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Carmen Franken, Gudrun Koppen, Nathalie Lambrechts, Eva Govarts, Liesbeth Bruckers, Elly Den Hond, Ilse Loots, Vera Nelen, Isabelle Sioen, Tim S Nawrot, Willy Baeyens, Nicolas Van Larebeke, Francis Boonen, Daniëlla Ooms, Mai Wevers, Griet Jacobs, Adrian Covaci, Thomas Schettgen, Greet Schoeters
BACKGROUND: We investigated whether human environmental exposure to chemicals that are labeled as (potential) carcinogens leads to increased (oxidative) damage to DNA in adolescents. MATERIAL AND METHODS: Six hundred 14-15-year-old youngsters were recruited all over Flanders (Belgium) and in two areas with important industrial activities. DNA damage was assessed by alkaline and formamidopyrimidine DNA glycosylase (Fpg) modified comet assays in peripheral blood cells and analysis of urinary 8-hydroxydeoxyguanosine (8-OHdG) levels...
October 20, 2016: Environmental Research
Cleve Dionel Mboyi, Carine Maaliki, Amelle Mankou Makaya, Yves Canac, Carine Duhayon, Remi Chauvin
With the view to enhancing the unique coordinating ability of the known phenyl-tetrakis(diisopropylamino)dicyclopropeniophosphine (Ph-DCP), replacement of the phenyl substituent by a tert-butyl substituent was envisaged. Both α-dicationic R-DCP phosphines, with R = Ph and (t)Bu, were prepared in 54%-55% yield by substitution of RPCl2 with two equivalents of bis(diisopropylamino)-dicyclopropenylidene (BAC) and metathesis with NaBF4. This method is implicitly consistent with the representation of R-DCPs as BAC-phosphenium adducts...
October 21, 2016: Inorganic Chemistry
Haruki Kimura, Kazuyoshi Ohkawa, Masanori Miyazaki, Mitsuru Sakakibara, Kazuho Imanaka, Takeshi Tamura, Hironari Sueyoshi, Ryoji Takada, Nobuyasu Fukutake, Hiroyuki Uehara, Reiko Ashida, Tatsuya Ioka, Tetsuro Nakazawa, Katsuyuki Nakanishi, Kazuhiro Katayama
BACKGROUND: Intermediate-stage [Barcelona Clinic Liver Cancer stage-B (BCLC-B)] hepatocellular carcinoma (HCC) comprises of a heterogeneous population of patients with a wide range of tumor burdens. We therefore formulated a subclassification of BCLC-B HCC using the up-to-seven criteria and tumor markers according to the results of a retrospective analysis of these patients. METHODS: This study included 125 patients newly diagnosed with BCLC-B HCC who underwent transarterial chemoembolization...
October 20, 2016: Hepatology International
Cheryl K Zogg, Fernando Payró Chew, John W Scott, Lindsey L Wolf, Thomas C Tsai, Peter Najjar, Olubode A Olufajo, Eric B Schneider, Elliott R Haut, Adil H Haider, Joseph K Canner
Importance: Trauma is the leading cause of death and disability among young adults, who are also among the most likely to be uninsured. Efforts to increase insurance coverage, including passage of the Patient Protection and Affordable Care Act (ACA), were intended to improve access to care and promote improvements in outcomes. However, despite reported gains in coverage, the ACA's success in promoting use of high-quality care and enacting changes in clinical end points remains unclear...
October 19, 2016: JAMA Surgery
Geoffrey Masuyer, Gyles E Cozier, Glenna J Kramer, Brian O Bachmann, K Ravi Acharya
Several soil-derived actinobacteria produce secondary metabolites that are proven specific and potent inhibitors of the human angiotensin-I converting enzyme (ACE), a key target for the modulation of hypertension through its role in the renin-angiotensin-aldosterone system. K-26-DCP is a zinc dipeptidyl carboxypeptidase produced by Astrosporangium hypotensionis, and an ancestral homologue of ACE. Here we report the high resolution crystal structures of K-26-DCP and of its complex with the natural microbial tripeptide product K-26...
October 18, 2016: FEBS Journal
Qiang Hao, Xiuxiu Niu, Changshun Nie, Simeng Hao, Wei Zou, Jiangman Ge, Daimei Chen, Wenqing Yao
SiO2, an insulator, hardly has any photocatalytic acitivity due to its intrinsic property, and it is generally used as a hard template to increase the surface area of catalysts. However, in this work, we found that the surface state of the insulator SiO2 can promote the migration of photogenerated charge carriers, leading to the enhancement of the photooxidation ability of graphitic carbon nitride (g-C3N4). A one-pot calcination method was employed to prepare g-C3N4/SiO2 composites using melamine and SiO2 as precursors...
