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https://www.readbyqxmd.com/read/28730758/platinum-derivatives-a-multidisciplinary-approach
#1
Sinziana Gheorghe-Cetean, Calin Cainap, Luminita Oprean, Adriana Hangan, Piroska Virag, Eva Fischer-Fodor, Alexandra Gherman, Simona Cainap, Anne-Marie Constantin, Istvan Laszlo, Catalin Vlad, Radu Oprean
Cancer is one of the most difficult diseases to be treated. The particularities regarding the tumors' occurrence mechanism, their evolution under chemotherapy, disease-free interval, but also the increasing number of patients make cancer an intensively studied health domain. Although introduced in therapy since the early 80s, platinum derivatives play an essential role in anticancer therapy. Their use in therapy resulted in improving the patient quality of life and prolonging disease-free interval, which makes them still a benchmark for other anticancer compounds...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730527/characterization-of-the-complete-mitochondrial-genome-of-acanthoscelides-obtectus-coleoptera-chrysomelidae-bruchinae-with-phylogenetic-analysis
#2
Jie Yao, Hong Yang, Renhuai Dai
Acanthoscelides obtectus is a common species of the subfamily Bruchinae and a worldwide-distributed seed-feeding beetle. The complete mitochondrial genome of A. obtectus is 16,130 bp in length with an A + T content of 76.4%. It contains a positive AT skew and a negative GC skew. The mitogenome of A. obtectus contains 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes and a non-coding region (D-loop). All PCGs start with an ATN codon, and seven (ND3, ATP6, COIII, ND3, ND4L, ND6, and Cytb) of them terminate with TAA, while the remaining five (COI, COII, ND1, ND4, and ND5) terminate with a single T, ATP8 terminates with TGA...
July 20, 2017: Genetica
https://www.readbyqxmd.com/read/28729345/recent-advances-in-understanding-and-managing-body-dysmorphic-disorder
#3
REVIEW
Georgina Krebs, Lorena Fernández de la Cruz, David Mataix-Cols
Body dysmorphic disorder (BDD) is a relatively common and disabling psychiatric disorder characterised by excessive and persistent preoccupation with perceived defects or flaws in one's appearance, which are unnoticeable to others, and associated repetitive behaviours (eg, mirror checking). The disorder generally starts in adolescence, but often goes unnoticed and is severely underdiagnosed. Left untreated, BDD typically persists and causes marked functional impairment in multiple domains. This clinical review considers recent advances in the epidemiology and classification of BDD, including its reclassification in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders under the new 'Obsessive-Compulsive and Related Disorders' chapter...
July 20, 2017: Evidence-based Mental Health
https://www.readbyqxmd.com/read/28727444/fosfomycin-biosynthesis-via-transient-cytidylylation-of-2-hydroxyethylphosphonate-by-the-bifunctional-fom1-enzyme
#4
Su-Hee Cho, Seung-Young Kim, Takeo Tomita, Taro Shiraishi, Jin-Soo Park, Shusuke Sato, Fumitaka Kudo, Tadashi Eguchi, Nobutaka Funa, Makoto Nishiyama, Tomohisa Kuzuyama
Fosfomycin is a wide-spectrum phosphonate antibiotic that is used clinically to treat cystitis, tympanitis, etc. Its biosynthesis starts with the formation of a carbon-phosphorus bond catalyzed by the phosphoenolpyruvate phosphomutase Fom1. We identified an additional cytidylyltransferase (CyTase) domain at the Fom1 N-terminus in addition to the phosphoenolpyruvate phosphomutase domain at the Fom1 C-terminus. Here, we demonstrate that Fom1 is bifunctional and that the Fom1 CyTase domain catalyzes the cytidylylation of the 2-hydroxyethylphosphonate (HEP) intermediate to produce cytidylyl-HEP...
