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https://www.readbyqxmd.com/read/28534003/new-pharmacological-approaches-to-treating-non-motor-symptoms-of-parkinson-s-disease
#1
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/28532582/pain-in-early-stage-parkinson-s-disease-implications-from-clinical-features-to-pathophysiology-mechanisms
#2
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/28528805/acute-response-of-non-motor-symptoms-to-subthalamic-deep-brain-stimulation-in-parkinson-s-disease
#3
Margherita Fabbri, Miguel Coelho, Leonor Correia Guedes, Mario M Rosa, Daisy Abreu, Nilza Gonçalves, Angelo Antonini, Joaquim J Ferreira
BACKGROUND: Subthalamic deep brain stimulation (STN-DBS) is an established treatment for the motor complications of Parkinson's disease (PD) and may have beneficial effects on non-motor symptoms (NMS). However, the acute effect of STN stimulation on NMS has only been explored in small PD cohorts with short post-surgical follow-up. OBJECTIVE: To study NMS response to an acute stimulation challenge in an STN-DBS PD population with a medium/long-term post-surgical follow-up...
May 8, 2017: Parkinsonism & related Disorders
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
#4
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/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/28515949/cerebellum-an-explanation-for-dystonia
#7
REVIEW
Matteo Bologna, Alfredo Berardelli
Dystonia is a movement disorder that is characterized by involuntary muscle contractions, abnormal movements and postures, as well as by non-motor symptoms, and is due to abnormalities in different brain areas. In this article, we focus on the growing number of experimental studies aimed at explaining the pathophysiological role of the cerebellum in dystonia. Lastly, we highlight gaps in current knowledge and issues that future research studies should focus on as well as some of the potential applications of this research avenue...
2017: Cerebellum & Ataxias
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
#8
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/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/28509343/the-influence-of-vascular-risk-factors-on-cognitive-function-in-early-parkinson-s-disease
#10
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/28506500/autonomic-and-electrocardiographic-findings-in-parkinson-s-disease
#11
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
#12
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
#13
Ruth Mary deSouza, 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. Areas covered: 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 23, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28502806/treadmill-exercise-delays-the-onset-of-non-motor-behaviors-and-striatal-pathology-in-the-cag140-knock-in-mouse-model-of-huntington-s-disease
#14
D P Stefanko, V D Shah, W K Yamasaki, G M Petzinger, M W Jakowec
Depression, cognitive impairments, and other neuropsychiatric disturbances are common during the prodromal phase of Huntington's disease (HD) well before the onset of classical motor symptoms of this degenerative disorder. The purpose of this study was to examine the potential impact of physical activity in the form of exercise on a motorized treadmill on non-motor behavioral features including depression-like behavior and cognition in the CAG140 knock-in (KI) mouse model of HD. The CAG140 KI mouse model has a long lifespan compared to other HD rodent models with HD motor deficits emerging after 12months of age and thus provides the opportunity to investigate early life interventions such as exercise on disease progression...
May 11, 2017: Neurobiology of Disease
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
#15
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
https://www.readbyqxmd.com/read/28498087/an-expert-opinion-on-pandas-pans-highlights-and-controversies
#16
Francesca Chiarello, Silvia Spitoni, Eric Hollander, Marco Matucci Cerinic, Stefano Pallanti
OBJECTIVES: 'Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections' (PANDAS) identified a unique subgroup of patients with abrupt onset of obsessive compulsive disorder (OCD) symptoms clinically related to Streptococcus infection and accompanied by neuropsychological and motor symptoms. After almost 20 years, PANDAS has not been accepted as distinct disorder and new criteria for paediatric acute-onset neuropsychiatric syndrome (PANS) have been replaced it, highlighting the fact that several agents rather than only Streptococcus might be involved...
February 13, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28487191/human-lrrk2-g2019s-mutation-represses-post-synaptic-protein-psd95-and-causes-cognitive-impairment-in-transgenic-mice
#17
Samuel O Adeosun, Xu Hou, Baoying Zheng, Heather L Melrose, Thomas Mosley, Jun Ming Wang
BACKGROUND: LRRK2 G2019S mutation is associated with increased kinase activity and is the most common mutation associated with late-onset PD. However, the transgenic mouse model has not recapitulated cardinal PD-related motor phenotypes. Non-motor symptoms of PD including cognitive impairments are very common and may appear earlier than the motor symptoms. The objective of this study was to determine whether human LRRK2 with G2019S mutation causes hippocampus-dependent cognitive deficits in mice Results Male (LRRK2-G2019S) LRRK2-Tg mice showed impairments in the early portion of the Two-day radial arm water maze acquisition trial as well as in the reversal learning on the third day...
May 6, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28486506/an-fmri-study-into-emotional-processing-in-parkinson-s-disease-does-increased-medial-prefrontal-activation-compensate-for-striatal-dysfunction
#18
Anja J H Moonen, Peter H Weiss, Michael Wiesing, Ralph Weidner, Gereon R Fink, Jennifer S A M Reijnders, Wim M Weber, Albert F G Leentjens
BACKGROUND: Apart from a progressive decline of motor functions, Parkinson's disease (PD) is also characterized by non-motor symptoms, including disturbed processing of emotions. This study aims at assessing emotional processing and its neurobiological correlates in PD with the focus on how medicated Parkinson patients may achieve normal emotional responsiveness despite basal ganglia dysfunction. METHODS: Nineteen medicated patients with mild to moderate PD (without dementia or depression) and 19 matched healthy controls passively viewed positive, negative, and neutral pictures in an event-related blood oxygen level-dependent functional magnetic resonance imaging study (BOLD-fMRI)...
2017: PloS One
https://www.readbyqxmd.com/read/28483706/clinical-classification-criteria-for-radicular-pain-caused-by-lumbar-disc-herniation-the-rapidh-criteria-radicular-pain-caused-by-disc-herniation
#19
Stéphane Genevay, Delphine S Courvoisier, Kika Konstantinou, Francisco M Kovacs, Marc Marty, James Rainville, Michael Norberg, Jean-François Kaux, Thomas D Cha, Jeffrey N Katz, Steven J Atlas
CONTEXT: Classification criteria are recommended for diseases that lack specific biomarkers in order to improve homogeneity in clinical research studies. Since imaging evidence of lumbar disc herniations (LDH) may not be associated with symptoms, clinical classification criteria based upon patient symptoms and physical examination findings are required. PURPOSE: This study aimed to produce clinical classification criteria to identify patients with radicular pain caused by LDH...
May 5, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28479587/structure-distribution-and-genetic-profile-of-%C3%AE-synuclein-and-their-potential-clinical-application-in-parkinson-s-disease
#20
Xiaoli Si, Jiali Pu, Baorong Zhang
Parkinson's disease (PD), the second most common neurodegenerative disorder after Alzheimer's disease, is characterized by the loss of nigral dopaminergic neurons. PD leads to a series of clinical symptoms, including motor and non-motor disturbances. α-synuclein, the major component of Lewy bodies, is a hallmark lesion in PD. In this review, we concentrate on presenting the latest research on the structure, distribution, and function of α-synuclein, and its interactions with PD. We also summarize the clinic applications of α-synuclein, which suggest its use as a biomarker, and the latest progress in α-synuclein therapy...
May 2017: Journal of Movement Disorders
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