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https://www.readbyqxmd.com/read/28550312/dependence-of-solidification-for-bi2te3-xsex-alloys-on-their-liquid-states
#1
Yuan Yu, Zhan Wu, Oana Cojocaru-Mirédin, Bin Zhu, Xiao-Yu Wang, Na Gao, Zhong-Yue Huang, Fang-Qiu Zu
The resistivity versus temperature (ρ-T) behaviours of liquid n-type Bi2Te3-x Se x (x = 0.3, 0.45 and 0.6) alloys are explored up to 1050 °C. A clear hump is observed on all ρ-T curves of the three studied Bi2Te3-x Se x melts during the heating process, which suggests that a temperature-induced liquid-liquid structural transition takes place in the melts. Based on this information, the solidification behaviours and microstructures of the alloys with different liquid states are investigated. The samples that experienced liquid structural transition show that the nucleation and growth undercooling degrees are conspicuously enlarged and the solidification time is shortened...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550249/avn-492-a-novel-highly-selective-5-ht6r-antagonist-preclinical-evaluation
#2
Alexandre V Ivachtchenko, Ilya Okun, Vladimir Aladinskiy, Yan Ivanenkov, Angela Koryakova, Ruben Karapetyan, Oleg Mitkin, Ramiz Salimov, Andrey Ivashchenko
Discovery of 5-HT6 receptor subtype and its exclusive localization within the central nervous system led to extensive investigations of its role in Alzheimer's disease, schizophrenia, and obesity. In the present study, we present preclinical evaluation of a novel highly-potent and highly-selective 5-HT6R antagonist, AVN-492. The affinity of AVN-492 to bind to 5-HT6R (Ki = 91 pM) was more than three orders of magnitude higher than that to bind to the only other target, 5-HT2BR, (Ki = 170 nM). Thus, the compound displayed great 5-HT6R selectivity against all other serotonin receptor subtypes, and is extremely specific against any other receptors such as adrenergic, GABAergic, dopaminergic, histaminergic, etc...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550039/a-phase-1-2-study-of-the-oral-proteasome-inhibitor-ixazomib-in-relapsed-or-refractory-light-chain-al-amyloidosis
#3
Vaishali Sanchorawala, Giovanni Palladini, Vishal Kukreti, Jeffrey A Zonder, Adam D Cohen, David C Seldin, Angela Dispenzieri, Arnaud Jaccard, Stefan O Schönland, Deborah Berg, Huyuan Yang, Neeraj Gupta, Ai-Min Hui, Raymond L Comenzo, Giampaolo Merlini
This phase 1/2 study assessed the safety, tolerability, and preliminary efficacy of the oral proteasome inhibitor (PI) ixazomib in patients with relapsed/refractory AL amyloidosis (RRAL). Ixazomib was administered to adult patients with RRAL after ≥1 prior line of therapy (including bortezomib) on days 1, 8, and 15 of 28-day cycles, for up to 12 cycles. Patients with less than partial response after 3 cycles received oral dexamethasone (40 mg, days 1-4) from cycle 4. A 3+3 dose-escalation phase was followed by 2 expansion cohorts (PI-naïve and PI-exposed patients) at the maximum tolerated dose (MTD)...
May 26, 2017: Blood
https://www.readbyqxmd.com/read/28549942/tissue-specific-expression-profile-of-some-immune-related-genes-in-labeo-rohita-to-edwardsiella-tarda-infection
#4
Sajal Kole, Deepika Anand, Rupam Sharma, Gayatri Tripathi, Makesh M, Rajendran Kv, Megha Kadam Bedekar
Rohu (Labeo rohita), an Indian Major Carp (IMC) is an economically important aquaculture species in India. Inspite of the technological advances, infectious diseases caused by viruses, bacteria and parasites have been a major limiting factor in the development and profitability of fish farms. At present, information regarding the immune status of the Indian major carps is limited. This lack of knowledge is a major impediment for establishment of effective preventive measures against broad spectrum of infectious agents...
May 23, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28549801/methanolic-extract-of-boswellia-serrata-exhibits-anti-cancer-activities-by-targeting-microsomal-prostaglandin-e-synthase-1-in-human-colon-cancer-cells
#5
Tayebe Ranjbarnejad, Massoud Saidijam, Shirin Moradkhani, Rezvan Najafi
BACKGROUND: Colorectal cancer (CRC) is the most common cancer. A proper method to reduce mortality of CRC is chemoprevention to prevent initiation and promotion of intestinal tumorgenesis. One of the promising and developing chemopreventive agents is natural compounds found in plants. Frankincense, the resin extract from the Boswellia specious, has been used in traditional and modern medicine for treating various diseases with very minimal side effects. In the current study, we investigated the anti-cancer activity of methanolic extract of Boswellia serrata (B...
