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https://www.readbyqxmd.com/read/29686643/inhibition-of-mtorc1-signaling-reverts-cognitive-and-affective-deficits-in-a-mouse-model-of-parkinson-s-disease
#1
Débora Masini, Alessandra Bonito-Oliva, Maëlle Bertho, Gilberto Fisone
Non-motor symptoms, including cognitive deficits and affective disorders, are frequently diagnosed in Parkinson's disease (PD) patients and are only partially alleviated by dopamine replacement therapy. Here, we used a 6-hydroxydopamine (6-OHDA) mouse model of PD to examine the effects exerted on non-motor symptoms by inhibition of the mammalian target of rapamycin complex 1 (mTORC1), which is involved in the control of protein synthesis, cell growth, and metabolism. We show that rapamycin, which acts as an allosteric inhibitor of mTORC1, counteracts the impairment of novel object recognition...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29684508/methylene-blue-ameliorates-olfactory-dysfunction-and-motor-deficits-in-a-chronic-mptp-probenecid-mouse-model-of-parkinson-s-disease
#2
K C Biju, Robert C Evans, Kripa Shrestha, Daniel C B Carlisle, Jonathan Gelfond, Robert A Clark
Mitochondrial dysfunction and oxidative stress are very prominent and early features in Parkinson's disease (PD) and in animal models of PD. Thus, antioxidant therapy for PD has been proposed, but in clinical trials such strategies have met with very limited success. Methylene blue (MB), a small-molecule synthetic heterocyclic organic compound that acts as a renewable electron cycler in the mitochondrial electron transport chain, manifesting robust antioxidant and cell energetics-enhancing properties, has recently been shown to have significant beneficial effects in reducing nigrostriatal dopaminergic loss and motor impairment in acute toxin models of PD...
April 20, 2018: Neuroscience
https://www.readbyqxmd.com/read/29673238/association-of-exercise-induced-autophagy-upregulation-and-apoptosis-suppression-with-neuroprotection-against-pharmacologically-induced-parkinson-s-disease
#3
Yong Chul Jang, Dong Joo Hwang, Jung Hoon Koo, Hyun Seob Um, Nam Hee Lee, Dong Cheol Yeom, Youngil Lee, Joon Yong Cho
PURPOSE: We investigated whether treadmill exercise (TE)-induced neuroprotection was associated with enhanced autophagy and reduced apoptosis in a mouse model of pharmacologically induced Parkinson's disease (PD). METHODS: PD was induced via the administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). C57BL/6 male mice were randomly assigned to the following three groups: control (C57BL, n=10), MPTP with probenecid (MPTP/C, n=10), and MPTP/ C plus exercise (MPTP-TE, n=10)...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29663553/rapid-evidence-assessment-of-approaches-to-community-neurological-nursing-care-for-people-with-neurological-conditions-post-discharge-from-acute-care-hospital
#4
REVIEW
Judith Dianne Pugh, Kathleen McCoy, Anne M Williams, Brenda Bentley, Leanne Monterosso
Neurological conditions represent leading causes of non-fatal burden of disease that will consume a large proportion of projected healthcare expenditure. Inconsistent access to integrated healthcare and other services for people with long-term neurological conditions stresses acute care services. The purpose of this rapid evidence assessment, conducted February-June 2016, was to review the evidence supporting community neurological nursing approaches for patients with neurological conditions post-discharge from acute care hospitals...
April 16, 2018: Health & Social Care in the Community
https://www.readbyqxmd.com/read/29622555/mri-planimetry-and-magnetic-resonance-parkinsonism-index-in-the-differential-diagnosis-of-patients-with-parkinsonism
#5
V C Constantinides, G P Paraskevas, G Velonakis, P Toulas, E Stamboulis, E Kapaki
BACKGROUND AND PURPOSE: Differential diagnosis of multiple system atrophy, progressive supranuclear palsy, and corticobasal degeneration from Parkinson disease on clinical grounds is often difficult. MR imaging biomarkers could assist in a more accurate diagnosis. We examined the utility of MR imaging surface measurements (MR imaging planimetry) in the differential diagnosis of patients with parkinsonism. MATERIALS AND METHODS: Fifty-two patients with Parkinson-plus (progressive supranuclear palsy, n = 24; corticobasal degeneration, n = 9; multiple system atrophy, n = 19), 18 patients with Parkinson disease, and 15 healthy controls were included...
