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https://www.readbyqxmd.com/read/28938717/the-authors-reply
#1
Reza Ghiasvand, Corina S Rueegg, Elisabete Weiderpass, Adele C Green, Eiliv Lund, Marit B Veierød
No abstract text is available yet for this article.
September 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28938619/anti-cancer-efficacy-of-biotinylated-chitosan-nanoparticles-in-liver-cancer
#2
Mingrong Cheng, Weiping Zhu, Qing Li, Dejian Dai, Yiming Hou
The present study investigated the synthesis of biotinylated chitosan (Bio-CS) from chitosan using a nanomaterial skeleton with biotin and the successful targeting of the formulation in liver cancer cells. Bio-CS was validated by fourier transformed infrared spectroscopy and hydrogen(-1) nuclear magnetic resonance spectroscopy. Bio-CS and plasmid DNA were used to construct Bio-CS/plasmid DNA nanoparticles according to the optimal molar ratio of 1:1 and the optimal pH-value of 5.5. Under these conditions, the parameters mean particle size, potential, encapsulation rate and drug loading, were 82...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938517/green-tea-camellia-sinensis-and-l-theanine-medicinal-values-and-beneficial-applications-in-humans-a-comprehensive-review
#3
REVIEW
Muhammad Saeed, Muhammad Naveed, Muhammad Arif, Mohib Ullah Kakar, Robina Manzoor, Mohamed Ezzat Abd El-Hack, Mahmoud Alagawany, Ruchi Tiwari, Rekha Khandia, Ashok Munjal, Kumaragurubaran Karthik, Kuldeep Dhama, Hafiz M N Iqbal, Maryam Dadar, Chao Sun
Green tea (Camellia sinensis) is a famous herb, and its extract has been extensively used in traditional Chinese medicinal system. In this context, several studies have revealed its health benefits and medicinal potentialities for several ailments. With ever increasing scientific knowledge, search for safer, potential and novel type of health-related supplements quest, scientists are re-directing their research interests to explore natural resources i.e. medicinal herbs/plant derived compounds. Green tea consumption has gained a special attention and popularity in the modern era of changing lifestyle...
September 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28938492/a-long-noncoding-rna-lncrna-amhr2-plays-a-role-in-amhr2-gene-activation-in-mouse-ovarian-granulosa-cells
#4
Atsushi P Kimura, Ryoma Yoneda, Misuzu Kurihara, Shota Mayama, Shin Matsubara
Anti-Müllerian hormone (AMH) is critical to the regression of Müllerian ducts during mammalian male differentiation and targets ovarian granulosa cells and testicular Sertoli and Leydig cells of adults. Specific effects of AMH are exerted via its receptor, AMH type II receptor (Amhr2), but the mechanism by which the Amhr2 gene is specifically activated is not fully understood. To see whether a proximal promoter was sufficient to Amhr2 gene activation, we generated transgenic mice that bore the enhanced green fluorescent protein (EGFP) gene driven by a 500-bp mouse Amhr2 gene promoter...
September 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938398/long-term-recordings-of-arcuate-nucleus-kisspeptin-neurons-reveal-patterned-activity-that-is-modulated-by-gonadal-steroids-in-male-mice
#5
Charlotte Vanacker, Manuel Ricu Moya, R Anthony DeFazio, Michael L Johnson, Suzanne M Moenter
Pulsatile release of GnRH is key to fertility. Pulse frequency is modulated by gonadal steroids and likely arises subsequent to coordination of GnRH neuron firing activity. The source of rhythm generation and the site of steroid feedback remain critical unanswered questions. Arcuate neurons that synthetize kisspeptin, neurokinin B and dynorphin (KNDy neurons) may be involved in both of these processes. We tested the hypotheses that action potential firing in KNDy neurons is episodic and that gonadal steroids regulate this pattern...
