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https://www.readbyqxmd.com/read/29675082/susac-s-syndrome-retinocochleocerebral-vasculopathy-follow-up-of-a-pediatric-patient
#1
Zeynep Selen Karalok, Birce Dilge Taskin, Alev Guven, Cemile Atilgan Ucgul, Omer Faruk Aydin
Susac's syndrome (SS) is a triad of encephalopathy, branch retinal artery occlusion (BRAO), and sensorineural hearing loss as a result of microvascular occlusions of the brain, retina, and inner ear. It is also a disorder of autoimmune endotheliopathy. SS usually affects young women between the age of 20 and 40 years. SS can be misdiagnosed as multiple sclerosis (MS) or acute disseminated encephalomyelitis (ADEM) because of similar findings. A 15-year-old girl presented in June 2015 with vomiting and severe headache...
October 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29672108/a-greater-tendency-for-representation-mediated-learning-in-a-ketamine-mouse-model-of-schizophrenia
#2
Ming Teng Koh, Paige S Ahrens, Michela Gallagher
Representation mediated learning is a behavioral paradigm that could be used to potentially capture psychotic symptoms including hallucinations and delusions in schizophrenia. In studies of mediated learning, representations of prior experience can enter into current associations. Using a ketamine model of schizophrenia, we investigated whether mice exposed to ketamine during late adolescence subsequently showed an increased tendency to use a representation of a prior gustatory experience to form associations in learning...
April 2018: Behavioral Neuroscience
https://www.readbyqxmd.com/read/29664276/effects-of-n-n-dimethyltryptamine-dmt-on-rat-behaviors-relevant-to-anxiety-and-depression
#3
Lindsay P Cameron, Charlie J Benson, Lee E Dunlap, David E Olson
Depression and anxiety disorders are debilitating diseases resulting in substantial economic costs to society. Traditional antidepressants often take weeks to months to positively affect mood and are ineffective for about 30% of the population. Alternatives, such as ketamine, a dissociative anesthetic capable of producing hallucinations, and the psychoactive tisane ayahuasca have shown great promise due to their fast-acting nature and effectiveness in treatment-resistant populations. Here, we investigate the effects of N,N-dimethyltryptamine (DMT), the principle hallucinogenic component of ayahuasca, in rodent behavioral assays relevant to anxiety and depression using adult, male, Sprague-Dawley rats...
April 17, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29662465/the-length-of-snca-rep1-microsatellite-may-influence-cognitive-evolution-in-parkinson-s-disease
#4
Lucia Corrado, Fabiola De Marchi, Sara Tunesi, Gaia Donata Oggioni, Miryam Carecchio, Luca Magistrelli, Silvana Tesei, Giulio Riboldazzi, Alessio Di Fonzo, Clarissa Locci, Ilaria Trezzi, Roberta Zangaglia, Cristina Cereda, Sandra D'Alfonso, Corrado Magnani, Giacomo P Comi, Giorgio Bono, Claudio Pacchetti, Roberto Cantello, Stefano Goldwurm, Cristoforo Comi
Background: Alpha-synuclein is a constituent of Lewy bodies and mutations of its gene cause familial Parkinson's disease (PD). A previous study showed that a variant of the alpha-synuclein gene ( SNCA ), namely the 263 bp allele of Rep1 was associated with faster motor progression in PD. On the contrary, a recent report failed to detect a detrimental effect of Rep1 263 on both motor and cognitive outcomes in PD. Aim of this study was to evaluate the influence of the Rep1 variants on disease progression in PD patients...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29660570/the-tangled-roots-of-inner-speech-voices-and-delusions
#5
Cherise Rosen, Simon McCarthy-Jones, Kayla A Chase, Clara S Humpston, Jennifer K Melbourne, Leah Kling, Rajiv P Sharma
The role of inner speech in the experience of auditory verbal hallucinations (AVH) and delusions remains unclear. This exploratory study tested for differences in inner speech (assessed via self-report questionnaire) between 89 participants with psychosis and 37 non-clinical controls. We also tested for associations of inner speech with, i) state/trait AVH, ii) AVH-severity; iii) patients' relations with their voices, and; iv) delusion-severity. Persons with psychosis had greater levels of dialogic inner speech, other people in inner speech, and evaluative/motivational inner speech than non-clinical controls...
