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https://www.readbyqxmd.com/read/29776017/pharmacokinetics-and-c-reactive-protein-modelling-of-anti-il-6-antibody-pf-04236921-in-healthy-volunteers-and-patients-with-autoimmune-disease
#1
Cheryl Li, Satoshi Shoji, Jean Beebe
AIMS: The purpose of this study was to characterize pharmacokinetics (PK) of PF-04236921, a novel anti-IL-6 monoclonal antibody, and its pharmacokinetics/pharmacodynamics (PK/PD) relationship on serum C-Reactive Protein (CRP) in healthy volunteers and patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), and Crohn's disease (CD) METHODS: Population modelling analyses were conducted using nonlinear mixed effects modelling. Data from 2 phase 1 healthy volunteer studies, a phase 1 RA study, a Phase 2 CD study, and a Phase 2 SLE study were included...
May 18, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29776003/the-vcd-pattern-of-the-%C3%AE-c-o-bands-in-isoindolinones
#2
Joanna Ewa Rode, Krzysztof Lyczko, Magdalena Jawiczuk, Robert Kawęcki, Wojciech Stańczyk, Agnieszka Jaglińska, Jan Cz Dobrowolski
The IR and VCD spectra of both enantiomers of Me, iPr, nBu, Ph and CH2Ph substituted isoindolinones in solution and KBr pellets were measured and interpreted with DFT calculations. The spectra in solution revealed no important differences in the C=O stretching vibration region while the interpretation of very distinct spectra taken in pellets required determining the crystal structures. The studied compounds crystallized in the P212121 (Me, iPr, CH2Ph), P31 (nBu), and P21 (Ph) space groups. We found that the quality of simulated spectra strongly depends on the substituent, the structure of the molecular cluster assumed, basis set, and use of the dispersion correction...
May 18, 2018: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29775921/toxicological-investigation-in-blood-samples-from-suspected-impaired-driving-cases-in-the-milan-area-possible-loss-of-evidence-due-to-late-blood-sampling
#3
Davide Ferrari, Monica Manca, Simone Premaschi, Giuseppe Banfi, Massimo Locatelli
Driving under the influence of illicit drugs (DUID) represents a significant menace to public safety and is therefore sanctioned with severe fines and penalties such as driving disqualification or even arrest in case the accident has caused serious injury or death. In Italy, DUID is regulated by the article 187 of the National Street Code, however, the list of the substances to be searched and their threshold concentrations are left to the 20 Italian regional authorities. A further lack of legislative standardization concerns the type of detection methods and moreover the time gap between the car accident and blood sampling...
May 1, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29775912/an-accurate-sleep-stages-classification-system-using-a-new-class-of-optimally-time-frequency-localized-three-band-wavelet-filter-bank
#4
Manish Sharma, Deepanshu Goyal, P V Achuth, U Rajendra Acharya
Sleep related disorder causes diminished quality of lives in human beings. Sleep scoring or sleep staging is the process of classifying various sleep stages which helps to detect the quality of sleep. The identification of sleep-stages using electroencephalogram (EEG) signals is an arduous task. Just by looking at an EEG signal, one cannot determine the sleep stages precisely. Sleep specialists may make errors in identifying sleep stages by visual inspection. To mitigate the erroneous identification and to reduce the burden on doctors, a computer-aided EEG based system can be deployed in the hospitals, which can help identify the sleep stages, correctly...
May 10, 2018: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29775859/facilitating-complex-dna-mixture-interpretation-by-sequencing-highly-polymorphic-haplotypes
#5
Lev Voskoboinik, Uzi Motro, Ariel Darvasi
Interpretation of complex DNA mixtures is an ongoing challenge in the field of forensic genetics. Commonly used STR markers are quite polymorphic, enabling very high statistical association between a single source DNA profile from a crime scene and a matching suspect. STR typing of low order mixtures with two and three contributors also commonly produces high statistical association for a contributor, using current interpretation software. However higher order mixtures, with four contributors or more, are more challenging...
