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https://www.readbyqxmd.com/read/28231529/new-enantioselective-lc-method-development-and-validation-for-the-assay-of-modafinil
#1
Marianna Harvanová, Taťána Gondová
For the first time, a new, fast and sensitive chromatographic method for the separation and determination of modafinil enantiomers was developed on chiral stationary phase with macrocyclic glycopeptide teicoplanin in the polar organic mode. The effect of the mobile phase composition and column temperature on the retention and enantioseparation were studied. The separation was performed using a Chirobiotic T column (250×4.6mm, 5μm) with methanol and triethylamine (100/0.05, v/v) as the mobile phase at a flow rate of 1...
February 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28229024/modafinil-decreases-anxiety-like-behaviour-in-zebrafish
#2
Adrian Johnson, Trevor James Hamilton
Modafinil (2-((diphenylmethyl)sulfinyl)acetamide), a selective dopamine and norepinephrine transporter inhibitor, is most commonly prescribed for narcolepsy but has gained recent interest for treating a variety of disorders. Zebrafish (Danio rerio) are becoming a model of choice for pharmacological and behavioural research. To investigate the behavioural effects of modafinil on anxiety, we administered doses of 0, 2, 20, and 200 mg/L for 30 minutes then tested zebrafish in the novel approach test. In this test, the fish was placed into a circular arena with a novel object in the center and motion-tracking software was used to quantify the time the fish spent in the outer area of the arena (thigmotaxis zone), middle third of the arena (transition zone) and center of the arena, as well as total distance traveled, immobility and meandering...
2017: PeerJ
https://www.readbyqxmd.com/read/28207526/restoration-of-the-ascending-reticular-activating-system-compressed-by-hematoma-in-a-stroke-patient
#3
Sung Ho Jang, Jeong Pyo Seo
RATIONALE: We report on restoration of the ascending reticular activating system (ARAS), compressed by an intracerebral hematoma and perihematomal edema following a stroke. The restoration of the ARAS was demonstrated by diffusion tensor tractography (DTT). PATIENT CONCERNS: In a 60-year-old male, a brain MRI taken at 2 weeks after the surgery showed a hematoma and perihematomal edema in the left posterolateral pons and cerebellum, which were markedly resolved on a brain MRI after 5 weeks...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28144880/use-of-stimulants-in-bipolar-disorder
#4
REVIEW
Giulio Perugi, Giulia Vannucchi, Fulvio Bedani, Ettore Favaretto
Several international guidelines indicate stimulants, including methylphenidate (MPH), amphetamines and derivatives, modafinil, and armodafinil among the second-third-line choices for bipolar depression. Efficacy of stimulants has been also reported for the management of residual depressive symptoms such as fatigue and sleepiness and for the management of affective, cognitive, and behavioral symptoms in children and adult bipolar patients with comorbid ADHD. Few case reports show positive results with MPH in the treatment of resistant mania...
January 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28125506/oral-modafinil-facilitates-intracranial-self-stimulation-in-rats-comparison-with-methylphenidate
#5
Matthew F Lazenka, S Stevens Negus
Modafinil is a low-potency inhibitor of dopamine transporters (DAT) approved clinically to promote wakefulness. In most procedures used for abuse-liability assessment, modafinil produces effects similar to those of abused DAT inhibitors such as cocaine and methylphenidate, although modafinil often shows lower effectiveness. However, modafinil has failed to maintain drug self-administration or produce conditioned place preferences in rats. The low potency and poor solubility of modafinil complicate its delivery by parenteral routes of administration commonly used in rats, and this may contribute toward negative results...
January 25, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28119083/methylphenidate-modafinil-and-caffeine-for-cognitive-enhancement-in-chess-a-double-blind-randomised-controlled-trial
#6
Andreas G Franke, Patrik Gränsmark, Alexandra Agricola, Kai Schühle, Thilo Rommel, Alexandra Sebastian, Harald E Balló, Stanislav Gorbulev, Christer Gerdes, Björn Frank, Christian Ruckes, Oliver Tüscher, Klaus Lieb
Stimulants and caffeine have been proposed for cognitive enhancement by healthy subjects. This study investigated whether performance in chess - a competitive mind game requiring highly complex cognitive skills - can be enhanced by methylphenidate, modafinil or caffeine. In a phase IV, randomized, double-blind, placebo-controlled trial, 39 male chess players received 2×200mg modafinil, 2×20mg methylphenidate, and 2×200mg caffeine or placebo in a 4×4 crossover design. They played twenty 15-minute games during two sessions against a chess program (Fritz 12; adapted to players' strength) and completed several neuropsychological tests...
