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https://www.readbyqxmd.com/read/28289829/subjective-memory-impairment-in-general-practice-short-overview-and-design-of-a%C3%A2-mixed-methods-study
#1
Michael Pentzek, Verena Leve, Verena Leucht
BACKGROUND: Public awareness for dementia is rising and patients with concerns about forgetfulness are not uncommon in general practice. For the general practitioner (GP) subjectively perceived memory impairment (SMI) also offers a chance to broach the issue of cognitive function with the patient. This may support GPs' patient-centered care in terms of a broader frailty concept. OBJECTIVE: What is SMI (definition, operationalization, prevalence and burden)? Which conceptions and approaches do GPs have regarding SMI? METHODS: Narrative overview of recent SMI criteria and results, selective utilization of results from a systematic literature search on GP dementia care, non-systematic search regarding SMI in general practice, deduction of a study design from the overview and development according to international standards...
March 13, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28289283/the-dopamine-hypothesis-of-bipolar-affective-disorder-the-state-of-the-art-and-implications-for-treatment
#2
REVIEW
A H Ashok, T R Marques, S Jauhar, M M Nour, G M Goodwin, A H Young, O D Howes
Bipolar affective disorder is a common neuropsychiatric disorder. Although its neurobiological underpinnings are incompletely understood, the dopamine hypothesis has been a key theory of the pathophysiology of both manic and depressive phases of the illness for over four decades. The increased use of antidopaminergics in the treatment of this disorder and new in vivo neuroimaging and post-mortem studies makes it timely to review this theory. To do this, we conducted a systematic search for post-mortem, pharmacological, functional magnetic resonance and molecular imaging studies of dopamine function in bipolar disorder...
March 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28285610/the-clinical-course-and-interrelations-of-dementia-related-symptoms
#3
Miriam L Haaksma, Jeannie-Marie S Leoutsakos, Jonne A E Bremer, Pauline Aalten, Inez H G B Ramakers, Frans R J Verhey, Marcel G M Olde Rikkert, René J F Melis
BACKGROUND: Dementia is a neurodegenerative syndrome that interferes with multiple aspects of life, including cognition, daily functioning, and behavior. Despite the large heterogeneity in symptom development, these three domains are seldom studied simultaneously. This study investigates how trajectories of these domains are interrelated within individuals over time, and how they in turn are related to dementia severity and quality of life (QoL). METHODS: We used data from a longitudinal clinical cohort study, including 331 dementia patients...
March 13, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28260906/contemplating-stem-cell-therapy-for-epilepsy-induced-neuropsychiatric-symptoms
#4
REVIEW
Gautam Rao, Sherwin Mashkouri, David Aum, Paul Marcet, Cesar V Borlongan
Epilepsy is a debilitating disease that impacts millions of people worldwide. While unprovoked seizures characterize its cardinal symptom, an important aspect of epilepsy that remains to be addressed is the neuropsychiatric component. It has been documented for millennia in paintings and literature that those with epilepsy can suffer from bouts of aggression, depression, and other psychiatric ailments. Current treatments for epilepsy include the use of antiepileptic drugs and surgical resection. Antiepileptic drugs reduce the overall firing of the brain to mitigate the rate of seizure occurrence...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28260543/characteristics-and-health-conditions-of-a-group-of-nursing-home-patients-with-mental-physical-multimorbidity-the-mapping-study
#5
Anne M A van den Brink, Debby L Gerritsen, Miranda M H de Valk, Richard C Oude Voshaar, Raymond T C M Koopmans
BACKGROUND: Long-term care facilities have partly taken over the traditional asylum function of psychiatric hospitals and house an increasing group of patients with mental-physical multimorbidity (MPM). Little is known about the characteristics, behavior, and care dependency of these patients. This paper aims to describe these aspects. METHODS: Explorative, descriptive study among patients with MPM without dementia (n = 142), living in 17 geronto-psychiatric nursing home (NH) units across the Netherlands, stratified by those referred from mental healthcare services (MHS) and other healthcare services (OHS)...
