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Drug induced neurological disorders

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https://www.readbyqxmd.com/read/29751846/generation-of-three-dimensional-human-neuronal-cultures-application-to-modeling-cns-viral-infections
#1
Leonardo D'Aiuto, Jennifer Naciri, Nicholas Radio, Sesha Tekur, Dennis Clayton, Gerard Apodaca, Roberto Di Maio, Yun Zhi, Peter Dimitrion, Paolo Piazza, Matthew Demers, Joel Wood, Charleen Chu, Jason Callio, Lora McClain, Robert Yolken, James McNulty, Paul Kinchington, David Bloom, Vishwajit Nimgaonkar
BACKGROUND: A variety of neurological disorders including neurodegenerative diseases and infection by neurotropic viruses can cause structural and functional changes in the central nervous system (CNS), resulting in long-term neurological sequelae. An improved understanding of the pathogenesis of these disorders is important for developing efficacious interventions. Human induced pluripotent stem cells (hiPSCs) offer an extraordinary window for modeling pathogen-CNS interactions, and other cellular interactions, in three-dimensional (3D) neuronal cultures that can recapitulate several aspects of in vivo brain tissue...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29751779/essential-role-of-atp6ap2-enrichment-in-caveolae-lipid-raft-microdomains-for-the-induction-of-neuronal-differentiation-of-stem-cells
#2
Nehman Makdissy, Katia Haddad, Jeanne D'arc AlBacha, Diana Chaker, Bassel Ismail, Albert Azar, Ghada Oreibi, David Ayoub, Ibrahim Achkar, Didier Quilliot, Ziad Fajloun
BACKGROUND: The subcellular distribution of prorenin receptor and adaptor protein ATP6AP2 may affect neurogenesis. In this study, we hypothesized that ATP6AP2 expression and subcellular relocalization from caveolae/lipid raft microdomains (CLR-Ms) to intracellular sites may correlate with neuronal differentiation (Neu-Dif) of adipose-derived mesenchymal stem cells (ADSCs). METHODS: Human ADSCs isolated from 24 healthy donors and 24 patients with neurological disorders (ND) were cultured and induced for Neu-Dif...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29743967/neuropharmacological-potential-and-delivery-prospects-of-thymoquinone-for-neurological-disorders
#3
REVIEW
Md Jakaria, Duk-Yeon Cho, Md Ezazul Haque, Govindarajan Karthivashan, In-Su Kim, Palanivel Ganesan, Dong-Kug Choi
Thymoquinone (TQ) is an active ingredient isolated from Nigella sativa and has various pharmacological activities, such as protection against oxidative stress, inflammation, and infections. In addition, it might be a potential neuropharmacological agent because it exhibits versatile potential for attenuating neurological impairments. It features greater beneficial effects in toxin-induced neuroinflammation and neurotoxicity. In various models of neurological disorders, it demonstrates emergent functions, including safeguarding various neurodegenerative diseases and other neurological diseases, such as stroke, schizophrenia, and epilepsy...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29739137/methylphenidate-induced-lip-and-tongue-biting
#4
Cem Gokcen, Mehmet Karadag, Ihsan Aksoy
Attention deficit hyperactivity disorder (ADHD) is a life-long neurodevelopmental disorder and treatment depends on pharmacotherapy because of its biological origin. Stimulant drugs are the most commonly used treatment for ADHD and they have various side effects. Herein, we report a case who bit off the tip of her tongue with Osmotic Release Oral System methylphenidate (OROS MPH) 36 mg/day, bit the tip of her lower lip with immediate release (IR) MPH 10 mg/day and lateral part of her tongue with IR MPH 20 mg/day...
May 31, 2018: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29736957/functional-up-regulation-of-the-m-current-by-retigabine-contrasts-hyperexcitability-and-excitotoxicity-on-rat-hypoglossal-motoneurons
#5
Filippo Ghezzi, Laura Monni, Andrea Nistri
KEY POINT SUMMARY: Excessive neuronal excitability characterizes several neuropathological conditions including neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS). Hypoglossal motoneurons (HMs) that control tongue muscles, are extremely vulnerable to this disease and undergo damage and death when exposed to excessive glutamate extracellular concentration that causes excitotoxicity. Our laboratory devised an in vitro model of excitotoxicity obtained by pharmacological block of glutamate transporters...
