keyword
MENU ▼
Read by QxMD icon Read
search

Parkinson's disease

keyword
https://www.readbyqxmd.com/read/29346787/speech-and-communication-changes-reported-by-people-with-parkinson-s-disease
#1
Ellika Schalling, Kerstin Johansson, Lena Hartelius
BACKGROUND: Changes in communicative functions are common in Parkinson's disease (PD), but there are only limited data provided by individuals with PD on how these changes are perceived, what their consequences are, and what type of intervention is provided. AIM: To present self-reported information about speech and communication, the impact on communicative participation, and the amount and type of speech-language pathology services received by people with PD. METHODS: Respondents with PD recruited via the Swedish Parkinson's Disease Society filled out a questionnaire accessed via a Web link or provided in a paper version...
January 18, 2018: Folia Phoniatrica et Logopaedica
https://www.readbyqxmd.com/read/29346382/6-ohda-induced-dopaminergic-neurodegeneration-in-caenorhabditis-elegans-is-promoted-by-the-engulfment-pathway-and-inhibited-by-the-transthyretin-related-protein-ttr-33
#2
Sarah-Lena Offenburger, Xue Yan Ho, Theresa Tachie-Menson, Sean Coakley, Massimo A Hilliard, Anton Gartner
Oxidative stress is linked to many pathological conditions including the loss of dopaminergic neurons in Parkinson's disease. The vast majority of disease cases appear to be caused by a combination of genetic mutations and environmental factors. We screened for genes protecting Caenorhabditis elegans dopaminergic neurons from oxidative stress induced by the neurotoxin 6-hydroxydopamine (6-OHDA) and identified the transthyretin-related gene ttr-33. The only described C. elegans transthyretin-related protein to date, TTR-52, has been shown to mediate corpse engulfment as well as axon repair...
January 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29346364/mutations-in-caenorhabditis-elegans-neuroligin-like-glit-1-the-apoptosis-pathway-and-the-calcium-chaperone-crt-1-increase-dopaminergic-neurodegeneration-after-6-ohda-treatment
#3
Sarah-Lena Offenburger, Elisabeth Jongsma, Anton Gartner
The loss of dopaminergic neurons is a hallmark of Parkinson's disease, the aetiology of which is associated with increased levels of oxidative stress. We used C. elegans to screen for genes that protect dopaminergic neurons against oxidative stress and isolated glit-1 (gliotactin (Drosophila neuroligin-like) homologue). Loss of the C. elegans neuroligin-like glit-1 causes increased dopaminergic neurodegeneration after treatment with 6-hydroxydopamine (6-OHDA), an oxidative-stress inducing drug that is specifically taken up into dopaminergic neurons...
January 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29345633/impacts-of-an-exercise-program-and-motivational-telephone-counseling-on-health-related-quality-of-life-in-people-with-parkinson-s-disease
#4
JuHee Lee, MoonKi Choi, Yonju Yoo, Sangwoo Ahn, Justin Y Jeon, Ji Young Kim, Ji Yong Byun
PURPOSE: The purpose of this study was to test the effects of group exercise and telephone counseling on physical and psychosocial health in people with Parkinson's disease (PD). DESIGN: This was a quasiexperimental study with a nonequivalent control group. METHODS: This study took place in Seoul, South Korea. Twenty-two and 20 subjects participated in the intervention and comparison groups, respectively. The intervention group performed group exercises twice a week and received motivational telephone counseling every 2 weeks for 12 weeks...
November 14, 2017: Rehabilitation Nursing: the Official Journal of the Association of Rehabilitation Nurses
https://www.readbyqxmd.com/read/29345616/inhibition-of-oxidative-stress-in-cholinergic-projection-neurons-fully-rescues-aging-associated-olfactory-circuit-degeneration-in-drosophila
#5
Ashiq Hussain, Atefeh Pooryasin, Mo Zhang, Laura F Loschek, Marco La Fortezza, Anja B Friedrich, Catherine-Marie Blais, Habibe K Üçpunar, Vicente A Yépez, Martin Lehmann, Nicolas Gompel, Julien Gagneur, Stephan J Sigrist, Ilona C Grunwald Kadow
Loss of the sense of smell is among the first signs of natural aging and neurodegenerative diseases such as Alzheimer's and Parkinson's. Cellular and molecular mechanisms promoting this smell loss are not understood. Here, we show that Drosophila melanogaster also loses olfaction before vision with age. Within the olfactory circuit, cholinergic projection neurons show a reduced odor response accompanied by a defect in axonal integrity and reduction in synaptic marker proteins. Using behavioral functional screening, we pinpoint that expression of the mitochondrial reactive oxygen scavenger SOD2 in cholinergic projection neurons is necessary and sufficient to prevent smell degeneration in aging flies...
