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Journal of Neural Transmission

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https://www.readbyqxmd.com/read/28421313/association-between-forkhead-box-p2-gene-polymorphism-and-clinical-symptoms-in-chronic-schizophrenia-in-a-chinese-population
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/28342083/classification-of-advanced-stages-of-parkinson-s-disease-translation-into-stratified-treatments
#10
REVIEW
Rejko Krüger, Jochen Klucken, Daniel Weiss, Lars Tönges, Pierre Kolber, Stefan Unterecker, Michael Lorrain, Horst Baas, Thomas Müller, Peter Riederer
Advanced stages of Parkinson's disease (advPD) still impose a challenge in terms of classification and related stage-adapted treatment recommendations. Previous concepts that define advPD by certain milestones of motor disability apparently fall short in addressing the increasingly recognized complexity of motor and non-motor symptoms and do not allow to account for the clinical heterogeneity that require more personalized approaches. Therefore, deep phenotyping approaches are required to characterize the broad-scaled, continuous and multidimensional spectrum of disease-related motor and non-motor symptoms and their progression under real-life conditions...
March 24, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28337552/clinical-utility-of-resting-state-functional-connectivity-magnetic-resonance-imaging-for-mood-and-cognitive-disorders
#11
REVIEW
T Takamura, T Hanakawa
Although functional magnetic resonance imaging (fMRI) has long been used to assess task-related brain activity in neuropsychiatric disorders, it has not yet become a widely available clinical tool. Resting-state fMRI (rs-fMRI) has been the subject of recent attention in the fields of basic and clinical neuroimaging research. This method enables investigation of the functional organization of the brain and alterations of resting-state networks (RSNs) in patients with neuropsychiatric disorders. Rs-fMRI does not require participants to perform a demanding task, in contrast to task fMRI, which often requires participants to follow complex instructions...
March 23, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28326445/the-role-of-nonhuman-primate-models-in-the-development-of-cell-based-therapies-for-parkinson-s-disease
#12
REVIEW
Scott C Vermilyea, Marina E Emborg
Through the course of over three decades, nonhuman primate (NHP) studies on cell-based therapies (CBTs) for Parkinson's disease (PD) have provided insight into the feasibility, safety and efficacy of the approach, methods of cell collection and preparation, cell viability, as well as potential brain targets. Today, NHP research continues to be a vital source of information for improving cell grafts and analyzing how the host affects graft survival, integration and function. Overall, this article aims to discuss the role that NHP models of PD have played in CBT development and highlights specific issues that need to be considered to maximize the value of NHP studies for the successful clinical translation of CBTs...
March 22, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28324169/roles-of-centromedian-parafascicular-nuclei-of-thalamus-and-cholinergic-interneurons-in-the-dorsal-striatum-in-associative-learning-of-environmental-events
#13
REVIEW
Ko Yamanaka, Yukiko Hori, Takafumi Minamimoto, Hiroshi Yamada, Naoyuki Matsumoto, Kazuki Enomoto, Toshihiko Aosaki, Ann M Graybiel, Minoru Kimura
The thalamus provides a massive input to the striatum, but despite accumulating evidence, the functions of this system remain unclear. It is known, however, that the centromedian (CM) and parafascicular (Pf) nuclei of the thalamus can strongly influence particular striatal neuron subtypes, notably including the cholinergic interneurons of the striatum (CINs), key regulators of striatal function. Here, we highlight the thalamostriatal system through the CM-Pf to striatal CINs. We consider how, by virtue of the direct synaptic connections of the CM and PF, their neural activity contributes to the activity of CINs and striatal projection neurons (SPNs)...
March 21, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28321566/differential-effects-of-bifrontal-and-occipital-nerve-stimulation-on-pain-and-fatigue-using-transcranial-direct-current-stimulation-in-fibromyalgia-patients
#14
Wing Ting To, Evan James, Jan Ost, John Hart, Dirk De Ridder, Sven Vanneste
Fibromyalgia is a disorder characterized by widespread musculoskeletal pain frequently accompanied by other symptoms such as fatigue. Moderate improvement from pharmacological and non-pharmacological treatments have proposed non-invasive brain stimulation techniques such as transcranial direct current stimulation (tDCS) to the occipital nerve (more specifically the C2 area) or to the dorsolateral prefrontal cortex (DLPFC) as potential treatments. We aimed to explore the effectiveness of repeated sessions of tDCS (eight sessions) targeting the C2 area and DLPFC in reducing fibromyalgia symptoms, more specifically pain and fatigue...
