Journal of integrative neuroscience最新文献

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Infantile Amnesia can be Operationalized as a Psychological Meta Norm in the Development of Memory.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-02-10 DOI: 10.31083/JIN25889
Bozhidara Stoencheva, Kristina Stoyanova, Drozdstoy Stoyanov
{"title":"Infantile Amnesia can be Operationalized as a Psychological Meta Norm in the Development of Memory.","authors":"Bozhidara Stoencheva, Kristina Stoyanova, Drozdstoy Stoyanov","doi":"10.31083/JIN25889","DOIUrl":"https://doi.org/10.31083/JIN25889","url":null,"abstract":"<p><p>This paper offers a syncretic synthesis of the highlights of the scientific knowledge accumulated to date on the mechanisms of infantile amnesia (IA). IA can be conceptualized as a meta-norm of memory development. The review shows that the neurobiological and neuropsychological evidence for IA converges within a common metacognitive framework of inquiry. The involvement of consciousness in the conditioning of memory traces and the association between infantile knowledge and implicit memory allow IA to be analyzed as a phenomenon with complex, universal neuropsychic regulation of a higher order. This approach overcomes the paradox of understanding IA.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 2","pages":"25889"},"PeriodicalIF":2.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resting-State Brain Network Characteristics Related to Mild Cognitive Impairment: A Preliminary fNIRS Proof-of-Concept Study.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-25 DOI: 10.31083/JIN26406
Guohui Yang, Chenyu Fan, Haozheng Li, Yu Tong, Shuang Lin, Yashuo Feng, Fengzhi Liu, Chunrong Bao, Hongyu Xie, Yi Wu
{"title":"Resting-State Brain Network Characteristics Related to Mild Cognitive Impairment: A Preliminary fNIRS Proof-of-Concept Study.","authors":"Guohui Yang, Chenyu Fan, Haozheng Li, Yu Tong, Shuang Lin, Yashuo Feng, Fengzhi Liu, Chunrong Bao, Hongyu Xie, Yi Wu","doi":"10.31083/JIN26406","DOIUrl":"https://doi.org/10.31083/JIN26406","url":null,"abstract":"<p><strong>Background: </strong>This study investigates the reliability of functional near-infrared spectroscopy (fNIRS) in detecting resting-state brain network characteristics in patients with mild cognitive impairment (MCI), focusing on static resting-state functional connectivity (sRSFC) and dynamic resting-state functional connectivity (dRSFC) patterns in MCI patients and healthy controls (HCs) without cognitive impairment.</p><p><strong>Methods: </strong>A total of 89 MCI patients and 83 HCs were characterized using neuropsychological scales. Subject sRSFC strength and dRSFC variability coefficients were evaluated via fNIRS. The study evaluated the feasibility of using fNIRS to measure these connectivity metrics and compared resting-state brain network characteristics between the two groups. Correlations with Montreal Cognitive Assessment (MoCA) scores were also explored.</p><p><strong>Results: </strong>sRSFC strength in homologous brain networks was significantly lower than in heterologous networks (<i>p</i> < 0.05). A significant negative correlation was also observed between sRSFC strength and dRSFC variability at both the group and individual levels (<i>p</i> < 0.001). While sRSFC strength did not differentiate between MCI patients and HCs, the dRSFC variability between the dorsal attention network (DAN) and default mode network (DMN), and between the ventral attention network (VAN) and visual network (VIS), emerged as sensitive biomarkers after false discovery rate correction (<i>p</i> < 0.05). No significant correlation was found between MoCA scores and connectivity measures.</p><p><strong>Conclusions: </strong>fNIRS can be used to study resting-state brain networks, with dRSFC variability being more sensitive than sRSFC strength for discriminating between MCI patients and HCs. The DAN-DMN and VAN-VIS regions were found to be particularly useful for the identification of dRSFC differences between the two groups.</p><p><strong>Clinical trial registration: </strong>ChiCTR2200057281, registered on 6 March, 2022; https://www.chictr.org.cn/showproj.html?proj=133808.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 2","pages":"26406"},"PeriodicalIF":2.5,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Role of Microglia in Perioperative Pain and Pain Treatment: Recent Advances in Research. 小胶质细胞在围手术期疼痛和疼痛治疗中的作用:最近的研究进展
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-25 DOI: 10.31083/JIN22675
Shengnan Shi, Xingrui Gong
