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https://www.readbyqxmd.com/read/28424564/new-developments-in-the-management-of-narcolepsy
#1
REVIEW
Vivien C Abad, Christian Guilleminault
Narcolepsy is a life-long, underrecognized sleep disorder that affects 0.02%-0.18% of the US and Western European populations. Genetic predisposition is suspected because of narcolepsy's strong association with HLA DQB1*06-02, and genome-wide association studies have identified polymorphisms in T-cell receptor loci. Narcolepsy pathophysiology is linked to loss of signaling by hypocretin-producing neurons; an autoimmune etiology possibly triggered by some environmental agent may precipitate hypocretin neuronal loss...
2017: Nature and Science of Sleep
https://www.readbyqxmd.com/read/28424220/gababr-induced-egfr-transactivation-promotes-migration-of-human-prostate-cancer-cells
#2
Shuai Xia, Cong He, Yini Zhu, Suyun Wang, Huiping Li, Zhongling Zhang, Xinnong Jiang, Jianfeng Liu
G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) act in concert to regulate cell growth, proliferation, survival, and migration. Metabotropic GABAB receptor (GABABR) is the GPCR for the main inhibitory neurotransmitter GABA in the central nervous system. Increased expression of GABABR has been detected in human cancer tissues and cancer cell lines, but the role of GABABR in these cells is controversial and the underlying mechanism remains poorly understood. Here, we investigated whether GABABR hijacks RTK signaling to modulate the fates of human prostate cancer cells...
April 19, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28419642/nicotine-induced-molecular-alterations-are-modulated-by-gabab-receptor-activity
#3
Andres P Varani, Valeria T Pedrón, Amira J Aon, Christian Höcht, Gabriela B Acosta, Bernhard Bettler, Graciela N Balerio
It has been demonstrated that GABAB receptors modulate nicotine (NIC) reward effect; nevertheless, the mechanism implicated is not well known. In this regard, we evaluated the involvement of GABAB receptors on the behavioral, neurochemical, biochemical and molecular alterations associated with the rewarding effects induced by NIC in mice, from a pharmacological and genetic approach. NIC-induced rewarding properties (0.5 mg/kg, subcutaneously, sc) were evaluated by conditioned place preference (CPP) paradigm...
April 17, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28416021/effects-of-gabab-receptors-in-the-insula-on-recognition-memory-observed-with-intellicage
#4
Nan Wu, Feng Wang, Zhe Jin, Zhen Zhang, Lian-Kun Wang, Chun Zhang, Tao Sun
BACKGROUND: Insular function has gradually become a topic of intense study in cognitive research. Recognition memory is a commonly studied type of memory in memory research. GABABR has been shown to be closely related to memory formation. In the present study, we used intellicage, which is a new intelligent behavioural test system, and a bilateral drug microinjection technique to inject into the bilateral insula, to examine the relationship between GABABR and recognition memory. METHODS: Male Sprague-Dawley rats were randomly divided into control, Sham, Nacl, baclofen and CGP35348 groups...
April 17, 2017: Behavioral and Brain Functions: BBF
https://www.readbyqxmd.com/read/28406070/an-investigation-of-the-relationship-between-autonomic-dysreflexia-and-intrathecal-baclofen-in-patients-with-spinal-cord-injury
#5
Anna Sophia Del Fabro, Melvin Mejia, Gregory Nemunaitis
OBJECTIVE: To study the relationship between autonomic dysreflexia and intrathecal baclofen in patients with spinal cord injury. DESIGN: Retrospective chart review. SETTING: Inpatient and outpatient acute rehabilitation facility. PARTICIPANTS: Thirty-four subjects. INTERVENTIONS: We reviewed patients' medical records to ascertain the presence of symptomatic autonomic dysreflexia (AD) prior to and after implantation of an intrathecal baclofen (ITB) pump for spasticity in spinal cord injury patients...
