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Balance and parkinson's disease

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https://www.readbyqxmd.com/read/29148896/prooxidant-antioxidant-balance-advanced-oxidation-protein-products-and-lipid-peroxidation-in-serbian-patients-with-parkinson-s-disease
#1
Jadranka Miletić, Dunja Drakulić, Snežana Pejić, Marijana Petković, Tihomir V Ilić, Milica Miljković, Aleksandra Stefanović, Milica Prostran, Marina Stojanov
BACKGROUND: Biomarkers of oxidative stress are relevant in the evaluation of the disease status and prooxidant-antioxidant balance, advanced oxidation protein products and lipid peroxidation products (malondialdehyde and 4-hydroxynonenal) are being extensively evaluated regarding their relationship with clinical presentation and disease severity. The aim of study was to evaluate the levels of above mentioned parameters in plasma of 39 men and 17 women with Parkinson's disease, originated from the Republic of Serbia and their relation to clinicopathological characteristics (gender, age at examination, duration of the disease, and Hoehn and Yahr score) and oxidative status...
November 17, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29148136/effects-of-sensitive-electrical-stimulation-based-somatosensory-cueing-in-parkinson-s-disease-gait-and-freezing-of-gait-assessment
#2
Benoît Sijobert, Christine Azevedo, David Andreu, Claudia Verna, Christian Geny
This study aims to investigate the effect of a somatosensory cueing on gait disorders in subjects with Parkinson's disease (PD). After having performed stepping in place and timed up and go assessing tasks, 13 participants with PD were equipped with an electrical stimulator and an inertial measurement unit (IMU) located under the lateral malleolus on the sagittal plane. Electrodes were positioned under the arch of the foot and electrical stimulation (ES) parameters (five 500 µs/phase charge-balanced biphasic pulses delivered at 200 Hz, repeated four times at 10 Hz) adjusted to deliver a sensitive signal...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29144106/cognitive-reserve-as-a-variable-impacting-the-effectiveness-of-rehabilitation-on-balance-in-parkinson-s-disease
#3
Giulia Piccinini, Isabella Imbimbo, Diego Ricciardi, Daniele Coraci, Claudia Santilli, Maria R Lo Monaco, Claudia Loreti, Maria C Vulpiani, Maria C Silveri, Luca Padua
BACKGROUND: Cognitive reserve (CR) can be considered an active expression of brain resilience in response to damage. Several studies have shown the influence of CR on cognitive impairment and its relationship with cognitive function in Parkinson's disease (PD). AIM: To show if CR influences the effectiveness of balance rehabilitation in PD patients who performed a conventional rehabilitative treatment. DESIGN: Observational longitudinal study...
November 16, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29138676/resveratrol-modulation-of-protein-expression-in-parkin-mutant-human-skin-fibroblasts-a-proteomic-approach
#4
Daniele Vergara, Antonio Gaballo, Anna Signorile, Anna Ferretta, Paola Tanzarella, Consiglia Pacelli, Marco Di Paola, Tiziana Cocco, Michele Maffia
In this study, we investigated by two-dimensional gel electrophoresis (2-DE) and mass spectrometry (MS) analysis the effects of resveratrol treatment on skin primary fibroblasts from a healthy subject and from a parkin-mutant early onset Parkinson's disease patient. Parkin, an E3 ubiquitin ligase, is the most frequently mutated gene in hereditary Parkinson's disease. Functional alteration of parkin leads to impairment of the ubiquitin-proteasome system, resulting in the accumulation of misfolded or aggregated proteins accountable for the neurodegenerative process...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29109055/characterization-of-oromotor-and-limb-motor-dysfunction-in-the-dj1-model-of-parkinson-disease
#5
Katie M Yang, Katherine V Blue, Haleigh M Mulholland, Meghna P Kurup, Cynthia A Kelm-Nelson, Michelle R Ciucci
Parkinson disease (PD) is devastating to sensorimotor function that includes cranial/oromotor and limb motor deficits. However, the onset, progression, and neural correlates of PD-related dysfunctions are poorly understood. To address this gap, we used a genetic rat model of PD, DJ1 -/-, and hypothesized that motor deficits would manifest early in the disease process, be progressive in nature, and be related to pathologies in brainstem structures associated with sensorimotor function. The present study compares homozygous DJ1 -/- male rats to age-matched wild type controls...
