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https://www.readbyqxmd.com/read/28329332/excessive-daytime-sleepiness-predicts-neurodegeneration-in-idiopathic-rem-sleep-behavior-disorder
#1
Junying Zhou, Jihui Zhang, Siu Ping Lam, Joey Wy Chan, Vincent Mok, Anne Chan, Shirley Xin Li, Yaping Liu, Xiangdong Tang, Wing Ho Yung, Yun Kwok Wing
Study Objectives: To determine the association of excessive daytime sleepiness (EDS) with the conversion of neurodegenerative diseases in patients with idiopathic REM sleep behavior disorder (iRBD). Methods: A total of 179 patients with iRBD (79.1% males, mean age = 66.3 ± 9.8 years) were consecutively recruited. Forty-five patients with Epworth Sleepiness Scale score ≥ 14 were defined as having EDS. Demographic, clinical and polysomnographic data were compared between iRBD patients with and without EDS...
March 16, 2017: Sleep
https://www.readbyqxmd.com/read/28329117/muscle-activity-during-sleep-in-human-subjects-rats-and-mice-towards-translational-models-of-rem-sleep-without-atonia
#2
Alessandro Silvani, Raffaele Ferri, Viviana Lo Martire, Stefano Bastianini, Chiara Berteotti, Agnese Salvadè, Giuseppe Plazzi, Marco Zucconi, Luigi Ferini-Strambi, Claudio L Bassetti, Mauro Manconi, Giovanna Zoccoli
Study Objectives: rapid-eye-movement (REM) sleep without atonia (RSWA) is a marker of REM sleep behavior disorder (RBD) and is common in narcolepsy. Available techniques for electromyogram (EMG) analysis are species-specific, limiting translational research on RSWA. We developed an automated technique based on distributions of normalized EMG values (DNE) to overcome this limitation. With DNE, we tested whether the control of neck and tibialis anterior (TA) muscles during sleep in wild-type rats and mice validly models the control of submentalis (chin) and TA muscles in healthy humans...
February 22, 2017: Sleep
https://www.readbyqxmd.com/read/28327899/thirty-day-readmission-rates-following-deep-brain-stimulation-surgery
#3
Ashwin G Ramayya, Kalil G Abdullah, Arka N Mallela, John T Pierce, Jayesh Thawani, Dmitry Petrov, Gordon H Baltuch
BACKGROUND: Deep brain stimulation (DBS) has emerged as a safe and efficacious surgical intervention for several movement disorders; however, the 30-day all-cause readmission rate associated with this procedure has not previously been documented. OBJECT: To perform a retrospective cohort study to estimate the 30-day all-cause readmission rate associated with DBS. METHODS: We reviewed medical records of patients over the age of 18 who underwent DBS surgery at Pennsylvania Hospital of the University of Pennsylvania between 2009 and 2014...
March 15, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28326165/neurochemical-and-motor-changes-in-mice-with-combined-mutations-linked-to-parkinson-s-disease
#4
Xiang Bai, Margaret Chia-Ying Wey, Paul Anthony Martinez, Chao Shi, Elizabeth Fernandez, Randy Strong
Considerable evidence suggests that oxidative stress plays a role in the pathogenesis of Parkinson's disease (PD), the most prevalent neurodegenerative movement disorder. Reduced expression of aldehyde dehydrogenase-1 (ALDH1) and glutathione peroxidase-1 (GPX1), enzymes that function to detoxify aldehydes and hydroxyl radicals, respectively, has been reported in the substantia nigra of patients who died with PD. To determine whether deficiency in these two genes contributes to the pathogenesis of PD, mice were generated with homozygous null mutations of both Aldh1a1 (the murine homolog of ALDH1) and Gpx1 genes [knockout (KO) mice]...
2017: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/28325617/human-genetics-and-sleep-behavior
#5
REVIEW
Guangsen Shi, David Wu, Louis J Ptáček, Ying-Hui Fu
Why we sleep remains one of the greatest mysteries in science. In the past few years, great advances have been made to better understand this phenomenon. Human genetics has contributed significantly to this movement, as many features of sleep have been found to be heritable. Discoveries about these genetic variations that affect human sleep will aid us in understanding the underlying mechanism of sleep. Here we summarize recent discoveries about the genetic variations affecting the timing of sleep, duration of sleep and EEG patterns...