October 17, 2016: Physical Chemistry Chemical Physics: PCCP
Cancan Xu, Rui Liu, Lvjun Chen, Jialu Tang
Ni/Fe-Fe3O4 nanocomposites were synthesized for dechlorination of 2,4-dichlorophenol (2,4-DCP). The effects of the Ni content in Ni/Fe-Fe3O4 nanocomposites, solution pH, and common dissolved ions on the dechlorination efficiency were investigated, in addition to the reusability of the nanocomposites. The results showed that increasing content of Ni in Ni/Fe-Fe3O4 nanocomposites, from 1 to 5wt.%, greatly increased the dechlorination efficiency; the Ni/Fe-Fe3O4 nanocomposites had much higher dechlorination efficiency than bare Ni/Fe nanoparticles...
October 2016: Journal of Environmental Sciences (China)
Luana Soriano Mota, Claudia Maria Costa de Oliveira, Francisco Martho Leal Pinheiro, Larissa Costa de Oliveira Santos, Danilo Gonçalves Nóbrega, Paula Fbc Fernandes, Alda Angélica de Melo Costa, Sônia Leite da Silva
Introduction: Kidney transplants with expanded criteria donor have been associated with improved patient survival compared to those who remain on dialysis. Objective: To compare renal function and survival of the kidney graft of deceased donor with expanded criteria and standard criteria over a year in a single transplant center. Methods: 255 kidney transplant recipients with deceased donor were included in the study between the years 2011 to 2013 and they were separated into two groups according to the type of donor (expanded criteria donor - ECD - and standard criteria donor - SCD)...
July 2016: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
Nikolai Briffa, Raju Karthickeyan, Joshua Jacob, Arshad Khaleel
The aim of this study was to compare the biomechanical properties of medial and lateral plating of a medially comminuted supracondylar femoral fracture. A supracondylar femoral fracture model comparing two fixation methods was tested cyclically in axial loading. One-centimetre supracondylar gap osteotomies were created in six synthetic femurs approximately 6 cm proximal to the knee joint. There were two constructs investigated: group 1 and group 2 were stabilized with an 8-hole LC-DCP, medially and laterally, respectively...
October 12, 2016: Strategies in Trauma and Limb Reconstruction
D Mulas, J Garcia-Orellana, N Casacuberta, A Hierro, V Moreno, P Masqué
The production of dicalcium phosphate (DCP) uses phosphate rock (PR) as a raw material. Sedimentary phosphate rocks are enriched with relevant concentrations of natural radionuclides from the (238)U decay chain (around 10(3) Bq·kg(-1)), leading to the need of controlling potential exposures to radiation of workers and members of the public in accordance with IAEA safety standards. Indeed, phosphate industries are classified as Naturally Occurring Radioactive Material (NORM) industries. Thus, the aim of this work is to assess the radiological risk of the workers in a DCP production plant located in the Iberian Peninsula (South-West Europe), which digests PR with hydrochloric acid...
October 7, 2016: Journal of Environmental Radioactivity
Peipei Zuo, Yumiao Su, Wenmu Li
Highly conductive anion exchange membranes (AEMs), along with the ability to suppress swelling, are critical but challenging requirements for alkaline fuel cell applications. To achieve this criterion, a series of poly(ether sulfone)s (PESFs) with flexible alkyl imidazolium pendants attached directly on large planar 6,12-bis(4-hydroxyphenyl)-5,11-dihydroindolo[3,2-b]carbazole (DCP) units is reported. The planar DCP units stabilize the hydrophobic phase through strong π-π interactions and also facilitate the formation of ionic conducting channels through self assembly of hydrophilic pendants...
September 26, 2016: Macromolecular Rapid Communications
Predrag Grubor, Milorad Mitković, Milan Grubor, Milan Mitković, Luigi Meccariello, Gabriele Falzarano
INTRODUCTION: Artificial models can be useful at approximate and qualitative research, which should give the preliminary results. Artificial models are usually made of photo-elastic plastic e.g.. juvidur, araldite in the three-dimensional contour shape of the bone. Anatomical preparations consist of the same heterogeneous, structural materials with extremely anisotropic and unequal highly elastic characteristics, which are embedded in a complex organic structure. THE AIM OF THE STUDY: Examine the budget voltage and deformation of: dynamic compression plate (DCP), locking compression plate (LCP), Mitkovic internal fixator (MIF), Locked intramedullary nailing (LIN) on the compressive and bending forces on juvidur and veal bone models and compared the results of these two methods (juvidur, veal bone)...
July 16, 2016: Acta Informatica Medica: AIM
P Sultanik, A Ginguay, J Vandame, T Popovici, J-F Meritet, L Cynober, S Pol, P-N Bories
The increasing incidence of hepatocellular carcinoma (HCC) in Western countries requests reliable tumour markers for preclinical diagnosis. We evaluated the diagnostic accuracy of des-gamma-carboxy prothrombin (DCP), in comparison with alpha-fetoprotein (AFP) in a French cohort using a new analyser. One hundred and sixty-two patients with virus-related cirrhosis (46 HCC patients and 116 controls) were recruited in this retrospective proof-of-concept study. DCP was measured on new Lumipulse(®) G600 analyzer and AFP on usual Cobas e602 analyzer in serum samples that were collected at the time of HCC diagnosis for HCC patients or during follow-up for controls...
