Abstract:
:Diabetic neuropathy (DPN) is one of the most severe and yet most poorly understood complications of diabetes mellitus. In vivo imaging of dorsal root ganglia (DRG), a key structure for the understanding of DPN, has been restricted to animal studies. These have shown a correlation of decreased DRG volume with neuropathic symptom severity. Our objective was to investigate correlations of DRG morphology and signal characteristics at 3 Tesla (3T) magnetic resonance neurography (MRN) with clinical and serological data in diabetic patients with and without DPN. In this cross-sectional study, participants underwent 3T MRN of both L5 DRG using an isotropic 3D T2-weighted, fat-suppressed sequence with subsequent segmentation of DRG volume and analysis of normalized signal properties. Overall, 55 diabetes patients (66 ± 9 years; 32 men; 30 with DPN) took part in this study. DRG volume was smaller in patients with severe DPN when compared to patients with mild or moderate DPN (134.7 ± 21.86 vs 170.1 ± 49.22; p = 0.040). In DPN patients, DRG volume was negatively correlated with the neuropathy disability score (r = -0.43; 95%CI = -0.66 to -0.14; p = 0.02), a measure of neuropathy severity. DRG volume showed negative correlations with triglycerides (r = -0.40; 95%CI = -0.57 to -0.19; p = 0.006), and LDL cholesterol (r = -0.33; 95%CI = -0.51 to -0.11; p = 0.04). There was a strong positive correlation of normalized MR signal intensity (SI) with the neuropathy symptom score in the subgroup of patients with painful DPN (r = 0.80; 95%CI = 0.46 to 0.93; p = 0.005). DRG SI was positively correlated with HbA1c levels (r = 0.30; 95%CI = 0.09 to 0.50; p = 0.03) and the triglyceride/HDL ratio (r = 0.40; 95%CI = 0.19 to 0.57; p = 0.007). In this first in vivo study, we found DRG morphological degeneration and signal increase in correlation with neuropathy severity. This elucidates the potential importance of MR-based DRG assessments in studying structural and functional changes in DPN.
journal_name
Front Neuroscijournal_title
Frontiers in neuroscienceauthors
Jende JME,Kender Z,Rother C,Alvarez-Ramos L,Groener JB,Pham M,Morgenstern J,Oikonomou D,Hahn A,Juerchott A,Kollmer J,Heiland S,Kopf S,Nawroth PP,Bendszus M,Kurz FTdoi
10.3389/fnins.2020.570744subject
Has Abstractpub_date
2020-09-25 00:00:00pages
570744eissn
1662-4548issn
1662-453Xjournal_volume
14pub_type
杂志文章abstract:Purpose:To evaluate the effect of resolution on iron content using quantitative susceptibility mapping (QSM); to verify the consistency of QSM across field strengths and manufacturers in evaluating the iron content of deep gray matter (DGM) of the human brain using subjects from multiple sites; and to establish a susce...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.607705
更新日期:2021-01-06 00:00:00
abstract::The GABAergic neurons in the lateral pontine tegmentum (LPT) play key roles in the regulation of sleep and locomotion. The dysfunction of the LPT is related to neurological disorders such as rapid eye movement sleep behavior disorder and ocular flutter. However, the whole-brain neural connectivity to LPT GABAergic neu...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00375
更新日期:2019-04-24 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::The comprehension of fluent speech in one's native language requires that listeners integrate the detailed acoustic-phonetic information available in the sound signal with linguistic knowledge. This interplay is especially apparent in the phoneme restoration effect, a phenomenon in which a missing phoneme is "restored...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00134
更新日期:2014-06-04 00:00:00
abstract::Sensory information can interact to impact perception and behavior. Foods are appreciated according to their appearance, smell, taste and texture. Athletes and dancers combine visual, auditory, and somatosensory information to coordinate their movements. Under laboratory settings, detection and discrimination are like...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/neuro.01.009.2010
更新日期:2010-05-15 00:00:00
abstract::Alzheimer's disease (AD) is associated with degeneration of cholinergic neurons in the basal forebrain. Administration of the immunotoxin 192IgG-saporin to rats, an animal model of AD, leads to degeneration of cholinergic neurons in the medial septal area. In the present study, cholinergic cell death was induced by in...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00146
更新日期:2019-03-12 00:00:00
abstract::Anesthetized rodent models are ubiquitous in pre-clinical neuroimaging studies. However, because the associated cerebral morphology and experimental methodology results in a profound negative brain-core temperature differential, cerebral temperature changes during functional activation are likely to be principally dri...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00550
更新日期:2018-08-14 00:00:00
abstract::Gambling is a widespread recreational activity and requires pitting the values of potential wins and losses against their probability of occurrence. Neuropsychological research showed that betting behavior on laboratory gambling tasks is highly sensitive to focal lesions to the ventromedial prefrontal cortex (vmPFC) a...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2012.00046
更新日期:2012-04-18 00:00:00
abstract::Atrial fibrillation (AF) is one of the cardiovascular risk factors for dementia. Several longitudinal studies have reported an association between AF and dementia independently of stroke history. Although the mechanisms underlying this association are not fully understood, proposed mechanisms include cerebral hypoperf...
