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https://www.readbyqxmd.com/read/27914043/a-revisit-to-quantitative-pet-with-18-f-fdopa-of-high-specific-activity-using-a-high-resolution-condition-in-view-of-application-to-regenerative-therapy
#1
Go Akamatsu, Akihito Ohnishi, Kazuki Aita, Hiroyuki Nishida, Yasuhiko Ikari, Masahiro Sasaki, Nobuo Kohara, Michio Senda
OBJECTIVE: With the advent of regenerative/cell therapy for Parkinson's disease (PD), (18)F-FDOPA has drawn new attention as a biomarker of the therapeutic that cannot be evaluated with radiopharmaceuticals for dopamine transporter. Since most previous (18)F-FDOPA PET studies were carried out many years ago with a PET scanner of lower resolution and with (18)F-FDOPA of low specific activity synthesized from (18)F-F2, we used a newer PET/CT scanner with a high-resolution condition and (18)F-FDOPA synthesized from (18)F-F(-) to re-evaluate this technique on normal subjects and patients with PD, together with D2 receptor imaging with (11)C-raclopride (RAC)...
December 2, 2016: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/27914023/reliability-and-validity-of-the-persian-translation-of-berg-balance-scale-in-parkinson-disease
#2
Arash Babaei-Ghazani, Hosein Mohammadi, Gholam Ali Shahidi, Seyed Amir Hasan Habibi, Bijan Forogh, Tannaz Ahadi, Bina Eftekharsadat
PURPOSE: Parkinson disease (PD) is one of the common causes of imbalance, and the balance assessment is necessary for treatment and rehabilitation of these patients. The Berg Balance Scale (BBS) has been the main instrument used to evaluate balance impairment. The purpose of this study is to investigate reliability and validity of the Persian translation of BBS in Parkinson disease. METHODS: One hundred PD patients (with mean age of 56.8 ± 15.13 years) were included...
December 2, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27913963/erratum-to-altered-nr4a-subfamily-gene-expression-level-in-peripheral-blood-of-parkinson-s-and-alzheimer-s-disease-patients
#3
Francesca Montarolo, Simona Perga, Serena Martire, De'sire'e Nicole Navone, Alberto Marchet, Daniela Leotta, Antonio Bertolotto
No abstract text is available yet for this article.
December 2, 2016: Neurotoxicity Research
https://www.readbyqxmd.com/read/27913844/global-dna-methylation-profiling-of-manganese-exposed-human-neuroblastoma-sh-sy5y-cells-reveals-epigenetic-alterations-in-parkinson-s-disease-associated-genes
#4
Prashant Tarale, Saravanadevi Sivanesan, Atul P Daiwile, Reinhard Stöger, Amit Bafana, Pravin K Naoghare, Devendra Parmar, Tapan Chakrabarti, Krishnamurthi Kannan
Manganese (Mn) is an essential trace element required for optimal functioning of cellular biochemical pathways in the central nervous system. Elevated exposure to Mn through environmental and occupational exposure can cause neurotoxic effects resulting in manganism, a condition with clinical symptoms identical to idiopathic Parkinson's disease. Epigenetics is now recognized as a biological mechanism involved in the etiology of various diseases. Here, we investigated the role of DNA methylation alterations induced by chronic Mn (100 µM) exposure in human neuroblastoma (SH-SY5Y) cells in relevance to Parkinson's disease...
December 2, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27913696/insights-gleaned-by-measuring-patients-stated-goals-for-dbs-more-than-tremor
#5
Cynthia S Kubu, Scott E Cooper, Andre Machado, Thomas Frazier, Jerrold Vitek, Paul J Ford
OBJECTIVE: To report prospective repeated measures data detailing the perceived benefit of deep brain stimulation (DBS) on the most commonly cited symptom and activity goals identified by patients with Parkinson disease. METHODS: Fifty-two participants were recruited from a consecutive series. Participants completed a semi-structured interview soliciting their symptom and behavioral goals and corresponding visual analog scales measuring perceived symptom severity and limits to goal attainment...