March 20, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28315978/the-hallucinogen-2-5-dimethoxy-4-iodoamphetamine-hydrochloride-activates-neurotrophin-receptors-in-a-neuronal-cell-line-and-promotes-neurites-extension
#15
Zoya Marinova, Susanne Walitza, Edna Grünblatt
Decreased neurotrophic factors expression and neurotrophin receptors signalling have repeatedly been reported in association with stress, depression, and neurodegenerative disorders. We have previously identified the hallucinogen 2,5-dimethoxy-4-iodoamphetamine hydrochloride (DOI) as protective against trophic deprivation-induced cytotoxicity in human neuroblastoma SK-N-SH cells and established the dependence of this effect on the 5-HT2A receptor, tyrosine kinases activity, and the extracellular signal-regulated kinase pathway...
March 18, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28314948/motor-and-non-motor-symptoms-in-old-age-onset-parkinson-s-disease-patients
#16
Marcelo D Mendonça, Tania Lampreia, Rita Miguel, André Caetano, Raquel Barbosa, Paulo Bugalho
Advancing age is a well-known risk factor for Parkinson's disease (PD). With population ageing it is expected that the total number of patients with PD onset at oldage increases. Information on the motor but particularly on non-motor phenotype of this late-onset population is lacking. We recruited 24 patients with PD onset at or over 75 years. Each patient was matched with 1 control patient with PD onset between the ages of 40 and 65 and matched for disease duration. Both groups were assessed with the UPDRS, the Non-motor symptoms scale (NMSS) and other scales to assess non-motor symptoms...
March 17, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28299453/simultaneous-determination-of-mao-a-and-b-activity-following-first-time-intake-of-an-irreversible-mao-b-inhibitor-in-patients-with-parkinson-s-disease
#17
Thomas Müller, Peter Riederer, Edna Grünblatt
We determined monoamine oxidase-A (plasma) and -B (platelets) enzyme activity in chronic levodopa treated patients with Parkinson's disease after first time intake of an irreversible monoamine oxidase-B inhibitor. One patient received 10 mg selegiline and eleven patients took 1 mg rasagiline. A significant decrease of monoamine oxidase-B activity appeared 2 and 4 h following monoamine oxidase-B inhibitor intake in comparison to baseline. We confirm with this design, that rasagiline and selegiline inhibit monoamine oxidase-B but not monoamine oxidase-A after single dosing...
March 15, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28293733/type-a-monoamine-oxidase-and-serotonin-are-coordinately-involved-in-depressive-disorders-from-neurotransmitter-imbalance-to-impaired-neurogenesis
#18
REVIEW
Makoto Naoi, Wakako Maruyama, Masayo Shamoto-Nagai
Type A monoamine oxidase (MAOA) catabolizes monoamine transmitters, serotonin, norepinephrine and dopamine, and plays a major role in the onset, progression and therapy of neuropsychiatric disorders. In depressive disorders, increase in MAOA expression and decrease in brain levels of serotonin and norepinephrine are proposed as the major pathogenic factors. The functional polymorphism of MAOA gene and genes in serotonin signal pathway are associated with depression. This review presents recent advance in studies on the role of MAOA in major depressive disorder and related emotional disorders...
March 14, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28283756/dopamine-t-cells-and-multiple-sclerosis-ms
#19
REVIEW
Mia Levite, Franca Marino, Marco Cosentino
Dopamine is a key neurotransmitter that induces critical effects in the nervous system and in many peripheral organs, via 5 dopamine receptors (DRs): D1R-D5R. Dopamine also induces many direct and very potent effects on many DR-expressing immune cells, primarily T cells and dendritic cells. In this review, we focus only on dopamine receptors, effects and production in T cells. Dopamine by itself (at an optimal concentration of~0.1 nM) induces multiple function of resting normal human T cells, among them: T cell adhesion, chemotactic migration, homing, cytokine secretion and others...
March 10, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28275863/post-reexposure-administration-of-d-cycloserine-facilitates-reconsolidation-of-contextual-conditioned-fear-memory-in-rats
#20
Akiyoshi Saitoh, Kie Akagi, Jun-Ichiro Oka, Mitsuhiko Yamada
The effect of D-cycloserine, a N-methyl-D-aspartate receptor partial agonist, on the reconsolidation of conditioned fear memory is not precisely understood. In this study, we clarified the effects of D-cycloserine on the reconsolidation in rats, by performing contextual fear conditioning with a mild fear-conditioning procedure and with post-reexposure administration of the drug. The D-cycloserine (15 mg/kg subcutaneously)-treated rats showed a persistent and greater fear response during the test session compared with the control group...
March 8, 2017: Journal of Neural Transmission
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