May 2, 2018: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29775771/a-detailed-analysis-of-the-arden-syntax-expression-grammar
#6
Stefan Kraus, Marc Rosenbauer, Lutz Schröder, Thomas Bürkle, Klaus-Peter Adlassnig, Dennis Toddenroth
OBJECTIVE: The Arden Syntax for Medical Logic Systems is a standard for encoding and sharing medical knowledge in the form of Medical Logic Modules. To improve accessibility for clinicians, the originators of the standard deliberately designed Arden Syntax expressions to resemble natural language, and parentheses around operands are not generally required. For certain patterns of nested expressions, however, the use of parentheses is mandatory, otherwise they are not accepted by an Arden Syntax environment...
May 15, 2018: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29775664/auto-induction-for-high-level-production-of-biologically-active-reteplase-in-escherichia-coli
#7
Mehrnoosh Fathi-Roudsari, Nader Maghsoudi, Amirhossein Maghsoudi, Sepideh Niazi, Morvarid Soleiman
Reteplase is a third generation tissue plasminogen activator (tPA) with a modified structure and prolonged half-life in comparison to native tPA. As a non-glycosylated protein, reteplase is expressed in Escherichia coli. Due to presence of several disulfide bonds, high level production of reteplase is complicated and needs extra steps for conversion to biologically active form. Auto-induction represents a method for high-yield growth of bacterial cells and higher expression of recombinant proteins. Here we have tried to optimize the auto-induction procedure for soluble and active expression of reteplase in E...
May 15, 2018: Protein Expression and Purification
https://www.readbyqxmd.com/read/29775489/relativistic-heavy-atom-effect-on-the-31-p-nmr-parameters-of-phosphine-chalcogenides-part-1-chemical-shifts
#8
Yury Yu Rusakov, Irina L Rusakova, Leonid B Krivdin
Four-component DFT calculations of 31 P NMR chemical shifts have been performed for the representative series of 56 phosphine chalcogenides in order to investigate an influence of different functional groups on the heavy atom relativistic effect on the NMR chemical shifts of light phosphorous atoms (HALA effect). The validity of the four-component DFT approach used for the wide-scale calculations of the phosphorous chemical shifts in a wide series of phosphine chalcogenides has been confirmed on a small series of 5 representative compounds with the aid of high-quality CCSD calculations taking into account solvent, vibrational and the relativistic corrections in comparison with the experiment...
May 18, 2018: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/29775409/transactivation-domain-of-p53-regulates-dna-repair-and-integrity-in-human-ips-cells
#9
Ramaswamy Kannappan, Saidulu Mattapally, Pooja A Wagle, Jianyi Zhang
The role of p53 transactivation domain (p53-TAD), a multifunctional and dynamic domain, on DNA repair and retaining DNA integrity in human iPS cells has never been studied. p53-TAD was knocked out in iPS cells using CRISPR/Cas9 and was confirmed by DNA sequencing. p53-TAD KO cells were characterized by: accelerated proliferation, decreased population doubling time, and unaltered Bcl2, BBC3, IGF1R, Bax and altered Mdm2, p21, and PIDD transcripts expression. In p53-TAD KO cells p53 regulated DNA repair proteins XPA, DNA polH and DDB2 expression were found to be reduced compared to p53-WT cells...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29775382/data-mining-cmmss-how-to-convert-data-into-knowledge
#10
Larry Fennigkoh, D Courtney Nanney
Although the healthcare technology management (HTM) community has decades of accumulated medical device-related maintenance data, little knowledge has been gleaned from these data. Finding and extracting such knowledge requires the use of the well-established, but admittedly somewhat foreign to HTM, application of inferential statistics. This article sought to provide a basic background on inferential statistics and describe a case study of their application, limitations, and proper interpretation. The research question associated with this case study involved examining the effects of ventilator preventive maintenance (PM) labor hours, age, and manufacturer on needed unscheduled corrective maintenance (CM) labor hours...
