keyword
MENU ▼
Read by QxMD icon Read
search

Star

keyword
https://www.readbyqxmd.com/read/28652939/sea-star-henricia-spiculifera-clark-1901-in-the-northwestern-pacific-one-species-or-three
#1
Anton Chichvarkhin
Three species of the sea stars are reported from the waters of the northwestern Pacific. These species were referred by earlier authors as Henricia spiculifera or H. leviuscula spiculifera. Two of them, H. lineata and H. uluudax, were recently described from the Aleutian Islands. These species are reported for the first time from the western Pacific (southeastern Kamchatka shore, Commander Islands, and the northern Kurile Islands). The third species, H. olga sp. n. is herein described from the northern Sea of Japan...
2017: PeerJ
https://www.readbyqxmd.com/read/28652584/mapping-the-glyco-gold-nanoparticles-of-different-shapes-toxicity-biodistribution-and-sequestration-in-adult-zebrafish
#2
Sivakoti Sangabathuni, Raghavendra Vasudeva Murthy, Preeti Madhukar Chaudhary, Balamurugan Subramani, Suraj Toraskar, Raghavendra Kikkeri
Glyconanotechnology offers a broad range of applications across basic and translation research. Despite the tremendous progress in glyco-nanomaterials, there is still a huge gap between the basic research and therapeutic applications of these molecules. It has been reported that complexity and the synthetic challenges in glycans synthesis, the cost of the high order in vivo models and large amount of sample consumptions limited the effort to translate the glyco-nanomaterials into clinical applications. In this regards, several promising simple animal models for preliminary, quick analysis of the nanomaterials activities has been proposed...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28652409/interaction-between-the-ph-and-start-domains-of-ceramide-transfer-protein-competes-with-phosphatidylinositol-4-phosphate-binding-by-the-ph-domain
#3
Jennifer Prashek, Samuel Bouyain, Mingui Fu, Yong Li, Dusan Berkes, Xiaolan Yao
De novo synthesis of the sphingolipid sphingomyelin requires non-vesicular transport of ceramide from the endoplasmic reticulum to the Golgi by the multidomain protein ceramide transfer protein (CERT). CERT's N-terminal pleckstrin homology (PH) domain targets it to the Golgi by binding to phosphatidylinositol 4-phosphate (PtdIns(4)P) in the Golgi membrane, while its C-terminal StAR-related lipid transfer domain (START) carries out ceramide transfer. Hyper-phosphorylation of a serine rich (SR) motif immediately following the PH domain decreases both PtdIns(4)P binding and ceramide transfer by CERT...
June 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28651475/high-frequency-ventilation-modalities-as-salvage-therapy-for-smoke-inhalation-associated-acute-lung-injury-a-systematic-review
#4
Andrew C Miller, Paula A Ferrada, Sameer S Kadri, Krupa Nataraj-Bhandari, Amir Vahedian-Azimi, Sadeq A Quraishi
BACKGROUND: Smoke inhalation-associated acute lung injury (SI-ALI) is a major cause of morbidity and mortality in victims of fire tragedies. To date, there are no evidence-based guidelines on ventilation strategies in acute respiratory distress syndrome (ARDS) after smoke inhalation. We reviewed the existing literature for clinical studies of salvage mechanical ventilation (MV) strategies in patients with SI-ALI, focusing on mortality and pneumonia as outcomes. METHODS: A systematic search was designed in accordance with preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28651331/il-1%C3%AE-up-regulates-star-and-progesterone-production-through-the-erk1-2-and-p38-mediated-creb-signaling-pathways-in-human-granulosa-lutein-cells
#5
Xuan Dang, Qinling Zhu, Yaqiong He, Yuan Wang, Yao Lu, Xiaoxue Li, Jia Qi, Hasiximuke Wu, Yun Sun
The pro-inflammatory cytokine interleukin-1β (IL-1β) may be involved in several ovulation-associated events, such as proteases synthesis, prostaglandin production and steroidogenesis in granulosa cells. However, the exact effect of IL-1β on progesterone synthesis in granulosa cells and the underlying mechanism remain unclear. By using cultured granulosa-lutein cells collected from women undergoing in vitro fertilization or intracytoplasmic sperm injection, we found that IL-1β up-regulated steroidogenic acute regulatory protein (StAR) expression and progesterone synthesis in granulosa-lutein cells, which was comparable with luteinizing hormone (LH) effect and could be abolished by an IL-1 receptor antagonist...
