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First generation antipsychotics

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https://www.readbyqxmd.com/read/29748629/abnormal-reward-prediction-error-signalling-in-antipsychotic-naive-individuals-with-first-episode-psychosis-or-clinical-risk-for-psychosis
#1
Anna O Ermakova, Franziska Knolle, Azucena Justicia, Edward T Bullmore, Peter B Jones, Trevor W Robbins, Paul C Fletcher, Graham K Murray
Ongoing research suggests preliminary, though not entirely consistent, evidence of neural abnormalities in signalling prediction errors in schizophrenia. Supporting theories suggest mechanistic links between the disruption of these processes and the generation of psychotic symptoms. However, it is unknown at what stage in the pathogenesis of psychosis these impairments in prediction-error signalling develop. One major confound in prior studies is the use of medicated patients with strongly varying disease durations...
April 5, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29742478/autoimmune-phenotypes-in-schizophrenia-reveal-novel-treatment-targets
#2
REVIEW
Emily G Severance, Faith B Dickerson, Robert H Yolken
Typical and atypical antipsychotics are the first-line treatments for schizophrenia, but these classes of drugs are not universally effective, and they can have serious side effects that impact compliance. Antipsychotic drugs generally target the dopamine pathways with some variation. As research of schizophrenia pathophysiology has shifted away from a strictly dopamine-centric focus, the development of new pharmacotherapies has waned. A field of inquiry with centuries-old roots is gaining traction in psychiatric research circles and may represent a new frontier for drug discovery in schizophrenia...
May 6, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29739138/successful-treatment-with-olanzapine-of-psychosis-in-dentatorubral-pallidoluysian-atrophy-a-case-report
#3
Zui Narita, Tomiki Sumiyoshi
Patients with dentatorubral-pallidoluysian atrophy occasionally elicit psychosis. So far, one study reported first generation antipsychotics drugs may provide an effective treatment; however, there is no literature on the benefits of second generation antipsychotics. We report on a 44-year-old man with dentatorubral-pallidoluysian atrophy whose psychotic symptoms were effectively treated with olanzapine. Our observation suggests some second generation antipsychotics provide a therapeutic option for ameliorating psychosis in dentatorubral-pallidoluysian atrophy...
May 31, 2018: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29735155/abnormal-trajectory-of-intracortical-myelination-in-schizophrenia-implicates-white-matter-in-disease-pathophysiology-and-the-therapeutic-mechanism-of-action-of-antipsychotics
#4
Todd A Tishler, George Bartzokis, Po H Lu, Erika P Raven, Mher Khanoyan, Chandra J Kirkpatrick, Meghan H Pyle, J Pablo Villablanca, Lori L Altshuler, Jim Mintz, Joseph Ventura, Laurie R Casaus, Kenneth L Subotnik, Keith H Nuechterlein, Benjamin M Ellingson
BACKGROUND: Postmortem and imaging studies provide converging evidence that the frontal lobe myelination trajectory is dysregulated in schizophrenia (SZ) and suggest that early in treatment, antipsychotic medications increase intracortical myelin (ICM). We used magnetic resonance imaging to examine whether the ICM trajectory in SZ is dysregulated and altered by antipsychotic treatment. METHODS: We examined 93 subjects with SZ (64 men and 29 women) taking second-generation oral antipsychotics with medication exposures of 0-333 months in conjunction with 80 healthy control subjects (52 men and 28 women)...
May 2018: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29734130/baseline-results-from-the-european-non-interventional-antipsychotic-long-acting-injection-in-schizophrenia-alto-study
#5
Pierre-Michel Llorca, Julio Bobes, W Wolfgang Fleischhacker, Stephan Heres, Nicholas Moore, Nawal Bent-Ennakhil, Christophe Sapin, Jean-Yves Loze, Anna-Greta Nylander, Maxine X Patel
BACKGROUND: The Antipsychotic Long-acTing injection in schizOphrenia (ALTO) study was a non-interventional study across several European countries examining prescription of long-acting injectable (LAI) antipsychotics to identify sociodemographic and clinical characteristics of patients receiving and physicians prescribing LAIs. ALTO was also the first large-scale study in Europe to report on the use of both first- or second-generation antipsychotic (FGA- or SGA-) LAIs. METHODS: Patients with schizophrenia receiving a FGA- or SGA-LAI were enrolled between June 2013 and July 2014 and categorized as incident or prevalent users...
