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https://www.readbyqxmd.com/read/28537716/one-pot-hydrothermal-synthesis-of-tb-iii-13-geo4-6o7-oh-and-k2tb-iv-ge2o7-preparation-of-a-stable-terbium-4-complex
#1
Kyle Fulle, Liurukara D Sanjeewa, Colin D McMillen, Yimei Wen, Apeksha C Rajamanthrilage, Jeffrey N Anker, George Chumanov, Joseph W Kolis
Two terbium germanates have been synthesized via high-temperature and high-pressure hydrothermal synthesis with 20 M KOH as a mineralizer using Tb4O7 as a starting material. Tb13(GeO4)6O7(OH) crystallizes in trigonal space group R3̅, is built up of isolated GeO4 units, and contains a complex arrangement of terbium oxide polyhedra. K2TbGe2O7 is a terbium(4+) pyrogermanate that is isostructural with K2ZrGe2O7 and displays a rare stable Tb(4+) oxidation state in the solid state.
May 24, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28535413/controllable-synthesis-and-luminescent-properties-of-rare-earth-doped-gd2-moo4-3-nanoplates
#2
Lei Zhang, Bohua Dong, Guohua Wang, Rongjie Gao, Ge Su, Wei Wang, Lixin Cao
For the first time, we have successfully synthesized rare-earth doped Gd2(MoO4)3: RE(3+) (RE=Eu, Tb) nanoplates by solvothermal method. The morphology of Gd2(MoO4)3 can be manipulated by changing the reaction times and reaction temperatures. The composition and surface morphology have been investigated by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM), respectively. Under the excitation of UV, Photoluminescence (PL) has been used to explore the excellent luminescence properties of the synthesized nanophosphors...
April 21, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28534730/big-stimulus-little-ears-safety-in-administering-vestibular-evoked-myogenic-potentials-in-children
#3
Megan L A Thomas, Denis Fitzpatrick, Ryan McCreery, Kristen L Janky
BACKGROUND: Cervical and ocular vestibular-evoked myogenic potentials (VEMPs) have become common clinical vestibular assessments. However, VEMP testing requires high intensity stimuli, raising concerns regarding safety with children, where sound pressure levels may be higher due to their smaller ear canal volumes. PURPOSE: The purpose of this study was to estimate the range of peak-to-peak equivalent sound pressure levels (peSPLs) in child and adult ears in response to high intensity stimuli (i...
May 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28534574/syntheses-structures-and-magnetic-properties-of-a-family-of-end-on-azido-bridged-cu-ii-ln-iii-complexes
#4
Xing-Cai Huang, Xin-Hua Zhao, Dong Shao, Xin-Yi Wang
The reaction of Cu(valdmpn) (H2valdmpn = N,N'-bis-(3-methoxysalicylidene)-1,3-diamino-2,2-dimethylpropane), LnCl3·nH2O (Ln = La(1), Ce (2), Pr(3), Nd(4), Sm(5), Eu(6), Gd(7), Tb(8), Dy(9), Ho(10), Er(11), Tm(12), Yb(13), Lu(14)) and NaN3 in methanol led to a whole series of heterometallic Cu(II)-Ln(III) complexes. The basic structural components of these complexes are the [Cu(II)(valdmpn)Ln(III)] units with a compartmental Schiff-base ligand. These [Cu(II)Ln(III)] units were then further connected by the end-on (EO) azides between the Ln(3+) centers to form tetranuclear {[CuLn](μ-N3)n[LnCu]} motifs, where n is 3 for the complexes of larger radii lanthanides (1CuLa to 5CuSm) and 2 for the complexes of smaller radii lanthanides (6CuEu to 14CuLu)...
May 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28534572/sensing-of-fluoride-ions-in-aqueous-media-using-a-luminescent-coordination-polymer-and-liposome-composite
#5
Masayuki Honjo, Tomomi Koshiyama, Yumi Fukunaga, Yasuhiro Tsuji, Motoki Tanaka, Masaaki Ohba
The synthesis of a luminescent coordination polymer (Tb-BTC) within the confined environment of a liposome allowed for the anisotropic growth of nanosized Tb-BTC crystals. Consequently, the resulting composite Tb-BTC@Lipo exhibited a higher fluorescence sensitivity to fluoride anions in aqueous media compared to the independent Tb-BTC in bulk.