July 28, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938217/deriving-nitrogen-critical-levels-and-loads-based-on-the-responses-of-acidophytic-lichen-communities-on-boreal-urban-pinus-sylvestris-trunks
#6
Sirkku Manninen
The deposition of reactive nitrogen (N) compounds currently predominates over sulphur (S) deposition in most of the cities in Europe and North America. Acidophytic lichens growing on tree trunks are known to be sensitive to both N and S deposition. Given that tree species and climatic factors affect the composition of epiphytic lichen communities and modify lichen responses to air pollution, this study focused on the impact of urban air pollution on acidophytes growing on boreal conifer trunks. The study was performed in the Helsinki metropolitan area, southern Finland, where annual mean nitrogen dioxide (NO2) concentrations range from 4-5μgm(-3) to >50μgm(-3)...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938204/natural-outdoor-environments-and-mental-health-stress-as-a-possible-mechanism
#7
Margarita Triguero-Mas, David Donaire-Gonzalez, Edmund Seto, Antònia Valentín, David Martínez, Graham Smith, Gemma Hurst, Glòria Carrasco-Turigas, Daniel Masterson, Magdalena van den Berg, Albert Ambròs, Tania Martínez-Íñiguez, Audrius Dedele, Naomi Ellis, Tomas Grazulevicius, Martin Voorsmit, Marta Cirach, Judith Cirac-Claveras, Wim Swart, Eddy Clasquin, Annemarie Ruijsbroek, Jolanda Maas, Michael Jerret, Regina Gražulevičienė, Hanneke Kruize, Christopher J Gidlow, Mark J Nieuwenhuijsen
INTRODUCTION: Better mental health has been associated with exposure to natural outdoor environments (NOE). However, comprehensive studies including several indicators of exposure and outcomes, potential effect modifiers and mediators are scarce. OBJECTIVES: We used novel, objective measures to explore the relationships between exposure to NOE (i.e. residential availability and contact) and different indicators of mental health, and possible modifiers and mediators...
September 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28938203/green-synthesis-biological-and-spectroscopic-study-on-the-interaction-of-multi-component-mannich-bases-of-imidazo-2-1-b-benzothiazoles-with-human-serum-albumin
#8
Swetha K Maddili, Leela Prasad Yandrati, Shakuntala Siddam, Vijaya Kumar Kannekanti, Himabindu Gandham
A series of Mannich bases of imidazo[2, l-b]benzothiazoles were prepared through one-pot multi-component reaction in the presence of water as an eco-friendly solvent. All the synthesized compounds were confirmed from IR, (1)HNMR, (13)CNMR, and Mass spectroscopy. Evaluation of in vitro anti-inflammatory and anti-microbial activities of all the synthesized derivatives was further accomplished. These results clearly displayed that compound 6d exhibited outstanding anti-inflammatory activity with a percentage inhibition of 70...
August 19, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28938168/energy-transfer-and-color-tunable-emission-in-tb-3-eu-3-co-doped-sr3lana-po4-3f-phosphors
#9
Shuo Li, Ning Guo, Qimeng Liang, Yu Ding, Huitao Zhou, Ruizhuo Ouyang, Wei Lü
A group of color tunable Sr3LaNa(PO4)3F:Tb(3+),Eu(3+) phosphors were prepared by conventional high temperature solid state method. The phase structures, luminescence properties, fluorescence lifetimes and energy transfer were investigated in detail. Under 369nm excitation, owing to efficient energy transfer of Tb(3+)→Eu(3+), the emission spectra both have green emission of Tb(3+) and red emission of Eu(3+). An efficient energy transfer occur in Tb(3+), Eu(3+) co-doped Sr3LaNa(PO4)3F phosphors. The most possible mechanism of energy transfer is dipole-dipole interaction by Dexter's theoretical model...
September 18, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28938155/nickel-accumulation-by-the-green-algae-like-euglena-gracilis
#10
J D García-García, K A Peña-Sanabria, R Sánchez-Thomas, R Moreno-Sánchez
Nickel accumulation and nickel effects on cellular growth, respiration, photosynthesis, ascorbate peroxidase (APX) activity, and levels of thiols, histidine and phosphate-molecules were determined in Euglena gracilis. Cells incubated with 0.5-1mM NiCl2 showed impairment of O2 consumption, photosynthesis, Chl a+b content and APX activity whereas cellular integrity and viability were unaltered. Nickel accumulation was depressed by Mg(2+) and Cu(2+), while Ca(2+), Co(2+), Mn(2+) and Zn(2+) were innocuous. The growth half-inhibitory concentrations for Ni(2+) in the culture medium supplemented with 2 or 0...
September 7, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28937970/spectroscopy-and-enhanced-frequency-upconversion-in-nd-3-yb-3-codoped-tpo-glasses-energy-transfer-and-nir-to-visible-upconverter
#11
Mohd Azam, Vineet Kumar Rai, Deepak Kumar Mohanty
TeO2-Pb3O4 (TPO) glasses codoped with Nd(3+) and Yb(3+) ions have been fabricated by conventional melting technique. The absorption, emission and excitation spectra of the samples have been recorded. The optical band gap in both the doped/codoped glasses is found to be ∼3.31 eV. Judd-Ofelt analysis has been carried out by using the absorption spectrum of 0.8 mol% Nd(3+) doped glass to determine the radiative properties viz radiative transition probabilities, branching ratios, radiative lifetimes, quality factor and emission cross sections of some emitting levels for Nd(3+) ions...
