Abstract:
:Deep brain stimulation (DBS) is associated with substantial improvements in motor symptoms of PD. Emerging evidence has suggested that nonlinear measures of complexity may provide greater insight into the efficacy of anti-PD treatments. This study investigated sample entropy and complexity index values in individuals with PD when DBS was OFF compared to ON. Five individuals with PD using DBS performed a four-minute treadmill walking task while 3D kinematics were collected over two periods of 30 s. Participants were tested in the DBS-ON and DBS-OFF conditions. Sample entropy (SE) and complexity index (CI) values were calculated for ankle, knee and hip joint angles. Paired samples t-tests were used to compare mean SE and CI values between the DBS-OFF and DBS-ON conditions, respectively. No differences in SE or CI were observed between the DBS-ON and DBS-OFF conditions at the ankle. At the knee, the DBS-ON was associated with greater SE and CI values than the DBS-OFF condition. At the hip, DBS-ON was associated with greater SE and CI values than the DBS-OFF condition. DBS enhances complexity of movement at the hip and knee joints while complexity at the ankle joint is not significantly altered. Greater complexity of knee and hip joint motion may represent increased adaptability and a greater number of available strategies to complete the gait task.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Powell DW,Blackmore SE,Puppa M,Lester D,Murray NG,Reed-Jones RJ,Xia RPdoi
10.1016/j.neulet.2018.05.010subject
Has Abstractpub_date
2020-05-29 00:00:00pages
133588eissn
0304-3940issn
1872-7972pii
S0304-3940(18)30337-9journal_volume
728pub_type
杂志文章abstract::This study aimed to investigate the cross-modal association of an "abstract symbol," designed for representation of an odor, with its corresponding odor. First, to explore the associations of abstract symbols with odors, participants were asked to match 8 odors with 19 different abstract symbols (Experiment 1). Next, ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.05.011
更新日期:2010-07-12 00:00:00
abstract::The expression of dystrophin-protein 71 (Dp71) was investigated during nerve growth factor (NGF) induced differentiation of PC12 cells. A semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) assay was designed to measure Dp71 mRNA, whereas the Dp71 protein amount was evaluated by immunoblot analy...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(96)12863-9
更新日期:1996-08-02 00:00:00
abstract::As noted in the aging literature, processing delays often occur in the central nervous system with increasing age, which is often attributable in part to demyelination. In addition, differential slowing between sensory systems has been shown to be most discrepant between visual (up to 20ms) and auditory systems (<5ms)...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.08.023
更新日期:2010-10-22 00:00:00
abstract::Cystathionine beta synthase (CBS) is the main contributor to the production of hydrogen sulfide (H2S) in the brain. Exogenously administered H2S has been reported to protect neurons against hypoxic injury, ischemia and LPS-induced neuro-inflammation and in the facilitating of long term potentiation (LTP). Dysregulatio...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.01.049
更新日期:2014-03-20 00:00:00
abstract::Immediate post-training intraperitoneal administration of the centrally acting anticholinesterase physostigmine (70.0, or 150.0 microg/kg) enhanced retention of male CF-1 mice tested 48 h after training in a one-trial step-through inhibitory avoidance task (0.8 mA, 50 Hz, 1 s footshock). The effect was observed in mic...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(03)00493-2
更新日期:2003-07-17 00:00:00
abstract::Lead is a neurotoxicant of immense public health importance. Epidemiology studies suggest that heavy metal exposure may be associated with an increased risk of cognitive decline, yet few studies to date have assessed the effect of adult lead exposure on cognitive behavior in animal models. Here, we exposed 6-week-old ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2017.09.060
更新日期:2017-11-20 00:00:00
abstract::The adult hagfish, Myxine glutinosa, does not exhibit a lateral line system. The hypodermal layer of the dorsal head and body skin contains a prominent receptor system--lamellated corpuscles--arranged in a segmental pattern close to the body fascia. The topography and the structural organization of the lamellated rece...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90049-q
更新日期:1993-03-05 00:00:00