{"title":"The Role of Microglia in Perioperative Pain and Pain Treatment: Recent Advances in Research.","authors":"Shengnan Shi, Xingrui Gong","doi":"10.31083/JIN22675","DOIUrl":"https://doi.org/10.31083/JIN22675","url":null,"abstract":"<p><p>Microglia play a crucial role in monitoring the microenvironment of the central nervous system. Over the past decade, the role of microglia in the field of pain has gradually been unraveled. Microglia activation not only releases proinflammatory factors that enhance nociceptive signaling, but also participates in the resolving of pain. Opioids induce microglia activation, which enhances phagocytic activity and release of neurotoxic substances. Conversely, microglia activation reduces opioid efficacy and results in opioid tolerance. The application of microglia research to clinical pain management and drug development is a promising but challenging area. Microglia-targeted therapies may provide new avenues for pain management.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 2","pages":"22675"},"PeriodicalIF":2.5,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Telomere Length and Oxidative Damage in Children and Adolescents with Autism Spectrum Disorder: A Systematic Review and Meta-Analysis.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-23 DOI: 10.31083/JIN24948
Leping Ma, Cui Liu, Ran Song, Yeping Qian, Feng Zhang
{"title":"Telomere Length and Oxidative Damage in Children and Adolescents with Autism Spectrum Disorder: A Systematic Review and Meta-Analysis.","authors":"Leping Ma, Cui Liu, Ran Song, Yeping Qian, Feng Zhang","doi":"10.31083/JIN24948","DOIUrl":"https://doi.org/10.31083/JIN24948","url":null,"abstract":"<p><strong>Background: </strong>Autism spectrum disorder (ASD) has been reported to confer an increased risk of natural premature death. Telomere erosion caused by oxidative stress is a common consequence in age-related diseases. However, whether telomere length (TL) and oxidative indicators are significantly changed in ASD patients compared with controls remains controversial. The aim of this study was to determine the associations of ASD with TL and oxidative indicators by performing a meta-analysis of all published evidence.</p><p><strong>Methods: </strong>The PubMed and Embase databases were searched for articles published up to April, 2024. The effect size was expressed as standardized mean difference (SMD) and 95% confidence interval (CI) via Stata 15.0 software.</p><p><strong>Results: </strong>Thirty-nine studies were included. Pooled results showed that compared with controls, children and adolescents with ASD were associated with significantly shorter TL (SMD = -0.48; 95% CI = -0.66- -0.29; <i>p</i> < 0.001; particularly in males), lower total antioxidant capacity (TAC: SMD = -1.15; 95% CI = -2.01- -0.30; <i>p</i> = 0.008), and higher oxidative DNA (8-hydroxy-2<sup>'</sup>-deoxyguanosine, 8-OHdG: SMD = 0.63; 95% CI = 0.03-1.23; <i>p</i> = 0.039), lipid (hexanolyl-lysine, HEL: SMD = 0.37; 95% CI = 0.13-0.62; <i>p</i> = 0.003), and protein (3-nitrotyrosine, 3-NT: SMD = 0.86; 95% CI = 0.21-1.51; <i>p</i> = 0.01; dityrosine, DT: SMD = 0.66; 95% CI = 0.521-0.80; <i>p</i> < 0.01) damage. There were no significant differences between ASD and controls in 8-isoprostane and oxidative stress index after publication bias correction, and in N-formylkynurenine during overall meta-analysis.</p><p><strong>Conclusions: </strong>TL, 8-OHdG, TAC, HEL, 3-NT, and DT represent potential biomarkers for prediction of ASD in children and adolescents.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"24948"},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Robustness of White Matter Brain Networks Decreases with Aging.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-23 DOI: 10.31083/JIN25816
Chenye Huang, Xie Wang, Daojun Xie
{"title":"The Robustness of White Matter Brain Networks Decreases with Aging.","authors":"Chenye Huang, Xie Wang, Daojun Xie","doi":"10.31083/JIN25816","DOIUrl":"https://doi.org/10.31083/JIN25816","url":null,"abstract":"<p><strong>Background: </strong>White matter (WM) is a principal component of the human brain, forming the structural basis for neural transmission between cortico-cortical and subcortical structures. The impairment of WM integrity is closely associated with the aging process, manifesting as the reorganization of brain networks based on graph theoretical analysis of complex networks and increased volume of white matter hyperintensities (WMHs) in imaging studies.</p><p><strong>Methods: </strong>This study investigated changes in the robustness of WM brain networks during aging and assessed their correlation with WMHs. We constructed WM brain networks for 159 volunteers from a community sample dataset using diffusion tensor imaging (DTI). We then calculated the robustness of these networks by simulating neurodegeneration based on network attack analysis, and studied the correlations between WM network robustness, age, and the proportion of WMHs.</p><p><strong>Results: </strong>The analysis revealed a moderate, negative correlation between WM network robustness and age, and a weak and negative correlation between WM network robustness and the proportion of WMHs.</p><p><strong>Conclusions: </strong>These findings suggest that WM pathologies are associated with aging and offer new insights into the imaging characteristics of the aging brain.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"25816"},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the Pathophysiology, Diagnosis, and Treatment Options of Multiple Sclerosis.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-21 DOI: 10.31083/JIN25081
