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https://www.readbyqxmd.com/read/28534270/occurrence-distribution-and-attenuation-of-pharmaceuticals-and-personal-care-products-in-the-riverside-groundwater-of-the-beiyun-river-of-beijing-china
#1
Lei Yang, Jiang-Tao He, Si-Hui Su, Ya-Feng Cui, De-Liang Huang, Guang-Cai Wang
This study investigated the occurrence, seasonal-spatial distribution characteristics, and attenuation process of 15 pharmaceuticals and personal care products (PPCPs) in riverside sections of Beiyun River of Beijing. The overall PPCP levels both in surface water and riverside groundwater were moderate on the global scale, and showed higher concentrations in the dry season mainly caused by water temperature variation. Caffeine (CF), carbamazepine (CBZ), metoprolol (MTP), N,N-diethyl-meta-toluamide (DEET), diclofenac (DF), bezafibrate (BF), and gemfibrozil (GF) were seven representative PPCPs, because the rest eight studied compounds occurred in low concentrations and less than 15% of the total concentration of PPCPs...
May 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28527425/effects-of-the-summer-holiday-season-on-uv-filter-and-illicit-drug-concentrations-in-the-korean-wastewater-system-and-aquatic-environment
#2
Ki Yong Kim, Kalu Ibe Ekpeghere, Hee-Jin Jeong, Jeong-Eun Oh
Seasonal variations in the concentrations of eight ultraviolet (UV) filters and 22 illicit drugs including their metabolites in the Korean aquatic environment were investigated. Seawater samples from three beaches, water samples from two rivers, and influents and effluents from three wastewater treatment plants were analyzed. The UV filter concentrations in the seawater, river water, and effluent samples were 39.4-296, 35.4-117, and 6.84-51.1 ng L(-1), respectively. The total UV filter concentrations in the seawater samples were 1...
May 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28527325/dyslipidemia-management-update
#3
REVIEW
Yingzi Chang, Jacques Robidoux
Association of hypercholesterolemia and atherosclerotic cardiovascular disease (ASCVD) is well established. Reducing low-density lipoprotein-cholesterol (LDL-C) and raising high-density lipoprotein-cholesterol (HDL-C) have been the therapeutic targets to reduce the risk of ASCVD. Cholesterol-lowering medications have been used to provide both primary and secondary prevention of ASCVD for many years by reducing the absorption and reabsorption, promoting excretion, or decreasing the synthesis of cholesterol. Within the past five years, several new classes of cholesterol-lowering drugs have been tested and approved for patients with hypercholesterolemia that are not well controlled by conventional therapy (ezetimibe, bile-acid sequestrants, and statins)...
May 17, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28520930/improved-power-for-tb-phase-iia-trials-using-a-model-based-pharmacokinetic-pharmacodynamic-approach-compared-with-commonly-used-analysis-methods
#4
Robin J Svensson, Stephen H Gillespie, Ulrika S H Simonsson
Background: The demand for new anti-TB drugs is high, but development programmes are long and costly. Consequently there is a need for new strategies capable of accelerating this process. Objectives: To explore the power to find statistically significant drug effects using a model-based pharmacokinetic-pharmacodynamic approach in comparison with the methods commonly used for analysing TB Phase IIa trials. Methods: Phase IIa studies of four hypothetical anti-TB drugs (labelled A, B, C and D), each with a different mechanism of action, were simulated using the multistate TB pharmacometric (MTP) model...
May 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28515085/regulation-of-atp-production-dependences-on-calcium-concentration-and-respiratory-state
#5
Brian D Fink, Fan Bai, Liping Yu, William I Sivitz
Nanomolar free calcium enhances oxidative phosphorylation. However, the effects over a broad concentration range, at different respiratory states, or on specific energy substrates are less clear. We examined the action of varying [Ca(2+)] over respiratory states ranging 4 to 3 on skeletal muscle mitochondrial respiration, potential, ATP production, and H2O2 production using ADP recycling to clamp external [ADP]. 450 nM calcium enhanced respiration in mitochondria energized by the complex I substrates, glutamate/malate (but not succinate) at [ADP] of 4-256 µM, but more substantially at intermediate respiratory states and not all at state 4...
