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https://www.readbyqxmd.com/read/28532022/a-novel-grapheme-oxide-modified-collagen-chitosan-bio-film-for-controlled-growth-factor-release-in-wound-healing-applications
#1
Ting Liu, Weihua Dan, Nianhua Dan, Xinhua Liu, Xuexu Liu, Xu Peng
Collagen-chitosan composite film modified with grapheme oxide (GO) and 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC), termed CC-G-E film, was loaded with basic fibroblast growth factor (bFGF) as the development of an efficacious wound healing device. In this study we report a novel drug delivery system that prevents the initial burst release and loss of bioactivity of drugs in vitro and in vivo applications. The results showed that CC-G-E film possessed improved thermal stability and a higher rate of crosslinking with increased mechanical properties when the dosage of GO was between 0...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531393/the-rs10401670-variant-in-resistin-gene-improved-insulin-resistance-response-and-metabolic-parameters-secondaries-to-weight-loss-after-a-hypocaloric-diet
#2
Daniel Antonio de Luis, Rocío Aller, Olatz Izaola, David Primo, R Bachiller
BACKGROUND: The SNP 3'UTR C/T (rs10401670), it is a polymorphism that has been associated with diabetes mellitus and it has been scarcely studied before. As far as we know, no studies on interaction among diet intervention, rs10401670 variant of RETN and metabolic response has been realized. OBJECTIVE: Our aim was to analyze the effects of the rs10401670 RETN gene polymorphism on insulin resistance response and metabolic changes secondary to weight loss after 3 months of a hypocaloric diet in adults obese patients without diabetes mellitus...
August 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531346/projector-augmented-wave-method-incorporated-into-gauss-type-atomic-orbital-based-density-functional-theory
#3
Xiao-Gen Xiong, Takeshi Yanai
The Projector Augmented Wave (PAW) method developed by Blochl is well recognized as an efficient, accurate pseudopotential approach in solid-state density functional theory (DFT) calculations with plane-wave basis. Here we present an approach to incorporate the PAW method into the Gauss-type function (GTF) based DFT implementation, which is widely used for molecular quantum chemistry calculations. The nodal and high-exponent GTF components of valence molecular orbitals (MOs) are removed or pseudized by the ultrasoft PAW treatment, while there is elaborate transparency to construct accurate and well-controlled pseudopotential from all-electron atomic description and to reconstruct all-electron form of valence MOs from the pseudo MOs...
May 22, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28531208/phylogenetic-analysis-of-emergent-streptococcus-pneumoniae-serotype-22f-causing-invasive-pneumococcal-disease-using-whole-genome-sequencing
#4
Walter H B Demczuk, Irene Martin, Linda Hoang, Paul Van Caeseele, Brigitte Lefebvre, Greg Horsman, David Haldane, Jonathan Gubbay, Sam Ratnam, Gregory German, Jennifer Daley Bernier, Lori Strudwick, Allison McGeer, George G Zhanel, Gary Van Domselaar, Morag Graham, Michael R Mulvey
Since implementation of the 13-valent polyvalent conjugate vaccine (PCV13) in Canada during 2010, the proportion of PCV13 serotypes causing invasive pneumococcal disease (IPD) has declined from 55% (n = 1492) in 2010 to 31% (n = 764) in 2014. A concurrent increase of non-PCV13 serotypes has occurred and 22F has become the most prevalent serotype in Canada increasing from 7% (n = 183) to 11% (n = 283). Core single nucleotide variant phylogenetic analysis was performed on 137 Streptococcus pneumoniae serotype 22F isolates collected across Canada from 2005-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28531205/cost-analysis-of-human-papillomavirus-related-cervical-diseases-and-genital-warts-in-swaziland
#5
Themba G Ginindza, Benn Sartorius, Xolisile Dlamini, Ellinor Östensson
BACKGROUND: Human papillomavirus (HPV) has proven to be the cause of several severe clinical conditions on the cervix, vulva, vagina, anus, oropharynx and penis. Several studies have assessed the costs of cervical lesions, cervical cancer (CC), and genital warts. However, few have been done in Africa and none in Swaziland. Cost analysis is critical in providing useful information for economic evaluations to guide policymakers concerned with the allocation of resources in order to reduce the disease burden...
