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https://www.readbyqxmd.com/read/27911311/risk-factors-and-pathological-substrates-associated-with-agitation-aggression-in-alzheimer-s-disease-a-preliminary-study-using-nacc-data
#1
Simrin Sennik, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: Neuropsychiatric symptoms are common manifestations of Alzheimer's disease (AD). A number of studies have targeted psychosis, i.e., hallucinations and delusions in AD, but few have assessed agitation/aggression in AD. OBJECTIVE: To investigate the risk factors and pathological substrates associated with presence [A(+)] and absence [A(-)] of agitation/aggression (A) in autopsy-confirmed AD. METHODS: Data was collected from the UDS data as of 2015 on the NACC database...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27855483/prediction-of-relapse-after-discontinuation-of-antipsychotic-treatment-in-alzheimer-s-disease-the-role-of-hallucinations
#2
Anjali N Patel, Seonjoo Lee, Howard F Andrews, Gregory H Pelton, Susan K Schultz, David L Sultzer, Jacobo Mintzer, Danilo de la Pena, Sanjay Gupta, Sylvia Colon, Corbett Schimming, Bruce Levin, D P Devanand
OBJECTIVE: In Alzheimer's disease, antipsychotic medications are often used for a period, with relief of symptoms, and then discontinued, after which relapse may occur. The authors sought to determine which neuropsychiatric symptoms predict relapse. METHOD: In the Antipsychotic Discontinuation in Alzheimer's Disease trial, 180 patients with Alzheimer's disease and symptoms of agitation or psychosis were treated with risperidone for 16 weeks, after which patients who responded (N=110) were randomly assigned to continue risperidone for 32 weeks, to continue risperidone for 16 weeks followed by switch to placebo for 16 weeks, or to receive placebo for 32 weeks...
November 18, 2016: American Journal of Psychiatry
https://www.readbyqxmd.com/read/27819842/low-dose-lithium-treatment-for-agitation-and-psychosis-in-alzheimer-disease-and-frontotemporal-dementia-a-case-series
#3
Davangere P Devanand, Gregory H Pelton, Kristina D'Antonio, Jesse G Strickler, William C Kreisl, James Noble, Karen Marder, Anne Skomorowsky, Edward D Huey
No abstract text is available yet for this article.
November 4, 2016: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/27789118/adverse-structural-and-functional-effects-of-marijuana-on-the-brain-evidence-reviewed
#4
REVIEW
David E Mandelbaum, Suzanne M de la Monte
The growing use and legalization of cannabis are leading to increased exposures across all age groups, including in adolescence. The touting of its medicinal values stems from anecdotal reports related to treatment of a broad range of illnesses including epilepsy, multiple sclerosis, muscle spasms, arthritis, obesity, cancer, Alzheimer disease, Parkinson disease, post-traumatic stress, inflammatory bowel disease, and anxiety. However, it is essential that anecdotal data and the high level of interest in this treatment not obscure objective assessments of any potential and realized short- and long-term adverse effects of cannabis, particularly with respect to age of onset and chronicity of exposure...
September 13, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27714849/psychosocial-or-clinico-demographic-factors-related-to-neuropsychiatric-symptoms-in-patients-with-alzheimer-s-disease-needing-interventional-treatment-analysis-of-the-catie-ad-study
#5
Tomoyuki Nagata, Shinichiro Nakajima, Shunichiro Shinagawa, Eric Plitman, Ariel Graff-Guerrero, Masaru Mimura, Kazuhiko Nakayama
OBJECTIVE: This study sought to determine psychosocial and clinico-demographic factors related to each symptomatic cluster (i.e., aggressiveness, psychosis, apathy/eating problems, and emotion/disinhibition) of neuropsychiatric symptoms (NPSs) in patients with Alzheimer's disease (AD) needing interventional treatment against their agitation or psychotic symptoms. These clusters were classified from 12 Neuropsychiatric Inventory (NPI) subscores in our previous study using the Clinical Antipsychotic Trials of Intervention Effectiveness-Alzheimer's Disease (CATIE-AD) dataset...