January 2018: Biomedical Instrumentation & Technology
https://www.readbyqxmd.com/read/29775360/size-dependent-grain-boundary-structure-with-improved-conductive-and-mechanical-stabilities-in-sub-10-nm-gold-crystals
#11
Chunyang Wang, Kui Du, Kepeng Song, Xinglong Ye, Lu Qi, Suyun He, Daiming Tang, Ning Lu, Haijun Jin, Feng Li, Hengqiang Ye
Low-angle grain boundaries generally exist in the form of dislocation arrays, while high-angle grain boundaries (misorientation angle >15°) exist in the form of structural units in bulk metals. Here, through in situ atomic resolution aberration corrected electron microscopy observations, we report size-dependent grain-boundary structures improving both stabilities of electrical conductivity and mechanical properties in sub-10-nm-sized gold crystals. With the diameter of a nanocrystal decreasing below 10 nm, the high-angle grain boundary in the crystal exists as an array of dislocations...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775352/three-dimensional-color-code-thresholds-via-statistical-mechanical-mapping
#12
Aleksander Kubica, Michael E Beverland, Fernando Brandão, John Preskill, Krysta M Svore
Three-dimensional (3D) color codes have advantages for fault-tolerant quantum computing, such as protected quantum gates with relatively low overhead and robustness against imperfect measurement of error syndromes. Here we investigate the storage threshold error rates for bit-flip and phase-flip noise in the 3D color code (3DCC) on the body-centered cubic lattice, assuming perfect syndrome measurements. In particular, by exploiting a connection between error correction and statistical mechanics, we estimate the threshold for 1D stringlike and 2D sheetlike logical operators to be p_{3DCC}^{(1)}≃1...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775246/tramadol-hydrochloride-at-steady-state-lacks-clinically-relevant-qtc-interval-increases-in-healthy-adults
#13
Joseph Massarella, Jay Ariyawansa, Jaya Natarajan, Stephan Francke, Thomas Murtaugh, Byron DeLemos, Subusola Vaughan, Sergio Fonseca
We evaluated the effects of therapeutic and supratherapeutic doses of tramadol hydrochloride on the corrected QT (QTc) interval in healthy adults (aged 18-55 years) in a randomized, phase I, double-blind, placebo- and positive-controlled, multiple-dose, 4-way crossover study. Participants were randomized to receive 1 of 4 treatments (A-D), 1 each in 4 treatment periods (1-4), separated by a washout period (7-15 days). Treatment A comprised tramadol 400 mg (therapeutic dose) on days 1 through 3, tramadol 100 mg and moxifloxacin-matched placebo on day 4, and placebo on all 4 days...
May 18, 2018: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/29775213/individual-specific-qt-interval-correction-for-drugs-with-substantial-heart-rate-effect-using-holter-ecgs-extracted-over-a-wide-range-of-heart-rates
#14
Gopi Krishna Panicker, Pramod Kadam, Saikat Chakraborty, Snehal Kothari, J Rick Turner, Dilip R Karnad
Although fixed QT correction methods are typically used to adjust for the effect of heart rate on the QT interval in thorough QT/QTc studies, individual-specific QT correction (QTcI = QT/RRI ) is advisable for drugs that increase the heart rate by >5 to 10 beats/minute (bpm). QTcI is traditionally derived using resting drug-free electrocardiograms (ECGs) collected at prespecified times. However, the resting heart rate range in healthy individuals is narrow, and extrapolation of inferences from these data to higher heart rates could be inappropriate...