April 5, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29571875/familial-and-sporadic-chronic-progressive-degenerative-parietal-ataxia
#6
Ryuta Morihara, Toru Yamashita, Kentaro Deguchi, Tomoko Kurata, Emi Nomura, Kota Sato, Yumiko Nakano, Yasuyuki Ohta, Nozomi Hishikawa, Takeshi Ikeuchi, Masataka Kitaguchi, Koji Abe
BACKGROUND & OBJECTIVE: Parietal ataxia has been mainly reported as a consequence of acute ischemic stroke, while degenerative parietal ataxia has not been reported. METHODS: We investigated clinical characteristics, neuroimaging data, and genetic analysis of patients with cerebellar ataxia plus parietal atrophy. RESULTS: We identified seven patients, including five patients from two families, with chronic progressive cerebellar ataxia due to degenerative parietal atrophy but not stroke...
April 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29571236/hyperbaric-oxygen-for-late-sequelae-of-carbon-monoxide-poisoning-enhances-neurological-recovery-case-report
#7
Lon Keim, Sreekanth Koneru, Vesper Fe Marie Ramos, Najib Murr, Deborah S Hoffnung, Daniel L Murman, Jeffrey S Cooper, Diego Torres-Russotto
Neuropsychiatric sequelae have been reported in 15%-45% of survivors of carbon monoxide (CO) poisoning. Hyperbaric oxygen (HBO₂) therapy reduces the incidence of cognitive and neurological a dysfunction. The efficacy of providing HBO₂ beyond the first one to two days after initial insult is unknown. However, some evidence exists for the benefit of this treatment. We report on treating a patient 14 months after CO injury, who responded with markedly improved neurologic status. A 27-year-old scholar was found comatose due to CO poisoning (carboxyhemoglobin = 31...
January 2018: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/29510692/are-dementia-with-lewy-bodies-and-parkinson-s-disease-dementia-the-same-disease
#8
Kurt A Jellinger, Amos D Korczyn
BACKGROUND: Dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD), which share many clinical, neurochemical, and morphological features, have been incorporated into DSM-5 as two separate entities of major neurocognitive disorders with Lewy bodies. Despite clinical overlap, their diagnosis is based on an arbitrary distinction concerning the time of onset of motor and cognitive symptoms, namely as early cognitive impairment in DLB and later onset following that of motor symptoms in PDD...
March 6, 2018: BMC Medicine
https://www.readbyqxmd.com/read/29468183/charcot-marie-tooth-disease-type-4j-with-complex-central-nervous-system-features
#9
James P Orengo, Pravin Khemani, John W Day, Jun Li, Carly E Siskind
We describe a family with Charcot Marie Tooth disease type 4J presenting with features of Charcot Marie Tooth disease plus parkinsonism and aphemia. Genetic testing found two variants in the FIG4 gene: c.122T>C (p.I41T) - the most common Charcot Marie Tooth disease type 4J variant - and c.1949-10T>G (intronic). Proband fibroblasts showed absent FIG4 protein on western blot, and skipping of exon 18 by RT-PCR. As most patients with Charcot Marie Tooth disease type 4J do not have central nervous system deficits, we postulate the intronic variant and I41T mutation together are causing loss of FIG4 protein and subsequently the central nervous system findings in our family...
February 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29458746/stridor-combined-with-other-sleep-breathing-disorders-in-multiple-system-atrophy-a-tailored-treatment
#10
Saleheddine Rekik, Francis Martin, Pauline Dodet, Stefania Redolfi, Smaranda Leu-Semenescu, Jean-Christophe Corvol, David Grabli, Isabelle Arnulf
OBJECTIVES: To determine the frequency of sleep breathing disorders in multiple systemic atrophy (MSA, combining Parkinsonism, cerebellar syndrome, and dysautonomia) and evaluate the benefit/tolerance of various modes of ventilation. METHODS: We retrospectively analyzed 45 patients with MSA having undergone a videopolysomnography. Their sleep characteristics were compared to those of 45 patients with Parkinson's disease and 45 healthy controls, matched for age and sex...
