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https://www.readbyqxmd.com/read/28343041/characterization-of-regional-cold-hydrothermal-inflows-enriched-in-arsenic-and-associated-trace-elements-in-the-southern-part-of-the-duero-basin-spain-by-multivariate-statistical-analysis
#1
Elena Giménez-Forcada, Marisol Vega-Alegre, Susana Timón-Sánchez
Naturally occurring arsenic in groundwater exceeding the limit for potability has been reported along the southern edge of the Cenozoic Duero Basin (CDB) near its contact with the Spanish Central System (SCS). In this area, spatial variability of arsenic is high, peaking at 241μg/L. Forty-seven percent of samples collected contained arsenic above the maximum allowable concentration for drinking water (10μg/L). Correlations of As with other hydrochemical variables were investigated using multivariate statistical analysis (Hierarchical Cluster Analysis, HCA and Principal Component Analysis, PCA)...
March 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28342306/rotigotine-may-control-drooling-in-patients-with-parkinson-s-disease-preliminary-findings
#2
Tommaso Schirinzi, Paola Imbriani, Alessio D'Elia, Giulia Di Lazzaro, Nicola Biagio Mercuri, Antonio Pisani
OBJECTIVE: To evaluate the efficacy of rotigotine in controlling the drooling of Parkinson's Disease (PD) patients. PATIENTS AND METHODS: We assessed 7 PD patients (Hoehn and Yahr scale >2.5) with three different clinical scores (Drooling Severity and Frequency Scale - DSFS, Drooling Rating Scale - DRS and Sialorrhea Clinical Scale for PD - SCS) before and after 4 weeks of therapy. Statistical differences were analyzed with Wilcoxon signed-rank test. RESULTS: We observed that rotigotine significantly improves drooling as measured by the lowering of the three scores (p<0...
March 18, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28339470/meiotic-recombination-modulates-the-structure-and-dynamics-of-the-synaptonemal-complex-during-c-elegans-meiosis
#3
Divya Pattabiraman, Baptiste Roelens, Alexander Woglar, Anne M Villeneuve
During meiotic prophase, a structure called the synaptonemal complex (SC) assembles at the interface between aligned pairs of homologous chromosomes, and crossover recombination events occur between their DNA molecules. Here we investigate the inter-relationships between these two hallmark features of the meiotic program in the nematode C. elegans, revealing dynamic properties of the SC that are modulated by recombination. We demonstrate that the SC incorporates new subunits and switches from a more highly dynamic/labile state to a more stable state as germ cells progress through the pachytene stage of meiotic prophase...
March 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28339263/electronic-stopping-of-slow-protons-in-transition-and-rare-earth-metals-breakdown-of-the-free-electron-gas-concept
#4
D Roth, B Bruckner, M V Moro, S Gruber, D Goebl, J I Juaristi, M Alducin, R Steinberger, J Duchoslav, D Primetzhofer, P Bauer
The electronic stopping cross sections (SCS) of Ta and Gd for slow protons have been investigated experimentally. The data are compared to the results for Pt and Au to learn how electronic stopping in transition and rare earth metals correlates with features of the electronic band structures. The extraordinarily high SCS observed for protons in Ta and Gd cannot be understood in terms of a free electron gas model, but are related to the high densities of both occupied and unoccupied electronic states in these metals...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28337820/selective-radiofrequency-stimulation-of-the-dorsal-root-ganglion-drg-as-a-method-for-predicting-targets-for-neuromodulation-in-patients-with-post-amputation-pain-a-case-series
#5
Corey W Hunter, Ajax Yang, Tim Davis
OBJECTIVE: While spinal cord stimulation (SCS) has established itself as an accepted and validated treatment for neuropathic pain, there are a number of conditions where it has experienced less, long-term success: post amputee pain (PAP) being one of them. Dorsal root ganglion (DRG) stimulation has shown great promise, particularly in conditions where traditional SCS has fallen short. One major difference between DRG stimulation and traditional SCS is the ability to provide focal stimulation over targeted areas...