May 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28534567/intrinsic-ferromagnetism-and-quantum-anomalous-hall-effect-in-a-cobr2-monolayer
#6
Peng Chen, Jin-Yu Zou, Bang-Gui Liu
The electronic, magnetic, and topological properties of a CoBr2 monolayer are studied in the framework of density-functional theory (DFT) combined with tight-binding (TB) modeling in terms of the Wannier basis. Our DFT investigation and Monte Carlo simulation show that there exists intrinsic two-dimensional ferromagnetism in the CoBr2 monolayer, thanks to the large out-of-plane magnetocrystalline anisotropic energy. Our further study indicates that the spin-orbit coupling makes it become a topologically nontrivial insulator with a quantum anomalous Hall effect and topological Chern number [script C] = 4 and its edge states can be manipulated by changing the width of its nanoribbons and applying strains...
May 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28534565/lanthanoplatins-emissive-eu-iii-and-tb-iii-complexes-staining-nucleoli-targeted-through-pt-dna-crosslinking
#7
Khushbu Singh, Swati Singh, Payal Srivastava, Sri Sivakumar, Ashis K Patra
Two highly luminescent water-soluble heterometallic LnPt2 complexes, [{cis-PtCl(NH3)2}2Ln(L)(H2O)](NO3)2 (Ln = Eu (1), Tb (2)), have been designed for their selective nucleoli staining through formation of Pt-DNA crosslinks. The complexes showed significant cellular uptake and distinctive nucleoli localization through intrinsic emission from Eu(III) or Tb(III) observed through confocal fluorescence microscopy.
May 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28534476/effect-of-short-message-service-on-management-of-pulmonary-tuberculosis-patients-in-anhui-province-china-a-prospective-randomized-controlled-study
#8
Xue-Hui Fang, Shi-Yang Guan, Li Tang, Fang-Biao Tao, Zheng Zou, Ji-Xiang Wang, Xiao-Hong Kan, Quan-Zhi Wang, Zhi-Ping Zhang, Hong Cao, Dong-Chun Ma, Hai-Feng Pan
BACKGROUND To explore the significance of short message service (SMS) on the management of pulmonary tuberculosis (TB) patients in reinforcing the treatment adherence and health awareness, and provide scientific evidences for popularizing this model and formulating related polices and measures. MATERIAL AND METHODS Six counties (districts) were selected by stratified cluster sampling method, and randomly divided into control group and intervention group. Pulmonary TB patients eligible to the study criteria were included in the study...
May 23, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28534463/gene-expression-analysis-of-bovine-embryonic-disc-trophoblast-and-parietal-hypoblast-at-the-start-of-gastrulation
#9
Peter L Pfeffer, Craig S Smith, Paul Maclean, Debra K Berg
In cattle early gastrulation-stage embryos (Stage 5), four tissues can be discerned: (i) the top layer of the embryonic disc consisting of embryonic ectoderm (EmE); (ii) the bottom layer of the disc consisting of mesoderm, endoderm and visceral hypoblast (MEH); (iii) the trophoblast (TB); and (iv) the parietal hypoblast. We performed microsurgery followed by RNA-seq to analyse the transcriptome of these four tissues as well as a developmentally earlier pre-gastrulation embryonic disc. The cattle EmE transcriptome was similar at Stages 4 and 5, characterised by the OCT4/SOX2/NANOG pluripotency network...