April 9, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29660081/data-driven-analysis-of-functional-connectivity-reveals-a-potential-auditory-verbal-hallucination-network
#6
Dustin Scheinost, Fuyuze Tokoglu, Michelle Hampson, Ralph Hoffman, R Todd Constable
Schizophrenia is a severe global health problem, with over half of such patients experiencing auditory verbal hallucinations (AVHs). A better understanding of the neural correlates differentiating patients experiencing AVHs from patients not experiencing AVHs and healthy controls may identify targets that lead to better treatment strategies for AVHs. Employing 2 data-driven, voxel-based measure of functional connectivity, we studied 46 patients with schizophrenia or schizoaffective disorder (28 experiencing AVHs and 18 not experiencing AVHs)...
April 5, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29653315/eeg-based-neurophysiological-indicators-of-hallucinations-in-alzheimer-s-disease-comparison-with-dementia-with-lewy-bodies
#7
Meenakshi Dauwan, Mascha M J Linszen, Afina W Lemstra, Philip Scheltens, Cornelis J Stam, Iris E Sommer
We studied neurophysiological indicators of hallucinations in Alzheimer's disease patients with hallucinations (ADhall+), and compared them with nonhallucinating AD (ADhall-) and dementia with Lewy bodies (DLBhall+) patients. Thirty-six matched ADhall+ and 108 ADhall- and 29 DLBhall+ patients were selected from the Amsterdam Dementia Cohort. Electroencephalography (EEG) spectral and functional connectivity (FC) analyses (phase lag index) were performed. Quantitative and visual EEG measures were combined in a random forest algorithm to determine which EEG-based variable(s) play a role in hallucinations...
March 19, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29652961/-severe-leg-edema-associated-with-the-use-of-dopaminergic-drugs-in-parkinson-s-disease-report-of-one-case
#8
Marcelo Miranda C, Lorena Hudson A
The main adverse effects of dopaminergic drugs used in Parkinson's disease are hypotension, somnolence, hallucinations and impulse control disorder. Less common is leg edema. We report on a 68-year-old male receiving levodopa and pramipexole consulting for severe leg edema lasting two years, whose etiology was not ascertained with multiple lab tests. This edema subsided substantially when pramipexole was discontinued and the dose of levodopa was increased to treat motor symptoms.
December 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/29645317/slow-infusion-of-low-hyphen-dose-ketamine-reduces-bothersome-side-effects-compared-to-iv-push-a-double-hyphen-blind-double-dummy-randomized-controlled-trial
#9
Eben J Clattenburg, Christian Hailozian, Daniel Haro, Tina Yoo, Stefan Flores, Derex Louie, Andrew A Herring
STUDY OBJECTIVE: We compared the analgesic efficacy and incidence of side effects when low{\hyphen}dose (0.3 mg{\sol}kg) ketamine (LDK) is administered as a slow infusion (SI) over 15 minutes versus an intravenous push (IVP) over one minute. METHODS: This was a prospective, randomized, double blind, double dummy, placebo{\hyphen}controlled trial of adult ED patients presenting with moderate to severe pain (numerical rating score ≥ 5). Patients received ketamine 0...