April 13, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28382542/kk-92a-a-novel-gabab-receptor-positive-allosteric-modulator-attenuates-nicotine-self-administration-and-cue-induced-nicotine-seeking-in-rats
#6
Xia Li, Emmanuel Sturchler, Katarzyna Kaczanowska, Michael Cameron, M G Finn, Patrick Griffin, Patricia McDonald, Athina Markou
RATIONALE: GABAB receptors (GABABR) play a critical role in GABAergic neurotransmission in the brain and are thought to be one of the most promising targets for the treatment of drug addiction. GABABR positive allosteric modulators (PAMs) have shown promise as potential anti-addictive therapies, as they lack the sedative and muscle relaxant properties of full GABAB receptor agonists such as baclofen. OBJECTIVES: The present study was aimed at developing novel, selective, and potent GABABR PAMs with efficacy on abuse-related effects of nicotine...
April 5, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28379909/the-effect-of-continuous-intrathecal-baclofen-therapy-on-ambulatory-children-with-cerebral-palsy
#7
Blazej Pruszczynski, Julieanne Sees, Robert Hulbert, Chris Church, John Henley, Tim Niiler, Freeman Miller
The effect of a continuous intrathecal infusion of baclofen (CITB) was retrospectively studied in 19 ambulatory children with cerebral palsy (aged 12.4±4.9 years at CITB initiation). The mean clinical follow-up was 5.1±2.4 years and the mean follow-up gait analysis was 2.8±1.9 years. Spastic cerebral palsy diagnosis [14 (74%)] was most frequent. Most patients [11 (58%)] were Gross Motor Function Classification System level III. CITB significantly improved muscle tone and knee flexion at initial contact (P<0...
April 4, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28376639/the-effect-of-symptom-controlling-medication-on-gait-outcomes-in-people-with-multiple-sclerosis-a-systematic-review
#8
Kate Behm, Prue Morgan
PURPOSE: To synthesise and critically appraise randomised controlled trials examining the effect of symptom-controlling medication on gait outcomes in people with multiple sclerosis (MS). METHOD: The literature search examined five databases (Medline, Embase, AMED, Cochrane (CENTRAL), and CINAHL until the end of November 2016. Eligible studies included medication to address symptoms associated with MS and an objective gait outcome measure. Two reviewers independently extracted data and assessed study quality using structured data extraction forms and the PEDro scale...
April 4, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28361168/influence-of-leptin-and-gabab-receptor-agonist-and-antagonist-on-neurons-of-the-hypothalamic-infundibular-nucleus-in-the-chicken
#9
S Bogatyrev, K S Yakimova, B Tzschentke
In birds and mammals, the neuroendocrine regulation of energy balance is conserved in many aspects. Despite significant similarities between the two groups, differences in the regulatory mechanisms were detected. The present study was performed to carry out investigations of the influence of human leptin and GABAB-receptor agonist and antagonist on the firing rate of neurons of the Nucleus infundibuli hypothalami in brain slices from juvenile chickens. For the first time, we demonstrated a clear, dose-related change in the firing rate of hypothalamic neurons in juvenile chickens after the acute application of recombinant human leptin (1, 10, and 100 nM)...
March 30, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28353528/baclofen-pumps-uses-and-complications
#10
(no author information available yet)
No abstract text is available yet for this article.
April 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28353527/baclofen-pumps-uses-and-complications
#11
Seth M Woolf, Carl R Baum
Intrathecal baclofen therapy, given via an implanted pump in the abdominal wall either as a continuous infusion or bolus dosing, has been used for more than 25 years to treat the spasticity and dystonia associated with various brain and spinal cord conditions. Pediatric clinicians occasionally encounter baclofen pumps, and in the pediatric setting, significant morbidity can arise from their use. This article presents the background, mechanism of action, uses, and complications of intrathecal baclofen therapy and discusses various management strategies should complications occur...
