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https://www.readbyqxmd.com/read/28822252/removal-of-gadolinium-a-neutron-poison-from-the-moderator-system-of-nuclear-reactors
#1
A L Rufus, Padma S Kumar, K Jeena, S Velmurugan
Gadolinium as gadolinium nitrate is used as neutron poison in the moderator system for regulating and controlling the power generation of Pressurized Heavy Water Reactors (PHWR) and proposed to be used in Advanced Heavy Water Reactors (AHWR) owing to its high neutron absorption cross section. Removal of the added gadolinium nitrate (Gd(3+) and NO3(-)) from the system after its intended use is done using ion exchange resins. In the present investigation, attempts have been made to optimize the ion exchange process for generation of low radioactive waste and maximize utilization of the ion exchange resins by employing different types of resins and different modes of operation...
August 3, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28821595/a-computational-model-of-1-5-ag-dynamics-during-pregnancy
#2
Seyedeh M Zekavat, Slava Butkovich, Grace J Young, David M Nathan, Danny Petrasek
The importance of 1,5-anhydroglucitol (1,5-AG) as an intermediate biomarker for diabetic pregnancy is multi-fold: (1) it serves as a reliable indicator of moderate-level glycemic control, especially during early gestation; (2) it has been associated with increased risk of diabetes, independent of HbA1c and fasting glucose; and (3) it is an independent risk factor for the development of eclampsia during pregnancy. However, the clinical use of this biomarker during pregnancy has been underutilized due to physiological changes in glomerular filtration rate, plasma volume, and other hemodynamic parameters which have been hypothesized to bias gestational serum 1,5-AG concentrations...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28819941/maternal-and-neonatal-outcomes-of-pregnancy-at-39-weeks-and-beyond-with-mild-gestational-diabetes-mellitus
#3
Hanqing Chen, Suhua Zou, Jianbo Yang, Songqing Deng, Jian Cai, Zilian Wang
OBJECTIVES: The purpose of this study was to retrospectively analyze maternal and neonatal outcomes in pregnant women with mild gestational diabetes mellitus at 39 weeks compared to 40 weeks. MATERIAL AND METHODS: Clinical data of 372 cases of mild gestational diabetes mellitus form First Affiliated Hospital of Sun Yat-sen University were analyzed retrospectively. There were 108 mild GDM patients that delivered at 40-40+6 weeks in our research group, and 264 patients that delivered in 39-39+6 weeks in the control group...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28817576/gestational-diabetes-mellitus-is-associated-with-increased-pro-migratory-activation-of-vascular-endothelial-growth-factor-receptor-2-and-reduced-expression-of-vascular-endothelial-growth-factor-receptor-1
#4
Felipe Troncoso, Jesenia Acurio, Kurt Herlitz, Claudio Aguayo, Patricio Bertoglia, Enrique Guzman-Gutierrez, Marco Loyola, Marcelo Gonzalez, Meriem Rezgaoui, Gernot Desoye, Carlos Escudero
Placentas from gestational diabetes mellitus (GDM) are often hypervascularized; however, participation of vascular endothelial growth factor (VEGF) and its receptors in this placental adaptation is unclear. We aimed to test whether changes in phosphorylation of tyrosine 951 or tyrosine 1175 (pY951 or pY1175) of the vascular endothelial growth factor receptor 2 (KDR) are associated with the proangiogenic state observed in placentas from GDM. We obtained placental samples from women with normal pregnancies (n = 24) or GDM (n = 18)...
2017: PloS One
https://www.readbyqxmd.com/read/28817218/bmi-nephroangiosclerosis-and-glomerulonephritis-is-there-any-meeting-point
#5
Antonietta Gigante, Konstantinos Giannakakis, Francesca Di Mario, Biagio Barbano, Edoardo Rosato, Riccardo Pofi, Marcello Di Paolo, Anna Rachele Rocca, Rosario Cianci
BACKGROUND: Overweight has been related to renal arteriolosclerosis and is able to modify intrarenal hemodynamics. Increasing evidences suggest an association between weight excess and primary glomerulonephritis (GN). The aim of this study was to evaluate the relationship between nutritional status and intrarenal arterial stiffness in primary GN associated to arteriolosclerosis. We have considered the glomerular diameter (GD) as morphological parameter in overweight and obese patients...
