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https://www.readbyqxmd.com/read/28222559/brain-activity-during-a-lower-limb-functional-task-in-a-real-and-virtual-environment-a-comparative-study
#1
Thaiana Barbosa Ferreira Pacheco, Isabelle Ananda Oliveira Rego, Tania Fernandes Campos, Fabrícia Azevedo da Costa Cavalcanti
BACKGROUND: Virtual Reality (VR) has been contributing to Neurological Rehabilitation because of its interactive and multisensory nature, providing the potential of brain reorganization. Given the use of mobile EEG devices, there is the possibility of investigating how the virtual therapeutic environment can influence brain activity. OBJECTIVE: To compare theta, alpha, beta and gamma power in healthy young adults during a lower limb motor task in a virtual and real environment...
February 8, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28222530/generation-and-partial-characterization-of-rabbit-monoclonal-antibody-to-amyloid-%C3%AE-peptide-1-37-a%C3%AE-37
#2
Pankaj D Mehta, Jean-Francois Blain, Emily A Freeman, Bruce A Patrick, Marc Barshatzky, Lori A Hrdlicka, Sangita P Mehta, Janusz Frackowiak, Bozena Mazur-Kolecka, Jerzy Wegiel, Holger Patzke, David L Miller
Secreted soluble amyloid-β 1-37 (Aβ37) peptide is one of the prominent Aβ forms next to Aβ40, and is found in cerebrospinal fluid (CSF) and blood. Recent studies have shown the importance of quantitation of CSF Aβ37 levels in combination with Aβ38, Aβ40, and Aβ42 to support the diagnosis of patients with probable Alzheimer's disease (AD), and the value of antibody to Aβ37 to facilitate drug discovery studies. However, the availability of reliable and specific monoclonal antibody to Aβ37 is very limited...
February 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28222523/anomalous-white-matter-structure-and-the-effect-of-age-in-down-syndrome-patients
#3
Raquel Fenoll, Jesus Pujol, Susanna Esteba-Castillo, Susana de Sola, Núria Ribas-Vidal, Javier García-Alba, Gonzalo Sánchez-Benavides, Gerard Martínez-Vilavella, Joan Deus, Mara Dierssen, Ramón Novell-Alsina, Rafael de la Torre
BACKGROUND: Neural tissue alterations in Down syndrome are fully expressed at relatively late developmental stages. In addition, there is an early presence of neurodegenerative changes in the late life stages. OBJECTIVE: The aims of this study were both to characterize white matter abnormalities in the brain of adult Down syndrome patients using diffusion tensor imaging (DTI) and to investigate whether degenerative alterations in white matter structure are detectable before dementia is clinically evident...
February 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28222438/microrna-29b-inhibits-angiogenesis-by-targeting-vegfa-through-the-mapk-erk-and-pi3k-akt-signaling-pathways-in-endometrial-carcinoma
#4
Hong-Xia Chen, Xiao-Xia Xu, Bu-Zhen Tan, Zhi Zhang, Xiao-Dong Zhou
OBJECTIVE: The purpose of this study is to explore the effects of microRNA-29b (miR-29b) regulating MAPK/ERK and PI3K/Akt signaling pathways on angiogenesis in endometrial carcinoma (EC) by targeting VEGFA. METHODS: Between February 2013 and April 2015, 126 EC patients admitted to the Second Affiliated Hospital of Nanchang University were randomly selected, with 126 EC tissues and the corresponding adjacent normal tissues collected after surgery. The human EC cell lines RL-95-2 and HEC-1-B and human endometrial cells were assigned to the normal group (human endometrial cells), the blank group (untransfected RL-95-2 or HEC-1-B cells), the pMIR-control group (RL-95-2 or HEC-1-B cells transfected with an empty vector), the pMIR-miR-29b group (RL-95-2 or HEC-1-B cells transfected with the miR-29b plasmid), LNA-control group (RL-95-2 or HEC-1-B cells transfected with an oligonucleotide inhibitors control), the LNA-miR-29b inhibitors group (RL-95-2 or HEC-1-B cells transfected with miRCURY LNATM miR-29b inhibitors), the LNA-miR-29b inhibitors + PD98059 group (RL-95-2 or HEC-1-B cells transfected with miRCURY LNATM miR-29b inhibitors and PD98059, an inhibitor of the MAPK/ERK signaling pathway) and the LNA-miR-29b inhibitors + wortmannin group (RL-95-2 or HEC-1-B cells transfected with miRCURY LNATM miR-29b inhibitors and wortmannin, an inhibitor of the PI3K/Akt signaling pathway)...