May 17, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28499679/aeromedical-ultrasound-the-evaluation-of-point-of-care-ultrasound-during-helicopter-transport
#6
Jeffrey G Yates, Denise Baylous
INTRODUCTION: This study correlated the eFAST findings performed in-flight by the flight crew with the findings obtained by the trauma team upon initial evaluation at a level 1 trauma center and with the subsequent CT scans that were performed or the surgeon's operative note. We hypothesize that aeromedical eFAST examinations are highly correlated with the trauma teams findings. METHODS: This prospective, observational study evaluated 190 traumatically injured patients from June 2014 to December 2015 in Southeast Virginia and Northeast North Carolina...
May 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28486321/evaluation-tool-for-assessing-a-newly-implemented-massive-transfusion-protocol
#7
Shannon Broxton, Regina Medeiros, Autumn Schumacher
Exsanguination requires massive blood product replacement and termination of the bleeding source to prevent hemorrhagic shock and death. Massive transfusion protocols (MTPs) are algorithms that allow the health care team to quickly stabilize the bleeding patient and guide blood product administration. However, no national MTP guidelines or a standardized evaluation tool exist for collecting and reporting MTP-related data. The purpose of this article is to describe an original MTP evaluation tool, how it was used, barriers encountered, and a framework for reporting the MTP evaluation data...
May 2017: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/28477219/reliability-of-ultrasound-grading-traditional-score-and-new-global-omeract-eular-score-system-gloess-results-from-an-inter-and-intra-reading-exercise-by-rheumatologists
#8
Lucio Ventura-Ríos, Cristina Hernández-Díaz, Diana Ferrusquia-Toríz, Esteban Cruz-Arenas, Pedro Rodríguez-Henríquez, Ana Laura Alvarez Del Castillo, Alfredo Campaña-Parra, Efrén Canul, Gerardo Guerrero Yeo, Juan Jorge Mendoza-Ruiz, Mario Pérez Cristóbal, Sandra Sicsik, Karina Silva Luna
This study aims to test the reliability of ultrasound to graduate synovitis in static and video images, evaluating separately grayscale and power Doppler (PD), and combined. Thirteen trained rheumatologist ultrasonographers participated in two separate rounds reading 42 images, 15 static and 27 videos, of the 7-joint count [wrist, 2nd and 3rd metacarpophalangeal (MCP), 2nd and 3rd interphalangeal (IPP), 2nd and 5th metatarsophalangeal (MTP) joints]. The images were from six patients with rheumatoid arthritis, performed by one ultrasonographer...
May 5, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28475422/the-flavonoid-derivative-4-nitro-6-hydroxyflavone-suppresses-the-activity-of-hnf4%C3%AE-and-stimulates-the-degradation-of-hnf4%C3%AE-protein-through-the-activation-of-ampk
#9
Jun Inoue, Shiori Ikeda, Tomohiko Kanayama, Ryuichiro Sato
Hepatocyte nuclear factor 4α (HNF4α) is a nuclear receptor that regulates the expression of genes involved in a number of critical metabolic pathways. The modulation of HNF4α activity is thought to be a promising drug target pathway for hyperlipidemia. To identify compounds that reduce the activity of HNF4α, we conducted luciferase reporter assays using the promoter region of microsomal triglyceride transfer protein (MTP) gene, which contains an HNF4α-responsive element. Using this system, we show here that the flavonoid derivative 4'-nitro-6-hydroxyflavone (NOHF) suppresses MTP promoter activity...
May 5, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28460705/massive-transfusion-protocol-simulation-an-innovative-approach-to-team-training
#10
REVIEW
Allison Langston, Dayna Downing, Jennifer Packard, Marion Kopulos, Shelley Burcie, Kay Martin, Brennan Lewis
At a 72-bed pediatric facility, a multidisciplinary team approach was used to prepare for the expansion of services for patients requiring spinal fusion. This preparation included emergency response requiring massive transfusion, necessitating the need for a Massive Transfusion Protocol (MTP) process to be in place. Such instances are low volume/high risk, creating difficulty for staff to gain and maintain proficiency with the equipment and processes related to the MTP in a secure environment. The purpose of this article is to highlight the preparation and education put into place before receiving the first pediatric patient for spinal fusion...
