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Journal of Neural Transmission

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https://www.readbyqxmd.com/read/28516241/innate-immunity-in-alzheimer-s-disease-the-relevance-of-animal-models
#1
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/28516240/in-vivo-pet-imaging-of-neuroinflammation-in-alzheimer-s-disease
#2
REVIEW
Julien Lagarde, Marie Sarazin, Michel Bottlaender
Increasing evidence suggests that neuroinflammation contributes to the pathophysiology of many neurodegenerative diseases, especially Alzheimer's disease (AD). Molecular imaging by PET may be a useful tool to assess neuroinflammation in vivo, thus helping to decipher the complex role of inflammatory processes in the pathophysiology of neurodegenerative diseases and providing a potential means of monitoring the effect of new therapeutic approaches. For this objective, the main target of PET studies is the 18 kDa translocator protein (TSPO), as it is overexpressed by activated microglia...
May 17, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28509077/relationships-between-cognitive-impairment-on-adas-cog-and-regional-cerebral-blood-flow-using-spect-in-late-onset-alzheimer-s-disease
#3
Michio Takahashi, Yasunori Oda, Toshiyuki Okubo, Yukihiko Shirayama
The aim of this study was to examine brain hypoperfusion and its relationship with cognitive dysfunction in late-onset Alzheimer's disease (AD). Forty patients with late-onset AD and not receiving acetylcholinesterase inhibitors were recruited from outpatient clinics. We examined cognitive function using the Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog) and brain perfusion using single-photon emission computed tomography, and analyzed classified gyrus level segments with three-dimensional stereotactic surface projection and the stereotactic extraction estimation method level 3...
May 16, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28508292/prof-dr-kurt-jellinger-an-appreciation
#4
EDITORIAL
Peter Riederer
No abstract text is available yet for this article.
May 15, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28477285/a-molecular-pathway-analysis-stresses-the-role-of-inflammation-and-oxidative-stress-towards-cognition-in-schizophrenia
#5
Ellen Kure Fischer, Antonio Drago
Cognitive processes have a genetic component and are impaired in Schizophrenia (SKZ). The exact nature of such impairment escapes definition. The aim of the present contribution was the identification of the molecular pathways enriched with mutations (SNPs) associated with cognitive performance during antipsychotic treatment. 765 individuals from the CATIE study, males = 559, mean age 40.93 ± 11.03 were included. Working memory and the verbal memory were the evaluated outcomes. A mixed regression model for repeated measures served in R for clinical and molecular pathway analysis...
May 5, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28477284/holocranohistochemistry-enables-the-visualization-of-%C3%AE-synuclein-expression-in-the-murine-olfactory-system-and-discovery-of-its-systemic-anti-microbial-effects
#6
Julianna J Tomlinson, Bojan Shutinoski, Li Dong, Fanyi Meng, Dina Elleithy, Nathalie A Lengacher, Angela P Nguyen, Greg O Cron, Qiubo Jiang, Erik D Roberson, Robert L Nussbaum, Nour K Majbour, Omar M El-Agnaf, Steffany A Bennett, Diane C Lagace, John M Woulfe, Subash Sad, Earl G Brown, Michael G Schlossmacher
Braak and Del Tredici have proposed that typical Parkinson disease (PD) has its origins in the olfactory bulb and gastrointestinal tract. However, the role of the olfactory system has insufficiently been explored in the pathogeneses of PD and Alzheimer disease (AD) in laboratory models. Here, we demonstrate applications of a new method to process mouse heads for microscopy by sectioning, mounting, and staining whole skulls ('holocranohistochemistry'). This technique permits the visualization of the olfactory system from the nasal cavity to mitral cells and dopamine-producing interneurons of glomeruli in the olfactory bulb...
May 5, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28470423/rat-brain-glucose-transporter-2-insulin-receptor-and-glial-expression-are-acute-targets-of-intracerebroventricular-streptozotocin-risk-factors-for-sporadic-alzheimer-s-disease
#7
A Knezovic, A Loncar, J Homolak, U Smailovic, J Osmanovic Barilar, L Ganoci, N Bozina, P Riederer, Melita Salkovic-Petrisic
Accumulated evidence suggests that the insulin-resistant brain state and cerebral glucose hypometabolism might be the cause, rather than the consequence, of the neurodegeneration found in a sporadic Alzheimer's disease (sAD). We have explored whether the insulin receptor (IR) and the glucose transporter-2 (GLUT2), used here as their markers, are the early targets of intracerebroventricularly (icv) administered streptozotocin (STZ) in an STZ-icv rat model of sAD, and whether their changes are associated with the STZ-induced neuroinflammation...
