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https://www.readbyqxmd.com/read/29884711/obstructive-hydrocephalus-caused-by-colloid-cyst-presenting-as-a-schizophrenia-like-psychosis
#1
Mikkel Højlund, Pia Hansen, Willy Krone, Lene Høgh
This report presents a young woman with psychotic symptoms that were highly suspicious of schizophrenia. Previous attempts of antidepressant therapy of mood symptoms had been ineffective. However, she also presented with discrete signs of an underlying neurological condition, and as a part of the diagnostic workup, neuroimaging revealed ventriculomegaly. She was diagnosed with obstructive hydrocephalus and experienced full remission of psychotic symptoms after neurosurgical intervention with a ventriculoperitoneal shunt...
June 8, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29858599/5-ht-2a-receptor-dependent-phosphorylation-of-mglu-2-receptor-at-serine-843-promotes-mglu-2-receptor-operated-g-i-o-signaling
#2
Samy Murat, Mathilde Bigot, Jonathan Chapron, Gabriele M König, Evi Kostenis, Giuseppe Battaglia, Ferdinando Nicoletti, Emmanuel Bourinet, Joël Bockaert, Philippe Marin, Franck Vandermoere
The serotonin 5-HT2A and glutamate mGlu2 receptors continue to attract particular attention, given their implication in psychosis associated with schizophrenia and the mechanism of action of atypical antipsychotics and a new class of antipsychotics, respectively. A large body of evidence indicates a functional crosstalk between both receptors in the brain, but the underlying mechanisms are not entirely elucidated. Here, we have explored the influence of 5-HT2A receptor upon the phosphorylation pattern of mGlu2 receptor in light of the importance of specific phosphorylation events in regulating G protein-coupled receptor signaling and physiological outcomes...
June 1, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29803209/antipsychotics-in-hyperthyroid-related-psychosis-case-report-and-systematic-review
#3
Danielle Golub, Victor Rodack
OBJECTIVES: Hyperthyroidism has been associated with relatively rare presentations of psychotic symptoms. We report an example of the successful use of antipsychotics to manage psychotic symptoms in hyperthyroid-related psychosis. Furthermore, we systematically describe the available literature on the use of antipsychotics in this setting to determine the associated relative efficacies of the various antipsychotic agents. METHODS: Presentation of a case of hyperthyroid-related psychosis treated with an antipsychotic agent followed by a systematic review of all similar cases: PubMed, Ovid MEDLINE and PMC were searched for articles published between 1960 and 2017 that report on the use of specific antipsychotics in the management of hyperthyroid-related psychosis...
March 27, 2018: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/29790849/-n-methyl-d-aspartate-receptor-antibody-encephalitis-the-janus-faced-disorder
#4
Ildiko Sipos
The recognition of the antibody-mediated encephalitis as a separate entity among the immune disorders of the central nervous system was one of the greatest breakthroughs of the last two decades in neurology. Unlike viral or tumor-related encephalitis, the antibody-mediated form has a good response to immunotherapy, which gives a special clinical importance to the discovery. Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is one of the first fully characterized antibody-mediated encephalitises. This article attempts to summarize the clinical features of this complex neuropsychiatric disorder with the aim to help its early recognition and to report the clinical course and the outcome of our six seropositive anti-NMDAR cases...
March 2018: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/29782995/efficacy-of-antipsychotics-in-dementia-depended-on-the-definition-of-patients-and-outcomes-a-meta-epidemiological-study
#5
REVIEW
C H W Smeets, S U Zuidema, T A Hulshof, M Smalbrugge, D L Gerritsen, R T C M Koopmans, H J Luijendijk
OBJECTIVE: Postulating that efficacy of antipsychotics for agitation and psychosis in dementia is best estimated in trials among patients with these symptoms and with symptom-specific outcomes, we investigated whether clinically broader definitions affected the pooled efficacy. STUDY DESIGN AND SETTING: Trials were searched in multiple databases and categorized according to patient population (agitated, psychotic, mixed) and outcome scale (agitation, psychosis, generic)...
May 18, 2018: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/29707425/psychosis-in-a-child-with-atypical-autism-a-case-report-and-a-brief-review-of-the-association-of-psychosis-and-autism
#6
Swapnajeet Sahoo, Susanta Kumar Padhy, Neha Singla, Aakanksha Singh
Recent studies have shown that individuals with an autism spectrum disorder (ASD) are at an increased risk of developing psychosis. Diagnosing psychosis in such individuals can be challenging when they present with symptoms at a young age. A careful history and thorough assessment are essential for proper diagnosis to avoid mislabeling certain behavioral problems encountered among children with ASD. We present the case of a 12-year-old child with atypical autism who developed psychotic symptoms that led to a diagnostic dilemma...
April 1, 2018: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/29684390/lack-of-dopamine-supersensitivity-in-rats-after-chronic-administration-of-blonanserin-comparison-with-haloperidol
#7
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 (0.78 mg/kg) or haloperidol (1...
July 5, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29674240/the-impact-of-antipsychotics-as-a-risk-factor-for-thromboembolism
#8
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...
June 2018: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29670407/first-episode-psychosis-as-the-initial-presentation-of-multiple-sclerosis-a-case-report
#9
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
#10
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 2018: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29559781/novel-treatment-options-in-depression-and-psychosis
#11
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
#12
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
#13
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
#14
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
#15
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; and (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...
March 12, 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
#16
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
#17
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 (SCZ), de novo in a girl with atypical Rett syndrome, and de novo in a woman with SCZ...
May 2018: Human Mutation
https://www.readbyqxmd.com/read/29431144/paradigm-shift-purity-progress-and-the-origins-of-first-episode-psychosis
#18
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
#19
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
#20
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
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