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https://www.readbyqxmd.com/read/30326386/dietary-intake-of-4-nonylphenol-and-bisphenol-a-in-taiwanese-population-integrated-risk-assessment-based-on-probabilistic-and-sensitive-approach
#1
Wei-Hsiang Chang, Shou-Chun Liu, Hsiu-Ling Chen, Ching-Chang Lee
4-Nonylphenol (NP) and bisphenol A (BPA) are high-production and high-volume chemicals used to manufacture various commercial products. They are also ubiquitous contaminants that disrupt endocrine systems in wildlife and humans. We collected, from Taiwan cities with the highest food production, and analyzed, using high performance liquid chromatography tandem mass spectrometry (HPLC/MS/MS), 278 food samples for NP and BPA from 11 categories. We found background levels of 100% for NP and 72% for BPA in total samples...
October 10, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/30326364/a-gold-nanocluster-chemical-tongue-sensor-array-for-alzheimer-s-disease-diagnosis
#2
Xiaojuan Han, Zhentao Man, Shenghao Xu, Lin Cong, Yongxiang Wang, Xiang Wang, Yifeng Du, Qinghua Zhang, Shi Tang, Zengfa Liu, Wei Li
Alzheimer's disease (AD) is a common neurodegenerative disorder in elderly people, and is associated with a heavy financial burden on our society. The use of serologic biomarkers is an attractive method to diagnose AD. Although the determination of blood-based biomarkers for AD has been explored in many studies, few practical diagnosis methods have been used in the clinic. In this work, we constructed a "chemical tongue" sensor array that is easy to use and based on four kinds of fluorescent gold nanoclusters (Au NCs) for discriminating between multiple proteins at nanomolar concentrations...
October 10, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/30326284/formulation-performance-and-processability-window-for-manufacturing-a-dual-polymer-amorphous-solid-dispersion-via-hot-melt-extrusion-and-strand-pelletization
#3
T R Hörmann, N Jäger, A Funke, R-K Mürb, J G Khinast, A Paudel
This work evaluates several compositions of an amorphous solid dispersion (ASD) comprising nimodipine (NMD) as poorly soluble model API in a dual-polymer carrier system. HPMC E5 and Eudragit E were used for the two polymeric carriers. The formulation was designed for hot-melt extrusion (HME) and subsequent strand pelletization. The aim was to identify a formulation window with desired functional ASD performance, i.e. physical stability and immediate API release, as well as processability in strand pelletization...
October 13, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/30326272/engineering-a-bispecific-antibody-with-a-common-light-chain-identification-and-optimization-of-an-anti-cd3-epsilon-and-anti-gpc3-bispecific-antibody-ery974
#4
Hirotake Shiraiwa, Atsushi Narita, Mika Kamata-Sakurai, Takahiro Ishiguro, Yuji Sano, Naoka Hironiwa, Takashi Tsushima, Hiroaki Segawa, Toshiaki Tsunenari, Yosuke Ikeda, Yoko Kayukawa, Mizuho Noguchi, Tetsuya Wakabayashi, Akihisa Sakamoto, Hiroko Konishi, Taichi Kuramochi, Mika Endo, Kunihiro Hattori, Junichi Nezu, Tomoyuki Igawa
The antibody drug market is rapidly expanding, and various antibody engineering technologies are being developed to create antibodies that can provide better benefit to patients. Although bispecific antibody drugs have been researched for more than 30 years, currently only a limited number of bispecific antibodies have achieved regulatory approval. Of the few successful examples of industrially manufacturing a bispecific antibody, the "common light chain format" is an elegant technology that simplifies the purification of a whole IgG-type bispecific antibody...
October 13, 2018: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/30326017/combustible-and-electronic-tobacco-and-marijuana-products-in-hip-hop-music-videos-2013-2017
#5
Kristin E Knutzen, Meghan Bridgid Moran, Samir Soneji
Importance: Hip-hop is the leading music genre in the United States and its fan base includes a large proportion of adolescents and young adults of all racial and ethnic groups, particularly minorities. The appearance of combustible and electronic tobacco and marijuana products, especially brand placement and use by popular and influential artists, may increase the risk of tobacco and marijuana use and decrease perceptions of harm. Objective: To assess the prevalence of the appearance and use of combustible and electronic tobacco and marijuana products, including brand placement, in leading hip-hop songs...
