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https://www.readbyqxmd.com/read/28419824/effect-of-risperidone-on-serum-homocysteine-levels-in-first-episode-drug-na%C3%A3-ve-patients-with-schizophrenia
#1
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/28417559/asenapine-modulates-mood-related-behaviors-and-5-ht1a-7-receptors-mediated-neurotransmission
#2
Sarah Delcourte, Erika Abrial, Adeline Etiévant, Renaud Rovera, Jørn Arnt, Michael Didriksen, Nasser Haddjeri
AIM: Asenapine is a new atypical antipsychotic prescribed for the treatment of psychosis/bipolar disorders that presents higher affinity for serotonergic than dopaminergic receptors. The objective of this study was to investigate its antidepressant-like and antimanic-like properties on relevant animal models of depression and mania and to assess the acute and chronic effect of Asenapine on dorsal raphe nucleus (DRN) 5-HT cell firing activity. METHODS: We assessed the effects of Asenapine using in vivo electrophysiological and behavioral assays in rats...
April 17, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28408348/design-and-in-vivo-evaluation-of-solid-lipid-nanoparticulate-systems-of-olanzapine-for-acute-phase-schizophrenia-treatment-investigations-on-antipsychotic-potential-and-adverse-effects
#3
Emil Joseph, Satish Reddi, Vibhu Rinwa, Garima Balwani, Ranendra Saha
The present paper discusses the design, characterization and in vivo evaluation of glyceryl monostearate nanoparticles of Olanzapine, an atypical antipsychotic drug for acute schizophrenia treatment, during which hospitalization is mandatory and adverse effects are at its peak. The solid lipid nanoparticulate system was obtained by emulsification-ultra sonication technique wherein three factors such as solid lipid content, concentration of surfactant and drug: solid lipid ratio were selected at three different levels in order to study their influence on significant characteristic responses such as particle size, encapsulation efficiency and drug content...
April 10, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28374697/-a-differential-approach-to-the-improvement-of-prevention-and-correction-of-neuroleptic-side-extrapyramidal-disorders-with-pantogam-activ-in-patients-with-schizophrenia
#4
A S Tiganov, G P Panteleeva, L I Abramova, P V Bologov, P S Kananovich, M A Omel'chenko, I Yu Nikiforova
AIM: To assess the efficacy and safety of pantogam active (PA) in prevention and correction of neurological side-effects during the course neuroleptic treatment of acute endogenous psychoses. MATERIAL AND METHODS: Eighty schizophrenic patients (mean age 33 years) with acute psychosis were examined. All patients received 28-day course treatment with typical and atypical neuroleptics. Two equal groups were studied: patients of the first group were treated with trihexyphenidyl (THP) in dose of 0,002-0,012 mg and patients of the second group received in addition PA in dose 0,9 mg/day...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28373127/rp5063-an-atypical-antipsychotic-drug-with-a-unique-pharmacologic-profile-improves-declarative-memory-and-psychosis-in-mouse-models-of-schizophrenia
#5
Lakshmi Rajagopal, Sunoh Kwon, Mei Huang, Eric Michael, Laxminarayan Bhat, Marc Cantillon, Herbert Y Meltzer
Various types of atypical antipsychotic drugs (AAPDs) modestly improve the cognitive impairment associated with schizophrenia (CIAS). RP5063 is an AAPD with a diverse and unique pharmacology, including partial agonism at dopamine (DA) D2, D3, D4, serotonin (5-HT)1A, and 5-HT2A receptors (Rs), full agonism at α4β2 nicotinic acetylcholine (ACh)R (nAChR), and antagonism at 5-HT2B, 5-HT6, and 5-HT7Rs. Most atypical APDs are 5-HT2A inverse agonists. The efficacy of RP5063 in mouse models of psychosis and episodic memory were studied...
March 31, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28360793/withdrawal-emergent-dyskinesia-and-supersensitivity-psychosis-due-to-olanzapine-use
#6
Hakan Karaş, Mehmet Güdük, Ömer Saatcioğlu
Tardive dyskinesia (TD) usually appears after years of antipsychotic drug use and appears to be related to the total lifetime medication dose. In withdrawal-emergent dyskinesia (WE-D), which is considered to be a subtype of TD, dyskinetic symptoms often appear shortly after a rapid reduction in antipsychotic drug dose or sudden discontinuation of the drug. Supersensitivity psychosis, which is frequently observed along with TD and is considered to have a similar etiology as TD, is a psychotic relapse phenomenon that occurs after the withdrawal of an antipsychotic drug or a rapid reduction in the drug dosage...
June 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28356108/amelioration-of-experimental-autoimmune-encephalomyelitis-by-clozapine-is-not-associated-with-defective-cd4-t-cell-responses
#7
Pirooz Zareie, Bronwen Connor, Anne Camille La Flamme
Atypical antipsychotic agents, such as clozapine, are used for treating psychosis and depression and have recently been found to modulate neuroinflammation. We have shown previously that treatment of mice with the atypical antipsychotic agents, clozapine or risperidone, attenuates disease severity in experimental autoimmune encephalomyelitis (EAE); however, the mechanism by which they are protective is unknown. In this study, we investigated the effects of clozapine on CD4(+) T cell responses and found that clozapine did not significantly affect the expansion of myelin-specific T cells, their differentiation into pathogenic subsets, or their encephalitogenic capacity to induce EAE...