June 2017: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/28456636/continuous-flow-injection-microfluidic-thrombin-assays-the-effect-of-binding-kinetics-on-observed-enzyme-inhibition
#11
Manoj K Ramjee, Sital Patel
A microfluidic assay for monitoring the inhibition of thrombin peptidase activity was developed. The system, which utilised soluble reagents in continuous-flow injection mode, was configured so as to allow inhibitor titrations via gradient formation. This microfluidic continuous-flow injection titration assay (CFITA) enabled the potency of a set of small-molecule serine peptidase inhibitors (SPIs) to be evaluated. The results, compared to standard microtiter plate (MTP) data, indicated that a microfluidic CFITA provided an efficient and effective method for evaluating compound potency...
April 27, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28452877/incompatible-type-a-plasma-transfusion-in-patients-requiring-massive-transfusion-protocol-outcomes-of-an-east-multicenter-study
#12
W Tait Stevens, Bryan C Morse, Andrew Bernard, Dan Davenport, Valerie G Sams, Michael Goodman, Russell Dumire, Matt Carrick, Patrick McCarthy, James R Stubbs, Timothy Pritts, Christopher J Dente, Xian Luo-Owen, Jason Gregory, David Turay, Dina Gomaa, Juan C Quispe, Caitlin A Fitzgerald, Nadeem Haddad, Asad Choudhry, Jose Quesada, Martin D Zielinski
With a relative shortage of type AB plasma, many centers have converted to type A plasma for resuscitation of patients whose blood type is unknown. The goal of this study is to determine outcomes for trauma patients who received incompatible plasma transfusions as part of a massive transfusion protocol (MTP). METHODS: As part of an EAST multi-institutional trial, registry and blood bank data were collected from 8 trauma centers for trauma patients (age ≥ 15 years) receiving emergency release plasma transfusions as part of MTPs from January 2012 - August 2016...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28449701/arthroscopic-treatment-of-focal-osteochondral-lesions-of-the-first-metatarsophalangeal-joint
#13
Ersin Kuyucu, Harun Mutlu, Serhat Mutlu, Baris Gülenç, Mehmet Erdil
BACKGROUND: Although arthroscopic surgical treatment of the first metatarsophalangeal (MTP) joint involves painful sesamoid excision, synovectomy, debridement, and partial cheilectomy, no gold standard treatment technique has been defined in the literature for hallux rigidus and focal osteochondral lesions. This study aimed to assess the arthroscopic treatment for early grade focal osteochondral lesions of the first MTP joint and to determine the impact of arthroscopic microhole drill surgery on foot function and activities of daily living in a group of patients who failed conservative treatment...
April 27, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28436005/fast-and-reliable-strain-characterization-of-streptomyces-lividans-through-micro-scale-cultivation
#14
Joachim Koepff, Matthias Keller, C Konstantinos Tsolis, Tobias Busche, Christian Rückert, Mohamed B Hamed, Jozef Anné, Joern Kalinowski, Wolfgang Wiechert, Anastassios Economou, Marco Oldiges
Filamentous organisms of the genus Streptomyces play an important role in industrial production processes, due to their extensive secondary metabolism variability, as well as their ability to secrete efficiently large amounts of (heterologous) proteins. While genetic engineering tools are available to rapidly build up large strain libraries, the subsequent strain screening and bioprocess development still constitutes a bottleneck. This is due to the lack of reliable parallelized and accelerated cultivation techniques for morphologically challenging organisms...
April 24, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28435580/first-and-second-metatarsophalangeal-joint-open-dislocations-a-case-report
#15
A Sharma, R Dosajh, G S Bedi, K Gupta, A Jain
Dislocation of multiple metatarsophalangeal joint is an uncommon injury. The mechanism of injury is a high energy force distal to proximal with foot in hyperextension at the metatarsophalangeal (MTP) joint. The acute hyperextension of the toe at the moment of injury causes avulsion of the plantar part of the capsule from the junction of head and neck of the metatarsal. If the collateral ligaments remain intact, they maintain the locked fibrocartilaginous plate over the dorsum of the head of the metatarsal, making closed reduction impossible...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28431974/unique-mitochondrial-localization-of-arginase-1-and-2-in-hepatocytes-of-air-breathing-walking-catfish-clarias-batrachus-and-their-differential-expression-patterns-under-hyper-ammonia-stress
#16
Bodhisattwa Banerjee, Debaprasad Koner, Priyanka Lal, Nirmalendu Saha
Arginase (ARG) catalyzes the final step of ornithine-urea cycle (OUC) leading to a conversion of L-arginine to L-ornithine and urea. Several isoforms of ARG have been reported in vertebrates, out of which the two predominant isoforms are the cytosolic ARG1 and the mitochondrial ARG2. The air-breathing walking catfish (Clarias batrachus) is frequently being challenged by different environmental insults such as hyper-ammonia, dehydration and osmotic stresses in their natural habitats throughout the year. The present study investigated the active presence of ARG1 and ARG2 isoforms in hepatocytes along with unique localization of both the isoforms inside the mitochondria, and also their specific expression patterns under hyper-ammonia stress (5mM NH4Cl) in isolated hepatocytes of walking catfish...