June 23, 2017: Endocrinology
https://www.readbyqxmd.com/read/28648683/reliability-and-validity-analyses-of-the-north-star-ambulatory-assessment-in-brazilian-portuguese
#6
Larissa O Okama, Lívia M Zampieri, Carina L Ramos, Flávia O Toledo, Cyntia R J Alves, Ana Cláudia Mattiello-Sverzut, Anna Mayhew, Cláudia F R Sobreira
The North Star Ambulatory Assessment measures motor performance in ambulatory boys with Duchenne muscular dystrophy, a hereditary and degenerative muscle disorder. To use the North Star Ambulatory Assessment in Brazilian boys, we performed the cross-cultural adaptation to the Portuguese language spoken in Brazil and evaluated the reliability and validity of the instrument. Cross-cultural adaptation included: independent translations, synthesis, committee review, pre-testing in 12 boys, back-translation and comparison with the original instrument...
May 26, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28648044/dendrons-and-multiarm-polymers-with-thiol-exchangeable-cores-a-reversible-conjugation-platform-for-delivery
#7
Ozgul Gok, Pelin Erturk, Burcu Sumer Bolu, Tugce Nihal Gevrek, Rana Sanyal, Amitav Sanyal
Disulfide exchange reaction has emerged as a powerful tool for reversible conjugation of proteins, peptides and thiol containing molecules to polymeric supports. In particular, the pyridyl disulfide group provides an efficient handle for the site-specific conjugation of therapeutic peptides and proteins bearing cysteine moieties. In this study, novel biodegradable dendritic platforms containing a pyridyl disulfide unit at their focal point were designed. Presence of hydroxyl groups at the periphery of these dendrons allows their elaboration to multivalent initiators that yield poly(ethylene glycol) based multiarm star polymers via controlled radical polymerization...
June 24, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28646874/cmsa-a-heterogeneous-cpu-gpu-computing-system-for-multiple-similar-rna-dna-sequence-alignment
#8
Xi Chen, Chen Wang, Shanjiang Tang, Ce Yu, Quan Zou
BACKGROUND: The multiple sequence alignment (MSA) is a classic and powerful technique for sequence analysis in bioinformatics. With the rapid growth of biological datasets, MSA parallelization becomes necessary to keep its running time in an acceptable level. Although there are a lot of work on MSA problems, their approaches are either insufficient or contain some implicit assumptions that limit the generality of usage. First, the information of users' sequences, including the sizes of datasets and the lengths of sequences, can be of arbitrary values and are generally unknown before submitted, which are unfortunately ignored by previous work...
June 24, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28643383/multiecho-pseudo-golden-angle-stack-of-stars-thermometry-with-high-spatial-and-temporal-resolution-using-k-space-weighted-image-contrast
#9
Bryant T Svedin, Allison Payne, Bradley D Bolster, Dennis L Parker
PURPOSE: Implement and evaluate a 3D MRI method to measure temperature changes with high spatial and temporal resolution and large field of view. METHODS: A multiecho pseudo-golden angle stack-of-stars (SOS) sequence with k-space weighted image contrast (KWIC) reconstruction was implemented to simultaneously measure multiple quantities, including temperature, initial signal magnitude M(0), transverse relaxation time ( T2*), and water/fat images. Respiration artifacts were corrected using self-navigation...