January 21, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28114089/-non-conventional-pharmacological-agents-for-the-treatment-of-bipolar-disorder-%C3%AE-systematic-review-of-the-evidence
#7
K N Fountoulakis, D Balaris, V Nikolaou, J Νimatoudis
Bipolar disorder (BD) has a complex and variable clinical picture which is characterized by many different phacets and phases and as a result its therapeutical options are also complex and often unsatisfactory. Typically the so-called "mood stabilizers" are used in the treatment of BD and in this class lithium and specific antiepileptics are included. The present study aimed to systematically review the literature concerning the presence of randomized double blind clinical trials of 'non conventional' pharmaceutical treatment options...
October 2016: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/28111036/an-lc-ms-ms-method-for-the-simultaneous-determination-of-15-antipsychotics-and-two-metabolites-in-hair-and-its-application-to-rat-hair
#8
Juhyun Sim, Eunmi Kim, Wonkyung Yang, Sanghee Woo, Sangwhan In
In recent years, the inappropriate use of antipsychotics by young Korean men has become a social problem. As military service exemptions are given for mental illness, some men pose as mental health patients to avoid military service. In order to verify the authenticity of mental illnesses, we developed simultaneous analytical methods for the detection of 15 antipsychotics and 2 of their metabolites in hair using liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. The target drugs were modafinil, atomoxetine, aripiprazole, benztropine, buspirone, duloxetine, gabapentin, oxcarbazepine, topiramate, escitalopram, paliperidone, ziprasidone, lamotrigine, clonazepam, levetiracetam, and metabolites of oxcarbazepine and clonazepam...
January 12, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28073796/comparative-efficacy-and-tolerability-of-pharmacological-interventions-for-attention-deficit-hyperactivity-disorder-in-children-adolescents-and-adults-protocol-for-a-systematic-review-and-network-meta-analysis
#9
Samuele Cortese, Nicoletta Adamo, Christina Mohr-Jensen, Adrian J Hayes, Sahar Bhatti, Sara Carucci, Cinzia Del Giovane, Lauren Z Atkinson, Tobias Banaschewski, Emily Simonoff, Alessandro Zuddas, Corrado Barbui, Marianna Purgato, Hans-Christoph Steinhausen, Farhad Shokraneh, Jun Xia, Andrea Cipriani, David Coghill
INTRODUCTION: Attention-deficit/hyperactivity disorder (ADHD) is a major public health issue. Pharmacological treatments play an important role in the multimodal treatment of ADHD. Currently, there is a lack of up-to-date and comprehensive evidence on how available ADHD drugs compare and rank in terms of efficacy and tolerability, in children or adolescents as well as in adults. We will conduct a network meta-analysis (NMA), integrating direct and indirect comparisons from randomised controlled trials (RCTs), to rank pharmacological treatments for ADHD according to their efficacy and tolerability profiles...
January 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28067776/sensitivity-of-quantitative-signal-detection-in-regards-to-pharmacological-neuroenhancement
#10
Maximilian Gahr, Bernhard J Connemann, Carlos Schönfeldt-Lecuona, René Zeiss
Pharmacological neuroenhancement (PNE) is a form of abuse and has not yet been addressed by methods of pharmacovigilance. In the present study, we tested if quantitative signal detection may be sensitive in regards to PNE. We evaluated the risk of drug abuse and dependence (DAAD) related to substances that are known to be used for PNE and divided this group into agents with (methylphenidate) and without a known abuse potential outside the field of PNE (atomoxetine, modafinil, acetylcholine esterase inhibitors, and memantine)...
January 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27994353/diagnosis-and-management-of-narcolepsy-in-the-indian-scenario
#11
Sachin Sureshbabu, Abdul Muniem, Manvir Bhatia
INTRODUCTION: The diagnosis and management of narcolepsy in the Indian context needs to be revisited especially in the wake of concerns raised by sleep medicine experts that the entity could be formidably underdiagnosed, as well as undertreated in our setting. MATERIALS AND METHODS: The history, clinical records, polysomnographic/multiple sleep latency test data, and treatment records of five hundred consecutive patients attending a dedicated sleep clinic between the years 2013 and 2016 were retrospectively analyzed...