February 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222434/a-feedback-loop-between-mir-30a-c-5p-and-dnmt1-mediates-cisplatin-resistance-in-ovarian-cancer-cells
#5
Xi Han, Shuai Zhen, Zhongxue Ye, Jiaojiao Lu, Lijie Wang, Pan Li, Jie Li, Xia Zheng, Huijin Li, Wei Chen, Le Zhao, Xu Li
BACKGROUND: Many microRNAs (miRs) are dysregulated in cancers, and aberrant miR expression patterns have been suggested to correlate with chemo-resistance of cancer cells. We aim to study the role of miR-30 family members in cisplatin-resistance of ovarian cancer cells. METHODS: qRT-PCR was used to compare differential expression levels of miR-30 family members in ovarian cancer cell line A2780 and its cisplatin-resistant derivative CP70. Changes of cisplatin-sensitivity in miR-30a-5p- and miR-30c-5p-overexpressed-CP70 cells and miR-30a-5p- and miR-30c-5p-inhibited-A2780 cells were examined by CCK8 assay and apoptosis analysis using flow cytometry; targets of miR-30a/c-5p were analyzed by western blotting and luciferase reporter assay; methylation regulation of pre-miR-30a/c-5p was examined by methylation specific PCR...
February 21, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222433/high-glucose-induces-mouse-mesangial-cell-overproliferation-via-inhibition-of-hydrogen-sulfide-synthesis-in-a-tlr-4-dependent-manner
#6
Tao Ding, Wei Chen, Juan Li, Jiarong Ding, Xiaobin Mei, Haiyan Hu
BACKGROUND/AIMS: Overproliferation of mesangial cells was believed to play an important role in the progress of diabetic nephropathy, one of the primary complications of diabetes. Hydrogen sulfide (H2S), a well-known and pungent gas with the distinctive smell of rotten eggs, was discovered to play a protective role in diabetic nephropathy. METHODS: MTT assay was used to examine the viability of mesangial cells. Small interfering RNA was used to knock down the expression of TLR4 while specific inhibitor LY294002 to suppress the function of PI3K...
February 22, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222430/microrna-218-increases-the-sensitivity-of-bladder-cancer-to-cisplatin-by-targeting-glut1
#7
Peng Li, Xiao Yang, Yidong Cheng, Xiaolei Zhang, Chengdi Yang, Xiaheng Deng, Pengchao Li, Jun Tao, Haiwei Yang, Jifu Wei, Jingyuan Tang, Wenbo Yuan, Qiang Lu, Xiaoting Xu, Min Gu
BACKGROUND/AIMS: MicroRNA-218 (miR-218) is down-regulated in many malignancies that have been implicated in the regulation of diverse processes in cancer cells. However, the involvement of miR-218 in chemo-sensitivity to cisplatin and the precise mechanism of this action remained unknown in bladder cancer. METHODS: qRT-PCR was used to detect miR-218 and its target Glut1 expression in bladder cancer cell lines T24 and EJ. CCK-8 method was utilized to measure the cell viability...
February 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222363/very-short-term-reactive-forecasting-of-the-solar-ultraviolet-index-using-an-extreme-learning-machine-integrated-with-the-solar-zenith-angle
#8
Ravinesh C Deo, Nathan Downs, Alfio V Parisi, Jan F Adamowski, John M Quilty
Exposure to erythemally-effective solar ultraviolet radiation (UVR) that contributes to malignant keratinocyte cancers and associated health-risk is best mitigated through innovative decision-support systems, with global solar UV index (UVI) forecast necessary to inform real-time sun-protection behaviour recommendations. It follows that the UVI forecasting models are useful tools for such decision-making. In this study, a model for computationally-efficient data-driven forecasting of diffuse and global very short-term reactive (VSTR) (10-min lead-time) UVI, enhanced by drawing on the solar zenith angle (θs) data, was developed using an extreme learning machine (ELM) algorithm...
February 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/28222356/extinction-of-avoidance-behavior-by-safety-learning-depends-on-endocannabinoid-signaling-in-the-hippocampus
#9
Vincenzo Micale, Jens Stepan, Angela Jurik, Fabricio A Pamplona, Rudolph Marsch, Filippo Drago, Matthias Eder, Carsten T Wotjak
The development of exaggerated avoidance behavior is largely responsible for the decreased quality of life in patients suffering from anxiety disorders. Studies using animal models have contributed to the understanding of the neural mechanisms underlying the acquisition of avoidance responses. However, much less is known about its extinction. Here we provide evidence in mice that learning about the safety of an environment (i.e., safety learning) rather than repeated execution of the avoided response in absence of negative consequences (i...