February 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29452685/behavioural-outcomes-of-subthalamic-stimulation-and-medical-therapy-versus-medical-therapy-alone-for-parkinson-s-disease-with-early-motor-complications-earlystim-trial-secondary-analysis-of-an-open-label-randomised-trial
#11
Eugénie Lhommée, Lars Wojtecki, Virginie Czernecki, Karsten Witt, Franziska Maier, Lisa Tonder, Lars Timmermann, Thomas D Hälbig, Fanny Pineau, Franck Durif, Tatiana Witjas, Marcus Pinsker, Maximilian Mehdorn, Friederike Sixel-Döring, Andreas Kupsch, Rejko Krüger, Saskia Elben, Stephan Chabardès, Stéphane Thobois, Christine Brefel-Courbon, Fabienne Ory-Magne, Jean-Marie Regis, David Maltête, Anne Sauvaget, Jörn Rau, Alfons Schnitzler, Michael Schüpbach, Carmen Schade-Brittinger, Gunther Deuschl, Jean-Luc Houeto, Paul Krack
BACKGROUND: Although subthalamic stimulation is a recognised treatment for motor complications in Parkinson's disease, reports on behavioural outcomes are controversial, which represents a major challenge when counselling candidates for subthalamic stimulation. We aimed to assess changes in behaviour in patients with Parkinson's disease receiving combined treatment with subthalamic stimulation and medical therapy over a 2-year follow-up period as compared with the behavioural evolution under medical therapy alone...
March 2018: Lancet Neurology
https://www.readbyqxmd.com/read/29442177/effectiveness-of-rotigotine-plus-intensive-and-goal-based-rehabilitation-versus-rotigotine-alone-in-de-novo-parkinsonian-subjects-a-randomized-controlled-trial-with-18-month-follow-up
#12
D Ferrazzoli, P Ortelli, G Riboldazzi, R Maestri, G Frazzitta
BACKGROUND: Dopamine Replacement Therapy (DRT) represents the most effective treatment for Parkinson's disease (PD). Nevertheless, several symptoms are unresponsive to treatment and its long-term use leads to serious side effects. To optimize the pharmacological management of PD, dopamine-agonists are often prescribed to "de-novo" patients. Moreover, several studies have shown the effectiveness and the synergic effect of rehabilitation in treating PD. OBJECTIVE: To evaluate the synergism between DRT and rehabilitation in treating PD, by investigating the short and the long-term effectiveness of a multidisciplinary, intensive and goal-based rehabilitation treatment (MIRT) in a group of patients treated with Rotigotine...
April 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29432286/effect-of-concomitant-medications-on-the-safety-and-efficacy-of-extended-release-carbidopa-levodopa-ipx066-in-patients-with-advanced-parkinson-disease-a-post-hoc-analysis
#13
Peter A LeWitt, Leo Verhagen Metman, Robert Rubens, Sarita Khanna, Sherron Kell, Suneel Gupta
OBJECTIVES: Extended-release (ER) carbidopa-levodopa (CD-LD) (IPX066/RYTARY/NUMIENT) produces improvements in "off" time, "on" time without troublesome dyskinesia, and Unified Parkinson Disease Rating Scale scores compared with immediate-release (IR) CD-LD or IR CD-LD plus entacapone (CLE). Post hoc analyses of 2 ER CD-LD phase 3 trials evaluated whether the efficacy and safety of ER CD-LD relative to the respective active comparators were altered by concomitant medications (dopaminergic agonists, monoamine oxidase B [MAO-B] inhibitors, or amantadine)...
March 2018: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/29428877/new-insights-on-parkinson-s-disease-from-differentiation-of-sh-sy5y-into-dopaminergic-neurons-an-involvement-of-aquaporin4-and-9
#14
Rosanna Avola, Adriana Carol Eleonora Graziano, Giovanna Pannuzzo, Ferdaous Albouchi, Venera Cardile
The purpose of this research was to explore the behavior of aquaporins (AQPs) in an in vitro model of Parkinson's disease that is a recurrent neurodegenerative disorder caused by the gradual, progressive loss of dopaminergic neurons in the substantia nigra pars compacta. Because of postmortem studies have provided evidences for oxidative damage and alteration of water flow and energy metabolism, we carried out an investigation about AQP4 and 9, demonstrated in the brain to maintain water and energy homeostasis...
April 2018: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29414391/increased-expression-of-importin-%C3%AE-exportin-5-and-nuclear-transportable-proteins-in-alzheimer-s-disease-aids-anatomic-pathologists-in-its-diagnosis
#15
Gerard Nuovo, Vicky Amann, James Williams, Paige Vandiver, Maria Quinonez, Paolo Fadda, Bernard Paniccia, Louisa Mezache, Adel Mikhail
Understanding the metabolic profile of neurons with the hyperphosphorylated tau protein characteristic of Alzheimer's disease is essential to unraveling new potential therapies and diagnostics for the surgical pathologist. We stratified 75 brain tissues from Alzheimer's disease into hyperphosphorylated tau positive or negative and did co-expression analyses and qRTPCR for importin-β and exportin-5 plus several bcl2 family members and compared the data to controls, Down's dementia and Parkinson's disease. There was a significant increase in the expression of importin-β and exportin-5 in Alzheimer's disease relative to the three other categories (each p value<0...
