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https://www.readbyqxmd.com/read/28439716/antipsychotic-prescribing-to-patients-diagnosed-with-dementia-without-a-diagnosis-of-psychosis-in-the-context-of-national-guidance-and-drug-safety-warnings-longitudinal-study-in-uk-general-practice
#1
S Jill Stocks, Evangelos Kontopantelis, Roger T Webb, Anthony J Avery, Alistair Burns, Darren M Ashcroft
INTRODUCTION: Policy interventions to address inappropriate prescribing of antipsychotic drugs to older people diagnosed with dementia are commonplace. In the UK, warnings were issued by the Medicines Healthcare products Regulatory Agency in 2004, 2009 and 2012 and the National Institute for Health and Care Excellence guidance was published in 2006. It is important to evaluate the impact of such interventions. METHODS: We analysed routinely collected primary-care data from 111,346 patients attending one of 689 general practices contributing to the Clinical Practice Research Datalink to describe the temporal changes in the prescribing of antipsychotic drugs to patients aged 65 years or over diagnosed with dementia without a concomitant psychosis diagnosis from 2001 to 2014 using an interrupted time series and a before-and-after design...
April 24, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28435649/improvement-in-excoriation-skin-picking-with-use-of-risperidone-in-a-patient-with-developmental-disability
#2
Cody Roi, Alessandra Bazzano
Patients with Autism Spectrum Disorder present with a heterogeneous mix of features beyond the core symptoms of the disorder. These features can be emotional, cognitive or behavioral. Behavioral symptoms often include self-injury, and this may take the form of repetitive skin-picking. The prevalence of skin-picking disorder in Autism is unknown. Skin-picking may lead to significant medical and psychosocial complications. Recent data suggest that behavioral interventions may be more effective than medications at reducing skin-picking in neurotypical patients...
March 22, 2017: Pediatric Reports
https://www.readbyqxmd.com/read/28435274/hashimoto-encephalopathy-with-high-plasma-monoamine-metabolite-levels-a-case-report
#3
Sho Horikoshi, Itaru Miura, Yasuto Kunii, Satoko Asano, Keiko Kanno-Nozaki, Hirobumi Mashiko, Hirooki Yabe
Hashimoto encephalopathy (HE) is believed to be an immune-mediated disorder associated with Hashimoto's thyroiditis. It was suggested that neuropsychiatric symptoms, the presence of antithyroid antibody, and good response to steroids were important for the diagnosis of HE. It has been reported that homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylglycol (MHPG), which are monoamine metabolites of dopamine and noradrenaline, respectively, are the possible biomarkers of neuropsychiatric diseases. We report a case of Hashimoto encephalopathy, in which we longitudinally measured the plasma levels of monoamine metabolites...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28421639/cilostazol-adjunctive-therapy-in-treatment-of-negative-symptoms-in-chronic-schizophrenia-randomized-double-blind-placebo-controlled-study
#4
Farzin Rezaei, Bita Mesgarpour, Alireza Jeddian, Atefeh Zeionoddini, Payam Mohammadinejad, Elaheh Salardini, Mona Shahriari, Arefeh Zeinoddini, Shahin Akhondzadeh
OBJECTIVE: To evaluate the efficacy and safety of cilostazol, a selective inhibitor of phosphodiesterase III, as an adjunctive to risperidone in alleviating the negative symptoms of schizophrenia. METHODS: Eighty-four in-patients with diagnosis of chronic schizophrenia participated in a randomized, placebo-controlled trial and underwent 8 weeks of treatment with either cilostazol (50 mg twice a day) or placebo as an adjuvant to risperidone. Participants were assessed using the positive and negative syndrome scale (PANSS) at baseline and at weeks 2, 4, 6, and 8...
April 18, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28419824/effect-of-risperidone-on-serum-homocysteine-levels-in-first-episode-drug-na%C3%A3-ve-patients-with-schizophrenia
#5
Ning Fan, Yunlong Tan, Fude Yang, Li Tian, Song Chen, Jia Li, Zhiren Wang, Xiangyang Zhang
Some studies have shown that homocysteine (Hcy) levels are increased in patients with schizophrenia, and may be involved in its pathophysiology. The purpose of this study was to investigate the effect of the atypical antipsychotic drug risperidone on serum Hcy levels and to explore the relationship between the changes in Hcy levels and the therapeutic outcome, which, to our best knowledge have not been investigated. Fifty-six first-episode and drug-naïve inpatients with schizophrenia were assigned to a 12-week treatment regime with risperidone...