October 7, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27662301/the-role-of-cerebrovascular-disease-on-cognitive-and-functional-status-and-psychosis-in-severe-alzheimer-s-disease
#6
Julia Kim, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: The pathophysiology behind psychosis in patients with Alzheimer's disease (AD) remains unknown. Recently, vascular risk factors have been recognized as important modifiers of the clinical presentation of AD. OBJECTIVE: The purpose of our study is to investigate the mechanism through which vascular risk factors mediate psychosis and whether or not it involves cerebrovascular lesions. METHODS: Data was provided by the National Alzheimer's Coordinating Centre...
November 1, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27632159/neuropsychiatric-symptom-clusters-in-stroke-and-transient-ischemic-attack-by-cognitive-status-and-stroke-subtype-frequency-and-relationships-with-vascular-lesions-brain-atrophy-and-amyloid
#7
Adrian Wong, Alexander Y L Lau, Jie Yang, Zhaolu Wang, Wenyan Liu, Bonnie Y K Lam, Lisa Au, Lin Shi, Defeng Wang, Winnie C W Chu, Yun-Yun Xiong, Eugene S K Lo, Lorraine S N Law, Thomas W H Leung, Linda C W Lam, Anne Y Y Chan, Yannie O Y Soo, Eric Y L Leung, Lawrence K S Wong, Vincent C T Mok
BACKGROUND: The objectives of this study are 1) to examine the frequencies of neuropsychiatric symptom clusters in patients with stroke or transient ischemic attack (TIA) by cognitive level and stroke subtype; and 2) to evaluate effect of demographic, clinical, and neuroimaging measures of chronic brain changes and amyloid upon neuropsychiatric symptom clusters. METHODS: Hospital-based, cross-sectional study. 518 patients were administered the Neuropsychiatric Inventory (NPI) 3-6 months post index admission...
2016: PloS One
https://www.readbyqxmd.com/read/27592250/ligand-autoradiographical-quantification-of-histamine-h3-receptor-in-human-dementia-with-lewy-bodies
#8
Natasha L Lethbridge, Paul L Chazot
Dementia with Lewy bodies (DLB) is a serious age-dependent human neurodegenerative disease, with multiple debilitating symptoms, including dementia, psychosis and significant motor deficits, but with little or no effective treatments. This comparative ligand autoradiographical study has quantified histamine H3 receptors (H3R) in a series of major cortical and basal ganglia structures in human DLB and Alzheimer's (AD) post-mortem cases using the highly selective radioligand, [(3)H] GSK189254. In the main, the levels of H3 receptor were largely preserved in DLB cases when compared with aged-matched controls...
August 31, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27583123/antipsychotic-use-in-dementia-a-systematic-review-of-benefits-and-risks-from-meta-analyses
#9
Rajesh R Tampi, Deena J Tampi, Silpa Balachandran, Shilpa Srinivasan
BACKGROUND: The purpose of this review is to evaluate the data on the use of antipsychotics in individuals with dementia from meta-analyses. METHODS: We performed a literature search of PubMed, MEDLINE, EMBASE, PsycINFO and Cochrane collaboration databases through 30 November, 2015 using the following keywords: 'antipsychotics', 'dementia' and 'meta-analysis'. The search was not restricted by the age of the patients or the language of the study. However, in the final analysis we only included studies involving patients that were published in English language journals or had official English translations...
September 2016: Therapeutic Advances in Chronic Disease
https://www.readbyqxmd.com/read/27567807/a-decade-of-cerebrospinal-fluid-biomarkers-for-alzheimer-s-disease-in-belgium
#10
Charisse Somers, Hanne Struyfs, Joery Goossens, Ellis Niemantsverdriet, Jill Luyckx, Naomi De Roeck, Ellen De Roeck, Bart De Vil, Patrick Cras, Jean-Jacques Martin, Peter-Paul De Deyn, Maria Bjerke, Sebastiaan Engelborghs
During the past ten years, over 5,000 cerebrospinal fluid (CSF) samples were analyzed at the Reference Center for Biological Markers of Dementia (BIODEM), UAntwerp, for core Alzheimer's disease (AD) CSF biomarkers: amyloid-β peptide of 42 amino acids (Aβ1-42), total tau protein (T-tau), and tau phosphorylated at threonine 181 (P-tau181P). CSF biomarker analyses were performed using single-analyte ELISA kits. In-house validated cutoff values were applied: Aβ1-42 <638.5 pg/mL, T-tau >296.5 pg/mL, P-tau181P >56...
