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Non-motor parkinson's disease

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https://www.readbyqxmd.com/read/28527958/treadmill-exercise-produces-neuroprotective-effects-in-a-murine-model-of-parkinson-s-disease-by-regulating-the-tlr2-myd88-nf-%C3%AE%C2%BAb-signaling-pathway
#1
Jung-Hoon Koo, Yong-Chul Jang, Dong-Ju Hwang, Hyun-Seob Um, Nam-Hee Lee, Jae-Hoon Jung, Joon-Yong Cho
Parkinson's disease (PD) is characterized by progressive dopamine depletion and a loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc). Treadmill exercise is a promising non-pharmacological approach for reducing the risk of PD and other neuroinflammatory disorders, such as Alzheimer's disease. The goal of this study was to investigate the effects of treadmill exercise on α-synuclein-induced neuroinflammation and neuronal cell death in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model of PD...
May 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28527315/longitudinal-decline-in-speech-production-in-parkinson-s-disease-spectrum-disorders
#2
Sharon Ash, Charles Jester, Collin York, Olga L Kofman, Rachel Langey, Amy Halpin, Kim Firn, Sophia Dominguez Perez, Lama Chahine, Meredith Spindler, Nabila Dahodwala, David J Irwin, Corey McMillan, Daniel Weintraub, Murray Grossman
We examined narrative speech production longitudinally in non-demented (n=15) and mildly demented (n=8) patients with Parkinson's disease spectrum disorder (PDSD), and we related increasing impairment to structural brain changes in specific language and motor regions. Patients provided semi-structured speech samples, describing a standardized picture at two time points (mean±SD interval=38±24months). The recorded speech samples were analyzed for fluency, grammar, and informativeness. PDSD patients with dementia exhibited significant decline in their speech, unrelated to changes in overall cognitive or motor functioning...
May 17, 2017: Brain and Language
https://www.readbyqxmd.com/read/28526930/micrornas-in-parkinson-s-disease
#3
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/28520722/altered-detrusor-contractility-in-mptp-treated-common-marmosets-with-bladder-hyperreflexia
#4
Sara Pritchard, Michael J Jackson, Atsuko Hikima, Lisa Lione, Christopher D Benham, K Ray Chaudhuri, Sarah Rose, Peter Jenner, Mahmoud M Iravani
Bladder hyperreflexia is a common non-motor feature of Parkinson's disease. We now report on the contractility of the isolated primate detrusor strips devoid of nerve input and show that following MPTP, the amplitude and frequency of spontaneous contraction was increased. These responses were unaffected by dopamine D1 and D2 receptor agonists A77636 and ropinirole respectively. Contractions by exogenous carbachol, histamine or ATP were similar and no differences in the magnitude of noradrenaline-induced relaxation were seen in detrusor strip obtained from normal and MPTP-treated common marmosets (Callithrix jacchus)...
2017: PloS One
https://www.readbyqxmd.com/read/28520498/palliative-care-and-parkinson-s-disease-caregiver-perspectives
#5
Isabel Boersma, Jacqueline Jones, Christina Coughlan, Julie Carter, David Bekelman, Janis Miyasaki, Jean Kutner, Benzi Kluger
BACKGROUND: Palliative care for Parkinson's disease (PD) is an emerging area of interest for clinicians, patients and families. Identifying the palliative care needs of caregivers is central to developing and implementing palliative services for families affected by PD. The objective of this paper was to elicit PD caregiver needs, salient concerns, and preferences for care using a palliative care framework. MATERIALS AND METHODS: 11 PD caregivers and one non-overlapping focus group (n = 4) recruited from an academic medical center and community support groups participated in qualitative semi-structured interviews...
