Abstract:
:The structure of gene coexpression networks reflects the activation and interaction of multiple cellular systems. Since the pathology of neuropsychiatric disorders is influenced by diverse cellular systems and pathways, we investigated gene coexpression networks in major depression, and searched for putative unifying themes in network connectivity across neuropsychiatric disorders. Specifically, based on the prevalence of the lethality–centrality relationship in disease-related networks, we hypothesized that network changes between control and major depression-related networks would be centered around coexpression hubs, and secondly, that differentially expressed (DE) genes would have a characteristic position and connectivity level in those networks. Mathematically, the first hypothesis tests the relationship of differential coexpression to network connectivity, while the second “hybrid” expression-and-network hypothesis tests the relationship of differential expression to network connectivity. To answer these questions about the potential interaction of coexpression network structure with differential expression, we utilized all available human post-mortem depression-related datasets appropriate for coexpression analysis, which spanned different microarray platforms, cohorts, and brain regions. Similar studies were also performed in an animal model of depression and in schizophrenia and bipolar disorder microarray datasets. We now provide results which consistently support (1) that genes assemble into small-world and scale-free networks in control subjects, (2) that this efficient network topology is largely resilient to changes in depressed subjects, and (3) that DE genes are positioned on the periphery of coexpression networks. Similar results were observed in a mouse model of depression, and in selected bipolar- and schizophrenia-related networks. Finally, we show that baseline expression variability contributes to the propensity of genes to be network hubs and/or to be DE in disease. In summary, our results suggest that the small-world and scale-free properties of gene networks are resilient to pathological changes in major depression, and that the network structure may constrain the extent to which a gene may be DE in the illness, hence informing further gene-network-based mechanistic studies of neuropsychiatric disorders.
journal_name
Front Neuroscijournal_title
Frontiers in neuroscienceauthors
Gaiteri C,Sibille Edoi
10.3389/fnins.2011.00095subject
Has Abstractpub_date
2011-08-30 00:00:00pages
95eissn
1662-4548issn
1662-453Xjournal_volume
5pub_type
杂志文章abstract:Background:A number of mental illness is often re-diagnosed to be bipolar disorder (BD). Furthermore, the prefronto-limbic-striatal regions seem to be associated with the main dysconnectivity of BD. Functional connectivity is potentially an appropriate objective neurobiological marker that can assist with BD diagnosis....
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.563368
更新日期:2020-10-20 00:00:00
abstract::Resting-state functional connectivity (RSFC) has been generally assessed with functional magnetic resonance imaging (fMRI) thanks to its high spatial resolution. However, fMRI has several disadvantages such as high cost and low portability. In addition, fMRI may not be appropriate for people with metal or electronic i...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00032
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abstract::It has long been suggested that sound plays a role in the postural control process. Few studies however have explored sound and posture interactions. The present paper focuses on the specific impact of audition on posture, seeking to determine the attributes of sound that may be useful for postural purposes. We invest...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in neuroscience
pub_type: 杂志文章
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更新日期:2018-10-23 00:00:00
abstract::In the event-related potential (ERP) of scalp electroencephalography (EEG) studies, the vertex reference (Cz), linked mastoids or ears (LM), and average reference (AVG) are popular reference methods, and the reference electrode standardization technique (REST) is increasingly applied. Because scalp EEG recordings are ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.01068
更新日期:2019-10-11 00:00:00
abstract::Brain-derived neurotrophic factor (BDNF) is a potent regulator of neuronal development and synaptic plasticity that is fundamental to neural circuit formation and cognition. It is also involved in the control of appetite and body weight, with mutations in the genes for BDNF and its receptor, TrkB, resulting in remarka...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2013.00037
更新日期:2013-03-21 00:00:00
abstract::Orexins (also known as hypocretins) play critical roles in the regulation of sleep/wakefulness states by activating two G-protein coupled receptors (GPCRs), orexin 1 (OX1R) and orexin 2 receptors (OX2R). In order to understand the differential contribution of both receptors in regulating sleep/wakefulness states we co...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00008
更新日期:2014-01-31 00:00:00
abstract::The autonomic nervous system (ANS) has a significant influence on the structural integrity and electrical conductivity of the atria. Aberrant activation of the sympathetic nervous system can induce heterogeneous changes with arrhythmogenic potential which can result in atrial tachycardia, atrial tachyarrhythmias and a...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2018.01058
更新日期:2019-01-23 00:00:00
abstract::Roughly one-third of the human lifetime is spent in sleep, yet the reason for sleep remains unclear. Understanding the physiologic function of sleep is crucial toward establishing optimal health. Several proposed concepts address different aspects of sleep physiology, including humoral and circuit-based theories of sl...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2019.00740
更新日期:2019-07-17 00:00:00
abstract::We hypothesized that assessment of brain connectivity may shed light on the underpinnings of ocular hypertension (OHT), characterized by raised intraocular pressure (IOP) and no typical glaucomatous findings. OHT carries a risk for future glaucoma development, thus representing a model of presymptomatic condition. In ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00146
更新日期:2020-03-05 00:00:00
abstract::Musicians have considerable experience naming pitch-classes with verbal (e.g., Doh, Ré, and Mi) and semiotic tags (e.g., musical notation). On the one end of the spectrum, musicians can identify the pitch of a piano tone or quality of a chord without a reference tone [i.e., absolute pitch (AP) or relative pitch], whic...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00932
更新日期:2019-09-06 00:00:00