March 15, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28325582/a-novel-framework-for-understanding-reduced-awareness-of-dyskinesias-in-parkinson-s-disease
#6
Sara Palermo, Leonardo Lopiano, Maurizio Zibetti, Rosalba Rosato, Daniela Leotta, Martina Amanzio
BACKGROUND: Although dyskinesias-reduced-self-awareness (DRSA) in Parkinson's disease (PD) is related to deficit in metacognition, other factors, such as "Theory of Mind" (ToM), could operate. METHODS: Forty-one PD patients were assessed using the Global Awareness of Movement Disorders (GAM) and the Dyskinesias Subtracted-Index (DS-I). To study whether GAM and DS-I scores could be influenced by second-type ToM or Reading the Mind in the Eyes (RME) tasks, we conducted two multiple logistic regression analyses...
March 16, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28325153/ultra-micronized-palmitoylethanolamide-an-efficacious-adjuvant-therapy-for-parkinson-s-disease
#7
Stefania Brotini, Carlo Schievano, Leonello Guidi
BACKGROUND: Parkinson's disease (PD) is the subject of intense efforts to develop strategies that slow down or stop disease progression and disability. Substantial evidence points to a prominent role for neuroinflammation in the underlying dopaminergic cell death. Ultramicronized palmitoylethanolamide (um-PEA) is well-known for its ability to promote the resolution of neuroinflammation and exert neuroprotection. This study was designed to assess the efficacy of um-PEA as adjuvant therapy in patients with advanced PD...
March 21, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28324987/sleep-architecture-measurement-based-on-cardiorespiratory-parameters
#8
Alexander Tataraidze, Lyudmila Korostovtseva, Lesya Anishchenko, Mikhail Bochkarev, Yurii Sviryaev
This paper presents a method for the detection of wakeful state, rapid eye movement sleep (REM), light sleep (N1&N2) and deep sleep (N3&N4) based on cardiorespiratory parameters. Experiments were conducted with data of 625 subjects without sleep-disordered breathing selected from the SHHS dataset. Compared to previous studies, our method considers results of neighboring epochs classification and epoch position over record time. The method demonstrates Cohen's kappa of 0.57 ± 0.13 and the accuracy of 71.4 ± 8...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324963/quantitative-assessment-of-arm-tremor-in-people-with-neurological-disorders
#9
Jeonghee Kim, Claire Parnell, Thomas Wichmann, Stephen P DeWeerth
Abnormal oscillatory movement (i.e. tremor) is usually evaluated with qualitative assessment by clinicians, and quantified with subjective scoring methods. These methods are often inaccurate. We utilized a quantitative and standardized task based on the Fitts' law to assess the performance of arm movement with tremor by controlling a gyration mouse on a computer. The experiment included the center-out tapping (COT) and rectangular track navigation (RTN) tasks. We report the results of a pilot study in which we collected the performance for healthy participants in whom tremor was simulated by imposing oscillatory movements to the arm with a vibration motor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28321196/connected-speech-in-neurodegenerative-language-disorders-a-review
#10
REVIEW
Veronica Boschi, Eleonora Catricalà, Monica Consonni, Cristiano Chesi, Andrea Moro, Stefano F Cappa
Language assessment has a crucial role in the clinical diagnosis of several neurodegenerative diseases. The analysis of extended speech production is a precious source of information encompassing the phonetic, phonological, lexico-semantic, morpho-syntactic, and pragmatic levels of language organization. The knowledge about the distinctive linguistic variables identifying language deficits associated to different neurodegenerative diseases has progressively improved in the last years. However, the heterogeneity of such variables and of the way they are measured and classified limits any generalization and makes the comparison among studies difficult...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28321193/early-psychosis-and-trauma-related-disorders-clinical-practice-guidelines-and-future-directions
#11
Casey A Cragin, Martha B Straus, Dawn Blacker, Laura M Tully, Tara A Niendam
Despite high rates of trauma-related disorders among individuals with early psychosis, no clinical practice guidelines for the treatment of comorbid early psychosis and trauma-related disorders exist to date. Indeed, the routine exclusion of individuals with past and current psychosis from participation in trauma research and practice has limited the accumulation of research that could support such clinical practice guidelines. While preliminary research evidence suggests that traditional, evidence-based treatments for trauma-related disorders can be safely and effectively employed to reduce symptoms of posttraumatic stress and chronic psychosis, it remains unclear whether such treatments are appropriate for individuals in the early stages of psychotic illness...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28320223/kinect-3-a-phase-3-randomized-double-blind-placebo-controlled-trial-of-valbenazine-for-tardive-dyskinesia