May 23, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28534271/optic-disc-granuloma-with-epididymitis-a-diagnostic-challenge
#10
Parthopratim Dutta Majumder, Sowkath Ali, Jyotirmay Biswas
BACKGROUND: Sarcoidosis and tuberculosis (TB) share epidemiological, immunological, and molecular features common to both, and often, it becomes difficult to differentiate them especially in a highly TB-endemic country like India. We report a case of optic disc granuloma along with epididymitis and infertility in a male who showed a response to treatment with anti-tuberculosis therapy and steroids. RESULTS: A 35-year-old Indian male who presented with complaints of blurring vision in the right eye for 6 months and treated elsewhere with two intravitreal injections of anti-VEGF was found to have optic disc granuloma in the right eye...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28533875/-management-of-spontaneous-pneumothorax-about-138-cases
#11
Bouchra Habibi, Leila Achachi, Sohaib Hayoun, Mohammed Raoufi, Laila Herrak, Mustapha El Ftouh
Pneumothorax is a collection of air in the pleural cavity. We conducted a retrospective study of patients with spontaneous pneumothorax in the Department of Pneumology at the Ibn Sina Hospital in Rabat (2009-2011) with the aim to determine the epidemiological, clinical, radiological, therapeutic and evolutionary manifestation of spontaneous pneumothorax. The study involved 138 patients: 128 men and 10 women (17-83 years), with an average age of 44.5 +/- 17.4 years and sex ratio of 12/8. 81.2% of patients were smokers...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28533670/diagnostic-value-of-gadobenate-dimeglumine-enhanced-hepatocyte-phase-magnetic-resonance-imaging-in-evaluating-hepatic-fibrosis-and-hepatitis
#12
Xiu-Mei Li, Zhu Chen, En-Hua Xiao, Quan-Liang Shang, Cong Ma
AIM: To evaluate the diagnostic value of gadobenate dimeglumine (Gd-BOPTA)-enhanced hepatocyte-phase magnetic resonance imaging (MRI) in evaluating hepatic fibrosis and hepatitis. METHODS: Hepatocyte-phase images of Gd-BOPTA-enhanced MRI were retrospectively evaluated in 76 patients with chronic liver disease. These patients were classified into five groups according to either the histopathological fibrosis stage (S0-S4) or the histopathological hepatitis grade (G0-G4)...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28533187/host-directed-therapies-offer-novel-opportunities-for-the-fight-against-tuberculosis
#13
REVIEW
Arnaud Machelart, Ok-Ryul Song, Eik Hoffmann, Priscille Brodin
Tuberculosis (TB) remains a leading global health problem that is exacerbated by the emergence of multidrug and extensively drug-resistant Mycobacterium tuberculosis strains. Control of the disease requires novel therapeutic strategies. Modulating host homeostasis appears to be a promising approach, and recent studies have identified novel potential host targets and compounds that could be investigated for host-directed therapies (HDTs). Moreover, the recent development of intracellular high-throughput phenotypic assays makes it possible to screen large libraries of compounds to identify more rapidly new effectors for mycobacterial elimination...
May 19, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28533124/the-novel-gene-mtb192-is-a-candidate-marker-for-the-detection-of-multidrug-resistant-mycobacterium-tuberculosis-strains
#14
Junhua Chen, Li Jiang, Wei Su, Gaihuan Zheng, Xu Hongmei
BACKGROUND: Multi-drug resistant tuberculosis (TB) is one of the most main threats to the global TB control work at present. And it's very difficult to detect. From a screen of differentially expressed genes in multidrug-resistant tuberculosis (MDR-TB) strains, we identified a new gene, mtb192. In the present study, we verified the association of mtb192 with TB drug resistance by detecting its expression in clinical isolates from paediatric TB patients. MATERIALS AND METHODS: The homology of mtb192 was analysed by gene blasting in GenBank...
May 19, 2017: Gene
https://www.readbyqxmd.com/read/28532916/spinal-intramedullary-tuberculosis-with-concurrent-supra-and-infratentorial-intracranial-disease-in-a-9-month-old-boy-case-report-and-review-of-the-literature
#15
REVIEW
Michael George Zaki Ghali, Visish M Srinivasan, C J Kim, Archana Malik
Tuberculous involvement of the spinal cord parenchyma is an exceedingly rare clinical entity; even more so is concurrent intracranial tuberculosis (TB). Spinal intramedullary TB presents with a characteristic subacute myelopathy, with slowly progressive paraplegia, sensory deficits, and/or bowel and bladder dysfunction. Diagnosis is strongly suspected with a clinical history of known TB in conjunction with characteristic findings on magnetic resonance imaging. Management involves multi-agent antitubercular chemotherapy without or with operative intervention...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28531377/following-surgically-assisted-rapid-palatal-expansion-do-tooth-borne-or-bone-borne-appliances-provide-more-skeletal-expansion-and-dental-expansion
#16
Adrien Hamedi-Sangsari, Zahra Chinipardaz, Lee Carrasco
PURPOSE: The aim of this study was to compare outcome measurements of skeletal and dental expansion with bone-borne (BB) versus tooth-borne (TB) appliances after surgically assisted rapid palatal expansion (SARPE). This study was performed to provide quantitative measurements that will help the oral surgeon and orthodontist in selecting the appliance with, on average, the greatest amount of skeletal expansion and the least amount of dental expansion. MATERIALS AND METHODS: A computerized database search was performed using PubMed, EBSCO, Cochrane, Scopus, Web of Science, and Google Scholar on publications in reputable oral surgery and orthodontic journals...