April 12, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29643820/the-attribution-of-mental-health-problems-to-jinn-an-explorative-study-in-a-transcultural-psychiatric-outpatient-clinic
#10
Anastasia Lim, Hans W Hoek, Samrad Ghane, Mathijs Deen, Jan Dirk Blom
Background: Among Muslim patients, a common cultural concept of distress is the notion that jinn may be the cause of mental health problems, especially in the presence of hallucinations. Objective: This study examines the frequency with which this attribution style is manifest in a specific psychiatric outpatient population with a Muslim background. Methods: Of all patients registered at an outpatient clinic specialized in transcultural psychiatry, data were collected on folk belief, religion, hallucinations (if present), and medical diagnosis...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29626263/investigation-of-the-pharmaceutical-care-in-one-elderly-parkinson-s-disease-patient-with-psychotic-symptoms
#11
Chun-Ping Gu, Yue-Liang Xie, Yin-Juan Liao, Cui-Fang Wu, Sheng-Feng Wang, Yu-Lu Zhou, Su-Jie Jia
A 66-year-old male patient with a 10-year course of Parkinson's disease (PD) was admitted for hallucination lasting a half a month. After treatment with levodopa/carbidopa, selegiline, and piribedil, the patient's motor symptoms were improved while no significant effects were observed on psychotic symptoms. A clinical pharmacist analyzed the pharmacologic and pharmacokinetic characteristics of selegiline and piribedil, summarized the scheme of PD with psychotic symptoms in the literature, and discovered that selegiline might potentiate psychotic side effects of piribedil, while the use of levodopa/carbidopa cannot be ruled out either...
April 6, 2018: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29623839/identifying-patterns-in-signs-and-symptoms-preceding-the-clinical-diagnosis-of-alzheimer-s-disease-retrospective-medical-record-review-study-and-a-nested-case-control-design
#12
Fidelia Bature, Dong Pang, Anthea Robinson, Norma Polson, Yannis Pappas, Barbara Guinn
OBJECTIVE: Evidence suggests that individuals with Alzheimer's disease (AD) are often diagnosed in the later stages of their disease with a poor prognosis. This study aimed to identify patterns in signs and symptoms preceding the clinical diagnosis of AD to suggest a predictive model for earlier diagnosis of the disease in the primary care. DESIGN: A retrospective medical record review; nested case control design. PARTICIPANTS: Participants included one hundred and nine patients from three general practice (GP) surgeries in Milton Keynes and Luton Clinical Commissioning groups (CCG) (37 cases with AD and 72 controls without AD)...
April 4, 2018: Current Alzheimer Research
https://www.readbyqxmd.com/read/29623723/macular-toxicity-and-blind-spot-enlargement-during-a-treatment-by-voriconazole-a-case-report
#13
Anaïs Mounier, Emilie Agard, Ikrame Douma, Hussam El Chehab, Anne L Vie, Jean M Dot, Corinne Dot
PURPOSE: To report a case of macular toxicity and blind spot enlargement during voriconazole treatment. METHODS: This is a case report. RESULTS: We describe a 77-year-old man treated by voriconazole for pulmonary aspergillosis, who complained of visual disorders such as dyschromatopsia and visual hallucinations 3 days after voriconazole initiation. Initial ophthalmological examination found no loss of visual acuity. The anterior and posterior segments presented no anomalies...
March 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29620695/misuse-of-trihexyphenidyl-artane-on-r%C3%A3-union-island
#14
Romain Torrents, Jean Francois Ferré, Annie Konareff, Patrice Hemery, Kenneth Sherwin, Christian Lassalle, Nicolas Simon, Sami Scerra
BACKGROUND: Trihexyphenidyl (THP) is an anticholinergic drug misused to procure hallucination, sedation, and anxiolysis. The aim of this cohort was to show and describe, within a public health risk management policy, the risks of a long-standing but relatively unknown addiction: THP addiction. METHODS: On Réunion island, a cohort with systematic data collection has been set up by addictologists working in the Centres for Addiction Prevention and Treatment, in the university hospital, and in general practices who have active lists of patients misusing THP...
April 3, 2018: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29618627/baseline-symptoms-and-basal-forebrain-volume-predict-future-psychosis-in-early-parkinson-disease
#15
Matthew J Barrett, Jamie C Blair, Scott A Sperling, Mark E Smolkin, T Jason Druzgal
OBJECTIVE: Determining baseline predictors of future psychosis in Parkinson disease (PD) may identify those at risk for more rapidly progressive disease, i.e., a more malignant PD subtype. METHODS: This cohort study evaluated 423 patients with newly diagnosed PD collected as part of the Parkinson's Progression Markers Initiative. Psychotic symptoms were assessed with the Movement Disorders Society-Unified Parkinson Disease Rating Scale item 1.2, which assesses hallucinations and psychosis over the past week...
