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https://www.readbyqxmd.com/read/29753556/pharmacotherapy-for-postural-tachycardia-syndrome
#1
REVIEW
Amanda J Miller, Satish R Raj
Postural tachycardia syndrome (POTS) is a disorder characterized by the presence of orthostatic symptoms (including lightheadedness, palpitations, nausea, dyspnea, and tremulousness) as well as excessive upright tachycardia. POTS predominantly affects women of childbearing age. Treating POTS involves a multi-faceted approach using non-pharmacological and pharmacological interventions. There are no pharmacological treatments that are currently United States Food and Drug Administration (FDA) approved for POTS due to lack of randomized controlled trials...
May 4, 2018: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/29738079/patients-with-chronic-fatigue-syndrome-do-not-score-higher-on-the-autism-spectrum-quotient-than-healthy-controls-comparison-with-autism-spectrum-disorder
#2
Indre Bileviciute-Ljungar, Daniel Maroti, Susanne Bejerot
Clinically, there is an overlap of several symptoms of chronic fatigue syndrome (CFS) and autism spectrum disorder (ASD), including fatigue; brain "fog"; cognitive impairments; increased sensitivity to sound, light, and odour; increased pain and tenderness; and impaired emotional contact. Adults with CFS (n = 59) or ASD (n = 50) and healthy controls (HC; n = 53) were assessed with the Autism-Spectrum Quotient (AQ) in a cross-sectional study. Non-parametric analysis was used to compare AQ scores among the groups...
May 8, 2018: Scandinavian Journal of Psychology
https://www.readbyqxmd.com/read/29644006/the-long-non-coding-rna-hotair-is-transcriptionally-activated-by-hoxa9-and-is-an-independent-prognostic-marker-in-patients-with-malignant-glioma
#3
Ana Xavier-Magalhães, Céline S Gonçalves, Anne Fogli, Tatiana Lourenço, Marta Pojo, Bruno Pereira, Miguel Rocha, Maria Celeste Lopes, Inês Crespo, Olinda Rebelo, Herminio Tão, João Lima, Ricardo Moreira, Afonso A Pinto, Chris Jones, Rui M Reis, Joseph F Costello, Philippe Arnaud, Nuno Sousa, Bruno M Costa
The lncRNA HOTAIR has been implicated in several human cancers. Here, we evaluated the molecular alterations and upstream regulatory mechanisms of HOTAIR in glioma, the most common primary brain tumors, and its clinical relevance. HOTAIR gene expression, methylation, copy-number and prognostic value were investigated in human gliomas integrating data from online datasets and our cohorts. High levels of HOTAIR were associated with higher grades of glioma, particularly IDH wild-type cases. Mechanistically, HOTAIR was overexpressed in a gene dosage-independent manner, while DNA methylation levels of particular CpGs in HOTAIR locus were associated with HOTAIR expression levels in GBM clinical specimens and cell lines...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29642483/drawing-inspiration-from-human-brain-networks-construction-of-interconnected-virtual-networks
#4
Masaya Murakami, Daichi Kominami, Kenji Leibnitz, Masayuki Murata
Virtualization of wireless sensor networks (WSN) is widely considered as a foundational block of edge/fog computing, which is a key technology that can help realize next-generation Internet of things (IoT) networks. In such scenarios, multiple IoT devices and service modules will be virtually deployed and interconnected over the Internet. Moreover, application services are expected to be more sophisticated and complex, thereby increasing the number of modifications required for the construction of network topologies...
April 8, 2018: Sensors
https://www.readbyqxmd.com/read/29628432/cognitive-and-psychological-issues-in-postural-tachycardia-syndrome
#5
REVIEW
Vidya Raj, Morwenna Opie, Amy C Arnold
Postural tachycardia syndrome (POTS) is one of the most common forms of chronic orthostatic intolerance. In addition to orthostatic symptoms, many POTS patients report incapacitating cognitive dysfunction or "brain fog" even while lying down or seated. Consistent with these subjective reports, there is accruing objective evidence of specific cognitive difficulties in POTS, with studies showing mild to moderate cognitive impairment using standardized neuropsychological assessment batteries. The precise profile of cognitive dysfunction in POTS patients has been shown to vary among these studies potentially due to the neuropsychological tests used, postural position, comorbidities and length of illness, inclusion of adolescent versus adult patients, and sites of recruitment...
