O-methyltransferase(COMT)Val/Met polymorphism are reportedly linked to negative symptoms in ***,the regulatory effect of the COMT genotype on the relationship between CR and negative symptoms is still *** To investigate whether the relationship between CR and negative symptoms could be regulated by the COMT Val/Met *** In a cross-sectional study,54 clinically stable patients with schizophrenia underwent assessments for the COMT genotype,CR,and negative *** was estimated using scores in the information and similarities subtests of a short form of the Chinese version of the Wechsler Adult Intelligence *** COMT Met-carriers exhibited fewer negative symptoms than Val *** the total sample,significant negative correlations were found between negative symptoms and information,*** between information,similarities and negative symptoms were observed in Val homozygotes only,with information and similarities showing interaction effects with the COMT genotype in relation to negative symptoms(information,β=-0.282,95%CI:-0.552 to-0.011,P=0.042;similarities,β=-0.250,95%CI:-0.495 to-0.004,P=0.046).CONCLUSION This study provides initial evidence that the association between negative symptoms and CR is under the regulation of the COMT genotype in schizophrenia.

关键词： Catechol-O-methyltransferase Val/Met polymorphism Cognitive reserve Crystallized intelligence Negative symptoms Schizophrenia

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The roles of RACK1 in the pathogenesis of Alzheimer's disease

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Journal of Biomedical research 2024年第2期38卷 137-148页

作者： Wenting He Xiuyu Shi Zhifang Dong Pediatric research Institute Ministry of Education Key Laboratory of Child Development and DisordersNational Clinical Research Center for Child Health and DisordersChongqing Key Laboratory of Child Neurodevelopment and Cognitive DisordersChildren's Hospital of Chongqing Medical UniversityChongqing 400014China

The receptor for activated C kinase 1(RACK1)is a protein that plays a crucial role in various signaling pathways and is involved in the pathogenesis of Alzheimer's disease(AD),a prevalent neurodegenerative ***1 is highly expressed in neuronal cells of the central nervous system and regulates the pathogenesis of ***,RACK1 is involved in regulation of the amyloid-β precursor protein processing through α-or β-secretase by binding to different protein kinase C ***,RACK1 promotes synaptogenesis and synaptic plasticity by inhibiting N-methyl-D-aspartate receptors and activating gamma-aminobutyric acid A receptors,thereby preventing neuronal ***1 also assembles inflammasomes that are involved in various neuroinflammatory pathways,such as nuclear factor-kappa B,tumor necrosis factor-alpha,and NOD-like receptor family pyrin domain-containing 3 *** potential to design therapeutics that block amyloid-β accumulation and inflammation or precisely regulate synaptic plasticity represents an attractive therapeutic strategy,in which RACK1 is a potential *** this review,we summarize the contribution of RACK1 to the pathogenesis of AD and its potential as a therapeutic target.

关键词： RACK1 Alzheimer's disease PKC amyloid-β synaptic plasticity neuroinflammation

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Motor cortical circuit adaptations in parkinsonism

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Neural Regeneration research 2024年第10期19卷 2107-2108页

作者： Hong-Yuan Chu Department of neurodegenerative Science Van Andel Research InstituteGrand RapidsMIUSA Aligning Science Across Parkinson’s(ASAP)Collaborative research Network

Parkinson's disease is a chronic and progressive neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra pars compacta,which leads to the featured motor impairment of parki... 详细信息

关键词： parkin impairment rigidity

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Vitamin A deficiency suppresses CEACAM1 to impair colonic epithelial barrier function via downregulating microbial-derived short-chain fatty acids

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Genes & Diseases 2024年第2期11卷 1066-1081页

作者： Junyan Yan Lu Xiao Di Feng Baolin Chen Ting Yang Bei Tong Ruifang Luo Yuting Wang Jie Chen Children Nutrition research center Children's Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Child Nutrition and HealthMinistry of Education Key Laboratory of Child Development and DisordersNational Clinical Research Center for Child Health and DisordersChongqing 401122China Department of Gastroenterology Children's Hospital of Chongqing Medical UniversityChongqing 401122China