August 10, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27561138/a-systematic-review-of-the-evidence-for-medical-marijuana-in-psychiatric-indications
#11
Samuel T Wilkinson, Rajiv Radhakrishnan, Deepak Cyril D'Souza
OBJECTIVE: Marijuana has been approved for a number of psychiatric conditions in many states in the US including posttraumatic stress disorder (PTSD), agitation in Alzheimer's disease, and Tourette's disorder. In this systematic review, we examine the strength of evidence for the efficacy of marijuana and other cannabinoids for these psychiatric indications. DATA SOURCES: The literature (MEDLINE) was searched for studies published between January 1980 and March 2015 using search terms related to marijuana and other cannabinoids and the specific diagnosis...
August 2016: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/27502299/revisiting-dlb-diagnosis-a-consideration-of-prodromal-dlb-and-of-the-diagnostic-overlap-with-alzheimer-disease
#12
Ian McKeith, John-Paul Taylor, Alan Thomas, Paul Donaghy, Joseph Kane
Efforts to clinically diagnose cases having dementia with Lewy bodies (DLB) identify those with a characteristic clinical syndrome (probable DLB) at the expense of missing an equal, if not greater, number of cases who have atypical presentations thought to be associated with coexisting Alzheimer pathologies. This article argues that further efforts should now be made to characterize this atypical group that constitutes cases previously identified postmortem as the Lewy body variant of Alzheimer disease (AD) or as AD with Lewy bodies...
September 2016: Journal of Geriatric Psychiatry and Neurology
https://www.readbyqxmd.com/read/27497990/polymorphisms-of-dopamine-receptor-genes-and-risk-of-visual-hallucinations-in-parkinson-s-patients
#13
M Ferrari, C Comi, F Marino, L Magistrelli, F De Marchi, R Cantello, G Riboldazzi, G Bono, M Cosentino
BACKGROUND: Visual hallucinations (VHs) are frequent non-motor complication of Parkinson's disease (PD), associated to a negative prognosis. Previous studies showed an association between dopamine receptor (DR) gene (DR) variants and psychosis in Alzheimer's disease, addictions, schizophrenia, and bipolar disorder. However, there are only a few studies on DR variants and VHs in PD, which did not provide conclusive results. OBJECTIVES: The present study aimed to determine whether genetic differences of DR are associated with visual hallucinations (VHs) in a cohort of Parkinson's disease (PD) patients...
November 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27490935/conjoint-ftld-fus-of-the-neuronal-intermediate-filament-inclusion-disease-type-progressive-supranuclear-palsy-and-alzheimer-s-pathology-presenting-as-parkinsonism-with-early-falls-and-late-hallucinations-psychosis-and-dementia
#14
Yaroslau Compta, Oscar Ramos-Campoy, Oriol Grau-Rivera, Martí Colom-Cadena, Jordi Clarimón, María José Martí, Ellen Gelpi
Progressive supranuclear palsy (PSP) is a low-prevalence atypical parkinsonism with underlying 4R-tauopathy and a growing number of clinical phenotypes, making its differential diagnosis from other conditions such as Parkinson's disease (PD) and corticobasal degeneration particularly challenging (1,2). Neuronal intermediate filament inclusion disease (NIFID), a sporadic alpha-internexin and fused-in-sarcoma (FUS) proteinopathy, is an even rarer condition with few cases published worldwide. It is most often diagnosed at autopsy, again due to a remarkable clinical heterogeneity ranging from young-onset frontotemporal dementia to PSP-lookalike parkinsonism, among other phenotypes (3-6)...
