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Parkinson's review

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https://www.readbyqxmd.com/read/28534084/the-emerging-link-between-o-glcnacylation-and-neurological-disorders
#1
REVIEW
Xiaofeng Ma, He Li, Yating He, Junwei Hao
O-linked β-N-acetylglucosaminylation (O-GlcNAcylation) is involved in the regulation of many cellular cascades and neurological diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), and stroke. In the brain, the expression of O-GlcNAcylation is notably heightened, as is that of O-linked N-acetylglucosaminyltransferase (OGT) and β-N-acetylglucosaminidase (OGA), the presence of which is prominent in many regions of neurological importance. Most importantly, O-GlcNAcylation is believed to contribute to the normal functioning of neurons; conversely, its dysregulation participates in the pathogenesis of neurological disorders...
May 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28534003/new-pharmacological-approaches-to-treating-non-motor-symptoms-of-parkinson-s-disease
#2
Michael A Kelberman, Elena M Vazey
PURPOSE OF REVIEW: Non-motor symptoms in patients with Parkinson's Disease (PD) are better predictors of quality of life changes, caregiver burden, and mortality than motor symptoms. Levodopa has limited, and sometimes detrimental, effects on these symptoms. In this review we discuss recent evidence on pharmacological treatments for non-motor symptoms. RECENT FINDINGS: Breakthroughs have been made in the treatment of psychosis and sleep dysfunction. Pimavanserin has become the first FDA approved drug for PD psychosis...
December 2016: Current Pharmacology Reports
https://www.readbyqxmd.com/read/28533935/a-review-of-the-emerging-potential-therapy-for-neurological-disorders-human-embryonic-stem-cell-therapy
#3
REVIEW
Geeta Shroff, Jyoti Dhanda Titus, Rhea Shroff
The first human embryonic stem cell (hESC) line was developed in the late nineties. hESCs are capable of proliferating indefinitely and differentiate into all the three embryonic germ layers. Further, the differentiation of hESC lines into neural precursor cells and neurons, astrocytes and oligodendrocytes showed their potential in treating several incurable neurological disorders such as spinal cord injury (SCI), cerebral palsy (CP), Parkinson's disease (PD). In this review, we will discuss the global scenario of research and therapeutic use of hESCs in the treatment of neurological disorders...
2017: American Journal of Stem Cells
https://www.readbyqxmd.com/read/28532886/the-effects-of-tai-chi-on-physical-function-and-well-being-among-persons-with-parkinson-s-disease-a-systematic-review
#4
Klaudia J Ćwiękała-Lewis, Matthew Gallek, Ruth E Taylor-Piliae
Current medical treatments for Parkinson's disease (PD) are mainly palliative, though research indicates Tai Chi exercise improves physical function and well-being. An electronic database search of PubMed, CINAHL, Web of Science, Cochrane Library, PsycINFO and Embase was conducted, to examine current scientific literature for potential benefits of Tai Chi on physical function and well-being among persons with PD. A total of 11 studies met the inclusion criteria: 7 randomized clinical trials and 4 quasi-experimental studies...
April 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28532582/pain-in-early-stage-parkinson-s-disease-implications-from-clinical-features-to-pathophysiology-mechanisms
#5
REVIEW
Ming-Tsung Tseng, Chin-Hsien Lin
Pain is a common non-motor symptom of Parkinson's disease (PD) that markedly impacts patients' quality of life. Although pain occurs mostly secondary to motor disability of PD, pain may antedate motor symptoms by years. Numerous studies have shown that PD patients manifest altered sensory and pain thresholds compared with control subjects. Although both levodopa and deep brain stimulation improve motor symptoms, there remains no direct correlation between motor improvement and altered pain sensitivity, suggesting that motor symptoms and pain do not necessarily share pathogenetic mechanisms...
May 19, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28529878/neuroimaging-in-pre-motor-parkinson-s-disease
#6
REVIEW
Thomas R Barber, Johannes C Klein, Clare E Mackay, Michele T M Hu
The process of neurodegeneration in Parkinson's disease begins long before the onset of clinical motor symptoms, resulting in substantial cell loss by the time a diagnosis can be made. The period between the onset of neurodegeneration and the development of motoric disease would be the ideal time to intervene with disease modifying therapies. This pre-motor phase can last many years, but the lack of a specific clinical phenotype means that objective biomarkers are needed to reliably detect prodromal disease...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28529827/deviant-lysosomal-ca-2-signalling-in-neurodegeneration-an-introduction
#7
Sandip Patel
Lysosomes are key acidic Ca(2+) stores. The principle Ca(2+)-permeable channels of the lysosome are TRP mucolipins (TRPMLs) and NAADP-regulated two-pore channels (TPCs). Recent studies, reviewed in this collection, have linked numerous neurodegenerative diseases to both gain and loss of function of TRPMLs/TPCs, as well as to defects in acidic Ca(2+) store content. These diseases span rare lysosomal storage disorders such as Mucolipidosis Type IV and Niemann-Pick disease, type C, through to more common ones such as Alzheimer and Parkinson disease...