abstract::It has been known that ethanol causes neuronal cell death through oxidative stress. Ethanol itself and reactive oxygen species (ROS) produced by ethanol modulate intracellular signaling pathways including mitogen-activated protein kinase (MAPK) cascades. This study was conducted to examine the impact of ethanol on MAP...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.03.049
更新日期:2007-05-23 00:00:00
abstract::A large dose of carbachol (5 micrograms/0.5 microliters) unilaterally microinjected into the rostral substantia nigra of rats induced stereotypy characterized by biting, gnawing and licking. A lower dose (0.5 micrograms/0.5 microliter) of the cholinomimetic potentiated normal food intake in satiated animals. Both the ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(80)90174-3
更新日期:1980-12-01 00:00:00
abstract::Tritiated dipyridamole, a specific adenosine uptake inhibitor binds in a saturable and reversible fashion to high-affinity receptor sites in guinea pig brain sections (Kd = 10 +/- 1.5 nM; Bmax = 650 +/- 100 fmol/mg prot.). The anatomical distribution of [3H]dipyridamole binding sites obtained with autoradiographic tec...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(86)90043-1
更新日期:1986-05-23 00:00:00
abstract::Human amniotic epithelial (HAE) cells have been used for allotransplantation in patients with lysosomal storage disease due to lack of expression of HLA antigens. Previously, we have reported the expression of differentiation markers for both neural stem cells, and neuron and glial cells. In the present study, we inve...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00570-3
更新日期:1997-08-22 00:00:00
abstract::Conduction velocities of antidromically evoked impulses along the goldfish Mauthner axon were found to be inversely correlated with body length. To test the hypothesis that such a relation is accompanied by a reduction in axonal diameter with increasing fish size, Mauthner axon diameters were measured. A parabolic rel...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(81)90261-5
更新日期:1981-12-11 00:00:00
abstract::Temporal patterns of inflammatory cytokine levels reflect the immune-inflammatory role in pathogenic mechanisms of SOD1 animal model of Amyotrophic Lateral Sclerosis (ALS) and these cytokines have important roles in both toxic and protective functions depending on the stage of disease progression in ALS patients. Eryt...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.05.001
更新日期:2014-06-27 00:00:00
abstract::4-Methylamphetamine (4-MA) has recently emerged as a designer drug of abuse in Europe and it is consumed always with amphetamine. There have been reported some deaths and non-fatal intoxications related to 4-MA. We investigated the changes in locomotor activity and body temperature after 4-MA administration to male Sp...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2015.01.075
更新日期:2015-03-17 00:00:00
abstract::Cocaine administration has been shown to affect several sites in the limbic forebrain. The nucleus accumbens has been implicated as an important site for the reinforcing aspects of this drug whereas, the amygdala and hippocampus may be more involved in drug conditioning and/or drug induced changes in the perception of...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90903-x
更新日期:1993-09-17 00:00:00
abstract::Alpha-2 macroglobulin (A2M) is a serum pan-protease inhibitor that is related with the pathogenesis of Alzheimer's disease (AD) through its ability to mediate amyloid beta degradation. Recently, it has been reported that the I1000V polymorphism in A2M gene might increase the risk of AD. In the present study, we invest...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01330-6
更新日期:2000-08-25 00:00:00
abstract::To test the hypothesis that the distribution of the pathology in variant Creutzfeldt-Jakob disease (vCJD) represents haematogenous spread of the disease, we studied the spatial correlation between the vacuolation, prion protein (PrP) deposits, and the blood vessel profiles in the cerebral cortex, hippocampus, dentate ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(03)00696-7
更新日期:2003-09-04 00:00:00
abstract::The idiopathic scoliosis is characterized by a three-dimensional spinal deformity involving new dynamical strategies to regulate the posture. The aim is to analyze the centre of pressure (CP) behaviour in forward stepping (FS) and lateral stepping (LS) to determine the dynamical consequences of scoliosis. Ten adolesce...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.10.007
更新日期:2008-12-12 00:00:00
abstract::The effect of chlorpromazine (CPZ) on deactivation of N-methyl-D-aspartate (NMDA)-induced currents was studied in the whole-cell configuration of the patch-clamp technique in cultured rat hippocampal neurons. We report that CPZ (at 30-1000 microM) strongly slowed down the deactivation process in a dose-dependent manne...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)02245-5