August 4, 2016: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/27486386/manual-protocol-inspired-technique-for-improving-automated-mr-image-segmentation-during-label-fusion
#15
Nikhil Bhagwat, Jon Pipitone, Julie L Winterburn, Ting Guo, Emma G Duerden, Aristotle N Voineskos, Martin Lepage, Steven P Miller, Jens C Pruessner, M Mallar Chakravarty
Recent advances in multi-atlas based algorithms address many of the previous limitations in model-based and probabilistic segmentation methods. However, at the label fusion stage, a majority of algorithms focus primarily on optimizing weight-maps associated with the atlas library based on a theoretical objective function that approximates the segmentation error. In contrast, we propose a novel method-Autocorrecting Walks over Localized Markov Random Fields (AWoL-MRF)-that aims at mimicking the sequential process of manual segmentation, which is the gold-standard for virtually all the segmentation methods...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27475642/predicting-imminent-risk-for-fracture-in-patients-aged-50-or-older-with-osteoporosis-using-us-claims-data
#16
M Bonafede, N Shi, R Barron, X Li, D B Crittenden, D Chandler
UNLABELLED: Patient characteristics contributing to imminent risk for fracture, defined as risk of near-term fracture within the next 12 to 24 months, have not been well defined. In patients without recent fracture, we identified factors predicting imminent risk for vertebral/nonvertebral fracture, including falls, age, comorbidities, and other potential fall risk factors. PURPOSE: Several factors contribute to long-term fracture risk in patients with osteoporosis, including age, bone mineral density, and fracture history...
December 2016: Archives of Osteoporosis
https://www.readbyqxmd.com/read/27190492/histamine-and-immune-biomarkers-in-cns-disorders
#17
REVIEW
Ramón Cacabelos, Clara Torrellas, Lucía Fernández-Novoa, Francisco López-Muñoz
Neuroimmune dysregulation is a common phenomenon in different forms of central nervous system (CNS) disorders. Cross-links between central and peripheral immune mechanisms appear to be disrupted as reflected by a series of immune markers (CD3, CD4, CD7, HLA-DR, CD25, CD28, and CD56) which show variability in brain disorders such as anxiety, depression, psychosis, stroke, Alzheimer's disease, Parkinson's disease, attention-deficit hyperactivity disorder, migraine, epilepsy, vascular dementia, mental retardation, cerebrovascular encephalopathy, multiple sclerosis, brain tumors, cranial nerve neuropathies, mental retardation, and posttraumatic brain injury...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27179364/-unexpected-outings-of-alzheimer-patients-living-in-retirement-homes-therapeutic-perspectives
#18
F Brossard, R Caron
OBJECTIVES: Various behavior disorders can occur during Alzheimer's disease, in particular unexpected outings. This article aims at understanding the diverse mechanisms present during a "runaway" episode, which can manifest in an acute way. The authors bring to light through clinical examples what is at work from a psychological perspective in order to create new accompaniment methods. METHOD: First, the authors reviewed the literature on runaway episodes in order to point out necessary themes for reflection...
May 11, 2016: L'Encéphale
https://www.readbyqxmd.com/read/27138080/determining-whether-a-definitive-causal-relationship-exists-between-aripiprazole-and-tardive-dyskinesia-and-or-dystonia-in-patients-with-major-depressive-disorder-part-3-clinical-trial-data
#19
Sheldon H Preskorn, Matthew Macaluso
This series of columns has 3 main goals: (1) to explain class warnings as used by the United States Food and Drug Administration, (2) to increase awareness of movement disorders that may occur in patients treated with antipsychotic medications, and (3) to understand why clinicians should refrain from immediately assuming a diagnosis of tardive dyskinesia/dystonia (TD) in patients who develop abnormal movements during treatment with antipsychotics. The first column in the series presented a patient who developed abnormal movements while being treated with aripiprazole as an augmentation strategy for major depressive disorder (MDD) and reviewed data concerning the historical background, incidence, prevalence, and risk factors for tardive and spontaneous dyskinesias, the clinical presentations of which closely resemble each other...
March 2016: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/27031490/association-between-antipsychotic-drugs-and-mortality-in-older-persons-with-alzheimer-s-disease-a-systematic-review-and-meta-analysis
#20
Yaoming Zhai, Song Yin, Dongfeng Zhang
Antipsychotic drugs have been inconsistently associated with death risk of Alzheimer's disease (AD) patients. Herein we review and quantitatively summarize the evidence from epidemiological studies. Pertinent studies were identified by searching PubMed and Cochrane Library Register of Controlled Trials through 20 December 2015. The DerSimonian and Laird random effect model was adopted as the pooling method. Twelve studies from nine articles with 11,463 participants were included. The pooled RR of observational studies was 1...
March 31, 2016: Journal of Alzheimer's Disease: JAD
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