October 15, 2018: JAMA Internal Medicine
https://www.readbyqxmd.com/read/30325942/2-octyl-cyanoacrylate-sealing-of-the-pancreatic-remnant-after-distal-pancreatectomy-a-prospective-pilot-study
#6
Felix J Hüttner, Pascal Probst, Hannes G Kenngott, Phillip Knebel, Thilo Hackert, Alexis Ulrich, Markus W Büchler, Markus K Diener
BACKGROUND: Postoperative pancreatic fistula (POPF) remains a frequent problem especially after distal pancreatectomy. The application of 2-octyl cyanoacrylate showed promising results in the reduction of POPF after pancreatoduodenectomy prompting an expansion of this technique to distal pancreatectomy. Thus, the objective of the current study was to assess safety, feasibility and preliminary efficacy of an intraoperative 2-octyl cyanoacrylate application after distal pancreatectomy. METHODS: Between April 2015 and June 2016 adult patients scheduled for elective distal pancreatectomy were considered eligible for the study...
2018: PloS One
https://www.readbyqxmd.com/read/30325716/a-field-evaluation-of-a-single-sampler-for-respirable-and-inhalable-indium-and-dust-measurements-at-an-indium-tin-oxide-manufacturing-facility
#7
Brie Hawley, Jenna L Gibbs, Kristin Cummings, Aleksandr B Stefaniak, Ji Young Park, Marcia Stanton, M Abbas Virji
Indium-tin oxide production has increased greatly in the last twenty years subsequent to increased global demand for touch screens and photovoltaics. Previous studies used measurements of indium in blood as an indicator of indium exposure and observed associations with adverse respiratory outcomes. However, correlations between measurements of blood indium and airborne respirable indium are inconsistent, in part because of the long half-life of indium in blood, but also because respirable indium measurements do not incorporate inhalable indium that can contribute to the observed biological burden...
October 16, 2018: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/30325547/effects-of-storage-conditions-on-two-platelet-agonists-for-whole-blood-impedance-platelet-aggregometry-in-dogs
#8
Sarah B Shropshire, Christine S Olver
BACKGROUND: Whole blood impedance platelet aggregometry (Multiplate-) can be performed with different agonists to evaluate platelet function. Although the manufacturer recommends disposal of stored reagents after 1 month at -20°C or 24 hours at 4°C, reagent integrity after reconstitution under different storage conditions is unknown. If reagent integrity is stable for longer periods, assay costs could decrease dramatically. OBJECTIVES: This study aimed to determine the stability of reconstituted arachidonic acid (AA) and adenosine diphosphate (ADP) platelet agonists stored at -20°C and -80°C for up to 6 months...
October 16, 2018: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/30325305/avurt-aspirin-versus-placebo-for-the-treatment-of-venous-leg-ulcers-a-phase-ii-pilot-randomised-controlled-trial
#9
Helen Tilbrook, Laura Clark, Liz Cook, Martin Bland, Hannah Buckley, Ian Chetter, Jo Dumville, Chris Fenner, Rachael Forsythe, Rhian Gabe, Keith Harding, Alison Layton, Ellie Lindsay, Catriona McDaid, Christine Moffatt, Debbie Rolfe, Illary Sbizzera, Gerard Stansby, David Torgerson, Peter Vowden, Laurie Williams, Robert Hinchliffe
BACKGROUND: Venous leg ulcers (VLUs) are the most common cause of leg ulceration, affecting 1 in 100 adults. VLUs may take many months to heal (25% fail to heal). Estimated prevalence is between 1% and 3% of the elderly population. Compression is the mainstay of treatment and few additional therapies exist to improve healing. Two previous trials have indicated that low-dose aspirin, as an adjunct to standard care, may improve healing time, but these trials were insufficiently robust. Aspirin is an inexpensive, widely used medication but its safety and efficacy in the treatment of VLUs remains to be established...
October 2018: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/30324562/effect-of-silver-diamine-fluoride-on-adhesion-and-microleakage-of-a-pit-and-fissure-sealant-to-tooth-enamel-in-vitro-trial
#10
J Pérez-Hernández, F C Aguilar-Díaz, R D Venegas-Lancón, C A Á Gayosso, M C Villanueva-Vilchis, J de la Fuente-Hernández
AIM: To identify the effect of silver diamine fluoride in adhesion and microleakage of a pit and fissure sealant to tooth enamel. METHODS: An in vitro study including 120 human molars without caries, and caries grade 1 was performed. Molars were randomly divided into four groups. Occlusal surfaces of groups 2 and 4 were sealed. In groups 1 and 3 silver diamine fluoride (SDF) was placed in the occlusal surface and then molars were sealed according to manufacturer's instructions...