June 1, 2016: Messenger
https://www.readbyqxmd.com/read/28529730/effect-of-low-versus-high-frequency-stimulation-on-freezing-of-gait-and-other-axial-symptoms-in-parkinson-patients-with-bilateral-stn-dbs-a-mini-review
#8
REVIEW
Tao Xie, Mahesh Padmanaban, Lisa Bloom, Ellen MacCracken, Breanna Bertacchi, Abraham Dachman, Peter Warnke
Some studies have shown that low frequency stimulation (LFS, most commonly 60 Hz), compared to high frequency stimulation (HFS, most commonly 130 Hz), has beneficial effects, short-term or even long-term, on improving freezing of gait (FOG) and other axial symptoms, including speech and swallowing function, in Parkinson disease (PD) patients with bilateral subthalamic nucleus deep brain stimulation (STN DBS). However, other studies failed to confirm this. It seems not clear what determines the difference in response to LFS...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28528896/clinical-effects-of-air-pollution-on-the-central-nervous-system-a-review
#9
REVIEW
Robin M Babadjouni, Drew M Hodis, Ryan Radwanski, Ramon Durazo, Arati Patel, Qinghai Liu, William J Mack
The purpose of this review is to describe recent clinical and epidemiological studies examining the adverse effects of urban air pollution on the central nervous system (CNS). Air pollution and particulate matter (PM) are associated with neuroinflammation and reactive oxygen species (ROS). These processes affect multiple CNS pathways. The conceptual framework of this review focuses on adverse effects of air pollution with respect to neurocognition, white matter disease, stroke, and carotid artery disease. Both children and older individuals exposed to air pollution exhibit signs of cognitive dysfunction...
May 18, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28527591/the-role-of-astrocyte-dysfunction-in-parkinson-s-disease-pathogenesis
#10
REVIEW
Heather D E Booth, Warren D Hirst, Richard Wade-Martins
Astrocytes are the most populous glial subtype and are critical for brain function. Despite this, historically there have been few studies into the role that they may have in neurodegenerative diseases, such as Parkinson's disease (PD). Recently, however, several studies have determined that genes known to have a causative role in the development of PD are expressed in astrocytes and have important roles in astrocyte function. Here, we review these recent developments and discuss their impact on our understanding of the pathophysiology of PD, and the implications that this might have for its treatment...
May 17, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28526930/micrornas-in-parkinson-s-disease
#11
REVIEW
Abhishek Singh, Dwaipayan Sen
Parkinson's disease is the second most common neurodegenerative disease commonly affecting the older population. Loss of dopaminergic neurons in the substantia nigra of brain leads to impairment of motor activities as well as cognitive defects. There are many underlying causes to this disease, both genetic and epigenetic, which are yet to be fully explored. Non-coding RNAs are significant part of our genome and are involved in various cellular processes. MicroRNAs, which are small non-coding RNAs having 20-22 nucleotides, are involved in many underlying mechanisms of pathogenesis of several neurodegenerative diseases including Parkinson's...
May 19, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28526642/-asleep-deep-brain-stimulation-surgery-a-critical-review-of-the-literature
#12
REVIEW
Tsinsue Chen, Zaman Mirzadeh, Francisco A Ponce
OBJECTIVE: Although performing deep brain stimulation (DBS) with the patient under general anesthesia without microelectrode recording (MER) or intraoperative test stimulation (ITS) for movement disorders ("asleep" DBS) has become increasingly popular, its feasibility is based on the untested assumption that stereotactic accuracy correlates with positive clinical outcomes. To investigate outcomes after asleep DBS without MER or neurophysiological testing, we reviewed the medical literature on the topic...
May 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28526239/cellular-models-as-tools-for-the-study-of-the-role-of-alpha-synuclein-in-parkinson-s-disease
#13
REVIEW
Diana F Lázaro, Maria Angeliki S Pavlou, Tiago Fleming Outeiro
Neurodegenerative diseases are highly debilitating conditions characterised primarily by progressive neuronal loss and impairment of the nervous system. Parkinson's disease (PD) is one of the most common of these disorders, affecting 1-2% of the population above the age of 65. Although the underlying mechanisms of PD have been extensively studied, we still lack a full understanding of the molecular underpinnings of the disease. Thus, the in vitro and in vivo models currently used are able to only partially recapitulate the typical phenotypes of the disease...
May 16, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28525887/an-updated-meta-analysis-of-amantadine-for-treating-dyskinesia-in-parkinson-s-disease
#14
Min Kong, Maowen Ba, Chao Ren, Ling Yu, Shengjie Dong, Guoping Yu, Hui Liang
In recent years, a few of randomized controlled trials (RCTs) about amantadine for treating dyskinesia in Parkinson's disease (PD) were completed. Here, we conducted a systematic literature review about the clinical research to provide the updated evidence for treating dyskinesia. Electronic search of Medline, PubMed, Cochrane Library, and other databases up to May 2016 for relevant studies was performed. We selected the Unified Parkinson's Disease Rating Scale IV (UPDRS IV) and Dyskinesia Rating Scales (DRS) as efficacy outcomes of amantadine on dyskinesia...