August 17, 2017: Nephrology
https://www.readbyqxmd.com/read/28817202/perinatal-mortality-in-japanese-women-diagnosed-with-gestational-diabetes-mellitus-and-diabetes-mellitus
#6
Mamoru Morikawa, Takashi Sugiyama, Norimasa Sagawa, Yuji Hiramatsu, Hiroshi Ishikawa, Hiromi Hamada, Takashi Kameda, Emiko Hara, Shigeru Toda, Hisanori Minakami
AIMS: The objective of this study was to determine how many pregnant Japanese women with diabetes mellitus (DM)/gestational diabetes mellitus (GDM) experience perinatal mortality in the presence of fetal anomalies. METHODS: Our investigation included data from 205 secondary/tertiary obstetric facilities located widely in Japan. The Japan Ministry of Health, Labour and Welfare Vital Statistics of Japan was used for comparison. RESULTS: Of 237 941 women giving birth at 205 hospitals, 1796 (0...
August 17, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28816953/peritumoral-decreased-uptake-area-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging-and-tumor-recurrence-after-surgical-resection-in-hepatocellular-carcinoma-a-strobe-compliant-article
#7
Seung Kak Shin, Yun Soo Kim, Young Sup Shim, Seung Joon Choi, So Hyun Park, Dong Hae Jung, Oh Sang Kwon, Duck Joo Choi, Ju Hyun Kim
Recently, it has been suggested that peritumoral decreased uptake area (PDUA) in the hepatobiliary phase (HBP) of gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) was associated with vascular invasion in hepatocellular carcinoma (HCC). We aimed to investigate correlations between microvascular invasion and PDUA, and elucidate the predictability of PDUA for tumor recurrence after resection.We retrospectively analyzed clinicopathological and radiological data from 126 consecutive patients with single HCC ≤5 cm without macrovascular invasion who underwent preoperative Gd-EOB-DTPA-enhanced MRI and surgical resection...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816518/balancing-between-prejudice-and-fact-for-gaming-disorder-does-the-existence-of-alcohol-use-disorder-stigmatize-healthy-drinkers-or-impede-scientific-research
#8
Seung-Yup Lee, Hyekyung Choo, Hae Kook Lee
The inclusion of Gaming Disorder (GD) criteria in the 11th Revision of the International Classification of Diseases (ICD-11) beta draft was recently criticized, and an argument was made for its removal to "avoid a waste of public resources." However, these misleading statements are believed to be based on under estimation of this ever-growing problem. Such claims may endanger public health and the psychosocial well-being of affected individuals. Thus, the seriousness of the problem was briefly emphasized in our response paper...
August 17, 2017: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28816501/problematic-gaming-exists-and-is-an-example-of-disordered-gaming
#9
Mark D Griffiths, Daria J Kuss, Olatz Lopez-Fernandez, Halley M Pontes
Background The recent paper by Aarseth et al. (2016) questioned whether problematic gaming should be considered a new disorder particularly because "Gaming Disorder" (GD) has been identified as a disorder to be included in the next (11th) revision of the World Health Organization's International Classification of Diseases (ICD-11). Methods This study uses contemporary literature to argue why GD should be included in the ICD-11. Results Aarseth and colleagues acknowledge that there is much literature (including papers by some of the authors themselves) that some individuals experience serious problems with video gaming...
August 17, 2017: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28816497/inclusion-of-gaming-disorder-criteria-in-icd-11-a-clinical-perspective-in-favor
#10
Susumu Higuchi, Hideki Nakayama, Satoko Mihara, Masaki Maezono, Takashi Kitayuguchi, Takuma Hashimoto
Data from a specialist treatment facility for Internet addiction (IA) in Japan showed that (a) the vast majority of treatment seekers are addicted to online games, (b) their symptoms are often quite severe, and (c) there is a significant demand for IA treatment. In addition, systemic obstacles to the delivery of medical services in Japan exist due to the exclusion of IA criteria from ICD-10. Consequently, the inclusion of GD criteria in ICD-11 will almost certainly increase the capacity and quality of treatment through advances in research and possible changes in national medical systems to meet treatment demand...
August 17, 2017: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28816495/inclusion-of-gaming-disorder-in-icd-has-more-advantages-than-disadvantages
#11
Orsolya Király, Zsolt Demetrovics
This paper is a response to a recent debate paper in which Aarseth et al. argue that the inclusion of a formal diagnosis and categories for problematic video gaming or Gaming Disorder (GD) in the World Health Organization's 11th Revision of the International Classification of Diseases (ICD-11) is premature and therefore the proposal should be removed. The present authors systematically address all the six main arguments presented by Aarseth et al. and argue that, even though some of the concerns presented in the debate paper are legitimate, the inclusion of GD in ICD-11 has more advantages than disadvantages...