November 3, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29102438/prediction-of-falls-in-subjects-suffering-from-parkinson-s-disease-multiple-sclerosis-and-stroke
#6
Ettore Beghi, Elisa Gervasoni, Elisabetta Pupillo, Elisa Bianchi, Angelo Montesano, Irene Aprile, Michela Agostini, Marco Rovaris, Davide Cattaneo
OBJECTIVE: To compare the risk of falls and fall predictors in patients with Parkinson's disease (PD), multiple sclerosis (MS) and stroke using the same study design. DESIGN: Multicenter prospective cohort study. SETTING: Three [masked] institutions for physical therapy and rehabilitation. PARTICIPANTS: Patients with PD, MS and stroke seen for rehabilitation. MAIN OUTCOME MEASURES: Functional scales were applied to investigate balance, disability, daily performance, self-confidence with balance, and social integration...
November 1, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29100808/mitochondrial-bioenergetics-and-locomotor-activity-are-altered-in-zebrafish-danio-rerio-after-exposure-to-the-bipyridylium-herbicide-diquat
#7
Xiao H Wang, Christopher L Souders, Yuan H Zhao, Christopher J Martyniuk
Diquat is a non-selective bipyridylium herbicide which has replaced its sister compound paraquat, as paraquat is associated to an increased risk for Parkinson's disease. However, the propensity of diquat to propagate reactive oxygen species ensures that diquat remains an exposure risk in non-target organisms. In this study, zebrafish (Danio rerio) embryos were exposed to diquat (1, 10, 100μM) beginning at ∼6hours post fertilization for up to 7days to learn more about the mechanisms underlying diquat toxicity during vertebrate development...
October 31, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/29100107/order-and-disorder-in-the-physiological-membrane-binding-of-%C3%AE-synuclein
#8
REVIEW
Giuliana Fusco, Maximo Sanz-Hernandez, Alfonso De Simone
α-Synuclein (αS) is a neuronal protein that localises predominantly at the presynaptic terminals, and whose fibrillar aggregates are the major constituents of Lewy bodies in Parkinson's disease. In vivo αS is partitioned between water-soluble and membrane-bound states, and this highly regulated equilibrium influences its biological behaviour under both physiological and pathological conditions. Here we discuss the sequence and structural determinants underlying the transition between the unstructured cytosolic and partially structured membrane-bound states of αS...
October 27, 2017: Current Opinion in Structural Biology
https://www.readbyqxmd.com/read/29096672/the-effects-of-yoga-versus-stretching-and-resistance-training-exercises-on-psychological-distress-for-people-with-mild-to-moderate-parkinson-s-disease-study-prxotocol-for-a-randomized-controlled-trial
#9
JoJo Yan Yan Kwok, Jackie Cheuk Yin Kwan, Man Auyeung, Vincent Chung Tong Mok, Helen Yue Lai Chan
BACKGROUND: Psychological distress is prevalent among people with Parkinson's disease (PD) and aggravates their motor symptoms, thereby leading to increased disability, high healthcare costs, and poor health-related quality of life (HRQoL). The under-recognition and adverse effects of the pharmacological management of anxiety and depression among the PD population are considerable. Thus, adopting a Complementary and Alternative Management (CAM) approach to address this problem is important...
November 2, 2017: Trials
https://www.readbyqxmd.com/read/29095706/trunk-exercises-improve-gait-symmetry-in-parkinson-disease-a-blind-phase-ii-randomised-controlled-trial
#10
Ryan P Hubble, Geraldine Naughton, Peter A Silburn, Michael H Cole
OBJECTIVE: Deficits in step-to-step symmetry and trunk muscle activations have been linked to falls in Parkinson's disease (PD). Given such symptoms are poorly managed with anti-parkinsonian medications, alternate therapies are needed. This blind phase II randomised-controlled trial sought to establish whether exercise can improve step-to-step symmetry in PD. DESIGN: Twenty-four PD patients with a falls history completed baseline assessments of symptom severity, balance confidence, mobility and quality of life...