May 7, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29705602/liraglutide-attenuates-the-depressive-and-anxiety-like-behaviour-in-the-corticosterone-induced-depression-model-via-improving-hippocampal-neural-plasticity
#6
Han Weina, Niu Yuhu, Holscher Christian, Li Birong, Shen Feiyu, Wang Le
Recent studies indicate that metabolic disorders such as diabetes and obesity are a major risk factor of psychiatric diseases. This relationship opens the opportunity to develop new antidepressant drugs by repurposing antidiabetic drugs. Previous research has demonstrated that GLP-1 analogs are neuroprotective in several neurological disease models including Alzheimer's disease (AD), Parkinson's disease (PD), and stroke. In addition, the GLP-1 analog liraglutide has been shown to promote neurogenesis, which is seen to play important roles in memory formation and cognitive and emotional processing...
April 26, 2018: Brain Research
https://www.readbyqxmd.com/read/29691608/effects-of-the-monoamine-stabilizer-osu6162-on-locomotor-and-sensorimotor-responses-predictive-of-antipsychotic-activity
#7
Vívian T da Silveira, Jivago Röpke, Ana L Matosinhos, Ana C Issy, Elaine A Del Bel, Antônio C de Oliveira, Fabrício A Moreira
The monoamine stabilizer (3S)-3-[3-(methenesulfonyl)phenyl]-1-propylpiperidine hidrochloride [(-)-OSU6162] is a promising compound for the treatment of neurological and psychiatric disorders, such as schizophrenia. Here, we tested the hypothesis that (-)-OSU6162 prevents hyperlocomotion and sensorimotor deficits in prepulse inhibition of the startle response (PPI) induced by psychomimetic drugs. Male Swiss mice received injections of (-)-OSU6162 (1, 3, 10, or 30 mg/kg), and their motor responses were investigated in the open field and in the catalepsy tests, which predicts liability to induce sedation and extrapyramidal side effects, respectively...
April 24, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29686308/unique-treatment-potential-of-cannabidiol-for-the-prevention-of-relapse-to-drug-use-preclinical-proof-of-principle
#8
Gustavo Gonzalez-Cuevas, Remi Martin-Fardon, Tony M Kerr, David G Stouffer, Loren H Parsons, Dana C Hammell, Stan L Banks, Audra L Stinchcomb, Friedbert Weiss
Cannabidiol (CBD), the major non-psychoactive constituent of Cannabis sativa, has received attention for therapeutic potential in treating neurologic and psychiatric disorders. Recently, CBD has also been explored for potential in treating drug addiction. Substance use disorders are chronically relapsing conditions and relapse risk persists for multiple reasons including craving induced by drug contexts, susceptibility to stress, elevated anxiety, and impaired impulse control. Here, we evaluated the "anti-relapse" potential of a transdermal CBD preparation in animal models of drug seeking, anxiety and impulsivity...
March 22, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29681401/capacity-control-and-responsibility-in-parkinson-s-disease-patients-with-impulse-control-disorders-views-of-neurological-and-psychiatric-experts
#9
Andrew Dawson, Jordie Michael, Ella Dilkes-Frayne, Wayne Hall, Nadeeka N Dissanayaka, Adrian Carter
Dopamine replacement therapy can induce impulse control disorders (ICDs) (e.g., hypersexuality) in susceptible Parkinson's disease patients. ICDs can sometimes result in criminal offending. In a number of past Commonwealth cases, it appears offending ICD patients have been considered to be suffering from 'irresistible impulses' such that their decision-making capacity, behavioural control and responsibility were totally compromised. This contrasts with courts' general scepticism of drug-induced 'compulsion' in cases of addiction-related offending...
April 19, 2018: International Journal of Law and Psychiatry
https://www.readbyqxmd.com/read/29674237/eslicarbazepine-acetate-exposure-in-pregnant-women-with-epilepsy
#10
Raquel Costa, Luís M Magalhães, Joana Graça, Mariana Vieira, Helena Gama, Joana Moreira, José F Rocha, Patrício Soares-da-Silva
PURPOSE: Epilepsy is a common neurologic disorder requiring continued treatment during pregnancy. Treatment with antiepileptic drugs (AEDs) is needed for seizure control, but the risk of adverse events has to be minimized for both mother and foetus. Available data on pregnancy and foetal/postnatal outcomes following eslicarbazepine acetate (ESL) exposure via parent is herein presented for the first time. METHODS: ESL's global safety database was reviewed to identify pregnancy cases with exposure to ESL reported up to October 21st, 2017...
