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https://www.readbyqxmd.com/read/29684390/lack-of-dopamine-supersensitivity-in-rats-after-chronic-administration-of-blonanserin-comparison-with-haloperidol
#1
Takashi Hashimoto, Satoko Baba, Hiroko Ikeda, Yasunori Oda, Kenji Hashimoto, Isao Shimizu
Long-term treatment with antipsychotic drugs in patients with schizophrenia can lead to dopamine supersensitivity psychosis. It is reported that repeated administration of haloperidol caused dopamine supersensitivity in rats. Blonanserin is an atypical antipsychotic drug with high affinity for dopamine D2 , D3 and serotonin2A receptors. In this study, we investigated whether chronic administration of blonanserin leads to dopamine supersensitivity. Following oral treatment with blonanserin (0.78mg/kg) or haloperidol (1...
April 20, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29674240/the-impact-of-antipsychotics-as-a-risk-factor-for-thromboembolism
#2
REVIEW
Ewa A Ogłodek, Marek J Just, Anna D Grzesińska, Aleksander Araszkiewicz, Adam R Szromek
Patients with schizophrenia are predisposed toward developing cardiovascular disease. Although neuroleptics affect the cardiovascular system, it is also important to consider the consequences of the disease itself such as lower physical activity due to living on disability pension, inadequate nutrition, and/or nicotine addiction, being more common among patients with schizophrenia versus the general population. All these factors combined lead to an increased risk of death caused by cardiovascular conditions in schizophrenic patients...
December 15, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29670407/first-episode-psychosis-as-the-initial-presentation-of-multiple-sclerosis-a-case-report
#3
Athena Enderami, Rose Fouladi, Seyed Hamzeh Hosseini
Background: Multiple sclerosis (MS) is an inflammatory disease that affects the central nervous system (CNS). MS with episode of psychosis is a rare entity, and to the best of our knowledge, no case has been reported from Iran till date. Case presentation: We report a case of MS with first-episode psychosis in a 27-year-old single man with no history of psychiatric disorder or drug abuse. The patient developed neurological symptoms after 3 months and was finally diagnosed as a case of MS...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29574303/prevalence-and-correlates-of-antipsychotic-polypharmacy-in-hong-kong
#4
Stephanie Lock Man Lung, Ho Ming Edwin Lee, Yu Hai Eric Chen, Kit Wa Sherry Chan, Wing Chung Chang, Lai Ming Christy Hui
BACKGROUND: Antipsychotic polypharmacy (APP) remains a common practice despite inconclusive empirical evidence of additional efficacy and potential exacerbation of side effects. Previous studies suggest APP rate is notably high in East Asia. This paper aims to investigate the prevalence and correlates of APP in Hong Kong. METHOD: This was a cross-sectional study of 728 patients with psychosis. The demographics and clinical information, including age, gender, diagnosis, hospitalization history, and medication were collected...
March 10, 2018: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29559781/novel-treatment-options-in-depression-and-psychosis
#5
REVIEW
Eva Ceskova, Petr Silhan
In spite of tremendous development in central nervous system research, current treatment is suboptimal, especially in severe mental disorders. In medicine, there are two main methods of improving the health care provided: seeking new treatment procedures and perfecting (optimizing) the existing ones. Optimization of treatment includes not only practical tools such as therapeutic drug monitoring but also implementation of general trends in the clinical practice. New pharmacological options include new more sophisticated forms of monoaminergic drugs, old drugs rediscovered on the base of a better understanding of pathophysiology of mental illnesses, and drugs aimed at new treatment targets...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29555252/the-role-of-striatum-and-prefrontal-cortex-in-the-prevention-of-amphetamine-induced-schizophrenia-like-effects-mediated-by-nitric-oxide-compounds
#6
Ana Carolina Issy, Maurício Dos-Santos-Pereira, João Francisco Cordeiro Pedrazzi, Regina Celia Cussa Kubrusly, Elaine Del-Bel
Pharmacological manipulation of nitric oxide (NO) has been suggested as a promising treatment for schizophrenia symptoms. A single infusion of sodium nitroprusside, a NO donor with short half-life, was found to improve schizophrenia symptoms. However, an increasing number of preclinical studies have demonstrated the potential beneficial effects of both NO donors and inhibitors. We investigated the potential synergistic effect of sub-effective doses of the NO donor sodium nitroprusside or the NO inhibitor 7-Nitroindazole (7NI) combined with clozapine, a standard atypical antipsychotic, on counteracting amphetamine or MK-801-induced psychosis-like behaviors...