January 18, 2018: ELife
https://www.readbyqxmd.com/read/29345392/who-may-benefit-from-on-demand-control-of-deep-brain-stimulation-noninvasive-evaluation-of-parkinson-patients
#6
Daniel Graupe, Nivedita Khobragade, Daniela Tuninetti, Ishita Basu, Konstantin V Slavin, Leo Verhagen Metman
BACKGROUND: In closed-loop on-demand control (ODC) of deep brain stimulation (DBS), stimulation is applied only when symptoms appear. Following stimulation of a fixed duration, DBS is switched off until the symptoms reappear. By repeating these demand-driven cycles, the amount of stimulation delivered can be decreased, thereby reducing DBS side-effects and improving battery-life of the pulse-generator. This article introduces Ro metric for quantification of degree of benefit of ODC and explores candidate selection in tremor-dominant Parkinson's disease (PD)...
January 18, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29345156/pharmacokinetic-drug-evaluation-of-opicapone-for-the-treatment-of-parkinson-s-disease
#7
M Svetel, A Tomić, N Kresojević, V S Kostić
Opicapone (OPC) is a novel, potent, reversible, and purely peripheral third-generation COMT inhibitor, which provides an enhancement in levodopa (L-Dopa) availability. It represents adjunctive therapy for L-Dopa treated patients with PD and motor fluctuations. Areas covered: The purpose of this study was to evaluate pharmacokinetic of OPC for the treatment of PD. Expert commentary: Oral OPC exhibits linear, dose-dependent absorption. However, following concomitant ingestion of a high-fat, high-calorie meal, the maximum plasma concentration will be decreased...
January 18, 2018: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/29345126/enantioselective-synthesis-of-boryl-tetrahydroquinolines-via-cu-catalyzed-hydroboration
#8
Duanyang Kong, Suna Han, Guofu Zi, Guohua Hou, Jiaxin Zhang
A Cu-catalyzed regio- and enantioselective hydroboration of 1,2-dihydroquinolines with high yields and excellent enantioselectivities (up to 98% ee) was presented. This method could be applied in the asymmetric synthesis of the important intermediates used in the enantioselective synthesis of the potential agent Sumanirole for the treatment of Parkinson's disease and potentially interesting positive inotropic agent (S)-903.
January 18, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29344929/pla2g6-deficiency-in-zebrafish-leads-to-dopaminergic-cell-death-axonal-degeneration-increased-%C3%AE-synuclein-expression-and-defects-in-brain-functions-and-pathways
#9
Elena Sánchez, Luis J Azcona, Coro Paisán-Ruiz
This study aimed to gain insights into the pathophysiology underlying PLA2G6-associated neurodegeneration that is implicated in three different neurological disorders, suggesting that other, unknown genetic or environmental factors might contribute to its wide phenotypic expression. To accomplish this, we downregulated the function of pla2g6 in the zebrafish nervous system, performed parkinsonism-related phenotypic characterization, and determined the effects of gene regulation upon the loss of pla2g6 function by using RNA sequencing and downstream analyses...
