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https://www.readbyqxmd.com/read/28741675/pharmacokinetics-of-dinalbuphine-sebacate-and-nalbuphine-in-human-after-intramuscular-injection-of-dinalbuphine-sebacate-in-an-extended-release-formulation
#1
Yu En Tien, Wen-Chuan Huang, Hui-Yuan Kuo, Lily Tai, Yow-Shieng Uang, Wendy H Chern, Jin-Ding Huang
Nalbuphine is a semi-synthetic opioid indicated for the relief of moderate to severe pain. Its short half-life requires frequent injections in clinical practices, resulting in greater incidences of adverse events. We have developed a prodrug of nalbuphine, dinalbuphine sebacate (DNS), dissolved in a simple oil-based injectable formulation, which could deliver and maintain effective blood nalbuphine level. An open-label, prospective, two-period study was performed in healthy volunteers to verify the extended blood concentration profile of nalbuphine...
July 25, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/28740381/chitosan-coated-diacerein-nanosuspensions-as-a-platform-for-enhancing-bioavailability-and-lowering-side-effects-preparation-characterization-and-ex-vivo-in-vivo-evaluation
#2
Ahmed N Allam, Sherif I Hamdallah, Ossama Y Abdallah
Nanodrug delivery systems have been widely reviewed for their use in several drug formulations to improve bioavailability, sustain effect, and decrease side effects of many candidate drugs. The objective of this study was to evaluate the potential of chitosan (CS)-coated nanosuspensions to enhance bioavailability and reduce the diarrheal side effect of diacerein (DCN) after oral administration. DCN nanosuspensions (DNS) were prepared by sonoprecipitation technique using different stabilizers at three different concentrations...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28738566/preparation-and-evaluation-of-a-novel-n-benzyl-phenethylamino-%C3%AE-cyclodextrin-bonded-chiral-stationary-phase-for-hplc
#3
Liang Li, Biaoping Cheng, Rendan Zhou, Zhigang Cao, Chun Zeng, Laisheng Li
A novel N-benzyl-phenethylamino-β-cyclodextrin-bonded ordered mesoporous SBA-15 chiral stationary phase (BZCDP) for high-performance liquid chromatography (HPLC) was prepared. The structure and morphology of the ligand and the stationary phase were characterized by mass spectrometry, elemental analysis, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and thermogravimetric analysis. The enantiomers of chiral compounds including nine common β-adrenergic blocker drugs (β-blockers), eight dansyl amino acids (DNS-AA) and six flavanones were successfully separated by polar organic solvent and reversed-phase chromatography, respectively...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28709298/direct-numerical-simulation-study-of-statistically-stationary-propagation-of-a-reaction-wave-in-homogeneous-turbulence
#4
Rixin Yu, Andrei N Lipatnikov
A three-dimensional (3D) direct numerical simulation (DNS) study of the propagation of a reaction wave in forced, constant-density, statistically stationary, homogeneous, isotropic turbulence is performed by solving Navier-Stokes and reaction-diffusion equations at various (from 0.5 to 10) ratios of the rms turbulent velocity U^{'} to the laminar wave speed, various (from 2.1 to 12.5) ratios of an integral length scale of the turbulence to the laminar wave thickness, and two Zeldovich numbers Ze=6.0 and 17...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28669058/improved-neuroimaging-atlas-of-the-dentate-nucleus
#5
Naying He, Jason Langley, Daniel E Huddleston, Huawei Ling, Hongmin Xu, Chunlei Liu, Fuhua Yan, Xiaoping P Hu
The dentate nucleus (DN) of the cerebellum is the major output nucleus of the cerebellum and is rich in iron. Quantitative susceptibility mapping (QSM) provides better iron-sensitive MRI contrast to delineate the boundary of the DN than either T2-weighted images or susceptibility-weighted images. Prior DN atlases used T2-weighted or susceptibility-weighted images to create DN atlases. Here, we employ QSM images to develop an improved dentate nucleus atlas for use in imaging studies. The DN was segmented in QSM images from 38 healthy volunteers...