April 10, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29610328/ectopic-neurogenesis-induced-by-prenatal-antiepileptic-drug-exposure-augments-seizure-susceptibility-in-adult-mice
#11
Atsuhiko Sakai, Taito Matsuda, Hiroyoshi Doi, Yukiko Nagaishi, Kiyoko Kato, Kinichi Nakashima
Epilepsy is a neurological disorder often associated with seizure that affects ∼0.7% of pregnant women. During pregnancy, most epileptic patients are prescribed antiepileptic drugs (AEDs) such as valproic acid (VPA) to control seizure activity. Here, we show that prenatal exposure to VPA in mice increases seizure susceptibility in adult offspring through mislocalization of newborn neurons in the hippocampus. We confirmed that neurons newly generated from neural stem/progenitor cells (NS/PCs) are integrated into the granular cell layer in the adult hippocampus; however, prenatal VPA treatment altered the expression in NS/PCs of genes associated with cell migration, including CXC motif chemokine receptor 4 ( Cxcr4 ), consequently increasing the ectopic localization of newborn neurons in the hilus...
April 17, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29593659/how-to-control-htlv-1-associated-diseases-preventing-de-novo-cellular-infection-using-antiviral-therapy
#12
Amandine Pasquier, Sandrine Alais, Loic Roux, Maria-Isabel Thoulouze, Karine Alvarez, Chloé Journo, Hélène Dutartre, Renaud Mahieux
Five to ten million individuals are infected by Human T-cell Leukemia Virus type 1 (HTLV-1). HTLV-1 is transmitted through prolonged breast-feeding, by sexual contacts and by transmission of infected T lymphocytes through blood transfusion. One to ten percent of infected carriers will develop a severe HTLV-1-associated disease: Adult-T-cell leukemia/lymphoma (ATLL), or a neurological disorder named Tropical Spastic Paraparesis/HTLV-1 Associated Myelopathy (TSP/HAM). In vivo , HTLV-1 is mostly detected in CD4+ T-cells, and to a lesser extent in CD8+ T cells and dendritic cells...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29570959/galantamine-memantine-combination-for-cognitive-impairments-due-to-electroconvulsive-therapy-traumatic-brain-injury-and-neurologic-and-psychiatric-disorders-kynurenic-acid-and-mismatch-negativity-target-engagement
#13
Maju Mathew Koola
Cognitive impairments due to electroconvulsive therapy (ECT), traumatic brain injury (TBI), and neurologic and psychiatric disorders are prevalent. Cholinergic and glutamatergic pathways, α-7 nicotinic acetylcholine (α-7nACh) receptor, and N-methyl-d-aspartate (NMDA) receptor are potential pathophysiologic mechanisms in all of these conditions. Galantamine not only is an acetylcholinesterase inhibitor but has a dual mode of action as a α-7nACh receptor modulator as well. Memantine is a noncompetitive NMDA receptor antagonist...
March 1, 2018: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/29568349/exploring-the-pathogenesis-of-canine-epilepsy-using-a-systems-genetics-method-and-implications-for-anti-epilepsy-drug-discovery
#14
Ze-Jia Cui, Ye-Mao Liu, Qiang Zhu, Jingbo Xia, Hong-Yu Zhang
Epilepsy is a common neurological disorder in domestic dogs. However, its complex mechanism involves multiple genetic and environmental factors that make it challenging to identify the real pathogenic factors contributing to epilepsy, particularly for idiopathic epilepsy. Conventional genome-wide association studies (GWASs) can detect various genes associated with epilepsy, although they primarily detect the effects of single-site mutations in epilepsy while ignoring their interactions. In this study, we used a systems genetics method combining both GWAS and gene interactions and obtained 26 significantly mutated subnetworks...
March 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29551609/why-and-when-to-measure-ammonemia-in-cirrhosis
#15
Maxime Mallet, Nicolas Weiss, Dominique Thabut, Marika Rudler
Hyperammonemia plays a key role in the pathophysiology of hepatic encephalopathy (HE) and most HE treatments are ammonia-lowering drugs. However, the usefulness of measuring ammonemia in routine practice remains controversial and not recommended systematically even when neurological symptoms are present. First, ammonemia measurement should be carefully performed in order to avoid a falsely elevated result. When performed, a normal ammonemia in a cirrhotic patient with neurological symptoms should lead to reconsider the diagnosis of HE...
