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https://www.readbyqxmd.com/read/28719949/seroprevalence-of-toxoplasmosis-with-elisa-and-rapid-diagnostic-test-among-residents-in-gyodong-do-inchon-city-korea-a-four-year-follow-up
#1
Yeong Hoon Kim, Ji Hoo Lee, Seong Kyu Ahn, Tong-Soo Kim, Sung-Jong Hong, Chom-Kyu Chong, Hye-Jin Ahn, Ho-Woo Nam
ELISA has been used for the diagnosis of toxoplasmosis, but it is being gradually replaced by a rapid diagnostic test (RDT). We compared and analyzed ELISA and RDT results using the sera collected during 4 consecutive years from residents of Gyodong-do (Island), Incheon-city, Korea. Sera from 921, 993, 940, and 838 adult residents were collected on a yearly basis (2010-2013). ELISA was performed by using a crude extract of T. gondii RH strain antigen and IgG/IgM RDT mounted with recombinant fragment of major surface antigen (SAG1), GST-linker-SAG1A, were applied to the sera...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719727/the-ability-of-a-single-bmd-and-fracture-history-assessment-to-predict-fracture-over-25-years-in-postmenopausal-women-the-study-of-osteoporotic-fractures
#2
Dennis M Black, Jane A Cauley, Rachel Wagman, Kristine Ensrud, Howard A Fink, Teresa A Hillier, Li-Yung Lui, Steven R Cummings, John T Schousboe, Nicola Napoli
The ability of bone mineral density (BMD) and other risk factors to predict fracture risk is well-established for as long as 5 to 10 years. However, their value to predict risk over a longer term has not been directly studied. We investigated whether a single assessment of femoral neck BMD and fracture history can predict fracture risk over 20 to 25 years. We used data from the Study of Osteoporotic Fractures (SOF) that assessed BMD and risk factors in 7959 women age ≥67 (mean = 73.4) in 1988-1990. Follow-up for fractures continued for 25 years for hip fracture, and for 20 years for any nonvertebral fracture...
July 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28719288/evaluation-of-the-protective-effect-of-deoxyribonucleic-acid-vaccines-encoding-granule-antigen-2-and-5-against-acute-toxoplasmosis-in-balb-c-mice
#3
Xiao Teng Ching, Mun Yik Fong, Yee Ling Lau
AbstractToxoplasma gondii infects a broad range of warm-blooded hosts, including humans. Important clinical manifestations include encephalitis in immunocompromised patients as well as miscarriage and fetal damage during early pregnancy. Toxoplasma gondii dense granule antigen 2 and 5 (GRA2 and GRA5) are essential for parasitophorous vacuole development of the parasite. To evaluate the potential of GRA2 and GRA5 as recombinant DNA vaccine candidates, these antigens were cloned into eukaryotic expression vector (pcDNA 3...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28715214/exploiting-carbonyl-groups-to-control-intermolecular-rhodium-catalyzed-alkene-and-alkyne-hydroacylation
#4
Thomas J Coxon, Maitane Fernández, James Barwick-Silk, Alasdair I McKay, Louisa E Britton, Andrew S Weller, Michael C Willis
Readily available β-carbonyl-substituted aldehydes are shown to be exceptional substrates for Rh-catalyzed intermolecular alkene and alkyne hydroacylation reactions. By using cationic rhodium catalysts incorporating bisphosphine ligands, efficient and selective reactions are achieved for β-amido, β-ester, and β-keto aldehyde substrates, providing a range of synthetically useful 1,3-dicarbonyl products in excellent yields. A correspondingly broad selection of alkenes and alkynes can be employed. For alkyne substrates, the use of a catalyst incorporating the Ampaphos ligand triggers a regioselectivity switch, allowing both linear and branched isomers to be prepared with high selectivity in an efficient manner...