May 18, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28516474/relationship-between-pain-and-motor-and-non-motor-symptoms-in-parkinson-s-disease
#6
G Defazio, A Antonini, M Tinazzi, A F Gigante, S Pietracupa, R Pellicciari, M Bloise, R Bacchin, A Marcante, G Fabbrini, A Berardelli
BACKGROUND AND PURPOSE: Although female gender, depressive symptoms and medical conditions predisposing to pain are more common in patients with Parkinson's disease (PD) with pain, no study has yet explored the relationship between pain and other non-motor symptoms (NMS). METHODS: A total of 321 consecutive patients with PD [190 men/131 women aged 68.3 (SD 9.2) years] attending four Italian movement disorder clinics were studied. Demographic/clinical data were obtained by a standardized interview and the NMS scale...
May 18, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28515684/selegiline-ameliorates-depression-like-behavior-in-mice-lacking-the-cd157-bst1-gene-a-risk-factor-for-parkinson-s-disease
#7
Satoka Kasai, Toru Yoshihara, Olga Lopatina, Katsuhiko Ishihara, Haruhiro Higashida
Parkinson's disease (PD), a neurodegenerative disorder, is accompanied by various non-motor symptoms including depression and anxiety, which may precede the onset of motor symptoms. Selegiline is an irreversible monoamine oxidase-B (MAO-B) inhibitor, and is widely used in the treatment of PD and major depression. However, there are few reports about the effects of selegiline on non-motor symptoms in PD. The aim of this study was to explore the antidepressant and anxiolytic effects of selegiline, using CD157/BST1 knockout (CD157 KO) mouse, a PD-related genetic model displaying depression and anxiety, compared with other antiparkinsonian drugs and an antidepressant, and was to investigate the effects of selegiline on biochemical parameters in emotion-related brain regions...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28513054/is-there-a-common-motor-dysregulation-in-sleepwalking-and-rem-sleep-behaviour-disorder
#8
Mehdi Haridi, Sebastian Weyn Banningh, Marion Clé, Smaranda Leu-Semenescu, Marie Vidailhet, Isabelle Arnulf
This study sought to determine if there is any overlap between the two major non-rapid eye movement and rapid eye movement parasomnias, i.e. sleepwalking/sleep terrors and rapid eye movement sleep behaviour disorder. We assessed adult patients with sleepwalking/sleep terrors using rapid eye movement sleep behaviour disorder screening questionnaires and determined if they had enhanced muscle tone during rapid eye movement sleep. Conversely, we assessed rapid eye movement sleep behaviour disorder patients using the Paris Arousal Disorders Severity Scale and determined if they had more N3 awakenings...
May 17, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28511934/repeated-manganese-administration-produced-abnormal-expression-of-circadian-clock-genes-in-the-hypothalamus-and-liver-of-rats
#9
Huan Li, Ximin Fan, Ying Luo, Sheng Song, Jie Liu, Qiyuan Fan
Manganese (Mn) neurotoxicity displays non-motor dysfunction and motor impairment like Parkinson's disease (PD), and is called as Manganism. Circadian disruption is a non-motor symptom found in PD and Manganism. Clock genes are essential to drive and maintain circadian rhythm, but little is known about Mn exposure on circadian clock genes expression. Both the brain and liver are targets of Mn, we hypothesize that repeated Mn administration could affect clock gene expression in the hypothalamus and livers. Male Sprague-Dawley rats were intraperitoneally injected Mn(2+)1mg and 5mg /kg as MnCl2•4H2O, every other day for 30 days...
May 13, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28511378/cortical-potentials-prior-to-movement-in-parkinson-s-disease
#10
Ashlesh Laxman Patil, Sanjay Kumar Sood, Vinay Goyal, Kanwal Preet Kochhar
INTRODUCTION: Recording cortical potentials prior to movement (bereitschaftspotentials, BP) offer a good non invasive method for studying activity of motor related cortices in Parkinson's Disease (PD). Dopaminergic medications provide some symptomatic relief in advanced stages but they do not stop the progression of the disease. Assessing BP may be a good idea to see the response of anti PD drugs. It remains unclear whether the anti PD medications also improve cortical activity prior to movement even in advanced stages of the disease...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511006/novel-focused-ultrasound-gene-therapy-approach-noninvasively-restores-dopaminergic-neuron-function-in-a-rat-parkinson-s-disease-model
#11
Brian P Mead, Namho Kim, G Wilson Miller, David Hodges, Panagiotis Mastorakos, Alexander L Klibanov, James W Mandell, Jay Hirsh, Jung Soo Suk, Justin Hanes, Richard J Price
Therapies capable of decelerating, or perhaps even halting, neurodegeneration in Parkinson's disease (PD) remain elusive. Clinical trials of PD gene therapy testing the delivery of neurotrophic factors, such as the glial cell-line derived neurotrophic factor (GDNF), have been largely ineffective due to poor vector distribution throughout the diseased regions in the brain. In addition, current delivery strategies involve invasive procedures that obviate the inclusion of early stage patients who are most likely to benefit from GDNF-based gene therapy...
