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https://www.readbyqxmd.com/read/28101650/speech-disorders-in-parkinson-s-disease-early-diagnostics-and-effects-of-medication-and-brain-stimulation
#1
REVIEW
L Brabenec, J Mekyska, Z Galaz, Irena Rektorova
Hypokinetic dysarthria (HD) occurs in 90% of Parkinson's disease (PD) patients. It manifests specifically in the areas of articulation, phonation, prosody, speech fluency, and faciokinesis. We aimed to systematically review papers on HD in PD with a special focus on (1) early PD diagnosis and monitoring of the disease progression using acoustic voice and speech analysis, and (2) functional imaging studies exploring neural correlates of HD in PD, and (3) clinical studies using acoustic analysis to evaluate effects of dopaminergic medication and brain stimulation...
January 18, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28099356/increased-risk-of-parkinson-disease-with-diabetes-mellitus-in-a-population-based-study
#2
Yu-Wan Yang, Teng-Fu Hsieh, Chia-Ing Li, Chiu-Shong Liu, Wen-Yuan Lin, Jen-Huai Chiang, Tsai-Chung Li, Cheng-Chieh Lin
This nationwide population-based study investigated the risk of Parkinson disease (PD) in relation to diabetes mellitus (DM) through the National Health Insurance Research Database in Taiwan.A retrospective study was conducted, consisting of 36,294 patients who were newly diagnosed with DM between January 1, 2000 and December 31, 2006 and 108,882 individuals without DM as healthy controls from insurance claims data from Taiwan's National Health Research Institutes Dataset. The subjects were followed up until December 31, 2011 or until the first manifestation of PD...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099340/clinical-effectiveness-of-acupuncture-on-parkinson-disease-a-prisma-compliant-systematic-review-and-meta-analysis
#3
Sook-Hyun Lee, Sabina Lim
BACKGROUND: Parkinson's disease (PD) is the second-most-common chronic and progressive neurodegenerative disease. The long-term use of levodopa leads to a loss of efficacy and to complications. Therefore, many patients with PD have turned to complementary therapies to help relieve their symptoms. Acupuncture is most commonly used as a complementary therapy in patients with PD. This paper presents a systematic review and meta-analysis of the effects of acupuncture for patients with PD...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28095073/preclinical-and-potential-applications-of-common-western-herbal-supplements-as-complementary-treatment-in-parkinson-s-disease
#4
Luke A Morgan, Oliver Grundmann
Parkinson's disease (PD) is a neurological disorder with a complex pathological etiology, which is not fully understood. Progression of PD may be the result of a buildup of iron in the substantia nigra, microglia-mediated neuroinflammation, dysfunctional mitochondria, or abnormal protein handling. Dopamine is the main neurotransmitter affected, but as the disease progresses, a decrease in all the brain's biogenic amines occurs. Current medication used in the treatment of PD aims to prevent the breakdown of dopamine or increase dopaminergic neurotransmission in the central nervous system...
January 17, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28093795/the-natural-history-of-pure-autonomic-failure-a-u-s-prospective-cohort
#5
Horacio Kaufmann, Lucy Norcliffe-Kaufmann, Jose-Alberto Palma, Italo Biaggioni, Phillip A Low, Wolfgang Singer, David S Goldstein, Amanda C Peltier, Cyndia A Shibao, Christopher H Gibbons, Roy Freeman, David Robertson
OBJECTIVE: To define the clinical features and biomarkers that predict which patients with pure autonomic failure will develop Parkinson disease, dementia with Lewy bodies, or multiple system atrophy. METHODS: One hundred patients who presented with pure autonomic failure were recruited at 5 medical centers in the U.S. Seventy-four patients agreed to be followed prospectively. Patients underwent clinical evaluations including neurological rating scales, sleep questionnaires, smell test, and sympathetic and parasympathetic cardiovascular autonomic function tests...
January 17, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28092807/application-of-the-dreadd-technique-in-biomedical-brain-research
#6
REVIEW
Grzegorz Dobrzanski, Małgorzata Kossut
The DREADD (Designer Receptors Exclusively Activated by Designer Drugs) technique is a new chemogenetic approach allowing for selective and remote control of neural activity with a high degree of spatial resolution. Since its discovery in 2007 the DREADD technique was successfully employed into basic research, and together with the optogenetic method provided so far the best tool to influence the activity of the brain circuits and cell populations. The first aim of this review was to concisely describe the technique with regard to such issues like the history of its development, biochemistry as well as modes of the designer receptors delivery and expression...
October 29, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28088795/influence-of-intracranial-air-on-electrode-position-and-clinical-outcomes-following-deep-brain-stimulation-for-parkinson-s-disease
#7
J Nicole Bentley, Zhe Guan, Karen S Cummings, Kelvin L Chou, Parag G Patil
BACKGROUND: The introduction of intracranial air during deep brain stimulation (DBS) surgery is believed to negatively impact targeting accuracy and clinical outcomes. OBJECTIVE: To quantify the relationship between intracranial air (ICA) volumes, targeting accuracy, and clinical outcomes in patients undergoing subthalamic nucleus (STN) DBS for Parkinson's disease. METHODS: ICA in 73 consecutive STN DBS cases (146 leads) was measured by high-resolution CT and correlated with proximal lead bowing, electrode displacement, targeting accuracy, and clinical outcomes at 6 and 12 months...
