Abstract：
:Parkinson's disease (PD) is characterized by a dramatic loss of dopamine that underlies complex structural and functional changes in striatal projection neurons. A key alteration that has been reported in various rodent models and PD patients is a significant reduction in striatal dendritic spine density. Our recent findings indicate that striatal spine loss is also a prominent feature of parkinsonism in MPTP-treated monkeys. In these animals, striatal spine plasticity is tightly linked with the degree of striatal dopamine denervation. It affects predominantly the sensorimotor striatal territory (i.e. the post-commissural putamen) and targets both direct and indirect striatofugal neurons. However, electron microscopic 3D reconstruction studies demonstrate that the remaining spines in the dopamine-denervated striatum of parkinsonian monkeys undergo major morphological and ultrastructural changes characteristic of increased synaptic efficacy. Although both corticostriatal and thalamostriatal glutamatergic afferents display such plastic changes, the ultrastructural features of pre- and post-synaptic elements at these synapses are consistent with a higher strength of corticostriatal synapses over thalamic inputs in both normal and pathological conditions. Thus, striatal projection neurons and their glutamatergic afferents are endowed with a high degree of structural and functional plasticity. In parkinsonism, the striatal dopamine denervation induces major spine loss on medium spiny neurons and generates a significant remodeling of corticostriatal and thalamostriatal glutamatergic synapses, consistent with increased synaptic transmission. Future studies are needed to further characterize the mechanisms underlying striatal spine plasticity, and determine if it represents a pathological feature or compensatory process of PD.
journal_name
Parkinsonism Relat Disordjournal_title
Parkinsonism & related disordersauthors
Smith Y,Villalba RM,Raju DVdoi
10.1016/S1353-8020(09)70805-3subject
Has Abstractpub_date
2009-12-01 00:00:00pages
S156-61eissn
1353-8020issn
1873-5126pii
S1353-8020(09)70805-3journal_volume
15 Suppl 3pub_type
杂志文章abstract：BACKGROUND:Transcranial B-mode sonography (TCS) has become an important tool in the differential diagnosis of parkinsonism given that current technology enables an adequate assessment of brain structures. In this study we aimed at evaluating the usefulness of midbrain area measured by TCS in the differential diagnosis ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,多中心研究
doi：10.1016/j.parkreldis.2013.04.010
更新日期：2013-08-01 00:00:00
abstract：BACKGROUND:Somatosensory abnormalities contribute to the pathophysiology of Parkinson's disease (PD). The goal of this study was to identify abnormalities in the tactile-evoked activation of the somatosensory and motor cortices in PD, and in a sensorimotor circuit that traverses both of these cortical loci. The second ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2018.05.002
更新日期：2018-08-01 00:00:00
abstract：:Excessive daytime sleepiness (EDS) is common in Parkinson's Disease (PD). Actigraphy uses periods of immobility as surrogate markers of nighttime sleep but there are no examples of its use in assessing EDS of PD. A commercial wrist worn system for measuring bradykinesia and dyskinesia also detects 2 min periods of imm...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2014.02.011
更新日期：2014-06-01 00:00:00
abstract：:We evaluated an association between essential tremor (ET) and the Parkinson's disease (PD) genes, Leucine Rich Repeat Kinase 2 (LRRK2) and Glucocerebrosidase (GBA). Clinical studies demonstrate an association between ET and PD, suggesting possible shared pathophysiologies, yet LRRK2 has rarely been studied in ET, and ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2009.05.008
更新日期：2010-02-01 00:00:00
abstract：:Myoclonus-dystonia is an early onset genetic disorder characterised by subcortical myoclonus and less prominent dystonia. Its primary causative gene is the epsilon-sarcoglycan gene but the syndrome of "myoclonic dystonia" has been shown to be a heterogeneous group of genetic disorders. The underlying pathophysiology o...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/j.parkreldis.2020.06.016
更新日期：2020-08-01 00:00:00
abstract：:The neuroanatomic substrate for restless legs syndrome (RLS) is not known. We implanted deep brain stimulators into the ventralis intermedius nucleus (VIM) of the thalamus in nine subjects for essential tremor (ET) whom all concurrently had RLS. Although the VIM DBS improved tremor, none of the subjects felt there was...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2004.10.015
更新日期：2006-03-01 00:00:00
abstract：OBJECTIVES:To report the results of a national survey aimed at quantifying the current level of diffusion of Levodopa/carbidopa intestinal gel (LCIG) in Italy. METHODS:Sixty Parkinson's Disease (PD) specialists in Italy were invited to complete a survey covering issues on clinical and practical aspects of LCIG therapy...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,多中心研究