July 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28715201/rational-design-of-s-uio-66-go-hybrid-nanosheets-for-proton-exchange-membranes-with-significantly-enhanced-transport-performance
#5
Huazhen Sun, Beibei Tang, Peiyi Wu
Metal-organic frameworks (MOFs) are being intensively explored as filler materials for polymeric proton exchange membranes (PEMs) due to their potentials for the systematic design and modification of proton-conducting properties. S-UiO-66, a stable MOF with functional groups of -SO3H in its ligands, was selected here to prepare S-UiO-66@graphene oxide (GO) hybrid nanosheets via facile in situ growth procedure, and then a series of composite PEMs were prepared by hybridizing S-UiO-66@GO and sulfonated poly(ether ether ketone) (SPEEK)...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28715179/chemoselective-asymmetric-intramolecular-dearomatization-of-phenols-with-%C3%AE-diazoacetamides-catalyzed-by-silver-phosphate
#6
Hiroki Nakayama, Shingo Harada, Masato Kono, Tetsuhiro Nemoto
We report an asymmetric dearomatization of phenols using Ag carbenoids generated from α-diazoacetamides. The Ag catalyst preferentially promoted an intramolecular dearomatization of phenols, while a Rh or Cu catalyst caused a C-H insertion and a Büchner reaction. Experimental and computational studies indicated the Ag carbenoids have a carbocation-like character, making their behavior and properties quite unique. Highly enantioselective transformations using Ag carbenoids have not yet been reported. We achieved a Ag carbenoid-mediated chemo- and highly enantioselective phenol dearomatization with broad substrate generality for the first time...
July 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28715034/surface-chemistry-and-stability-of-metastable-corundum-type-in2o3
#7
Eva-Maria Köck, Michaela Kogler, Chen Zhuo, Lukas Schlicker, Maged F Bekheet, Andrew Doran, Aleksander Gurlo, Simon Penner
To account for the explanation of an eventual sensing and catalytic behavior of rhombohedral In2O3 (rh-In2O3) and the dependence of the metastability of the latter on gas atmospheres, in situ electrochemical impedance spectroscopic (EIS), Fourier-transform infrared spectroscopic (FT-IR), in situ X-ray diffraction and in situ thermogravimetric analyses in inert (helium) and reactive gases (hydrogen, carbon monoxide and carbon dioxide) have been conducted to link the gas-dependent electrical conductivity features and the surface chemical properties to its metastability towards cubic In2O3...
July 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28714468/high-order-harmonic-generation-from-the-dressed-autoionizing-states
#8
M A Fareed, V V Strelkov, N Thiré, S Mondal, B E Schmidt, F Légaré, T Ozaki
In high-order harmonic generation, resonant harmonics (RH) are sources of intense, coherent extreme-ultraviolet radiation. However, intensity enhancement of RH only occurs for a single harmonic order, making it challenging to generate short attosecond pulses. Moreover, the mechanism involved behind such RH was circumstantial, because of the lack of direct experimental proofs. Here, we demonstrate the exact quantum paths that electron follows for RH generation using tin, showing that it involves not only the autoionizing state, but also a harmonic generation from dressed-AIS that appears as two coherent satellite harmonics at frequencies ±2Ω from the RH (Ω represents laser frequency)...
July 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28713115/association-between-cheiloscopic-patterns-and-abo-blood-groups-among-south-indian-population
#9
Sneha Khanapure, H G Suhas, Shrudha Potdar, George Sam, C B Sudeep, M R Arjun
BACKGROUND: Human beings have few characteristics that are unique from others. Lip prints are one of such feature. They are not changed throughout the life and are not influenced by injuries, diseases, or environmental changes. According to the various antigen-antibody reactions in the bloodstream, different individuals have specific blood groups. AIM: To study the distribution of lip print patterns among individuals with different ABO and Rh blood groups and also to know the relation between their characters and blood groups...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28712183/association-of-abo-and-rh-blood-group-types-to-hepatitis-b-hepatitis-c-hiv-and-syphilis-infection-a-five-year-experience-in-healthy-blood-donors-in-a-tertiary-care-hospital
#10
Zufishan Batool, Saadia Haroon Durrani, Shazia Tariq
BACKGROUND: Aim of the study: The aim of the study was to find out the frequency of Hepatitis B Hepatitis C, Syphilis, HIV and malaria in apparently healthy blood donors and to find out any association between ABO and Rh blood groups. METHODS: It was a descriptive study carried out at Rehman Medical Institute laboratory. All blood donors who volunteered for blood donation from Jan 2008 to Dec 2014 were reviewed for blood groups and screening tests. Those who were eligible were then screened for Hepatitis B, Hepatitis C, HIV, syphilis and malaria on Architect 8200i through chemiluminescent immunoassay whereas malaria was screened by a thin film...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28710935/measurement-of-isomeric-yield-ratios-of-99m-g-101m-g-102m-g-rh-in-the-nat-pd-%C3%AE-pxn-reactions-with-the-bremsstrahlung-end-point-energies-of-50-70mev
#11
Nguyen Van Do, Pham Duc Khue, Kim Tien Thanh, Nguyen Thi Hien, Guinyun Kim, Kwangsoo Kim, Sung-Gyun Shin, Yong-Uk Kye, Moo-Hyun Cho
The isomeric yield ratios of (99m,g)Rh, (101m,gg)Rh, and (102m,g)Rh isomeric pairs produced from the (nat)Pd(γ,pxn) reactions were measured with the bremsstrahlung end-point energies of 50-, 55-, 60-, 65-, and 70-MeV at the 100MeV electron linac of the Pohang Accelerator Laboratory, Korea. The measurements were carried out with the activation method in combination with off-line γ-ray spectrometry. In order to improve the accuracy of the activity measurements, the separation of the overlapping γ-rays and the necessary corrections for the counting losses were made...
