Abstract:
INTRODUCTION:There is considerable intra- and inter-individual variability in the pharmacokinetics (PK) of levodopa after oral administration. Inter-individual variability in levodopa PK has also been demonstrated in fasting single-dose studies. We examined the factors that affect levodopa PK in patients with Parkinson's disease (PD) and quantified the intensity of their respective effects. METHODS:We studied 220 patients who underwent PK assessment after administration of 1 tablet of levodopa/DOPA decarboxylase inhibitor (DCI) combination, which contained 10 mg carbidopa/100 mg levodopa or 25 mg benserazide/100 mg levodopa. PK was evaluated using non-compartmental analysis. RESULTS:In total, 220 PD patients (including 112 men) were studied. The mean age (±standard deviation) and mean disease duration was 68.1 ± 8.9 and 7.7 ± 5.8 years, respectively. The Cmax of levodopa was 9.0 ± 4.0 ng/mL, Tmax was 41.4 ± 40.2 min, and area under the blood concentration-time curve up to 4 h (AUC4hr) was 12.3 ± 3.7 ng/mL*4hr. Factors affecting AUC4hr were analyzed using multiple linear regression models. Age (1.1 ± 0.23 per +10 years, p = 3.1E-8), sex (2.2 ± 0.5 for female, p = 1.9E-5), DCI (1.4 ± 0.4 for benserazide, p = 0.0028), and body weight (-0.77 ± 0.22 per +10 kg, p = 5.4E-4) were significantly related to AUC4hr, while disease duration, dyskinesia status, and eGFR were not related to AUC4hr and Cmax. CONCLUSION:Female, aging, difference formulations of DCI, or lower body weight independently contributes to increased AUC4hr of levodopa in Japanese patients with PD in this study.
journal_name
Parkinsonism Relat Disordjournal_title
Parkinsonism & related disordersauthors
Nishikawa N,Iwaki H,Shiraishi T,Mukai Y,Takahashi Y,Murata Mdoi
10.1016/j.parkreldis.2020.05.020subject
Has Abstractpub_date
2020-07-01 00:00:00pages
16-20eissn
1353-8020issn
1873-5126pii
S1353-8020(20)30129-2journal_volume
76pub_type
杂志文章abstract:OBJECTIVE:To investigate whether dopamine transporter (DAT) binding, as measured with single photon emission computed tomography (SPECT), can be used to predict mortality in patients with Parkinson's disease (PD). METHODS:A total of 162 patients with PD and abnormal [I-123]FP-CIT SPECT were clinically followed for a m...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2017.06.013
更新日期:2017-09-01 00:00:00
abstract:INTRODUCTION:Cognitive deficits and neuropsychiatric symptoms occur in parkinsonian and cerebellar subtypes of Multiple System Atrophy (MSA-P and MSA-C). These symptoms have been investigated mainly in cross-sectional studies. The present 1-year follow-up study aimed at evaluating the evolution of cognitive and neurops...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2019.12.010
更新日期:2020-01-01 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::Moclobemide, a potent reversible monoamine-oxidase A (MAO-A) inhibitor, is an effective antidepressant that does not cause impairment of cognitive function in elderly patients and might be beneficial to motor deficits in Parkinson's disease (PD). In a 12-week open-label prospective study, we administered moclobemide (...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/s1353-8020(97)00028-x
更新日期:1997-12-01 00:00:00
abstract::There has been a tremendous development since a regional progression of pathology in subjects with Lewy bodies (LB) was initially proposed 30 years ago. The entity of dementia with Lewy bodies has been acknowledged, the main protein constituent of LBs--aggregated α-synuclein (αS)--has been identified and a stepwise pr...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/S1353-8020(13)70016-6
更新日期:2014-01-01 00:00:00
abstract:INTRODUCTION:The age of diagnosis of Huntington's disease (HD) varies among individuals with the same HTT CAG-repeat expansion size. We investigated whether early-life events, like perinatal insults or neurodevelopmental disorders, influence the diagnosis age. METHODS:We used data from 13,856 participants from REGISTR...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,多中心研究
doi:10.1016/j.parkreldis.2018.05.016
更新日期:2018-10-01 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:INTRODUCTION:The pathophysiology of dysphagia in Parkinson's disease (PD) is heterogeneous and poorly understood at present. This study investigated the phenotypes, prevalence and pathophysiology of oropharyngeal freezing (OPF) in PD and its relation to dysphagia. METHODS:In a prospective study, 50 PD patients were sy...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2020.05.002
更新日期:2020-06-01 00:00:00
