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https://www.readbyqxmd.com/read/29353069/lanthanum-chloride-impairs-memory-in-rats-by-disturbing-the-glutamate-glutamine-cycle-and-over-activating-nmda-receptors
#1
Xiaoyu Hu, Jinghua Yang, Yaling Sun, Xiang Gao, Lijin Zhang, Yingqi Li, Miao Yu, Shiyu Liu, Xiaobo Lu, Cuihong Jin, Shengwen Wu, Yuan Cai
Studies have reported that lanthanum chloride (LaCl3) can across the blood-brain barrier, accumulate in the brain and affect the spatial learning and memory abilities. However, the potential mechanism that LaCl3-induced neurotoxic effects has not yet been defined. Glutamate (Glu) is a vital excitatory neurotransmitter, and the excessive Glu accumulation in extracellular space can induce excitatory neurotoxicity. This study was designed to research the influence of LaCl3 on the spatial learning and memory abilities of rats and to discuss the possible mechanism underlying this effect regarding the extracellular Glu concentration, the Glu-glutamine (Gln) cycle and the N-methyl-D-aspartate (NMDA) receptors...
January 15, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29353003/urine-and-plasma-metabolomics-study-on-potential-hepatoxic-biomarkers-identification-in-rats-induced-by-gynura-segetum
#2
Qiu Shoubei, Zhang Haixia, Fei Qianqian, Zhu Fenxia, Wang Jing, Jia Xiaobin, Chen Bin
ETHNOPHARMACOLOGICAL RELEVANCE: Gynura segetum (GS) is an herbal medicine containing Pyrrolizidine Alkaloids (PAs) that causes hepatic sinusoidal obstruction syndrome (HSOS). AIM OF THE STUDY: To discover potential biomarkers and metabolic mechanisms involved in the hepatotoxicity induced by GS. METHODS: SD rats were randomly divided into 4 groups including Saline, the decoction of GS high, medium and low dosage at dosages of 3.75g • kg-1, 7...
January 15, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29351733/glutamate-synthases-from-conifers-gene-structure-and-phylogenetic-studies
#3
Ángel García-Gutiérrez, Francisco M Cánovas, Concepción Ávila
BACKGROUND: Plants synthesize glutamate from ammonium by the combined activity of the enzymes glutamine synthetase (GS) and glutamate synthase (GOGAT) through the glutamate synthase cycle. In plants, there are two forms of glutamate synthases that differ in their electron donors, NADH-GOGAT (EC 1.4.1.14) and Fd-GOGAT (EC 1.4.7.1), which have differential roles either in primary ammonia assimilation or in the reassimilation of ammonium from different catabolic processes. Glutamate synthases are complex iron-sulfur flavoproteins containing functional domains involved in the control and coordination of their catalytic activities in annual plants...
January 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29351127/four-months-of-wearing-a-balance-orthotic-improves-measures-of-balance-and-mobility-among-a-cohort-of-community-living-older-adults
#4
Sean Noah, Cynthia Gibson-Horn, Jennifer L Vincenzo
BACKGROUND AND PURPOSE: The Centers for Disease Control and Prevention estimated that there were 29 million falls and 7 million injuries in 2014 in the United States. Falls, decreased balance, and mobility disability are common in older adults and often result in loss of independence. Finding interventions to address these issues is important, as this age group is growing exponentially. Prior studies indicate balance and mobility can be improved by the balance-based torso-weighting (BBTW) assessment implemented through wear of a balance orthotic (BO)...
January 18, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29350438/astrocytic-glutamine-synthetase-is-expressed-in-the-neuronal-somatic-layers-and-down-regulated-proportionally-to-neuronal-loss-in-the-human-epileptic-hippocampus
#5
Ismini E Papageorgiou, Nektarios A Valous, Bernd Lahrmann, Hana Janova, Zin-Juan Klaft, Arend Koch, Ulf C Schneider, Peter Vajkoczy, Frank L Heppner, Niels Grabe, Niels Halama, Uwe Heinemann, Oliver Kann
Human mesial temporal lobe epilepsy (MTLE) features subregion-specific hippocampal neurodegeneration and reactive astrogliosis, including up-regulation of the glial fibrillary acidic protein (GFAP) and down-regulation of glutamine synthetase (GS). However, the regional astrocytic expression pattern of GFAP and GS upon MTLE-associated neurodegeneration still remains elusive. We assessed GFAP and GS expression in strict correlation with the local neuronal number in cortical and hippocampal surgical specimens from 16 MTLE patients using immunohistochemistry, stereology and high-resolution image analysis for digital pathology and whole-slide imaging...
