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https://www.readbyqxmd.com/read/28444610/publicly-available-datasets-on-thallium-tl-in-the-environment-a-comment-on-presence-of-thallium-in-the-environment-sources-of-contaminations-distribution-and-monitoring-methods-by-bozena-karbowska-environ-monit-assess-2016-188-640-doi-10-1007-s10661-016-5647
#1
Patrice de Caritat, Clemens Reimann
This comment highlights a whole series of datasets on thallium concentrations in the environment that were overlooked in the recent review by Karbowska, Environmental Monitoring and Assessment, 188, 640, 2016 in this journal. Geochemical surveys carried out over the last few decades all over the world at various scales and using different sampling media have reported the concentration of thallium (and dozens more elements) in tens of thousands of samples. These datasets provide a 'real-world' foundation upon which source apportionment investigations can be based, monitoring programs devised and modelling studies designed...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28435706/substitution-of-indium-for-chromium-in-tlin5-x-cr-x-se8-crystal-structure-of-tlin4-811-5-cr0-189-5-se8
#2
Robin Lefèvre, David Berthebaud, Franck Gascoin
The new thallium penta-(indium/chromium) octa-selenide, TlIn4.811(5)Cr0.189(5)Se8, has been synthesized by solid-state reaction. It crystallizes isotypically with TlIn5Se8 in the space group C2/m. Although the two Tl positions are disordered and only partially occupied, no Tl deficiency was observed. The insertion of chromium in the structure has been confirmed by EDS analysis. Chromium substitutes indium exclusively at one of three In sites, viz. at one of the positions with site symmetry 2/m (Wyckoff position 2a)...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28432490/thallium-201-washout-rate-of-stress-myocardial-perfusion-imaging-as-a-predictor-of-mortality-in-diabetic-kidney-disease-patients-initiating-hemodialysis-an-observational-follow-up-study
#3
Toshihide Hayashi, Nobuhiko Joki, Yuri Tanaka, Masaki Iwasaki, Shun Kubo, Ai Matsukane, Yasunori Takahashi, Yoshihiko Imamura, Koichi Hirahata, Hiroki Hase
BACKGROUND: Thallium-201 washout rate of stress myocardial perfusion imaging (MPI) has been reported to correlate with coronary flow reserve which is a parameter of myocardial microcirculation. However, the evidence for its use in diabetic kidney disease (DKD) has been lacking, and the association between thallium-201 washout rate and adverse outcomes including death is unknown. Therefore, the present study was conducted to evaluate the predictive ability of thallium-201 washout rate for mortality in DKD patients initiating hemodialysis...
April 21, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28428471/motion-frozen-imaging-by-gated-myocardial-perfusion-single-photon-emission-computed-tomography-using-multi-focus-fan-beam-collimator-in-thallium-201-study
#4
Kaito Takahashi, Takashi Takeuchi, Yoshiyuki Hosokai, Hayato Odagiri, Haruo Saito
PURPOSE: This study aimed to evaluate the statistical noise of motion-frozen (MF) image generated by gated myocardial perfusion single photon emission computed tomography (SPECT) imaging using IQ · SPECT and to determine the optimal acquisition and reconstruction parameters for MF image using IQ · SPECT. METHODS: A movement cardiac phantom and static cardiac phantom were used to acquire the MF images. The acquisition times used were different in 8 and 16 frames per R-R interval, and varying reconstruction parameters (subset and iteration) were used...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28405882/iq-spect-for-thallium-201-myocardial-perfusion-imaging-effect-of-normal-databases-on-quantification
#5
Takahiro Konishi, Kenichi Nakajima, Koichi Okuda, Hiroto Yoneyama, Shinro Matsuo, Takayuki Shibutani, Masahisa Onoguchi, Seigo Kinuya
OBJECTIVE: Although IQ-single-photon emission computed tomography (SPECT) provides rapid acquisition and attenuation-corrected images, the unique technology may create characteristic distribution different from the conventional imaging. This study aimed to compare the diagnostic performance of IQ-SPECT using Japanese normal databases (NDBs) with that of the conventional SPECT for thallium-201 ((201)Tl) myocardial perfusion imaging (MPI). METHODS: A total of 36 patients underwent 1-day (201)Tl adenosine stress-rest MPI...