May 4, 2018: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/29720183/disrupted-sphingolipid-metabolism-following-acute-clozapine-and-olanzapine-administration
#6
Katrina Weston-Green, Ilijana Babic, Michael de Santis, Bo Pan, Magdalene K Montgomery, Todd Mitchell, Xu-Feng Huang, Jessica Nealon
BACKGROUND: Second generation antipsychotics (SGAs) induce glucometabolic side-effects, such as hyperglycemia and insulin resistance, which pose a therapeutic challenge for mental illness. Sphingolipids play a role in glycaemic balance and insulin resistance. Endoplasmic reticulum (ER) stress contributes to impaired insulin signalling and whole-body glucose intolerance. Diabetogenic SGA effects on ER stress and sphingolipids, such as ceramide and sphingomyelin, in peripheral metabolic tissues are unknown...
May 2, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29710118/disorganized-gyrification-network-properties-during-the-transition-to-psychosis
#7
Tushar Das, Stefan Borgwardt, Daniel J Hauke, Fabienne Harrisberger, Undine E Lang, Anita Riecher-Rössler, Lena Palaniyappan, André Schmidt
Importance: There is urgent need to improve the limited prognostic accuracy of clinical instruments to predict psychosis onset in individuals at clinical high risk (CHR) for psychosis. As yet, no reliable biological marker has been established to delineate CHR individuals who will develop psychosis from those who will not. Objectives: To investigate abnormalities in a graph-based gyrification connectome in the early stages of psychosis and to test the accuracy of this systems-based approach to predict a transition to psychosis among CHR individuals...
April 25, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29688914/antipsychotic-drug-exposure-and-risk-of-fracture-a-systematic-review-and-meta-analysis-of-observational-studies
#8
Davide Papola, Giovanni Ostuzzi, Lehana Thabane, Gordon Guyatt, Corrado Barbui
To investigate the extent to which exposure to first-generation and second-generation antipsychotics (APs) is associated with an increased risk of fractures, with a particular focus on hip fractures, and to ascertain the risk associated with exposure to individual drugs. We included observational studies that reported data on fractures in individuals exposed to APs compared with unexposed individuals or individuals with previous exposure. We extracted information on study design, source of data, population characteristics, outcomes of interest, matching and confounding factors, and used a modified version of the Newcastle-Ottawa Scale to judge study risk of bias...
April 23, 2018: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29671217/cyproheptadine-regulates-pyramidal-neuron-excitability-in-mouse-medial-prefrontal-cortex
#9
Yan-Lin He, Kai Wang, Qian-Ru Zhao, Yan-Ai Mei
Cyproheptadine (CPH), a first-generation antihistamine, enhances the delayed rectifier outward K+ current (IK ) in mouse cortical neurons through a sigma-1 receptor-mediated protein kinase A pathway. In this study, we aimed to determine the effects of CPH on neuronal excitability in current-clamped pyramidal neurons in mouse medial prefrontal cortex slices. CPH (10 µmol/L) significantly reduced the current density required to generate action potentials (APs) and increased the instantaneous frequency evoked by a depolarizing current...
April 18, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29667798/delusional-infestation-in-psychodermatology
#10
Monica Rosales Santillan, Dustin L Taylor, Jason S Reichenberg
Delusional infestation (DI), also known as delusional parasitosis, consists of a patient's strong belief that he or she is infested with a nonliving substance or living organism despite lack of medical evidence to support this belief. The most commonly reported sources of infestation include insects, fibrous strands, worms, and scabies. DI is predominantly seen in women and older patients. This disorder has a variable course and prognosis in patients. DI can be a primary psychiatric problem, or secondary to underlying medical conditions or other psychiatric disorders...
