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https://www.readbyqxmd.com/read/28535123/topical-otic-drugs-in-a-multi-purpose-manufacturing-facility-a-guide-on-determination-and-application-of-permitted-daily-exposure-pde
#1
Lisa Wiesner, Maarten Prause, Ester Lovsin Barle
Due to newly introduced EU GMP guideline for Medicinal Products for Human and Veterinary use (PIC/S, 2015), product specific PDE for toxicological evaluation in multi-purpose facilities are required within a documented process for risk assessment. EMA (2014) guidance on setting PDE limits so far focused on systemic administration routes such as IV, oral or inhalation. This manuscript wants to give guidance on setting PDE values for risk management purposes in multi-purpose facilities for Active Pharmaceutical Ingredients (APIs) applied as topical otic drugs to the outer ear canal...
May 23, 2017: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/28533916/pediatric-intensive-care-stress-ulcer-prevention-pic-up-a-protocol-for-a-pilot-randomized-trial
#2
Mark Duffett, Karen Choong, Jennifer Foster, Elaine Gilfoyle, Jacques Lacroix, Nikhil Pai, Lehana Thabane, Deborah J Cook
BACKGROUND: Despite sparse pediatric data on effectiveness, the majority of critically ill children receive medications to prevent gastrointestinal (GI) bleeding. Stress ulcer prophylaxis may have unintended consequences-increasing the risk of nosocomial infections-which may be more serious and common than the bleeding which these drugs are prescribed to prevent. Randomized controlled trials (RCTs) in pediatric critical care are exceptionally challenging to complete, thus a rigorous pilot RCT is crucial...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28532216/structural-insights-into-the-eukaryotic-transcription-initiation-machinery
#3
Eva Nogales, Robert K Louder, Yuan He
Eukaryotic gene transcription requires the assembly at the promoter of a large preinitiation complex (PIC) that includes RNA polymerase II (Pol II) and the general transcription factors TFIID, TFIIA, TFIIB, TFIIF, TFIIE, and TFIIH. The size and complexity of Pol II, TFIID, and TFIIH have precluded their reconstitution from heterologous systems, and purification relies on scarce endogenous sources. Together with their conformational flexibility and the transient nature of their interactions, these limitations had precluded structural characterization of the PIC...
May 22, 2017: Annual Review of Biophysics
https://www.readbyqxmd.com/read/28531233/in-silico-development-and-characterization-of-tri-nucleotide-simple-sequence-repeat-markers-in-hazelnut-corylus-avellana-l
#4
Gehendra Bhattarai, Shawn A Mehlenbacher
Plant genomes are now sequenced rapidly and inexpensively. In silico approaches allow efficient development of simple sequence repeat markers, also known as microsatellite markers, from these sequences. A search of the genome sequence of 'Jefferson' hazelnut (Corylus avellana L.) identified 8,708 tri-nucleotide simple sequence repeats with at least five repeat units, and stepwise removal of the less promising sequences led to the development of 150 polymorphic markers. Fragments in the 'Jefferson' sequence containing tri-nucleotide repeats were used as references and aligned with genomic sequences from seven other cultivars...
2017: PloS One
https://www.readbyqxmd.com/read/28529914/characteristics-of-postintensive-care-syndrome-in-survivors-of-pediatric-critical-illness-a-systematic-review
#5
Elizabeth A Herrup, Beth Wieczorek, Sapna R Kudchadkar
AIM: To synthesize the available evidence focusing on morbidities in pediatric survivors of critical illness that fall within the defined construct of postintensive care syndrome (PICS) in adults, including physical, neurocognitive and psychological morbidities. METHODS: A comprehensive search was conducted in MEDLINE, EMBASE, the Cochrane Library, PsycINFO, and CINAHL using controlled vocabulary and key word terms to identify studies reporting characteristics of PICS in pediatric intensive care unit (PICU) patients...