March 29, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28331324/update-on-the-treatment-of-parkinson-s-disease-psychosis-role-of-pimavanserin
#8
REVIEW
Brianna L Combs, Arthur G Cox
Parkinson's disease (PD) has a prevalence of nearly 1 million people in the USA, with increasing incidence in the elderly population. Generally, the age of presentation is between 55 and 65 years, with the likelihood of diagnosis increasing as patients reach the age of 80 years or above. Some of the common treatments for PD increase dopamine levels in the brain. Dopaminergic therapy helps to improve motor and non-motor symptoms, but it is not without risks. Dopaminergic therapy can cause confusion, delirium, and psychotic-like behavior...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28304340/neuroinflammation-and-oxidative-stress-in-psychosis-and-psychosis-risk
#9
REVIEW
Henry Barron, Sina Hafizi, Ana C Andreazza, Romina Mizrahi
Although our understanding of psychotic disorders has advanced substantially in the past few decades, very little has changed in the standard of care for these illnesses since the development of atypical anti-psychotics in the 1990s. Here, we integrate new insights into the pathophysiology with the increasing interest in early detection and prevention. First, we explore the role of N-methyl-d-aspartate receptors in a subpopulation of cortical parvalbumin-containing interneurons (PVIs). Postmortem and preclinical data has implicated these neurons in the positive and negative symptoms, as well as the cognitive dysfunction present in schizophrenia...
March 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28259697/antipsychotic-use-and-physical-morbidity-in-parkinson-disease
#10
Daniel Weintraub, Claire Chiang, Hyungjin Myra Kim, Jayne Wilkinson, Connie Marras, Barbara Stanislawski, Eugenia Mamikonyan, Helen C Kales
OBJECTIVE: To determine if antipsychotic (AP) use in Parkinson disease (PD) patients is associated with increased physical morbidity. METHODS: Veterans Health Administration data (1999-2010) was used to examine physical morbidity risk associated with AP use in idiopathic PD patients with stable recent physical health. We compared 180-day morbidity rates in patients initiating an AP with matched non-AP users who survived for 180 days (matched on age, sex, race, index year, presence and duration of dementia, PD duration, delirium, hospitalization, Charlson Comorbidity Index, and new non-psychiatric medications; covarying for psychosis)...
February 2, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28223808/n-methyl-d-aspartate-receptor-antibody-could-be-a-cause-of-catatonic-symptoms-in-psychiatric-patients-case-reports-and-methods-for-detection
#11
Ko Tsutsui, Takashi Kanbayashi, Manabu Takaki, Yuki Omori, Yumiko Imai, Seiji Nishino, Keiko Tanaka, Tetsuo Shimizu
The symptoms of catatonia have been reported to be similar to the initial symptoms of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. Subsequently, this autoimmune limbic encephalitis has been noticed by many psychiatrists. For a differential diagnosis of catatonic state, it is important to detect anti-NMDAR encephalitis. This encephalitis is expected to be in remission by early detection and treatment. We should be more cautious about catatonic symptoms of schizophrenia. When a patient is suspected of having encephalitis, we should screen for anti-NMDAR antibodies in cerebrospinal fluid samples using a cell-based assay...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28221369/chemistry-based-molecular-signature-underlying-the-atypia-of-clozapine
#12
T Cardozo, E Shmelkov, K Felsovalyi, J Swetnam, T Butler, D Malaspina, S V Shmelkov
The central nervous system is functionally organized as a dynamic network of interacting neural circuits that underlies observable behaviors. At higher resolution, these behaviors, or phenotypes, are defined by the activity of a specific set of biomolecules within those circuits. Identification of molecules that govern psychiatric phenotypes is a major challenge. The only organic molecular entities objectively associated with psychiatric phenotypes in humans are drugs that induce psychiatric phenotypes and drugs used for treatment of specific psychiatric conditions...
February 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28152356/cardiovascular-disease-in-patients-with-schizophrenia
#13
Leonard Kritharides, Vincent Chow, Tim Jr Lambert
Patients with schizophrenia die on average 25 years earlier than the general population, and this gap appears to be increasing. Most of the excess mortality is due to premature cardiovascular deaths rather than suicide. Many psychotropic agents are orexigenic and can increase weight and promote dyslipidaemia. Traditional cardiac risk factors are undertreated among patients with schizophrenia, and they are less likely to receive cardiac revascularisation than those without a mental illness. Clozapine is an atypical antipsychotic medication effective for treatment of refractory schizophrenia, but is associated with the risk of myocarditis and cardiomyopathy...