July 1, 2017: Cerebellum
https://www.readbyqxmd.com/read/28609205/diagnostic-performance-of-gadoxetic-acid-enhanced-liver-mr-imaging-versus-multidetector-ct-in-the-detection-of-dysplastic-nodules-and-early-hepatocellular-carcinoma
#6
Bo Ram Kim, Jeong Min Lee, Dong Ho Lee, Jeong Hee Yoon, Bo Yun Hur, Kyung Suk Suh, Nam-Joon Yi, Kyung Boon Lee, Joon Koo Han
Purpose To compare the diagnostic performance of gadoxetic acid-enhanced liver magnetic resonance (MR) imaging with that of contrast material-enhanced multidetector computed tomography (CT) in the detection of borderline hepatocellular nodules in patients with liver cirrhosis and to determine the Liver Imaging Reporting and Data System (LI-RADS) categories of these detected nodules. Materials and Methods The institutional review board approved this retrospective study and waived the informed consent requirement...
June 13, 2017: Radiology
https://www.readbyqxmd.com/read/28606530/conversion-of-cellulose-into-reducing-sugar-by-solution-plasma-process-spp
#7
I Prasertsung, P Chutinate, A Watthanaphanit, N Saito, S Damrongsakkul
In the present study, cellulose colloids are treated with the solution plasma process in order to prepare reducing sugar. The investigated parameters are treatment time, type of electrodes, and applied pulse frequency of the bipolar supply. The reducing sugar was characterized by DNS method and the%yield of total reducing sugar (TRS) was then calculated. The crystal structure and chemical structure of plasma-treated cellulose was measured by XRD and FT-IR, respectively. The%yield of TRS was greatly enhanced by solution plasma treatment using Fe electrode...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28598374/doppler-navigation-system-with-a-non-stabilized-antenna-as-a-sea-surface-wind-sensor
#8
Alexey Nekrasov, Alena Khachaturian, Vladimir Veremyev, Mikhail Bogachev
We propose a concept of the utilization of an aircraft Doppler Navigation System (DNS) as a sea-surface wind sensor complementary to its normal functionality. The DNS with an antenna, which is non-stabilized physically to the local horizontal with x-configured beams, is considered. We consider the wind measurements by the DNS configured in the multi-beam scatterometer mode for a rectilinear flight scenario. The system feasibility and the efficiency of the proposed wind algorithm retrieval are supported by computer simulations...
June 9, 2017: Sensors
https://www.readbyqxmd.com/read/28582897/reflex-mediated-dynamic-neuromuscular-stabilization-in-stroke-patients-emg-processing-and-ultrasound-imaging
#9
Hyun S Yoon, Joshua Sung H You
BACKGROUND: Postural core instability is associated with poor dynamic balance and a high risk of serious falls. Both neurodevelopmental treatment (NDT) and dynamic neuromuscular stabilization (DNS) core stabilization exercises have been used to improve core stability, but the outcomes of these treatments remain unclear. OBJECTIVE: This study was undertaken to examine the therapeutic effects of NDT and DNS core stabilization exercises on muscular activity, core stability, and core muscle thickness...
May 19, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28577516/improvement-of-bacillus-strains-by-mutation-for-overproduction-of-exopolygalacturonases
#10
Hira Muzzamal, Zakia Latif
Pectinases, produced by microorganisms, have wide range application in food industry, textile processing, paper making, coffee and tea fermentation, etc. It accounts for 10% of the global industrial enzymes produced. The most important and widely used commercial pectinase polygalacturonase is produced by alkalophilic strains of Bacillus sp. and Streptomyces sp. Here, we explored 29 bacterial strains isolated from rotten mango samples for polygalacturonase production and selected 16 strains through preliminary screening by well-plate method for enzyme activity...