March 16, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29494437/autoimmune-encephalitis-with-multiple-autoantibodies-a-diagnostic-and-therapeutic-challenge
#7
Albert E Kim, Peter Kang, Robert C Bucelli, Cole J Ferguson, Robert E Schmidt, Arun S Varadhachary, Gregory S Day
INTRODUCTION: Indications for autoantibody testing in patients with rapid-onset cognitive impairment have expanded in step with the growing number of disease-associated autoantibodies and clinical syndromes. Although increased access to autoantibody testing has broadened our understanding of the spectrum of autoimmune encephalitis (AE), it has also produced new challenges associated with deciphering the contributions of disease-associated autoantibodies in patients with atypical clinical features and/or multiple autoantibodies...
March 2018: Neurologist
https://www.readbyqxmd.com/read/29474698/antibodies-in-the-diagnosis-prognosis-and-prediction-of-psychotic-disorders
#8
Thomas A Pollak, Jonathan P Rogers, Robert G Nagele, Mark Peakman, James M Stone, Anthony S David, Philip McGuire
Blood-based biomarker discovery for psychotic disorders has yet to impact upon routine clinical practice. In physical disorders antibodies have established roles as diagnostic, prognostic and predictive (theranostic) biomarkers, particularly in disorders thought to have a substantial autoimmune or infective aetiology. Two approaches to antibody biomarker identification are distinguished: a "top-down" approach, in which antibodies to specific antigens are sought based on the known function of the antigen and its putative role in the disorder, and emerging "bottom-up" or "omics" approaches that are agnostic as to the significance of any one antigen, using high-throughput arrays to identify distinctive components of the antibody repertoire...
February 21, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29457916/systematic-review-of-psychiatric-signs-in-niemann-pick-disease-type-c
#9
Olivier Bonnot, Hans-Hermann Klünemann, Christian Velten, Juan Vicente Torres Martin, Mark Walterfang
OBJECTIVES: We conducted the first systematic literature review and analysis of psychiatric manifestations in Niemann-Pick disease type C (NPC) to describe: 1) time of occurrence of psychiatric manifestations relative to other disease manifestations; 2) frequent combinations of psychiatric, neurological and visceral disease manifestations. METHODS: A systematic EMBase literature search was conducted to identify, collate and analyze published data from patients with NPC associated with psychiatric symptoms, published between January 1967 and November 2015...
February 19, 2018: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/29433523/a-clinical-approach-to-new-onset-psychosis-associated-with-immune-dysregulation-the-concept-of-autoimmune-psychosis
#10
Souhel Najjar, Johann Steiner, Amanda Najjar, Karl Bechter
Growing data point to the overlap between psychosis and pathological processes associated with immunological dysregulation as well as inflammation. Notably, the recent discovery of antibodies against synaptic and neuronal cell membrane proteins such as anti-N-methyl-D-aspartate receptor provides more direct evidence of the etiological connection between autoimmunity and subsequent hazard of psychosis. Here, we advocate the use of term "autoimmune psychosis," as this term suggests that autoimmune disorders can masquerade as drug-resistant primary psychosis, and this subtype of psychosis has anatomical and immunological footprints in the brain, despite the frequent absence of structural abnormalities on conventional brain MRI...