February 3, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28222245/translation-rewiring-at-the-heart-of-phenotype-switching-in-melanoma
#10
Eleonora Leucci, Pierre Close, Jean-Christophe Marine
During tumor progression cancer cells are constantly challenged by intrinsic oncogene-induced and extrinsic micro-environmental stress signals such as hypoxia, nutrient deprivation, oxidative and genotoxic stress. Under these suboptimal growth conditions cancer cells activate an Integrative Stress Response (ISR), which results in a transient decrease in energy consumption followed by a cellular adaptation phase and possibly recovery, if the environmental conditions become more favorable. Translation is a very high energy-consuming process; it is therefore not surprising that to minimize energy consumption cancer cells turn down global protein synthesis rates while reprograming translation towards specific transcripts required for survival and adaptation...
February 21, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28222214/segregation-and-expression-analyses-of-habp2-insights-from-a-large-series-of-familial-non-medullary-thyroid-cancers-and-literature-review
#11
Carla Colombo, Marina Muzza, Maria Carla Proverbio, Giulia Ercoli, Michela Perrino, Valentina Cirello, Leonardo Vicentini, Stefano Ferrero, Laura Fugazzola
INTRODUCTION: Recently, the G534E variant of the HABP2 gene was reported as the underlying genetic defect in a large kindred with non-syndromic familial non medullary thyroid cancer (FNMTC). Nevertheless, this postulated role was not confirmed in additional cohorts. Contrasting data are also available on HABP2 expression in the thyroid. OBJECTIVES: To investigate HABP2 as a potential susceptibility gene in a large series of 27 unrelated families with FNMTC and to test its expression in thyroid tumor and matched normal tissues...
February 21, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28222204/comparative-transcriptome-and-potential-antiviral-signaling-pathways-analysis-of-the-gills-in-the-red-swamp-crayfish-procambarus-clarkii-infected-with-white-spot-syndrome-virus-wssv
#12
Zhi-Qiang Du, Yan-Hui Jin
Red swamp crayfish is an important model organism for research of the invertebrate innate immunity mechanism. Its excellent disease resistance against bacteria, fungi, and viruses is well-known. However, the antiviral mechanisms of crayfish remain unclear. In this study, we obtained high-quality sequence reads from normal and white spot syndrome virus (WSSV)-challenged crayfish gills. For group normal (GN), 39,390,280 high-quality clean reads were randomly assembled to produce 172,591 contigs; whereas, 34,011,488 high-quality clean reads were randomly assembled to produce 182,176 contigs for group WSSV-challenged (GW)...
February 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28222172/rhoa-promotes-epidermal-stem-cell-proliferation-via-pkn1-cyclin-d1-signaling
#13
Fan Wang, Rixing Zhan, Liang Chen, Xia Dai, Wenping Wang, Rui Guo, Xiaoge Li, Zhe Li, Liang Wang, Shupeng Huang, Jie Shen, Shirong Li, Chuan Cao
OBJECTIVE: Epidermal stem cells (ESCs) play a critical role in wound healing, but the mechanism underlying ESC proliferation is not well defined. Here, we explore the effects of RhoA on ESC proliferation and the possible underlying mechanism. METHODS: Human ESCs were enriched by rapid adhesion to collagen IV. RhoA(+/+)(G14V), RhoA(-/-)(T19N) and pGFP control plasmids were transfected into human ESCs. The effect of RhoA on cell proliferation was detected by cell proliferation and DNA synthesis assays...
2017: PloS One
https://www.readbyqxmd.com/read/28222164/comt-and-drd2-ankk-1-gene-gene-interaction-account-for-resetting-of-gamma-neural-oscillations-to-auditory-stimulus-driven-attention
#14
Manuel Garcia-Garcia, Marc Via, Katarzyna Zarnowiec, Iria SanMiguel, Carles Escera, Immaculada C Clemente
Attention capture by potentially relevant environmental stimuli is critical for human survival, yet it varies considerably among individuals. A large series of studies has suggested that attention capture may depend on the cognitive balance between maintenance and manipulation of mental representations and the flexible switch between goal-directed representations and potentially relevant stimuli outside the focus of attention; a balance that seems modulated by a prefrontostriatal dopamine pathway. Here, we examined inter-individual differences in the cognitive control of attention through studying the effects of two single nucleotide polymorphisms regulating dopamine at the prefrontal cortex and the striatum (i...