2017: PloS One
https://www.readbyqxmd.com/read/28530805/conventional-and-explicitly-correlated-ab-initio-benchmark-study-on-water-clusters-revision-of-the-begdb-and-water27-datasets
#6
Debashree Manna, Manoj Kumar Kesharwani, Nitai Sylvetsky, Jan M L Martin
Benchmark ab initio energies for BEGDB and WATER27 datasets have been re-examined at the MP2 and CCSD(T) levels with both conventional and explicitly correlated (F12) approaches. The basis set convergence of both conventional and explicitly correlated methods has been investigated in detail, both with and without counterpoise corrections. For the MP2 and CCSD-MP2 contributions, rapid basis set convergence observed with explicitly correlated methods compared to conventional methods. However, conventional, orbital-based calculations are preferred for the calculation of the (T) term, since it does not benefit from F12...
May 22, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28530466/angiotensin-type-1-receptor-a1166c-polymorphism-and-systemic-lupus-erythematosus-correlation-with-cellular-immunity-and-oxidative-stress-markers
#7
H Baniamerian, F Bahrehmand, A Vaisi-Raygani, Z Rahimi, T Pourmotabbed
Angiotensin II, one of the rennin-angiotensin system components, is important in the cardiovascular hemodynamic and plays an important role in the development of cardiovascular disease in systemic lupus erythematosus (SLE) patients. The angiotensin II, through interaction with angiotensin II type 1 receptor (AGTR1), promotes proliferation, inflammation and fibrosis. The single nucleotide polymorphism of the AGTR1 (dbSNP: rs5186) gene can be associated with development and progression of SLE disease. The aims of this study were to compare the frequency of AGTR1 rs5186 in SLE patients with healthy individuals and to evaluate possible association between AGTR1 A1166C gene polymorphism and serum level of lipids, neopterin and malondialdehyde in SLE patients from a population of West Iran...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28529650/diagnostic-accuracy-of-ga-68-hbed-cc-psma-ligand-pet-ct-before-salvage-lymph-node-dissection-for-recurrent-prostate-cancer
#8
Cordula A Jilg, Vanessa Drendel, H Christian Rischke, Teresa Beck, Werner Vach, Kathrin Schaal, Ulrich Wetterauer, Wolfgang Schultze-Seemann, Philipp T Meyer
Background: By targeting the prostate-specific membrane antigen (PSMA) on prostate cancer (PCa) cells PSMA-PET/CT shows great potential in locating the site of biochemical recurrence even at low PSA (Prostate-specific antigen)-levels. Accurate imaging of PCa recurrent lymph node metastases (LNM) is crucial for metastases directed therapies such as salvage-lymph node dissection (salvage-LND). Objective: To evaluate the diagnostic accuracy of PSMA-PET/CT for detection of affected lymph-node regions at salvage-LND for nodal recurrence of PCa...
2017: Theranostics
https://www.readbyqxmd.com/read/28529612/adipoq-rs266729-g-c-gene-polymorphism-and-plasmatic-adipocytokines-connect-metabolic-syndrome-to-colorectal-cancer
#9
Rosa Divella, Antonella Daniele, Antonio Mazzocca, Ines Abbate, Porzia Casamassima, Cosimo Caliandro, Eustachio Ruggeri, Emanuele Naglieri, Carlo Sabbà, Raffaele De Luca
Background: ADIPOQ gene, which encode for Adiponectin (APN), is sited on chromosome 3q27 and linked to a susceptibility locus for metabolic syndrome (MetS). The ADIPOQ rs266729 G/C gene polymorphism is significantly associated with low APN levels and linked to susceptibility to develop cancer. In addition, decreased APN serum levels are linked with tumor development and progression and inversely associated with markers of inflammation. Here, we investigate the influence of APN rs266729 G/C polymorphism on adipocytokine circulating levels and their association with MetS in colorectal cancer patients (CRC)...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28529266/preoperative-biliary-drainage-versus-direct-surgery-for-perihilar-cholangiocarcinoma-a-retrospective-study-at-a-single-center
#10
Yulong Cai, Qi Tang, Xianze Xiong, Fuyu Li, Hui Ye, Peipei Song, Nansheng Cheng
Perihilar cholangiocarcinoma (pCC, also known as a Klatskin tumor) is the most common type of cholangiocarcinoma (CC). Preoperative biliary drainage (PBD) is indicated for pCC patients with acute cholangitis or patients who need portal vein embolization (PVE). However, the routine performance of PBD in other patients with pCC is still controversial. The current study retrospectively examined patients with pCC who did not undergo PVE and who did not have cholangitis who were seen at this Hospital to assess the advantages and disadvantages of PBD...