February 13, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29431277/mecp2-at-hook1-mutations-in-patients-with-intellectual-disability-and-or-schizophrenia-disrupt-dna-binding-and-chromatin-compaction-in-vitro
#11
Taimoor I Sheikh, Ricardo Harripaul, Muhammad Ayub, John B Vincent
Mutations in the Methyl-CpG-binding protein-2 gene (MECP2) are commonly associated with Rett syndrome. However, it has long been appreciated that there exists a spectrum of neuropsychiatric phenotypes associated with MECP2 variants. The most frequent Rett missense mutations are located in either the methyl-CpG-binding domain (MBD) or transcription repression domain (TRD). Clinical roles for mutations in other domains such as the intervening domain (ID) or AT-Hook domains have yet to be determined. Here, we report functional analysis of MECP2 missense mutations, located in AT-Hook1 within the ID, in a large Pakistani family with childhood onset cognitive decline and schizophrenia, de novo in a girl with atypical Rett syndrome, and de novo in a woman with schizophrenia...
February 12, 2018: Human Mutation
https://www.readbyqxmd.com/read/29431144/paradigm-shift-purity-progress-and-the-origins-of-first-episode-psychosis
#12
Suze G Berkhout
First-episode psychosis has garnered significant attention and resources within mental health services in North America, Europe and Australia/New Zealand since the 1990s. Despite this widespread embrace, little scholarship exists that examines underlying concepts, ideologies and imagery embedded within the early intervention paradigm. In this paper, I offer a sociohistorical analysis of the emergence of first-episode psychosis and early intervention as entities in psychiatry, drawing on contemporary philosophical thought to explore various concepts embedded in them...
February 3, 2018: Medical Humanities
https://www.readbyqxmd.com/read/29403138/amisulpride-reexposure-and-tardive-dyskinesia
#13
Ajeet Sidana
To highlight the association between amisulpride and onset of tardive dyskinesia (TD) in patient suffering with psychosis not otherwise specified (NOS), who has already been treated with amisulpride for many years. A 40-year-old female suffering with psychosis NOS since 19 years presented with recurrence of positive symptoms in the form of delusion of persecution, ideas of grandiosity since last 3 months. She was treated with amisulpride up to 400 mg/day and developed involuntary oro-buccal-lingual movement within 2 months of amisulpride therapy...
January 2018: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/29385604/mri-indices-of-cortical-development-in-young-people-with-psychotic-experiences-influence-of-genetic-risk-and-persistence-of-symptoms
#14
Leon Fonville, Mark Drakesmith, Stanley Zammit, Glyn Lewis, Derek K Jones, Anthony S David
Background: Psychotic experiences (PEs) are considered part of an extended psychosis phenotype and are associated with an elevated risk of developing a psychotic disorder. Risk of transition increases with persistence of PEs, and this is thought to be modulated by genetic and environmental factors. However, it is unclear if persistence is associated with progressive schizophrenia-like changes in neuroanatomy. Methods: We examined cortical morphometry using MRI in 247 young adults, from a population-based cohort, assessed for the presence of PEs at ages 18 and 20...
January 29, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29381388/long-acting-injectable-atypical-antipsychotic-use-in-adolescents-an-observational-study
#15
Adriana Fortea, Daniel Ilzarbe, Laura Espinosa, Mireia Solerdelcoll, Clara de Castro, Giovanni Oriolo, Gisela Sugranyes, Inmaculada Baeza
OBJECTIVES: Although second generation long-acting injectable antipsychotics (SG-LAIAs) have been approved and are widely used in adults, there is limited evidence for the use of long-acting formulations in children and adolescents. Thus, we systematically describe the off-label use of SG-LAIAs in clinical practice in adolescent inpatients. METHODS: All individuals admitted to our Children and Adolescent Inpatient Psychiatry Unit receiving treatment with SG-LAIAs between January 2013 and June 2016 were reviewed...