October 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27981901/molecular-insights-of-creb-and-map-k-phosphorylation-by-modafinil-in-wake-related-brain-areas
#12
Ramsés Jiménez-Moreno, Adrián Amaury Farret-Ramos, Adriana Valle-Ayala, Niurka Trujillo-Paredes, Eric Murillo-Rodríguez
BACKGROUND: Modafinil (MOD) is a waking-promoting compound that is used for treatment of sleep disorders such as sleepiness and narcolepsy. Despite its efficiency, there are missing pieces of evidence regarding the mechanism of action of MOD at molecular level. For example, current data have demonstrated that MOD induces alertness by activating several wake-related neurotransmitter receptors, including dopamine 1 (D1) receptor. Nevertheless, an intriguing point highlights that MOD might be activating intracellular elements bounded to D1 receptor, such as cAMP response element-binding (CREB) or mitogen-activated protein kinase (MAP-K) expression...
December 14, 2016: Current Molecular Pharmacology
https://www.readbyqxmd.com/read/27938918/findings-of-the-maintenance-of-wakefulness-test-and-its-relationship-with-response-to-modafinil-therapy-for-residual-excessive-daytime-sleepiness-in-obstructive-sleep-apnea-patients-adequately-treated-with-nasal-continuous-positive-airway-pressure
#13
Yuichi Inoue, Masuo Miki, Toshiyuki Tabata
OBJECTIVE: We aimed to examine the relationship between subjective and objective sleepiness in obstructive sleep apnea syndrome (OSAS) patients with residual sleepiness, and to determine whether baseline objective sleepiness severity predicts the response to modafinil therapy. METHODS: Data were obtained from a randomized, placebo-controlled modafinil (200 mg/day) study in Japanese OSAS patients with residual sleepiness receiving nasal continuous positive pressure (n-CPAP) treatment...
November 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27933960/novel-and-high-affinity-2-diphenylmethyl-sulfinyl-acetamide-modafinil-analogues-as-atypical-dopamine-transporter-inhibitors
#14
Jianjing Cao, Rachel D Slack, Oluyomi M Bakare, Caitlin Burzynski, Rana Rais, Barbara S Slusher, Theresa Kopajtic, Alessandro Bonifazi, Michael P Ellenberger, Hideaki Yano, Yi He, Guo-Hua Bi, Zheng-Xiong Xi, Claus J Loland, Amy Hauck Newman
The development of pharmacotherapeutic treatments of psychostimulant abuse has remained a challenge, despite significant efforts made toward relevant mechanistic targets, such as the dopamine transporter (DAT). The atypical DAT inhibitors have received attention due to their promising pharmacological profiles in animal models of cocaine and methamphetamine abuse. Herein, we report a series of modafinil analogues that have an atypical DAT inhibitor profile. We extended SAR by chemically manipulating the oxidation states of the sulfoxide and the amide functional groups, halogenating the phenyl rings, and/or functionalizing the terminal nitrogen with substituted piperazines, resulting in several novel leads such as 11b, which demonstrated high DAT affinity (Ki = 2...
December 8, 2016: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27928893/outsmarted-by-nooptropics-an-investigation-into-the-thermal-degradation-of-modafinil-modafinic-acid-adrafinil-crl-40-940-and-crl-40-941-in-the-gc-injector-formation-of-1-1-2-2-tetraphenylethane-and-its-tetra-fluoro-analogue
#15
Geraldine Dowling, Pierce V Kavanagh, Brian Talbot, John O'Brien, Gary Hessman, Gavin McLaughlin, Brendan Twamley, Simon D Brandt
2-[(Diphenylmethyl)sulfinyl]acetamide (modafinil) is commonly prescribed for the treatment of narcolepsy. Increasing popularity and off-label use as a cognitive enhancer has resulted in a reputation as an intelligence boosting 'wonder drug'. Common alternatives available from online shops and other retail outlets include 2-[(diphenylmethyl)sulfinyl]-N-hydroxyacetamide (adrafinil), 2-{[bis(4-fluorophenyl)methyl]sulfinyl}acetamide (CRL-40,940), 2-{[bis(4-fluorophenyl)methyl]sulfinyl}-N-hydroxyacetamide (CRL-40,941), and N-methyl-4,4-difluoro-modafinil (modafiendz), respectively...