April 12, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28392814/microleakage-evaluation-at-implant-abutment-interface-using-radiotracer-technique
#6
Hakimeh Siadat, Mahnaz Arshad, Hossein-Ali Mahgoli, Babak Fallahi
OBJECTIVES: Microbial leakage through the implant-abutment (I-A) interface results in bacterial colonization in two-piece implants. The aim of this study was to compare microleakage rates in three types of Replace abutments namely Snappy, GoldAdapt, and customized ceramic using radiotracing. MATERIALS AND METHODS: Three groups, one for each abutment type, of five implants and one positive and one negative control were considered (a total of 17 regular body implants)...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28382386/effects-of-hemoglobin-level-on-myocardial-washout-rate-of-thallium-201-in-patients-with-normal-myocardial-perfusion-assessed-by-single-photon-emission-computed-tomography
#7
Satoshi Kurisu, Yoji Sumimoto, Hiroki Ikenaga, Noriaki Watanabe, Ken Ishibashi, Yoshihiro Dohi, Yukihiro Fukuda, Yasuki Kihara
Myocardial perfusion single-photon emission computed tomography (SPECT) is often performed even in patients with suspected coronary artery disease complicated by anemia. We assessed the effects of hemoglobin level on myocardial washout rate of Thallium-201 (Tl-201) in patients with normal myocardial perfusion assessed by SPECT. The study population consisted of 231 patients with summed stress score of zero on SPECT. The mean myocardial washout rate of Tl-201 in the left ventricle was calculated from the stress and the redistribution Bull's eye map...
April 5, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28355586/simultaneous-removal-of-thallium-and-chloride-from-a-highly-saline-industrial-wastewater-using-modified-anion-exchange-resins
#8
Huosheng Li, Yongheng Chen, Jianyou Long, Daqian Jiang, Juan Liu, Sijie Li, Jianying Qi, Ping Zhang, Jin Wang, Jian Gong, Qihang Wu, Diyun Chen
Simultaneous removal of thallium (Tl) and chloride from a highly saline industrial wastewater was investigated using modified anion ion exchange resins. The removal of thallium was mainly driven by the exchange of Tl-chlorocomplex (TlCl4(-)) formed in the oxidation of thallous (Tl (I)) to thallic ion (Tl (III)) by hydrogen peroxide (H2O2) under saline conditions. Over 97% of thallium and chloride removal was achieved using the modified resins, with a wide optimal conditions found to be H2O2 dosage 1.0-25.0mL/L, pH 1...
March 11, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28353103/the-geochemical-release-feature-of-tl-in-tl-rich-pyrite-mine-wastes-a-long-term-leaching-test
#9
Jinwen Li, Nan Chen, Ivy Rajan, Zhehua Sun, Huiming Wu, Diyun Chen, Lingjun Kong
Identifying and revealing the geochemical behaviour of Tl during mine waste weathering are very important to assess the potential environmental impact of Thallium (Tl) from open mine-waste piles. Herein, two methods including the modified BCR sequential extraction and the long-term humidity cell tests (HCT) were employed to understand the Tl chemical fractions and to stimulate intense chemical weathering process, respectively. The results from BCR sequential extraction showed that the Tl concentration in the studied sample was 18...
March 28, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28347468/trace-element-status-in-patients-with-type-2-diabetes-in-norway-the-hunt3-survey
#10
Anica Simić, Ailin Falkmo Hansen, Bjørn Olav Åsvold, Pål Richard Romundstad, Kristian Midthjell, Tore Syversen, Trond Peder Flaten
Several epidemiological studies have indicated that a number of trace elements may play a role in type 2 diabetes (T2D). We investigated the association between prevalent T2D and the concentrations of 25 trace elements in whole blood, and the relationships between T2D duration and blood levels of the trace elements that we found to be related to T2D prevalence. In this population based case-control study, 267 patients with self-reported T2D and 609 controls (frequency matched), were selected from the third Nord-Trøndelag Health Survey...