January 30, 2018: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/29299155/neuroprotection-by-aripiprazole-against-%C3%AE-amyloid-induced-toxicity-by-p-ck2%C3%AE-activation-via-inhibition-of-gsk-3%C3%AE
#16
So Youn Park, Hwa Kyoung Shin, Won Suk Lee, Sun Sik Bae, Koanhoi Kim, Ki Whan Hong, Chi Dae Kim
Psychosis is reported over 30% of patients with Alzheimer's disease (AD) in clinics. Aripiprazole is an atypical antipsychotic drug with partial agonist activity at the D2 dopamine and 5-HT1A receptors with low side-effect profile. We identified aripiprazole is able to overcome the amyloid-β (Aβ)-evoked neurotoxicity and then increase the cell viability. This study elucidated the mechanism(s) by which aripiprazole ameliorates Aβ1-42-induced decreased neurite outgrowth and viability in neuronal cells. Pretreatment with aripiprazole increased Brain-derived neurotrophic factor (BDNF) mRNA and protein expressions in N2a cells...
December 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/29280817/newly-diagnosed-systemic-lupus-erythematosus-atypical-presentation-with-focal-seizures-and-long-standing-lymphadenopathy
#17
Eric S Mull, Vivian Aranez, Drew Pierce, Ilene L Rothman, Rabheh Abdul-Aziz
BACKGROUND: Systemic lupus erythematosus (SLE) may present with involvement of multiple organ systems, usually with a constellation of nonspecific constitutional symptoms and signs. Seizures and thrombosis are uncommon at presentation. CASE PRESENTATION: We present the case of a 17-year-old boy of African descent with an 11-year history of persistent lymphadenopathy with negative outpatient workup for lymphoma and immunodeficiency who was admitted to our tertiary care hospital for new-onset seizure activity...
December 27, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29185542/pimavanserin-a-novel-therapeutic-option-for-parkinson-disease-psychosis
#18
REVIEW
Trevor Hawkins, Brian D Berman
Purpose of review: In April 2016, the Food and Drug Administration (FDA) approved a first-in-class atypical antipsychotic medication called pimavanserin for the treatment of Parkinson disease psychosis (PDP). We aim to inform readers about its indications, effectiveness, and safety profile. Recent findings: Pimavanserin acts as an inverse agonist at serotonin 5-HT2A receptors and has negligible effects on other receptors, thereby avoiding the D2 receptor antagonism that can potentially worsen motor symptoms...
April 2017: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/29175874/psychiatric-disease-in-an-adolescent-as-a-harbinger-of-cerebral-x-linked-adrenoleukodystrophy
#19
Jessica Smith, Mitchel T Williams, Vinod K Misra
X-linked adrenoleukodystrophy (XALD) typically presents as a childhood cerebral demyelinating form, as an adult-onset adrenomyeloneuropathy or as adrenocortical insufficiency. Cerebral demyelination presenting in adolescence is unusual. We present an 17-year-old boy with adolescent-onset XALD initially manifesting with slowly progressive psychiatric symptoms. He was initially diagnosed with attention-deficit hyperactivity disorder and an acute psychosis. However, he was ultimately diagnosed with XALD based on his clinical course, neuroimaging findings and biochemical abnormalities...
November 24, 2017: Practical Neurology
https://www.readbyqxmd.com/read/29106793/body-mass-index-and-plasma-leptin-in-psychiatric-suicide-attempters
#20
Athanasia Papadopoulou, Athanasios Douzenis, Christos Christodoulou, Rossetos Gournellis, Charalampos Papageorgiou, Manolis Markianos
OBJECTIVES: To evaluate body mass index (BMI) and its correlate plasma leptin levels that have been associated with psychiatric morbidity and suicidal behaviour, in relation to clinical features in psychiatric patients after a suicide attempt. METHODS: BMI and plasma leptin were assessed in 198 patients (66 males, age range of 21 to 80 years) who were admitted to the hospital after a suicide attempt, 98 with major depressive disorder, 28 with bipolar disorder, 30 with psychosis, and 42 with personality or adjustment disorder, compared to data of 134 healthy subjects, and evaluated in relation to gender, diagnosis, mode of attempt, and pharmacological treatment before attempt...
October 2017: Neuro Endocrinology Letters
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