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https://www.readbyqxmd.com/read/28320196/extended-timed-up-and-go-assessment-as-a-clinical-indicator-of-cognitive-state-in-parkinson-s-disease
#1
Tess Evans, Alexa Jefferson, Michelle Byrnes, Sue Walters, Soumya Ghosh, Frank L Mastaglia, Brian Power, Ryan S Anderton
OBJECTIVE: To evaluate a modified extended Timed Up and Go (extended-TUG) assessment against a panel of validated clinical assessments, as an indicator of Parkinson's disease (PD) severity and cognitive impairment. METHODS: Eighty-seven participants with idiopathic PD were sequentially recruited from a Movement Disorders Clinic. An extended-TUG assessment was employed which required participants to stand from a seated position, walk in a straight line for 7m, turn 180° and then return to the start, in a seated position...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320171/stroke-severity-predicts-poststroke-delirium-and-its-association-with-dementia-longitudinal-observation-from-a-low-income-setting
#2
Akin Ojagbemi, Mayowa Owolabi, Toyin Bello, Olusegun Baiyewu
OBJECTIVE: The effect of delirium on stroke outcome has not been quantified in sub-Saharan Africa. We investigated the prevalence of delirium occurring within one week of stroke in Nigerian survivors and its association with dementia and mortality at 3months. METHODS: Delirium was ascertained after repeated assessments within one week of stroke using the Confusion Assessment Method. Demographic and clinical characteristics, stroke severity, current and pre-morbid cognitive functioning were also assessed...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320130/spg2-mimicking-multiple-sclerosis-in-a-family-identified-using-next-generation-sequencing
#3
Anna Rubegni, Carla Battisti, Alessandra Tessa, Alfonso Cerase, Stefano Doccini, Alessandro Malandrini, Filippo M Santorelli, Antonio Federico
Several single gene disorders can potentially be overlooked in the differential diagnostic evaluation of patients with multiple sclerosis (MS). Pelizaeus-Merzbacher disease and spastic paraplegia type 2 are allelic X-linked disorders associated with defective myelination of the central nervous system and mutations in PLP1. Neurological symptoms are occasionally observed in female carriers of these mutations. Two women - the proposita (Pt1) and her mother (Pt2) - reported walking difficulties since adolescence and showed progressive cognitive decline...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319789/group-schema-therapy-for-personality-disorders-a-pilot-study-for-implementation-in-acute-psychiatric-in-patient-settings
#4
Igor Nenadić, Sina Lamberth, Neele Reiss
Group schema therapy (GST) has been proposed as a novel long-term treatment programme for borderline and cluster C personality disorders. We implemented a short-term GST programme (12-15 sessions, based on the manual by Farrell and Shaw (2012), including both cognitive / behavioural and experiential interventions for in-patients (n=9) with either borderline or cluster C personality disorders (and axis I co-morbidities) treated in a (sub)acute psychiatric in-patient setting. We evaluated pre- and post-treatment self-report of maladaptive and adaptive schema modes (using the SMI) and early maladaptive schemas (YSQ-3), as well as overall symptom severity (brief symptom check list, BSCL-53-S), patient satisfaction (ZUF-8) and group climate and coherence (GCQ-S)...
February 3, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28319690/depression-and-executive-functioning-deficits-predict-poor-occupational-functioning-in-a-large-longitudinal-sample-with-bipolar-disorder
#5
Lisa A O'Donnell, Patricia J Deldin, Andrew Grogan-Kaylor, Melvin G McInnis, Jenna Weintraub, Kelly A Ryan, Joseph A Himle
BACKGROUND: Bipolar Disorder (BD) is characterized by impairments in psychosocial functioning with occupational disability being one of the most significant. Depression and neurocognitive deficits are features of BD most commonly associated with poor occupational functioning (OF). Few studies have examined these features over an extended period of time focusing on distinct aspects of work functioning. METHODS: This longitudinal study included 273 adults with bipolar I disorder (N=173), bipolar II disorder (N=69), and bipolar not otherwise specified (N=31)...