June 22, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28640963/a-truncated-molecular-star
#10
Soumyakanta Prusty, Kohei Yazaki, Michito Yoshizawa, Dillip Kumar Chand
Pentanuclear coordination complex assembled from palladium(II) component and non-chelating ligand(s) is hitherto unreported. The pentanuclear complex [Pd5(L1)5(L2)5](BF4)10, 1 that was prepared by the spontaneous complexation of [Pd(DMSO)4](BF4)2 with the non-chelating bidentate ligands 1,4-phenylenebis(methylene) diisonicotinate, L1 and 4,4'-bipyridine, L2 in one-pot at room temperature is reported here. The planar polycyclic complex 1 with outer diameters of ~3 nm is termed as a "molecular star" owing to its resemblance with "star pentagon" shape...
June 22, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28640801/hollywood-raising-awareness-of-smoking-related-diseases-can-it-proactively-counteract-the-impact-of-smoking-in-movies-the-final-mission-of-star-trek-s-mr-spock
#11
Job Fm van Boven, Alan G Kaplan
This corrects the article DOI: 10.1038/npjpcrm.2016.52.
June 22, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28640593/dna-condensation-induced-by-a-star-shaped-hexameric-cationic-surfactant
#12
Yaxun Fan, Hua Wang, Chengqian He, Fulin Qiao, Shu Wang, Yilin Wang
The interactions between a star-shaped hexameric cationic quaternary ammonium surfactant PAHB and calf thymus DNA and induced DNA condensation were investigated by ζ-potential, dynamic light scattering, atomic force microscopy, isothermal titration calorimetry, ethidium bromide exclusion assay, circular dichroism and cytotoxicity assay. With the addition of PAHB, long extended DNA molecules exhibit successive conformational transitions from elongated coil to partially condensed cluster-like aggregate, globules-on-a-string structure, and then to fully condensed globule until the saturation point of interaction between PAHB and DNA, which is slightly above their charge neutralization point...
June 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28640271/a-massive-dead-disk-galaxy-in-the-early-universe
#13
Sune Toft, Johannes Zabl, Johan Richard, Anna Gallazzi, Stefano Zibetti, Moire Prescott, Claudio Grillo, Allison W S Man, Nicholas Y Lee, Carlos Gómez-Guijarro, Mikkel Stockmann, Georgios Magdis, Charles L Steinhardt
At redshift z = 2, when the Universe was just three billion years old, half of the most massive galaxies were extremely compact and had already exhausted their fuel for star formation. It is believed that they were formed in intense nuclear starbursts and that they ultimately grew into the most massive local elliptical galaxies seen today, through mergers with minor companions, but validating this picture requires higher-resolution observations of their centres than is currently possible. Magnification from gravitational lensing offers an opportunity to resolve the inner regions of galaxies...
June 21, 2017: Nature
https://www.readbyqxmd.com/read/28640183/bluetooth-low-energy-mesh-networks-a-survey
#14
REVIEW
Seyed Mahdi Darroudi, Carles Gomez
Bluetooth Low Energy (BLE) has gained significant momentum. However, the original design of BLE focused on star topology networking, which limits network coverage range and precludes end-to-end path diversity. In contrast, other competing technologies overcome such constraints by supporting the mesh network topology. For these reasons, academia, industry, and standards development organizations have been designing solutions to enable BLE mesh networks. Nevertheless, the literature lacks a consolidated view on this emerging area...
June 22, 2017: Sensors
https://www.readbyqxmd.com/read/28637490/lipoid-congenital-adrenal-hyperplasia-by-steroidogenic-acute-regulatory-protein-star-gene-mutation-in-an-italian-infant-an-uncommon-cause-of-adrenal-insufficiency
#15
Carla Bizzarri, Elisa Pisaneschi, Mafalda Mucciolo, Stefania Pedicelli, Daniela Galeazzi, Antonio Novelli, Marco Cappa
BACKGROUND: Lipoid congenital adrenal hyperplasia (CAH) (OMIM n. 201710) is the most severe form of congenital adrenal hyperplasia. It is characterized by severe adrenal and gonadal steroidogenesis impairment due to a defect in the conversion of cholesterol to pregnenolone. Affected infants experience salt loss, but glucocorticoid and mineralocorticoid replacement therapy enables long-term survival. Classic lipoid congenital adrenal hyperplasia is relatively common in Japan and Korea but extremely rare in Caucasian populations...