Simone Lorenzut, Ilaria Del Negro, Giada Pauletto, Lorenzo Verriello, Leopoldo Spadea, Carlo Salati, Mutali Musa, Caterina Gagliano, Marco Zeppieri
{"title":"Exploring the Pathophysiology, Diagnosis, and Treatment Options of Multiple Sclerosis.","authors":"Simone Lorenzut, Ilaria Del Negro, Giada Pauletto, Lorenzo Verriello, Leopoldo Spadea, Carlo Salati, Mutali Musa, Caterina Gagliano, Marco Zeppieri","doi":"10.31083/JIN25081","DOIUrl":"https://doi.org/10.31083/JIN25081","url":null,"abstract":"<p><p>The complicated neurological syndrome known as multiple sclerosis (MS) is typified by demyelination, inflammation, and neurodegeneration in the central nervous system (CNS). Managing this crippling illness requires an understanding of the complex interactions between neurophysiological systems, diagnostic techniques, and therapeutic methods. A complex series of processes, including immunological dysregulation, inflammation, and neurodegeneration, are involved in the pathogenesis of MS. Gene predisposition, autoreactive T cells, B cells, and cytokines are essential participants in the development of the disease. Demyelination interferes with the ability of the CNS to transmit signals, which can cause a variety of neurological symptoms, including impaired motor function, sensory deficiencies, and cognitive decline. Developing tailored therapeutics requires understanding the underlying processes guiding the course of the disease. Neuroimaging, laboratory testing, and clinical examination are all necessary for an accurate MS diagnosis. Evoked potentials and cerebrospinal fluid studies assist in verifying the diagnosis, but magnetic resonance imaging (MRI) is essential for identifying distinctive lesions in the CNS. Novel biomarkers have the potential to increase diagnostic precision and forecast prognosis. The goals of MS treatment options are to control symptoms, lower disease activity, and enhance quality of life. To stop relapses and reduce the course of the disease, disease-modifying treatments (DMTs) target several components of the immune response. DMTs that are now on the market include interferons, glatiramer acetate, monoclonal antibodies, and oral immunomodulators; each has a unique mode of action and safety profile. Symptomatic treatments improve patients' general well-being by addressing specific symptoms, including pain, sphincter disorders, fatigue, and spasticity. Novel treatment targets, neuroprotective tactics, and personalized medicine techniques will be the main focus of MS research in the future. Improving long-term outcomes for MS patients and optimizing disease treatment may be possible by utilizing immunology, genetics, and neuroimaging developments. This study concludes by highlighting the complexity of multiple MS, including its changing therapeutic landscape, diagnostic problems, and neurophysiological foundations. A thorough grasp of these elements is essential to improving our capacity to identify, manage, and eventually overcome this intricate neurological condition.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"25081"},"PeriodicalIF":2.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in the Parietal Lobe Subregion Volume at Various Stages of Alzheimer's Disease and the Role in Cognitively Normal and Mild Cognitive Impairment Conversion.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-21 DOI: 10.31083/JIN25991
Fang Lu, Qing Ma, Cailing Shi, Wenjun Yue
{"title":"Changes in the Parietal Lobe Subregion Volume at Various Stages of Alzheimer's Disease and the Role in Cognitively Normal and Mild Cognitive Impairment Conversion.","authors":"Fang Lu, Qing Ma, Cailing Shi, Wenjun Yue","doi":"10.31083/JIN25991","DOIUrl":"https://doi.org/10.31083/JIN25991","url":null,"abstract":"<p><strong>Background: </strong>Volume alterations in the parietal subregion have received less attention in Alzheimer's disease (AD), and their role in predicting conversion of mild cognitive impairment (MCI) to AD and cognitively normal (CN) to MCI remains unclear. In this study, we aimed to assess the volumetric variation of the parietal subregion at different cognitive stages in AD and to determine the role of parietal subregions in CN and MCI conversion.