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https://www.readbyqxmd.com/read/28087970/liquid-chromatography-mass-spectrometry-high-resolution-for-the-determination-of-baclofen-and-its-metabolites-in-plasma-application-to-therapeutic-drug-monitoring
#1
Laurence Labat, Antonio Goncalves, Ana Rita Marques, Bénédicte Duretz, Bernard Granger, Xavier Declèves
Baclofen is actually used to manage alcohol dependence. This study describes a simple method using liquid chromatography coupled to high resolution mass spectrometry (LC-HR-MS) developed in plasma samples. This method was optimized to allow quantification of baclofen and determination of metabolic ratio of its metabolites, an oxidative deaminated metabolite of baclofen (M1) and its glucuronide form (M2). The LC-HR-MS method on Exactive® apparatus is a new developed method with all the advantages of the high resolution in full scan mode for the quantification of baclofen and detection of its metabolites in plasma...
January 14, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28073872/gambling-disorder-a-side-effect-of-an-off-label-prescription-of-baclofen-literature-review
#2
Morgane Guillou-Landreat, Caroline Victorri Vigneau, Marie Gerardin
The use of high-dose baclofen emerged in 2008 in the treatment of alcohol-use disorders. Its prescription is still off-label in France, but recent trials have suggested the interest of using high doses for alcohol dependence, so we have to deal with an increase in its use. However, we still have few data about the adverse effects of a high-dose baclofen prescription, especially in complex addictive disorders. We present a case of a 32-year-old man who sought treatment for gambling disorders (GDs). He had complex addictive disorders, including alcohol-use disorders and GDs...
January 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28072907/symptomatic-treatments-for-amyotrophic-lateral-sclerosis-motor-neuron-disease
#3
REVIEW
Louisa Ng, Fary Khan, Carolyn A Young, Mary Galea
BACKGROUND: Motor neuron disease (MND), which is also known as amyotrophic lateral sclerosis (ALS), causes a wide range of symptoms but the evidence base for the effectiveness of the symptomatic treatment therapies is limited. OBJECTIVES: To summarise the evidence from Cochrane Systematic Reviews of all symptomatic treatments for MND. METHODS: We searched the Cochrane Database of Systematic Reviews (CDSR) on 15 November 2016 for systematic reviews of symptomatic treatments for MND...
January 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28071892/transient-adenosine-release-is-modulated-by-nmda-and-gabab-receptors
#4
Michael D Nguyen, Ying Wang, Mallikarjunarao Ganesana, B Jill Venton
Adenosine is a neuroprotective agent that modulates neurotransmission and is modulated by other neurotransmitters. Spontaneous, transient adenosine is a recently discovered mode of signaling where adenosine is released and cleared from the extracellular space quickly, in less than three seconds. Spontaneous adenosine release is regulated by adenosine A1 and A2a receptors, but regulation by other neurotransmitter receptors has not been studied. Here, we examined the effect of glutamate and GABA receptors on the concentration and frequency of spontaneous, transient adenosine release by measuring adenosine with fast-scan cyclic voltammetry in the rat caudate-putamen...
January 10, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28067943/gamma-aminobutyric-acid-gaba-modulators-for-amyotrophic-lateral-sclerosis-motor-neuron-disease
#5
REVIEW
Andrea Diana, Rita Pillai, Paolo Bongioanni, Aidan G O'Keeffe, Robert G Miller, Dan H Moore
BACKGROUND: Imbalance of gamma aminobutyric acid (GABA) and related modulators has been implicated as an important factor in the pathogenesis of amyotrophic lateral sclerosis (ALS), which is also known as motor neuron disease (MND). In this context, the role and mechanism of action of gabapentin and baclofen have been extensively investigated, although with conflicting results. This is the first systematic review to assess clinical trials of GABA modulators for the treatment of ALS. OBJECTIVES: To examine the efficacy of gabapentin, baclofen, or other GABA modulators in delaying the progression of ALS, and to evaluate adverse effects of these interventions...