Vitamin A (VA) plays an essential role in modulating both the gut microbiota and gut barrier ***-chain fatty acids (SCFAs),as metabolites of the gut microbiota,protect the physiological intestinal barrier;however,they are compromised when VA is ***,there is an urgent need to understand how and which SCFAs modulate colonic epithelial barrier integrity in VA deficiency (VAD).Herein,compared with normal VA rats (VAN),at the beginning of pregnancy,we confirmed that the colonic desmosome junction was impaired in the VAD group,and the amounts of acetate,propionate,and butyrate declined because of the decreased abundance of SCFA-producing bacteria (Romboutsia ,Collinsella ,and Allobaculum ).The differentially expressed genes correlated with the gut barrier and the histone deacetylase complex between the VAD and VAN groups were enriched by RNA *** the VAD group,the expression levels of colonic CEA cell adhesion molecule 1 (CEACAM1) were down-regulated,and the levels of histone deacetylase 1 (HDAC1) and HDAC3 were ***,the above changes in the VAD groups were rescued by VA supplementation in the early postnatal *** study indicated that in Caco-2 cells,butyrate treatment significantly repressed the enrichment of HDAC3 on the promoter of the CEACAM1 gene to induce its *** findings support that butyrate intervention can alleviate the impairment of colonic barrier function caused by VAD,and timely postnatal VA intervention may reverse the damage caused by VAD on gut barrier integrity during pregnancy.

关键词： CEACAM1 Colonic epithelial barrier HDAC3 Short-chain fatty acids Vitamin A deficiency

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Targeting ASIC1a Promotes Neural Progenitor Cell Migration and Neurogenesis in Ischemic Stroke

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research 2024年第1期2023卷 369-387页

作者： Hongfei Ge Tengyuan Zhou Chao Zhang Yupeng Cun Weixiang Chen Yang Yang Qian Zhang Huanhuan Li Jun Zhong Xuyang Zhang Hua Feng Rong Hu Department of Neurosurgery and Key Laboratory of Neurotrauma Southwest HospitalThird Military Medical University(Army Medical University)400038 ChongqingChina Medical research center Southwest HospitalThird Military Medical University(Army Medical University)400038 ChongqingChina Pediatric research Institute Ministry of Education Key Laboratory of Child Development and DisordersNational Clinical Research Center for Child Health and DisordersChildren’s Hospital of Chongqing Medical University400014 ChongqingChina

Cell replacement therapy using neural progenitor cells(NPCs)has been shown to be an effective treatment for ischemic ***,the therapeutic effect is unsatisfactory due to the imbalanced homeostasis of the local microenvironment after *** acidosis is a common imbalanced homeostasis in the penumbra and could activate acid-sensing ion channels 1a(ASIC1a),a subunit of proton-gated cation channels following ischemic ***,the role of ASIC1a in NPCs post-ischemia remains ***,our results indicated that ASIC1a was expressed in NPCs with channel functionality,which could be activated by extracellular *** evidence revealed that ASIC1a activation inhibited NPC migration and neurogenesis through RhoA signaling-mediated reorganization of filopodia formation,which could be primarily reversed by pharmacological or genetic disruption of *** vivo data showed that the knockout of the ASIC1a gene facilitated NPC migration and neurogenesis in the penumbra to improve behavioral recovery after stroke.

关键词： ASIC1a homeostasis inhibited

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Recent advancement of sonogenetics:A promising noninvasive cellular manipulation by ultrasound

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Genes & Diseases 2024年第5期11卷 163-182页

作者： Jin Tang Mingxuan Feng Dong Wang Liang Zhang Ke Yang Pediatric research Institute Children’s Hospital of Chongqing Medical UniversityNational Clinical Research Center for Child Health and DisordersMinistry of Education Key Laboratory of Child Development and DisordersChina International Science and Technology Cooperation Base of Child Development and Critical DisordersChongqing Engineering Research Center of Stem Cell TherapyChongqing 400014China Department of Ultrasound The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Tongji Medical College Huazhong University of Science and TechnologyWuhanHubei 430074China

Recent advancements in biomedical research have underscored the importance of noninvasive cellular manipulation ***,a method that uses genetic engineering to produce ultrasound-sensitive proteins in target cells,is gaining prominence along with optogenetics,electrogenetics,and *** stimulation with ultrasound,these proteins trigger a cascade of cellular activities and *** traditional ultrasound modalities,sonogenetics offers enhanced spatial selectivity,improving precision and safety in disease *** technology broadens the scope of non-surgical interventions across a wide range of clinical research and therapeutic applications,including neuromodulation,oncologic treatments,stem cell therapy,and *** current literature predominantly emphasizes ultrasonic neuromodulation,this review offers a comprehensive exploration of *** discuss ultrasound properties,the specific ultrasound-sensitive proteins employed in sonogenetics,and the technique’s potential in managing conditions such as neurological disorders,cancer,and ophthalmic diseases,and in stem cell *** objective is to stimulate fresh perspectives for further research in this promising field.

关键词： Mechanosensitive channel Neuromodulation Sonogenetics Ultrasound Ultrasound-sensitive protein

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