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https://www.readbyqxmd.com/read/28531783/prototypical-versus-contemporary-mediterranean-diet
#1
W Rizza, L De Gara, R Antonelli Incalzi, C Pedone
BACKGROUND AND AIMS: To investigate the evolution of the Mediterranean Diet (MD) in a delimited area of Southern Italy, by comparing the diet adopted 60-70 years ago (Prototypical Mediterranean Diet, PMD) with the contemporary one (Contemporary Mediterranean Diet, CMD), and to verify to what extent they fitted the recommendations of the Italian and the USDA dietary guidelines. METHODS: We recruited a total of 106 participants, divided in two groups. PMD group included 52 women aged >80 years, with a good cognitive function and full independence in basic and instrumental activities of daily living...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531243/increased-postural-sway-during-quiet-stance-as-a-risk-factor-for-prospective-falls-in-community-dwelling-elderly-individuals
#2
Jonas Johansson, Anna Nordström, Yngve Gustafson, Göran Westling, Peter Nordström
Objective: fall-related injuries constitute major health risks in older individuals, and these risks are projected to increase in parallel with increasing human longevity. Impaired postural stability is a potential risk factor related to falls, although the evidence is inconclusive, partly due to the lack of prospective studies. This study aimed to investigate how objective measures of postural sway predict incident falls. Design, setting and participants: this prospectively observational study included 1,877 community-dwelling individuals aged 70 years who participated in the Healthy Ageing Initiative between June 2012 and December 2015...
May 22, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28526009/measuring-health-literacy-among-low-literate-people-an-exploratory-feasibility-study-with-the-hls-eu-questionnaire
#3
Hannelore Storms, Neree Claes, Bert Aertgeerts, Stephan Van den Broucke
BACKGROUND: Health literacy (HL) is defined as necessary competencies to make well-informed decisions. As patients' decision making is a key element of patient-centered health care, insight in patients' HL might help healthcare professionals to organize their care accordingly. This is particularly true for people in a vulnerable situation, potentially with limited HL, who are, for instance, at greater risk of having limited access to care [1, 2]. As HL correlates with education, instruments should allow inclusion of low literate people...
May 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28522374/population-pharmacokinetics-of-nnz-2566-in-healthy-subjects
#4
Sean P Oosterholt, Joseph Horrigan, Nancy Jones, Larry Glass, Oscar Della Pasqua
NNZ-2566 is a novel, small molecule being developed as a treatment for cognitive impairment in different CNS conditions, including Rett and Fragile-X syndrome, both of which are associated with moderate to severe neurodevelopmental disorder. In current study we characterise the population pharmacokinetics of NNZ-2566 after administration of single and repeated ascending doses to healthy subjects. A meta-analytical approach was used to analyse pharmacokinetic data from 3 different studies, in which a total of 61 healthy subjects (median age 23years, range 19 to 38) were treated with NNZ-2566...
May 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28522182/hodotopy-neuroplasticity-and-diffuse-gliomas
#5
H Duffau
BACKGROUND AND PURPOSE: The historical approach in neurooncology is used to mainly investigate the tumor, with very few considerations regarding the brain itself. Nonetheless, to select the best personalized therapeutic management for each patient with a diffuse glioma, i.e. to optimize the "onco-functional balance", the brain reaction induced by glioma growth and migration should be studied. Indeed, due to strong interactions between the glioma and the brain, cerebral adaptive phenomena often occur in order to maintain neurological and cognitive functions, as well as to compensate glioma spreading...