June 20, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28710375/electric-field-control-of-magnetization-direction-across-the-antiferromagnetic-to-ferromagnetic-transition
#12
Guohui Zheng, San-Huang Ke, Maosheng Miao, Jinwoong Kim, R Ramesh, Nicholas Kioussis
Electric-field-induced magnetic switching can lead to a new paradigm of ultra-low power nonvolatile magnetoelectric random access memory (MeRAM). To date the realization of MeRAM relies primarily on ferromagnetic (FM) based heterostructures which exhibit low voltage-controlled magnetic anisotropy (VCMA) efficiency. On the other hand, manipulation of magnetism in antiferromagnetic (AFM) based nanojunctions by purely electric field means (rather than E-field induced strain) remains unexplored thus far. Ab initio electronic structure calculations reveal that the VCMA of ultrathin FeRh/MgO bilayers exhibits distinct linear or nonlinear behavior across the AFM to FM metamagnetic transition depending on the Fe- or Rh-interface termination...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28709940/investigation-of-l-leucine-in-reducing-the-moisture-induced-deterioration-of-spray-dried-salbutamol-sulfate-power-for-inhalation
#13
Liang Li, Sharon Shui Yee Leung, Thomas Gengenbach, Jiaqi Yu, Ge Fiona Gao, Patricia Tang, Qi Tony Zhou, Hak-Kim Chan
The aim of this study was to investigate the ability of L-leucine (LL) in preventing moisture-induced deterioration in the in vitro aerosolization performance of spray-dried (SD) salbutamol sulfate (SS). Increasing mass fraction of LL (5-80%) were co-spray dried with SS, and the physicochemical properties of the powders were characterized by laser diffraction, X-ray powder diffraction (XRD) and dynamic vapour sorption (DVS). Furthermore, the surface morphology and chemistry of fine particles was analyzed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS)...
July 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28709379/structure-of-supported-and-unsupported-catalytic-rh-nanoparticles-effects-on-nucleation-of-single-walled-carbon-nanotubes
#14
Jose Leonardo Gomez-Ballesteros, Perla B Balbuena
Achieving a better control of the nucleation and growth of single-walled carbon nanotubes requires understanding of the changes in the catalyst structure and the interfacial phenomena occurring at the solid surface and the gaseous phase from the early stages of the synthesis process. Carbon nanotubes produced by chemical vapor deposition typically use carbon-philic metal catalysts such as Fe, Ni and Co, in which both surface C and dissolved C atoms contribute to the nanotube formation. We use density functional theory to investigate the interactions of Rh, a noble metal, with carbon both as individual atoms gradually deposited on the catalyst surface from the precursor gas decomposition and as a nucleating seed adhered to the catalyst...
July 14, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28708864/abnormal-lateralization-of-fine-motor-actions-in-tourette-syndrome-persists-into-adulthood
#15
D Martino, C Delorme, E Pelosin, A Hartmann, Y Worbe, L Avanzino
Youth with Tourette syndrome (TS) exhibit, compared to healthy, abnormal ability to lateralize digital sequential tasks. It is unknown whether this trait is related to inter-hemispheric connections, and whether it is preserved or lost in patients with TS persisting through adult life. We studied 13 adult TS patients and 15 age-matched healthy volunteers. All participants undertook: 1) a finger opposition task, performed with the right hand (RH) only or with both hands, using a sensor-engineered glove in synchrony with a metronome at 2 Hz; we calculated a lateralization index [(single RH-bimanual RH)/single RH X 100) for percentage of correct movements (%CORR); 2) MRI-based diffusion tensor imaging and probabilistic tractography of inter-hemispheric corpus callosum (CC) connections between supplementary motor areas (SMA) and primary motor cortices (M1)...