May 18, 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29775162/validation-of-prone-intraoperative-measurements-of-global-spinal-alignment
#15
Max Vaynrub, Brandon P Hirsch, Jared Tishelman, Dennis Vasquez-Montes, Aaron J Buckland, Thomas J Errico, Themistocles S Protopsaltis
OBJECTIVE Verifying the adequacy of surgical correction of adult spinal sagittal deformity (SSD) leads to improved postoperative alignment and clinical outcomes. Traditionally, surgeons relied on intraoperative measurements of lumbar lordosis (LL) correction. However, T-1 pelvic angle (TPA) and its component angles more reliably predict postoperative alignment. While TPA is readily measured on standing radiographs, intraoperative radiographs offer poor resolution of the bicoxofemoral axis. A method to recreate this radiographic landmark by extrapolating preoperative measurements has been described...
May 18, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29775110/near-point-of-convergence-in-iranian-schoolchildren-normative-values-and-associated-factors
#16
Hassan Hashemi, Payam Nabovati, Mehdi Khabazkhoob, Abbasali Yekta, Mohammad Hassan Emamian, Akbar Fotouhi
PURPOSE: To determine the distribution of near point of convergence (NPC) and its related factors in 6 to 12-year-old children. METHODS: In a cross-sectional study in 2015, the urban and rural children of Shahroud, north of Iran, were sampled. All rural schoolchildren were invited to the study, and in the urban area, we conducted random cluster sampling. Examinations included measurement of uncorrected and corrected visual acuity, manifest, subjective, and cycloplegic refraction...
May 18, 2018: Strabismus
https://www.readbyqxmd.com/read/29775103/shoot-litter-breakdown-and-zinc-dynamics-of-an-aquatic-plant-schoenoplectus-californicus
#17
Silvana Arreghini, Laura de Cabo, Roberto José María Serafini, Alicia Fabrizio de Iorio
Decomposition of plant debris is an important process in determining the structure and function of aquatic ecosystems. The aims were to find a mathematic model fitting the decomposition process of Schoenoplectus californicus shoots containing different Zn concentrations; compare the decomposition rates; and assess metal accumulation/mobilization during decomposition. A litterbag technique was applied with shoots containing three levels of Zn: collected from an unpolluted river (RIV) and from experimental populations at low (LoZn) and high (HiZn) Zn supply...
July 3, 2018: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29775090/evaluation-of-management-and-guideline-adherence-in-children-with-mild-traumatic-brain-injury
#18
Merel C Broers, Jikke-Mien F Niermeijer, Irene A W Kotsopoulos, Hester F Lingsma, Jos F M Bruinenberg, Coriene E Catsman-Berrevoets
AIM: To evaluate the management and guideline adherence in children with mild traumatic brain injury (MTBI) in emergency departments (ED) in the Netherlands. METHODS: A multicentre cohort study was conducted, including children younger than 18 years with MTBI who presented within 24 hours after trauma in the ED of hospitals in the southwest region of the Netherlands, in 2014. Primary outcome measures for management were percentages of performed computed tomography (CT) scans and hospital admissions...
May 18, 2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29775055/correction-to-self-regeneration-of-chirality-with-l-cysteine-through-1-3-dipolar-cycloadditions-between-diazoalkanes-and-enantiomerically-pure-thiazolines-experimental-and-computational-studies
#19
J Gracia-Vitoria, I Osante, C Cativiela, P Merino, T Tejero
No abstract text is available yet for this article.
May 18, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29775037/recommendations-for-safe-vaccination-in-children-at-the-risk-of-taking-allergic-reactions-to-vaccine-components
#20
(no author information available yet)
Vaccines are one of the most important advances in medicine as a public health tool for the control of immunopreventable diseases. Occasionally, adverse reactions may occur. If a child has a reaction to a vaccine, it is likely to disrupt his immunization schedule with risks to himself and the community. This establishes the importance of correctly diagnosing a possible allergy and defining appropriate behavior. Allergic reactions to vaccines may be due to the immunogenic component, to the residual proteins in the manufacturing process and to antimicrobial agents, stabilizers, preservatives and any other element used in the manufacturing process...
April 1, 2018: Archivos Argentinos de Pediatría
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