May 15, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28521611/sgpl1-sphingosine-phosphate-lyase-1-modulates-neuronal-autophagy-via-phosphatidylethanolamine-production
#6
Daniel N Mitroi, Indulekha Karunakaran, Markus Gräler, Julie D Saba, Dan Ehninger, María Dolores Ledesma, Gerhild van Echten-Deckert
Macroautophagy/autophagy defects have been identified as critical factors underlying the pathogenesis of neurodegenerative diseases. The roles of the bioactive signaling lipid sphingosine-1-phosphate (S1P) and its catabolic enzyme SGPL1/SPL (sphingosine phosphate lyase 1) in autophagy are increasingly recognized. Here we provide in vitro and in vivo evidence for a previously unidentified route through which SGPL1 modulates autophagy in neurons. SGPL1 cleaves S1P into ethanolamine phosphate, which is directed toward the synthesis of phosphatidylethanolamine (PE) that anchors LC3-I to phagophore membranes in the form of LC3-II...
May 4, 2017: Autophagy
https://www.readbyqxmd.com/read/28516474/relationship-between-pain-and-motor-and-non-motor-symptoms-in-parkinson-s-disease
#7
G Defazio, A Antonini, M Tinazzi, A F Gigante, S Pietracupa, R Pellicciari, M Bloise, R Bacchin, A Marcante, G Fabbrini, A Berardelli
BACKGROUND AND PURPOSE: Although female gender, depressive symptoms and medical conditions predisposing to pain are more common in patients with Parkinson's disease (PD) with pain, no study has yet explored the relationship between pain and other non-motor symptoms (NMS). METHODS: A total of 321 consecutive patients with PD [190 men/131 women aged 68.3 (SD 9.2) years] attending four Italian movement disorder clinics were studied. Demographic/clinical data were obtained by a standardized interview and the NMS scale...
May 18, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28516241/innate-immunity-in-alzheimer-s-disease-the-relevance-of-animal-models
#8
REVIEW
Diana K Franco Bocanegra, James A R Nicoll, Delphine Boche
The mouse is one of the organisms most widely used as an animal model in biomedical research, due to the particular ease with which it can be handled and reproduced in laboratory. As a member of the mammalian class, mice share with humans many features regarding metabolic pathways, cell morphology and anatomy. However, important biological differences between mice and humans exist and must be taken into consideration when interpreting research results, to properly translate evidence from experimental studies into information that can be useful for human disease prevention and/or treatment...
May 17, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28513774/hippocampal-overexpression-of-down-syndrome-cell-adhesion-molecule-in-amyloid-precursor-protein-transgenic-mice
#9
Y L Jia, Z X Fu, B H Zhang, Y J Jia
Down syndrome cell adhesion molecule (DSCAM) is located within the Down syndrome critical region of chromosome 21. DSCAM is a broadly expressed neurodevelopmental protein involved in synaptogenesis, neurite outgrowth, and axon guidance. We previously demonstrated DSCAM overexpression in the cortex of amyloid precursor protein (APP) transgenic mice, suggesting possible regulatory interactions between APP and DSCAM. APP mice exhibit deficits in hippocampus-dependent learning and memory. In this preliminary study, we examined age-related changes in DSCAM expression within the hippocampus in 16 APP transgenic mice (1, 3, 6 and 12 months old)...
May 15, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28511982/characteristic-and-intermingled-neocortical-circuits-encode-different-visual-object-discriminations
#10
Guo-Rong Zhang, Hua Zhao, Nathan Cook, Michael Svestka, Eui M Choi, Mary Jan, Robert G Cook, Alfred I Geller
Synaptic plasticity and neural network theories hypothesize that the essential information for advanced cognitive tasks is encoded in specific circuits and neurons within distributed neocortical networks. However, these circuits are incompletely characterized, and we do not know if a specific discrimination is encoded in characteristic circuits among multiple animals. Here, we determined the spatial distribution of active neurons for a circuit that encodes some of the essential information for a cognitive task...