March 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28318835/improvement-in-mismatch-negativity-generation-during-d-serine-treatment-in-schizophrenia-correlation-with-symptoms
#6
Joshua T Kantrowitz, Michael L Epstein, Migyung Lee, Nayla Lehrfeld, Karen A Nolan, Constance Shope, Eva Petkova, Gail Silipo, Daniel C Javitt
BACKGROUND: Deficits in N-methyl-d-aspartate-type (NMDAR) function contribute to symptoms and cognitive dysfunction in schizophrenia. The efficacy of NMDAR agonists in the treatment of persistent symptoms of schizophrenia has been variable, potentially reflecting limitations in functional target engagement. We recently demonstrated significant improvement in auditory mismatch negativity (MMN) with once-weekly treatment with d-serine, a naturally occurring NMDAR glycine-site agonist. This study investigates effects of continuous (daily) NMDAR agonists in schizophrenia/schizoaffective disorder...
March 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28318543/obesity-induced-neuroinflammation-beyond-the-hypothalamus
#7
REVIEW
Owein Guillemot-Legris, Giulio G Muccioli
Obesity is now a worldwide health issue. Far from being limited to weight gain, obesity is generally associated with low-grade inflammation and with a cluster of disorders collectively known as the 'metabolic syndrome'. When considering obesity and the subsequent neuroinflammation, the focus was long set on the hypothalamus. More recently, obesity-derived neuroinflammation has been shown to affect other brain structures such as the hippocampus, cortex, brainstem, or amygdala. Furthermore, obesity has been associated with increased occurrence of central disorders such as depression and impaired cognitive function...
March 16, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28318073/self-and-parent-reported-executive-problems-in-adolescents-with-type-1-diabetes-are-associated-with-poor-metabolic-control-and-low-physical-activity
#8
Charlotte Nylander, Ylva Tindberg, Josephine Haas, Ingemar Swenne, Torun Torbjörnsdotter, Karin Åkesson, Eva Örtqvist, Jan Gustafsson, Elisabeth Fernell
BACKGROUND: Management of diabetes is demanding and requires efficient cognitive skills, especially in the domain of executive functioning. However, the impact of impaired executive functions on diabetes control has been studied to a limited extent. The aim of the study is to investigate the association between executive problems and diabetes control in adolescents with type 1 diabetes. MATERIALS AND METHODS: Two hundred and forty-one of 477 (51%) of 12- to 18-year-old adolescents, with a diabetes duration of >2 years in Stockholm, Uppsala, and Jönköping participated...
March 20, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28317498/school-achievement-iq-and-risk-of-alcohol-use-disorder-a-prospective-co-relative-analysis-in-a-swedish-national-cohort
#9
Kenneth S Kendler, Henrik Ohlsson, Jan Sundquist, Kristina Sundquist
OBJECTIVE: Most studies suggest that poor cognitive functioning in adolescence increases risk of alcohol use disorders (AUDs). We seek to clarify the causes of this association. METHOD: In Swedish individuals born from 1972 to 1990 in whom cognitive functioning was assessed by school achievement at age 16 years (males and females, N = 1,796,048) and by IQ at ages 18-20 (males, N = 554,644), we examined the hazard ratio (HR) for AUD ascertained from public registries...
March 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28317488/association-between-periodontal-health-status-and-cognitive-abilities-the-role-of-cytokine-profile-and-systemic-inflammation
#10
Marta Sochocka, Maciej Sobczyński, Aleksandra Sender-Janeczek, Katarzyna Zwolińska, Olga Błachowicz, Tomasz Tomczyk, Marek Ziętek, Jerzy Leszek
BACKGROUND: Contemporary neurobiology, periodontal medicine, and immunology are now focusing on the relationship between chronic periodontitis and systemic diseases, that also include Alzheimer's disease (AD). However a causative relationship between dementia and periodontitis has yet to be confirmed. OBJECTIVE: The aim of the study was to determine whether periodontal health status and cognitive abilities are correlated with the relative changes in systemic measures of pro- and anti-inflammatory cytokines as a reflection of systemic inflammation...