January 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28060888/the-association-between-gaba-modulators-and-clostridium-difficile-infection-a-matched-retrospective-case-control-study
#6
Jonathan Ström, Johan Tham, Fredrik Månsson, Jonas Ahl, Tor C Savidge, Sara M Dann, Fredrik Resman
OBJECTIVE: Recently, metabolomics studies have suggested that the neurotransmitter γ-amino butyric acid (GABA) may modulate C. difficile infection (CDI) pathogenesis. In the present study, we investigated the association between GABA-modulating pharmaceuticals and CDI development. METHODS: In July-December 2013, we performed a matched, retrospective case-control study in Skåne county, Sweden, to assess the association between the use of GABA-modulators (defined as regular use of at least one of the following: zolpidem, zopiclone, benzodiazepines, gabapentin, pregabalin or baclofen) and CDI...
2017: PloS One
https://www.readbyqxmd.com/read/28055126/neuromodulation-therapies-for-alcohol-addiction-a-literature-review
#7
REVIEW
Celeste A Azevedo, Antonios Mammis
OBJECTIVES: The goal of this review is to explore alternative neurological therapies in the treatment of alcohol use disorder; including transcranial direct current stimulation (tDCS), transcranial magnetic stimulation, deep brain stimulation (DBS), electroconvulsive therapy (ECT), and the off-label use of the GABAB receptor agonist baclofen. METHODS: A comprehensive literature search was conducted through EBSCOhost regarding the neurological therapies in the treatment of alcoholism discussed in this paper...
January 5, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28054002/data-on-pharmacological-applications-and-hypothermia-protection-against-in-vitro-oxygen-glucose-deprivation-related-neurodegeneration-of-adult-rat-ca1-region
#8
Pınar Öz, Hale Saybaşılı
In this data article, the level of chemical neuroprotection against oxygen-glucose-deprivation (OGD)-related neurodegeneration in CA1 was analyzed using the measurements on CA1 stratum pyramidale (CA1sp) width. Adult rat hippocampal slices were incubated in OGD medium for 60 min to create a model for severe ischemic conditions. Alternatively, control slices were incubated in artificial cerebrospinal fluid (ACSF) for 60 min. A study of OGD induced neurodegeneration and partial prevention by pharmacological agents reported; baclofen, memantine and l-carnitine effects were included...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/28042369/oral-baclofen-withdrawal-resulting-in-progressive-weakness-and-sedation-requiring-intensive-care-admission
#9
Bret D Alvis, Christopher M Sobey
Baclofen is a common medication used as a muscle relaxant and antispasmodic. Baclofen-withdrawal syndrome has many symptoms such as sedation, somnolence, and weakness but can include psychological symptoms. We present a 62-year-old female whose oral baclofen was not continued at a skilled nursing facility after discharge following inpatient surgery that led to the development of altered mental status and respiratory insufficiency necessitating intensive care unit admission. Abrupt cessation of baclofen, no matter the mode of administration to the patient, can lead to baclofen-withdrawal syndrome...
January 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28018156/how-a-drug-shortage-contributed-to-a-medication-error-leading-to-baclofen-toxicity-in-an-infant
#10
Bonnie Lau, Uma Khazanie, Emily Rowe, Karen Fauman
We report the case of a 4-month-old girl who developed encephalopathy, seizures, and respiratory compromise as a result of baclofen toxicity. After some investigation, the accidental ingestion of baclofen was caused by an error in compounding the patient's prescribed omeprazole with baclofen rather than sodium bicarbonate at a retail pharmacy. This error occurred because these two drugs, which were available as powders, were located side by side on the pharmacy shelf. The pharmacist further reported that their normal practice was to use injectable sodium bicarbonate rather than powder to compound an omeprazole suspension; however, the injectable form was not available due to a national shortage...