May 23, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28549414/phase-i-ii-study-of-induction-chemotherapy-using-carboplatin-plus-irinotecan-and-sequential-thoracic-radiotherapy-trt-for-elderly-patients-with-limited-disease-small-cell-lung-cancer-ld-sclc-torg-0604
#6
Yuki Misumi, Hiroaki Okamoto, Jiichiro Sasaki, Noriyuki Masuda, Mari Ishii, Tsuneo Shimokawa, Yukio Hosomi, Yusuke Okuma, Makoto Nagamata, Takashi Ogura, Terufumi Kato, Masafumi Sata, Sakiko Otani, Akira Takakura, Koichi Minato, Yosuke Miura, Takuma Yokoyama, Saori Takata, Katsuhiko Naoki, Koshiro Watanabe
BACKGROUND: The role of irinotecan for elderly patients with LD-SCLC has been unclear, and the timing of TRT combined with chemotherapy has not been fully evaluated. METHODS: Patients aged > 70 years with untreated, measurable, LD-SCLC, performance status (PS) 0-2, and adequate organ function were eligible. Treatment consisted of induction with carboplatin on day 1 and irinotecan on days 1 and 8, every 21 days for 4 cycles, and sequential TRT (54Gy in 27 fractions)...
May 26, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28549183/pain-assessment-recommendations-for-women-made-by-women-a-mixed-methods-study
#7
Geoff P Bostick, Bruce D Dick, Mary Wood, Barbara Luckhurst, Julie Tschofen, Timothy W Wideman
Objective.:  To quantitatively describe women's priorities for pain assessment and qualitatively explain unique features of women's pain experiences. Design.:  Mixed-methods study that included a three-round Delphi study followed by in-depth interviews. Setting. : Clinical research study. Participants.:  Twenty-three women with chronic pain recruited from three women's pain treatment facilities and one interdisciplinary chronic pain clinic...
May 26, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28548367/sinularin-induces-oxidative-stress-mediated-g2-m-arrest-and-apoptosis-in-oral-cancer-cells
#8
Yung-Ting Chang, Chang-Yi Wu, Jen-Yang Tang, Chiung-Yao Huang, Chih-Chuang Liaw, Shih-Hsiung Wu, Jyh-Horng Sheu, Hsueh-Wei Chang
Soft corals-derived natural product, sinularin, was antiproliferative against some cancers but its effect and detailed mechanism on oral cancer cells remain unclear. The subject of this study is to examine the antioral cancer effects and underlying detailed mechanisms in terms of cell viability, oxidative stress, cell cycle analysis, and apoptosis analyses. In MTS assay, sinularin dose-responsively decreased cell viability of three oral cancer cells (Ca9-22, HSC-3, and CAL 27) but only little damage to oral normal cells (HGF-1)...
May 26, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28548148/diverse-configurations-of-columnar-liquid-crystals-in-cylindrical-nano-and-micropores
#9
Rui-Bin Zhang, Goran Ungar, Xiangbing Zeng, Zhihao Shen
Using 2D X-ray diffraction and AFM we studied the configuration, in cylindrical confinement, of hexagonal columnar phases that anchor homeotropically, i.e. with the columns normal to the pore wall. A wide range of pore diameters, from 20 nm to 100 μm, were explored by employing anodic alumina membranes and glass capillaries. The compounds used were a small discotic, hexakis(hexyloxy)triphenylene (HAT6), a large discotic hexa-peri-hexabenzocoronene (HBC), and a T-shaped bolaamphiphile, forming a honeycomb-type columnar phase...
May 26, 2017: Soft Matter
https://www.readbyqxmd.com/read/28547764/visibility-of-focal-liver-lesions-comparison-between-kupffer-phase-of-ceus-with-sonazoid-and-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri
#10
Woo Young Yang, Hee Sun Park, Young Jun Kim, Mi Hye Yu, Sung Il Jung, Hae Jeong Jeon
BACKGROUND: To investigate the agreement between Kupffer phase of Sonazoid contrast-enhanced sonography (CEUS) and hepatobiliary phase of gadoxetic acid-enhanced MRI in the evaluation of focal liver lesions (FLLs). METHODS: One hundred fifty-four FLLs in 154 patients who underwent both Sonazoid CEUS and gadoxetic acid-enhanced liver MRI were included in this retrospective study. FLL visibility on the Kupffer-phase images was graded as one (invisible or isoenhancing), two (vaguely visible or vaguely hypoenhancing), or three (clearly visible or clearly hypoenhancing), and that on the hepatobiliary-phase images of MRI was graded as one (invisible or hyper/isointense), two (vaguely visible or weakly hypointense), or three (clearly visible or strongly hypointense)...