2017: PloS One
https://www.readbyqxmd.com/read/28708115/crystal-structure-analysis-of-the-first-discovered-stability-enhanced-solid-state-of-tenofovir-disoproxil-free-base-using-single-crystal-x-ray-diffraction
#16
Ji-Hun An, Alice Nguvoko Kiyonga, Woojin Yoon, Hyung Chul Ryu, Jae-Sun Kim, Chaeri Kang, Minho Park, Hoseop Yun, Kiwon Jung
Tenofovir disoproxil (TD), an anti-virus drug, is currently marketed under its most stable form, Form-I of Tenofovir disoproxil fumarate (TDF). However, studies regarding the properties of TD free base crystal as a promising drug as well as its crystal structure have not yet been reported. This assumption was made because TD free base is not directly produced in a solid form during the manufacturing process. TD free base is first obtained in an oil form, and is then synthesized into TDF crystal. In this regard, the present study was conducted to investigate both the potentiality of TD free base to be an active pharmaceutical ingredient (API) and its crystal structure...
July 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28706518/immunization-with-toxoplasma-gondii-gra17-deletion-mutant-induces-partial-protection-and-survival-in-challenged-mice
#17
Jin-Lei Wang, Hany M Elsheikha, Wei-Ning Zhu, Kai Chen, Ting-Ting Li, Dong-Mei Yue, Xiao-Xuan Zhang, Si-Yang Huang, Xing-Quan Zhu
Toxoplasmosis remains a world-threatening disease largely because of the lack of a fully effective vaccine. Here, we created a ΔGRA17 mutant by disrupting the virulence factor GRA17 using CRISPR-Cas9 method. Then, we tested whether ΔGRA17 tachyzoites can be used as a live-attenuated vaccine against acute, chronic, and congenital Toxoplasma gondii infection in mice. Immune response evoked by ΔGRA17 immunization suggested a sequential Th1 and Th2 T cell response, indicated by high levels of Th1 and a mixed Th1/Th2 cytokines at 28 and 70 days after immunization, respectively...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28705623/water-induced-phase-separation-of-miconazole-poly-vinylpyrrolidone-co-vinyl-acetate-amorphous-solid-dispersions-insights-with-confocal-fluorescence-microscopy
#18
Sugandha Saboo, Lynne S Taylor
The aim of this study was to evaluate the utility of confocal fluorescence microscopy (CFM) to study the water-induced phase separation of miconazole-poly (vinylpyrrolidone-co-vinyl acetate) (mico- PVPVA) amorphous solid dispersions (ASDs), induced during preparation, upon storage at high relative humidity (RH) and during dissolution. Different fluoresecent dyes were added to drug-polymer films and the location of the dyes was evaluated using CFM. Orthogonal techniques, in particular atomic force microscopy (AFM) coupled with nanoscale infrared spectroscopy (AFM-nanoIR), were used to provide additional analysis of the drug-polymer blends...
July 10, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28704971/isolation-and-characterization-of-aphidicolin-derivatives-from-tolypocladium-inflatum
#19
Jie Lin, Shubin Niu, Zhengfeng Ding, Renlei Wang, Qun Dai, Wei Wei, Rongrong Luo, Ling Liu
Inflatin G (1), a new aphidicolin analogue, together with seven known compounds inflatin A (2), inflatin B (3), aphidicolin (4), aphidicolin-17-monoacetate (5), gulypyrone A (6), pyridoxatin rotamers A (7) and B (8), were isolated from the ascomycete fungus Tolypocladium inflatum. Their structures were determined through NMR analyses and the circular dichroism data of the in situ formed [Rh₂(OCOCF₃)₄] complexes. Compounds 1, 4, 5, 7, and 8 showed modest cytotoxicity against four human cancer cell lines A549, CNE1-MP1, A375, and MCF-7...
July 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28702555/molecular-conductors-from-bis-ethylenedithio-tetrathiafulvalene-with-tris-oxalato-rhodate
#20
Lee Martin, Alexander L Morritt, Jordan R Lopez, Yasuhiro Nakazawa, Hiroki Akutsu, Shusaku Imajo, Yoshihiko Ihara, Bin Zhang, Yan Zhang, Yanjun Guo
This article reports a family of new radical-cation salts of bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) with tris(oxalato)rhodate: three salts with the formula β''-(BEDT-TTF)4[(cation)Rh(C2O4)3]·solvent (solvent = fluorobenzene, chlorobenzene, or bromobenzene) and one with the formula pseudo-κ-(BEDT-TTF)4[(NH4)Rh(C2O4)3]·benzonitrile. We report here the syntheses, crystal structures, electrical properties and Raman spectroscopy of these new molecular conductors. The bromobenzene salt shows a decrease in resistivity below 2...
July 12, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
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