April 15, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28416030/prevalence-neurobiology-and-treatments-for-apathy-in-prodromal-dementia
#6
Chelsea Sherman, Celina S Liu, Nathan Herrmann, Krista L Lanctôt
BACKGROUND: Apathy, characterized by diminished motivation, is a highly prevalent neuropsychiatric symptom in dementia. However, there is a substantial knowledge gap with regard to prevalence rates, neurobiological underpinnings, and effective treatments for apathy in pre-dementia states, including mild cognitive impairment (MCI) and mild behavioral impairment (MBI). METHODS: We conducted a comprehensive literature search using MEDLINE, Embase, and PsycINFO databases to identify available research on apathy in prodromal dementia...
April 18, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28415443/3-month-parenteral-plga-microsphere-formulations-of-risperidone-fabrication-characterization-and-neuropharmacological-assessments
#7
Sundeep Chaurasia, Kuchukuntla Mounika, Vasudha Bakshi, Vure Prasad
The study aims at formulation and characterization of three months parenteral risperidone loaded polymeric microspheres (p-RLPMs) as a sustained delivery system and established their in vitro and in vivo assessments. The p-RLPMs formulations were prepared by solvent extraction and diffusion method. The optimized p-RLPMs (batch RPLGA-1) formulation demonstrated favorable different physicochemical properties such as mean particle size (104±5.34μm), percent porosity (44.56±3.11%) and percent drug loading (38...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28415407/formulation-by-design-based-risperidone-nano-soft-lipid-vesicle-as-a-new-strategy-for-enhanced-transdermal-drug-delivery-in-vitro-characterization-and-in-vivo-appraisal
#8
Syed Sarim Imam, Abdul Ahad, Mohammed Aqil, Mohd Akhtar, Yasmin Sultana, Asgar Ali
The present study was designed to formulate and optimize transdermal risperidone soft lipid vesicles. The formulation optimized with phospholipid, safranal and ethanol were incorporated as permeation and absorption enhancers. The optimized risperidone soft lipid vesicle was further evaluated for skin irritation study, in-vivo pharmacokinetic study and locomotor activity. Three factor three level Box-Behnken design (BBD) was used to statistically optimize soft lipid vesicle using safranal (A), ethanol (B)and phospholipid (C) as independent variable, while their effect was observed for vesicle size (Y1), entrapment efficiency (Y2) and flux (Y3)...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28414178/short-and-long-term-effects-of-risperidone-on-catalepsy-sensitisation-and-acquisition-of-conditioned-avoidance-response-adolescent-vs-adult-rats
#9
Aung Aung Kywe Moe, Gregory A Medely, Timothy Reeks, Thomas H J Burne, Darryl W Eyles
The effects of antipsychotic drugs (APDs) on the adolescent brain are poorly understood despite a dramatic increase in prescription of these drugs in adolescents over the past twenty years. Neuronal systems continue to be remodeled during adolescence. Therefore, when given in adolescence, antipsychotic drugs (APDs) have the potential to affect this remodeling. In this study we investigated the effects of chronic 22-day risperidone treatment (1.3mg/kg/day) in both adolescent and adult rats. We examined short- and long-term changes in behaviour (catalepsy, locomotion and conditioned avoidance response (CAR)), and dopaminergic and serotonergic neurochemistry in the striatum and the nucleus accumbens...
April 13, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28411574/risperidone-versus-olanzapine-in-the-acute-treatment-of-persistent-delusional-disorder-a-retrospective-analysis
#10
Karishma Kulkarni, Rashmi Arasappa, Krishna Prasad M, Amit Zutshi, Prabhat K Chand, Pratima Murthy, Mariamma Philip, Kesavan Muralidharan
There is a dearth of prospective trials studying treatment response in Persistent Delusional Disorder (PDD) to guide clinical practice. Available retrospective data indicate good response to second-generation antipsychotics (SGAs). We selected the data of patients prescribed either olanzapine or risperidone from a retrospective chart review of PDD (n=455) at our centre. We compared the two groups olanzapine (n =86) versus risperidone (n =280) on dose, drug adherence, response and adverse effects. The two groups were comparable on socio-demographic and clinical characteristics of PDD...