November 2016: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28012948/orbitofrontal-participation-in-sign-and-goal-tracking-conditioned-responses-effects-of-nicotine
#11
Sierra J Stringfield, Matthew I Palmatier, Charlotte A Boettiger, Donita L Robinson
Pavlovian conditioned stimuli can acquire incentive motivational properties, and this phenomenon can be measured in animals using Pavlovian conditioned approach behavior. Drugs of abuse can influence the expression of this behavior, and nicotine in particular exhibits incentive amplifying effects. Both conditioned approach behavior and drug abuse rely on overlapping corticolimbic circuitry. We hypothesize that the orbitofrontal cortex (OFC) regulates conditioned approach, and that one site of nicotine action is in the OFC where it reduces cortical output...
December 22, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/28008298/severe-protracted-spasm-of-urinary-bladder-and-autonomic-dysreflexia-caused-by-changing-the-suprapubic-catheter-in-a-cervical-spinal-cord-injury-patient-treatment-by-a-bolus-dose-and-increased-total-daily-dose-of-intrathecal-baclofen
#12
Subramanian Vaidyanathan, Tun Oo, Bakul M Soni, Peter L Hughes, Gurpreet Singh
BACKGROUND: Intrathecal administration of baclofen by implanted pump reduces rigidity and muscle spasms. Its use specifically to control bladder spasms has not been reported. CASE REPORT: A tetraplegic patient developed severe, protracted, bladder spasms, abdominal muscles spasms, and high blood pressure after change of suprapubic catheter; nifedipine, diazepam, and paracetamol did not control spasms; bolus dose of baclofen intrathecally produced prompt relief via baclofen pump...
2016: Clinical Medicine Insights. Case Reports
https://www.readbyqxmd.com/read/27988884/proactive-regional-pharmacovigilance-system-versus-national-spontaneous-reporting-for-collecting-safety-data-on-concerning-off-label-prescribing-practices-an-example-with-baclofen-and-alcohol-dependence-in-france
#13
Marine Auffret, Julien Labreuche, Alain Duhamel, Sylvie Deheul, Olivier Cottencin, Régis Bordet, Sophie Gautier, Benjamin Rolland
INTRODUCTION: Off-label prescribing (OLP) may raise serious safety concerns that traditional spontaneous reporting of adverse drug reactions (ADRs) may not identify in a timely manner. In France, the 'Multidisciplinary Consultation Service for Off-Label Prescribing in Addiction Medicine' (CAMTEA) is a proactive regional system established to identify ADRs associated with the OLP of baclofen for alcohol dependence. OBJECTIVE: The aim was to demonstrate, using the French pharmacovigilance database (FPVD), that CAMTEA allowed for the reporting of a substantial amount of ADRs, comparable in nature to those provided via spontaneous reporting...
December 17, 2016: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/27984918/phone-based-safety-monitoring-of-the-first-year-of-baclofen-treatment-for-alcohol-use-disorder-the-baclophone-cohort-study-protocol
#14
Benjamin Rolland, Marine Auffret, Julien Labreuche, Maryse Lapeyre-Mestre, Malek Dib, Aomar Kemkem, Isabelle Grit, Marie Drelon, Alain Duhamel, Nicolas Cabe, François Vabret, Olivier Guillin, Alexandre Baguet, Céline Masquelier, Alain Dervaux, Sylvie Deheul, Régis Bordet, Louise Carton, Olivier Cottencin, Renaud Jardri, Sophie Gautier
BACKGROUND: In France, baclofen is frequently used off-label for alcohol use disorder (AUD). Baclofen has been associated with diverse adverse events (AEs), but the causality of these AEs has never been properly assessed. METHODS/DESIGN: BACLOPHONE is a prospective multicenter cohort study conducted in the Hauts-de-France and Normandie French regions. BACLOPHONE consists of the phone-based monitoring of 792 patients during their first year of baclofen treatment for AUD...