April 4, 2018: Neurology
https://www.readbyqxmd.com/read/29616151/narcolepsy-in-adolescence-a-missed-diagnosis-a-case-report
#16
Anoop K Gupta, Swapnajeet Sahoo, Sandeep Grover
<b/> Narcolepsy is an uncommon sleep cycle disorder with a usual onset in adolescence, but it is often misdiagnosed and underdiagnosed. Rarely is the tetrad of excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, and sleep paralysis seen in patients. The clinical characteristics of narcolepsy are often confused with many psychiatric and neurologic disorders. Lack of clinical awareness about narcolepsy leads to frequent prescriptions of antiepileptics and psychotropics, which can adversely affect the quality of life of children and adolescents...
July 2017: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/29609711/melatonin-responsive-complex-nocturnal-visual-hallucinations
#17
Liudmila Lysenko, Sushanth Bhat
Complex nocturnal visual hallucinations are vivid, dramatic, intricate visual hallucinations occurring during sleep onset or awakenings at night, generally lasting for a few minutes at most and disappearing with increased levels of light. They may occur in a number of neurological conditions, as well as in normal individuals. The optimal treatment for this condition remains unclear. We describe three patients with complex nocturnal visual hallucinations in whom melatonin brought about a dramatic improvement in symptoms...
March 30, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29606318/kleine-levin-syndrome-a-neuropsychiatric-disorder
#18
REVIEW
I Arnulf, E Groos, P Dodet
Kleine-Levin syndrome (KLS) is a rare, relapsing-remitting disease that affects mostly adolescents. It is characterized by episodes lasting from 1 to several weeks, and comprises neurological (hypersomnia, confusion, slowness, amnesia) and neuropsychiatric symptoms (derealization and apathy). Some psychiatric symptoms (megaphagia, hypersexuality, anxiety, depressed mood, hallucinations, delusions) arise during episodes, albeit less frequently, while patients are normal between episodes. However, sudden severe (>18h/day of sleep) and recurrent hypersomnia helps to differentiate KLS from other psychiatric mimics...
March 30, 2018: Revue Neurologique
https://www.readbyqxmd.com/read/29605187/antipsychotic-drugs-versus-cognitive-behavioural-therapy-versus-a-combination-of-both-in-people-with-psychosis-a-randomised-controlled-pilot-and-feasibility-study
#19
Anthony P Morrison, Heather Law, Lucy Carter, Rachel Sellers, Richard Emsley, Melissa Pyle, Paul French, David Shiers, Alison R Yung, Elizabeth K Murphy, Natasha Holden, Ann Steele, Samantha E Bowe, Jasper Palmier-Claus, Victoria Brooks, Rory Byrne, Linda Davies, Peter M Haddad
BACKGROUND: Little evidence is available for head-to-head comparisons of psychosocial interventions and pharmacological interventions in psychosis. We aimed to establish whether a randomised controlled trial of cognitive behavioural therapy (CBT) versus antipsychotic drugs versus a combination of both would be feasible in people with psychosis. METHODS: We did a single-site, single-blind pilot randomised controlled trial in people with psychosis who used services in National Health Service trusts across Greater Manchester, UK...
March 28, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29605036/ketamine-versus-hydromorphone-patient-controlled-analgesia-for-acute-pain-in-trauma-patients
#20
Sheila C Takieddine, Christopher A Droege, Neil Ernst, Molly E Droege, Megan Webb, Richard D Branson, Travis W Gerlach, Bryce R H Robinson, Jay A Johannigman, Eric W Mueller
BACKGROUND: It is unknown whether ketamine administered via patient-controlled analgesia (PCA) provides adequate analgesia while reducing opioid consumption in the traumatically injured patient. Differences in opioid consumption, pain scores, and adverse effects between ketamine and hydromorphone PCA were studied. MATERIALS AND METHODS: This is an investigator-initiated, single-center, double-blinded, randomized, pilot trial conducted from 2014 to 2016 at a level 1 trauma center...
May 2018: Journal of Surgical Research
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