May 13, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28508716/neural-correlates-of-individual-differences-in-fixation-duration-during-natural-reading
#11
John M Henderson, Wonil Choi, Steven G Luke, Joseph Schmidt
Reading requires integration of language and cognitive processes with attention and eye movement control. Individuals differ in their reading ability, but little is known about the neurocognitive processes associated with these individual differences. To investigate this issue, we combined eyetracking and fMRI, simultaneously recording eye movements and BOLD activity while subjects read text passages. We found that the variability and skew of fixation duration distributions across individuals, as assessed by ex-Gaussian analyses, decreased with increasing neural activity in regions associated with the cortical eye movement control network (Left FEF, Left IPS, Left IFG, and Right IFG)...
May 16, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28508545/comparison-of-joint-modeling-and-landmarking-for-dynamic-prediction-under-an-illness-death-model
#12
Krithika Suresh, Jeremy M G Taylor, Daniel E Spratt, Stephanie Daignault, Alexander Tsodikov
Dynamic prediction incorporates time-dependent marker information accrued during follow-up to improve personalized survival prediction probabilities. At any follow-up, or "landmark", time, the residual time distribution for an individual, conditional on their updated marker values, can be used to produce a dynamic prediction. To satisfy a consistency condition that links dynamic predictions at different time points, the residual time distribution must follow from a prediction function that models the joint distribution of the marker process and time to failure, such as a joint model...
May 16, 2017: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/28507319/longitudinal-changes-of-tau-pet-imaging-in-relation-to-hypometabolism-in-prodromal-and-alzheimer-s-disease-dementia
#13
K Chiotis, L Saint-Aubert, E Rodriguez-Vieitez, A Leuzy, O Almkvist, I Savitcheva, M Jonasson, M Lubberink, A Wall, G Antoni, A Nordberg
The development of tau-specific positron emission tomography (PET) tracers allows imaging in vivo the regional load of tau pathology in Alzheimer's disease (AD) and other tauopathies. Eighteen patients with baseline investigations enroled in a 17-month follow-up study, including 16 with AD (10 had mild cognitive impairment and a positive amyloid PET scan, that is, prodromal AD, and six had AD dementia) and two with corticobasal syndrome. All patients underwent PET scans with [(18)F]THK5317 (tau deposition) and [(18)F]FDG (glucose metabolism) at baseline and follow-up, neuropsychological assessment at baseline and follow-up and a scan with [(11)C]PIB (amyloid-β deposition) at baseline only...
May 16, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28507318/cerebellar-volume-and-cerebellocerebral-structural-covariance-in-schizophrenia-a-multisite-mega-analysis-of-983-patients-and-1349-healthy-controls
#14
T Moberget, N T Doan, D Alnæs, T Kaufmann, A Córdova-Palomera, T V Lagerberg, J Diedrichsen, E Schwarz, M Zink, S Eisenacher, P Kirsch, E G Jönsson, H Fatouros-Bergman, L Flyckt, G Pergola, T Quarto, A Bertolino, D Barch, A Meyer-Lindenberg, I Agartz, O A Andreassen, L T Westlye
Although cerebellar involvement across a wide range of cognitive and neuropsychiatric phenotypes is increasingly being recognized, previous large-scale studies in schizophrenia (SZ) have primarily focused on supratentorial structures. Hence, the across-sample reproducibility, regional distribution, associations with cerebrocortical morphology and effect sizes of cerebellar relative to cerebral morphological differences in SZ are unknown. We addressed these questions in 983 patients with SZ spectrum disorders and 1349 healthy controls (HCs) from 14 international samples, using state-of-the-art image analysis pipelines optimized for both the cerebellum and the cerebrum...