August 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29664808/trends-in-pharmacological-emergency-treatment-of-patients-suffering-from-schizophrenia-over-a-16-year-observation-period
#11
Monika Edlinger, Anna-Sophia Welte, Nursen Yalcin-Siedentopf, Georg Kemmler, Felix Neymeyer, W Wolfgang Fleischhacker, Alex Hofer
Patients suffering from schizophrenia are often treated in locked psychiatric units because of psychomotor agitation, hostility and aggressive behavior, or suicidality. Because of legal conditions, investigations on these acutely ill patients are difficult, and many studies do not represent 'real-life psychiatry'. This retrospective survey was conducted at the Department of Psychiatry, Psychotherapy and Psychosomatics of the Medical University, Innsbruck, Austria. Data were collected from the records of all adult inpatients suffering from a schizophrenia spectrum disorder according to the International Classification of Diseases, 10th ed...
April 16, 2018: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29623634/a-review-of-clinical-and-economic-evaluations-applied-to-psychotropic-therapies-used-in-the-treatment-of-schizophrenia-in-argentina
#12
REVIEW
Gisela Paula González, Nebel Silvana Moscoso, Fernando Pablo Lago
Schizophrenia is considered a serious mental disorder that affects over 21 million people worldwide, and is associated with disability that frequently affects the patient's educational and working performance. In Argentina, two of the most widely used antipsychotics in the treatment of this disorder are haloperidol and risperidone. Both are provided free to patients without health coverage in public healthcare facilities. In this paper we seek to review the clinical and economic benefits of prescribing psychotropic therapies based on haloperidol (a first-generation antipsychotic that is part of the butyrophenone group of drugs) versus risperidone [an atypical or second-generation antipsychotic (neuroleptic) drug] in adult patients who have been diagnosed with schizophrenia...
October 23, 2017: PharmacoEconomics Open
https://www.readbyqxmd.com/read/29606074/use-of-security-officers-on-inpatient-psychiatry-units
#13
Ryan E Lawrence, Maria M Perez-Coste, Stan D Arkow, Paul S Appelbaum, Lisa B Dixon
OBJECTIVE: Violent and aggressive behaviors are common among psychiatric inpatients. Hospital security officers are sometimes used to address such behaviors. Research on the role of security in inpatient units is scant. This study examined when security is utilized and what happens when officers arrive. METHODS: The authors reviewed the security logbook and the medical records for all patients discharged from an inpatient psychiatry unit over a six-month period...
April 2, 2018: Psychiatric Services: a Journal of the American Psychiatric Association
https://www.readbyqxmd.com/read/29601407/effect-of-valproate-and-antidepressant-drugs-on-clozapine-metabolism-in-patients-with-psychotic-mood-disorders
#14
Donatella Marazziti, Lionella Palego, Laura Betti, Gino Giannaccini, Enrico Massimetti, Stefano Baroni, Antonio Ciapparelli, Antonio Lucacchini, Federico Mucci, Liliana Dell'Osso
BACKGROUND: The aim of the present study was to appraise retrospectively the influence of valproate (VPA) and antidepressants (ADs) on the steady-state plasma concentrations of clozapine (CLZ), the prototype of various second-generation antipsychotics (SGAs), norclozapine (NCLZ, its main metabolite), and their ratio (NCLZ/CLZ). METHODS: Sixty-seven psychotic patients with a prevalent diagnosis of bipolar disorder (BD) were studied. We then analyzed data altogether and subdivided them into four groups, according to pharmacological treatments: #1 CLZ (n=21), #2 CLZ plus antidepressants (ADs) (n=13), #3 CLZ plus VPA (n=16), and #4 CLZ plus ADs plus VPA (n=17)...
March 29, 2018: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29589223/an-analysis-of-the-inclusion-of-medications-considered-potentially-inappropriate-in-older-adults-in-chemotherapy-templates-for-hematologic-malignancies-one-recommendation-for-all
#15
Amy Zhou, Holly M Holmes, Arti Hurria, Tanya M Wildes
BACKGROUND: There remains a paucity of data regarding the use of potentially inappropriate medications (PIMs) in the supportive management of older adults undergoing chemotherapy. Raising awareness among healthcare providers regarding the frequency of their use and potential toxicities may help to minimize the risks to patients. OBJECTIVE: The aim of this study was to evaluate the frequency of six specific classes of medications considered PIMs by the American Geriatrics Society Beers Criteria that are commonly included in the National Comprehensive Cancer Network (NCCN) chemotherapy order templates for hematologic malignancies...