May 4, 2017: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28525975/venous-thromboembolism-in-hospitalized-patients-receiving-chemotherapy-for-malignancies-at-japanese-community-hospital-prospective-observational-study
#6
Hiromitsu Kitayama, Tomohiro Kondo, Junko Sugiyama, Kazutomo Kurimoto, Yasuhiro Nishino, Michiaki Hirayama, Yasushi Tsuji
BACKGROUND: Although Asian population was recognized to have a lower risk of venous thromboembolism (VTE), its increasing prevalence and incidence remain unclear in patients with malignancies. We attempted to predict VTE development using activation markers of coagulation and fibrinolysis. METHODS: We enrolled patients with malignancy admitted to Tonan Hospital between April and December 2014 to receive a new-for-them chemotherapy regimen. All patients were examined for VTE by computed tomography and whole-leg compression ultrasonography before chemotherapy and three months later...
May 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28523567/peripheral-viral-challenge-triggers-hippocampal-production-of-inflammatory-proteins
#7
Tiffany Petrisko, Gregory Konat
Peripheral viral infections increase seizure propensity and intensity in susceptible individuals. We have modeled this comorbidity by demonstrating that intraperitoneal (ip) injection of the conventional viral mimetic, polyinosinic-polycytidylic acid (PIC), renders the brain hypersusceptible to seizures induced by kainic acid (KA). At the molecular level, the hippocampus, which is the ictal site of KA-induced seizures, exhibits upregulated expression of messages encoding several inflammatory genes. Here, we profiled temporal expression of these genes at the protein level...
May 18, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28520978/ldb1-mediated-enhancer-looping-can-be-established-independent-of-mediator-and-cohesin
#8
Ivan Krivega, Ann Dean
Mechanistic studies in erythroid cells indicate that LDB1, as part of a GATA1/TAL1/LMO2 complex, brings erythroid-expressed genes into proximity with enhancers for transcription activation. The role of co-activators in establishing this long-range interaction is poorly understood. Here we tested the contributions of the RNA Pol II pre-initiation complex (PIC), mediator and cohesin to establishment of locus control region (LCR)/β-globin proximity. CRISPR/Cas9 editing of the β-globin promoter to eliminate the RNA Pol II PIC by deleting the TATA-box resulted in loss of transcription, but enhancer-promoter interaction was unaffected...
May 18, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28516375/effects-of-bothrops-alternatus-venom-in-zebrafish-a-histopathological-study
#9
José Carlos Tavares Carvalho, Hady Keita, Giovanna Rocha Santana, Gisele Custódio de Souza, Igor Victor Ferreira Dos Santos, Jesus Rafael Rodriguez Amado, Ansoumane Kourouma, Ariadna Lafourcade Prada, Helison de Oliveira Carvalho, Maria Lúcia Silva
Zebrafish is an excellent model organism for studying tissue alterations caused by Bothrops alternatus venom (BAV) and for screening new anti-venom drugs. To study tissue alterations following exposure to BAV and the roles that glucocorticoids play in these tissue reactions, zebrafish were randomly divided into five groups: the free injection control group (FIC), the phosphate-buffered saline injection control group (PIC), the venom injected group (VI), the group treated with dexamethasone 1 h before venom injection (D1hBVI) and the group treated with dexamethasone 1 h after venom injection (D1hAVI)...
May 17, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28514893/cytocompatible-polyion-complex-gel-of-poly-pro-hyp-gly-for-simultaneous-rat-bone-marrow-stromal-cell-encapsulation
#10
Farah Nurlidar, Mime Kobayashi, Kayo Terada, Tsuyoshi Ando, Masao Tanihara
Polyion complex (PIC) gel of poly(Pro-Hyp-Gly) was successfully fabricated by simply mixing polyanion and polycation derivatives of poly(Pro-Hyp-Gly), a collagen-like polypeptide. The polyanion, succinylated poly(Pro-Hyp-Gly), and the polycation, arginylated poly(Pro-Hyp-Gly), contain carboxy (pKa = 5.2) and guanidinium (pKa = 12.4) groups, respectively. Mixing the polyanion and the polycation at physiological pH (pH = 7.4) resulted in PIC gel. The hydrogel formation was optimum at an equimolar ratio of carboxy to guanidinium groups, suggesting that ionic interaction is the main determinant for the hydrogel formation...