May 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28340386/constructed-ils-coated-porous-magnetic-nickel-cobaltate-hexagonal-nanoplates-sensing-materials-for-the-simultaneous-detection-of-cumulative-toxic-metals
#11
Yuanyuan Dong, Lei Zhang
The different morphologies of magnetic nickel cobaltate (NiCo2O4) electrocatalysts, consisting of nanoparticles (NiCo2O4-N), nanoplates (NiCo2O4-P) and microspheres (NiCo2O4-S) were fabricated. It was found that the electrocatalytic properties of the sensing materials were strongly dependent on morphology and specific surface area. The porous NiCo2O4 hexagonal nanoplates coupled with ILs as modified materials (ILs@NiCo2O4-P) for the simultaneous determination of thallium (Tl(+)), lead (Pb(2+)) and copper (Cu(2+)), exhibited high sensitivity, long-time stability and good repeatability...
March 18, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28334667/redox-controlled-release-dynamics-of-thallium-in-periodically-flooded-arable-soil
#12
Svetlana Antić-Mladenović, Tina Frohne, Mirjana Kresović, Hans-Joachim Stärk, Dubravka Savić, Vlado Ličina, Jörg Rinklebe
To our knowledge, this is the first work to mechanistically study the impact of the redox potential (EH) and principal factors, such as pH, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), chlorides (Cl(-)) and sulfates (SO4(2-)), on the release dynamics of thallium (Tl) in periodically flooded soil. We simulated flooding using an automated biogeochemical microcosm system that allows for systematical control of pre-defined redox windows. The EH value was increased mechanistically at intervals of approximately 100 mV from reducing (-211 mV) to oxidizing (475 mV) conditions...
March 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28321702/association-between-level-of-urinary-trace-heavy-metals-and-obesity-among-children-aged-6-19%C3%A2-years-nhanes-1999-2011
#13
Wentao Shao, Qian Liu, Xiaowei He, Hui Liu, Aihua Gu, Zhaoyan Jiang
Global prevalence of obesity has been increasing dramatically in all ages. Although traditional causes for obesity development have been studied widely, it is unclear whether environmental exposure of substances such as trace heavy metals affects obesity development among children and adolescents so far. Data from the National Health and Nutrition Examination Survey (1999-2011) were retrieved, and 6602 US children were analyzed in this study. Urinary level of nine trace heavy metals, including barium, cadmium, cobalt, cesium, molybdenum, lead, antimony, thallium, and tungsten, was analyzed for their association with the prevalence of obesity among children aged 6-19 years...
March 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28293748/assessing-trace-metal-contamination-and-organic-matter-in-the-brackish-lakes-as-the-major-source-of-potable-water
#14
Vlado Cuculić, Neven Cukrov, Željko Kwokal, Slađana Strmečki, Marta Plavšić
On small and medium karstic coastal islands in the Adriatic Sea, brackish lakes are often the only source of freshwater. Therefore, it is important to adequately evaluate the biogeochemical processes occurring in these complex water systems, as well as to determine the origin of contaminants present. In this study, the distribution and origin of trace metals (Tl, Hg, Cd, Pb, Cu, Zn, Ni, Co) and organic matter in the water column, sediment, and surrounding soil of the brackish lakes on Mljet Island, South Adriatic Sea, Croatia, were evaluated...
March 14, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28270324/-imaging-methods-used-in-the-differential-diagnosis-between-brain-tumour-relapse-and-radiation-necrosis-after-stereotactic-radiosurgery-of-brain-metastases-literature-review
#15
REVIEW
I Menoux, J-P Armspach, G Noël, D Antoni
After stereotactic radiosurgery for a cerebral metastasis, one of the dreaded toxicities is radionecrosis. In the follow-up of these patients, it is impossible to distinguish radiation necrosis from tumour relapse either clinically or with MRI. In current practice, many imaging methods are designed such as special sequences of MRI (dynamic susceptibility contrast perfusion and susceptibility-weighted imaging, diffusion), proton magnetic resonance spectroscopy, positron emission tomography, or more seldom 201-thallium single-photon emission computerized tomography...