March 23, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28337211/nutritional-biophysical-and-physiological-characteristics-of-wild-rocket-genotypes-as-affected-by-soilless-cultivation-system-salinity-level-of-nutrient-solution-and-growing-period
#6
Anna Bonasia, Corrado Lazzizera, Antonio Elia, Giulia Conversa
With the aim of defining the best management of nutrient solution (NS) in a soilless system for obtaining high quality baby-leaf rocket, the present study focuses on two wild rocket genotypes ("Nature" and "Naturelle"), grown in a greenhouse under two Southern Italy growing conditions-autumn-winter (AW) and winter-spring (WS)-using two soilless cultivation systems (SCS)-at two electrical conductivity values (EC) of NS. The SCSs used were the Floating System (FS) and Ebb and Flow System (EFS) and the EC values were 2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28334334/p53-and-its-mutants-on-the-slippery-road-from-stemness-to-carcinogenesis
#7
Alina Molchadsky, Varda Rotter
Normal development, tissue homeostasis and regeneration following injury rely on the proper functions of wide repertoire of stem cells (SCs) persisting during embryonic period and throughout the adult life. Therefore, SCs employ robust mechanisms to preserve their genomic integrity and avoid heritage of mutations to their daughter cells. Importantly, propagation of SCs with faulty DNA as well as dedifferentiation of genomically altered somatic cells may result in derivation of cancer SCs, which are considered to be the driving force of the tumorigenic process...
March 15, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28333899/-stem-progenitor-cells-in-diseases-of-the-respiratory-tract
#8
EDITORIAL
Tadeusz Płusa
Stem cells (SCs - stem cells) are characterized by plasticity and the ability to differentiate into other cell types. They are obtained from bone marrow, peripheral blood and cord blood. Mesenchymal stem cells (MSCs) shows a broad immunomodulating, increases the number of regulatory T cells (Treg), modifies the activity of T cells, dendritic cells and NK (natural killer). Direct impact on reducing the release of proinflammatory cytokines and increased release of proinflammatory cytokines. Within the respiratory tract has a number of resident stem and progenitor cells referred to as L-MSCs (lung mesenchymal stem cells) whose presence was confirmed by markers as defined in the trachea, epithelial cells and alveolar...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28333165/mass-coral-mortality-under-local-amplification-of-2%C3%A2-%C3%A2-c-ocean-warming
#9
Thomas M DeCarlo, Anne L Cohen, George T F Wong, Kristen A Davis, Pat Lohmann, Keryea Soong
A 2 °C increase in global temperature above pre-industrial levels is considered a reasonable target for avoiding the most devastating impacts of anthropogenic climate change. In June 2015, sea surface temperature (SST) of the South China Sea (SCS) increased by 2 °C in response to the developing Pacific El Niño. On its own, this moderate, short-lived warming was unlikely to cause widespread damage to coral reefs in the region, and the coral reef "Bleaching Alert" alarm was not raised. However, on Dongsha Atoll, in the northern SCS, unusually weak winds created low-flow conditions that amplified the 2 °C basin-scale anomaly...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332739/gdf9-affects-the-development-and-tight-junction-functions-of-immature-bovine-sertoli-cells
#10
K Tang, L Wang, Y Jin, W Yang, L Yang
Transforming growth factor-β (TGFβ) superfamily are critical regulators of germ cell development that act as extracellular ligands of the signal transduction pathways regulating proliferation, apoptosis and other aspects of cell behaviour. As a member of the TGF-β superfamily, growth differentiation factor 9 (GDF9) plays a critical role in ovarian follicular development and the ovulation rate in females; however, its role in the testis has not been well elucidated. The aim of this study was to investigate the expression of GDF9 and its receptor genes BMPRII and ALK5 in prepuberal bovine Sertoli cells (SCs)...