May 18, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28513741/magneto-structural-correlations-in-a-family-of-di-alkoxo-bridged-chromium-dimers
#11
Hector W L Fraser, Gary S Nichol, Gunasekaran Velmurugan, Gopalan Rajaraman, Euan K Brechin
A series of di-alkoxo bridged Cr(iii) dimers have been synthesised using pyridine alcohol ligands. The structures fall into four general categories and are of formula: [Cr2(OMe)2(pic)4]·½MeOH·½Et2O (1), [Cr2(hmp)2(pic)2X2] (where X = Cl (2), Br (3)), [Cr2(L)2Cl4(A)2]·2S (where L = hmp, A = H2O and S = Et2O (4); L = hmp, A = pyridine and S = pyridine (5); L = hmp, A = 4-picoline and no S (6); L = hep, A = H2O and S = MeCN (7)), and [Cr(hmp)(hmpH)Cl2]·MeCN (8). Direct current (DC) magnetic susceptibility measurements show relatively weak antiferromagnetic exchange interactions between the Cr(iii) centres with J values <|15| cm(-1) in all of the complexes measured...
May 17, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28510247/characterization-and-development-of-56-est-ssr-markers-derived-from-the-transcriptome-of-odontobutis-potamophila
#12
P P Wang, M Ren, S Q Chen, S W Yin, C Zhao, H Y Zhang, X R Li, Q Q Cao, G Q Zhou
Expressed sequence tags (ETSs) are the sources of microsatellite development. In this study, we isolated and characterized microsatellite markers for Odontobutis potamophila by using Illumina RNA-sequencing. We sequenced a large number of ESTs and screened 200 potential microsatellites. Consequently, a total of 56 novel polymorphic microsatellite repeat markers were identified in thirty-two individuals from a wild population area (Jiande, Zhejiang Province, China). The number of alleles per locus varied from two to eight, the observed heterozygosity (HO) ranged from 0...
May 10, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28507702/plasmon-induced-charge-separation-chemistry-and-wide-applications
#13
Tetsu Tatsuma, Hiroyasu Nishi, Takuya Ishida
Recent development of nanoplasmonics has stimulated chemists to utilize plasmonic nanomaterials for efficient and distinctive photochemical applications, and physicists to boldly go inside the "wet" chemistry world. The discovery of plasmon-induced charge separation (PICS) has even accelerated these trends. On the other hand, some confusion is found in discussions about PICS. In this perspective, we focus on differences between PICS and some other phenomena such as co-catalysis effect and plasmonic nanoantenna effect...
May 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28505790/multiparticle-collision-simulations-of-two-dimensional-one-component-plasmas-anomalous-transport-and-dimensional-crossovers
#14
Pierfrancesco Di Cintio, Roberto Livi, Stefano Lepri, Guido Ciraolo
By means of hybrid multiparticle collsion-particle-in-cell (MPC-PIC) simulations we study the dynamical scaling of energy and density correlations at equilibrium in moderately coupled two-dimensional (2D) and quasi-one-dimensional (1D) plasmas. We find that the predictions of nonlinear fluctuating hydrodynamics for the structure factors of density and energy fluctuations in 1D systems with three global conservation laws hold true also for 2D systems that are more extended along one of the two spatial dimensions...
April 2017: Physical Review. E
https://www.readbyqxmd.com/read/28505707/numerical-heating-of-electrons-in-particle-in-cell-simulations-of-fully-magnetized-plasmas
#15
M Horký, W J Miloch, V A Delong
The role of spatial resolution of the electron gyroradius in electrostatic particle-in-cell (PIC) simulations is studied. It is demonstrated that resolving the gyroradius is crucial for simulations of strongly magnetized plasmas and that nonresolving it results in substantial anisotropic heating of electrons. The numerical heating can, in some cases, be suppressed by the higher-order weighting to the grid, but it cannot be avoided. Possible mechanisms behind this numerical heating are discussed. The study is carried out with a fully three dimensional electrostatic PIC code with an external magnetic and electric fields...