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::Abdominal obesity is important for understanding obesity, which is a worldwide medical problem. We explored structural and functional brain differences in people with abdominal and non-abdominal obesity by using multimodal neuroimaging and up-to-date analysis methods. A total of 274 overweight people, whose body mass ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00741
更新日期:2018-10-11 00:00:00
abstract::The aim of our study was to evaluate the effects of chronic administration of nandrolone-decanoate (ND) or testosterone-enanthate (TE) in supraphysiological doses and a prolonged swimming protocol, alone and in combination with ND or TE, on anxiety-like behavior in rats. We investigated the immunohistochemical alterat...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00172
更新日期:2019-02-26 00:00:00
abstract::We review the role of oscillations in the brain and in the auditory system showing that the ability of humans to distinguish changes in pitch can be explained as a precise analysis of temporal information in auditory signals by neural oscillations. The connections between auditory brain stem chopper neurons construct ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2018.00793
更新日期:2018-10-31 00:00:00
abstract:Purpose:The aim of this study was to explore experiences of upper limb somatosensory discrimination retraining in persons with stroke. Methods:A qualitative methodology was used within the context of a randomized control trial of somatosensory retraining: the CoNNECT trial. Participants in the CoNNECT trial completed ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00756
更新日期:2019-07-24 00:00:00
abstract::Mutations in leucine-rich repeat kinase 2 (LRRK2) instigate an autosomal dominant form of Parkinson's disease (PD). Despite the neuropathological heterogeneity observed in LRRK2-PD, accumulating evidence suggests that alpha-synuclein and tau pathology are observed in a vast majority of cases. Intriguingly, the presenc...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2020.00719
更新日期:2020-07-08 00:00:00
abstract::While brain stimulation techniques have been examined as treatment options for chronic tinnitus for many years, they have recently been extended to multimodal treatment approaches. As chronic tinnitus is often accompanied by comorbid muscular tension in the neck and back, we performed a one-arm pilot study to explore ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00068
更新日期:2018-02-20 00:00:00
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::Obesity continues to be one of the major public health problems due to its high prevalence and co-morbidities. Common co-morbidities not only include cardiometabolic disorders but also mood and cognitive disorders. Obese subjects often show deficits in memory, learning and executive functions compared to normal weight...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2018.00155
更新日期:2018-03-16 00:00:00
abstract::The formation of the six-layered structure of the mammalian cortex via the inside-out pattern of neuronal migration is fundamental to neocortical functions. Extracellular cues such as Reelin induce intracellular signaling cascades through the protein phosphorylation. Migrating neurons also have intrinsic machineries t...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2014.00458
更新日期:2015-01-13 00:00:00
abstract:Background:The peak width of skeletonized mean diffusivity (PSMD) has been proposed as a fully automated imaging marker of relevance to cerebral small vessel disease (SVD). We assessed PSMD in relation to conventional SVD markers, global measures of neurodegeneration, and cognition. Methods:145 participants underwent ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00238
更新日期:2020-03-19 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
更新日期:2020-01-31 00:00:00
abstract::Intracerebral hemorrhage (ICH) is a major type of cerebrovascular disease with poor prognosis. Recent studies have shown that Glycyl-l-histidyl-l-lysine (GHK) is a kind of natural human tripeptide which could inhibit inflammation and against neurodegenerative diseases, but neither its role nor the mechanisms in ICH ha...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.576389
更新日期:2020-10-28 00:00:00
abstract::Neuromorphic systems are gaining increasing importance in an era where CMOS digital computing techniques are reaching physical limits. These silicon systems mimic extremely energy efficient neural computing structures, potentially both for solving engineering applications as well as understanding neural computation. T...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2013.00118
更新日期:2013-09-10 00:00:00
abstract::Ablation of adult neurogenesis in mice has revealed that young adult-born granule cells (abGCs) are required for some of the behavioral responses to antidepressants (ADs), yet the mechanism by which abGCs contribute to AD action remains unknown. During their maturation process, these immature neurons exhibit unique pr...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2016.00242
更新日期:2016-05-31 00:00:00
abstract::To function effectively, brains need to make predictions about their environment based on past experience, i.e., they need to learn about their environment. The algorithms by which learning occurs are of interest to neuroscientists, both in their own right (because they exist in the brain) and as a tool to model parti...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2013.00105
更新日期:2013-06-14 00:00:00
abstract::People with diabetes are more likely to experience sleep disturbance than those without. Sleep disturbance can cause daytime sleepiness in diabetic patients, which may impair their daytime performance or even lead to workplace injuries. Therefore, restoring the normal sleep-wake cycle is critical for diabetic patients...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00969
更新日期:2019-09-20 00:00:00
abstract::Selection of the time-window mainly affects the effectiveness of piecewise feature extraction procedures. We present an enhanced bag-of-patterns representation that allows capturing the higher-level structures of brain dynamics within a wide window range. So, we introduce augmented instance representations with extend...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00155
更新日期:2020-02-25 00:00:00
abstract::Previous studies suggested that both robot-assisted rehabilitation and non-invasive brain stimulation can produce a slight improvement in severe chronic stroke patients. It is still unknown whether their combination can produce synergistic and more consistent improvements. Safety and efficacy of this combination has b...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2016.00088
更新日期:2016-03-08 00:00:00
abstract::Data from animal models and Alzheimer's disease (AD) subjects provide clear evidence for an activation of inflammatory pathways during the pathogenetic course of such illness. Biochemical and neuropathological studies highlighted an important cause/effect relationship between inflammation and AD progression, revealing...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2015.00259
更新日期:2015-07-29 00:00:00
abstract::Several works have demonstrated that visual experience plays a critical role in the development of allocentric spatial coding. Indeed, while children with a typical development start to code space by relying on allocentric landmarks from the first year of life, blind children remain anchored to an egocentric perspecti...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00565
更新日期:2020-06-16 00:00:00
abstract::Calcium imaging using fluorescent reporters is the most widely used optical approach to investigate activity in intact neuronal circuits with single-cell resolution. Calcium signals, however, are often difficult to interpret, especially if the desired output quantity is membrane voltage or instantaneous firing rates. ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/neuro.01.032.2008
更新日期:2008-12-15 00:00:00