abstract::Attention and working memory (WM) are core components of executive functions, and they can be enhanced by training. One activity that has shown to improve executive functions is musical training, but the brain networks underlying these improvements are not well known. We aimed to identify, using functional MRI (fMRI),...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.554731
更新日期:2020-10-08 00:00:00
abstract::Background: Stress-induced cellular changes in limbic brain structures contribute to the development of various psychopathologies. In vivo detection of these microstructural changes may help us to develop objective biomarkers for psychiatric disorders. Diffusion tensor imaging (DTI) is an advanced neuroimaging techniq...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00474
更新日期:2020-06-03 00:00:00
abstract:Introduction:Optical coherence tomography angiography (OCT-A) is a novel diagnostic tool with increasing applications in ophthalmology clinics that provides non-invasive high-resolution imaging of the retinal microvasculature. Our aim is to report in detail an experimental protocol for analyzing both vasodilatory and v...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00566
更新日期:2019-06-12 00:00:00
abstract::The recently renewed focus on the human exploration of outer space has boosted the interest toward a variety of questions regarding health of astronauts and cosmonauts. Among the others, sleep has traditionally been considered a central issue. To extend the research chances, human sleep alterations have been investiga...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2020.00851
更新日期:2020-08-11 00:00:00
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journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2019.00018
更新日期:2019-01-31 00:00:00
abstract::Silver nano-particles (Ag-NPs) are becoming increasingly prevalent in consumer products as antibacterial agents. The increased use of Ag NP-enhanced products will almost certainly increase environmental silver levels, resulting in increased exposures and the potential for increased adverse reactions including neurotox...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2015.00115
更新日期:2015-04-08 00:00:00
abstract::Growing evidence indicates that neuropathic pain is frequently accompanied by cognitive impairments, which aggravate the quality of life of chronic pain patients. Here, we investigated whether acupuncture treatments can improve cognitive dysfunction as well as allodynia induced by neuropathic pain in mice. One week af...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00995
更新日期:2019-09-20 00:00:00
abstract::Obesity is known to induce leptin and insulin resistance. Leptin is a peptide hormone synthesized in adipose tissue that mainly regulates food intake. It has been shown that insulin stimulates the production of leptin when adipocytes are exposed to glucose to encourage satiety; while leptin, via a negative feedback, d...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00508
更新日期:2019-05-22 00:00:00
abstract:Objectives:Acute sleep deprivation (SD) seriously affects cognitive functions, such as attention, memory, and response inhibition. Previous neuroimaging studies have demonstrated a close relationship between the functional activities of the precuneus (PC) and the function of alert attention. However, the specific effec...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.530257
更新日期:2020-12-21 00:00:00
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journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2015.00255
更新日期:2015-07-23 00:00:00
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journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00153
更新日期:2020-02-27 00:00:00
abstract::Antipsychotic drugs (APDs) are widely prescribed to control various mental disorders. As mental disorders are chronic diseases, these drugs are often used over a life-time. However, APDs can cause serious glucometabolic side-effects including type 2 diabetes and hyperglycaemic emergency, leading to medication non-comp...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2017.00643
更新日期:2017-11-21 00:00:00
abstract::In functional MRI (fMRI), population receptive field (pRF) models allow a quantitative description of the response as a function of the features of the stimuli that are relevant for each voxel. The most popular pRF model used in fMRI assumes a Gaussian shape in the features space (e.g., the visual field) reducing the ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00825
更新日期:2020-07-30 00:00:00
abstract::Identifying the multiple contributors to the audiometric loss of a hearing impaired (HI) listener at a particular frequency is becoming gradually more useful as new treatments are developed. Here, we infer the contribution of inner (IHC) and outer hair cell (OHC) dysfunction to the total audiometric loss in a sample o...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00214
更新日期:2014-07-23 00:00:00
abstract::Anorexia nervosa (AN) has the highest mortality rate of any psychiatric disease, yet available pharmacological treatments are largely ineffective due, in part, to an inadequate understanding of the neurobiological drivers that underpin the condition. The recent resurgence of research into the clinical applications of ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2020.00043
更新日期:2020-02-04 00:00:00
abstract::Although the interplay between endogenous opioids and dopamine (DA) in the basal ganglia (BG) is known to underlie diverse motor functions, few studies exist on their role in modulating speech and vocalization. Vocal impairment is a common symptom of Parkinson's disease (PD), wherein DA depletion affects striosomes ri...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00671
更新日期:2019-07-03 00:00:00
abstract::Many of the precise biological mechanisms of synaptic plasticity remain elusive, but simulations of neural networks have greatly enhanced our understanding of how specific global functions arise from the massively parallel computation of neurons and local Hebbian or spike-timing dependent plasticity rules. For simulat...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00429
更新日期:2015-01-20 00:00:00
abstract::In contrast to mammals, the adult zebrafish brain shows neurogenic activity in a multitude of niches present in almost all brain subdivisions. Irrespectively, constitutive neurogenesis in the adult zebrafish and mouse telencephalon share many similarities at the cellular and molecular level. However, upon injury durin...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2020.568930
更新日期:2020-09-23 00:00:00
abstract::Novel therapeutic approaches for treating inherited retinal degenerations (IRDs) prompt a need to understand which patients with impaired vision have the anatomical potential to gain from participation in a clinical trial. We used supervised machine learning to predict foveal function from foveal structure in blue con...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00800
更新日期:2020-08-03 00:00:00