May 3, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28466380/differences-of-temporal-dynamics-and-signal-complexity-of-gamma-band-oscillations-in-first-episode-psychosis-during-a-working-memory-task
#8
Pascal Missonnier, Logos Curtis, Joseph Ventura, François R Herrmann, Marco C G Merlo
Gamma band oscillations participate in the temporal binding needed to synchronize cortical networks, involved in early sensory and short term memory processes. In earlier studies, alterations of these neurophysiological parameters have been found in psychotic disorders. To date no study has explored the temporal dynamics and signal complexity of gamma band oscillations in first episode psychosis (FEP). To address this issue, gamma band analysis was performed in 15 FEP patients and 18 healthy controls who successfully performed an adapted 2-back working memory task...
May 2, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28451942/the-measuring-of-substantia-nigra-hyperechogenicity-in-an-italian-cohort-of-parkinson-disease-patients-a-case-control-study-nobis-study
#9
Patrizio Prati, A Bignamini, L Coppo, A Naldi, C Comi, R Cantello, G Gusmaroli, U Walter
Transcranial sonography (TCS) shows an increased echogenic area of the substantia nigra (SN) in patients with Parkinson disease (PD). It has been increasingly used in the diagnosis of PD and its differentiation from atypical parkinsonian syndromes. Here, we studied the diagnostic accuracy of SN TCS in Italian patients. In this blinded cross-sectional study (NOBIS study), two expert neuro-sonologists performed TCS in 25 PD patients and 29 age- and sex-matched controls. The study participants were completely hidden to the TCS investigators using large drapery...
April 27, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28444457/social-cognition-and-idiopathic-isolated-cervical-dystonia
#10
Kristína Czekóová, Petra Zemánková, Daniel J Shaw, Martin Bareš
For a long time, cervical dystonia (CD) has been characterised only by disturbances in motor functioning. Despite accumulating evidence for symptomatology in various non-motor domains, to date no study has investigated social cognition in CD. The aim of this study was to compare performance of CD patients and healthy controls in neurocognitive and socio-cognitive domain. Twenty-five non-depressed patients with CD and 26 healthy controls underwent neuropsychological testing. This involved assessment of cognitive status (general intellect, verbal memory, and executive function), and socio-cognitive functions using a Theory of mind task and self-report on empathy and emotion regulation...
April 25, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28434076/%C3%AE-synuclein-nonhuman-primate-models-of-parkinson-s-disease
#11
REVIEW
David J Marmion, Jeffrey H Kordower
Proper understanding of the mechanism(s) by which α-synuclein misfolds and propagates may hold the key to unraveling the complex pathophysiology of Parkinson's disease. A more complete understanding of the disease itself, as well as establishing animal models that fully recapitulate pathological and functional disease progression, are needed to develop treatments that will delay, halt or reverse the disease course. Traditional neurotoxin-based animal models fail to mimic crucial aspects of Parkinson's and thus are not relevant for the study of neuroprotection and disease-modifying therapies...
April 22, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28421313/association-between-forkhead-box-p2-gene-polymorphism-and-clinical-symptoms-in-chronic-schizophrenia-in-a-chinese-population
#12
Wenwang Rao, Xiangdong Du, Yingyang Zhang, Qiong Yu, Li Hui, Yaqin Yu, Changgui Kou, Guangzhong Yin, Xiaomin Zhu, Lijuan Man, Jair C Soares, Xiang Yang Zhang
The forkhead-box P2 (FOXP2) gene polymorphism has been reported to be involved in the susceptibility to schizophrenia; however, few studies have investigated the association between FOXP2 gene polymorphism and clinical symptoms in schizophrenia. This study investigated whether the FOXP2 gene was associated with the development and symptoms of schizophrenia in relatively genetically homogeneous Chinese population. The FOXP2 rs10447760 polymorphism was genotyped in 1069 schizophrenia inpatients and 410 healthy controls using a case-control design...
April 18, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28393276/leukocyte-telomere-length-is-linked-to-vascular-risk-factors-not-to-alzheimer-s-disease-in-the-vita-study
#13
Margareta Hinterberger, Peter Fischer, Klaus Huber, Walter Krugluger, Sonja Zehetmayer
Association of telomere shortening with overall dementia or Alzheimer's disease is described controversially and the pathophysiologic relevance is unclear. Whether patients, suffering from pure probable Alzheimer's disease or pure vascular dementia, have shorter leukocyte telomeres than cognitively healthy controls was determined. Leukocyte telomere lengths (LTLs) of 597 participants of the VITA study (longitudinal community-based age-cohort [mean 75.7 (±0.45) years] study: 243 male; 578 non-demented at baseline) were compared with different aspects of cognition, risk factors of dementia and survival...
April 9, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28391443/non-human-primate-models-of-pd-to-test-novel-therapies
#14
REVIEW
Marc Morissette, Thérèse Di Paolo
Non-human primate (NHP) models of Parkinson disease show many similarities with the human disease. They are very useful to test novel pharmacotherapies as reviewed here. The various NHP models of this disease are described with their characteristics including the macaque, the marmoset, and the squirrel monkey models. Lesion-induced and genetic models are described. There is no drug to slow, delay, stop, or cure Parkinson disease; available treatments are symptomatic. The dopamine precursor, L-3,4-dihydroxyphenylalanine (L-Dopa) still remains the gold standard symptomatic treatment of Parkinson...