March 6, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28256510/local-entrainment-of-oscillatory-activity-induced-by-direct-brain-stimulation-in-humans
#6
Julià L Amengual, Marine Vernet, Claude Adam, Antoni Valero-Cabré
In a quest for direct evidence of oscillation entrainment, we analyzed intracerebral electroencephalographic recordings obtained during intracranial electrical stimulation in a cohort of three medication-resistant epilepsy patients tested pre-surgically. Spectral analyses of non-epileptogenic cerebral sites stimulated directly with high frequency electrical bursts yielded episodic local enhancements of frequency-specific rhythmic activity, phase-locked to each individual pulse. These outcomes reveal an entrainment of physiological oscillatory activity within a frequency band dictated by the rhythm of the stimulation source...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28254868/resting-state-networks-as-simultaneously-measured-with-fmri-and-pet
#7
Alexandre Savio, Sarah Fünger, Masoud Tahmasian, Srinivas Rachakonda, Andrei Manoliu, Christian Sorg, Timo Grimmer, Vince Calhoun, Alexander Drzezga, Valentin Riedl, Igor Yakushev
Functional magnetic resonance imaging (fMRI) studies reported disruption of resting-state networks (RSNs) in a number of neuropsychiatric disorders. Positron emission tomography (PET) with (18)F-fluorodeoxyglucose (FDG) captures neuronal activity that is in steady state at a longer time span and is less dependent of neuro-vascular coupling. Here, we aimed to identify RSNs in FDG-PET data and compare their spatial pattern with those obtained from simultaneously acquired resting state fMRI data in 22 middle-aged healthy subjects...
March 2, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28248557/the-parkinson-s-active-living-pal-program
#8
London C Butterfield, Cynthia R Cimino, Robert Salazar, Juan Sanchez-Ramos, Dawn Bowers, Michael S Okun
BACKGROUND: Apathy, one of the most common neuropsychiatric symptoms in Parkinson's disease (PD), has been associated with reduced daily functioning, cognition, treatment compliance, quality of life, and increased caregiver burden and distress, among other outcomes. OBJECTIVES: The purpose of the present study was to develop and gather pilot data on the feasibility, acceptability, and efficacy of the Parkinson's Active Living (PAL) program, to our knowledge, the first behavioral treatment specifically designed to target apathy in patients with PD...
January 2017: Journal of Geriatric Psychiatry and Neurology
https://www.readbyqxmd.com/read/28238272/psychiatric-presentations-of-c9orf72-mutation-what-are-the-diagnostic-implications-for-clinicians
#9
Simon Ducharme, Sepideh Bajestan, Bradford C Dickerson, Valerie Voon
The C9orf72 mutation was identified as the most frequent genetic cause of frontotemporal dementia (FTD). In light of multiple reports of predominant psychiatric presentations of FTD secondary to C9orf72 mutation, the American Neuropsychiatric Association Committee on Research reviewed all studies on psychiatric aspects of this mutation to identify clinically relevant features for diagnosis. The most common psychiatric presentation is psychosis (21%-56%), with delusions, and/or multimodal hallucinations. Other presentations include late-onset mania and depression with cognitive impairment or catatonia...
February 27, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28230631/aerobic-exercise-and-its-effects-on-cognition-in-schizophrenia
#10
Peter Falkai, Berend Malchow, Andrea Schmitt
PURPOSE OF REVIEW: Schizophrenia is a severe neuropsychiatric disorder with incomplete remission because of negative and cognitive symptoms in a large proportion of patients. Antipsychotic medication is successful in modulating positive symptoms, but only to a lower extent negative symptoms including cognitive dysfunction. Therefore, development of innovative add-on treatment is highly needed. In this review, recent evidence from clinical studies reveals effects of aerobic exercise on cognitive deficits in schizophrenia patients...