May 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523558/epigenome-editing-in-the-brain
#15
Pavel Bashtrykov, Albert Jeltsch
Epigenome editing aims for an introduction or removal of chromatin marks at a defined genomic region using artificial EpiEffectors resulting in a modulation of the activity of the targeted functional DNA elements. Rationally designed EpiEffectors consist of a targeting DNA-binding module (such as a zinc finger protein, TAL effector, or CRISPR/Cas complex) and usually, but not exclusively, a catalytic domain of a chromatin-modifying enzyme. Epigenome editing opens a completely new strategy for basic research of the central nervous system and causal treatment of psychiatric and neurological diseases, because rewriting of epigenetic information can lead to the direct and durable control of the expression of disease-associated genes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28522986/retinal-ganglion-cells-and-circadian-rhythms-in-alzheimer-s-disease-parkinson-s-disease-and-beyond
#16
REVIEW
Chiara La Morgia, Fred N Ross-Cisneros, Alfredo A Sadun, Valerio Carelli
There is increasing awareness on the role played by circadian rhythm abnormalities in neurodegenerative disorders such as Alzheimer's disease (AD) and Parkinson's disease (PD). The characterization of the circadian dysfunction parallels the mounting evidence that the hallmarks of neurodegeneration also affect the retina and frequently lead to loss of retinal ganglion cells (RGCs) and to different degrees of optic neuropathy. In the RGC population, there is the subgroup of cells intrinsically photosensitive and expressing the photopigment melanopsin [melanopsin-containing retinal ganglion cells (mRGCs)], which are now well known to drive the entrainment of circadian rhythms to the light-dark cycles...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28522290/somatization-in-parkinson-s-disease-a-systematic-review
#17
REVIEW
Danilo Carrozzino, Per Bech, Chiara Patierno, Marco Onofrj, Bo Mohr Morberg, Astrid Thomas, Laura Bonanni, Mario Fulcheri
The current systematic review study is aimed at critically analyzing from a clinimetric viewpoint the clinical consequence of somatization in Parkinson's Disease (PD). By focusing on the International Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we conducted a comprehensive electronic literature research strategy on ISI Web-of-Science, PsychINFO, PubMed, EBSCO, ScienceDirect, MEDLINE, Scopus, and Google Scholar databases. Out of 2.926 initial records, only a total of 9 studies were identified as clearly relevant and analyzed in this systematic review...
May 15, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28521682/repurposing-of-copper-ii-chelating-drugs-for-the-treatment-of-neurodegenerative-diseases
#18
Valeria Lanza, Danilo Milardi, Giuseppe Di Natale, Giuseppe Pappalardo
BACKGROUND: There is mounting urgency to find new drugs for the treatment of neurodegenerative disorders. A large number of reviews has exhaustively described either the molecular or clinical aspects of neurodegenerative diseases as Alzheimer's (AD) and Parkinson's (PD). Conversely, reports outlining how known drugs in use for other diseases can be also effective as therapeutic agents in neurodegenerative diseases are less reported. This review focuses on the current uses of some copper(II) interacting molecules as potential drug candidates in neurodegeneration...
May 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28520623/the-sub-crestal-iliac-screw-a-technical-note-describing-a-free-hand-in-line-low-profile-iliac-screw-insertion-technique-to-avoid-side-connector-use-and-reduce-implant-complications
#19
Gabriel Liu, Muhammed Yaser Hasan, Hee-Kit Wong
STUDY-DESIGN: Case-series. OBJECTIVE: Report our modified iliac-screw insertion technique and its clinical outcomes. SUMMARY OF BACKGROUND DATA: Iliac-screws are one of the preferred methods for modern spinopelvic-fixation. However the technique is not without complications, predominantly due to iliac-screw head prominence, leading to pain and revisions. Conventional iliac-screw entry point is sited superficially at the posterior-superior-iliac-spine (PSIS) contributing to screw-head prominence...
May 17, 2017: Spine
https://www.readbyqxmd.com/read/28520598/imaging-plus-x-multimodal-models-of-neurodegenerative-disease
#20
Neil P Oxtoby, Daniel C Alexander
PURPOSE OF REVIEW: This article argues that the time is approaching for data-driven disease modelling to take centre stage in the study and management of neurodegenerative disease. The snowstorm of data now available to the clinician defies qualitative evaluation; the heterogeneity of data types complicates integration through traditional statistical methods; and the large datasets becoming available remain far from the big-data sizes necessary for fully data-driven machine-learning approaches...
May 16, 2017: Current Opinion in Neurology
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