April 9, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28411046/different-influence-of-antipsychotics-on-the-balance-between-pro-and-anti-inflammatory-cytokines-depends-on-glia-activation-an-in-vitro-study
#11
Ewa Obuchowicz, Anna M Bielecka-Wajdman, Monika Paul-Samojedny, Marta Nowacka
The microglial hypothesis of schizophrenia suggests that its neuropathology is closely associated with neuroinflammation manifested, inter alia, by an increased expression of cytokines. However, clinical investigations imply that schizophrenia is a heterogeneous disease and in some groups of patients the activated inflammatory process does not contribute to the disease-associated impairment of brain function. Clinical studies revealed also an equivocal impact of antipsychotics on peripheral and CSF cytokines, whereas experimental research performed on the stimulated glia cultures showed their inhibitory effect on pro-inflammatory cytokine levels...
April 11, 2017: Cytokine
https://www.readbyqxmd.com/read/28409660/a-randomized-double-blind-placebo-controlled-trial-on-effectiveness-and-safety-of-celecoxib-adjunctive-therapy-in-adolescents-with-acute-bipolar-mania
#12
Seyed Yaser Mousavi, Rasoul Khezri, Mohammad-Ali Karkhaneh-Yousefi, Payam Mohammadinejad, Faezeh Gholamian, Mohammad Reza Mohammadi, Atefeh Zeinoddini, Shahin Akhondzadeh
OBJECTIVE: Recent studies have focused on the role of inflammatory cascades as one of the possible etiologic factors of bipolar disorder. We hypothesize that celecoxib, through its anti-inflammatory properties, may have a therapeutic role in acute bipolar mania. PATIENTS AND METHODS: Forty-two adolescent inpatients with the diagnosis of acute bipolar mania participated in a parallel, randomized, double-blind controlled trial, and 40 patients underwent an 8-week treatment with either celecoxib (100 mg twice daily) or placebo as an adjunctive treatment to lithium and risperidone...
April 14, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28405955/cutaneous-adverse-reaction-during-lithium-treatment-a-case-report-and-updated-systematic-review-with-meta-analysis
#13
Martina Pinna, Mirko Manchia, Sergio Puddu, Giampaolo Minnai, Leonardo Tondo, Piergiorgio Salis
OBJECTIVES: To present a new case of adverse cutaneous reaction during lithium treatment and to update the systematic review and meta-analysis of the incidence of this adverse reaction. METHODS: We conducted a systematic search (performed in September 2016) for peer-reviewed articles in English indexed in Medline (2011-present). Meta-analytical estimates were obtained using the "Metafor" package. CASE PRESENTATION: Ms. H., a 31-year-old Caucasian woman with BD1, was admitted to the inpatient unit for a full-blown psychotic episode and treated with carbamazepine 400 mg q...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28405133/risperidone-induced-adverse-drug-reactions-and-role-of-drd2-141-c-ins-del-and-5htr2c-759-c-t-genetic-polymorphisms-in-patients-with-schizophrenia
#14
Charanraj Goud Alladi, Anbarasan Mohan, Deepak Gopal Shewade, Ravi Philip Rajkumar, Surendiran Adithan, Karthick Subramanian
OBJECTIVE: To determine the adverse drug reaction (ADR) profile of risperidone and their association with dopamine (DRD2 - 141 C Ins/Del/rs1799732) and serotonin receptor (5HTR2C -759 C>T/rs3813929) gene polymorphisms in patients with schizophrenia. MATERIALS AND METHODS: The study was conducted among 289 patients who were diagnosed with schizophrenia and were on treatment with risperidone (4-8 mg/day)-based therapy for a minimum of 4 weeks. Genotyping was carried by real-time quantitative polymerase chain reaction...
January 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/28395245/validation-of-a-dried-blood-spot-method-for-therapeutic-drug-monitoring-of-citalopram-mirtazapine-and-risperidone-and-its-active-metabolite-9-hydroxyrisperidone-using-hplc-ms
#15
Johanna Weber, Stefanie Oberfeld, Andrea Bonse, Klaus Telger, Rainer Lingg, Georg Hempel
Citalopram, mirtazapine and risperidone are frequently prescribed for psychiatric illnesses such as depression and psychosis or for aggressive behavior in elderly patients with dementia. The plasma concentrations vary greatly between patients, especially in elderly patients. Thus, therapeutic drug monitoring (TDM) increases the safety of antipsychotic treatment and a more rapid response to treatment may be achieved. To facilitate TDM, the objectives of this study were to develop and validate a reliable dried blood spot method to simultaneously quantify citalopram, mirtazapine and risperidone including its active metabolite 9-hydroxyrisperidone...