July 20, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28724829/case-report-of-a-secondary-macular-hole-closure-after-intravitreal-bevacizumab-therapy-in-a-patient-with-retinal-pigment-epithelial-detachment
#5
Marcus Werner Storch, Hans Hoerauf
We describe a case of macular hole (MH) closure after intravitreal bevacizumab therapy for an underlying pigment epithelial detachment (PED) due to exudative age-related macular degeneration (AMD). The 73-year-old Caucasian female presented with reduced visual acuity (20/80) of the left eye and metamorphopsia for approximately 6 months. Spectral domain optical coherence tomography revealed a subfoveal PED due to AMD with an associated MH. To treat the exudative component of the pathology, we started intravitreal bevacizumab therapy, consecutively leading to reduction of the height of PED and allowing closure of the MH...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28723499/prospective-evaluation-of-the-impact-of-antiangiogenic-treatment-on-cognitive-functions-in-metastatic-renal-cancer
#6
Florence Joly, Natacha Heutte, Brigitte Duclos, Sabine Noal, Isabelle Léger-Hardy, Sarah Dauchy, Nadine Longato, Laurence Desrues, Nadine Houede, Marie Lange, Emmanuel Sevin, Chantal Rieux, Bénédicte Clarisse, Hélène Castel, Bernard Escudier
BACKGROUND: Little is known about the cognitive effects of antiangiogenic therapies (AATs) in metastatic renal cell carcinoma (mRCC) and their relation with fatigue. OBJECTIVE: To evaluate the impact of AATs on cognition and its connection with fatigue and quality of life (QoL) in patients with mRCC. DESIGN, SETTING, AND PARTICIPANTS: This prospective study enrolled 75 patients starting AAT as first or second line for mRCC and assessed them at 3 mo (n=58) and 6 mo (n=50)...
December 15, 2016: European Urology Focus
https://www.readbyqxmd.com/read/28720785/evidence-of-multi-domain-morphological-structures-in-living-escherichia-coli
#7
Sharareh Tavaddod, Hossein Naderi-Manesh
A combination of light-microscopy and image processing was used to elaborate on the fluctuation in the width of the cylindrical part of Escherichia coli at sub-pixel-resolution, and under in vivo conditions. The mean-squared-width-difference along the axial direction of the cylindrical part of a number of bacteria was measured. The results reveal that the cylindrical part of Escherichia coli is composed of multi-domain morphological structures. The length of the domains starts at 150 nm in newborn cells, and linearly increases in length up to 300 nm in aged cells...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28711012/osteopontin-in-hepatocellular-carcinoma-a-possible-biomarker-for-diagnosis-and-follow-up
#8
Manuela Cabiati, Melania Gaggini, Maria Michela Cesare, Chiara Caselli, Paolo De Simone, Franco Filipponi, Giuseppina Basta, Amalia Gastaldelli, Silvia Del Ry
Recently osteopontin (OPN), a protein of the extracellular matrix, has generated in hepatocellular carcinoma (HCC) a significant interest as a prognostic factor. Aim of this study was to confirm, in liver tissues of subjects with HCV-positive HCC undergoing liver transplantation (RL, n=10) and of donors (DL, n=14), the increase of OPN plasma and tissue concentration, the OPN splicing isoforms expression profiling together with those of thrombin, and to evaluate a possible association between OPN measurements...
July 12, 2017: Cytokine
https://www.readbyqxmd.com/read/28708831/biochem4j-integrated-and-extensible-biochemical-knowledge-through-graph-databases
#9
Neil Swainston, Riza Batista-Navarro, Pablo Carbonell, Paul D Dobson, Mark Dunstan, Adrian J Jervis, Maria Vinaixa, Alan R Williams, Sophia Ananiadou, Jean-Loup Faulon, Pedro Mendes, Douglas B Kell, Nigel S Scrutton, Rainer Breitling
Biologists and biochemists have at their disposal a number of excellent, publicly available data resources such as UniProt, KEGG, and NCBI Taxonomy, which catalogue biological entities. Despite the usefulness of these resources, they remain fundamentally unconnected. While links may appear between entries across these databases, users are typically only able to follow such links by manual browsing or through specialised workflows. Although many of the resources provide web-service interfaces for computational access, performing federated queries across databases remains a non-trivial but essential activity in interdisciplinary systems and synthetic biology programmes...