December 21, 2016: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/27979827/protective-roles-of-hepatic-gaba-signaling-in-acute-liver-injury-of-rats
#15
Shuanglian Wang, Yun-Yan Xiang, Jianchun Zhu, Fan Yi, Jingxin Li, Chuanyong Liu, Wei-Yang Lu
Gamma-aminobutyric acid (GABA) is produced by various cells through the catalytic activity of glutamic acid decarboxylase (GAD). Activation of type-A GABA receptor (GABAAR) inhibits stem cell proliferation but protects differentiated cells from injures. The present study investigated hepatic GABA signaling system and the role of this system in liver physiology and pathophysiology. RT-PCR and immunoblot assays identified GAD and GABAAR subunits in rat livers and in HepG2 and Clone 9 hepatocytes. Patch-clamp recording detected GABA-induced currents in Clone 9 hepatocytes and depolarization in WITT cholangiocytes...
December 15, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27977047/basolateral-amygdala-supports-the-maintenance-of-value-and-effortful-choice-of-a-preferred-option
#16
Evan E Hart, Alicia Izquierdo
The basolateral amygdala (BLA) is known to be involved in appetitive behavior, yet its role in cost-benefit choice of qualitatively different rewards (more/less preferred), beyond magnitude differences (larger/smaller), is poorly understood. We assessed the effects of BLA inactivations on effortful choice behavior. Rats were implanted with cannulae in BLA and trained to stable lever pressing for sucrose pellets on a progressive ratio schedule. Rats were then introduced to a choice: chow was concurrently available while they could work for the preferred sucrose pellets...
December 14, 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27971455/cost-analysis-of-intrathecal-baclofen-therapy-for-the-treatment-of-spastic-cerebral-palsy-in-the-russian-federation
#17
D Ugrekhelidze, R Yagudina, A Kulikov
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27940054/betaine-attenuates-memory-impairment-after-water-immersion-restraint-stress-and-is-regulated-by-the-gabaergic-neuronal-system-in-the-hippocampus
#18
Kazuo Kunisawa, Kiwamu Kido, Natsuki Nakashima, Takuya Matsukura, Toshitaka Nabeshima, Masayuki Hiramatsu
GABA mediated neuronal system regulates hippocampus-dependent memory and stress responses by controlling plasticity and neuronal excitability. Here, we demonstrate that betaine ameliorates water-immersion restraint stress (WIRS)-induced memory impairments. This improvement was inhibited by a betaine/GABA transporter-1 (GABA transporter-2: GAT2) inhibitor, NNC 05-2090. In this study, we investigated whether memory amelioration by betaine was mediated by the GABAergic neuronal system. Adult male mice were co-administered betaine and GABA receptor antagonists after WIRS...
December 7, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27924875/gabab-receptor-mediates-opposing-adaptations-of-gaba-release-from-two-types-of-prefrontal-interneurons-after-observational-fear
#19
Lei Liu, Wataru Ito, Alexei Morozov
The observational fear (OF) paradigm in rodents, in which the subject is exposed to a distressed conspecific, elicits contextual fear learning and enhances future passive avoidance learning, which may model certain behavioral traits resulting from traumatic experiences in humans. Because these behaviors affected by the OF, require dorso-medial prefrontal cortex (dmPFC), we searched for synaptic adaptations in dmPFC resulting from OF in mice by recording synaptic responses in dmPFC layer V pyramidal neurons elicited by repeated 5 Hz electrical stimulation of dmPFC layer I, or by optogenetic stimulation of specific interneurons ex vivo one day after OF...
December 7, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27918280/lateral-not-medial-prefrontal-cortex-contributes-to-punishment-and-aversive-instrumental-learning
#20
Philip Jean-Richard-Dit-Bressel, Gavan P McNally
Aversive outcomes punish behaviors that cause their occurrence. The prefrontal cortex (PFC) has been implicated in punishment learning and behavior, although the exact roles for different PFC regions in instrumental aversive learning and decision-making remain poorly understood. Here, we assessed the role of the orbitofrontal (OFC), rostral agranular insular (RAIC), prelimbic (PL), and infralimbic (IL) cortex in instrumental aversive learning and decision-making. Rats that pressed two individually presented levers for pellet rewards rapidly suppressed responding to one lever if it also caused mild punishment (punished lever) but continued pressing the other lever that did not cause punishment (unpunished lever)...
November 2016: Learning & Memory
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