March 16, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28317485/defective-insulin-signalling-mediated-by-inflammation-connects-obesity-to-alzheimer-disease-relevant-pharmacological-therapies-and-preventive-dietary-interventions
#11
Arantxa Rodriguez-Casado, Adolfo Toledano-Díaz, Adolfo Toledano
Recent evidence suggests that obesity, besides being a risk factor for cardiovascular events, also increases the risk of Alzheimer's disease. Insulin resistance is common in all cases of obesity and appears to be the linkage between both diseases. Obesity, often associated with excessive fat and sugar intake, represents a preclinical stage toward insulin resistance during which nutrition intervention is likely to have maximum effect. In this way, healthy lifestyles lifetime to prevent obesity-related modifiable risk factors such as inflammation, oxidative stress and metabolic disorders could be simultaneously beneficial for preserving cognition and controlling the Alzheimer's...
March 16, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28316273/feasibility-and-acceptability-of-brief-cognitive-remediation-targeting-metacognition-in-acute-inpatients-with-psychosis-a-case-series
#12
Dimosthenis Tsapekos, Rumina Taylor, Matteo Cella
Cognitive remediation (CR) is an intensive intervention targeting cognitive impairment with the aim of improving functioning in people with psychotic disorders. Shorter forms of CR based on metacognition and targeting awareness of cognitive problems may be more appropriate for acute inpatient settings where time is limited. The objective of the study was to evaluate the feasibility and acceptability of a new brief course of CR targeting cognitive and metacognitive difficulties within an acute inpatient psychiatric setting...
March 20, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28316115/gabaa-and-gabab-receptor-dysregulation-in-superior-frontal-cortex-of-subjects-with-schizophrenia-and-bipolar-disorder
#13
S Hossein Fatemi, Timothy D Folsom, Paul D Thuras
Schizophrenia and bipolar disorder are complex psychiatric disorders that affect millions of people worldwide. Evidence from gene association and postmortem studies has identified abnormalities of the gamma-aminobutyric acid (GABA) signaling system in both disorders. Abnormal GABAergic signaling and transmission could contribute to the symptomatology of these disorders, potentially through impaired gamma oscillations which normally occur during cognitive processing. In the current study, we examined the protein expression of 14 GABAA and two GABAB receptor subunits in the superior frontal cortex of subjects with schizophrenia, bipolar disorder, and healthy controls...
March 18, 2017: Synapse
https://www.readbyqxmd.com/read/28315846/risk-factors-for-early-psychosis-in-pd-insights-from-the-parkinson-s-progression-markers-initiative
#14
Dominic H Ffytche, Joana B Pereira, Clive Ballard, K Ray Chaudhuri, Daniel Weintraub, Dag Aarsland
BACKGROUND: Parkinson's Disease (PD) psychosis refers to the spectrum of illusions, formed hallucinations and delusions that occur in PD. Visual hallucinations and illusions are thought to be caused by specific cognitive and higher visual function deficits and patients who develop such symptoms early in the disease course have greater rates of cognitive decline and progression to dementia. To date, no studies have investigated whether such deficits are found prior to the onset of PD psychosis...
April 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28315845/icarus-study-prevalence-and-clinical-features-of-impulse-control-disorders-in-parkinson-s-disease
#15
Angelo Antonini, Paolo Barone, Ubaldo Bonuccelli, Karin Annoni, Mahnaz Asgharnejad, Paolo Stanzione
BACKGROUND: Impulse control disorders/other compulsive behaviours ('ICD behaviours') occur in Parkinson's disease (PD), but prospective studies are scarce, and prevalence and clinical characteristics of patients are insufficiently defined. OBJECTIVES: To assess the presence of ICD behaviours over a 2-year period, and evaluate patients' clinical characteristics. METHODS: A prospective, non-interventional, multicentre study (ICARUS (Impulse Control disorders And the association of neuRopsychiatric symptoms, cognition and qUality of life in ParkinSon disease); SP0990) in treated Italian PD outpatients...