April 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28346213/development-and-application-of-a-high-performance-liquid-chromatography-stability-indicating-assay-for-beyond-use-date-determination-of-compounded-topical-gels-containing-multiple-active-drugs
#12
Gregory Gorman, Simara Sokom, Lori Coward, John J Arnold
Topical gels compounded by pharmacists are important clinical tools for the management of pain. Nevertheless, there is often a dearth of information about the chemical stability of drugs included in these topical formulations, complicating the assignment of beyond-use dating. The purpose of this study was to develop a high-performance liquid chromatography photodiode array-based stability-indicating assay that could simultaneously resolve six drugs (amitriptyline, baclofen, clonidine, gabapentin, ketoprofen, lidocaine) commonly included in topical gels for pain management and their potential degradation products...
March 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28337838/the-selective-metabotropic-glutamate-receptor-5-antagonist-mavoglurant-afq056-reduces-the-incidence-of-reflux-episodes-in-dogs-and-patients-with-moderate-to-severe-gastroesophageal-reflux-disease
#13
M-L Rouzade-Dominguez, N Pezous, O J David, R Tutuian, S Bruley des Varannes, J Tack, P Malfertheiner, H-D Allescher, M Ufer, A Rühl
BACKGROUND: Transient lower esophageal sphincter relaxations (TLESRs) induced by gastric distension are modulated by the metabotropic glutamate receptor 5 (mGluR5) that influences the vagal reflex loop. We therefore aimed to examine the effects of the selective mGluR5 antagonist mavoglurant (AFQ056) on the number of TLESRs in dogs and reflux episodes in patients with gastroesophageal reflux disease (GERD). METHODS: In a dog model, the number of meal-induced TLESRs was determined after intravenous (0...
March 23, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28335036/validated-method-for-the-screening-and-quantification-of-baclofen-gabapentin-and-pregabalin-in-human-post-mortem-whole-blood-using-protein-precipitation-and-liquid-chromatography-tandem-mass-spectrometry
#14
Limon Nahar, Amy Smith, Rajan Patel, Rebecca Andrews, Sue Paterson
There has been a rapid increase in the number of prescriptions for baclofen (BLF), gabapentin (GBP) and pregabalin (PGL) in the UK since their introduction to therapy. Recent studies across the European Union and USA have shown the illicit abuse potential of these drugs and deaths have been observed. A simple, reliable and fully validated method was developed for the screening and quantification of BLF, GBP and PGL in human post-mortem (PM) blood. The analytes and their deuterated analogs as internal standard were extracted from blood using a single addition acetonitrile protein precipitation reaction followed by analysis using liquid chromatography-tandem mass spectrometry (LC-MS-MS) with triggered dynamic multiple reaction monitoring mode for simultaneous confirmation and quantification...
March 10, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28333667/effect-of-penetration-enhancers-on-the-percutaneous-delivery-of-pain-management-actives
#15
John Trimble, Bob Light
Transdermal compositions for pain management are comprised of nonsteroidal anti-inflammatory drugs, opioid drugs, and adjuvant drugs acting on: voltage-gated channels, gamma-aminobutyric acid receptors, acute musculoskeletal pain, and as an antidepressant. In this work, baclofen, bupivacaine, cyclobenzaprine, diclofenac, gabapentin, ibuprofen, ketamine, and pentoxifylline were loaded in transdermal compositions, prepared using a mixture of lipids (isopropyl palmitate and mineral oil) and one of two selected penetration enhancer mixtures: alkyl dimethicone, phenyl trimethicone, and polyoxyethylene sorbitan monostearate; and cetostearyl polyoxyethylene ether and ethylene oxide/propylene oxide copolymer...