January 14, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28074748/possible-parkinson-s-disease-induced-by-chronic-manganese-supplement-ingestion
#8
Michael J Schuh
OBJECTIVE: The objective is to report a case of possible neurotoxicity resulting from an incorrect dietary supplement for osteoporosis taken at a toxic dose. SUMMARY: The case study examined here is a 37-year-old African-American female who consumed excessive manganese over a period of years, resulting in Parkinson's disease (PD). This patient was referred to the pharmacist pharmacotherapy service by a neurology physician. PD has been shown in the medical literature to be caused by chronic exposure to high levels of manganese...
December 1, 2016: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/28073788/dopamine-controls-parkinson-s-tremor-by-inhibiting-the-cerebellar-thalamus
#9
Michiel F Dirkx, Hanneke E M den Ouden, Esther Aarts, Monique H M Timmer, Bastiaan R Bloem, Ivan Toni, Rick C Helmich
Parkinson's resting tremor is related to altered cerebral activity in the basal ganglia and the cerebello-thalamo-cortical circuit. Although Parkinson's disease is characterized by dopamine depletion in the basal ganglia, the dopaminergic basis of resting tremor remains unclear: dopaminergic medication reduces tremor in some patients, but many patients have a dopamine-resistant tremor. Using pharmacological functional magnetic resonance imaging, we test how a dopaminergic intervention influences the cerebral circuit involved in Parkinson's tremor...
January 9, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28073650/the-utilisation-of-one-district-hospital-emergency-department-by-people-with-parkinson-s-disease
#10
Marion Harris, Margaret Fry
BACKGROUND: Parkinson's disease (PD) is the second most common neurodegenerative disorder in Australia and the economic burden is more than $8.3 billion a year and predicted to escalate. However, little is known of the trends and characteristics of people with Parkinson's disease presenting to emergency departments (ED). METHOD: The study design was a 12 month retrospective medical record audit. The study was conducted in one metropolitan 300 bed district hospital in an outer suburb of Sydney...
January 7, 2017: Australasian Emergency Nursing Journal: AENJ
https://www.readbyqxmd.com/read/28067307/fluorescent-gold-nanoclusters-for-selective-detection-of-dopamine-in-cerebrospinal-fluid
#11
Saravanan Govindaraju, Seshadri Reddy Ankireddy, Buddolla Viswanath, Jongsung Kim, Kyusik Yun
Since the last two decades, protein conjugated fluorescent gold nanoclusters (NCs) owe much attention in the field of medical and nanobiotechnology due to their excellent photo stability characteristics. In this paper, we reported stable, nontoxic and red fluorescent emission BSA-Au NCs for selective detection of L-dopamine (DA) in cerebrospinal fluid (CSF). The evolution was probed by various instrumental techniques such as UV-vis spectroscopy, High resolution transmission electron microscopy (HTEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), photoluminescence spectroscopy (PL)...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065403/medication-errors-in-parkinson-s-disease-inpatients-in-the-basque-country
#12
Unax Lertxundi, Arantxa Isla, María Ángeles Solinís, Saioa Domingo- Echaburu, Rafael Hernandez, Javier Peral-Aguirregoitia, Juan Medrano, Juan Carlos García-Moncó
INTRODUCTION: Parkinson's disease (PD) medication errors, including both missing dopaminergic drug doses and antidopaminergic usage, have been suggested as risk factors for prolonged hospital stays. The objective of this study was to evaluate the prevalence of such errors in PD patients admitted to public acute-care hospitals in the Basque Country over a two year period and their association with clinically relevant adverse health outcomes, such as length of hospital stay and mortality...
December 31, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28064330/blockade-of-fast-a-type-and-tea-sensitive-potassium-channels-provide-an-antiparkinsonian-effect-in-a-6-ohda-animal-model
#13
Hashem Haghdoost-Yazdi, Hossein Piri, Reza Najafipour, Ayda Faraji, Negin Fraidouni, Tahereh Dargahi, Mahmud Alipour Heidari
OBJECTIVE: To evaluate the effect of K+ channels inhibitors in treatment of parkinson`s disease (PD). METHODS: This prospective comparative study was conducted in the Qazvin University of Medical Sciences, Iran, from April 2015 to January 2016. Male rats (n=37) received intraperitoneal doses of TEA (2 and 5 mg/kg) or 4-AP (0.5 and 1 mg/kg) twice-daily, before a stereotactic injection of 6-hydroxydopamine (6-OHDA) for the following 7 days. The 6-OHDA was injected into right medial forebrain bundle (MFB) of the rat brains...