#12
Robert A Hauser, Stewart A Factor, Stephen R Marder, Mary Ann Knesevich, Paul M Ramirez, Roland Jimenez, Joshua Burke, Grace S Liang, Christopher F O'Brien
OBJECTIVE: Tardive dyskinesia is a persistent movement disorder induced by dopamine receptor blockers, including antipsychotics. Valbenazine (NBI-98854) is a novel, highly selective vesicular monoamine transporter 2 inhibitor that demonstrated favorable efficacy and tolerability in the treatment of tardive dyskinesia in phase 2 studies. This phase 3 study further evaluated the efficacy, safety, and tolerability of valbenazine as a treatment for tardive dyskinesia. METHOD: This 6-week, randomized, double-blind, placebo-controlled trial included patients with schizophrenia, schizoaffective disorder, or a mood disorder who had moderate or severe tardive dyskinesia...
March 21, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28320196/extended-timed-up-and-go-assessment-as-a-clinical-indicator-of-cognitive-state-in-parkinson-s-disease
#13
Tess Evans, Alexa Jefferson, Michelle Byrnes, Sue Walters, Soumya Ghosh, Frank L Mastaglia, Brian Power, Ryan S Anderton
OBJECTIVE: To evaluate a modified extended Timed Up and Go (extended-TUG) assessment against a panel of validated clinical assessments, as an indicator of Parkinson's disease (PD) severity and cognitive impairment. METHODS: Eighty-seven participants with idiopathic PD were sequentially recruited from a Movement Disorders Clinic. An extended-TUG assessment was employed which required participants to stand from a seated position, walk in a straight line for 7m, turn 180° and then return to the start, in a seated position...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320181/ataxic-form-of-autosomal-recessive-pex10-related-peroxisome-biogenesis-disorders-with-a-novel-compound-heterozygous-gene-mutation-and-characteristic-clinical-phenotype
#14
Toru Yamashita, Jun Mitsui, Nobuyuki Shimozawa, Shigeo Takashima, Hiroshi Umemura, Kota Sato, Mami Takemoto, Nozomi Hishikawa, Yasuyuki Ohta, Takashi Matsukawa, Hiroyuki Ishiura, Jun Yoshimura, Koichiro Doi, Shinichi Morishita, Shoji Tsuji, Koji Abe
Peroxisome biogenesis factor 10 (PEX10) is involved in the import of peroxisomal matrix proteins, and the mutation of this gene causes 3 subtypes of peroxisome biogenesis disorders, namely Zellweger syndrome (severe), neonatal adrenoleukodystrophy (moderate) and an ataxic form (mild). Here, we report 3 siblings of the ataxic form with cerebellar ataxia, mild mental retardation, and 3 additional characteristic features: mydriasis, hyperreflexia and involuntary head movement. All 3 siblings are compound heterozygous for a previously reported mutation, c...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320164/impact-of-stn-dbs-on-mood-drive-anhedonia-and-risk-of-psychiatric-side-effects-in-the-population-of-pd-patients
#15
Anna Antosik-Wójcińska, Łukasz Święcicki, Monika Dominiak, Emilia Sołtan, Przemyslaw Bieńkowski, Tomasz Mandat
BACKGROUND: DBS is a surgical method of choice for various movement disorders, especially for Parkinson's disease (PD). Many publications showing improvement in motor symptoms and quality of life have been presented while there is little comprehensive research evaluation of the impact of DBS on mental state and psychiatric side-effects. OBJECT: The purpose of this study was to assess the impact of DBS on mood, drive, anhedonia and psychotic symptoms in the group of PD patients...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319282/stereotactic-radiosurgery-for-essential-tremor-retrospective-analysis-of-a-19-year-experience
#16
Ajay Niranjan, Sudesh S Raju, Ali Kooshkabadi, Edward Monaco, John C Flickinger, L Dade Lunsford
BACKGROUND: Essential Tremor (ET) is a common movement disorder that can be disabling. Initial treatment is in the form of medical therapies. Patients with medically refractory ET seek surgical intervention which include radiofrequency thalamotomy, deep brain stimulation, and radiosurgical thalamotomy. Radiosurgical thalamotomy is a minimally invasive surgical option which is especially valuable for elderly and high surgical risk patients. OBJECTIVE: The purpose of this study was to retrospectively analyze the outcomes of stereotactic radiosurgery for patients suffering from medically refractory essential tremor...