June 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28393979/-ictal-catatonia-presentation-as-a-non-convulsive-status-epilepticus-a-case-report
#16
Germán Gaete, Álvaro Velásquez
The differential diagnosis of non-convulsive status epilepticus (NCSE) is often complex due to a wide clinical variability of its presentation, including psychiatric manifestations. We report a 68 years old male with a history of depression treated with venlafaxine, mirtazapine, quetiapine and risperidone, presenting in the emergency room with confusion and generalized rigidity. A brain CT scan did not show lesions. A neuroleptic syndrome was initially suspected. At the third day the obtundation worsened and an electroencephalogram (EEG) was performed, which showed epileptiform abnormalities...
January 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28392414/micro-flow-imaging-as-a-quantitative-tool-to-assess-size-and-agglomeration-of-plga-microparticles
#17
Miranda M C van Beers, Cees Slooten, Jelte Meulenaar, Ahmad S Sediq, Ruud Verrijk, Wim Jiskoot
The purpose of this study was to explore the potential of flow imaging microscopy to measure particle size and agglomeration of poly(D,L-lactic-co-glycolic acid) (PLGA) microparticles. The particle size distribution of pharmaceutical PLGA microparticle products is routinely determined with laser diffraction. In our study, we performed a unique side-by-side comparison between MFI 5100 (flow imaging microscopy) and Mastersizer 2000 (laser diffraction) for the particle size analysis of two commercial PLGA microparticle products, i...
April 6, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28389998/psychotropic-drug-related-fall-incidents-in-nursing-home-residents-living-in-the-eastern-part-of-the-netherlands
#18
Sarah I M Janus, Gezinus H Reinders, Jeannette G van Manen, Sytse U Zuidema, Maarten J IJzerman
BACKGROUND: Older people are more susceptible to falls than younger people. Therefore, as the Dutch population ages, the total number of falls and costs associated with them will rise. The use of psychotropic drugs is associated with an increased risk of falling. To create tailored fall-prevention programmes, information on the magnitude of the association between fall incidents and specific psychotropic drugs or drug classes is needed. OBJECTIVE: The goal of this study was to delineate the associations between fall incidents and specific psychotropic drugs or drug classes...
April 8, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28389859/a-method-to-slow-down-the-ionization-dependent-release-of-risperidone-loaded-in-a-thermoresponsive-poly-n-acryloyl-glycinamide-hydrogel
#19
Mahfoud Boustta, Michel Vert
Poly(N-acryloyl glycinamide) polymers are soluble in hot aqueous media that gel rapidly on cooling. This gelatin-like behavior was previously compared with drug delivery requirements. Slow releases were demonstrated in vitro using different model molecules and macromolecules and in vivo using methylene blue. Risperidone is a weak basic drug sparingly soluble in water frequently used to treat patients suffering of schizophrenia. A standard risperidone-poly(N-acryloyl glycinamide) hydrogel formulation was selected from which the drug was allowed to release comparatively in buffered and non-buffered isotonic media at 37 °C under pseudo sink conditions...
April 7, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28389049/intuitive-pharmacogenetic-dosing-of-risperidone-according-to-cyp2d6-phenotype-extrapolated-from-genotype-in-a-cohort-of-first-episode-psychosis-patients
#20
Sergi Mas, Patricia Gassó, Mercé Torra, Miquel Bioque, Antonio Lobo, Ana González-Pinto, Maria Soledad Olmeda, Iluminada Corripio, Eduard Vieta, Josefina Castro-Fornieles, Roberto Rodriguez-Jimenez, Julio Bobes, Judith Usall, Adrián Llerena, Jerónimo Saiz-Ruiz, Miguel Bernardo, Amalia Lafuente, PEPs Group
Risperidone (R) is the most prescribed antipsychotic drug for patients with a first episode of psychosis (FEP). In a naturalistic cohort of chronic psychiatric inpatients, we demonstrated that clinicians adjust R dosage by CYP2D6 activity, despite being blinded to the genotype, which we described as an "intuitive pharmacogenetic" process. The aim of the present study is to replicate our previous findings of intuitive pharmacogenetic in a cohort of FEP patients using CYP2D6 phenotype extrapolated from genotypes...
April 4, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
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