January 17, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29344870/cell-specific-rna-quantification-in-human-sn-da-neurons-from-heterogeneous-post-mortem-midbrain-samples-by-uv-laser-microdissection-and-rt-qpcr
#10
Johanna Duda, Michael Fauler, Jan Gründemann, Birgit Liss
Cell specificity of gene expression analysis is from particular relevance when the abundance of target cells is not homogeneous in the compared tissue samples, like it is the case, e.g., when comparing brain tissues from controls and in neurodegenerative disease states. While single-cell gene expression profiling is already a methodological challenge per se, it becomes even more prone to artifacts when analyzing individual cells from human post-mortem samples. Not only because human samples can never be matched as precisely as those from animal models, but also, because the RNA-quality that can be obtained from human samples usually displays a high range of variability...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344865/isolation-of-distinct-types-of-neurons-from-fresh-brain-tissue-using-laser-microdissection-in-combination-with-high-performance-liquid-chromatography-mass-spectrometry
#11
Luisa Aring, Simone Steinbach, Katrin Marcus, Caroline May
Humans age and the ageing process affects cells in all areas of the human body, including nerve cells within the brain. With advancing age there is also a rise in the probability of developing a neurodegenerative disorder such as, e.g., amyotrophic lateral sclerosis, Huntington's disease, Parkinson's disease, or Alzheimer's disease. In all these age-related neurodegenerative disorders, distinct neuron populations within specific brain regions are primarily affected. For example, Parkinson's disease is characterized by a slowly progressive degeneration of dopaminergic neurons in the substantia nigra whereas the entorhinal cortex is first affected in Alzheimer's disease...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344405/lee-silverman-voice-treatment-versus-standard-speech-and-language-therapy-versus-control-in-parkinson-s-disease-a-pilot-randomised-controlled-trial-pd-comm-pilot
#12
Catherine M Sackley, Christina H Smith, Caroline E Rick, Marian C Brady, Natalie Ives, Smitaa Patel, Rebecca Woolley, Francis Dowling, Ramilla Patel, Helen Roberts, Sue Jowett, Keith Wheatley, Debbie Kelly, Gina Sands, Carl E Clarke
Background: Speech-related problems are common in Parkinson's disease (PD), but there is little evidence for the effectiveness of standard speech and language therapy (SLT) or Lee Silverman Voice Treatment (LSVT LOUD®). Methods: The PD COMM pilot was a three-arm, assessor-blinded, randomised controlled trial (RCT) of LSVT LOUD®, SLT and no intervention (1:1:1 ratio) to assess the feasibility and to inform the design of a full-scale RCT. Non-demented patients with idiopathic PD and speech problems and no SLT for speech problems in the past 2 years were eligible...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29343241/clinical-features-and-dysfunctions-of-iron-metabolism-in-parkinson-disease-patients-with-hyper-echogenicity-in-substantia-nigra-a-cross-sectional-study
#13
Shu-Yang Yu, Chen-Jie Cao, Li-Jun Zuo, Ze-Jie Chen, Teng-Hong Lian, Fang Wang, Yang Hu, Ying-Shan Piao, Li-Xia Li, Peng Guo, Li Liu, Qiu-Jin Yu, Rui-Dan Wang, Piu Chan, Sheng-di Chen, Xiao-Min Wang, Wei Zhang
BACKGROUND: Transcranial ultrasound is a useful tool for providing the evidences for the early diagnosis and differential diagnosis of Parkinson disease (PD). However, the relationship between hyper echogenicity in substantia nigra (SN) and clinical symptoms of PD patients remains unknown, and the role of dysfunction of iron metabolism on the pathogenesis of SN hyper echogenicity is unclear. METHODS: PD patients was detected by transcranial sonography and divided into with no hyper echogenicity (PDSN-) group and with hyper echogenicity (PDSN+) group...
January 17, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29342421/the-relation-between-plasma-%C3%AE-synuclein-level-and-clinical-symptoms-or-signs-of-parkinson-s-disease
#14
Michalina Malec-Litwinowicz, Andrzej Plewka, Danuta Plewka, Edyta Bogunia, Michał Morek, Andrzej Szczudlik, Michał Szubiga, Monika Rudzińska-Bar
INTRODUCTION: Parkinson disease (PD) is the common neurodegenerative disease. α-Synuclein (ASN), main aggregating protein in neural cells of CNS in PD, was found in peripheral fluids. Testing ASN in plasma is potential test for diagnose PD, but previous studies are controversial. The aim of this study was to investigate if plasma ASN level may be a valuable biomarker, is the level of plasma ASN concentration different in various motor subtypes of diseases, is there a relation between the level of plasma ASN and the severity of motor symptoms...
November 21, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29342318/optical-structural-analysis-of-individual-%C3%AE-synuclein-oligomers
#15
Juan Alberto Varela, Margarida Rodrigues, Suman De, Patrick Flagmeier, Sonia Gandhi, Christopher M Dobson, David Klenerman, Steven Lee
Small aggregates of misfolded proteins play a key role in neurodegenerative disorders. Such species are difficult to study due to the lack of methods capable of resolving these heterogeneous aggregates, which are smaller than the optical diffraction limit. We demonstrate here an all-optical fluorescence microscopy method to characterise the structure of individual protein-aggregates based on the fluorescence anisotropy of dyes such as thioflavin-T, and show that this technology is capable of studying oligomers in human biofluids such as cerebrospinal fluid...