August 17, 2017: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28816405/synthesis-density-functional-theory-calculations-and-luminescence-of-lanthanide-complexes-with-2-6-bis-3-methoxybenzylidene-hydrazinocarbonyl-pyridine-schiff-base-ligand
#12
Ziyad A Taha, Taher S Ababneh, Ahmed K Hijazi, Qutaiba Abu-Salem, Abdulaziz M Ajlouni, Shroq Ebwany
A pyridine-diacylhydrazone Schiff base ligand, L = 2,6-bis[(3-methoxy benzylidene)hydrazinocarbonyl]pyridine was prepared and characterized by single crystal X-ray diffraction. Lanthanide complexes, Ln-L, {[LnL(NO3 )2 ]NO3 .xH2 O (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Er)} were prepared and characterized by elemental analysis, molar conductance, thermal analysis (TGA/DTGA), mass spectrometry (MS), Fourier transform infra-red (FT-IR) and nuclear magnetic resonance (NMR) spectroscopy. Ln-L complexes are isostructural with four binding sites provided by two nitro groups along with four coordination sites for L...
August 17, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28816308/ln-iii-complexes-ln-eu-gd-tb-dy-with-a-chiral-ligand-containing-1-10-phenanthroline-and-menthol-fragments-synthesis-structure-magnetic-properties-and-photoluminescence
#13
Stanislav V Larionov, Yuliya A Bryleva, Ludmila A Glinskaya, Victor F Plyusnin, Arkady S Kupryakov, Alexander M Agafontsev, Alexey V Tkachev, Artem S Bogomyakov, Dmitry A Piryazev, Ilya V Korolkov
A series of lanthanide(iii) complexes based on the new chiral ligand L, which contains 1,10-phenanthroline and (-)-menthol fragments, namely [LnL2(NO3)3] (Ln = Eu (1), Gd (2), Tb (3), Dy (4)), have been synthesized and structurally characterized. Complexes 1-4 are isostructural and crystallize in the non-centrosymmetric space group P41212. The mononuclear complexes comprise a 10-coordinate Ln(3+) ion with two bidentate N,N-donor ligands (L) and three bidentate chelating nitrate groups. The magnetic properties of complexes 1-4 are determined mainly by the Ln(3+) ions...
August 17, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28816102/hydrodenticity-to-enhance-relaxivity-of-gadolinium-dtpa-within-crosslinked-hyaluronic-acid-nanoparticles
#14
Maria Russo, Alfonso Maria Ponsiglione, Ernesto Forte, Paolo Antonio Netti, Enza Torino
AIM: The efficacy of gadolinium (Gd) chelates as contrast agents for magnetic resonance imaging remains limited owing to poor relaxivity and toxic effects. Here, the effect of the hydration of the hydrogel structure on the relaxometric properties of Gd-DTPA is explained for the first time and called Hydrodenticity. RESULTS: The ability to tune the hydrogel structure is proved through a microfluidic flow-focusing approach able to produce crosslinked hyaluronic acid nanoparticles, analyzed regarding the crosslink density and mesh size, and connected to the characteristic correlation times of the Gd-DTPA...
August 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28815927/metallofullerenol-inhibits-cellular-iron-uptake-by-inducing-transferrin-tetramerization
#15
Jinxia Li, Xueqing Xing, Baoyun Sun, Yuliang Zhao, Zhonghua Wu
Herein, A549 tumor cell proliferation was confirmed to be positively dependent on the concentration of Fe3+ or transferrin (Tf). Gd@C₈₂(OH)₂₂ or C₆₀(OH)₂₂ effectively inhibited the iron uptake and the subsequent proliferation of A549 cells. The conformation changes of Tf mixed with FeCl₃, GdCl₃, C₆₀(OH)₂₂ or Gd@C₈₂(OH)₂₂ were obtained by SAXS. The results demonstrate that Tf homodimers can be decomposed into monomers in the presence of FeCl₃, GdCl3 or C₆₀(OH)₂₂, but aggregated into tetramers in the presence of Gd@C₈₂(OH)₂₂...