February 6, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28144616/steroid-induced-psychosis-after-eus-guided-celiac-plexus-blockade
#14
David C Olson, Jason J Lewis
A 46-year-old female with no previous personal or family psychiatric history underwent endoscopic ultrasound (EUS)-guided celiac plexus blockade (CPB) to treat pain related to cystic fibrosis transmembrane conductance regulator-associated chronic pancreatitis. She had excellent response to her first three CPBs using bupivacaine and triamcinolone. The patient's subsequent CPBs were complicated by symptoms of racing thoughts, delusional thinking, and insomnia. She was diagnosed with acute psychosis secondary to triamcinolone...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28143678/episodic-memory-functions-in-first-episode-psychosis-and-clinical-high-risk-individuals
#15
Sarah E Greenland-White, J Daniel Ragland, Tara A Niendam, Emilio Ferrer, Cameron S Carter
OBJECTIVE: Individuals with schizophrenia have disproportionate memory impairments when encoding relational versus item-specific information, and when using recollection versus familiarity during retrieval. It is unclear whether this pattern is unique to people with chronic schizophrenia, or if it occurs in individuals after a first episode of psychosis (FE), or when at clinical high-risk for psychosis (CHR). METHODS: We administered the Relational and Item-Specific Memory task (RiSE) to 22 CHR, 101 FE, and 58 typically developing (TD) participants...
January 28, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28138118/reduction-of-severity-of-recurrent-psychotic-episode-by-sustained-treatment-with-aripiprazole-in-a-schizophrenic-patient-with-dopamine-supersensitivity-a-case-report
#16
Shigenori Tadokoro, Naho Nonomura, Nobuhisa Kanahara, Kenji Hashimoto, Masaomi Iyo
Dopamine supersensitivity psychosis (DSP) is a type of acute exacerbation of recurrent psychosis caused by long-term treatment with antipsychotics in schizophrenic patients. Although DSP is exceedingly troublesome for clinicians, effective treatment has not yet been established. Based on clinical research and our animal study, we hypothesize that aripiprazole, an atypical antipsychotic, may reduce the exacerbation of recurrent psychotic episodes. We report the case of a 46-year-old female who suffered from schizophrenia with DSP...
February 28, 2017: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28056870/anti-n-methyl-d-aspartate-receptor-nmdar-antibody-encephalitis-presents-in-atypical-types-and-coexists-with-neuromyelitis-optica-spectrum-disorder-or-neurosyphilis
#17
Kaiyu Qin, Wenqing Wu, Yuming Huang, Dongmei Xu, Lei Zhang, Bowen Zheng, Meijuan Jiang, Cheng Kou, Junhua Gao, Wurong Li, Jinglin Zhang, Sumei Wang, Yanfei Luan, Chaoling Yan, Dan Xu, Xinmei Zheng
BACKGROUND: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a clinically heterogeneous disorder characterized by epileptic seizures, psychosis, dyskinesia, consciousness impairments, and autonomic instability. Symptoms are always various. Sometimes it presents in milder or incomplete forms. We report 4 cases of anti-NMDAR encephalitis with incomplete forms, 3 cases of which were accompanied by neuromyelitis optica spectrum disorder or neurosyphilis respectively. CASE PRESENTATION: A 33-year-old man presented with dysarthria, movement disorder and occasional seizures...
January 5, 2017: BMC Neurology
https://www.readbyqxmd.com/read/27979819/psychosis-in-autism-comparison-of-the-features-of-both-conditions-in-a-dually-affected-cohort
#18
Felicity V Larson, Adam P Wagner, Peter B Jones, Digby Tantam, Meng-Chuan Lai, Simon Baron-Cohen, Anthony J Holland
BackgroundThere is limited information on the presentation and characteristics of psychotic illness experienced by people with autism spectrum disorder (ASD).AimsTo describe autistic and psychotic phenomenology in a group of individuals with comorbid ASD and psychosis (ASD-P) and compare this group with populations affected by either, alone.MethodWe studied 116 individuals with ASD-P. We compared features of their ASD with people with ASD and no comorbid psychosis (ASD-NP), and clinical characteristics of psychosis in ASD-P with people with psychosis only...
April 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/27971407/the-prevalence-of-atypical-antipsychotic-medication-use-for-pediatric-psychosis-in-korea
#19
H Lee, H Kang
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27964941/testing-continuum-models-of-psychosis-no-reduction-in-source-monitoring-ability-in-healthy-individuals-prone-to-auditory-hallucinations
#20
Jane R Garrison, Peter Moseley, Ben Alderson-Day, David Smailes, Charles Fernyhough, Jon S Simons
People with schizophrenia who hallucinate show impairments in reality monitoring (the ability to distinguish internally generated information from information obtained from external sources) compared to non-hallucinating patients and healthy individuals. While this may be explained at least in part by an increased externalizing bias, it remains unclear whether this impairment is specific to reality monitoring, or whether it also reflects a general deficit in the monitoring of self-generated information (internal source monitoring)...
November 22, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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