March 27, 2018: Drugs & Aging
https://www.readbyqxmd.com/read/29588595/the-impact-of-a-combined-intervention-program-an-educational-and-clinical-pharmacist-s-intervention-to-improve-prescribing-pattern-in-hospitalized-geriatric-patients-at-king-abdulaziz-medical-city-in-riyadh-saudi-arabia
#16
Muath Fahmi Najjar, Syed Azhar Syed Sulaiman, Majed Al Jeraisy, Hashim Balubaid
Background: There is a difference between evidence-based guidelines for geriatric patients and clinical practice of physicians. Prescribing potentially inappropriate medications (PIMs) can be attributed to the fact that many physicians are not aware of PIMs usage. Aim: The aim of this study was to assess the effectiveness of a combined intervention program comprising an educational and clinical pharmacist intervention to reduce the incidence of PIMs among hospitalized geriatric patients...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29575323/clozapine-reduces-nicotine-self-administration-blunts-reinstatement-of-nicotine-seeking-but-increases-responding-for-food
#17
Andrew R Abela, Zhaoxia Li, Anh D Lê, Paul J Fletcher
People with schizophrenia display significantly higher rates of smoking than the general population, which may be due to an interaction between nicotine and antipsychotic medication. While the conventional antipsychotic drug haloperidol sometimes increases cigarette smoking in patients with schizophrenia, there is some evidence suggesting that clozapine, an atypical antipsychotic drug, may reduce nicotine use in these patients. However, the effects of antipsychotic drugs like clozapine on aspects of nicotine self-administration and reinstatement have not been systematically examined...
March 25, 2018: Addiction Biology
https://www.readbyqxmd.com/read/29570969/tardive-dyskinesia-recognition-patient-assessment-and-differential-diagnosis
#18
Rakesh Jain, Christoph U Correll
Tardive dyskinesia (TD) is an involuntary movement disorder associated with antipsychotic treatment. Because of the serious and potentially irreversible nature of TD, accurate diagnosis is crucial. However, diagnosing TD can be challenging, since the subtle and often fluctuating symptoms can be easily mistaken for symptoms of mental illness or other side effects. Although the risk of developing TD in relation to treatment with second-generation antipsychotics is lower than that associated with first-generation antipsychotics, the risk still exists and may be greater than once believed...
March 20, 2018: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29569082/long-acting-injectable-second-generation-antipsychotics-an-update-and-comparison-between-agents
#19
REVIEW
Michael W Jann, Scott R Penzak
Schizophrenia is a chronic medical condition with periods of remission and relapses over a patient's lifetime. Antipsychotic medications represent the mainstay of treatment for this disease. Long-acting injectable (LAI) formulations of antipsychotics are an attractive alternative to their oral counterparts, as they enhance patient adherence. A number of second-generation antipsychotics (SGAs) are available in LAI formulations. These include paliperidone, aripiprazole, olanzapine, and risperidone. This article reviews the most recently developed and approved of these formulations-aripiprazole monohydrate, aripiprazole lauroxil, and paliperidone palmitate...
March 22, 2018: CNS Drugs
https://www.readbyqxmd.com/read/29568276/effects-of-continuing-oral-risperidone-vs-switching-from-risperidone-to-risperidone-long-acting-injection-on-cognitive-function-in-stable-schizophrenia-patients-a-pilot-study
#20
Hikaru Hori, Asuka Katsuki, Kiyokazu Atake, Reiji Yoshimura
Objectives: Risperidone is the first new generation antipsychotic drug to become available as a long-acting injection (LAI). The purpose of this study was to evaluate the effects of switching from oral risperidone to risperidone LAI (RLAI) on cognitive function in stable schizophrenia patients compared with the effects of continuing oral risperidone. Methods: Sixteen stable patients who had received risperidone monotherapy for at least 3 months were enrolled (the RLAI group)...
2018: Frontiers in Psychiatry
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