Abstract：
INTRODUCTION:Cerebellar circuits are hypothesized to play a central role in the pathogenesis of essential tremor. Rhythmic finger tapping is known to strongly engage the cerebellar motor circuitry. We characterize cerebellar and, more specifically, dentate nucleus function, and neural correlates of cerebellar output in essential tremor during rhythmic finger tapping employing functional MRI. METHODS:Thirty-one propranolol-sensitive essential tremor patients with upper limb tremor and 29 healthy controls were measured. T2*-weighted EPI sequences were acquired. The task consisted of alternating rest and finger tapping blocks. A whole-brain and region-of-interest analysis was performed, the latter focusing on the cerebellar cortex, dentate nucleus and inferior olive nucleus. Activations were also related to tremor severity. RESULTS:In patients, dentate activation correlated positively with tremor severity as measured by the tremor rating scale part A. Patients had reduced activation in widespread cerebellar cortical regions, and additionally in the inferior olive nucleus, and parietal and frontal cortex, compared to controls. CONCLUSION:The increase in dentate activation with tremor severity supports involvement of the dentate nucleus in essential tremor. Cortical and cerebellar changes during a motor timing task in essential tremor might point to widespread changes in cerebellar output in essential tremor.
journal_name
Parkinsonism Relat Disordjournal_title
Parkinsonism & related disordersauthors
Buijink AW,Broersma M,van der Stouwe AM,van Wingen GA,Groot PF,Speelman JD,Maurits NM,van Rootselaar AFdoi
10.1016/j.parkreldis.2015.02.003subject
Has Abstractpub_date
2015-04-01 00:00:00pages
383-8issue
4eissn
1353-8020issn
1873-5126pii
S1353-8020(15)00056-5journal_volume
21pub_type
杂志文章,多中心研究abstract：UNLABELLED:Some recent studies indicate that most essential tremor (ET) cases have cerebellar pathology characterized by Purkinje cell (PC) loss and its sequelae. OBJECTIVE:To assess the role of PC degeneration in ET symptomatology. METHODS:We studied seven ET, six tremor dominant Parkinson's disease controls and two...
journal_title：Parkinsonism & related disorders
pub_type： 评论,杂志文章
doi：10.1016/j.parkreldis.2011.05.008
更新日期：2011-07-01 00:00:00
abstract：:The present study demonstrated that individuals with Parkinson's disease display impairments in making profitable decisions, as evidenced by poorer performance on the Iowa Gambling Task relative to matched controls. The ability to make beneficial judgments solely correlates with ability to appropriately attribute inte...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2005.12.003
更新日期：2006-04-01 00:00:00
abstract：:Evidence shows that neuronal injury accompanies neuroinflammatory reactions in the brain, and well as in Parkinson's disease (PD) animal models, in which the loss of dopamine neurons is associated with the activation of microglia in the substantia nigra. Activated microglia can be illustrated in vivo using Positron em...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/S1353-8020(09)70814-4
更新日期：2009-12-01 00:00:00
abstract：INTRODUCTION:The Montreal Cognitive Assessment (MoCA) is a frequently utilized cognitive screening tool that has attractive clinical attributes when utilized in individuals with Parkinson's disease. However, the construct validity of this instrument has not been well-characterized in Parkinson's samples. The purpose of...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2017.05.023
更新日期：2017-08-01 00:00:00
abstract：:Head drop is characterized by marked anterior flexion of the cervical spine, caused by weakness of the neck extensors or by increased tone of the flexor muscles. We report a woman with Parkinson's disease and head drop not due to cervical dystonia (a common cause of antecollis in parkinsonisms). Clinical, radiological...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2007.02.009
更新日期：2008-01-01 00:00:00
abstract：:Abnormally aggregated tau protein is central to the pathophysiology of Alzheimer's disease, frontotemporal dementia variants, progressive supranuclear palsy, corticobasal degeneration and chronic traumatic encephalopathy. The post-mortem cortical density of hyperphosphorylated tau tangles correlates with pre-morbid co...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/j.parkreldis.2015.08.011
更新日期：2016-01-01 00:00:00
abstract：INTRODUCTION:In addition to neurogenic orthostatic hypotension (nOH), patients with synucleinopathies frequently have hypertension when supine. The long-term consequences of both abnormalities are difficult to disentangle. We aimed to determine if supine hypertension is associated with target organ damage and worse sur...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2020.04.011
更新日期：2020-06-01 00:00:00
abstract：:The alpha-synuclein gene (SNCA) multiplication causes autosomal dominant Parkinson Disease (PD): triplication is associated with early-onset rapidly progressing parkinsonism with a strong likelihood of developing dementia, while duplication is associated with a less severe phenotype similar to idiopathic PD. We tested...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2009.09.008
更新日期：2010-03-01 00:00:00
abstract：:The H1 haplotype was first identified 10 years ago. Initially, a dinucleotide polymorphism was detected in the tau (MAPT) gene and was subsequently found to be in linkage disequilibrium (LD) with other polymorphisms, forming the MAPT H1 haplotype, a risk factor for many neurological diseases, considered as tauopathies...