February 21, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28203143/pregenual-anterior-cingulate-gyrus-involvement-in-spontaneous-social-interactions-in-primates-evidence-from-behavioral-pharmacological-neuropsychiatric-and-neurophysiological-findings
#11
Can Van Mao, Mariana F P Araujo, Hiroshi Nishimaru, Jumpei Matsumoto, Ahn Hai Tran, Etsuro Hori, Taketoshi Ono, Hisao Nishijo
The anterior cingulate cortex (ACC) has been implicated in different aspects of cognition and decision making, including social cognition. Several studies suggest that this region is actually formed by sub-regions concerned with distinct cognitive functions. The ACC is usually divided in its rostro-caudal axis, with the caudal ACC playing a major role in processing own actions, and the rostral ACC being related to social cognition. Recently, it has been suggested that the ACC can also be functionally divided in its dorso-ventral axis into ACC gyrus (ACCg) and ACC sulcus (ACCs), with the ACCg having a central role in processing social information...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28195385/practical-approaches-to-commencing-device-assisted-therapies-for-parkinson-s-disease-in-australia
#12
REVIEW
D R Williams, A H Evans, V S C Fung, M Hayes, R Iansek, T Kimber, J D O'Sullivan, C M Sue
BACKGROUND: In Australia 1% of individuals aged over 50 years have Parkinson's disease (PD). AIMS: Guidance for commencing device-assisted therapies (DATs) for PD in Australia was developed based on a review of European recommendations and their relevance to the local clinical setting. METHODS: An online survey and teleconference discussions were held by a group of eight local movement disorder experts to develop consensus. RESULTS: Referral to a movement disorder specialist and consideration of DAT is appropriate when motor fluctuations cause disability or reduced quality of life, response to treatment is inconsistent or motor fluctuations and dyskinesias require frequent treatment adjustment without apparent benefit and levodopa is required four or more times daily...
February 14, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28187857/adaptive-and-behavioral-changes-in-kynurenine-3-monooxygenase-knockout-mice-relevance-to-psychotic-disorders
#13
Sophie Erhardt, Ana Pocivavsek, Mariaelena Repici, Xi-Cong Liu, Sophie Imbeault, Daniel C Maddison, Marian A R Thomas, Joshua L Smalley, Markus K Larsson, Paul J Muchowski, Flaviano Giorgini, Robert Schwarcz
BACKGROUND: Kynurenine 3-monooxygenase converts kynurenine to 3-hydroxykynurenine, and its inhibition shunts the kynurenine pathway-which is implicated as dysfunctional in various psychiatric disorders-toward enhanced synthesis of kynurenic acid, an antagonist of both α7 nicotinic acetylcholine and N-methyl-D-aspartate receptors. Possibly as a result of reduced kynurenine 3-monooxygenase activity, elevated central nervous system levels of kynurenic acid have been found in patients with psychotic disorders, including schizophrenia...
December 16, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/28170220/classics-in-chemical-neuroscience-haloperidol
#14
Marshall W Tyler, Josefa Zaldivar-Diez, Stephen J Haggarty
The discovery of haloperidol catalyzed a breakthrough in our understanding of the biochemical basis of schizophrenia, improved the treatment of psychosis, and facilitated deinstitutionalization. In doing so, it solidified the role for chemical neuroscience as a means to elucidate the molecular underpinnings of complex neuropsychiatric disorders. In this Review, we will cover aspects of haloperidol's synthesis, manufacturing, metabolism, pharmacology, approved and off-label indications, and adverse effects. We will also convey the fascinating history of this classic molecule and the influence that it has had on the evolution of neuropsychopharmacology and neuroscience...
February 15, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28131182/neuropsychiatric-symptoms-behavioural-disorders-and-quality-of-life-in-parkinson-s-disease
#15
REVIEW
Roberta Balestrino, Pablo Martinez-Martin
Parkinson's disease is a complex neurodegenerative disorder characterized by motor and non-motor symptoms, with neuropsychiatric manifestations among the most frequent non-motor symptoms. Health-related quality of life is a patient-reported outcome that reflects the impact of the disease on physical, mental, and social wellbeing, and on other aspects of patient' life. Although older studies on health-related quality of life in Parkinson's disease mainly investigated the role of the motor impairment, recent research focused on non-motor symptoms has highlighted the critical role that behavioural disturbances due to neuropsychiatric symptoms play in determining health related quality of life...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28109579/reprint-of-neuropsychiatric-symptoms-behavioural-disorders-and-quality-of-life-in-parkinson-s-disease
#16
REVIEW
Roberta Balestrino, Pablo Martinez-Martin
Parkinson's disease is a complex neurodegenerative disorder characterized by motor and non-motor symptoms, with neuropsychiatric manifestations among the most frequent non-motor symptoms. Health-related quality of life is a patient-reported outcome that reflects the impact of the disease on physical, mental, and social wellbeing, and on other aspects of patient' life. Although older studies on health-related quality of life in Parkinson's disease mainly investigated the role of the motor impairment, recent research focused on non-motor symptoms has highlighted the critical role that behavioural disturbances due to neuropsychiatric symptoms play in determining health related quality of life...