May 26, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28547525/neoadjuvant-chemotherapy-with-trastuzumab-docetaxel-and-carboplatin-administered-every-3%C3%A2-weeks-for-japanese-women-with-her2-positive-primary-breast-cancer-efficacy-and-safety
#11
Ikuko Sugitani, Shigeto Ueda, Takashi Sakurai, Takashi Shigekawa, Eiko Hirokawa, Hiroko Shimada, Hideki Takeuchi, Kazuo Matsuura, Misono Misumi, Nobuko Fujiuchi, Takao Takahashi, Takahiro Hasebe, Akihiko Osaki, Toshiaki Saeki
BACKGROUND: This phase II neoadjuvant study evaluated the efficacy and safety of a triweekly regimen of docetaxel and carboplatin in combination with trastuzumab (TCbH) in Japanese women with human epidermal growth factor receptor type2 (HER2)-positive primary breast cancer. METHODS: Patients with HER2-positive, stage I-III invasive breast cancer received six courses of trastuzumab (8 mg/kg loading dose, then 6 mg/kg, day 1), docetaxel (75 mg/m(2), day 1), and carboplatin (area under the curve: 6, day 1) every 3 weeks...
May 25, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28547247/a-new-tk-model-approach-to-assess-the-effect-of-migration-on-copper-toxicokinetics-in-inbred-populations-of-the-flour-beetle-tribolium-castaneum
#12
Sebastian Żmudzki, Natnael T Hamda, Patrycja Gibas-Tybur
The aim of the study was to determine the influence of migration on copper (Cu) kinetics of male Tribolium castaneum after 25 generations of exposure for Cu-adapted and non-Cu-adapted inbred lines. Adapted lines were kept on a flour medium contaminated with 1000 mg Cu kg(-1). A medium contaminated with 2000 mg Cu kg(-1) of copper was used during the intoxication phase. Based on our data and literature reports, we introduced a new two-phase four-stage toxicokinetics (TK) model. The intoxication phase was successfully divided into three stages with separate assimilation rate constant (ka) and elimination rate constant (ke) values...
May 26, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28546897/structural-properties-and-thermal-stability-of-cobalt-and-chromium-doped-%C3%AE-mno2-nanorods
#13
Romana Cerc Korošec, Polona Umek, Alexandre Gloter, Jana Padežnik Gomilšek, Peter Bukovec
α-MnO2 nanorods were synthesized via the hydrothermal decomposition of KMnO4 in an acidic environment in the presence of Co(2+) and Cr(3+) ions. Reactions were carried out at three different temperatures: 90, 130 and 170 °C. All prepared samples exhibit a tetragonal MnO2 crystalline phase. SEM-EDS analysis shows that cobalt cations are incorporated to a higher degree into the MnO2 framework than chromium ions, and that the content of the dopant ions decreases with increasing reaction temperature. The oxidation of Co(2+) to Co(3+) during the reaction was proved by an XANES study, while EXAFS results confirm that both dopant ions substitute Mn(4+) in the center of an octahedron...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28546807/isolation-of-biologically-active-peptides-from-the-venom-of-japanese-carpenter-bee-xylocopa-appendiculata
#14
Hiroko Kawakami, Shin G Goto, Kazuya Murata, Hideaki Matsuda, Yasushi Shigeri, Tomohiro Imura, Hidetoshi Inagaki, Tetsuro Shinada
BACKGROUND: Mass spectrometry-guided venom peptide profiling is a powerful tool to explore novel substances from venomous animals in a highly sensitive manner. In this study, this peptide profiling approach is successfully applied to explore the venom peptides of a Japanese solitary carpenter bee, Xylocopa appendiculata (Hymenoptera: Apoidea: Apidae: Anthophila: Xylocopinae: Xylocopini). Although interesting biological effects of the crude venom of carpenter bees have been reported, the structure and biological function of the venom peptides have not been elucidated yet...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28546525/pazopanib-for-the-treatment-of-non-clear-cell-renal-cell-carcinoma-a-single-arm-open-label-multicenter-phase-ii-study
#15
Ki Sun Jung, Su Jin Lee, Se Hoon Park, Jae-Lyun Lee, Se-Hoon Lee, Jae Yun Lim, Jung Hun Kang, Suee Lee, Sun Young Rha, Kyung Hee Lee, Ho Young Kim, Ho Yeong Lim
Purpose: The optimal treatment strategy for patients with metastatic non-clear cell type renal cell carcinoma (nccRCC) remains unclear. Although several inhibitors of vascular endothelial growth factor have recently shown efficacy against nccRCC, the clinical benefit of pazopanib in nccRCC has not been analyzed. We therefore designed a single-arm, open-label, phase II study to determine the efficacy and safety of pazopanib in patients with nccRCC. Materials and Methods: Patients with locally advanced or metastatic nccRCC, except for collecting duct or sarcomatoid type, received 800mg/day of pazopanib daily until progression of disease or intolerable toxicity...