December 2, 2016: Neurology
https://www.readbyqxmd.com/read/27913672/first-model-of-dimeric-lrrk2-the-challenge-of-unrevealing-the-structure-of-a-multidomain-parkinson-s-associated-protein
#6
REVIEW
Giambattista Guaitoli, Bernd K Gilsbach, Francesco Raimondi, Christian Johannes Gloeckner
Mutations within the leucine-rich repeat kinase 2 (LRRK2) gene represent the most common cause of Mendelian forms of Parkinson's disease, among autosomal dominant cases. Its gene product, LRRK2, is a large multidomain protein that belongs to the Roco protein family exhibiting GTPase and kinase activity, with the latter activity increased by pathogenic mutations. To allow rational drug design against LRRK2 and to understand the cross-regulation of the G- and the kinase domain at a molecular level, it is key to solve the three-dimensional structure of the protein...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913671/l-rrk-de-triomphe-a-solution-for-lrrk2-gtpase-activity
#7
REVIEW
Jonathon Nixon-Abell, Daniel C Berwick, Kirsten Harvey
Leucine-rich repeat kinase 2 (LRRK2) is a central protein in the pathogenesis of Parkinson's disease (PD), yet its normal function has proved stubbornly hard to elucidate. Even though it remains unclear how pathogenic mutations affect LRRK2 to cause PD, recent findings provide increasing cause for optimism. We summarise here the developing consensus over the effect of pathogenic mutations in the Ras of complex proteins and C-terminal of Roc domains on LRRK2 GTPase activity. This body of work has been greatly reinforced by our own study of the protective R1398H variant contained within the LRRK2 GTPase domain...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913670/screening-for-chemical-modulators-for-lrrk2
#8
REVIEW
Heather Mortiboys
After the discovery of leucine-rich repeat kinase 2 (LRRK2) as a risk factor for sporadic Parkinson's disease (PD) and mutations in LRRK2 as a cause of some forms of familial PD, there has been substantial interest in finding chemical modulators of LRRK2 function. Most of the pathogenic mutations in LRRK2 are within the enzymatic cores of the protein; therefore, many screens have focused on finding chemical modulators of this enzymatic activity. There are alternative screening approaches that could be taken to investigate compounds that modulate LRRK2 cellular functions...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913669/the-unconventional-g-protein-cycle-of-lrrk2-and-roco-proteins
#9
REVIEW
Susanne Terheyden, Laura M Nederveen-Schippers, Arjan Kortholt
Mutations in the human leucine-rich repeat kinase 2 (LRRK2) are the most frequent cause of hereditary Parkinson's disease (PD). LRRK2 belongs to the Roco family of proteins, which are characterized by the presence of a Ras of complex proteins domain (Roc), a C-terminal of Roc domain (COR) and a kinase domain. Despite intensive research, much remains unknown about activity and the effect of PD-associated mutations. Recent biochemical and structural studies suggest that LRRK2 and Roco proteins are noncanonical G-proteins that do not depend on guanine nucleotide exchange factors or GTPase-activating proteins for activation...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913668/cellular-functions-of-lrrk2-implicate-vesicular-trafficking-pathways-in-parkinson-s-disease
#10
REVIEW
Mark R Cookson
Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene, associated with Parkinson's disease, have been shown to affect intracellular trafficking pathways in a variety of cells and organisms. An emerging theme is that LRRK2 can bind to multiple membranous structures in cells, and several recent studies have suggested that the Rab family of small GTPases might be important in controlling the recruitment of LRRK2 to specific cellular compartments. Once localized to membranes, LRRK2 then influences downstream events, evidenced by changes in the autophagy-lysosome pathway...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913281/beyond-emotion-recognition-deficits-a-theory-guided-analysis-of-emotion-processing-in-huntington-s-disease
#11
REVIEW
Catarina C Kordsachia, Izelle Labuschagne, Julie C Stout
Deficits in facial emotion recognition in Huntington's disease (HD) have been extensively researched, however, a theory-based integration of these deficits into the broader picture of emotion processing is lacking. To describe the full extent of emotion processing deficits we reviewed the clinical research literature in HD, including a consideration of research in Parkinson's disease, guided by a theoretical model on emotion processing, the Component Process Model. Further, to contribute to understanding the mechanisms underlying deficient emotion recognition, we discussed the literature in light of specific emotion recognition theories...
