Abstract:
:It is well established that microglial form and function are inextricably linked. In recent years, the traditional view that microglial form ranges between "ramified resting" and "activated amoeboid" has been emphasized through advancing imaging techniques that point to microglial form being highly dynamic even within the currently accepted morphological categories. Moreover, microglia adopt meaningful intermediate forms between categories, with considerable crossover in function and varying morphologies as they cycle, migrate, wave, phagocytose, and extend and retract fine and gross processes. From a quantitative perspective, it is problematic to measure such variability using traditional methods, but one way of quantitating such detail is through fractal analysis. The techniques of fractal analysis have been used for quantitating microglial morphology, to categorize gross differences but also to differentiate subtle differences (e.g., amongst ramified cells). Multifractal analysis in particular is one technique of fractal analysis that may be useful for identifying intermediate forms. Here we review current trends and methods of fractal analysis, focusing on box counting analysis, including lacunarity and multifractal analysis, as applied to microglial morphology.
journal_name
Front Cell Neuroscijournal_title
Frontiers in cellular neuroscienceauthors
Karperien A,Ahammer H,Jelinek HFdoi
10.3389/fncel.2013.00003subject
Has Abstractpub_date
2013-01-30 00:00:00pages
3issn
1662-5102journal_volume
7pub_type
杂志文章abstract::Besides its "classical" neurotransmitter function, serotonin (5-HT) has been found to also act as a neurodevelopmental signal. During development, the 5-HT projection system, besides an external placental source, represents one of the earliest neurotransmitter systems to innervate the brain. One of the targets of the ...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2013.00143
更新日期:2013-10-04 00:00:00
abstract::The Hessian fly, Mayetiola destructor Say (Diptera, Cecidomyiidae), is a pest of wheat and belongs to a group of gall-inducing herbivores. This species has a unique life history and several ecological features that differentiate it from other Diptera such as Drosophila melanogaster and blood-feeding mosquitoes. These ...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2016.00212
更新日期:2016-09-07 00:00:00
abstract::Microglia, the immune competent cells of the central nervous system (CNS), normally exist in a resting state characterized by a ramified morphology with many processes, and become activated to amoeboid morphology in response to brain injury, infection, and a variety of neuroinflammatory stimuli. Many studies focused o...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2018.00309
更新日期:2018-09-11 00:00:00
abstract::A fundamental interest in circuit analysis is to parse out the synaptic inputs underlying a behavioral experience. Toward this aim, we have devised an unbiased strategy that specifically labels the afferent inputs that are activated by a defined stimulus in an activity-dependent manner. We validated this strategy in f...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2020.00114
更新日期:2020-05-12 00:00:00
abstract::Neural stem cells in the subventricular zone (SVZ) of the lateral ventricle of adult rodent brain generate oligodendrocyte progenitor cells (OPCs) that disperse throughout the corpus callosum and striatum where some of OPCs differentiate into mature oligodendrocytes. Studies in animal models of stroke demonstrate that...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fncel.2013.00201
更新日期:2013-10-29 00:00:00
abstract:Background:The functional aspects of mast cell-microglia interactions are important in neuroinflammation. Our previous studies have demonstrated that mast cell degranulation can directly induce microglia activation. However, the role of mast cells in Lipopolysaccharide (LPS)-induced microglia activation, neuroinflammat...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2019.00191
更新日期:2019-05-03 00:00:00
abstract::The GABAB receptor agonist, baclofen, is used to treat muscle tightness and cramping caused by spasticity in a number of disorders including multiple sclerosis (MS), but its precise mechanism of action is unknown. Neuroinflammation drives the central pathology in MS and is mediated by both immunoreactive glial cells a...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2015.00284
更新日期:2015-07-28 00:00:00
abstract::Thermal Fluctuations Spectroscopy (TFS) in combination with novel optical-based instrumentation was used to study mechanical properties of cell-cultured neurites with a spatial resolution limited only by the light diffraction. The analysis of thermal fluctuations together with a physical model of cellular elasticity a...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2018.00194