May 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28324056/gabaergic-neurons-and-their-modulatory-effects-on-gnrh3-in-zebrafish
#16
Yanlong Song, Binbin Tao, Ji Chen, Shaoting Jia, Zuoyan Zhu, Vance L Trudeau, Wei Hu
γ-Aminobutyric acid (GABA) is a major amino acid neurotransmitter in the vertebrate brain. To provide detailed information on the distribution of the GABA in zebrafish (Danio rerio), neurons were labeled with mCherry driven by the glutamic acid decarboxylase 67 (gad67) promoter. In the transgenic line Tg(gad67:mCherry), mCherry-positive gad67 cell bodies were predominantly localized to the olfactory bulb, pallial zones, subpallium zones, parvocellular preoptic nucleus, periventricular gray zone of optic tectum, torus semicircularis, posterior tuberculum, medial longitudinal fascicle, caudal zone of periventricular hypothalamus, and oculomotor nucleus...
April 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323246/the-role-of-spinal-gabab-receptors-in-cancelr-induced-bone-pain-in-rats
#17
Ya-Qun Zhou, Shu-Ping Chen, Dai-Qiang Liu, Anne Manyande, Wen Zhang, Shao-Bing Yang, Bing-Rui Xiong, Qiao-Chu Fu, Zhen-Peng Song, Heike Rittner, Da-Wei Ye, Yu-Ke Tian
Cancer-induced bone pain (CIBP) remains a major challenge in advanced cancer patients due to our lack of understanding of its mechanisms. Previous studies have demonstrated the vital role of GABAB receptors (GABABRs) in regulating nociception and various neuropathic pain models have shown diminished activity of GABABRs. However, the role of spinal GABABRs in CIBP remains largely unknown. In this study, we investigated the specific cellular mechanisms of GABABRs in the development and maintenance of CIBP in rats...
March 18, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28321555/medical-treatment-of-gastroesophageal-reflux-disease
#18
Daniel A Kroch, Ryan D Madanick
Medical treatment is effective in the majority of patients with gastroesophageal reflux disease (GERD). Lifestyle modifications are often recommended for patients with GERD, although the data supporting lifestyle recommendations are limited. Antacids are often used to treat the symptoms of GERD, but their effect is short-lived. H2-receptor antagonists and proton-pump inhibitors provide more effective options for remission of GERD symptoms and healing of esophagitis. Prokinetic medications (e.g., metoclopramide) have not been proven to help in the control of symptoms...
March 20, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28319872/intrathecal-baclofen-bolus-reduces-exaggerated-extensor-coactivation-during-pre-swing-and-early-swing-of-gait-after-acquired-brain-injury
#19
John W Chow, Stuart A Yablon, Dobrivoje S Stokic
OBJECTIVE: To characterize the concurrent activation of rectus femoris (RF) and medial gastrocnemius (MG) muscles (extensor coactivation) during gait in subjects with pronounced resting hypertonia after acquired brain injury (ABI) and examine changes after intrathecal baclofen (ITB) bolus injection. METHODS: Magnitude and duration of extensor coactivation during different phases of gait were assessed by recording gait kinematics and activity in bilateral RF and MG muscles in 18 controls and 18 ABI subjects before and at 2, 4, and 6h after a 50-μg ITB injection...
May 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28319159/drug-therapy-for-alcohol-dependence-in-primary-care-in-the-uk-a-clinical-practice-research-datalink-study
#20
Andrew Thompson, Darren M Ashcroft, Lynn Owens, Tjeerd P van Staa, Munir Pirmohamed
AIM: To evaluate drug therapy for alcohol dependence in the 12 months after first diagnosis in UK primary care. DESIGN: Open cohort study. SETTING: General practices contributing data to the UK Clinical Practice Research Database. PARTICIPANTS: 39,980 people with an incident diagnosis of alcohol dependence aged 16 years or older between 1 January 1990 and 31 December 2013. MAIN OUTCOME MEASURE: Use of pharmacotherapy (acamprosate, disulfiram, naltrexone, baclofen and topiramate) to promote abstinence from alcohol or reduce drinking to safe levels in the first 12 months after a recorded diagnosis of alcohol dependence...
2017: PloS One
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