May 16, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28507300/minimum-toe-clearance-probing-the-neural-control-of-locomotion
#15
Tim Killeen, Christopher S Easthope, László Demkó, Linard Filli, Lilla Lőrincz, Michael Linnebank, Armin Curt, Björn Zörner, Marc Bolliger
Minimum toe clearance (MTC) occurs during a highly dynamic phase of the gait cycle and is associated with the highest risk of unintentional contact with obstacles or the ground. Age, cognitive function, attention and visual feedback affect foot clearance but how these factors interact to influence MTC control is not fully understood. We measured MTC in 121 healthy individuals aged 20-80 under four treadmill walking conditions; normal walking, lower visual field restriction and two Stroop colour/word naming tasks of two difficulty levels...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28506658/-cognitive-neuroscience-of-aging-explanatory-models
#16
Fabrissio Grandi, Javier Tirapu Ustárroz
The aim of the cognitive neuroscience of aging is the study of brain activity and the cognitive processes associated with age. In order to understand the dynamics of neurocognitive activity in older people, the present review highlights four explanatory models. The first one (HAROLD) highlights brain bilaterality, mainly in the pre-frontal cortex. The second paradigm (PASA) places special emphasis on neuronal polarisation (anterior-posterior). The third model (CRUNCH) relates the manifest activity of the brain to the level of complexity of the task...
May 12, 2017: Revista Española de Geriatría y Gerontología
https://www.readbyqxmd.com/read/28506292/normobaric-hypoxia-overnight-impairs-cognitive-reaction-time
#17
Stephan Pramsohler, Stefan Wimmer, Martin Kopp, Hannes Gatterer, Martin Faulhaber, Martin Burtscher, Nikolaus Cristoph Netzer
BACKGROUND: Impaired reaction time in patients suffering from hypoxia during sleep, caused by sleep breathing disorders, is a well-described phenomenon. High altitude sleep is known to induce periodic breathing with central apneas and oxygen desaturations, even in perfectly healthy subjects. However, deficits in reaction time in mountaineers or workers after just some nights of hypoxia exposure are not sufficiently explored. Therefore, we aimed to investigate the impact of sleep in a normobaric hypoxic environment on reaction time divided by its cognitive and motoric components...
May 15, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28503542/role-of-physical-activity-in-mortality-prediction-in-elderly-hospice-patients
#18
Hye-Sang Park, Kyu-Tae Lee, Tae-Woon Kim
The prediction of life-expectancy in terminally ill patients is important both for medical and social reasons but it is widely recognized as being inaccurate. The aim of this study was to investigate the mortality predictors and indicators of life extension among elderly patients in a hospice service center. In order to determine the mortality predictors, we investigated the relationship between patients' cognitive status using the Korean-Mini Mental State Examination & Global Deterioration Scale (K-MMSE & GDS), the patient's physical function using the instrumental Activities of Daily Living (ADL) score, and the patient's blood component values...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28503462/predictors-for-depressive-mood-in-geriatric-patients-after-traumatic-brain-injury-a-retrospective-cross-sectional-study
#19
Je Kyung Kim, Na Young Kim, Yong Wook Kim
OBJECTIVE: To identify predictors for depressive mood in geriatric patients after traumatic brain injury (TBI). METHODS: A retrospective review of patients' medical charts was performed in TBI patients who were older than 60 years and referred to the Department of Rehabilitation Medicine at Severance Hospital in 2002-2016. The patients were classified into two groups based on the Geriatric Depression Scale (GDS): non-depressive group (0≤GDS≤16) and depressive group (17≤GDS≤30)...
April 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28503250/localizing-sources-of-brain-disease-progression-with-network-diffusion-model
#20
Chenhui Hu, Xue Hua, Jun Ying, Paul M Thompson, Georges E Fakhri, Quanzheng Li
Pinpointing the sources of dementia is crucial to the effective treatment of neurodegenerative diseases. In this paper, we propose a diffusion model with impulsive sources over the brain connectivity network to model the progression of brain atrophy. To reliably estimate the atrophy sources, we impose sparse regularization on the source distribution and solve the inverse problem with an efficient gradient descent method. We localize the possible origins of Alzheimer's disease (AD) based on a large set of repeated magnetic resonance imaging (MRI) scans in Alzheimer's Disease Neuroimaging Initiative (ADNI) database...
October 2016: IEEE Journal of Selected Topics in Signal Processing
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