January 19, 2018: Glia
https://www.readbyqxmd.com/read/29349937/changes-in-clinical-characteristics-of-patients-with-an-initial-diagnosis-of-prostate-cancer-in-korea-10-year-trends-reported-by-a-tertiary-center
#6
Ji Eun Heo, Hyun Kyu Ahn, Jinu Kim, Byung Ha Chung, Kwang Suk Lee
BACKGROUND: The Korea Central Cancer Registry reported that incidence rates of prostate cancer have not increased continuously. We used recent trends in the incidence of prostate cancer to generate a preliminary report of the Korean population with prostate cancer. METHODS: Patients initially diagnosed with prostate cancer by prostate biopsy from 2006 to 2015 at our tertiary center were selected. All patients were categorized according to age (< 65, 65-75, > 75 years), time period (2006-2010 vs...
February 5, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29347340/mirror-node-correlations-tuning-synchronization-in-multiplex-networks
#7
Anil Kumar, Murilo S Baptista, Alexey Zaikin, Sarika Jalan
We show that the degree-degree correlations have a major impact on global synchronizability (GS) of multiplex networks, enabling the specification of synchronizability by only changing the degree-degree correlations of the mirror nodes while maintaining the connection architecture of the individual layer unaltered. If individual layers have nodes that are mildly correlated, the multiplex network is best synchronizable when the mirror degrees are strongly negatively correlated. If individual layers have nodes with strong degree-degree correlations, mild correlations among the degrees of mirror nodes are the best strategy for the optimization of GS...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346085/performance-of-the-bioplex-2200-hiv-ag-ab-assay-for-identifying-acute-hiv-infection
#8
Susan H Eshleman, Estelle Piwowar-Manning, Mariya V Sivay, Barbara Debevec, Stephanie Veater, Laura McKinstry, Linda-Gail Bekker, Sharon Mannheimer, Robert M Grant, Margaret A Chesney, Thomas J Coates, Beryl A Koblin, Jessica M Fogel
BACKGROUND: Assays that detect HIV antigen (Ag) and antibody (Ab) can be used to screen for HIV infection. OBJECTIVES: To compare the performance of the BioPlex 2200 HIV Ag-Ab assay and two other Ag/Ab combination assays for detection of acute HIV infection. STUDY DESIGN: Samples were obtained from 24 individuals (18 from the US, 6 from South Africa); these individuals were classified as having acute infection based on the following criteria: positive qualitative RNA assay; two negative rapid tests; negative discriminatory test...
January 11, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29345442/lung-uptake-of-fluorine-18-fluoroethyl-choline-pet-ct-in-patients-with-prostate-cancer
#9
Daniele A Pizzuto, Salvatore Annunziata, Francesco P Ieria, Carmelo Caldarella, Maria A Isgrò, Valerio Lanni, Gaia Bencivenga, Vittoria Rufini, Alessandro Giordano
BACKGROUND: Metastatic spreading to the lungs is a negative prognostic factor in patients with prostate cancer (PC). Aim of our study was to assess the prevalence of lung PC metastases in patients with fluorine-18 fluoroethyl-choline (F-18-FECh) PET-CT positive lung lesions and the role of Gleason Score (GS) and common biochemical markers in predicting metastatic spreading to the lungs. METHODS: We retrospectively evaluated the scans of 1283 patients ongoing (F-18-FECh) PET-CT for PC between May 2010 and July 2014...
January 17, 2018: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29345381/durable-lesion-formation-while-avoiding-esophageal-injury-during-ablation-of-atrial-fibrillation-lessons-learned-from-late-gadolinium-mr-imaging
#10
Mihail G Chelu, Alan K Morris, Eugene G Kholmovski, Jordan B King, Gagandeep Kaur, Michelle A Silver, Joshua E Cates, Frederick T Han, Nassir F Marrouche
INTRODUCTION: Adequate catheter/atrial tissue contact is critical for lesion formation during radiofrequency (RF) ablation of atrial fibrillation (AF). Late gadolinium enhancement magnetic resonance imaging (LGE-MRI) is a unique tool for the evaluation of lesion formation and detection of acute esophageal injury. METHODS: LGE-MRIs were obtained prior, within 24 hours of, and at 115±62 days after first AF ablation in 36 patients. The Visitag module of CARTO3 was used to collect contact force (CF) and duration from a CF sensing ablation catheter for each registered ablation point...