journal_title：Parkinsonism & related disorders
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.parkreldis.2008.03.001
更新日期：2009-01-01 00:00:00
abstract：:Patients with advanced Parkinson's Disease (PD) may be eligible for Deep Brain Stimulation (DBS) in case of medication-related motor fluctuations or tremor refractory to oral medication. However, several PD symptoms are unresponsive to DBS and constitute relative contra-indications for DBS. Patients referred for DBS u...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,多中心研究
doi：10.1016/j.parkreldis.2019.07.011
更新日期：2019-09-01 00:00:00
abstract：INTRODUCTION:Alzheimer's disease neuropathologies (amyloid-β and tau) frequently co-exist to varying degrees in Lewy body dementias (LBD), which include dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD). OBJECTIVES:To investigate the prevalence of tau in DLB and PDD, and its associations with clin...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/j.parkreldis.2020.09.030
更新日期：2020-11-01 00:00:00
abstract：:We describe a 30-year-old woman who suffered from an unusual task-specific focal hand dystonia, which dominantly occurred with use of a spoon; there were no other activities affected, except for mild writer's dystonia on same side. This is the first report of a spoon-related focal dystonia. ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2006.12.008
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Clinical differentiation between parkinsonian syndromes (PS) remains a challenge despite well-established clinical diagnostic criteria. Specific diagnostic biomarkers have yet to be identified, though in recent years, studies have been published on the aid of certain brain related proteins (BRP) in the diagn...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2011.08.012
更新日期：2012-01-01 00:00:00
abstract：INTRODUCTION:We aimed to evaluate whether neuromelanin-sensitive MRI (NM-MRI) features in the substantia nigra pars compacta (SNc) were of diagnostic value to differentiate untreated essential tremor (ET) from de novo tremor-dominant Parkinson's disease (PDT). METHODS:Eighteen untreated ET patients, 21 de novo PDT pat...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2018.07.007
更新日期：2019-01-01 00:00:00
abstract：:A confluence of variables in Parkinson's disease results in Parkinson's informal caregivers facing tremendous challenges. Factors include: motor and non-motor symptoms, staging, rate of progression and increased life expectancy of people with Parkinson's (PwP) due to effective drug therapy and surgery. Informal caregi...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/S1353-8020(09)70796-5
更新日期：2009-12-01 00:00:00
abstract：BACKGROUND:Autosomal-dominant striatal degeneration (ADSD) is a rare neurodegenerative movement disorder caused by mutations in the Phosphodiesterase 8B (PDE8B) gene. OBJECTIVE:To summarize the clinical and imaging features of a Chinese ADSD family and determine whether mutations in PDE8B are associated with Parkinson...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2019.11.002
更新日期：2019-12-01 00:00:00
abstract：:The purpose of this preliminary study was to investigate the inter-rater reliability among physician, patient, and caregiver ratings on the Hoehn & Yahr (H & Y) and Schwab & England (S & E) rating instruments. We also examined differences in ratings between patients who attended clinic with and without caregivers (spo...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/s1353-8020(01)00009-8
更新日期：2002-01-01 00:00:00
abstract：:Serious adverse effects with antichoreic drugs can occur in patients with acute Sydenham's chorea (SC). The response to conventional treatment in severe SC may also be poor. Thus alternative therapeutic strategies have been developed. We report on four patients with severe acute SC (two with chorea paralytica and two ...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2005.02.007
更新日期：2005-08-01 00:00:00
abstract：:Corticobasal degeneration (CBD) presents with symptoms that often overlap with other neurological conditions. In many cases, diagnosis, prognosis and consequent clinical management remain uncertain. Structural and functional asymmetric brain changes represent the most consistent imaging findings that may assist in CBD...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2007.09.011
更新日期：2008-01-01 00:00:00