2017: PloS One
https://www.readbyqxmd.com/read/28708375/enzyme-that-makes-you-cry-crystal-structure-of-lachrymatory-factor-synthase-from-allium-cepa
#10
Josie A Silvaroli, Matthew J Pleshinger, Surajit Banerjee, Philip D Kiser, Marcin Golczak
The biochemical pathway that gives onions their savor is part of the chemical warfare against microbes and animals. This defense mechanism involves formation of a volatile lachrymatory factor (LF) ((Z)-propanethial S-oxide) that causes familiar eye irritation associated with onion chopping. LF is produced in a reaction catalyzed by lachrymatory factor synthase (LFS). The principles by which LFS facilitates conversion of a sulfenic acid substrate into LF have been difficult to experimentally examine owing to the inherent substrate reactivity and lability of LF...
July 14, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28700239/suppressing-nucleation-in-metalorganic-chemical-vapor-deposition-of-mos2-monolayers-by-alkali-metal-halides
#11
HoKwon Kim, Dmitry Ovchinnikov, Davide Deiana, Dmitrii Unuchek, Andras Kis
Towards large-area deposition of MoS2 layers, we employ metal-organic precursors of Mo and S for a facile and reproducible van der Waals epitaxy on c-plane sapphire. Exposing c-sapphire substrates to alkali metal halide salts such as KI or NaCl together with the Mo precursor prior to the start of the growth process, results in increasing the lateral dimensions of single crystalline domains by more than two orders of magnitude. The MoS2 grown this way exhibits high crystallinity and optoelectronic quality comparable to single-crystal MoS2 produced by conventional chemical vapor deposition methods...
July 12, 2017: Nano Letters
https://www.readbyqxmd.com/read/28697577/priority-based-mojette-reconstruction-from-sparse-noisy-projections
#12
Min Jiang, Yi Sun, Zhiping Qu, Mengjie Li
Sparse-view Computed Tomography (CT) plays an important role in industrial inspection and medical diagnosis. However, the established reconstruction equations based on traditional Radon transform are ill-posed and obtain an approximate solution in the case of finite sampling angles. By contrast, Mojette transform is considered as the discrete geometry of the projection and reconstruction lattice. It determines the geometrical conditions for ensuring a unique solution instead of solving an ill-posed problem from the start...
July 7, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28696118/fusion-of-ultraviolet-visible-and-infrared-transient-absorption-spectroscopy-data-to-model-ultrafast-photo-isomerization
#13
Bruno Debus, Maylis Orio, Julien Réhault, Gotard Burdzinski, Cyril Ruckebusch, Michel Sliwa
Ultrafast photo-isomerization reactions generally start at higher excited state with excess of internal vibrational energy and occur via conical intersections. This leads to ultrafast dynamics which are difficult to investigate with a single transient absorption spectroscopy technique, be it in the UV-vis or IR domain. On one hand, the information available in the UV-vis is limited as only slight spectral changes are observed for different isomers. On the other hand, the interpretation of vibrational spectra is strongly hindered by intramolecular relaxation and vibrational cooling...
July 11, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28695931/methods-of-protein-corona-isolation-for-magnetic-nanoparticles
#14
Debora Bonvin, Diego Chiappe, Marc Moniatte, Heinrich Hofmann, Marijana Mionić Ebersold
Nanoparticles (NPs) in contact with a biological environment get covered by proteins and some are loosely bound and some are tightly bound. The latter form a hard protein corona (HPC) which is known to determine their biological behavior. Therefore, in order to study the biological behaviour of NPs one needs to start from the HPC. However, established methods and standards of HPC isolation are still not known. This is especially a challenge in the case of magnetic NPs which form a major branch of nanomedicine...
July 11, 2017: Analyst
https://www.readbyqxmd.com/read/28693485/three-members-of-medicago-truncatula-st-family-are-ubiquitous-during-development-and-modulated-by-nutritional-status-mtst1-and-dehydration-mtst2-and-mtst3
#15
Lucía Albornos, Ignacio Martín, Emilia Labrador, Berta Dopico
BACKGROUND: ShooT specific/Specific Tissue (ST) belong to a protein family of unknown function characterized by the DUF2775 domain and produced in specific taxonomic plant families, mainly Fabaceae and Asteraceae, with the Medicago truncatula ST family being the largest. The putative roles proposed for this family are cell elongation, biotic interactions, abiotic stress and N reserve. The aim of this work was to go deeper into the role of three M. truncatula ST proteins, namely ST1, ST2 and ST3...