October 15, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/30324422/application-of-a-novel-make-and-test-in-parallel-strategy-to-investigate-the-effect-of-formulation-on-the-pharmacokinetics-of-gdc-0810-in-healthy-subjects
#11
Sravanthi Cheeti, Hao Helen Hou, Eric Nelson, Helen Walker, Buyun Chen, Roland Morley, Mary Gates, Luna Musib, Sandhya Girish, Srikumar Sahasranaman, Lichuan Liu
PURPOSE: GDC-0810, administered orally, was used in Phase I and II clinical studies to treat estrogen receptor positive breast cancers. It contains N-methyl-D-glucamine (NMG) salt of GDC-0810 with 10% sodium lauryl sulfate (SLS) as a surfactant and 15% sodium bicarbonate (NaHCO3 ) as an alkalizing agent to aid dissolution. To improve the processability of the formulation and reduce potential mucosal irritation in future Phase III clinical studies, the salt form and the amount of excipient required further optimization...
October 15, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/30324360/in-vivo-evaluation-of-taste-masked-fast-disintegrating-sublingual-tablets-of-epinephrine-microcrystals
#12
Ousama Rachid, Keith J Simons, Mutasem Rawas-Qalaji
In community settings, IM injection of 0.3 mg epinephrine (Epi) using an auto-injector is the drug of choice for treatment of anaphylaxis. Previously, a taste-masking (TM) formulation of fast-disintegrating sublingual tablets (FDSTs) was developed in our lab. Also, Epi was micronized (Epi-MC) successfully and reduced the previously achieved bioequivalent sublingual Epi dose to 0.3 mg IM injection by half using non-taste-masked fast-disintegrating sublingual tablets (TM-FDSTs). Our objective for this study was to evaluate the sublingual absorption of Epi-MC using TM-FDST...
October 15, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/30324257/phenotypic-susceptibility-to-pyrethroids-and-organophosphate-of-wild-stomoxys-calcitrans-diptera-muscidae-populations-in-southwestern-france
#13
Krajana Tainchum, Sharif Shukri, Gérard Duvallet, Lucas Etienne, Philippe Jacquiet
Stomoxys calcitrans (Diptera: Muscidae), is an important vector of lumpy skin disease and bovine besnoitiosis in Europe. Control of this biting fly could represent a keystone in the containment of this emerging disease. Reports of insecticide resistance in S. calcitrans are scarce in Europe. Therefore, the purpose of this study was to evaluate the phenotypic susceptibility to deltamethrin, cypermethrin and phoxim of five wild S. calcitrans populations from southwestern France, where transmission of bovine besnoitiosis is very prevalent...
October 15, 2018: Parasitology Research
https://www.readbyqxmd.com/read/30324224/risk-based-comparability-assessment-for-monoclonal-antibodies-during-drug-development-a-clinical-pharmacology-perspective
#14
Yanli Zhuang, Di Chen, Amarnath Sharma, Zhenhua Xu
Due to complexities in the structure, function, and manufacturing process of antibody-based therapeutic proteins, comparability assessment for supporting manufacturing changes can sometimes be a challenging task. Regulatory guidance recommends a hierarchical risk-based approach, starting with Chemistry, Manufacturing, and Controls (CMC) analytical characterizations, followed by non-clinical and/or clinical studies to ensure that any potential changes in quality attributes have no adverse impact on efficacy and safety of the product...
October 15, 2018: AAPS Journal
https://www.readbyqxmd.com/read/30323994/the-road-to-zero-a-vision-for-achieving-zero-roadway-deaths-by-2050
#15
Liisa Ecola, Steven W Popper, Richard Silberglitt, Laura Fraade-Blanar
Imagine that, in 2050, not a single person in the United States dies in a traffic crash. This is the scenario described in this article, in which RAND researchers set forth a vision and strategy for achieving zero roadway deaths by 2050. The authors propose that a combination of three approaches can realize this scenario. The first is doubling down on programs and policies that have already been shown to be effective, including laws and enforcement, changes to roadway infrastructure designed to reduce traffic conflicts, reductions in speeds where crashes are likely, improvements to emergency response and trauma care, and more safety education and outreach...