更新日期:2018-07-06 00:00:00
abstract::GABAergic plasticity is recognized as a key mechanism of shaping the activity of the neuronal networks. However, its description is challenging because of numerous neuron-specific mechanisms. In particular, while essential role of glial cells in the excitatory plasticity is well established, their involvement in GABAe...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2017.00144
更新日期:2017-05-16 00:00:00
abstract::Corticotropin-releasing hormone (CRH) plays an important role in a substantial number of patients with stress-related mental disorders, such as anxiety disorders and depression. CRH has been shown to increase neuronal excitability in the hippocampus, but the underlying mechanisms are poorly understood. The effects of ...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2013.00091
更新日期:2013-07-19 00:00:00
abstract::Selective negative allosteric modulators (NAMs), targeting α5 subunit-containing GABAA receptors (GABAARs) as potential therapeutic targets for disorders associated with cognitive deficits, including Alzheimer's disease (AD), continually fail clinical trials. We investigated whether this was due to the change in the e...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2020.568194
更新日期:2020-11-11 00:00:00
abstract::Hippocampal neurogenesis persists throughout adult life and plays an important role in learning and memory. Although the influence of physical exercise on neurogenesis has been intensively studied, there is controversy in regard to how the impact of exercise may vary with its regime. Less is known about how distinct e...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2017.00013
更新日期:2017-01-31 00:00:00
abstract::The phase of firing of hippocampal neurons during theta oscillations encodes spatial information. Moreover, the spike phase response to synaptic inputs in individual cells depends on the expression of the hyperpolarization-activated mixed cation current (I h ), which differs between CA3 and CA1 pyramidal neurons. Here...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2013.00263
更新日期:2013-12-25 00:00:00
abstract::Autism spectrum disorder (ASD) is the most commonly diagnosed neurodevelopmental disorder. Independent of neuronal dysfunction, ASD and its associated comorbidities have been linked to hypomyelination and oligodendroglial dysfunction. Additionally, the neuromodulator adenosine has been shown to affect certain ASD como...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fncel.2018.00482
更新日期:2018-12-07 00:00:00
abstract::Friedreich's Ataxia (FRDA) is an autosomal recessive neurodegenerative disorder, affecting dorsal root ganglia (DRG), cerebellar dentate nuclei and heart. It is caused by a GAA repeat expansion mutation within the frataxin gene (FXN). This impedes FXN transcription resulting in a progressive decrease of the mitochondr...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2018.00188
更新日期:2018-07-17 00:00:00
abstract::The klotho gene family consists of α-, β-, and γ-Klotho, which encode type I single-pass transmembrane proteins with large extracellular domains. α-Klotho exists as a full-length membrane-bound and as a soluble form after cleavage of the extracellular domain. Due to gene splicing, a short extracellular Klotho form can...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2019.00133
更新日期:2019-04-02 00:00:00
abstract::The prefrontal cortex (PFC) plays a central role in executive functions and inhibitory control over many cognitive behaviors. Dynamic changes in local field potentials (LFPs), such as gamma oscillation, have been hypothesized to be important for attentive behaviors and modulated by local interneurons such as parvalbum...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2020.610741
更新日期:2020-11-25 00:00:00
abstract::Autoreactive T cells that infiltrate into the central nervous system (CNS) are believed to have a significant role in mediating the pathology of neuroinflammatory diseases like multiple sclerosis. Their interaction with microglia and astrocytes in the CNS is crucial for the regulation of neuroinflammatory processes. O...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2018.00352
更新日期:2018-10-10 00:00:00
abstract::A major challenge in the development of pharmacotherapies for autism is the failure to identify pathophysiological mechanisms that could be targetable. The majority of developing strategies mainly aim at restoring the brain excitatory/inhibitory imbalance described in autism, by targeting glutamate or GABA receptors. ...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fncel.2020.588662