更新日期:2001-11-23 00:00:00
abstract::To investigate whether any specific requirement for extracellular Ca2+ exists in the control synaptic vesicle retrieval, we examined the ability of the divalent cation Ba2+ to substitute for Ca2+ in both vesicle exocytosis and endocytosis. Ba2+ stimulated glutamate release from rat cerebrocortical synaptosomes. Ba2+-e...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(98)00610-7
更新日期:1998-08-28 00:00:00
abstract::We investigated the role of local cutaneous signals and of co-contraction of antagonists in repeated judgements of heaviness of weights lifted by flexor pollicis longus. A reference weight lifted by right thumb flexion was matched to a weight lifted by left thumb flexion. Anaesthesia of the right thumb, or of the supe...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(95)12179-x
更新日期:1995-12-15 00:00:00
abstract::In vivo electrochemical techniques were employed to demonstrate that repeated treatment with classical antipsychotic drugs reduced basal dopamine (DA) release in the striatum and nucleus accumbens, whereas repeated treatment with atypical antipsychotics decreased DA release only in accumbens. Administration of apomorp...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(87)90633-1
更新日期:1987-07-22 00:00:00
abstract::Quantitative neurophysiological studies have identified the presence of at least two spinal neuron populations (ABRUPT and SUSTAINED) which are excited by the noxious visceral stimulus colorectal distension (CRD). The present study examined the effects of acute colorectal inflammation on the activity of dorsal horn ne...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)00832-6
更新日期:2000-03-10 00:00:00
abstract::Parkinson's disease (PD) is the second most frequent neurodegenerative disorder. It is characterized by selective degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNpc). Early-onset familial forms of PD are associated with mutations in several genes, including parkin, pink1 and dj-1. DJ-1 en...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2015.07.032
更新日期:2015-08-31 00:00:00
abstract::To assess cortical activity during pain perception, regional cerebral blood flow (rCBF) studies were done in humans using single photon emission computed tomography (SPECT) with the radiotracer Tc99m-HMPAO and magnetic resonance imaging localization. Normalized SPECT data were analyzed by region of interest and change...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(92)90088-o
更新日期:1992-06-22 00:00:00
abstract::Generalized epilepsy with febrile seizures plus (GEFS(+)) is a common familial epilepsy syndrome, which generally develops in childhood. GEFS(+) is caused by mutations in the sodium-channel α1-subunit (SCN1A). In this report, we investigated a Chinese family with an autosomal dominant form of GEFS(+). The affected GEF...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2011.08.001
更新日期:2011-09-26 00:00:00
abstract::Hypoxic preconditioning (HP) is a novel strategy to make stem cells resistant to the ischemic environment they encounter after transplantation into injured tissue; this strategy improves survival of both the transplanted cells and the host cells at the injury site. Using both in vitro and in vivo injury models, we con...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.02.008
更新日期:2010-03-26 00:00:00
abstract::The purpose of this study was to characterize the neuromuscular control during shortening (SHO) and lengthening (LEN) contractions by investigating the input-output (I/O) property in the corticospinal tract. To this end, the relation between various stimulus intensities applied via transcranial magnetic stimulation an...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)02197-8
更新日期:2001-10-19 00:00:00
abstract::A culture of peripheral nerve cells enriched in Schwann cells was obtained from sciatic nerve in normal and demyelinating trembler mutant. These cells incorporated and metabolized a non-physiological trans fatty acid (elaidic aid) as well as the physiological cis isomer (oleic acid). Both acids were incorporated simil...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(82)90292-0
更新日期:1982-05-28 00:00:00
abstract::Spinal cord injury (SCI) causes an increase of inhibitory factors that may restrict axonal outgrowth after trauma. During the past decade, the Eph receptors and ephrin ligands have emerged as key repulsive cues known to be involved in neurite outgrowth, synapse formation, and axonal pathfinding during development. Giv...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.03.015
更新日期:2007-05-11 00:00:00