September 22, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28937953/the-biological-basis-of-chronic-traumatic-encephalopathy-following-blast-injury-a-literature-review
#12
Matt Aldag, Regina C Armstrong, Faris Bandak, Patrick S F Bellgowan, Timothy Bentley, Sean Biggerstaff, Katrina Caravelli, Joan Cmarik, Alicia Crowder, Thomas J DeGraba, Travis A Dittmer, Richard G Ellenbogen, Colin Greene, Raj K Gupta, Ramona Hicks, Stuart Hoffman, Robert C Latta, Michael J Leggieri, Donald Marion, Robert Mazzoli, Michael McCrea, John O'Donnell, Mark Packer, James B Petro, Todd E Rasmussen, Wendy Sammons-Jackson, Richard Shoge, Victoria Tepe, Ladd A Tremaine, James Zheng
The United States Department of Defense Blast Injury Research Program Coordinating Office organized the 2015 International State-of-the-Science meeting to explore links between blast-related head injury and the development of chronic traumatic encephalopathy (CTE). Before the meeting, the planning committee examined articles published between 2005 and October 2015 and prepared this literature review, which summarized broadly CTE research and addressed questions about the pathophysiological basis of CTE and its relationship to blast- and nonblast-related head injury...
September 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28937855/eggshell-biliverdin-and-protoporphyrin-pigments-in-a-songbird-are-they-derived-from-erythrocytes-blood-plasma-or-the-shell-gland
#13
Rita Hargitai, Nóra Boross, Susanne Hámori, Eszter Neuberger, Zoltán Nyiri
Biliverdin and protoporphyrin pigments are deposited into the eggshell when the developing egg is in the shell gland. However, the site of synthesis of eggshell pigments is still uncertain, although it may influence the possible costs and potential functions of eggshell coloration in avian species. Eggshell pigments may be derived from red blood cells or be produced in other organs and then transferred to the shell gland, or they may be synthesized de novo in the shell gland. We studied in the canary (Serinus canaria) whether eggshell blue-green and brown pigmentations are associated with experimentally elevated anemia, female hematocrit level, immature erythrocyte percentage, and feces and plasma pigment levels during egg laying to find out the possible origin of eggshell pigments...
November 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28937833/oct-angiography-for-monitoring-and-managing-neovascular-age-related-macular-degeneration
#14
P Malamos, G Tsolkas, M Kanakis, G Mylonas, D Karatzenis, N Oikonomopoulos, J Lakoumentas, Ilias Georgalas
PURPOSE: To evaluate the combined use of optical coherence tomography and angiography (OCT-A) for imaging choroidal neovascularization (CNV) secondary to neovascular age-related macular degeneration (nAMD). MATERIALS AND METHODS: This prospective observational study was conducted from May 2015 to April 2017. Included in the study were 54 patients (n = 63 eyes), all of whom had CNV secondary to nAMD and all of whom had been examined by OCT-A. Angioscans (3x3 and 6 × 6) and conventional B-scan OCT scans were obtained for all patients at baseline and at various times during the 24-month follow-up period...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28937820/sex-allocation-patterns-across-cooperatively-breeding-birds-do-not-support-predictions-of-the-repayment-hypothesis
#15
Nyil Khwaja, Ben J Hatchwell, Robert P Freckleton, Jonathan P Green
The repayment hypothesis predicts that reproductive females in cooperative breeding systems overproduce the helping sex. Thanks to well-documented examples of this predicted sex ratio bias, repayment has been considered an important driver of variation in sex allocation patterns. Here we test this hypothesis using data on population brood sex ratios and facultative sex allocation from 28 cooperatively breeding bird species. We find that biased sex ratios of helpers do not correlate with production biases in brood sex ratios, contrary to predictions...
October 2017: American Naturalist
https://www.readbyqxmd.com/read/28937661/a-spectral-probe-for-detection-of-aluminum-iii-ions-using-surface-functionalized-gold-nanoparticles
#16
Surendra Shinde, Dae-Young Kim, Rijuta Ganesh Saratale, Asad Syed, Fuad Ameen, Gajanan Ghodake
A simple green route has been developed for the synthesis of casein peptide functionalized gold nanoparticles (AuNPs), in which casein peptide acts as a reducing as well as the stabilizing agent. In this report, AuNPs have been characterized on the basis of spectroscopic and microscopic results; which showed selective and sensitive response toward Al(3+) in aqueous media, and Al(3+) induces aggregation of AuNPs. The sensing study performed for Al(3+) revealed that the color change from red to blue was due to a red-shift in the surface plasmon resonance (SPR) band and the formation of aggregated species of AuNPs...