March 15, 2018: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29546690/improvement-of-memory-and-neurological-deficit-with-ocimum-basilicum-l-extract-after-ischemia-reperfusion-induced-cerebral-injury-in-mice
#16
Varinder Singh, Pawan Krishan, Richa Shri
Oxidative stress is strongly implicated in the pathogenesis of stroke. Strategies using antioxidants to improve neurological functions after stroke have, thus, gained significant attention. Ocimum basilicum L. is used traditionally to treat CNS disorders. Its antioxidant capacity is well established. Our laboratory has reported protective effects of pre-treatment with O. basilicum in experimental stroke, but its curative (post-treatment) effects in ischemic stroke have not been documented. Hence, the present study was aimed to evaluate the effect of O...
March 15, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29544541/highly-efficient-methods-to-obtain-homogeneous-dorsal-neural-progenitor-cells-from-human-and-mouse-embryonic-stem-cells-and-induced-pluripotent-stem-cells
#17
Meixiang Zhang, Justine Ngo, Filomena Pirozzi, Ying-Pu Sun, Anthony Wynshaw-Boris
BACKGROUND: Embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) have been widely used to generate cellular models harboring specific disease-related genotypes. Of particular importance are ESC and iPSC applications capable of producing dorsal telencephalic neural progenitor cells (NPCs) that are representative of the cerebral cortex and overcome the challenges of maintaining a homogeneous population of cortical progenitors over several passages in vitro. While previous studies were able to derive NPCs from pluripotent cell types, the fraction of dorsal NPCs in this population is small and decreases over several passages...
March 15, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29534535/chondroprotective-effects-and-mechanisms-of-dextromethorphan-repurposing-antitussive-medication-for-osteoarthritis-treatment
#18
Liv Weichien Chen, Feng-Cheng Liu, Li-Feng Hung, Chuan-Yueh Huang, Shiu-Bii Lien, Leou-Chyr Lin, Jenn-Haung Lai, Ling-Jun Ho
Osteoarthritis (OA) is the most common joint disorder and primarily affects older people. The ideal anti-OA drug should have a modest anti-inflammatory effect and only limited or no toxicity for long-term use. Because the antitussive medication dextromethorphan (DXM) is protective in atherosclerosis and neurological diseases, two common disorders in aged people, we examined whether DXM can be protective in pro-inflammatory cytokine-stimulated chondrocytes and in a collagen-induced arthritis (CIA) animal model in this study...
March 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29519947/acute-hyperkinetic-movement-disorders-in-italian-paediatric-emergency-departments
#19
Umberto Raucci, Pasquale Parisi, Nicola Vanacore, Giacomo Garone, Claudia Bondone, Antonella Palmieri, Lucia Calistri, Agnese Suppiej, Raffaele Falsaperla, Alessandro Capuano, Valentina Ferro, Antonio Francesco Urbino, Ramona Tallone, Alessandra Montemaggi, Stefano Sartori, Piero Pavone, Margherita Mancardi, Federico Melani, Lucrezia Ilvento, Maria Federica Pelizza, Antonino Reale
INTRODUCTION: Limited data exist on epidemiology, clinical presentation and management of acute hyperkinetic movement disorders (AHMD) in paediatric emergency departments (pED). METHODS: We retrospectively analysed a case series of 256 children (aged 2 months to 17 years) presenting with AHMD to the pEDs of six Italian tertiary care hospitals over a 2-year period (January 2012 to December 2013). RESULTS: The most common type of AHMD was tics (44...
March 8, 2018: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/29503325/parkinson-s-disease-a-review
#20
REVIEW
Divya M Radhakrishnan, Vinay Goyal
Parkinson's disease is a common movement disorder seen in neurological practice, but the diagnosis and management is challenging. The diagnosis is clinical and sometimes difficult, considering a large number of motor and non-motor symptoms in PD patients. The medical management of PD patients is difficult, as choices of drugs are limited and levodopa is the mainstay of treatment. However, levodopa-induced dyskinesia (LID) is commonly seen in Parkinson's disease patients treated with levodopa. This side effect is usually encountered after a long duration of treatment, but occasionally, this may be seen even after a few days or months of treatment...
March 2018: Neurology India
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