abstract:INTRODUCTION:There is a dearth of studies of spinocerebellar ataxias (SCAs) and diffusion tensor magnetic resonance imaging (DTI). OBJECTIVE:To analyze changes observed in DTI parameters and correlate these to clinical findings in SCA3 and SCA10 patients. METHODS:SCA3 (n = 19) and SCA10 (n = 18) patients were compare...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2020.06.460
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:No effective treatment for tardive dystonia (TD) has been well established. Deep brain stimulation (DBS) can ameliorate motor manifestations in primary dystonia, and may also be an effective approach for TD. OBJECTIVES:This study aimed to illuminate the long-term efficacy and safety of subthalamic nucleus (...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2017.05.010
更新日期:2017-08-01 00:00:00
abstract::In patients with Idiopathic Parkinson's Disease (IPD) without a history of syncope the cardiovascular and cerebrovascular response to orthostatic stress was studied to search for subclinical impairment of autoregulatory mechanisms. Fifteen patients with IPD and 15 healthy age-matched controls were studied at rest and ...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/s1353-8020(01)00014-1
更新日期:2002-03-01 00:00:00
abstract::Although the subspeciality of movement disorders was established in neurology more than 20 years ago, it is relatively new in Thailand, and while most physicians are generally aware of Parkinson's disease, they often are not familiar with dystonia. As one of the common movement disorders seen in general practice, a nu...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2011.06.014
更新日期:2011-11-01 00:00:00
abstract:INTRODUCTION:Germline silencing of the PD-related protein LRRK2 does not alter glutamate or dopamine release in adult mice, but some exploratory abnormalities have been reported with ageing. Contrastingly, high levels of human LRRK2 cause locomotor alterations and cognitive deficits accompanied by reduced striatal dopa...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2015.07.025
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Lower levels of physical activity are associated with lower Health-Related Quality of Life (HRQoL) in Parkinson's disease (PD). We evaluated the influence of quantitative physical activity parameters among other (disease-related) features representing other domains of the WHO International model for classifi...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2017.12.023
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:Tremor-related quality of life is a multi-dimensional concept that reflects the physical, emotional and other health effects of tremor. Curiously, tremor-related quality of life has never been directly compared in patients with the two major tremor disorders, essential tremor (ET) and Parkinson's disease (PD...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2015.04.019
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVE:To assess the association between diabetes preceding Parkinson's disease (PD) and PD. METHODS:PD individuals were matched to PD free individuals randomly selected from people in the same municipality as the cases. Occurrence of diabetes preceding PD onset among cases and controls was assessed through a struc...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2009.02.013
更新日期:2009-11-01 00:00:00
abstract:INTRODUCTION:Patients with Parkinson disease (PD) often develop psychosis (P). The association of PDP with death and long-term custodial care (CC) has not been well studied. METHODS:Medicare Parts A, B, and D data, 2007-2015, were used to define cohorts of PD and PDP patients. PD was defined by ≥ 2 ICD-9-CM codes (332...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2019.10.018
更新日期:2019-11-01 00:00:00
abstract::A 68-year-old, normal female volunteer was scanned by positron emission tomography (PET) with [(18)F]6-L-fluorodopa (FD). Striatal FD uptake was in the high normal range. Subsequently, she developed parkinsonism 3.7 years after the scan. A repeat FD PET scan revealed a significant reduction of FD uptake by 20% over th...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/1353-8020(96)00010-7
更新日期:1996-07-01 00:00:00
abstract:OBJECTIVE:To estimate the frequency and correlates of involuntary emotional expression disorder (IEED) in Parkinson's disease (PD) using the Center for Neurologic Study-Lability Scale (CNS-LS) and recently-proposed diagnostic criteria for IEED. BACKGROUND:IEED is characterized by uncontrollable emotional episodes, typ...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2009.01.001
更新日期:2009-08-01 00:00:00