March 23, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28325770/high-risk-sexual-behaviours-among-gay-and-bisexual-men-comparing-event-level-casual-sex-encounters-among-seroconverters-and-non-seroconverters
#11
Ian Down, Jeanne Ellard, Kathy Triffitt, Iryna Zablotska, Michael Hurley, Graham Brown, Jack Bradley, Garrett Prestage
BACKGROUND: With increasing use of non-condom-based HIV risk reduction strategies by gay and bisexual men (GBM), we compared occasions of condomless anal intercourse with casual partners (CLAIC) that resulted in HIV transmission and similar occasions when HIV transmission did not occur. METHODS: We compared two demographically similar samples of Australian GBM. The HIV Seroconversion Study (SCS) was an online cross-sectional survey of GBM recently diagnosed with HIV...
March 21, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28322477/impact-of-insurance-provider-on-overall-costs-in-failed-back-surgery-syndrome-a-cost-study-of-122-827-patients
#12
Aladine A Elsamadicy, Samuel Harrison Farber, Siyun Yang, Syed Mohammed Qasim Hussaini, Kelly R Murphy, Amanda Sergesketter, Carter M Suryadevara, Promila Pagadala, Beth Parente, Jichun Xie, Shivanand P Lad
OBJECTIVES: Failed back surgery syndrome (FBSS) affects 40% of patients following spine surgery with estimated costs of $20 billion to the US health care system. The aim of this study was to assess the cost differences across the different insurance providers for FBSS patients. METHODS: A retrospective longitudinal study was performed using the Truven MarketScan(®) database to identify FBSS patients from 2001 to 2012. Patients were grouped into Commercial, Medicaid, or Medicare cohorts...
March 21, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28320341/seasonal-patterns-of-dengue-fever-and-associated-climate-factors-in-4-provinces-in-vietnam-from-1994-to-2013
#13
Hu Suk Lee, Hung Nguyen-Viet, Vu Sinh Nam, Mihye Lee, Sungho Won, Phuc Pham Duc, Delia Grace
BACKGROUND: In Vietnam, dengue fever (DF) is still a leading cause of hospitalization. The main objective of this study was to evaluate the seasonality and association with climate factors (temperature and precipitation) on the incidences of DF in four provinces where the highest incidence rates were observed from 1994 to 2013 in Vietnam. METHODS: Incidence rates (per 100,000) were calculated on a monthly basis from during the study period. The seasonal-decomposition procedure based on loess (STL) was used in order to assess the trend and seasonality of DF...
March 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28319551/a-contemporary-medicolegal-analysis-of-implanted-devices-for-chronic-pain-management
#14
Christopher R Abrecht, Penny Greenberg, Ellen Song, Richard D Urman, James P Rathmell
BACKGROUND: Analysis of closed malpractice claims allows the study of rare but serious complications and likely results in improved patient safety by raising awareness of such complications. Clinical studies and closed claims analyses have previously reported on the common complications associated with intrathecal drug delivery systems (IDDS) and spinal cord stimulators (SCS). This study provides a contemporary analysis of claims from within the past 10 years. METHODS: We performed a closed claims analysis for a period January 1, 2009 to December 31, 2013 for cases with pain medicine as the primary service...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28318155/-biomineralization-of-electrospun-polycaprolactone-guided-bone-regeneration-membrane
#15
Deng Xia, Bai Shi
OBJECTIVE: To evaluate the biomineralization of the tissue-engineering electrospun polycaprolactone (PCL) scaffold and its potential use for guided bone regeneration (GBR) membranes. METHODS: PCL ultrafinefiber scaffolds were fabricated by electrospinning and then immersed in supersaturated calcification solution (SCS) for biomineralization investigation. The electrospun PCL scaffolds and the calcium phosphate coating were identified by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR)...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28315859/heteromorphism-of-homomorphic-sex-chromosomes-in-two-anole-species-squamata-dactyloidae-revealed-by-synaptonemal-complex-analysis
#16
Artem P Lisachov, Vladimir A Trifonov, Massimo Giovannotti, Malcolm A Ferguson-Smith, Pavel M Borodin
Iguanians (Pleurodonta) are one of the reptile lineages that, like birds and mammals, have sex chromosomes of ancient origin. In most iguanians these are microchromosomes, making a distinction between the X and Y as well as between homeologous sex chromosomes in other species difficult. Meiotic chromosome analysis may be used to elucidate their differentiation, because meiotic prophase chromosomes are longer and less condensed than metaphase chromosomes, and the homologues are paired with each other, revealing minor heteromorphisms...