August 16, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28814136/hybrid-core-shell-nanoparticles-entrapping-gd-dtpa-and-18-f-fdg-for-simultaneous-pet-mri-acquisitions
#16
Donatella Vecchione, Marco Aiello, Carlo Cavaliere, Emanuele Nicolai, Paolo Antonio Netti, Enza Torino
AIM: Although there has been an improvement in the hardware and software of the PET/MRI system, the development of the nanoprobes exploiting the simultaneous acquisition of the bimodal data is still under investigation. Moreover, few studies on biocompatible and clinically relevant probes are available. This work presents a core-shell polymeric nanocarrier with improved relaxometric properties for simultaneous PET/MRI acquisitions. MATERIALS & METHODS: Core-shell nanoparticles entrapping the Gd-DTPA and (18)F-FDG are obtained by a complex coacervation...
August 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28813108/consequences-of-gestational-diabetes-to-the-brain-and-behavior-of-the-offspring
#17
Ricardo A L DE Sousa, Yasmin S Torres, Claudia P Figueiredo, Giselle F Passos, Julia R Clarke
Gestational diabetes mellitus (GD) is a form of insulin resistance triggered during the second/third trimesters of pregnancy in previously normoglycemic women. It is currently estimated that 10% of all pregnancies in the United States show this condition. For many years, the transient nature of GD has led researchers and physicians to assume that long-term consequences were absent. However, GD diagnosis leads to a six-fold increase in the risk of developing type 2 diabetes (T2D) in women and incidence of obesity and T2D is also higher among their infants...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28812093/a-convenient-approach-to-facilitate-monitoring-gaucher-disease-progression-and-therapeutic-response
#18
Wujuan Zhang, Melissa Oehrle, Carlos E Prada, Ida Vanessa D Schwartz, Somchai Chutipongtanate, Duangrurdee Wattanasirichaigoon, Venette Inskeep, Mei Dai, Dao Pan, Ying Sun, Kenneth D R Setchell
Gaucher disease (GD) is caused by mutations on the GBA1 gene leading to deficiency in acid β-glucosidase (GCase) and subsequent accumulation of its substrates, glucosylceramide (GlcC) and glucosylsphingosine (GlcS). GlcS in plasma has been proposed as a highly sensitive and specific biomarker for the diagnosis of GD and for monitoring disease progression and response to therapy. Here we report a novel robust and accurate hydrophilic interaction liquid chromatography tandem mass spectrometric method (HILIC-MS/MS) for the direct measurement of glucosylsphingosine (GlcS) in dried plasma spots (DPS)...
August 16, 2017: Analyst
https://www.readbyqxmd.com/read/28812041/anthropometric-and-skeletal-parameters-predict-2-strand-semitendinosus-tendon-size-in-double-bundle-anterior-cruciate-ligament-reconstruction
#19
Daisuke Chiba, Eiichi Tsuda, Shizuka Sasaki, Xizhe Liu, Yasuyuki Ishibashi
BACKGROUND: Few studies have examined whether skeletal parameters predict hamstring graft size during anterior cruciate ligament reconstruction (ACLR). PURPOSE/HYPOTHESIS: The purpose of this study was to examine whether preoperative anthropometric and radiographic skeletal parameters could predict hamstring graft size during ACLR. We hypothesized that both anthropometric and skeletal parameters can be used to predict graft size in our double-bundle procedure and that the use of skeletal parameters will improve the accuracy of graft size prediction...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28811581/the-key-energy-scales-of-gd-based-metallofullerene-determined-by-resonant-inelastic-x-ray-scattering-spectroscopy
#20
Yu-Cheng Shao, L Andrew Wray, Shih-Wen Huang, Yi-Sheng Liu, Wang Song, Shangfeng Yang, Yi-De Chuang, Jinghua Guo, Way-Faung Pong
Endohedral metallofullerenes, formed by encaging Gd inside fullerenes like C80, can exhibit enhanced proton relaxitivities compared with other Gd-chelates, making them the promising contrast agents for magnetic resonance imaging (MRI). However, the underlying key energy scales of Gd x Sc3-x N@C80 (x  =  1-3) remain unclear. Here, we carry out resonant inelastic x-ray scattering (RIXS) experiments on Gd x Sc3-x N@C80 at Gd N 4,5-edges to directly study the electronic structure and spin flip excitations of Gd 4f electrons...
August 15, 2017: Scientific Reports
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