May 22, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28546463/a-phase-ii-study-of-everolimus-plus-oral-prednisone-in-patients-with-metastatic-renal-cell-cancer
#16
Cristian Lolli, Valentina Gallà, Giuseppe Schepisi, Domenico Barone, Salvatore Luca Burgio, Antonio Maugeri, Bernadette Vertogen, Dino Amadori, Ugo De Giorgi
LESSONS LEARNED: The combination of everolimus and low-dose prednisone administered daily was hypothesized to prevent noninfectious pneumonitis (NIP) and mucositis, two common adverse events related to everolimus. Although mucositis was detected in only one case, all-grade NIP occurred in four of eight cases (50%), and this was considered enough to stop accrual of the study.These data suggest the need for careful monitoring of patients receiving everolimus who are treated with corticosteroids...
May 25, 2017: Oncologist
https://www.readbyqxmd.com/read/28546097/10-years-of-denosumab-treatment-in-postmenopausal-women-with-osteoporosis-results-from-the-phase-3-randomised-freedom-trial-and-open-label-extension
#17
Henry G Bone, Rachel B Wagman, Maria L Brandi, Jacques P Brown, Roland Chapurlat, Steven R Cummings, Edward Czerwiński, Astrid Fahrleitner-Pammer, David L Kendler, Kurt Lippuner, Jean-Yves Reginster, Christian Roux, Jorge Malouf, Michelle N Bradley, Nadia S Daizadeh, Andrea Wang, Paula Dakin, Nicola Pannacciulli, David W Dempster, Socrates Papapoulos
BACKGROUND: Long-term safety and efficacy of osteoporosis treatment are important because of the chronic nature of the disease. We aimed to assess the long-term safety and efficacy of denosumab, which is widely used for the treatment of postmenopausal women with osteoporosis. METHODS: In the multicentre, randomised, double-blind, placebo-controlled, phase 3 FREEDOM trial, postmenopausal women aged 60-90 years with osteoporosis were enrolled in 214 centres in North America, Europe, Latin America, and Australasia and were randomly assigned (1:1) to receive 60 mg subcutaneous denosumab or placebo every 6 months for 3 years...
May 22, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28546090/safety-and-tolerability-of-long-acting-cabotegravir-injections-in-hiv-uninfected-men-eclair-a-multicentre-double-blind-randomised-placebo-controlled-phase-2a-trial
#18
Martin Markowitz, Ian Frank, Robert M Grant, Kenneth H Mayer, Richard Elion, Deborah Goldstein, Chester Fisher, Magdalena E Sobieszczyk, Joel E Gallant, Hong Van Tieu, Winkler Weinberg, David A Margolis, Krischan J Hudson, Britt S Stancil, Susan L Ford, Parul Patel, Elizabeth Gould, Alex R Rinehart, Kimberly Y Smith, William R Spreen
BACKGROUND: Cabotegravir (GSK1265744) is an HIV-1 integrase strand transfer inhibitor with potent antiviral activity and a long half-life when administered by injection that prevented simian-HIV infection upon repeat intrarectal challenge in male macaques. We aimed to assess the safety, tolerability, and pharmacokinetics of long-acting cabotegravir injections in healthy men not at high risk of HIV-1 infection. METHODS: We did this multicentre, double-blind, randomised, placebo-controlled, phase 2a trial at ten sites in the USA...
May 22, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28545446/whole-genome-sequencing-reveals-within-host-genetic-changes-in-paired-meningococcal-carriage-isolates-from-ethiopia
#19
Guro K Bårnes, Ola Brønstad Brynildsrud, Bente Børud, Bereket Workalemahu, Paul A Kristiansen, Demissew Beyene, Abraham Aseffa, Dominique A Caugant
BACKGROUND: Meningococcal colonization is a prerequisite for transmission and disease, but the bacterium only very infrequently causes disease while asymptomatic carriage is common. Carriage is highly dynamic, showing a great variety across time and space within and across populations, but also within individuals. The understanding of genetic changes in the meningococcus during carriage, when the bacteria resides in its natural niche, is important for understanding not only the carriage state, but the dynamics of the entire meningococcal population...
May 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28545217/a-miniature-bird-borne-passive-air-sampler-for-monitoring-halogenated-flame-retardants
#20
Manon Sorais, Ali Rezaei, Joseph O Okeme, Miriam L Diamond, Ricardo Izquierdo, Jean-François Giroux, Jonathan Verreault
Birds have been used intensively as biomonitors of halogenated flame retardants (HFRs), and several studies have reported elevated tissue concentrations and inter-individual variability for these contaminants. While diet is known to be an important exposure pathway for HFRs in birds, it has been suggested that exposure through air may represent an underestimated source of HFRs for certain species. However, a method was not available for measuring the atmospheric exposure of individual birds to HFRs or other semi-volatile contaminants...
May 21, 2017: Science of the Total Environment
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