April 25, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28531291/a-novel-virus-vectored-respiratory-mucosal-vaccine-enhances-anti-tuberculosis-immunity-in-a-humanized-model-system
#17
Yushi Yao, Rocky Lai, Sam Afkhami, Siamak Haddadi, Anna Zganiacz, Fatemeh Vahedi, Ali A Ashkar, Charu Kaushic, Mangalakumari Jeyanathan, Zhou Xing
Background: The translation of pre-clinically promising novel tuberculosis (TB) vaccines to ultimate human applications has met with the challenge of lacking markedly improved animal models for vaccine testing with an immune system of human equivalent in its genetic diversity and level of susceptibility to TB. Methods: We have developed a humanized mice (Hu-mice) TB model system to investigate the clinical relevance of a novel virus-vectored (VV) TB vaccine administered via respiratory mucosal (RM) or parenteral route...
May 20, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28531276/impact-of-vitamin-a-and-carotenoids-on-the-risk-of-tuberculosis-progression
#18
Omowunmi Aibana, Molly F Franke, Chuan-Chin Huang, Jerome T Galea, Roger Calderon, Zibiao Zhang, Mercedes C Becerra, Emily R Smith, Alayne G Ronnenberg, Carmen Contreras, Rosa Yataco, Leonid Lecca, Megan B Murray
Background: Low and deficient levels of vitamin A are common in low and middle income countries where tuberculosis (TB) burden is high. We assessed the impact of baseline levels of vitamins A and carotenoids on TB disease risk. Methods: We conducted a case-control study nested within a longitudinal cohort of household contacts of pulmonary TB cases in Lima, Peru. We defined cases as HIV-negative household contacts with blood samples who developed TB disease at least 15 days after enrollment of index patient...
May 20, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28531231/utility-of-th1-cell-immune-responses-for-distinguishing-active-tuberculosis-from-non-active-tuberculosis-a-case-control-study
#19
Lifan Zhang, Xinhe Cheng, Sainan Bian, Yanhua Song, Qiang Li, Mengqiu Gao, Yueqiu Zhang, Xiaochun Shi, Xiaoqing Liu
Currently available Interferon-γ release assay (IGRA) cannot reliably differentiate active TB (ATB) from non-active TB (non-ATB). A study was performed to evaluate the value of Mycobacterium tuberculosis (MTB) specific Th1 cell immune responses which test IFN-γ and IL-2 simultaneous for differentiating ATB from non-ATB. Forty-nine newly diagnosed inpatients with ATB (26 pulmonary TB and 23 extrapulmonary TB) were enrolled as the ATB group. Forty-five volunteers with latent tuberculosis infection (LTBI) and twenty with evidence of previous TB were enrolled during the same period as the non-ATB group...
2017: PloS One
https://www.readbyqxmd.com/read/28530759/a-dual-emission-probe-to-detect-moisture-and-water-in-organic-solvents-based-on-green-tb-3-post-coordinated-metal-organic-frameworks-with-red-carbon-dots
#20
Jing-Xing Wu, Bing Yan
Using p-phenylenediamine as a precursor, p-carbon dots (p-CDs) with strong red-light emission were encapsulated into a metal-organic framework (MOF) followed by introduction of green light-emitting Tb(3+) to form a two-color light-emitting hybrid (Tb(3+)@p-CDs/MOF). The as-prepared fluorescent-functionalized MOF not only maintained the excellent optical properties of p-CDs and Tb(3+) to give strong emission, but also had good chemical and physical properties. The chosen p-CDs were aggregated readily in water, which led to only very weak photoluminescence, whereas the opposite effect was noted in the organic solvents ethanol, dimethylformamide and cyclopropane...
May 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
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