June 20, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28636792/mtf-and-dqe-enhancement-using-an-apodized-aperture-x-ray-detector-design
#16
Tomi F Nano, Terenz Escartin, Elina Ismailova, Karim S Karim, Jan Lindstrȍm, Ho Kyung Kim, Ian A Cunningham
PURPOSE: Acquisition of high-quality x-ray images using low patient exposures requires detectors with high detective quantum efficiency (DQE). We describe a novel apodized-aperture pixel (AAP) design that increases high-frequency modulation transfer function (MTF) and DQE values. The AAP design makes a separation of physical sensor elements from image pixels by using very small sensor elements (e.g. 0.010-0.025 mm) to synthesize desired larger image pixels (e.g. 0.1-0.2 mm). METHODS: A cascaded systems model of signal and noise propagation is developed to describe the benefits of the AAP approach in terms of the MTF, Wiener noise power spectrum (NPS) and DQE...
June 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28636755/technical-note-combination-of-multiple-epid-imager-layers-improves-image-quality-and-tracking-performance-of-low-contrast-to-noise-objects
#17
Stephen Sf Yip, Joerg Rottmann, Haijian Chen, Daniel Morf, Rony Füglistaller, Josh Star-Lack, George Zentai, Ross Berbeco
PURPOSE: We hypothesized that combining multiple amorphous silicon flat panel layers increases photon detection efficiency in an electronic portal imaging device (EPID), improving image quality and tracking accuracy of low contrast targets during radiotherapy METHODS: The prototype imager evaluated in this study contained 4 individually programmable layers each with a copper converter layer, Gd2 O2 S scintillator and active-matrix flat panel imager (AMFPI). The imager was placed on a Varian TrueBeam linac and a Las Vegas phantom programmed with sinusoidal motion (peak-to-peak amplitude=20mm, Period=3...
June 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28634424/overexpression-and-knockdown-of-hypoxia-inducible-factor-1-disrupt-the-expression-of-steroidogenic-enzyme-genes-and-early-embryonic-development-in-zebrafish
#18
Tianfeng Tan, Richard Man Kit Yu, Rudolf Shiu Sun Wu, Richard Yuen Chong Kong
Hypoxia is an important environmental stressor leading to endocrine disruption and reproductive impairment in fish. Although the hypoxia-inducible factor 1 (HIF-1) is known to regulate the transcription of various genes mediating oxygen homeostasis, its role in modulating steroidogenesis-related gene expression remains poorly understood. In this study, the regulatory effect of HIF-1 on the expression of 9 steroidogenic enzyme genes was investigated in zebrafish embryos using a "gain-of-function and loss-of-function" approach...
2017: Gene Regulation and Systems Biology
https://www.readbyqxmd.com/read/28633919/guiding-stars-influences-perception-of-healthy-food-choices-at-a-4-year-university
#19
Gale B Carey, Rochelle L'Italien, Jesse Stabile Morrell
No abstract text is available yet for this article.
June 17, 2017: Journal of Nutrition Education and Behavior
https://www.readbyqxmd.com/read/28633642/prediction-and-analysis-of-three-gene-families-related-to-leaf-rust-puccinia-triticina-resistance-in-wheat-triticum-aestivum-l
#20
Fred Y Peng, Rong-Cai Yang
BACKGROUND: The resistance to leaf rust (Lr) caused by Puccinia triticina in wheat (Triticum aestivum L.) has been well studied over the past decades with over 70 Lr genes being mapped on different chromosomes and numerous QTLs (quantitative trait loci) being detected or mapped using DNA markers. Such resistance is often divided into race-specific and race-nonspecific resistance. The race-nonspecific resistance can be further divided into resistance to most or all races of the same pathogen and resistance to multiple pathogens...
June 20, 2017: BMC Plant Biology
keyword
keyword
113756
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"