November 29, 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27913126/association-between-parkinson-s-disease-and-risk-of-colorectal-cancer
#12
Xin Xie, Xiaoguang Luo, Mingliang Xie
BACKGROUND: Growing evidence has reported that gut microbiota is involved in pathogenesis of Parkinson's disease (PD) and colorectal cancer (CRC), and the association between PD and CRC does not reach a consensus. In order to explore their correlation, herein we summarize the epidemiological evidence and included relevant studies to perform a meta-analysis. METHODS: A comprehensive literature search for relevant articles published was performed in Medline, Web of Science and Embase up to June 30, 2016...
November 22, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27913125/apomorphine-therapy-in-parkinson-s-and-future-directions
#13
Nataliya Titova, K Ray Chaudhuri
Apomorphine infusion or injection is an important dopamine agonist non-oral therapy usually used in advanced Parkinson's disease (PD) with refractory motor fluctuations. The drug also has appreciable efficacy for nonmotor fluctuations and is the quickest to reverse predictable "off" periods. Current subcutaneous administration, however, is complicated by problems associated with needle-based therapies, such as skin nodule formation, skin irritation, and avoidance of this treatment option by needle-phobic subjects...
November 30, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27913104/d-ala2-gip-glu-pal-is-neuroprotective-in-a-chronic-parkinson-s-disease-mouse-model-and-increases-bndf-expression-while-reducing-neuroinflammation-and-lipid-peroxidation
#14
Yanwei Li, WeiZhen Liu, Lin Li, Christian Hölscher
Type 2 diabetes mellitus (T2DM) is a risk factor for Parkinson's disease (PD). Therefore, treatment to improve insulin resistance in T2DM may be useful for PD patients. Glucose dependent insulinotropic polypeptide (GIP) is a member of the incretin hormone family that can promote insulin release and improve insulin resistance. Several GIP analogues have been developed as potential treatments for T2DM. We had shown previously that D-Ala2-GIP-glu-PAL, a novel long-acting GIP analogue, can play a neuroprotective role in the PD mouse model induced by acute MPTP injection...
November 29, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27913063/a-novel-approach-to-falls-classification-in-parkinson-s-disease-development-of-the-fall-related-activity-classification-frac
#15
Annie Ross, Alison J Yarnall, Lynn Rochester, Sue Lord
BACKGROUND: Falls are a major problem for people with Parkinson's disease (PD). Despite years of focused research knowledge of falls aetiology is poor. This may be partly due to classification approaches which conventionally report fall frequency. This nosology is blunt, and does not take into account causality or the circumstances in which the fall occurred. For example, it is likely that people who fall from a postural transition are phenotypically different to those who fall during high level activities...