October 4, 2016: Journal of Viral Hepatitis
Shu-Xiang Cui, Xin-Feng Yu, Xian-Jun Qu
Des-γ-carboxyprothrombin (DCP), an abnormal prothrombin produced in human hepatocellular carcinoma (HCC), plays crucial roles in the progression of HCC. DCP binding to cellular mesenchymal-epithelial transition factor (c-Met) is an initial event and consequently stimulates HCC through the increase of c-Met-Janus kinase 1- signal transducers and activators of transcription pathways. DCP stimulates HCC invasion through activation of matrix metalloproteinase via upregulation of extracellular signal-regulated kinase-mitogen-activated protein kinase (MAPK) pathway...
October 20, 2016: Cancer Investigation
James Wilkerson, Ebrahim Paryavi, Hyunchul Kim, Anand Murthi, Raymond A Pensy
OBJECTIVES: Although most clavicular fractures are amenable to nonoperative management, metadiaphyseal fractures are considerably more complex, with rates of suboptimal healing as high as 75% when treated nonoperatively. The poor results are ascribed to the deforming forces on the distal clavicle from the surrounding muscles and the weight of the arm. It recently has been noted that some operative fixations of these fractures are also failing when a standard superiorly placed plate is used...
September 20, 2016: Journal of Orthopaedic Trauma
Ping Li, Hechao Li, Jin Li, Xuesong Guo, Junxin Liu, Benyi Xiao
To evaluate the sludge reduction of three metabolic uncouplers (3,3',4',5-tetrachlorosalicylanilide (TCS), 2,4-dichlorophenol (DCP), and tetrakis (hydroxymethyl) phosphonium sulfate (THPS)), we conducted continuous experiments on laboratory-scale anaerobic-anoxic-oxic processes. The three metabolic uncouplers were separately added in each oxic tank of the three systems, and a system without uncoupler addition was used as control. During the 85-day operation, sludge production and observed growth yields decreased to 38...
December 2016: Bioresource Technology
Yukiyasu Okamura, Teiichi Sugiura, Takaaki Ito, Yusuke Yamamoto, Ryo Ashida, Katsuhiko Uesaka
BACKGROUND: Des-γ-carboxy prothrombin (DCP) is a representative tumor marker of hepatocellular carcinoma (HCC), and its values are occasionally very high in HCC cases. The current study aimed to clarify the postoperative half-life of DCP as a prognostic factor. METHODS: This retrospective study enrolled 177 patients who had undergone liver resection as an initial treatment for HCC. Three DCP half-life groups were defined as follows: within the normal range, half-life shorter than 4 days, and half-life of 4 days or longer...
September 14, 2016: Annals of Surgical Oncology
P Bikker, J W Spek, R A Van Emous, M M Van Krimpen
1. The aim of this study, comprising two experiments, was 1) to determine in Experiment 1 the relationship of incremental dietary P content on precaecal digestible P in male broilers and 2) to determine in Experiment 2 the precaecal P digestibility of various inorganic P sources at marginal levels of P supply. 2. In Experiment 1, a total of 260 male Ross 308 broilers were divided into groups of 10 birds per pen resulting in 8 replicates for treatment 1 and 6 replicates for treatment 2 to 4. Experimental diets were formulated to contain 4 incremental concentrations of digestible P by means of increasing concentrations of monocalcium phosphate (MCP)...
September 16, 2016: British Poultry Science
Takahiro Yamagishi, Masakazu Katsumata, Haruyo Yamaguchi, Yohei Shimura, Masanobu Kawachi, Hiroshi Koshikawa, Yoshifumi Horie, Norihisa Tatarazako
The use of delayed fluorescence intensity as an endpoint for rapid estimation of the effective concentration (ECx) has been reported as an alternative to standard growth inhibition (at 72 h after exposure) in some algal species including Pseudokirchneriella subcapitata. In marine algae, although an approach of bioassaying using delayed fluorescence measurements has not been performed yet, its development would provide many benefits for marine environmental risk assessment. In this study, we selected marine cyanobacterium Cyanobium sp...
September 15, 2016: Ecotoxicology
Maurizio Battaglia Parodi, Maria Vittoria Cicinelli, Alessandro Rabiolo, Luisa Pierro, Gianluigi Bolognesi, Francesco Bandello
AIMS: To describe the vascular abnormalities in patients affected by Stargardt disease (STGD1) by means of optical coherence tomography angiography (OCT-A). METHODS: Cross-sectional case series, with the following inclusion criteria: diagnosis of STGD1, clear ocular media, and stable fixation. Patients underwent best-corrected visual acuity (BCVA), biomicroscopy, applanation tonometry, short-wavelength fundus autofluorescence (SW-FAF) (HRA Heidelberg, Germany), 3×3 Swept Source OCT-A (Topcon Corporation, Japan)...
September 14, 2016: British Journal of Ophthalmology
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