March 18, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28306581/spinal-cord-stimulation-treatment-for-persistent-pain-after-a-burn-injury-a-case-report
#17
Takeshi Kubota, Yuuhei Ishikawa, Rie Ishikawa
Spinal cord stimulation (SCS) is used to treat neuropathic pain, but there are no published studies on its use to treat burn pain. We used SCS to treat a 67-year-old man suffering from burn pain that could not be managed with high-dose opioids or adjuvant neuropathic analgesics. A trial of SCS markedly reduced the visual analog scale score for pain in the left lateral abdominal and gluteal regions. He underwent permanent implantation of a SCS and achieved an opioid-free state. This case suggests that SCS treatment is a therapeutic option for burn pain refractory to conventional therapy...
March 16, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28303795/neuregulin-1-functionalization-of-organic-fibers-for-schwann-cell-guidance
#18
Ilaria Tonazzini, Maria Moffa, Dario Pisignano, Marco Cecchini
The repair of peripheral nerve lesions is a clinical problem where the functional recovery is often far from being satisfactory, although peripheral nerves generally retain good potential for regeneration. Here, we develop a novel scaffold approach based on bioactive fibers of poly(ε-caprolactone) where nanotopographical guidance and neuregulin 1 (NRG1) cues are combined. We interface them with rat primary Schwann cells (SCs), the peripheral glial cells that drive initial regeneration of injured nerves, and found that the combination of NRG1 with parallel nano-fibrous topographies is effective in improving SC growth up to 72 h, alignment to fiber topography, and bipolar differentiation, opening original perspectives for nerve repair applications...
April 18, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28302860/mobile-mute-specifies-subsidiary-cells-to-build-physiologically-improved-grass-stomata
#19
Michael T Raissig, Juliana L Matos, M Ximena Anleu Gil, Ari Kornfeld, Akhila Bettadapur, Emily Abrash, Hannah R Allison, Grayson Badgley, John P Vogel, Joseph A Berry, Dominique C Bergmann
Plants optimize carbon assimilation while limiting water loss by adjusting stomatal aperture. In grasses, a developmental innovation-the addition of subsidiary cells (SCs) flanking two dumbbell-shaped guard cells (GCs)-is linked to improved stomatal physiology. Here, we identify a transcription factor necessary and sufficient for SC formation in the wheat relative Brachypodium distachyon. Unexpectedly, the transcription factor is an ortholog of the stomatal regulator AtMUTE, which defines GC precursor fate in Arabidopsis The novel role of BdMUTE in specifying lateral SCs appears linked to its acquisition of cell-to-cell mobility in Brachypodium Physiological analyses on SC-less plants experimentally support classic hypotheses that SCs permit greater stomatal responsiveness and larger range of pore apertures...
March 17, 2017: Science
https://www.readbyqxmd.com/read/28302451/chronic-idiopathic-urticaria-systemic-complaints-and-their-relationship-with-disease-and-immune-measures
#20
Judy C Doong, Kris Chichester, Eric T Oliver, Lawrence B Schwartz, Sarbjit S Saini
BACKGROUND: Patients with chronic idiopathic urticaria (CIU)/chronic spontaneous urticaria sometimes report systemic complaints (SCs). OBJECTIVE: We sought to determine the frequency and characteristics of SCs among patients with CIU, as well as the association of SCs with disease measures, basophil histamine release, and serum tryptase. METHODS: Adult patients with CIU were recruited from a university allergy clinic. Patients completed a disease symptom survey and underwent blood sampling for subsequent basophil histamine release and serum tryptase measurement...
March 13, 2017: Journal of Allergy and Clinical Immunology in Practice
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