</p><p><strong>Methods: </strong>We included 662 participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI) database, including 228 CN, 221 early MCI (EMCI), 112 late MCI (LMCI), and 101 AD participants. We measured the volume of the parietal subregion based on the Human Brainnetome Atlas (BNA-246) using voxel-based morphometry among individuals at various stages of AD and the progressive and stable individuals in CN and MCI. We then calculated the area under the curve (AUC) of the receiver operating characteristic (ROC) curve to test the ability of parietal subregions to discriminate between different cognitive groups. The Cox proportional hazard model was constructed to determine which specific parietal subregions, alone or in combination, could be used to predict progression from MCI to AD and CN to MCI. Finally, we examined the relationship between the cognitive scores and parietal subregion volume in the diagnostic groups.</p><p><strong>Results: </strong>The left inferior parietal lobule (IPL)_6_5 (rostroventral area 39) showed the best ability to discriminate between patients with AD and those with CN (AUC = 0.688). The model consisting of the left IPL_6_4 (caudal area 40) and bilateral IPL_6_5 showed the best combination for predicting the CN progression to MCI. The left IPL_6_1 (caudal area 39) showed the best predictive power in predicting the progression of MCI to AD. Certain subregions of the volume correlated with cognitive scales.</p><p><strong>Conclusion: </strong>Subregions of the angular gyrus are essential in the early onset and subsequent development of AD, and early detection of the volume of these regions may be useful in identifying the tendency to develop the disease and its treatment.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"25991"},"PeriodicalIF":2.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neural Correlates of Social Perception Deficit in Schizophrenia: An Event-related Potential Study.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-21 DOI: 10.31083/JIN25427
Jiang-Juan Li, Xin-Ping Li, Jia-Min Han, Yi-Fan Sun, Xiao-Hong Liu, Xue-Zheng Gao, Li-Min Chen, Zhen-He Zhou, Hong-Liang Zhou
{"title":"Neural Correlates of Social Perception Deficit in Schizophrenia: An Event-related Potential Study.","authors":"Jiang-Juan Li, Xin-Ping Li, Jia-Min Han, Yi-Fan Sun, Xiao-Hong Liu, Xue-Zheng Gao, Li-Min Chen, Zhen-He Zhou, Hong-Liang Zhou","doi":"10.31083/JIN25427","DOIUrl":"https://doi.org/10.31083/JIN25427","url":null,"abstract":"<p><strong>Background: </strong>Deficits in emotion recognition have been shown to be closely related to social-cognitive functioning in schizophrenic. This study aimed to investigate the event-related potential (ERP) characteristics of social perception in schizophrenia patients and to explore the neural mechanisms underlying these abnormal cognitive processes related to social perception.</p><p><strong>Methods: </strong>Participants included 33 schizophrenia patients and 35 healthy controls (HCs). All participants underwent electroencephalogram recording while completing the Emotion Intensity Recognition Task (EIRT). Behavioral data and ERP components were analyzed using repeated measures analysis of variance.</p><p><strong>Results: </strong>Schizophrenia patients had longer reaction times (RTs) to sad faces compared with disgusted faces, and had lower accuracy than the HCs. Additionally, schizophrenia patients had lower accuracy than the HCs for disgusted faces, surprised faces, angry faces, and fearful faces. Late Positive Potential (LPP) mean amplitudes of the HCs were larger than the schizophrenia patients for sad faces in the frontal lobe and central lobe. For happy faces, the HCs elicited larger LPP mean amplitudes than schizophrenia patients in the frontal lobe and central lobe. For surprised faces, the LPP mean amplitudes were higher in the HCs in the central lobe and parietal lobe than in schizophrenia patients. The HCs exhibited larger LPP mean amplitudes for angry faces in the frontal lobe, central lobe, and parietal lobe than in schizophrenia patients. For fearful faces, the HCs elicited a larger LPP mean amplitude than schizophrenia patients in the frontal lobe, central lobe, and parietal lobe.</p><p><strong>Conclusions: </strong>Schizophrenia patients present impaired social perception, and the observed ERP patterns provide valuable insights into the neural mechanisms underlying the EIRT results, highlighting the differences between HCs and schizophrenia patients. These findings underscore the potential of the EIRT as a biomarker for cognitive and emotional dysregulation in schizophrenia.</p><p><strong>Clinical trial registration: </strong>No: ChiCTR2300078149. Registered 29 November, 2023; https://www.chictr.org.cn/showproj.html?proj=211510.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"25427"},"PeriodicalIF":2.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mitochondria as a Therapeutic Target: Focusing on Traumatic Brain Injury.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-21 DOI: 10.31083/JIN25292