May 22, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28528800/an-innovative-method-of-planning-and-displaying-flap-volume-in-diep-flap-breast-reconstructions
#11
S Hummelink, Arico C Verhulst, Thomas J J Maal, Yvonne L Hoogeveen, Leo J Schultze Kool, Dietmar J O Ulrich
BACKGROUND: Determining the ideal volume of the harvested flap to achieve symmetry in deep inferior epigastric artery perforator (DIEP) flap breast reconstructions is complex. With preoperative imaging techniques such as 3D stereophotogrammetry and computed tomography angiography (CTA) available nowadays, we can combine information to preoperatively plan the optimal flap volume to be harvested. In this proof-of-concept, we investigated whether projection of a virtual flap planning onto the patient's abdomen using a projection method could result in harvesting the correct flap volume...
April 23, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28528372/associations-between-ptpn22-and-tlr9-polymorphisms-and-systemic-lupus-erythematosus-a-comprehensive-meta-analysis
#12
Li-Ya Hu, Zhi Cheng, Bo Zhang, Qiong Yin, Xiao-Wei Zhu, Pian-Pian Zhao, Ming-Yu Han, Xiao-Bo Wang, Hou-Feng Zheng
Previous studies have explored the relationship of PTPN22 and TLR9 polymorphisms with systemic lupus erythematosus (SLE). In consideration of the population stratification, conflicting results and updating data, we conducted a comprehensive meta-analysis, which consists of a total of 17 research articles (9120 cases and 11,724 controls) for PTPN22 and 20 articles (including up to 2808 cases and 3386 controls) for TLR9. Significant association was verified between PTPN22 rs2476601 and SLE in the overall population (OR = 1...
May 20, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28527470/on-the-calculations-of-the-static-electronic-dipole-hyper-polarizability-for-the-free-and-spatially-confined-h
#13
Marta Chołuj, Wojciech Bartkowiak, Paulina Naciążek, Krzysztof Strasburger
The quality of the static electronic dipole (hyper)polarizabilities (α and γ) calculated using the coupled cluster with singles and doubles (CCSD) method and various basis sets for the isolated hydrogen anion (H(-)) was verified against highly accurate results obtained within the variation-perturbation scheme with the optimized explicitly correlated Gaussian functions. Moreover, the influence of spatial confinement on α and γ of H(-) was analyzed. The effect of confinement (orbital compression) was modeled by the spherically symmetric harmonic oscillator potential...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527463/sub-doppler-infrared-spectroscopy-of-ch2oh-radical-in-a-slit-supersonic-jet-vibration-rotation-tunneling-dynamics-in-the-symmetric-ch-stretch-manifold
#14
Michael D Schuder, Fang Wang, Chih-Hsuan Chang, David J Nesbitt
The sub-Doppler CH-symmetric stretch (ν3) infrared absorption spectrum of a hydroxymethyl (CH2OH) radical is observed and analyzed with the radical formed in a slit-jet supersonic discharge expansion (Trot = 18 K) via Cl atom mediated H atom abstraction from methanol. The high sensitivity of the spectrometer and reduced spectral congestion associated with the cooled expansion enable first infrared spectroscopic observation of hydroxymethyl transitions from both ± symmetry tunneling states resulting from large amplitude COH torsional motion...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527443/competition-between-weak-oh%C3%A2-%C3%AF-and-ch%C3%A2-o-hydrogen-bonds-thz-spectroscopy-of-the-c2h2-h2o-and-c2h4-h2o-complexes
#15
J Andersen, J Heimdal, B Nelander, R Wugt Larsen
THz absorption spectra have been recorded for the weakly bound molecular complexes of H2O with C2H4 and C2H2 embedded in cryogenic neon matrices at 2.8 K. The observation and assignment of a large-amplitude acceptor OH librational mode of the C2H2-H2O complex at 145.5 cm(-1) confirms an intermolecular CH⋯O hydrogen-bonded configuration of C2v symmetry with the H2O subunit acting as the hydrogen bond acceptor. The observation and assignment of two large-amplitude donor OH librational modes of the C2H4-H2O complex at 255...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527151/association-of-the-mir-196a2-mir-146a-and-mir-499-polymorphisms-with-asthma-phenotypes-in-a-korean-population
#16
Hoang Kim Tu Trinh, Duy Le Pham, Su-Chin Kim, Ri-Yeon Kim, Hae-Sim Park, Seung-Hyun Kim
BACKGROUND: MicroRNAs (miRNAs) modulate expressions of inflammatory genes, thereby regulating inflammatory responses. Single nucleotide polymorphisms (SNPs) in miRNAs could affect their efficiency in binding to messenger RNAs (mRNAs). OBJECTIVE: We investigated the associations of miRNA SNPs with asthma phenotypes. miR-196a2 (rs11614913 T>C), miR-146a (rs2910164 C>G), and miR-499 (rs3746444 A>G) were genotyped in 347 asthma patients and 172 normal healthy controls (NCs)...