November 1, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29068596/the-evaluation-of-the-changes-in-enzymatic-antioxidant-reserves-and-lipid-peroxidation-in-chosen-parts-of-the-brain-in-an-animal-model-of-parkinson-disease
#11
Ewa B Romuk, Wioletta Szczurek, Michał Oleś, Artur Gabrysiak, Marta Skowron, Przemysław Nowak, Ewa Birkner
BACKGROUND: Parkinson's disease is a progressive neurodegenerative disorder, characterized by the loss of dopaminergic neurons in the substantia nigra pars compacta. The causes of Parkinson's disease are not fully understood; however, increasing evidence implicates oxidative stress. OBJECTIVES: The study was aimed at assessing the nature of the changes in the oxidation-antioxidant balance in the cerebral cortex, striatum, hippocampus, thalamus, and cerebellum in a rat model of Parkinson's disease (PD)...
September 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29063605/disturbance-of-verticality-perception-and-postural-dysfunction-in-parkinson-s-disease
#12
K A Schindlbeck, W Naumann, A Maier, F Ehlen, F Marzinzik, F Klostermann
OBJECTIVES: Verticality perception is known to be abnormal in Parkinson's disease (PD), but in which stage respective dysfunctions arise and how they relate to postural disorders remains to be settled. These issues were studied with respect to different dimensions of the subjective visual vertical (SVV) in relation to clinical parameters of postural control. MATERIALS & METHODS: All participants had to orientate a luminous line at random planar orientations to a strictly vertical position using an automated operator system...
October 23, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29060615/effects-of-the-temporal-pattern-of-subthalamic-deep-brain-stimulation-on-the-neuronal-complexity-in-the-globus-pallidus
#13
Callie Deng, Tony Sun, Manning Zhang, John T Gale, Erwin B Montgomery, Sabato Santaniello
Deep brain stimulation (DBS) is a surgical treatment for Parkinson's disease (PD) but, despite clinical efficacy, the mechanisms of DBS still require investigation. Recent evidence suggests that the temporal pattern of the electrical pulses may be critical to the therapeutic merit of DBS and carefully-designed, non-regular patterns could ameliorate some of the motor symptoms in PD. It is unclear, though, how different stimulation patterns affect the neural activity in the basal ganglia and whether this is related to the pathophysiology of PD...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060542/posturography-stability-score-generation-for-stroke-patient-using-kinect-fuzzy-based-approach
#14
Oishee Mazumder, Kingshuk Chakravarty, Debatri Chatterjee, Aniruddha Sinha, Abhijit Das
Aim of this paper is to formulate a posturography stability score for stroke patients using fuzzy logic. Postural instability is one of the prominent symptoms of stroke, dementia, parkinsons disease, myopathy, etc. and is the major precursor of fall. Conventional scoring techniques used to assess postural stability require manual intervention and are dependent on live interaction with physiotherapist. We propose a novel scoring technique to calculate static stability of a person using posturography features acquired by Kinect sensor, which do not require any manual intervention or expert guidance, is cost effective and hence are ideal for tele rehabilitation purpose...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060200/truenorth-enabled-real-time-classification-of-eeg-data-for-brain-computer-interfacing
#15
Isabell Kiral-Kornek, Dulini Mendis, Ewan S Nurse, Benjamin S Mashford, Dean R Freestone, David B Grayden, Stefan Harrer
Brain-computer interfaces are commonly proposed to assist individuals with locked-in syndrome to interact with the world around them. In this paper, we present a pipeline to move from recorded brain signals to real-time classification on a low-power platform, such as IBM's TrueNorth Neurosynaptic System. Our results on a EEG-based hand squeeze task show that using a convolutional neural network and a time preserving signal representation strategy provides a good balance between high accuracy and feasibility in a real-time application...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29055387/the-colon-revisited-or-the-key-to-wellness-health-and-disease
#16
C A Gonzalez-Correa, E Mulett-Vásquez, D A Miranda, C H Gonzalez-Correa, P A Gómez-Buitrago