April 18, 2017: Gene
https://www.readbyqxmd.com/read/28431141/grade-and-location-of-power-doppler-are-predictive-of-damage-progression-in-rheumatoid-arthritis-patients-in-clinical-remission-by-anti-tumour-necrosis-factor-%C3%AE
#17
Bernd Raffeiner, Enrico Grisan, Costantino Botsios, Roberto Stramare, Gaia Rizzo, Livio Bernardi, Leonardo Punzi, Francesca Ometto, Andrea Doria
Objectives.: To investigate power Doppler (PD) signal, grade and location and their association with radiographic progression in RA patients in remission. Methods: . A prospective observational study was conducted in 125 consecutive RA patients in stable 28-joint DAS (DAS28) remission (⩾6 months) achieved on anti-TNF-α. At baseline, patients in stable remission underwent radiographic and US examination of the wrists and MCP, PIP and MTP joints. Semi-quantitative PD scoring (0-3) was recorded...
April 20, 2017: Rheumatology
https://www.readbyqxmd.com/read/28424896/maximum-tongue-pressure-is-associated-with-swallowing-dysfunction-in-als-patients
#18
Aya Hiraoka, Mineka Yoshikawa, Masahiro Nakamori, Naohisa Hosomi, Toshikazu Nagasaki, Takahiro Mori, Masaya Oda, Hirofumi Maruyama, Mitsuyoshi Yoshida, Yuishin Izumi, Masayasu Matsumoto, Kazuhiro Tsuga
Maximum tongue pressure (MTP) measurement is a convenient, less invasive assessment that has been developed to quantify tongue strength; however, it is unclear whether MTP is useful for the detection of swallowing disorders in amyotrophic lateral sclerosis (ALS) patients. The purpose of this study was to clarify the relationship between MTP and the characteristics of swallowing disorders on videofluorography and to determine the usefulness of tongue pressure measurement for the assessment of swallowing function in ALS patients...
April 19, 2017: Dysphagia
https://www.readbyqxmd.com/read/28424137/improvement-of-treatment-outcomes-after-implementation-of-a-massive-transfusion-protocol-a-level-i-trauma-center-experience
#19
Andrew Nunn, Peter Fischer, Ronald Sing, Megan Templin, Michael Avery, A Britton Christmas
We assessed the effectiveness of the implementation of an institutional massive transfusion protocol (MTP) for resuscitation with a 1:1:1 transfusion ratio of packed red blood cell (PRBC), fresh frozen plasma, and platelet units. In a Level I trauma center database, all trauma admissions (2004-2012) that received massive transfusions (≥10 units PRBCs in the first 24 hours) were reviewed retrospectively. Demographic data, transfusion ratios, and outcomes were compared before (PRE) and after (POST) MTP implementation in May 2008...
April 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28419801/on-surface-pseudo-high-dilution-synthesis-of-macrocycles-principle-and-mechanism
#20
Qitang Fan, Tao Wang, Jingya Dai, Julian Kuttner, Gerhard Hilt, J Michael Gottfried, Junfa Zhu
Macrocycles have attracted much attention due to their specific "endless" topology, which results in extraordinary properties compared to related linear (open-chain) molecules. However, challenges still remain in their controlled synthesis with well-defined constitution and geometry. Here, we report the successful application of the (pseudo-)high-dilution method to the conditions of on-surface synthesis in ultrahigh vacuum. This approach leads to high yields (up to 84%) of cyclic hyperbenzene ([18]-honeycombene) via an Ullmann-type reaction from 4,4″-dibromo-meta-terphenyl (DMTP) as precursor on a Ag(111) surface...
April 24, 2017: ACS Nano
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