March 27, 2018: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/29616302/alterations-in-white-matter-network-topology-contribute-to-freezing-of-gait-in-parkinson-s-disease
#6
Julie M Hall, James M Shine, Kaylena A Ehgoetz Martens, Moran Gilat, Kathryn M Broadhouse, Jennifer Y Y Szeto, Courtney C Walton, Ahmed A Moustafa, Simon J G Lewis
Freezing of gait (FOG) is a common symptom in advanced Parkinson's disease (PD). Despite current advances, the neural mechanisms underpinning this disturbance remain poorly understood. To this end, we investigated the structural organisation of the white matter connectome in PD freezers and PD non-freezers. We hypothesized that freezers would show an altered network architecture, which could hinder the effective information processing that characterizes the disorder. Twenty-six freezers and twenty-four well-matched non-freezers were included in this study...
April 3, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29602542/decreased-interhemispheric-homotopic-connectivity-in-parkinson-s-disease-patients-with-freezing-of-gait-a-resting-state-fmri-study
#7
Junyi Li, Yongsheng Yuan, Min Wang, Jiejin Zhang, Li Zhang, Siming Jiang, Xixi Wang, Jian Ding, Kezhong Zhang
INTRODUCTION: Freezing of gait is a common complaint in patients with Parkinson's disease (PD). However, the neural bases of freezing of gait in PD remain uncertain. Existing studies on PD patients with freezing of gait (PD-FOG+) have reported damage of the corpus callosum, the largest commissural bundle of the brain. Thus, in this study we explored homotopic connectivity to investigate FOG-related interehemispheric alterations METHODS: A total of 21 PD-FOG + patients, 33 PD patients without freezing of gait (PD-FOG-), and 24 matched healthy controls were recruited...
March 26, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29572571/exploring-the-relationship-between-motor-impairment-vascular-burden-and-cognition-in-parkinson-s-disease
#8
Tanja Stojkovic, Elka Stefanova, Ivan Soldatovic, Vladana Markovic, Iva Stankovic, Igor Petrovic, Federica Agosta, Sebastiano Galantucci, Massimo Filippi, Vladimir Kostic
OBJECTIVE: To determine frequency and type of cognitive disorders in cross-sectional analysis of a Parkinson's disease (PD) cohort, and explore its relations to motor symptoms, modifiable vascular risk factors and white matter lesions (WML) volume. METHODS: In a group of 133 PD patients, mild cognitive impairment (PD-MCI) and dementia (PDD) were diagnosed according to Movement Disorders Society Task Force criteria (level 2 for PD-MCI). Detailed motor measurements were applied, including rigidity, axial, bradykinesia, tremor and postural instability gait disorders (PIGD) scores...
March 23, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29571872/alterations-of-regional-homogeneity-in-freezing-of-gait-in-parkinson-s-disease
#9
Caihong Zhou, Xiaoling Zhong, Yongzhe Yang, Wanqun Yang, Lijuan Wang, Yuhu Zhang, Kun Nie, Jianmin Xu, Biao Huang
INTRODUCTION: Freezing of gait (FOG) is a serious complication in patients with Parkinson's disease (PD), and is more common in the late state of the disease. The high risk of falling in patients with FOG impacts their quality of life. OBJECTIVE: To explore altered neuroactivity related to cognitive and executive function of PD patients with FOG. METHODS: Fourteen PD patients with FOG (FOG+), 20 PD patients without FOG (FOG-), and 18 normal controls (NC) were enrolled...