The hypothesis being advanced in this paper is that there is a new medical paradigm emerging from the biomedical research carried out in this century, mainly due to the explosion of the so called "omics" and associated techniques. The main idea is that there is a common pathway from wellbeing and health to chronic disease ("chronopathy") and even to death, which comprises following steps: 1) unhealthy diet, sedentary life style and permanent exposition to xenobiotics and all kinds of noxious stimuli;→2) intestinal dysbiosis;→3) alteration of the intestinal mucus layer (especially that of the colon);→4) disruption of the endothelial tight junctions;→5) metabolic endotoxemia+bacterial translocation;→6) inflammation;→7) exacerbation of the enteric nervous system (ENS) and consequent maladaptation and malfunctioning of the colon;→8) epigenetic manifestations;→9) "chronopathy" and premature death...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29053448/the-effects-of-coding-schemes-on-vibrotactile-biofeedback-for-dynamic-balance-training-in-parkinson-s-disease-and-healthy-elderly-individuals
#17
Beom-Chan Lee, Alberto Fung, Timothy A Thrasher
A coding scheme for earlier versions of vibrotactile biofeedback systems for balance-related applications was primarily binary in nature, either off or on at a given threshold (range of postural tilt), making it unable to convey information about error magnitude. The purpose of this study was to explore the effects of two coding schemes (binary vs. continuous) for vibrotactile biofeedback during dynamic weight-shifting exercises that are common physical therapists' recommended balance exercises used in clinical settings...
October 16, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/29052075/dopamine-d1-receptor-activation-maintains-motor-coordination-and-balance-in-rats
#18
Alberto Avila-Luna, Arturo Gálvez-Rosas, Alfredo Durand-Rivera, Laura-Elisa Ramos-Languren, Camilo Ríos, José-Antonio Arias-Montaño, Antonio Bueno-Nava
Dopamine (DA) modulates motor coordination, and its depletion, as in Parkinson's disease, produces motor impairment. The basal ganglia, cerebellum and cerebral cortex are interconnected, have functional roles in motor coordination, and possess dopamine D1 receptors (D1Rs), which are expressed at a particularly high density in the basal ganglia. In this study, we examined whether the activation of D1Rs modulates motor coordination and balance in the rat using a beam-walking test that has previously been used to detect motor coordination deficits...
October 19, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29039078/the-neuroprotective-effects-of-hydro-alcoholic-extract-of-olive-olea-europaea-l-leaf-on-rotenone-induced-parkinson-s-disease-in-rat
#19
Maryam Sarbishegi, Enam Alhagh Charkhat Gorgich, Ozra Khajavi, Gholamreza Komeili, Saeedeh Salimi
Parkinson's disease (PD) is an age-related disease in which dopaminergic neurons in the nigrostriatal pathway are destroyed, resulting in movement and behavioral problems. Oxidative stress and the generation of reactive oxygen species play key roles in neurodegenerative diseases, such as PD. Rotenone (ROT) is a common pesticide that induces oxidative stress. Olive leaves extract (OLE) has antioxidant and neuroprotective effects. Thus, the aim of this study was to investigate the neuroprotective effects of OLE on ROT-induced oxidative stress in the midbrain of a rat model of PD...
October 16, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29037828/chemogenetic-modulation-of-cholinergic-interneurons-reveals-their-regulating-role-on-the-direct-and-indirect-output-pathways-from-the-striatum
#20
Patrick Aldrin-Kirk, Andreas Heuer, Daniella Rylander Ottosson, Marcus Davidsson, Bengt Mattsson, Tomas Björklund
The intricate balance between dopaminergic and cholinergic neurotransmission in the striatum has been thoroughly difficult to characterize. It was initially described as a seesaw with a competing function of dopamine versus acetylcholine. Recent technical advances however, have brought this view into question suggesting that the two systems work rather in concert with the cholinergic interneurons (ChIs) driving dopamine release. In this study, we have utilized two transgenic Cre-driver rat lines, a choline acetyl transferase ChAT-Cre transgenic rat and a novel double-transgenic tyrosine hydroxylase TH-Cre/ChAT-Cre rat to further elucidate the role of striatal ChIs in normal motor function and in Parkinson's disease...
October 14, 2017: Neurobiology of Disease
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