May 18, 2017: Nano Letters
https://www.readbyqxmd.com/read/28510312/the-midbrain-to-pons-ratio-distinguishes-progressive-supranuclear-palsy-from-non-fluent-primary-progressive-aphasias
#12
M Silsby, R Y Tweedie-Cullen, C R Murray, G M Halliday, J R Hodges, J R Burrell
BACKGROUND AND PURPOSE: To determine the clinical utility of the midbrain-to-pons (M/P) ratio as a clinical biomarker of progressive supranuclear palsy (PSP) in patients with non-fluent primary progressive aphasia syndromes. METHODS: Patients with PSP, progressive non-fluent aphasia (PNFA) and logopenic progressive aphasia (LPA) were recruited. Patients were diagnosed clinically, but pathological confirmation was available in a proportion of patients. Midbrain and pons areas were measured using Osirix Lite, a free DICOM viewer...
May 16, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28509934/the-role-of-the-prefrontal-cortex-in-freezing-of-gait-in-parkinson-s-disease-insights-from-a-deep-repetitive-transcranial-magnetic-stimulation-exploratory-study
#13
Moria Dagan, Talia Herman, Anat Mirelman, Nir Giladi, Jeffrey M Hausdorff
Freezing of Gait (FOG) is one of the most debilitating gait impairments in Parkinson's disease (PD), leading to increased fall risk and reduced health-related quality of life. The utility of parkinsonian medications is often limited in the case of FOG and it frequently becomes dopamine resistant. Recent studies have suggested that pre-frontal cortex (PFC) dysfunction contributes to FOG; however, most previous findings provide only indirect evidence. To better understand the role of the PFC, we aimed to investigate the impact of high frequency, deep, repetitive transcranial magnetic stimulation (drTMS) of the medial PFC on FOG and its mediators...
May 16, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28509343/the-influence-of-vascular-risk-factors-on-cognitive-function-in-early-parkinson-s-disease
#14
Maxime Doiron, Mélanie Langlois, Nicolas Dupré, Martine Simard
OBJECTIVES: Hypertension, dyslipidemia, diabetes, and obesity are well-established risk factors for cognitive impairment and dementia in older adults. In contrast, previous studies that have assessed the impact of vascular risk factors (VRFs) on cognition in Parkinson's disease (PD) have had methodological limitations and reported conflicting findings. We address this question in a large well-characterized cohort of de novo PD patients. METHODS: A total of 367 untreated and non-demented patients aged 50 years and older with early PD (H&Y = 1...