doi：10.1016/j.parkreldis.2017.02.020
更新日期：2017-05-01 00:00:00
abstract：:Tardive syndromes (TS) encompass a broad spectrum of abnormal movements due to chronic exposure to dopamine receptor blocking agents. This review provides a compiled update on TS, including phenomenology, epidemiology, pathophysiology, genetic correlations and therapeutics, highlighting the emerging experience with at...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/S1353-8020(13)70028-2
更新日期：2014-01-01 00:00:00
abstract：INTRODUCTION:Orexin is a neuropeptide that plays a key role in maintaining a state of arousal, and possibly associates with sleep apnea syndrome (SAS). Reduced orexin immunoreactivity has been reported in various neurologic conditions such as narcolepsy, Alzheimer's disease, Lewy body disease and multiple system atroph...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2017.06.003
更新日期：2017-09-01 00:00:00
abstract：OBJECTIVE:To investigate the indications and the outcomes of gastrostomy tube insertion in patients with parkinsonian syndromes. METHODS:Consecutive patients with Parkinson's disease or atypical parkinsonism, seen in two French tertiary referral movement disorders centers, that received gastrostomy tube insertion (GTI...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2017.06.012
更新日期：2017-10-01 00:00:00
abstract：BACKGROUND:Oxidative stress is causally associated with the pathogenesis of Parkinson's disease (PD). Oxygen generates a large amount of reactive oxygen species (ROS). ROS including hydroxyl radicals and H(2)O(2) react with guanine residues in DNA and produce 8-hydroxydeoxyguanosine (8-OHdG). 8-OHdG serves as a biomark...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2010.11.004
更新日期：2011-01-01 00:00:00
abstract：INTRODUCTION:Cognitive impairment and dementia are highly prevalent non-motor complications in Parkinson's disease (PD) with deleterious consequences for patients and caregivers. With no treatment currently available, finding and validating minimally-invasive biomarkers of neurodegeneration in this population represent...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2020.04.009
更新日期：2020-05-01 00:00:00
abstract：OBJECTIVES:To investigate the frequency and the different types of psychiatric disturbances in PSP patients using validated psychiatric instruments. METHODS:We conducted a case-control study using the Structured Clinical Interview (SCID-I) for DSM-IV to investigate psychiatric disorders in 28 PSP patients and 28 age a...
journal_title：Parkinsonism & related disorders
pub_type： 临床试验,杂志文章
doi：10.1016/j.parkreldis.2014.05.015
更新日期：2014-09-01 00:00:00
abstract：:Parkinson disease (PD) reduces health-related quality of life (HRQoL), but exercise may improve HRQoL. This pilot study compared the effects of Tango, Waltz/Foxtrot, Tai Chi and No Intervention on HRQoL in individuals with PD. Seventy-five persons with PD (Hoehn and Yahr I-III) were assigned to 20 lessons of Tango, Wa...
journal_title：Parkinsonism & related disorders
pub_type： 临床试验,杂志文章
doi：10.1016/j.parkreldis.2009.03.003
更新日期：2009-11-01 00:00:00
abstract：UNLABELLED:Transcranial magnetic resonance imaging-guided focused ultrasound (tcMRgFUS) is a novel technique to supplement the spectrum of established neurosurgical interventions. In contrast to traditional ablative procedures, tcMRgFUS is noninvasive and entirely imaging-guided with continuous temperature measurements...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/S1353-8020(13)70046-4
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:Limited data currently exists within the UK addressing the level of Parkinson's disease (PD) healthcare provision. We investigated whether care for PD patients in a UK community met national guidelines, and the determinants of sub-optimal care for this patient group. METHODS:340 PD patients were identified ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2010.12.012
更新日期：2011-03-01 00:00:00
abstract：:Clinical symptoms in Parkinson's disease (PD) comprise both motor and non-motor symptoms. In this disease, synucleinopathic-induced, nigral dopamine deficiency-related dysfunction of the basal ganglia is held responsible for the characteristic levodopa-responsive motor signs and symptoms (bradykinesia, hypokinesia, ri...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/S1353-8020(09)70770-9
更新日期：2009-12-01 00:00:00
abstract：:Today's society is changing rapidly and individuals increasingly favor an active role in designing their own lives. Contemporary patients are no exception, but the present health care system-which is organized primarily from the provider's perspective-is not yet prepared for this development. Here, we argue that an al...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/j.parkreldis.2013.04.022
更新日期：2013-11-01 00:00:00