August 2016: Indian Journal of Experimental Biology
https://www.readbyqxmd.com/read/28553599/serum-vitamin-b12-levels-in-type-2-diabetes-patients-on-metformin-compared-to-those-never-on-metformin-a-cross-sectional-study
#11
Nishant Raizada, Viveka P Jyotsna, Vishnubhatla Sreenivas, Nikhil Tandon
CONTEXT: There are limited data about the effect of metformin use on serum Vitamin B12 levels in type 2 diabetes patients from India. AIMS: We studied serum Vitamin B12 levels in patients with type 2 diabetes mellitus who were receiving metformin and compared them to those never treated with metformin. SUBJECTS AND METHODS: A total of 183 patients ("metformin" group 121, "no metformin" group 63) of type 2 diabetes from the endocrinology clinic of a tertiary care center in North India were studied...
May 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28527219/tmem230-accumulation-in-granulovacuolar-degeneration-bodies-and-dystrophic-neurites-of-alzheimer-s-disease
#12
Sandra L Siedlak, Yinfei Jiang, Mikayla L Huntley, Luwen Wang, Ju Gao, Fei Xie, Jingyi Liu, Bo Su, George Perry, Xinglong Wang
Transmembrane Protein 230 (TMEM230) is a newly identified protein associated with Parkinson's disease (PD) found in Lewy bodies and Lewy neurites of patients with PD or dementia with Lewy body disease. However, TMEM230 has not yet been investigated in the most common neurodegenerative disorder, Alzheimer's disease (AD). Here, we demonstrate that the expression of TMEM230 is specifically increased in neurons in AD patients. Importantly, both granulovacuolar degeneration (GVD) and dystrophic neurites (DNs), two prominent characteristic pathological structures associated with AD, contain TMEM230 aggregates...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28506496/twins-labeling-liquid-chromatography-mass-spectrometry-based-metabolomics-for-absolute-quantification-of-tryptophan-and-its-key-metabolites
#13
Huimin Guo, Yu Jiao, Xu Wang, Tao Lu, Zunjian Zhang, Fengguo Xu
Tryptophan metabolism plays a crucial role in mediating gastrointestinal function. Here, in order to absolutely quantify tryptophan and its metabolites, a liquid chromatography-mass spectrometry (LC-MS) based targeted metabolomics approach was developed using N-dimethyl-/N-diethyl-amino naphthalene-1-sulfonyl chloride (Dns/Dens-Cl) as twins labeling (TL) reagents. Dns-Cl is famous in amine and phenol derivations, and structure is similar with Dens-Cl. The introduction of easily protonated moiety of tertiary ammonium-containing part in the derivatives from Dns to tryptophan and its metabolites not only improved the LC separation but also enhanced their MS response...
May 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28489910/random-domain-name-and-address-mutation-rdam-for-thwarting-reconnaissance-attacks
#14
Kai Wang, Xi Chen, Yuefei Zhu
Network address shuffling is a novel moving target defense (MTD) that invalidates the address information collected by the attacker by dynamically changing or remapping the host's network addresses. However, most network address shuffling methods are limited by the limited address space and rely on the host's static domain name to map to its dynamic address; therefore these methods cannot effectively defend against random scanning attacks, and cannot defend against an attacker who knows the target's domain name...
2017: PloS One
https://www.readbyqxmd.com/read/28476166/predictors-of-failure-of-dise-directed-adenotonsillectomy-in-children-with-sleep-disordered-breathing
#15
Noura Alsufyani, Andre Isaac, Manisha Witmans, Paul Major, Hamdy El-Hakim
BACKGROUND: Adenotonsillectomy (AT) is the most commonly performed procedure for sleep disordered breathing (SDB) in pediatrics. However, 20-40% of patients will have persistent signs and symptoms of SDB after AT. Drug-induced sleep endoscopy (DISE) has the potential to individualize surgical treatments and avoid unnecessary or unsuccessful surgeries. The objective of this study was to determine the predictors of failure of DISE-directed adenoidectomy and/or tonsillectomy in otherwise healthy children with SDB...