May 16, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28507630/relationship-between-gait-parameters-and-postural-stability-in-early-and-late-parkinson-s-disease-and-visual-feedback-based-balance-training-effects
#15
Mohieldin M Ahmed, Douaa M Mosalem, Aziz K Alfeeli, Ayyoub B Baqer, Doaa Youssry Soliman
BACKGROUND: Gait disorders or postural instability has been done before. However, lack of reviews has addressed the relation between gait and postural stability in Parkinson's disease (PD). AIM: The aim was to evaluate the relation between gait parameters and postural stability in early and late stages of PD. MATERIALS AND METHODS: The forty-one idiopathic PD patients were divided into two groups into a group (A) considered as early PD and group (B) considered as late ambulant PD...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28507584/effects-of-adenosine-receptor-antagonists-in-mptp-mouse-model-of-parkinson-s-disease-mitochondrial-dna-integrity
#16
Soha S Essawy, Mona Kamal Tawfik, Horya Erfan Korayem
INTRODUCTION: In Parkinson's disease (PD), compelling data indicate a functional link between adenosine/dopamine receptors and the progression of the neurodegenerative process. The present study was carried out to evaluate the effect of the non-selective adenosine receptor (ADR) antagonist caffeine, as well as the selective antagonists 8-cyclopentyl-1,3-dipropylxanthine (DPCPX), an ADRsA1 antagonist, and ((E)-1,3-diethyl-8-(3,4-dimethoxystyryl)-7-methyl-3,7-dihydro-1H-purine-2,6-dione) (KW-6002), an ADRsA2A antagonist, on the prevention of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinsonism in mice...
April 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28506500/autonomic-and-electrocardiographic-findings-in-parkinson-s-disease
#17
Christopher H Gibbons, David K Simon, Meilin Huang, Barbara Tilley, Michael J Aminoff, Jacquelyn L Bainbridge, Matthew Brodsky, Roy Freeman, John Goudreau, Robert W Hamill, Sheng T Luo, Carlos Singer, Aleksandar Videnovic, Ivan Bodis-Wollner, Pei S Wong
Parkinson disease (PD) is a progressive neurodegenerative disorder characterized by motor and non-motor symptoms and signs. Many reports suggest that diminished heart rate variability occurs early, even prior to the cardinal signs of PD. In a longitudinal study of PD, we evaluated whether heart rate variability (HRV) obtained using a 10-second ECG tracing, and the electrocardiographic QT-interval would be associated with PD severity and progression. Subjects were derived from a longitudinal study of 1741 individuals with early, stable PD...
April 14, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28505982/factors-contributing-to-perceived-walking-difficulties-in-people-with-parkinson-s-disease
#18
Manzur Kader, Susann Ullén, Susanne Iwarsson, Per Odin, Maria H Nilsson
BACKGROUND: While walking difficulties are common in people with Parkinson's disease (PD), little is known about factors that independently contribute to their perceived walking difficulties. OBJECTIVE: To identify factors that independently contribute to perceived walking difficulties in people with PD. METHODS: This study involved 243 (62% men) participants; their mean (min-max) age and PD duration were 70 (45-93) and 8 (1-43) years, respectively...
May 9, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28504022/safinamide-for-the-treatment-of-parkinson-s-disease
#19
Ruth Mary Scott, Anthony Schapira
The major unmet needs in the medical treatment of Parkinson disease (PD) are reduction of motor side effects from dopaminergic drugs, management of non-motor symptoms and disease modification. Motor fluctuations and OFF periods are a significant determinant of quality of life in PD and reducing their duration and severity can significantly improve motor function. This aim may be partly facilitated by the development of effective adjunctive drugs for dopamine replacement. Safinamide (Xadago), which is a first generation anticonvulsant, has pharmacological properties which are of interest in the context of neurodegenerative diseases, leading to research into its potential as an adjunct to levodopa in PD...
May 15, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28502059/dynamics-of-change-in-self-reported-disability-among-persons-with-parkinson-s-disease-after-2%C3%A2-years-of-follow-up
#20
Tatjana Gazibara, Darija Kisic-Tepavcevic, Marina Svetel, Aleksandra Tomic, Iva Stankovic, Vladimir Kostic, Tatjana Pekmezovic
Symptoms of Parkinson's disease (PD) progress over time causing significant disability. Yet, change in disability over shorter time periods has not been entirely understood. The purpose of this study was to assess the Self-Assessment Disability Scale (SADS) in persons with Parkinson's disease (PD) after 2 years of follow-up and compare it with the score observed at baseline. Additionally, we aimed at evaluating association of motor and non-motor PD features at baseline with a higher disability after 2 years of follow-up...
May 13, 2017: Neurological Sciences
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