February 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29402651/progressive-resistance-and-balance-training-for-falls-prevention-in-long-term-residential-aged-care-a-cluster-randomized-trial-of-the-sunbeam-program
#16
Jennifer Hewitt, Stephen Goodall, Lindy Clemson, Timothy Henwood, Kathryn Refshauge
BACKGROUND: Falls prevention is an international priority, and residents of long-term aged care fall approximately 3 times more often than community dwellers. There is a relative scarcity of published trials in this setting. OBJECTIVES: Our objective was to undertake a randomized controlled trial to test the effect of published best practice exercise in long-term residential aged care. The trial was designed to determine if combined high level balance and moderate intensity progressive resistance training (the Sunbeam Program) is effective in reducing the rate of falls in residents of aged care facilities...
April 2018: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29400144/palliative-care-triggers-in-progressive-neurodegenerative-conditions-an-evaluation-using-a-multi-centre-retrospective-case-record-review-and-principal-component-analysis
#17
Jamilla Hussain, Victoria Allgar, David Oliver
BACKGROUND: The use of specific triggers has been suggested to help identify patients with progressive neurological disease who would benefit from palliative care. AIM: This study aimed to improve the evidence base for the use of triggers for patients with progressive neurological disease. DESIGN: An evaluation of palliative care services was undertaken using a retrospective case note review of the timing and presence of triggers in the last 2 years of life...
April 2018: Palliative Medicine
https://www.readbyqxmd.com/read/29396521/haloperidol-induced-catalepsy-is-ameliorated-by-deep-brain-stimulation-of-the-inferior-colliculus
#18
K-Alexander Engelhardt, Philine Marchetta, Rainer K W Schwarting, Liana Melo-Thomas
Deep brain stimulation (DBS) has evolved as a promising alternative treatment for Parkinson's disease (PD), but the underlying mechanisms remain poorly understood. Moreover, conventional DBS protocols targeted at basal ganglia sites can turn out completely ineffective for some PD patients, warranting the search for alternative targets. The inferior colliculus (IC) is a midbrain auditory relay station involved in sensorimotor processes. High-frequency 2500 Hz electrical stimulation of the IC elicits escape behaviour and interferes with haloperidol-induced catalepsy in rats, a state reminiscent of Parkinsonian akinesia, but clinical implication is limited since the protocol is aversive...
February 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29391078/prescribing-pattern-for-parkinson-s-disease-in-indian-community-before-referral-to-tertiary-center
#19
Pratibha Surathi, Nitish Kamble, Ketaki Swapnil Bhalsing, Ravi Yadav, Pramod Kumar Pal
BACKGROUND: Several factors determine the choice of medications in patients with Parkinson's disease (PD). We aimed to analyze the pattern of prescription of drugs in patients with PD before attending a tertiary-care center. METHODS: The study included chart review of 800 PD patients attending the Department of Neurology of the National Institute of Mental Health and Neurosciences in Bangalore, India. RESULTS: The mean age at onset was 51...
November 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29381583/99mtc-trodat-1-spect-ct-imaging-as-a-complementary-biomarker-in-the-diagnosis-of-parkinsonian-syndromes
#20
Bhagwant R Mittal, Apurva Sood, Jaya Shukla, Rakhee Vatsa, Priya Bhusari, Ritu Shree, Sahil Mehta, Manoj Goyal, Manish Modi
INTRODUCTION: Parkinson's disease (PD) and Parkinson plus syndromes (PPS) are neurodegenerative movement disorders caused by loss of dopamine in the basal ganglia. The diagnosis of both PD and PPS is complex as it is made solely on the basis of clinical features, with no established imaging modality to aid in the diagnosis. Technetium-99m-labeled tropane derivative (Tc-TRODAT-1) binds to the dopamine transporters present in the presynaptic membrane of the dopaminergic nerve terminal. The aim of this prospective study was to investigate the potential usefulness of Tc-TRODAT-1 imaging in the diagnosis of PD and PPS...
April 2018: Nuclear Medicine Communications
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