April 8, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28389718/oscillatory-reactivity-to-effortful-cognitive-processing-in-the-subthalamic-nucleus-and-internal-pallidum-a-depth-electrode-eeg-study
#15
Martina Bočková, Jan Chládek, Pavel Jurák, Josef Halámek, Steven Z Rapcsak, Marek Baláž, Jan Chrastina, Ivan Rektor
This study investigates how complex motor-cognitive activities are processed in the subthalamic nucleus (STN) and internal globus pallidum (GPi), as adverse neuropsychiatric effects may accompany deep brain stimulation (DBS), mainly in Parkinson's disease (PD) and STN-DBS. Dystonia patients with GPi-DBS electrodes (n = 5) and PD subjects (n = 5) with STN-DBS electrodes performed two tasks: (1) copying letters; and (2) writing any letter other than that appearing on the monitor. The cognitive load of the second task was greater than that of the first...
April 7, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28386671/alzheimer-s-senile-plaque-as-shown-by-microcryodissection-a-new-technique-for-dissociating-tissue-structures
#16
Manon Thierry, Serge Marty, Susana Boluda, Charles Duyckaerts
Extracellular accumulation of Aβ peptides and intracellular aggregation of hyperphosphorylated tau proteins are the two hallmark lesions of Alzheimer disease (AD). The senile plaque is made of a core of extracellular Aβ surrounded by phospho-tau positive neurites. It includes multiple components such as axons, synapses, glial fibers and microglia. To visualize the relationships of those elements, an original technique was developed, based on the dilation of interstitial water during freezing. Samples of neocortex, hippocampus and striatum were taken from formalin-fixed brains (one control case; three cases with severe Alzheimer disease)...
April 6, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28378231/magnetic-resonance-imaging-for-the-diagnosis-of-parkinson-s-disease
#17
REVIEW
Beatrice Heim, Florian Krismer, Roberto De Marzi, Klaus Seppi
The differential diagnosis of parkinsonian syndromes is considered one of the most challenging in neurology and error rates in the clinical diagnosis can be high even at specialized centres. Despite several limitations, magnetic resonance imaging (MRI) has undoubtedly enhanced the diagnostic accuracy in the differential diagnosis of neurodegenerative parkinsonism over the last three decades. This review aims to summarize research findings regarding the value of the different MRI techniques, including advanced sequences at high- and ultra-high-field MRI and modern image analysis algorithms, in the diagnostic work-up of Parkinson's disease...
April 4, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28364174/primate-beta-oscillations-and-rhythmic-behaviors
#18
REVIEW
Hugo Merchant, Ramón Bartolo
The study of non-human primates in complex behaviors such as rhythm perception and entrainment is critical to understand the neurophysiological basis of human cognition. Next to reviewing the role of beta oscillations in human beat perception, here we discuss the role of primate putaminal oscillatory activity in the control of rhythmic movements that are guided by a sensory metronome or internally gated. The analysis of the local field potentials of the behaving macaques showed that gamma-oscillations reflect local computations associated with stimulus processing of the metronome, whereas beta-activity involves the entrainment of large putaminal circuits, probably in conjunction with other elements of cortico-basal ganglia-thalamo-cortical circuit, during internally driven rhythmic tapping...
March 31, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28361282/prenatal-maternal-distress-seems-to-be-associated-with-the-infant-s-temperament-and-motor-development-an-explorative-study
#19
Christin Haselbeck, Uwe Niederberger, Alexandra Kulle, Katharina Wache, Ellen Brauner, Merlin Gutermuth, Paul-Martin Holterhus, Wolf-Dieter Gerber, Michael Siniatchkin
According to the concept of fetal programming, prenatal distress has long-lasting consequences on the offspring's health later in life. The hypothalamic-pituitary-adrenal axis is considered a mediating system by which maternal distress is transferred to the fetus in intrauterine environment. In this longitudinal explorative study on 30 mother-child-dyads, reported maternal distress and salivary cortisol were collected during pregnancy. Infant temperament, motor and cognitive development were assessed at 16 months...
March 30, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28357564/the-use-of-nonhuman-primate-models-to-understand-processes-in-parkinson-s-disease
#20
REVIEW
Javier Blesa, Inés Trigo-Damas, Natalia López-González Del Rey, José A Obeso
Research with animal models has led to critical health advances that have saved or improved the lives of millions of human beings. Specifically, nonhuman primate's genetic and anatomo-physiological similarities to humans are especially important for understanding processes like Parkinson's disease, which only occur in humans. Unambiguously, the unique contribution made by nonhuman primate research to our understanding of Parkinson's disease is widely recognized. For example, monkeys with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) parkinsonisms are responsive to dopamine replacement therapies, mimicking what is seen in PD patients...
March 29, 2017: Journal of Neural Transmission
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