April 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29503606/deep-brain-stimulation-to-alleviate-freezing-of-gait-and-cognitive-dysfunction-in-parkinson-s-disease-update-on-current-research-and-future-perspectives
#10
REVIEW
Chuyi Huang, Heling Chu, Yan Zhang, Xiaoping Wang
Freezing of gait (FOG) is a gait disorder featured by recurrent episodes of temporary gait halting and mainly found in advanced Parkinson's disease (PD). FOG has a severe impact on the quality of life of patients with PD. The pathogenesis of FOG is unclear and considered to be related to several brain areas and neural circuits. Its close connection with cognitive disorder has been proposed and some researchers explain the pathogenesis using the cognitive model theory. FOG occurs concurrently with cognitive disorder in some PD patients, who are poorly responsive to medication therapy...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29501855/inflammation-kinase-pkr-phosphorylates-%C3%AE-synuclein-and-causes-%C3%AE-synuclein-dependent-cell-death
#11
Lasse Reimer, Louise Buur Vesterager, Cristine Betzer, Jin Zheng, Lærke Dalsgaard Nielsen, Rikke Hahn Kofoed, Louise Berkhoudt Lassen, Ulrik Bølcho, Søren Riis Paludan, Karina Fog, Poul Henning Jensen
Parkinson's disease, dementia with Lewy bodies, and multiple system atrophy comprise a group of neurodegenerative diseases termed synucleinopathies. Synucleinopathie are, characterized by presence of inclusion bodies in degenerating brain cells which contain aggregated α-synuclein phosphorylated on Ser129. Although the inflammation-associated serine-threonine kinase, PKR (EIF2AK2), promotes cellular protection against infection, we demonstrate a pro-degenerative role of activated PKR in an α-synuclein-dependent cell model of multiple system atrophy, where inhibition and silencing of PKR decrease cellular degeneration...
July 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29442369/spinal-cord-stimulation-therapy-for-gait-dysfunction-in-advanced-parkinson-s-disease-patients
#12
Olivia Samotus, Andrew Parrent, Mandar Jog
BACKGROUND: Benefits of dopaminergic therapy and deep brain stimulation are limited and unpredictable for axial symptoms in Parkinson's disease. Dorsal spinal cord stimulation may be a new therapeutic approach. The objective of this study was to investigate the therapeutic effect of spinal cord stimulation on gait including freezing of gait in advanced PD patients. METHODS: Five male PD participants with significant gait disturbances and freezing of gait underwent midthoracic spinal cord stimulation...
February 14, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29419708/intravenous-calcium-zinc-diethylene-triamine-penta-acetic-acid-in-patients-with-presumed-gadolinium-deposition-disease-a-preliminary-report-on-25-patients
#13
Richard C Semelka, Miguel Ramalho, Michael Jay, Lisa Hickey, Joseph Hickey
OBJECTIVES: The aim of this study was to report the use of intravenous calcium (Ca)-/zinc (Zn)-diethylene triamine penta-acetic acid (DTPA) for the treatment of 25 symptomatic patients diagnosed with gadolinium deposition disease (GDD). MATERIALS AND METHODS: Written informed consent was obtained. Twenty-five patients (18 women; mean age, 46.8 ± 15.3 years) with a diagnosis of GDD were included. All patients had received at least 1 administration of a gadolinium (Gd)-based contrast agent...
June 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29343965/postural-tachycardia-syndrome-current-perspectives
#14
REVIEW
Rachel Wells, Andrew J Spurrier, Dominik Linz, Celine Gallagher, Rajiv Mahajan, Prashanthan Sanders, Amanda Page, Dennis H Lau
Postural tachycardia syndrome (POTS) is the combination of an exaggerated heart rate response to standing, in association with symptoms of lightheadedness or pre-syncope that improve when recumbent. The condition is often associated with fatigue and brain fog, resulting in significant disruptions at a critical time of diagnosis in adolescence and young adulthood. The heterogeneity of the underlying pathophysiology and the variable response to therapeutic interventions make management of this condition challenging for both patients and physicians alike...