September 22, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28937630/hydrogen-bonding-interactions-in-luminescent-quinoline-triazoles-with-dominant-1d-crystals
#17
Shi-Qiang Bai, David James Young, T S Andy Hor
Quinoline-triazoles 2-((4-(diethoxymethyl)-1H-1,2,3-triazol-1-yl)methyl)quinoline (1), 2-((4-(m-tolyl)-1H-1,2,3-triazol-1-yl)methyl)quinoline (2) and 2-((4-(p-tolyl)-1H-1,2,3-triazol-1-yl)methyl)quinoline (3) have been prepared with CuAAC click reactions and used as a model series to probe the relationship between lattice H-bonding interaction and crystal direction of growth. Crystals of 1-3 are 1D tape and prism shapes that correlate with their intermolecular and solvent 1D lattice H-bonding interactions. All compounds were thermally stable up to about 200 C and blue-green emissive in solution...
September 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28937524/self-inflicted-laser-handheld-laser-induced-maculopathy-a-novel-ocular-manifestation-of-factitious-disorder
#18
Alessandro Rabiolo, Riccardo Sacconi, Chiara Giuffrè, Eleonora Corbelli, Adriano Carnevali, Lea Querques, David Sarraf, K Bailey Freund, SriniVas Sadda, Francesco Bandello, Giuseppe Querques
PURPOSE: To report a case of factitious self-inflicted handheld laser-induced maculopathy. METHODS: A 29-year-old man presented to our clinic complaining of a step-wise progressive loss of vision that abruptly began in his left eye but then became bilateral. He underwent comprehensive ocular examination, including visual acuity testing, biomicroscopic, dilated funduscopic examination, structural optical coherence tomography, en face structural optical coherence tomography, optical coherence tomography angiography, fundus autofluorescence, fluorescein angiography, and indocyanine green angiography...
September 19, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28937208/composition-dependent-morphology-of-bi-and-trimetallic-phosphides-construction-of-amorphous-pd-cu-ni-p-nanoparticles-as-a-selective-and-versatile-catalyst
#19
Ming Zhao, Yuan Ji, Mengyue Wang, Ning Zhong, Zinan Kang, Naoki Asao, Wen-Jie Jiang, Qiang Chen
Amorphous materials have been widely researched in heterogeneous catalysis and for next-generation batteries. However, the well-defined production of high-quality (e.g., monodisperse and high surface area) amorphous alloy nanomaterials has rarely been reported. In this work, we investigated the correlations among the composition, morphology, and catalysis of various Pd-M-P NPs (M = Cu or Ni), which indicated that less Cu (≤20 at%) was necessary for the formation of an amorphous morphology. The amorphous Pd-Cu-Ni-P NPs were fabricated with a controllable size and characterized carefully, which show excellent selective catalysis in the semi-hydrogenation of alkynes, hydrogenation of quinoline, and oxidation of primary alcohols...
September 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28937175/chiral-six-coordinate-dy-iii-and-tb-iii-complexes-of-an-achiral-ligand-structure-fluorescence-and-magnetism
#20
Mei-Jiao Liu, Juan Yuan, Yi-Quan Zhang, Hao-Ling Sun, Cai-Ming Liu, Hui-Zhong Kou
Two new chiral six-coordinate lanthanide complexes (1 for Dy and 2 for Tb) have been synthesized using the achiral flexible ligand H2L (2,2'-[1,2-ethanediylbis[(methylimino)methylene]]bis[4,5-dimethylphenol]). Both complexes crystallize in the chiral P1 group space, and the enantiomers [Zn(L)Cl]3Dy·MeOH·0.5H2O (Λ-1), [Zn(L)Cl]3Dy·1.5H2O (Δ-1), [Zn(L)Cl]3Tb·1.5H2O (Λ-2) and [Zn(L)Cl]3Tb·H2O (Δ-2) are isolated in the reaction. Three [Zn(L)Cl](-) anions coordinate to the central lanthanide ion using two phenoxo oxygen atoms of L(2-), and the lanthanide ion has the coordination geometry of D3...
September 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
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