May 5, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28425146/a-deep-nasopharyngeal-swab-versus-nonendoscopic-bronchoalveolar-lavage-for-isolation-of-bacterial-pathogens-from-preweaned-calves-with-respiratory-disease
#16
L Van Driessche, B R Valgaeren, L Gille, F Boyen, R Ducatelle, F Haesebrouck, P Deprez, B Pardon
BACKGROUND: Nonendoscopic bronchoalveolar lavage (BAL) is a practical alternative for a deep nasopharyngeal swab (DNS) to sample the airways of a large number of calves in a short period of time. The extent of commensal overgrowth and agreement of BAL with DNS culture results in preweaned calves are unknown. OBJECTIVES: To compare commensal overgrowth and bacterial culture results between DNS and BAL samples. ANIMALS: A total of 183 preweaned calves (144 with bovine respiratory disease and 39 healthy animals)...
May 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28416833/-diagnosis-and-treatment-for-the-basicervical-fractures-of-the-trochanteric-region
#17
T C Zhang, Z S Zhang, F Zhou, Y Tian, H Q Ji, Y Guo, Y Lv, Z W Yang, G J Hou
OBJECTIVE: To evaluate the rate of basicervical fractures and document their diagnosis and treatment. METHODS: From January 2005 to May 2016, 28 basicervical fractures of the 832 trochanteric fractures were collected and evaluated. The patients were treated with multiple screws, dynamic hip screw (DHS), intramedullary nail. Via the operation time, postoperative hospitalization, loss of blood duration the operation, hidden blood loss, total blood loss, mean union time and the final follow-up Harris hip score, the characteristics of different internal fixations were compared and analyzed...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28415324/scale-dependence-of-multiplier-distributions-for-particle-concentration-enstrophy-and-dissipation-in-the-inertial-range-of-homogeneous-turbulence
#18
Thomas Hartlep, Jeffrey N Cuzzi, Brian Weston
Turbulent flows preferentially concentrate inertial particles depending on their stopping time or Stokes number, which can lead to significant spatial variations in the particle concentration. Cascade models are one way to describe this process in statistical terms. Here, we use a direct numerical simulation (DNS) dataset of homogeneous, isotropic turbulence to determine probability distribution functions (PDFs) for cascade multipliers, which determine the ratio by which a property is partitioned into subvolumes as an eddy is envisioned to decay into smaller eddies...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28407487/matching-nlr-immune-receptors-to-autoimmunity-in-camta3-mutants-using-antimorphic-nlr-alleles
#19
Signe Lolle, Christiaan Greeff, Klaus Petersen, Milena Roux, Michael Krogh Jensen, Simon Bressendorff, Eleazar Rodriguez, Kenneth Sømark, John Mundy, Morten Petersen
To establish infection, pathogens deploy effectors to modify or remove host proteins. Plant immune receptors with nucleotide-binding, leucine-rich repeat domains (NLRs) detect these modifications and trigger immunity. Plant NLRs thus guard host "guardees." A corollary is that autoimmunity may result from inappropriate NLR activation because mutations in plant guardees could trigger corresponding NLR guards. To explore these hypotheses, we expressed 108 dominant-negative (DN) Arabidopsis NLRs in various lesion mimic mutants, including camta3, which exhibits autoimmunity...
April 12, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28392766/presence-and-absence-of-muscle-contraction-elicited-by-peripheral-nerve-electrical-stimulation-differentially-modulate-primary-motor-cortex-excitability
#20
Ryoki Sasaki, Shinichi Kotan, Masaki Nakagawa, Shota Miyaguchi, Sho Kojima, Kei Saito, Yasuto Inukai, Hideaki Onishi
Modulation of cortical excitability by sensory inputs is a critical component of sensorimotor integration. Sensory afferents, including muscle and joint afferents, to somatosensory cortex (S1) modulate primary motor cortex (M1) excitability, but the effects of muscle and joint afferents specifically activated by muscle contraction are unknown. We compared motor evoked potentials (MEPs) following median nerve stimulation (MNS) above and below the contraction threshold based on the persistence of M-waves. Peripheral nerve electrical stimulation (PES) conditions, including right MNS at the wrist at 110% motor threshold (MT; 110% MNS condition), right MNS at the index finger (sensory digit nerve stimulation [DNS]) with stimulus intensity approximately 110% MNS (DNS condition), and right MNS at the wrist at 90% MT (90% MNS condition) were applied...
2017: Frontiers in Human Neuroscience
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