October 2018: Rand Health Quarterly
https://www.readbyqxmd.com/read/30323957/raman-spectroscopy-based-identification-of-toxoid-vaccine-products
#16
Anja Silge, Thomas Bocklitz, Bjoern Becker, Walter Matheis, Juergen Popp, Isabelle Bekeredjian-Ding
Vaccines are complex biomedicines. Manufacturing is time consuming and requires a high level of quality control (QC) to guarantee consistent safety and potency. An increasing global demand has led to the need to reduce time and cost of manufacturing. The evolving concepts for QC and the upcoming threat of falsification of biomedicines define a new need for methods that allow the fast and reliable identification of vaccines. Raman spectroscopy is a non-destructive technology already established in QC of classical medicines...
2018: NPJ Vaccines
https://www.readbyqxmd.com/read/30323955/cell-culture-derived-influenza-vaccines-in-the-severe-2017-2018-epidemic-season-a-step-towards-improved-influenza-vaccine-effectiveness
#17
REVIEW
Ian G Barr, Ruben O Donis, Jacqueline M Katz, John W McCauley, Takato Odagiri, Heidi Trusheim, Theodore F Tsai, David E Wentworth
The 2017-2018 seasonal influenza epidemics were severe in the US and Australia where the A(H3N2) subtype viruses predominated. Although circulating A(H3N2) viruses did not differ antigenically from that recommended by the WHO for vaccine production, overall interim vaccine effectiveness estimates were below historic averages (33%) for A(H3N2) viruses. The majority (US) or all (Australian) vaccine doses contained multiple amino-acid changes in the hemagglutinin protein, resulting from the necessary adaptation of the virus to embryonated hen's eggs used for most vaccine manufacturing...
2018: NPJ Vaccines
https://www.readbyqxmd.com/read/30323885/photochemical-crosslinking-of-caries-affected-dentin-combined-with-total-or-self-etch-systems
#18
Yoomin Ahn, Ricardo Lamy, Cynthia L Darling, Jay M Stewart, Lilliam M Pinzon
PURPOSE: To evaluate the effects of collagen crosslinking with riboflavin 0.1% and ultraviolet-A (UVA) 5.4 J on bond strength of total-etch or self-etch adhesives on caries-affected dentin. METHODS: Sixty human caries-affected molars were randomly divided into three groups: control (C), riboflavin (R), and riboflavin + 3 minutes of UVA (R+UVA). After each treatment, either total-etch or self-etch adhesives were applied following the manufacturer's instructions, and composite stubs were built up on the treated surfaces...
2018: American Journal of Translational Research
https://www.readbyqxmd.com/read/30323585/a-review-of-using-green-chemistry-methods-for-biomaterials-in-tissue-engineering
#19
REVIEW
Hossein Jahangirian, Ensieh Ghasemian Lemraski, Roshanak Rafiee-Moghaddam, Thomas J Webster
Although environmentally safe, or green, technologies have revolutionized other fields (such as consumables, automobiles, etc.), its use in biomaterials is still at its infancy. However, in the few cases in which safe manufacturing technology and materials have been implemented to prevent postpollution and reduce the consumption of synthesized scaffold (such as bone, cartilage, blood cell, nerve, skin, and muscle) has had a significant impact on different applications of tissue engineering. In the present research, we report the use of biological materials as templates for preparing different kinds of tissues and the application of safe green methods in tissue engineering technology...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/30323561/pleiotropic-effects-and-pharmacological-properties-of-penehyclidine-hydrochloride
#20
REVIEW
Yaguang Wang, Yafen Gao, Jun Ma
Background: Penehyclidine hydrochloride (PHC) is an anticholinergic drug manufactured in China. It is used widely in clinics as a reversal agent in cases of organic phosphorus poisoning and as a preanesthetic medication. Compared with other anticholinergic agents, PHC confers substantial advantages. Here, in this review, we focus on its important clinical effects for organic phosphorus poisoning, preanesthetic medication, and the protective effects on certain visceral organs. Materials and methods: Our bibliographic sources include the PubMed and China National Knowledge Infrastructure (CNKI) databases, updated in March 2018...
2018: Drug Design, Development and Therapy
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