January 17, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29341898/induction-of-alpha-synuclein-pathology-in-the-enteric-nervous-system-of-the-rat-and-non-human-primate-results-in-gastrointestinal-dysmotility-and-transient-cns-pathology
#16
Fredric P Manfredsson, Kelvin C Luk, Matthew J Benskey, Aysegul Guezer, Joanna Garcia, Nathan C Kuhn, Ivette M Sandoval, Joseph R Patterson, Alana O'Mara, Reid Yonkers, Jeffrey H Kordower
Alpha-Synuclein (α-syn) is by far the most highly vetted pathogenic and therapeutic target in Parkinson's disease. Aggregated α-syn is present in sporadic Parkinson's disease, both in the central nervous system (CNS) and peripheral nervous system (PNS). The enteric division of the PNS is of particular interest because 1) gastric dysfunction is a key clinical manifestation of Parkinson's disease, and 2) Lewy pathology in myenteric and submucosal neurons of the enteric nervous system (ENS) has been referred to as stage zero in the Braak pathological staging of Parkinson's disease...
January 13, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29341798/phenolic-constituents-and-inhibitory-effects-of-hibiscus-sabdariffa-l-sorrel-calyx-on-cholinergic-monoaminergic-and-purinergic-enzyme-activities
#17
Ganiyu Oboh, Taiwo M Adewuni, Adedayo O Ademiluyi, Tosin A Olasehinde, Ayokunle O Ademosun
This study revealed the effect of phenolic extract from Hibiscus sabdariffa L. (sorrel) calyx on acetylcholinesterase (AChE), butyrylcholinesterase (BChE), monoamine oxidase (MAO), and ecto-5' nucleotidase (E-NTDase) activities as well as pro-oxidant-induced oxidative damage in rat brain in vitro. Sorrel extract inhibited AChE (EC50 = 46.96 µg/mL), BChE (EC50 = 40.38 µg/mL), MAO (EC50 = 43.69 µg/mL), and E-NTDase (EC50 = 40.52 µg/mL) and stimulated Na+/K+-ATPase (EC50 = 22.01 µg/mL) activities. The phenolic extract also reduced Fe2+- (EC50 = 22...
January 17, 2018: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29341412/3d-neuromelanin-sensitive-magnetic-resonance-imaging-of-the-substantia-nigra-in-parkinson-s-disease
#18
Shweta Prasad, Albert Stezin, Abhishek Lenka, Lija George, Jitender Saini, Ravi Yadav, Pramod Kumar Pal
BACKGROUND: To investigate the diagnostic utility of signal intensity measurement of the substantia nigra pars compacta (SNc) using three dimensional (3D) neuromelanin-sensitive 31MRI, for discrimination of patients with PD from healthy controls. METHODS: T1-weighted neuromelanin sensitive images of 16 patients with PD and 15 controls were quantitatively analyzed by placing circular 10mm2 regions of interest (ROI) over the central and lateral parts of bilateral SNc, and anterior to the cerebral aqueduct at 3 levels of the midbrain...
January 17, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29341130/mitochondrial-function-and-autophagy-integrating-proteotoxic-redox-and-metabolic-stress-in-parkinson-s-disease
#19
REVIEW
Jianhua Zhang, M Lillian Culp, Jason G Craver, Victor Darley-Usmar
Parkinson's disease (PD) is a movement disorder with widespread neurodegeneration in the brain. Significant oxidative, reductive, metabolic, and proteotoxic alterations have been observed in PD postmortem brains. The alterations of mitochondrial function resulting in decreased bioenergetic health is important and needs to be further examined to help develop biomarkers for PD severity and prognosis. It is now becoming clear that multiple hits on metabolic and signaling pathways are likely to exacerbate PD pathogenesis...
January 17, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29340951/a-perspective-on-multi-target-drug-discovery-and-design-for-complex-diseases
#20
Rona R Ramsay, Marija R Popovic-Nikolic, Katarina Nikolic, Elisa Uliassi, Maria Laura Bolognesi
Diseases of infection, of neurodegeneration (such as Alzheimer's and Parkinson's diseases), and of malignancy (cancers) have complex and varied causative factors. Modern drug discovery has the power to identify potential modulators for multiple targets from millions of compounds. Computational approaches allow the determination of the association of each compound with its target before chemical synthesis and biological testing is done. These approaches depend on the prior identification of clinically and biologically validated targets...
January 17, 2018: Clinical and Translational Medicine
keyword
keyword
231
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"