May 19, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28526899/electricity-generation-from-real-industrial-wastewater-using-a-single-chamber-air-cathode-microbial-fuel-cell-with-an-activated-carbon-anode
#17
Hend Omar Mohamed, M Obaid, Enas Taha Sayed, Yang Liu, Jinpyo Lee, Mira Park, Nasser A M Barakat, Hak Yong Kim
This study introduces activated carbon (AC) as an effective anode for microbial fuel cells (MFCs) using real industrial wastewater without treatment or addition of external microorganism mediators. Inexpensive activated carbon is introduced as a proper electrode alternative to carbon cloth and carbon paper materials, which are considered too expensive for the large-scale application of MFCs. AC has a porous interconnected structure with a high bio-available surface area. The large surface area, in addition to the high macro porosity, facilitates the high performance by reducing electron transfer resistance...
May 19, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28526808/the-impact-of-interleukin-10-il-10-gene-4-polymorphisms-on-peripheral-blood-il-10-variation-and-prostate-cancer-risk-based-on-published-studies
#18
Tingting Men, Cuicui Yu, Dan Wang, Fang Liu, Jingjing Li, Xiaoying Qi, Chunhua Yang, Wenguo Jiang, Xiaodan Wei, Xuri Li, Bin Wang, Jia Mi, Geng Tian
This study purported to investigate the impact of interleukin-10 (IL-10) gene 4 polymorphisms (-1082G>A, -819T>C, -592A>C and 210T>C) on peripheral blood IL-10 variation and prostate cancer (PCa) risk, with a special consideration given to various origins of between-study heterogeneity. 2 researchers independently fulfilled literature retrieval, quality assessment and information collection. Sub-grouped analyses per ethnicity, continent, design type, control source, genotyping procedure, genotype validation, age-matched status, study sample size, quality score and controls' mean age were conducted, respectively...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526559/a-single-nucleotide-polymorphism-of-cyclin-dependent-kinase-inhibitor-1b-p27-kip1-associated-with-human-vein-graft-failure-affects-growth-of-human-venous-adventitial-cells-but-not-smooth-muscle-cells
#19
Richard D Kenagy, Shinsuke Kikuchi, Lihua Chen, Errol S Wijelath, Andrew B Stergachis, John Stamatoyannopoulos, Gale L Tang, Alexander W Clowes, Michael Sobel
BACKGROUND: Cyclin-dependent kinase inhibitor 1B (p27(Kip1)) is a cell-cycle inhibitor whose -838C>A single nucleotide polymorphism (rs36228499; hereafter called p27 SNP) has been associated with the clinical failure of peripheral vein grafts, but the functional effects of this SNP have not been demonstrated. METHODS: Human saphenous vein adventitial cells and intimal/medial smooth muscle cells (SMCs) were derived from explants obtained at the time of lower extremity bypass operations...
May 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28526450/the-association-of-single-nucleotide-polymorphisms-in-the-oxytocin-receptor-and-g-protein-coupled-receptor-kinase-6-grk6-genes-with-oxytocin-dosing-requirements-and-labor-outcomes
#20
Chad A Grotegut, Emily Ngan, Melanie E Garrett, Marie Lynn Miranda, Allison E Ashley-Koch, Geeta K Swamy
BACKGROUND: Oxytocin is a potent uterotonic agent that is widely used for induction and augmentation of labor. Oxytocin has a narrow therapeutic index and the optimal dosing for any individual woman varies widely. OBJECTIVE: The objective of this study was to determine if genetic variation in the oxytocin receptor (OXTR) or in the gene encoding G protein-coupled receptor kinase 6 (GRK6), which regulates desensitization of the OXTR, could explain variation in oxytocin dosing and labor outcomes among women being induced near term...
May 16, 2017: American Journal of Obstetrics and Gynecology
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