March 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28087735/relationships-linking-emotional-motor-cognitive-and-gabaergic-dysfunctions-in-dystrophin-deficient-mdx-mice
#17
Cyrille Vaillend, Rémi Chaussenot
Alterations in the Duchenne muscular dystrophy (DMD) gene have been associated with enhanced stress reactivity in vertebrate species, suggesting a role for brain dystrophin in fear-related behavioral and cognitive processes. Because the loss of dystrophin (Dp427) reduces clustering of central GABAA receptors, it is suspected that local inhibitory tuning and modulation of neuronal excitability are perturbed in a distributed brain circuit that normally controls such critical behavioral functions. In this study we undertook a large-scale behavioral study to evaluate fear-related behavioral disturbances in dystrophin-deficient mdx mice...
January 13, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28060309/symmetric-bihemispheric-postmortem-brain-cutting-to-study-healthy-and-pathological-brain-conditions-in-humans
#18
Diego Iacono, Maria Geraci-Erck, Hui Peng, John Paul Bouffard
Neuropathologists, at times, feel intimidated by the amount of knowledge needed to generate definitive diagnoses for complex neuropsychiatric phenomena described in those patients for whom a brain autopsy has been requested. Although the advancements of biomedical sciences and neuroimaging have revolutionized the neuropsychiatric field, they have also generated the misleading idea that brain autopsies have only a confirmatory value. This false idea created a drastic reduction of autopsy rates and, consequently, a reduced possibility to perform more detailed and extensive neuropathological investigations, which are necessary to comprehend numerous normal and pathological aspects yet unknown of the human brain...
December 18, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28017739/mrs-studies-of-neuroenergetics-and-glutamate-glutamine-exchange-in-rats-extensions-to-hyperammonemic-models
#19
Bernard Lanz, Veronika Rackayova, Olivier Braissant, Cristina Cudalbu
In vivo Magnetic Resonance Spectroscopy is a useful tool to characterize brain biochemistry as well as its alteration in a large number of major central nervous system diseases. The present review will focus on the study of the glutamate-glutamine cycle, an important biochemical pathway in excitatory neurotransmission, analyzed using in vivo MRS of different accessible nuclei: (1)H, (13)C, (15)N and (31)P. The different methodological aspects of data acquisition, processing and absolute quantification of the MRS data for each nucleus will be presented, as well as the description of the mathematic modeling approach to interpret the MRS measurements in terms of biochemical kinetics...
December 22, 2016: Analytical Biochemistry
https://www.readbyqxmd.com/read/28001431/the-relationship-between-family-functioning-and-caregiving-appraisal-of-dementia-family-caregivers-caregiving-self-efficacy-as-a-mediator
#20
Hsin-Yi Liu, Lian-Hua Huang
OBJECTIVES: The aim of this study was to explore caregiving self-efficacy as a mediator for the association between family functioning and caregiving appraisal of dementia family caregivers in Taiwan. METHOD: This study adopted a cross-sectional correlational design. Purposive sampling was used to recruit 115 dyads of dementia patients and family caregivers from the outpatient neurological clinics of two hospitals in northern Taiwan. Data were gathered through interviews with a structured questionnaire, which included demographic characteristics for caregivers and patients, family functioning, caregiving self-efficacy, as well as positive and negative aspects of caregiving appraisal...
December 21, 2016: Aging & Mental Health
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