December 8, 2016: Drug Testing and Analysis
https://www.readbyqxmd.com/read/27913001/cancer-related-fatigue-persistent-pervasive-and-problematic
#16
REVIEW
Lynn H Gerber
Cancer-related fatigue (CRF) is commonly reported by patients with cancer before, during, and after treatment. It is a persistent sense of tiredness that interferes with function, is distressing, and requires monitoring and, possibly, treatment. Fatigue assessment requires objective measures and self-reports, such as Functional Assessment of Cancer Therapy-Fatigue. Significant contributors to CRF include anemia, pain, insomnia, depressive symptoms, and elevated BMI. Elevated inflammatory cytokines, diabetes mellitus, cortisol, and cellular dysregulation have been associated with CRF...
February 2017: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/27911338/sleepiness-and-sleep-related-breathing-disorders-in-myotonic-dystrophy-and-responses-to-treatment-a-prospective-cohort-study
#17
Sophie D West, Hanns Lochmüller, Joan Hughes, Antonio Atalaia, Chiara Marini-Bettolo, Simon V Baudouin, Kirstie N Anderson
OBJECTIVE: We conducted prospective assessments in people with myotonic dystrophy type 1 (DM1) with daytime sleepiness, provided targeted therapies and assessed response. METHODS: Patients had overnight sleep assessments. Treatment with continuous positive airway pressure (CPAP) for OSA, non-invasive ventilation (NIV) for respiratory failure, modafinil for excessive daytime sleepiness were commenced. RESULTS: 120 people were studied: mean age 46...
November 29, 2016: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/27872594/modafinil-induces-rapid-onset-behavioral-sensitization-and-cross-sensitization-with-cocaine-in-mice-implications-for-the-addictive-potential-of-modafinil
#18
Raphael Wuo-Silva, Daniela F Fukushiro, André W Hollais, Renan Santos-Baldaia, Elisa Mári-Kawamoto, Laís F Berro, Thaís S Yokoyama, Leonardo B Lopes-Silva, Carolina S Bizerra, Roberta Procópio-Souza, Debora Hashiguchi, Lilian A Figueiredo, Jose L Costa, Roberto Frussa-Filho, Beatriz M Longo
There is substantial controversy about the addictive potential of modafinil, a wake-promoting drug used to treat narcolepsy, proposed as pharmacotherapy for cocaine abuse, and used indiscriminately by healthy individuals due to its positive effects on arousal and cognition. The rapid-onset type of behavioral sensitization (i.e., a type of sensitization that develops within a few hours from the drug priming administration) has been emerged as a valuable tool to study binge-like patterns of drug abuse and the neuroplastic changes that occur quickly after drug administration that ultimately lead to drug abuse...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27865546/french-consensus-management-of-patients-with-hypersomnia-which-strategy
#19
R Lopez, I Arnulf, X Drouot, M Lecendreux, Y Dauvilliers
Central hypersomnias principally involves type 1 narcolepsy (NT1), type 2 narcolepsy (NT2) and idiopathic hypersomnia (IH). Despite great progress made in understanding the physiopathology of NT1 with low cerebrospinal fluid hypocretin-1 levels, current treatment remains symptomatic. The same applies to NT2 and IH, for which the physiopathology is still largely unknown. Controlling excessive daytime sleepiness (EDS), cataplexy, hypnagogic hallucinations, sleep paralysis and disturbed night-time sleep are key therapeutic targets in NT1...
November 16, 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27842553/disharmony-between-wake-and-respiration-promoting-activities-effects-of-modafinil-on-ventilatory-control-in-rodents
#20
Jiro Terada, Isato Fukushi, Kotaro Takeda, Yohei Hasebe, Mieczyslaw Pokorski, Koichiro Tatsumi, Yasumasa Okada
BACKGROUND: Modafinil is a wake-promoting drug and has been widely used for daytime sleepiness in patients with narcolepsy and other sleep disorders. A recent case series reported that daily oral modafinil alleviated hypercapnic respiratory failure in patients with COPD. However, the precise action of modafinil on respiration such as hypercapnic and/or hypoxic ventilatory responses remains unclear. The aim of this study is to clarify the effect of modafinil on the ventilatory control...
November 14, 2016: Respiratory Research
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