January 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29344818/dietary-chromium-picolinate-supplementation-affects-growth-whole-body-composition-and-gene-expression-related-to-glucose-metabolism-and-lipogenesis-in-juvenile-blunt-snout-bream-megalobrama-amblycephala
#11
Mingchun Ren, Ahmed Mokrani, Hualiang Liang, Ke Ji, Jun Xie, Xianping Ge, Bo Liu
An 11-week feeding trial was carried out to investigate the effects of supplemented chromium picolinate (Cr-Pic) on the growth, whole-body composition, and relative mRNA expression related to lipogenesis and glucose metabolism in juvenile blunt snout bream. Seven isonitrogenous and isoenergetic diets with graded Cr supplementation levels were fed to triplicate groups. The final weight (FW), feed conversion ratio (FCR), and specific growth rate (SGR) were improved with increasing dietary Cr supplementation levels up to 0...
January 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29344540/standing-height-as-a-prevention-measure-for-overuse-injuries-of-the-back-in-alpine-ski-racing-a-kinematic-and-kinetic-study-of-giant-slalom
#12
Jörg Spörri, Josef Kröll, Benedikt Fasel, Kamiar Aminian, Erich Müller
Background: In alpine ski racing, typical loading patterns of the back include a combined occurrence of spinal bending, torsion, and high peak loads. These factors are known to be associated with high spinal disc loading and have been suggested to be attributable to different types of spine deterioration. However, little is known about the effect of standing height (ie, the distance between the bottom of the running surface of the ski and the ski boot sole) on the aforementioned back loading patterns...
January 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29343308/invited-review-genomic-selection-for-small-ruminants-in-developed-countries-how-applicable-for-the-rest-of-the-world
#13
R Mrode, G M Tarekegn, J M Mwacharo, A Djikeng
Improved management and use of estimated breeding values in breeding programmes, have resulted in rapid genetic progress for small ruminants (SR) in Europe and other developed countries. The development of single nucleotide polymorphisms chips opened opportunities for genomic selection (GS) in SR in these countries. Initially focused on production traits (growth and milk), GS has been extended to functional traits (reproductive performance, disease resistance and meat quality). The GS systems have been characterized by smaller reference populations compared with those of dairy cattle and consisting mostly of cross- or multi-breed populations...
January 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29343237/subtypes-in-clinical-burnout-patients-enrolled-in-an-employee-rehabilitation-program-differences-in-burnout-profiles-depression-and-recovery-resources-stress-balance
#14
Kathrin Bauernhofer, Daniela Bassa, Markus Canazei, Paulino Jiménez, Manuela Paechter, Ilona Papousek, Andreas Fink, Elisabeth M Weiss
BACKGROUND: Burnout is generally perceived a unified disorder with homogeneous symptomatology across people (exhaustion, cynicism, and reduced professional efficacy). However, increasing evidence points to intra-individual patterns of burnout symptoms in non-clinical samples such as students, athletes, healthy, and burned-out employees. Different burnout subtypes might therefore exist. Yet, burnout subtypes based on burnout profiles have hardly been explored in clinical patients, and the samples investigated in previous studies were rather heterogeneous including patients with various physical, psychological, and social limitations, symptoms, and disabilities...
January 17, 2018: BMC Psychiatry
https://www.readbyqxmd.com/read/29342969/feature-fusion-of-icp-aes-uv-vis-and-ft-mir-for-origin-traceability-of-boletus-edulis-mushrooms-in-combination-with-chemometrics
#15
Luming Qi, Honggao Liu, Jieqing Li, Tao Li, Yuanzhong Wang
Origin traceability is an important step to control the nutritional and pharmacological quality of food products. Boletus edulis mushroom is a well-known food resource in the world. Its nutritional and medicinal properties are drastically varied depending on geographical origins. In this study, three sensor systems (inductively coupled plasma atomic emission spectrophotometer (ICP-AES), ultraviolet-visible (UV-Vis) and Fourier transform mid-infrared spectroscopy (FT-MIR)) were applied for the origin traceability of 192 mushroom samples (caps and stipes) in combination with chemometrics...