April 2017: Physical Review. E
https://www.readbyqxmd.com/read/28501713/an-in-situ-photocrosslinkable-platelet-rich-plasma-complexed-hydrogel-glue-with-growth-factor-controlled-release-ability-to-promote-cartilage-defect-repair
#16
Xiaolin Liu, Yunlong Yang, Xin Niu, Qiuning Lin, Bizeng Zhao, Yang Wang, Linyong Zhu
The repair of articular cartilage injury is a great clinical challenge. Platelet-rich plasma (PRP) has attracted much attention for the repair of articular cartilage injury, because it contains various growth factors that are beneficial for wound repair. However, current administration methods of PRP face many shortcomings, such as unstable biological fixation and burst release of growth factors, all of which will bring troubles to its application in the repair of articular cartilage and compromise its therapeutic efficacy...
May 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28500406/assessment-of-genetic-diversity-of-sesame-accessions-collected-from-different-ecological-regions-using-sequence-related-amplified-polymorphism-markers
#17
Bazel H Ali Al-Somain, Hussein M Migdadi, Sulieman A Al-Faifi, Salem S Alghamdi, Abdulmalek A Muharram, Nabil A Mohammed, Yahya A Refay
Sequence-related amplified polymorphism (SRAP) markers were used to assess the genetic diversity among a collection of 52 sesame accessions representing different geographical environments, including eight Saudi landraces. A combination of seventeen primers generated a high number of alleles (365) with 100% polymorphism. The polymorphic information content (PIC) and primer discrimination power (DP) recorded overall means of 0.88 and 5.88, respectively. Genetic similarity values based on Jaccard coefficients ranged from 0...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28500405/est-ssr-marker-revealed-effective-over-biochemical-and-morphological-scepticism-towards-identification-of-specific-turmeric-curcuma-longa-l-cultivars
#18
Ambika Sahoo, Sudipta Jena, Basudeba Kar, Suprava Sahoo, Asit Ray, Subhashree Singh, Raj Kumar Joshi, Laxmikanta Acharya, Sanghamitra Nayak
Turmeric (Curcuma longa L., family Zingiberaceae) is one of the most economically important plants for its use in food, medicine, and cosmetic industries. Cultivar identification is a major constraint in turmeric, owing to high degree of morphological similarity that in turn, affects its commercialization. The present study addresses this constraint, using EST-SSR marker based, molecular identification of 8 elite cultivars and 88 accessions in turmeric. Fifty EST-SSR primers were screened against eight cultivars of turmeric (Suroma, Roma, Lakadong, Megha, Alleppey Supreme, Kedaram, Pratibha, and Suvarna); out of which 11 primers showed polymorphic banding pattern...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28500404/analysis-of-genetic-structure-and-interrelationships-in-lentil-species-using-morphological-and-ssr-markers
#19
Priyanka Mohan Koul, Vikas Sharma, Maneet Rana, Rakesh K Chahota, Shiv Kumar, Tilak R Sharma
Genetic structure and relationships of 130 lentil accessions belonging to six taxa were analysed. For this purpose, seven morphological traits and 31 polymorphic simple sequence repeat (SSR) primers were used for this purpose. Morphological traits grouped lentil accessions into five main clusters. SSR primers collectively amplified 139 polymorphic alleles in a range of 2-10 with an average of 4.48 alleles. The size of amplified alleles varied from 50 to 650 bp. Polymorphism information content (PIC) ranged from 0...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28499214/speciation-of-potential-anti-diabetic-vanadium-complexes-in-real-serum-samples
#20
Daniele Sanna, Valeria Ugone, Maria Serra, Eugenio Garribba
In this work the speciation in real serum samples of five V(IV)O complexes with potential application in the therapy of diabetes was studied through EPR spectroscopy as a function of V concentration (45.4, 90.9 and 454.5μM) and time (0-180min). [VO(dhp)2], [VO(ma)2], [VO(acac)2], [VO(pic)2(H2O)], and [VO(mepic)2], where Hdhp indicates 1,2-dimethyl-3-hydroxy-4(1H)-pyridinone, Hma maltol, Hacac acetylacetone, Hpic picolinic acid, and Hmepic 6-methylpicolinic acid, were examined. The distribution of V(IV)O(2+) among the serum bioligands was calculated from the thermodynamic stability constants in the literature and compared with the experimental results...
April 25, 2017: Journal of Inorganic Biochemistry
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