abstract：PURPOSE:Fall-related fracture is one of the most disabling features of idiopathic Parkinson's disease (PD). A better understanding of the associated factors is needed to predict PD patients who will require treatment. METHODS:This prospective study enrolled 100 adult idiopathic PD patients. Stepwise logistic regressio...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2013.09.024
更新日期：2014-01-01 00:00:00
abstract：:The 'hung-up' knee jerk (HUKJ) is a specific, although rarely appreciated, clinical sign of Huntington's Disease. A HUKJ was present in 11 of 31 consecutive patients with Huntington's Disease seen in our practice. The clinical characteristics of these patients are described and an EMG recording of the HUKJ is presente...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/s1353-8020(02)00095-0
更新日期：2003-06-01 00:00:00
abstract：BACKGROUND:Estimation of progression in Parkinson's disease (PD) is useful to guide clinical decisions and to enable patients to plan and manage their life with PD. Rapid eye movement (REM) sleep behavior disorder (RBD) and REM sleep without atonia (RWA) are recognized as early harbingers of neurodegeneration and may p...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2014.01.005
更新日期：2014-04-01 00:00:00
abstract：INTRODUCTION:Early Onset Parkinson's Disease (EOPD) is genetically heterogeneous. PARK2 mutations are the commonest cause of autosomal recessive EOPD followed by PINK1.DJ1 mutations is rare and there is scarce literature on its phenotype and long term outcome. OBJECTIVES:We undertook a retrospective study to determine...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2016.04.024
更新日期：2016-11-01 00:00:00
abstract：:Myoclonus is a sudden and brief involuntary muscle contraction presenting with jerk-like movements that can occasionally involve the trunk muscles or the diaphragm as in the case of spinal myoclonus1. We here present an unusual case with unilateral diaphragmatic myoclonus owing to electrode dislocation of an implantab...
journal_title：Parkinsonism & related disorders
pub_type： 信件
doi：10.1016/j.parkreldis.2019.03.004
更新日期：2019-06-01 00:00:00
abstract：:Parkinson's disease (PD) is the second most common neurodegenerative disease. Mutations in Leucine-rich-repeat-kinase 2 (LRRK2), the causative gene for PARK8 type PD with autosomal dominant inheritance, are the most prevalent genetic causes of both familial and sporadic PD. Animal models are critical tools in the atte...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/S1353-8020(11)70058-X
更新日期：2012-01-01 00:00:00
abstract：:The immunohistochemical demonstration of reactive microglia and activated complement components suggests that chronic inflammation occurs in affected brain regions in Parkinson's disease (PD). Evidence from humans and monkeys exposed to MPTP indicates this inflammation may persist many years after the initial stimulus...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/j.parkreldis.2004.01.005
更新日期：2004-05-01 00:00:00
abstract：:Restless legs syndrome (RLS) is a common condition characterized by an urge to move the legs, accompanied by uncomfortable or unpleasant sensations. Symptoms predominantly occur at rest in the evening or at night, and they are alleviated by moving the affected extremity or by walking. Recent European epidemiological s...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章,评审
doi：10.1016/S1353-8020(09)70838-7
更新日期：2009-12-01 00:00:00
abstract：BACKGROUND:Deep brain stimulation of the internal pallidum (GPi-DBS) is effective for various types of drug-refractory primary dystonias. Rare clinical forms as dystonic camptocormia may profit but available data are scarce. METHODS:We here report on a retrospective clinical assessment of three patients with primary d...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2013.10.022
更新日期：2014-02-01 00:00:00
abstract：:Mutations in the parkin gene are a common cause of autosomal recessive juvenile parkinsonism (AR-JP) but their role in idiopathic Parkinson's disease (PD) is not clear. Recent studies demonstrate that most young onset PD without family history is not due to mutations in parkin. However, there is less information about...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2005.04.003
更新日期：2005-09-01 00:00:00
abstract：OBJECTIVE:To demonstrate that degeneration of substantia nigra neurons may occur at later stages of disease in some patients with corticobasal syndrome (CBS) who evidenced preserved nigrostriatal pathway at a baseline FP-CIT SPECT study. BACKGROUND:Current pathological criteria for the definite diagnosis of corticobas...
journal_title：Parkinsonism & related disorders
pub_type： 杂志文章
doi：10.1016/j.parkreldis.2013.01.013
更新日期：2013-05-01 00:00:00