January 15, 2018: Sensors
https://www.readbyqxmd.com/read/29342938/role-of-aquaporins-in-determining-carbon-and-nitrogen-status-in-higher-plants
#16
REVIEW
Limin Gao, Zhifeng Lu, Lei Ding, Junjie Guo, Min Wang, Ning Ling, Shiwei Guo, Qirong Shen
Aquaporins (AQPs) are integral membrane proteins facilitating the transport of water and some small neutral molecules across cell membranes. In past years, much effort has been made to reveal the location of AQPs as well as their function in water transport, photosynthetic processes, and stress responses in higher plants. In the present review, we paid attention to the character of AQPs in determining carbon and nitrogen status. The role of AQPs during photosynthesis is characterized as its function in transporting water and CO₂ across the membrane of chloroplast and thylakoid; recalculated results from published studies showed that over-expression of AQPs contributed to 25% and 50% increases in stomatal conductance (gs) and mesophyll conductance (gm), respectively...
January 15, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29342241/ipat-intelligent-prediction-and-association-tool-for-genomic-research
#17
Chunpeng James Chen, Zhiwu Zhang
Summary: The ultimate goal of genomic research is to effectively predict phenotypes from genotypes so that medical management can improve human health and molecular breeding can increase agricultural production. Genomic prediction or selection (GS) plays a complementary role to genome-wide association studies (GWAS), which is the primary method to identify genes underlying phenotypes. Unfortunately, most computing tools cannot perform data analyses for both GWAS and GS. Furthermore, the majority of these tools are executed through a command-line interface (CLI), which requires programming skills...
January 11, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29341876/probing-and-characterizing-the-high-specific-sequences-of-ssdna-aptamer-against-sgiv-infected-cells
#18
Pengfei Li, Qing Yu, Lingli Zhou, Dexin Dong, Shina Wei, Hanzheng Ya, Bo Chen, Qiwei Qin
As the major viral pathogen of grouper aquaculture, Singapore grouper iridovirus (SGIV) has caused great economic losses in China and Southeast Asia. In the previous study, we have generated highly specific ssDNA aptamers against SGIV-infected grouper spleen cells (GS) by Systematic Evolution of Ligands by Exponential Enrichment technology (SELEX), in which Q2 had the highest binding affinity of 16.43 nM. In this study, we would try to identify the specific sequences in the aptamer Q2 that exhibited the high binding affinity to SGIV-infected cells by truncating the original Q2 into some different specific segments...
January 13, 2018: Virus Research
https://www.readbyqxmd.com/read/29340253/rbiomirgs-an-all-in-one-mirna-gene-set-analysis-solution-featuring-target-mrna-mapping-and-expression-profile-integration
#19
Jing Zhang, Kenneth B Storey
Background: With the continuous discovery of microRNA's (miRNA) association with a wide range of biological and cellular processes, expression profile-based functional characterization of such post-transcriptional regulation is crucial for revealing its significance behind particular phenotypes. Profound advancement in bioinformatics has been made to enable in depth investigation of miRNA's role in regulating cellular and molecular events, resulting in a huge quantity of software packages covering different aspects of miRNA functional analysis...
2018: PeerJ
https://www.readbyqxmd.com/read/29340038/diagnostic-performance-of-68gallium-psma-11-pet-ct-to-detect-significant-prostate-cancer-and-comparison-with-18fec-pet-ct
#20
Manuela A Hoffmann, Matthias Miederer, Helmut J Wieler, Christian Ruf, Frank M Jakobs, Mathias Schreckenberger
Background: Radiolabeled prostate-specific membrane antigen (PSMA) has proven to be a highly accurate method to detect recurrence and metastases of prostate cancer, but only sparse data is available about its performance in the diagnosis of clinically significant primary prostate cancer. Methods: We compared 68Ga-PSMA-11 PET/CT in 25 patients with 18FEC PET/CT in 40 patients with suspected prostate carcinoma based on an increased PSA level.The PET/CT results were compared with the histopathologic Gleason Score (GS) of biopsies...
December 19, 2017: Oncotarget
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