April 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28315722/risk-mitigation-for-children-exposed-to-drugs-during-gestation-a-critical-role-for-animal-preclinical-behavioral-testing
#16
REVIEW
Irving Zucker
Many drugs with unknown safety profiles are administered to pregnant women, placing their offspring at risk. I assessed whether behavioral outcomes for children exposed during gestation to antidepressants, anxiolytics, anti-seizure, anti-nausea and sedative medications can be predicted by more extensive animal studies than are part of the FDA approval process. Human plus rodent data were available for only 8 of 33 CNS-active drugs examined. Similar behavioral and cognitive deficits, including autism and ADHD emerged in human offspring and in animal models of these disorders after exposure to fluoxetine, valproic acid, carbamazepine, phenytoin, phenobarbital, acetaminophen and ibuprofen...
March 15, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28315409/in-vivo-tau-pet-imaging-in-dementia-pathophysiology-radiotracer-quantification-and-a-systematic-review-of-clinical-findings
#17
REVIEW
Benjamin Hall, Elijah Mak, Simon Cervenka, Franklin I Aigbirhio, James B Rowe, John T O'Brien
In addition to the deposition of β-amyloid plaques, neurofibrillary tangles composed of aggregated hyperphosphorylated tau are one of the pathological hallmarks of Alzheimer's disease and other neurodegenerative disorders. Until now, our understanding about the natural history and topography of tau deposition has only been based on post-mortem and cerebrospinal fluid studies, and evidence continues to implicate tau as a central driver of downstream neurodegenerative processes and cognitive decline. Recently, it has become possible to assess the regional distribution and severity of tau burden in vivo with the development of novel radiotracers for positron emission tomography (PET) imaging...
March 14, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28315366/amygdala-functional-connectivity-is-associated-with-locus-of-control-in-the-context-of-cognitive-aging
#18
Ping Ren, Mia Anthony, Benjamin P Chapman, Kathi Heffner, Feng Lin
Locus of control (LOC) measures the extent to which individuals perceive control over their lives. Those with a more "internal" LOC feel self-sufficient and able to determine important aspects of their own future, while those with a more "external" LOC feel that their lives are governed by events beyond their control. Reduced internal LOC and increased external LOC have been found in cognitive disorders, but the neural substrates of these control perceptions are yet unknown. In the present study, we explored the relationship between amygdala functional connectivity and LOC in 18 amnestic mild cognitive impairment (MCI) and age-, sex-, and education-matched, 22 cognitively healthy controls (HC)...
March 14, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28315336/streptozotocin-produces-oxidative-stress-inflammation-and-decreases-bdnf-concentrations-to-induce-apoptosis-of-rin5f-cells-and-type-2-diabetes-mellitus-in-wistar-rats
#19
Siresha Bathina, Nanduri Srinivas, Undurti N Das
BACKGROUND: Neurodegenerative disorders, such as deficits in learning, memory and cognition and Alzheimer's disease are associated with diabetes mellitus. Brain-derived neurotrophic factor (BDNF) is a neurotrophic factor and is known to possess anti-obesity, anti-diabetic actions and is believed to have a role in memory and Alzheimer's disease. OBJECTIVE: To investigate whether STZ can reduce BDNF production by rat insulinoma (RIN5F) cells in vitro and decrease BDNF levels in the pancreas, liver and brain in vivo...
March 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28315270/sigma-1-receptor-agonists-and-their-clinical-implications-in-neuropsychiatric-disorders
#20
Yakup Albayrak, Kenji Hashimoto
Accumulating evidence suggests that sigma-1 receptors play a role in the pathophysiology of neuropsychiatric diseases, as well as in the mechanisms of some selective serotonin reuptake inhibitors (SSRIs). Among the SSRIs, the order of affinity for sigma-1 receptors is as follows: fluvoxamine > sertraline > fluoxetine > escitalopram > citalopram > paroxetine. Some SSRIs (e.g., fluvoxamine, fluoxetine and escitalopram) and other drugs (donepezil , ifenprodil , dehydroepiandeterone (DHEA)) potentiate nerve-growth factor (NGF)-induced neurite outgrowth in PC12 cells, and these effects could be antagonized by the selective sigma-1 receptor antagonist NE-100...
2017: Advances in Experimental Medicine and Biology
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