July 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28690643/mechanism-of-resistance-acquisition-and-treatment-of-macrolide-resistant-mycoplasma-pneumoniae-pneumonia-in-children
#16
REVIEW
Hyeon-Jong Yang, Dae Jin Song, Jung Yeon Shim
Mycoplasma pneumoniae pneumonia (MPP) is one of the most common forms of community-acquired pneumonia in children and adolescents. Outbreaks of MPP occur in 3- to 7-year cycles worldwide; recent epidemics in Korea occurred in 2006-2007, 2011, and 2015-2016. Although MPP is known to be a mild, self-limiting disease with a good response to macrolides, it can also progress into a severe and fulminant disease. Notably, since 2000, the prevalence of macrolide-resistant MPP has rapidly increased, especially in Asian countries, recently reaching up to 80%-90%...
June 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28687930/spatiotemporal-expression-patterns-of-clusterin-in-the-mouse-inner-ear
#17
Seokwon Lee, Jeong-Oh Shin, Borum Sagong, Un-Kyung Kim, Jinwoong Bok
Clusterin (CLU) is an extracellular chaperone protein that is implicated in diverse physiological and pathophysiological cellular processes. CLU expression is upregulated in response to cellular stress and under certain conditions, such as neurodegenerative disease and cancer. CLU primarily functions as a chaperone that exerts cytoprotective effects by removing cellular debris and misfolded proteins and also acts as a signaling molecule that regulates pro-survival pathways. Deafness is caused by genetic factors and various extrinsic insults, including ototoxic drugs, exposure to loud sounds and aging...
July 8, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28682247/line-detection-as-an-inverse-problem-application-to-lung-ultrasound-imaging
#18
N Anantrasirichai, Wesley Hayes, Marco Allinovi, David Bull, Alin Achim
This paper presents a novel method for line restoration in speckle images. We address this as a sparse estimation problem using both convex and non-convex optimisation techniques based on the Radon transform and sparsity regularisation. This breaks into subproblems which are solved using the alternating direction method of multipliers (ADMM), thereby achieving line detection and deconvolution simultaneously. We include an additional deblurring step in the Radon domain via a total variation blind deconvolution to enhance line visualisation and to improve line recognition...
June 29, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28681711/development-of-responder-criteria-for-multicomponent-non-pharmacological-treatment-in-fibromyalgia
#19
Vera M Vervoort, Johanna E Vriezekolk, Cornelia H van den Ende
OBJECTIVES: There is a need to identify individual treatment success in patients with fibromyalgia (FM) who received non-pharmacological treatment. The present study described responder criteria for multicomponent non-pharmacological treatment in FM, and estimated and compared their sensitivity and specificity. METHODS: Candidate responder sets were 1) identified in literature; and 2) formulated by expert group consensus. All candidate responder sets were tested in a cohort of 129 patients with FM receiving multicomponent non-pharmacological treatment...
May 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28679445/coculture-of-bovine-cartilage-with-synovium-and-fibrous-joint-capsule-increases-aggrecanase-and-matrix-metalloproteinase-activity
#20
Per Swärd, Yang Wang, Maria Hansson, L Stefan Lohmander, Alan J Grodzinsky, André Struglics
BACKGROUND: A hallmark of osteoarthritis is increased proteolytic cleavage of aggrecan. Cross talk between cartilage and the synovium + joint capsule (SJC) can drive cartilage degradation by activating proteases in both tissues. We investigated aggrecan proteolysis patterns in cartilage explants using a physiologically relevant explant model of joint injury combining cartilage mechanical compression and coincubation with SJC. METHODS: Bovine cartilage explants were untreated; coincubated with SJC; or subjected to mechanical injury and coincubated with SJC, mechanical injury alone, or mechanical injury and incubated with tumor necrosis factor-α (TNF-α)...
July 5, 2017: Arthritis Research & Therapy
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