January 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/28063683/diphasic-dyskinesias-during-levodopa-carbidopa-intestinal-gel-lcig-infusion-in-parkinson-s-disease
#14
Meloni Mario, Solla Paolo, Mascia Mario Marcello, Marrosu Francesco, Cannas Antonino
OBJECTIVES: Levodopa-carbidopa intestinal gel infusion (LCIG) is indicated in patients with advanced levodopa-responsive Parkinson's disease (PD) for the treatment of motor fluctuations and dyskinesias. Here we describe 4 PD patients who developed disabling diphasic dyskinesias after LCIG initiation. METHODS: The clinical data of 33 PD patients consecutively treated with LCIG therapy were obtained through direct clinical observation and detailed review of medical records...
December 31, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28062560/the-amyloid-phenomenon-and-its-links-with-human-disease
#15
Christopher M Dobson
The ability of normally soluble proteins to convert into amyloid fibrils is now recognized to be a generic phenomenon. The overall cross-β architecture of the core elements of such structures is closely similar for different amino acid sequences, as this architecture is dominated by interactions associated with the common polypeptide main chain. In contrast, the multiplicity of complex and intricate structures of the functional states of proteins is dictated by specific interactions involving the variable side chains, the sequence of which is unique to a given protein...
January 6, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28061924/asymptomatic-wolff-parkinson-white-pattern-ecg-in-usaf-aviators
#16
Eddie D Davenport, Karen A N Rupp, Edwin Palileo, Jared Haynes
INTRODUCTION: Wolff-Parkinson-White (WPW) pattern is occasionally found in asymptomatic aviators during routine ECGs. Aeromedical concerns regarding WPW pattern include risk of dysrhythmia or sudden cardiac death (SCD), thus affecting the safety of flight. The purpose of this study was to determine the prevalence and outcomes of aviators with asymptomatic WPW pattern and assess for risk factors that contribute to progression to dysrhythmia or symptoms. METHODS: The U...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28061431/effect-of-subthalamic-nucleus-deep-brain-stimulation-on-balance-in-parkinson-s-disease-a-static-posturographic-analysis
#17
Beatriz De la Casa-Fages, Fernando Alonso-Frech, Francisco Grandas
BACKGROUND: The effect of subthalamic deep brain stimulation on balance in Parkinson's disease remains unclear. OBJECTIVE: To evaluate the effect of subthalamic nucleus stimulation on balance in Parkinson's disease using posturography. METHODS: 16 patients (9 women) who underwent subthalamic deep brain stimulation [mean age 59.6 years (46-70); mean disease duration 15.6 years (7-25); mean duration of subthalamic stimulation 32.1 months (3...
December 29, 2016: Gait & Posture
https://www.readbyqxmd.com/read/28058727/exppning-how-acetylcholine-improves-gait-in-parkinson-s-disease-an-editorial-highlight-for-deletion-of-the-vesicular-acetylcholine-transporter-from-pedunculopontine-laterodorsal-tegmental-neurons-modifies-gait
#18
EDITORIAL
Björn Falkenburger
Gait impairment is one of the most intractable symptoms of Parkinson's disease, responding poorly to dopaminergic medication. Promising therapeutic strategies include deep brain stimulation (DBS) of the pedunculopontine nucleus (PPN) and enhancing cholinergic neurotransmission by acetylcholine esterase inhibitors. This Editorial discusses an elegant study by Janickova and coworkers in the current issue of the Journal of Neurochemistry, in which the authors engineered mice lacking cholinergic transmission selectively in the PPN and demonstrate that cholinergic neurons of the PPN are critical for gait...
January 6, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28051884/the-risk-factors-and-pattern-of-cerebral-microbleeds-in-parkinson-s-disease
#19
Dian He, Chun-Feng Liu, Lan Chu, Ya Li, Da-Fei Xu, Ling Jiao
BACKGROUND AND PURPOSE: Cerebral microbleeds (CMBs) in Parkinson's disease (PD) have been reported recently and concerned increasingly. Our aim was to investigate the risk factors and pattern of CMBs in patients with PD, as well as the influence of risk factors on the pattern of CMBs. METHODS: We retrospectively collected medical and imaging data of 247 patients who underwent brain susceptibility-weighted imaging (SWI). Logistic regression analyses were performed to determine the risk factors of CMBs...
January 4, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28042767/advantages-of-structure-based-drug-design-approaches-in-neurological-disorders
#20
Murali Aarthy, Umesh Panwar, Chandrabose Selvaraj, Sanjeev Kumar Singh
The nerve impulse that function during abnormal or due in illness may due to several genetic factors, metabolic, biological conditions or environmental components denominated as Neuro-biological disorders. This illness occurs mostly due to the innumerable biological modifications that alters the mechanistic condition of the brain. As per current update, more than a millions of people around the world are suffering through various kinds of neurological disorders. In case, 50 million people with Epilepsy, 35 million with dementia, mainly included Alzheimer's disease and the rest of other cases with Parkinson's, Migraine and Stroke...
2, 2017: Current Neuropharmacology
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