abstract:INTRODUCTION:Patients with Parkinson's disease (PD) frequently lose weight, even in the early stages of the disease. Our objective was to clarify the association between low body mass index (BMI) and life prognosis in PD. METHODS:We conducted a retrospective cohort study of 651 PD patients (380 females), with a primar...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2018.05.011
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the subject-investigator agreement on the Unified Parkinson's Disease Rating Scale (UPDRS) subsections I and II. METHODS:Subject-investigator agreement was estimated at baseline and endpoint by Kappa statistics for individual items and concordance correlations for subscale totals using data from ...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2011.10.006
更新日期:2012-03-01 00:00:00
abstract::The recently discovered trace amine associated receptors (TAARs) represent attractive potential mediators of certain aspects of movement control. The TAAR that is best characterized, TAAR1, is particularly interesting because it can be activated by a variety of monoaminergic compounds including trace amines, amphetami...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/j.parkreldis.2008.04.006
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:Fatigue is one of the most common and disabling non-motor symptoms in Parkinson's disease (PD). The objective of this study was to determine prevalence and motor, behavioural, and cognitive correlates of distressing fatigue in early, de novo PD patients. METHODS:Eighty-one consecutive de novo PD patients ...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2017.10.004
更新日期:2017-12-01 00:00:00
abstract::The clinical phenotype of frontotemporal dementia with parkinsonism linked to chromosome 17 (FTDP-17) varies. This variability is seen not only between kindreds with different mutations but also in families sharing the same mutation. Inheritance of tau haplotype (H1) and genotype (H1/H1) has been established as a risk...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2005.01.003
更新日期:2005-06-01 00:00:00
abstract::Wilson's disease (WD) is a rare inborn metabolic error characterized by deficient biliary copper excretion secondary to ATP7B gene mutations. Neurological presentations are variable in respect to both pattern and age of onset; commonly a movement disorder presents in the second or third decade. The aim of this study w...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2007.08.002
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Mutations in GNAL have recently been identified as responsible for primary dystonia, however, GNAL mutations in Chinese patients with primary dystonia are not well characterized. PATIENTS AND METHODS:Fifty-nine unrelated patients with cervical onset or cervical involved primary dystonia and 120 neurological...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2013.05.011
更新日期:2013-10-01 00:00:00
abstract::Positron emission tomography (PET) scan is considered to be the most useful tool with which to assess the integrity of nigrostriatal function in the living brain. Recently, different genetic defects have been associated with a variety of familial parkinsonian syndromes, the clinical phenotypes of which have varying de...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/s1353-8020(01)00008-6
更新日期:2001-09-01 00:00:00
abstract::The interactive effects of neonatal iron and adult MPTP treatment groups of C57 Bl/6 mice were studied through adminustration of iron (Fe(2+)) 7.5mg/kg b.w., p.o. or vehicle (saline) on days 10-12 post partum, followed at 3months of age by administration of either MPTP (2x20 or 2x40mg/kg, s.c.) or saline. Neonatal iro...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/s1353-8020(00)00028-6
更新日期:2001-04-01 00:00:00
abstract::White matter lesions (WML) and epilepsy have been occasionally seen in Wilson's disease. No cases of generalized myoclonus have been reported so far. We present a patient with psychiatric symptoms starting at age 16, followed by tremor, generalized dystonia and severe generalized myoclonus. In addition to classical fi...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2006.03.012
更新日期:2007-04-01 00:00:00
abstract::Levodopa is one of the most effective symptomatic treatment options for Parkinsonism with a favorable safety and tolerability profile. In some patients, particularly those suffering from orthostatic intolerance, the hypotensive effect of levodopa limits its therapeutic use. We used continuous noninvasive cardiovascula...
journal_title:Parkinsonism & related disorders
pub_type: 临床试验,杂志文章
doi:10.1016/j.parkreldis.2014.04.007
更新日期:2014-08-01 00:00:00