更新日期:2020-10-30 00:00:00
abstract::Inflammatory cells may contribute to secondary brain injury following cerebral ischemia. The C57Bl/6 mouse strain is known to exhibit a T helper 1-prone, pro-inflammatory type response to injury, whereas the FVB strain is relatively T helper 2-prone, or anti-inflammatory, in its immune response. We tested whether stro...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2014.00365
更新日期:2014-11-19 00:00:00
abstract::Proper communication between neurons depends upon appropriate patterning of dendrites and correct distribution and structure of spines. Schizophrenia is a neuropsychiatric disorder characterized by alterations in dendrite branching and spine density. Nitric oxide synthase 1 adaptor protein (NOS1AP), a risk gene for sc...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2016.00006
更新日期:2016-02-02 00:00:00
abstract::Bone marrow-derived mononuclear cells (BM-MNCs) were shown to improve the outcome in animal stroke models and clinical pilot studies on BM-MNCs for stroke patients were already conducted. However, relevant aspects of pre-clinical evaluation, such as the use of animals with comorbidities and dose-response studies, were...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2013.00288
更新日期:2014-01-08 00:00:00
abstract:PURPOSE:Retinitis pigmentosa includes a group of progressive retinal degenerative diseases that affect the structure and function of photoreceptors. Secondarily to the loss of photoreceptors, there is a reduction in retinal vascularization, which seems to influence the cellular degenerative process. Retinal macroglial ...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2015.00484
更新日期:2015-12-22 00:00:00
abstract::Risk of hemorrhagic transformation, incomplete reperfusion, neurotoxicity, and a short treatment time window comprises major challenges for tissue plasminogen activator (tPA) thrombolytic stroke therapy. Improving tPA therapy has become one of the highest priorities in the stroke field. This mini review article focuse...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fncel.2015.00397
更新日期:2015-10-14 00:00:00
abstract::The Purkinje cell (PC) is among the most complex neurons in the brain and plays a critical role for cerebellar functioning. PCs operate as fast pacemakers modulated by synaptic inputs but can switch from simple spikes to complex bursts and, in some conditions, show bistability. In contrast to original works emphasizin...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2015.00047
更新日期:2015-02-24 00:00:00
abstract::Differentiation and maturation of oligodendroglial cells are postnatal processes that involve specific morphological changes correlated with the expression of stage-specific surface antigens and functional voltage-gated ion channels. A small fraction of oligodendrocyte progenitor cells (OPCs) generated during developm...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fncel.2015.00155
更新日期:2015-04-24 00:00:00
abstract::Genetic anomalies on the JNK pathway confer susceptibility to autism spectrum disorders, schizophrenia, and intellectual disability. The mechanism whereby a gain or loss of function in JNK signaling predisposes to these prevalent dendrite disorders, with associated motor dysfunction, remains unclear. Here we find that...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2014.00272
更新日期:2014-09-12 00:00:00
abstract::Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) are believed to represent the different outcomes of a common pathogenic mechanism. However, while researchers have intensely studied the involvement of motor neurons in the ALS/FTD syndrome, very little is known about the function of hippocampal neu...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2016.00216
更新日期:2016-09-20 00:00:00
abstract::Up to 15 years ago, bibliographic searches based on keywords such as "photoreceptor degeneration, inner retina" or "photoreceptor degeneration, second order neurons" returned only a handful of papers, as the field was dominated by the general assumption that retinal degeneration had direct effects on the sole populati...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fncel.2015.00494
更新日期:2015-12-23 00:00:00
abstract::Tonic GABA type A (GABAA) conductance is a key factor regulating neuronal excitability and computation in neuronal networks. The magnitude of the tonic GABAA conductance depends on the concentration of ambient GABA originating from vesicular and non-vesicular sources and is tightly regulated by GABA uptake. Here we sh...
journal_title:Frontiers in cellular neuroscience
pub_type: 杂志文章
doi:10.3389/fncel.2013.00023
更新日期:2013-03-13 00:00:00