2017: PloS One
https://www.readbyqxmd.com/read/28222157/dexmedetomidine-preconditioning-may-attenuate-myocardial-ischemia-reperfusion-injury-by-down-regulating-the-hmgb1-tlr4-myd88-nf-%C3%B0%C2%BAb-signaling-pathway
#15
Jing-Jing Zhang, Ke Peng, Juan Zhang, Xiao-Wen Meng, Fu-Hai Ji
AIMS: To investigate whether dexmedetomidine (DEX) preconditioning could alleviate the inflammation caused by myocardial ischemia/reperfusion (I/R) injury by reducing HMGB1-TLR4-MyD88-NF-кB signaling. METHODS: Seventy rats were randomly assigned into five groups: sham group, myocardial I/R group (I/R), DEX+I/R group (DEX), DEX+yohimbine+I/R group (DEX/YOH), and yohimbine+I/R group (YOH). Animals were subjected to 30 min of ischemia induced by occluding the left anterior descending artery followed by 120 min of reperfusion...
2017: PloS One
https://www.readbyqxmd.com/read/28222153/dissecting-nutrient-related-co-expression-networks-in-phosphate-starved-poplars
#16
Mareike Kavka, Andrea Polle
Phosphorus (P) is an essential plant nutrient, but its availability is often limited in soil. Here, we studied changes in the transcriptome and in nutrient element concentrations in leaves and roots of poplars (Populus × canescens) in response to P deficiency. P starvation resulted in decreased concentrations of S and major cations (K, Mg, Ca), in increased concentrations of N, Zn and Al, while C, Fe and Mn were only little affected. In roots and leaves >4,000 and >9,000 genes were differently expressed upon P starvation...
2017: PloS One
https://www.readbyqxmd.com/read/28222148/microrna-200a-silencing-protects-neural-stem-cells-against-cerebral-ischemia-reperfusion-injury
#17
Ji Ma, Shaofeng Shui, Xinwei Han, Dong Guo, Tengfei Li, Lei Yan
Neural stem cells (NSCs) play major roles in neurological recovery after cerebral infarction (CI). This study was trying to investigate whether miR-200a, a vital regulator in cell proliferation, migration and apoptosis, also has a role in oxygen-glucose deprivation/reperfusion (OGD/R) injured NSCs. In this study, primary NSCs were subjected to OGD/R conditions to mimic an in vitro CI model. Before OGD/R induction, NSCs were transfected with vector or shRNA against miR-200a to overexpress or suppress miR-200a expression...
2017: PloS One
https://www.readbyqxmd.com/read/28222068/inhibition-of-cdk5-induces-cell-death-of-tumor-initiating-cells
#18
Melanie M Mandl, Siwei Zhang, Melanie Ulrich, Elisa Schmoeckel, Doris Mayr, Angelika M Vollmar, Johanna Liebl
BACKGROUND: Tumour-initiating cells (TICs) account for chemoresistance, tumour recurrence and metastasis, and therefore represent a major problem in tumour therapy. However, strategies to address TICs are limited. Recent studies indicate Cdk5 as a promising target for anti-cancer therapy and Cdk5 has recently been associated with epithelial-mesenchymal transition (EMT). However, a role of Cdk5 in TICs has not been described yet. METHODS: Expression of Cdk5 in human cancer tissue was analysed by staining of a human tissue microarray (TMA)...
February 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28222026/hypoxic-regulation-of-the-expression-of-genes-encoded-estrogen-related-proteins-in-u87-glioma-cells-eff-ect-of-ire1-inhibition
#19
Minchenko Do, Riabovol Oo, Ratushna Oo, Minchenko Oh
OBJECTIVE: The aim of the present study was to examine the effect of inhibition of endoplasmic reticulum stress signaling, mediated by IRE1 (inositol requiring enzyme 1), which is a central mediator of the unfolded protein response on the expression of genes encoded estrogen related proteins (NRIP1/RIP140, TRIM16/EBBP, ESRRA/NR3B1, FAM162A/E2IG5, PGRMC2/PMBP, and SLC39A6/LIV-1) and their hypoxic regulation in U87 glioma cells for evaluation of their possible significance in the control of glioma cells proliferation...
January 1, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/28221811/deformation-localisation-in-molecular-layers-constrained-between-self-assembled-au-nanoparticles
#20
Guillaume Copie, Moussa Biaye, Heinrich Diesinger, Thierry Mélin, Christophe Krzeminski, Fabrizio Cleri
The localised deformation of molecular monolayers constrained between the spherical surfaces of Au nanoparticles is studied by means of molecular dynamics simulations. Alkyl or polyethylene glycol long-chain molecules were homogeneously distributed over the curved Au surface, pushed against each other by repeated cycles of force relaxation and constant-volume equilibration, at temperatures increasing from 50 to 300K, before being slowly quenched down to near-zero temperature. Plots of minimum configurational energy can be obtained as a function of the nanoparticle distance, according to different directions of approach; therefore, such simulations describe a range of deformations, from perfectly uniaxial compression, to a combination of compression and shear...
February 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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