March 20, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28317439/patterns-of-cervical-and-masticatory-impairment-in-subgroups-of-people-with-temporomandibular-disorders-an-explorative-approach-based-on-factor-analysis
#17
Nikolaus Ballenberger, Harry von Piekartz, Mira Danzeisen, Toby Hall
OBJECTIVES: To identify clinical patterns of impairment affecting the cervical spine and masticatory systems in different subcategories of temporomandibular disorder (TMD) by an explorative data-driven approach. METHODS: For this observational study, 144 subjects were subdivided according to Research Diagnostic Criteria for TMDs into: Healthy controls, temporomandibular joint (TMJ) signs without symptoms, TMJ affected, temporomandibular muscles affected, or TMJ and muscles affected...
March 20, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28316589/a-postural-tremor-highly-responsive-to-transcranial-cerebello-cerebral-dcs-in-arca3
#18
Florian Bodranghien, Nordeyn Oulad Ben Taib, Lionel Van Maldergem, Mario Manto
BACKGROUND AND OBJECTIVES: Cerebellar ataxias are disabling disorders that impact the quality of life of patients. In many cases, an effective treatment is missing. Despite the increasing knowledge on the pathogenesis of cerebellar disorders including genetic aspects, there is currently a gap in the therapeutical management of cerebellar deficits. Cerebellar ataxia associated with ANO10 mutation (ARCA3) presents a disabling cerebellar syndrome. The aim of this study is to report a patient with a marked postural tremor responding to transcranial cerebello-cerebral direct current stimulation (tCCDCS)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28315757/chronic-social-stress-leads-to-altered-sleep-homeostasis-in-mice
#19
Nadja Olini, Iru Rothfuchs, Damiano Azzinnari, Christopher R Pryce, Salome Kurth, Reto Huber
Disturbed sleep and altered sleep homeostasis are core features of many psychiatric disorders such as depression. Chronic uncontrollable stress is considered an important factor in the development of depression, but little is known on how chronic stress affects sleep regulation and sleep homeostasis. We therefore examined the effects of chronic social stress (CSS) on sleep regulation in mice. Adult male C57BL/6 mice were implanted for electrocortical recordings (ECoG) and underwent either a 10-day CSS protocol or control handling (CON)...
March 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28315585/eye-movement-during-recall-reduces-objective-memory-performance-an-extended-replication
#20
Arne Leer, Iris M Engelhard, Bert Lenaert, Dieter Struyf, Bram Vervliet, Dirk Hermans
Eye Movement Desensitization and Reprocessing (EMDR) therapy for posttraumatic stress disorder involves making eye movements (EMs) during recall of a traumatic image. Experimental studies have shown that the dual task decreases self-reported memory vividness and emotionality. However valuable, these data are prone to demand effects and little can be inferred about the mechanism(s) underlying the observed effects. The current research aimed to fill this lacuna by providing two objective tests of memory performance...
March 9, 2017: Behaviour Research and Therapy
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