December 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28256312/thallium-rich-rust-scales-in-drinkable-water-distribution-systems-a-case-study-from-northern-tuscany-italy
#16
Cristian Biagioni, Massimo D'Orazio, Giovanni O Lepore, Francesco d'Acapito, Simone Vezzoni
Following the detection of a severe thallium contamination of the drinkable water from the public distribution system of Valdicastello Carducci-Pietrasanta (northern Tuscany, Italy), and the identification of the source of contamination in the Molini di Sant'Anna spring (average Tl content≈15μgL(-1)), the replacement of the contaminated water with a virtually Tl-free one (Tl<0.10μgL(-1)) caused an increase in Tl concentration in the drinkable water. This suggested that the pipeline interior had become a secondary source of Tl contamination, promoting its mineralogical and geochemical study...
February 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28242975/radio-adaptive-response-in-myocardial-perfusion-imaging-induced-by-technetium-99m
#17
Mohammad Mehdi Shirazi, Ali Shabestani-Monfared, Maryam Shahidi, Mehrangiz Amiri, Seyed Mohammad Abedi, Sajad Borzoueisileh, Kourosh Ebrahim Nejad Gorji
PURPOSE OF THE STUDY: Low dose radiation will induce adaptation and following exposure to an adaptive dose, the cells are more resistance to following challenging doses. This phenomenon is known as radio-adaptive response. The aim of this study was to investigate the percentage of apoptotic cells in the peripheral blood samples of the patients which undergo myocardial perfusion imaging (MPI) with technetium-99m (Tc-99m) before thallium scan to assess the induction of radio-adaptive response...
January 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28241439/synthesis-characterization-and-antibacterial-studies-of-n-benzothiazol-2-yl-4-chlorobenzenesulphonamide-and-its-neodymium-iii-and-thallium-iii-complexes
#18
Lawrence Nnamdi Obasi, Uchechukwu Susan Oruma, Ibrahim Abdulrazak Al-Swaidan, Ponnadurai Ramasami, Chigozie Julius Ezeorah, Alfred Ezinna Ochonogor
N-(Benzothiazol-2-yl)-4-chlorobenzenesulphonamide (NBTCS) was synthesized by condensation reaction of 4-chlorobenzenesulphonyl chloride and 2-aminobenzothiazole in acetone under reflux. Neodymium(III) and thallium(III) complexes of the ligand were also synthesized. Both ligand and metal complexes were characterized using UV-Vis, IR, ¹H- and (13)C-NMR spectroscopies, elemental analysis and molar conductance measurement. IR studies revealed that the ligand is tridentate and coordinates to the metal ions through nitrogen and oxygen atoms of the sulphonamide group and nitrogen atom attached to benzothiazole ring...
February 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28238459/linking-sources-to-early-effects-by-profiling-urine-metabolome-of-residents-living-near-oil-refineries-and-coal-fired-power-plants
#19
Chi-Hsin Sally Chen, Tzu-Hsuen Yuan, Ruei-Hao Shie, Kuen-Yuh Wu, Chang-Chuan Chan
BACKGROUND: This study aims at identifying metabolic changes linking external exposure to industrial air toxics with oxidative stress biomarkers. METHODS: We classified 252 study subjects as 111 high vs. 141 low exposure subjects by the distance from their homes to the two main emission sources, oil refineries and coal-fired power plants. We estimated individual's external exposure to heavy metals and polycyclic aromatic hydrocarbons (PAHs) by dispersion and kriging models, respectively...
February 23, 2017: Environment International
https://www.readbyqxmd.com/read/28216669/role-of-relativity-in-high-pressure-phase-transitions-of-thallium
#20
Komsilp Kotmool, Sudip Chakraborty, Thiti Bovornratanaraks, Rajeev Ahuja
We demonstrate the relativistic effects in high-pressure phase transitions of heavy element thallium. The known first phase transition from h.c.p. to f.c.c. is initially investigated by various relativistic levels and exchange-correlation functionals as implemented in FPLO method, as well as scalar relativistic scheme within PAW formalism. The electronic structure calculations are interpreted from the perspective of energetic stability and electronic density of states. The full relativistic scheme (FR) within L(S)DA performs to be the scheme that resembles mostly with experimental results with a transition pressure of 3 GPa...
February 20, 2017: Scientific Reports
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