Randhall Bruce Carteri
{"title":"Mitochondria as a Therapeutic Target: Focusing on Traumatic Brain Injury.","authors":"Randhall Bruce Carteri","doi":"10.31083/JIN25292","DOIUrl":"https://doi.org/10.31083/JIN25292","url":null,"abstract":"<p><p>Mitochondria are organelles of eukaryotic cells delimited by two membranes and cristae that consume oxygen to produce adenosine triphosphate (ATP), and are involved in the synthesis of vital metabolites, calcium homeostasis, and cell death mechanisms. Strikingly, normal mitochondria function as an integration center between multiple conditions that determine neural cell homeostasis, whereas lesions that lead to mitochondrial dysfunction can desynchronize cellular functions, thus contributing to the pathophysiology of traumatic brain injury (TBI). In addition, TBI leads to impaired coupling of the mitochondrial electron transport system with oxidative phosphorylation that provides most of the energy needed to maintain vital functions, ionic homeostasis, and membrane potentials. Furthermore, mitochondrial metabolism produces signaling molecules such as reactive oxygen species (ROS), regulating calcium levels and controlling the expression profile of intrinsic pro-apoptotic effectors influenced by TBI. Hence, the set of these functions is widely referred to as 'mitochondrial function', although the complexity of the relationship between such components limits such a definition. In this review, we present mitochondria as a therapeutic target, focus on TBI, and discuss aspects of mitochondrial structure and function.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"25292"},"PeriodicalIF":2.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Impact of Optical Undersampling on the Ca2+ Signal Resolution in Ca2+ Imaging of Spontaneous Neuronal Activity.
IF 2.5 4区 医学
Journal of integrative neuroscience Pub Date : 2025-01-21 DOI: 10.31083/JIN26242
Katarina D Milicevic, Violetta O Ivanova, Tina N Brazil, Cesar A Varillas, Yan M D Zhu, Pavle R Andjus, Srdjan D Antic
{"title":"The Impact of Optical Undersampling on the Ca<sup>2+</sup> Signal Resolution in Ca<sup>2+</sup> Imaging of Spontaneous Neuronal Activity.","authors":"Katarina D Milicevic, Violetta O Ivanova, Tina N Brazil, Cesar A Varillas, Yan M D Zhu, Pavle R Andjus, Srdjan D Antic","doi":"10.31083/JIN26242","DOIUrl":"https://doi.org/10.31083/JIN26242","url":null,"abstract":"<p><strong>Background: </strong>In neuroscience, Ca<sup>2+</sup> imaging is a prevalent technique used to infer neuronal electrical activity, often relying on optical signals recorded at low sampling rates (3 to 30 Hz) across multiple neurons simultaneously. This study investigated whether increasing the sampling rate preserves critical information that may be missed at slower acquisition speeds.</p><p><strong>Methods: </strong>Primary neuronal cultures were prepared from the cortex of newborn pups. Neurons were loaded with Oregon Green BAPTA-1 AM (OGB1-AM) fluorescent indicator. Spontaneous neuronal activity was recorded at low (14 Hz) and high (500 Hz) sampling rates, and the same neurons (n = 269) were analyzed under both conditions. We compared optical signal amplitude, duration, and frequency.</p><p><strong>Results: </strong>Although recurring Ca<sup>2+</sup> transients appeared visually similar at 14 Hz and 500 Hz, quantitative analysis revealed significantly faster rise times and shorter durations (half-widths) at the higher sampling rate. Small-amplitude Ca<sup>2+</sup> transients, undetectable at 14 Hz, became evident at 500 Hz, particularly in the neuropil (putative dendrites and axons), but not in nearby cell bodies. Large Ca<sup>2+</sup> transients exhibited greater amplitudes and faster temporal dynamics in dendrites compared with somas, potentially due to the higher surface-to-volume ratio of dendrites. In neurons bulk-loaded with OGB1-AM, cell nucleus-mediated signal distortions were observed in every neuron examined (n = 57). Specifically, two regions of interest (ROIs) on different segments of the same cell body displayed significantly different signal amplitudes and durations due to dye accumulation in the nucleus.</p><p><strong>Conclusions: </strong>Our findings reveal that Ca<sup>2+</sup> signal undersampling leads to three types of information loss: (1) distortion of rise times and durations for large-amplitude transients, (2) failure to detect small-amplitude transients in cell bodies, and (3) omission of small-amplitude transients in the neuropil.</p>","PeriodicalId":16160,"journal":{"name":"Journal of integrative neuroscience","volume":"24 1","pages":"26242"},"PeriodicalIF":2.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143058176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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