2018: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/29196699/altered-resting-state-brain-activity-in-parkinson-s-disease-patients-with-freezing-of-gait
#15
Tao-Mian Mi, Shan-Shan Mei, Pei-Peng Liang, Lin-Lin Gao, Kun-Cheng Li, Tao Wu, Piu Chan
Freezing of gait (FOG) is a common and debilitating symptom in Parkinson's disease (PD). The current study investigated alterations of resting-state spontaneous brain activity in PD patients with FOG. A total of 29 patients with FOG, 28 patients without FOG and 31 controls were included. All subjects underwent resting-state functional MRI, and the amplitude of low-frequency fluctuation (ALFF) was calculated to measure the spontaneous brain activity. Between-group differences and correlations with FOG severity (both subjective and objective measures) were analyzed...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137009/brain-metabolism-in-patients-with-freezing-of-gait-after-hypoxic-ischemic-brain-injury-a-pilot-study
#16
Seo Yeon Yoon, Sang Chul Lee, Na Young Kim, Young-Sil An, Yong Wook Kim
Movement disorders are 1 of the long-term neurological complications that can occur after hypoxic-ischemic brain injury (HIBI). However, freezing of gait (FOG) after HIBI is rare. The aim of this study was to examine the brain metabolism of patients with FOG after HIBI using F-18 fluoro-2-deoxy-D-glucose positron emission tomography (F-18 FDG PET).We consecutively enrolled 11 patients with FOG after HIBI. The patients' overall brain metabolism was measured by F-18 FDG PET, and we compared their regional brain metabolic activity with that from 15 healthy controls using a voxel-by-voxel-based statistical mapping analysis...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29089922/effects-of-subthalamic-and-nigral-stimulation-on-gait-kinematics-in-parkinson-s-disease
#17
Marlieke Scholten, Johannes Klemt, Melanie Heilbronn, Christian Plewnia, Bastiaan R Bloem, Friedemann Bunjes, Rejko Krüger, Alireza Gharabaghi, Daniel Weiss
Conventional subthalamic deep brain stimulation for Parkinson's disease (PD) presumably modulates the spatial component of gait. However, temporal dysregulation of gait is one of the factors that is tightly associated with freezing of gait (FOG). Temporal locomotor integration may be modulated differentially at distinct levels of the basal ganglia. Owing to its specific descending brainstem projections, stimulation of the substantia nigra pars reticulata (SNr) area might modulate spatial and temporal parameters of gait differentially compared to standard subthalamic nucleus (STN) stimulation...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29060541/detection-of-gait-initiation-failure-in-parkinson-s-disease-based-on-wavelet-transform-and-support-vector-machine
#18
Quynh Tran Ly, A M Ardi Handojoseno, Moran Gilat, Rifai Chai, Kaylena A Ehgoetz Martens, Matthew Georgiades, Ganesh R Naik, Yvonne Tran, Simon J G Lewis, Hung T Nguyen
Gait initiation Failure (GIF) is the situation in which patients with Parkinson's disease (PD) feel as if their feet get "stuck" to the floor when initiating their first steps. GIF is a subtype of Freezing of Gait (FOG) and often leads to falls and related injuries. Understanding of neurobiological mechanisms underlying GIF has been limited by difficulties in eliciting and objectively characterizing such gait phenomena in the clinical setting. Studies investigating the effects of GIF on brain activity using EEG offer the potential to study such behavior...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060496/freezing-of-gait-detection-using-temporal-spatial-and-physiological-features-with-a-support-vector-machine-classifier
#19
Parisa Tahafchi, Rene Molina, Jaimie A Roper, Kristen Sowalsky, Chris J Hass, Aysegul Gunduz, Michael S Okun, Jack W Judy
Freezing-of-Gait (FoG) is a syndrome of Parkinson's disease defined by episodes when patients show a complete inability to take a step or continue with their locomotion. In order to develop closed-loop therapeutic strategies, including deep brain stimulation, a reliable means of detecting freezing episodes is required. By using wearable accelerometers, freezing episodes can be detected with energy-based algorithms when the ratio of the energy in the freeze band (3 to 8 Hz) to that of the locomotion band (0...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29055439/patient-perspectives-on-neuromyelitis-optica-spectrum-disorders-data-from-the-patientslikeme-online-community
#20
Stephanie Eaneff, Victor Wang, Morgan Hanger, Michael Levy, Maureen A Mealy, Alexander U Brandt, Daniel Eek, John N Ratchford, Fredrik Nyberg, Jonathan Goodall, Paul Wicks
BACKGROUND: Few studies have evaluated patient perspectives on neuromyelitis optica (NMO) and NMO spectrum disorder (NMOSD). OBJECTIVE: Describe patient-reported clinical and treatment experience in NMOSD and compare disease characteristics of NMOSD with those of multiple sclerosis (MS). METHODS: This retrospective, observational study included 522 members with NMO or NMOSD (hereafter collectively referred to as NMOSD) from PatientsLikeMe (PLM), an online patient community...
October 2017: Multiple Sclerosis and related Disorders
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