September 3, 2016: Physiotherapy
https://www.readbyqxmd.com/read/27912936/effects-of-mind-body-exercises-on-the-physiological-and-psychosocial-well-being-of-individuals-with-parkinson-s-disease-a-systematic-review-and-meta-analysis
#16
REVIEW
JoJo Yan Yan Kwok, Kai Chow Choi, Helen Yue Lai Chan
OBJECTIVES: The effects of mind-body exercises on individuals with chronic illnesses have attracted increasing attention. However, little effort had been made to systematically review the effects of these mind-body exercises on individuals with Parkinson's disease (PD). This review aimed to appraise the current evidence of the effects of mind-body exercises on the physiological and psychological outcomes for the PD population. DESIGN: Systematic review and meta-analysis of randomized controlled trials...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912935/multi-dimensional-analysis-on-parkinson-s-disease-questionnaire-39-in-parkinson-s-patients-treated-with-bushen-huoxue-granule-a-multicenter-randomized-double-blinded-and-placebo-controlled-trial
#17
Min Li, Hui Ming Yang, Dong Xiao Luo, Jian Zong Chen, Heng Jun Shi
OBJECTIVES: To preliminarily assess the effects of Bushen Huoxue Granule (BHG) on Parkinson's Patients with Parkinson's Disease Questionnaire-39 (PDQ-39)and to provide data for further research. DESIGN: A randomized, double-blinded, placebo controlled study with a 3-month intervention period and a 6-month follow-up. INTERVENTIONS: Participants were patients with Parkinson's Disease (PD) of age ranging from 50 to 80 years and Hoehn and Yahr (H-Y) stage I-IV of the disease...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912072/lexical-retrieval-and-semantic-memory-in-parkinson-s-disease-the-question-of-noun-and-verb-dissociation
#18
Henrique Salmazo-Silva, Maria Alice de Mattos Pimenta Parente, Maria Sheila Rocha, Roberta Roque Baradel, André M Cravo, João Ricardo Sato, Fabio Godinho, Maria Teresa Carthery-Goulart
The dissociation between the processing of verbs and nouns has been debated in light of the Embodied Cognition Theory (EC). The objective of this paper is to verify how action and verb processing deficits of PD patients are modulated by different tasks with different cognitive demands. Action and object lexical-semantic processing was evaluated in patients with Parkinson's Disease (PD) and cognitively healthy controls through three different tasks (verbal fluency, naming and semantic association). Compared to controls, PD patients presented worse performance in naming actions and in the two semantic association tasks (action/object)...
November 29, 2016: Brain and Language
https://www.readbyqxmd.com/read/27912057/gut-microbiota-regulate-motor-deficits-and-neuroinflammation-in-a-model-of-parkinson-s-disease
#19
Timothy R Sampson, Justine W Debelius, Taren Thron, Stefan Janssen, Gauri G Shastri, Zehra Esra Ilhan, Collin Challis, Catherine E Schretter, Sandra Rocha, Viviana Gradinaru, Marie-Francoise Chesselet, Ali Keshavarzian, Kathleen M Shannon, Rosa Krajmalnik-Brown, Pernilla Wittung-Stafshede, Rob Knight, Sarkis K Mazmanian
The intestinal microbiota influence neurodevelopment, modulate behavior, and contribute to neurological disorders. However, a functional link between gut bacteria and neurodegenerative diseases remains unexplored. Synucleinopathies are characterized by aggregation of the protein α-synuclein (αSyn), often resulting in motor dysfunction as exemplified by Parkinson's disease (PD). Using mice that overexpress αSyn, we report herein that gut microbiota are required for motor deficits, microglia activation, and αSyn pathology...
December 1, 2016: Cell
https://www.readbyqxmd.com/read/27911344/patient-perspectives-on-deep-brain-stimulation-clinical-research-in-early-stage-parkinson-s-disease
#20
Lauren Heusinkveld, Mallory Hacker, Maxim Turchan, Madelyn Bollig, Christina Tamargo, William Fisher, Lauren McLaughlin, Adria Martig, David Charles
The FDA approved a multicenter, double-blind, Phase III, pivotal trial testing deep brain stimulation in 280 people with very early stage Parkinson's disease (PD; IDE#G050016). In partnership with The Michael J. Fox Foundation for Parkinson's Research, we conducted a survey to investigate motivating factors, barriers, and gender differences for participation in a trial testing DBS in early PD. The majority of survey respondents (72%) indicated they would consider learning more about participating. Men and women with early PD are likely to consider enrolling in trials of invasive therapies that may slow symptom progression and help future patients...
November 30, 2016: Journal of Parkinson's Disease
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