abstract：:Some procedures, such as deep inspiration, increase sweat output (SSwR; sympathetic sweat response) and reduce cutaneous blood flow (SVR; skin vasomotor reflex) on the palm. We investigated SSwR, SVR, and cardiovascular function in 12 patients with progressive supranuclear palsy (PSP), 13 patients with Parkinson's dis...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/s1353-8020(03)00109-3
更新日期：2003-12-01 00:00:00
abstract：OBJECTIVE:To evaluate the efficacy of solifenacin succinate in Parkinson's disease (PD) patients suffering from overactive bladder (OAB). BACKGROUND:Urinary dysfunction is a commonly encountered non-motor feature in PD that significantly impacts patient quality of life. DESIGN/METHODS:This was a double-blind, randomi...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.parkreldis.2015.02.025
更新日期：2015-05-01 00:00:00
abstract：:Most patients with tremor-dominant Parkinson's disease (PD) have impaired smell function but it is unclear whether this is true for subjects with essential tremor (ET). If ET patients do not exhibit meaningful smell loss, then olfactory testing may help to distinguish PD from ET. We assessed olfactory function in 59 E...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2007.12.006
更新日期：2008-11-01 00:00:00
abstract：INTRODUCTION:Two phase3 studies (SP512; SP513) involving mostly Caucasian patients showed that rotigotine (≤8 mg/24 h) was efficacious and welltolerated in early-stage Parkinson's disease (PD). We report results from a phase 3 study (SP0914/NCT01646268) investigating rotigotine in Chinese patients with early-stage PD. ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.parkreldis.2016.04.022
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:Deep brain stimulation of the subthalamic nucleus (STN-DBS) reduces motor fluctuations in Parkinson's disease (PD) but its effect on non-motor fluctuations (NMF) is not well known. In this study we assess the efficacy of STN-DBS on NMF two years after surgery. METHODS:Autonomic, cognitive, psychiatric and s...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2013.02.001
更新日期：2013-05-01 00:00:00
abstract：:We evaluated the diagnostic accuracy of SPECT imaging using [(99m)Tc]TRODAT-1 (TRODAT), a relatively inexpensive technetium-labeled dopamine transporter ligand, in distinguishing 29 patients with early PD from 38 healthy volunteers. Mean TRODAT uptake values were significantly decreased in the caudate (p=0.0097) and a...
journal_title：Parkinsonism & related disorders
pub_type： 临床试验,杂志文章
doi：10.1016/j.parkreldis.2004.04.002
更新日期：2004-08-01 00:00:00
abstract：BACKGROUND:The prevalence and clinical correlates of drooling in Chinese patients with Parkinson disease (PD) are unknown. METHODS:A cross-sectional analysis of 518 Chinese patients with PD was conducted. Assessments included Unified PD Rating Scale (UPDRS), Non-Motor Symptoms Scale (NMSS), Hamilton Depression Scale (...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2014.12.004
更新日期：2015-03-01 00:00:00
abstract：:Approximately 10% of patients with a presumed diagnosis of Parkinson's disease (PD) remain misdiagnosed despite recent advances in neuroimaging. The current study addresses the use of transcranial sonography and single-photon emission computed tomography (SPECT) using (99m)Tc-TRODAT-1 to evaluate the echogenicity of t...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2014.01.015
更新日期：2014-05-01 00:00:00
abstract：INTRODUCTION:PLA2G6-associated neurodegeneration (PLAN) comprises a continuum of three phenotypes with overlapping clinical and radiologic features. METHODS:Observational clinical study in a cohort of infantile and childhood onset PLAN patients and genetic analysis of the PLA2G6 gene. We analysed chronological evoluti...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,多中心研究
doi：10.1016/j.parkreldis.2018.10.013
更新日期：2019-04-01 00:00:00
abstract：OBJECTIVE:Mutations in the GBA gene are associated with Parkinson's disease (PD). A definite description of the clinical characteristics of PD patients who are compound heterozygotes or homozygotes for mutations in the GBA gene (GD-PD) requires further elucidation. METHODS:We assessed motor, cognitive, olfactory and a...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2016.12.014
更新日期：2017-03-01 00:00:00
abstract：INTRODUCTION:There is currently no definitive diagnostic test for Parkinson's disease (PD) and the current diagnostic procedure primarily relies on clinical manifestations. A hypointense appearance of nigrosome-1 (or absence of the "swallow tail" sign) on magnetic resonance imaging (MRI) has been proposed as a biomarke...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/j.parkreldis.2020.07.002
更新日期：2020-09-01 00:00:00
abstract：INTRODUCTION:Camptocormia is defined as an involuntary, marked flexion of the thoracolumbar spine appearing during standing or walking and resolving in the supine position or when leaning against a wall. However, there is no established agreement on the minimum degree of forward flexion needed to diagnose camptocormia....
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2018.04.033
更新日期：2018-08-01 00:00:00
