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https://www.readbyqxmd.com/read/28532050/full-in-vitro-analyses-of-new-generation-bulk-fill-dental-composites-cured-by-halogen-light
#1
Tuçe Hazal Tekin, Aysel Kantürk Figen, Pınar Yılmaz Atalı, Bilge Coşkuner Filiz, Mehmet Burçin Pişkin
The objective of this study was to investigate the full in-vitro analyses of new-generation bulk-fill dental composites cured by halogen light (HLG). Two types' four composites were studied: Surefill SDR (SDR) and Xtra Base (XB) as bulk-fill flowable materials; QuixFill (QF) and XtraFill (XF) as packable bulk-fill materials. Samples were prepared for each analysis and test by applying the same procedure, but with different diameters and thicknesses appropriate to the analysis and test requirements. Thermal properties were determined by thermogravimetric analysis (TG/DTG) and differential scanning calorimetry (DSC) analysis; the Vickers microhardness (VHN) was measured after 1, 7, 15 and 30days of storage in water...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532036/facile-fabrication-of-pan-pdms-core-shell-nanofibers-from-synchronous-photopolymerization
#2
Qijian Niu, Xiaolei Zhu, Yunhui Tang, Jun Nie, Guiping Ma
Different from the traditional method for fabricating core-shell structure nanofiber, the PAN/PDMS nanofibers with core-shell structure (PAN as the core layer and PDMS as the shell layer) have been illustrated, which combines with the synchronous photopolymerization during emulsion electrospinning process. The morphology and structure of as-fabricated PAN/PDMS nanofibers are characterized by SEM and TEM. The composition of PAN/PDMS nanofibers is characterized by FTIR, XPS, TG, and DTG, successfully. The photopolymerization process is characterized by UV-vis spectroscopy indirectly...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532025/new-tetrahedral-zinc-halide-schiff-base-complexes-synthesis-crystal-structure-theoretical-3d-hirshfeld-surface-analyses-antimicrobial-and-thermal-studies
#3
L Taghizadeh, M Montazerozohori, A Masoudiasl, S Joohari, J M White
A new bidentate Schiff base ligand named as N,N'-bis((E)-3-phenylallylidene)butane-1,4-diamine (L) and three its zinc halide complexes were synthesized and characterized by FT-IR, (1)H NMR, (13)C NMR and UV-Vis spectroscopy. The crystal structure of zinc bromide and iodide complexes were characterized using single crystal X-ray diffraction. The two structures are isomorphous, crystallizing in the monoclinic crystal system with space group C2/c with closely similar unit cell dimensions. In these complexes, the Zn(II) ion is in the center of a distorted tetrahedral environment completed by two iminic nitrogen atoms of Schiff base ligand and two halide anions...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531995/scavenging-free-radicals-and-soaring-osteoinduction-by-extra-cellular-matrix-protein-based-nanocomposites-on-degenerative-bone-treatments
#4
Kavitha Kandiah, Navaneethan Duraisamy, Vinoth Amirthalingam, Balagurunathan Ramasamy
A number of materials are now available to alleviate the ever-growing bone disruption. However, these are inadequate and inappropriate for addressing issues associated natural process of aging and degeneration of bone due to diseases. This study advances the existing material and offers more privileged and synergistically active remedy for these conditions. Here, they are three different nano-composites prepared such as nano-TiO2 with chitosan (TC), nano-TiO2 with chondroitin 4-sulfate (TG), and nano-TiO2 with chitosan and chondroitin 4-sulfate (TCG), whereas nano-TiO2 act as a control...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531990/safety-protocol-for-the-gold-nanoparticles-administration-in-rats
#5
Alexandre Pastoris Muller, Gabriela Kozuchovski Ferreira, Sabrina da Silva, Renata Tiscoski Nesi, Gustavo de Bem Silveira, Carolini Mendes, Ricardo A Pinho, Marcos Marques da Silva Paula, Paulo Cesar Lock Silveira
Gold nanoparticles (GNPs) have antioxidant and anti-inflammatory effects. However, toxicity is still a concern; therefore, it is critical to study both the therapeutic and toxic properties of GNPs. In this study, we evaluated the effects of the intraperitoneal administration of GNPs (20nm, at a concentration of 2.5mg/L for 21days) every 24 or 48h on oxidative stress, antioxidant status, and electron chain transport (ETC) in the brain. Liver histology and blood marker analyses were conducted to establish a time routine of GNP administration...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531979/synthesis-and-characterization-of-glycyrrhizic-acid-coated-iron-oxide-nanoparticles-for-hyperthermia-applications
#6
Mostafa Saeedi, Omid Vahidi, Shahin Bonakdar
In the present study, iron oxide magnetic nanoparticles (IONPs) were synthesized using the oxidative precipitation method for biomedical applications. Glycyrrhizic acid (GA) extracted from the roots of licorice plant was used as the coating agent for the synthesized nanoparticles (GAIONPs). The crystal phase, morphology and size were investigated by XRD, FE-SEM and TEM. The saturation magnetization (ms) value of the nanoparticles was measured by VSM indicating lowered ms of the GAIONPs with respect to that of the IONPs due to the presence of GA...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531900/factors-associated-with-blood-pressure-variability-based-on-ambulatory-blood-pressure-monitoring-in-subjects-with-hypertension-in-china
#7
Wei Li, YanXia Yu, Dehong Liang, En-Zhi Jia
BACKGROUND/AIMS: We examined the factors associated with blood pressure variability in a multi-ethnicity prospective study in China to gain more evidence to guide the prevention and management of hypertension through risk factor intervention. METHODS: A total of 318 consecutive adult subjects aged 29-94 years with suspected or known hypertension were enrolled in this study. Blood pressure variability measurements were based on ambulatory blood pressure monitoring...
May 25, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28531788/association-of-dietary-factors-with-severity-of-coronary-artery-disease
#8
Namita Mahalle, M K Garg, S S Naik, M V Kulkarni
BACKGROUND: Cardiovascular disease has taken epidemic proportions during past decades. Cardiovascular risk factors contribute to progression of coronary lesions, worsening the patient's prognosis. This study was planned to analyze the association of dietary factors with severity of coronary artery disease (CAD) in Indian patients. METHODS: Three hundred patients with known coronary disease above the age of 25 years were included in this study. Blood samples were collected for biochemical markers...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28530536/leuprolide-acetate-release-study-from-%C3%AE-irradiated-plga-based-in-situ-forming-system
#9
Mona Shapourgan, Hamid Mobedi, Nasrin Sheikh, Aliasghar Behnamghader, Arezou Mashak
It is well known that the properties of polymers can be altered by exposure to γ- ray. γ-irradiation has been used as a sterilization method for biodegradable polymeric drug delivery devices, and its drug release profile must not be significantly changed. In this study, the effect of γ-irradiation with 8 kGy doses on the release profile of leuprolide acetate from PLGA-based in situ forming system was evaluated. PLGA-based in situ forming systems were prepared by injecting some specific amount of irradiated solution of PLGA /NMP containing drug into a buffer phosphate pH 7...
March 28, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28530470/cd73-controls-extracellular-adenosine-generation-in-the-trigeminal-nociceptive-nerves
#10
X Liu, L Ma, S Zhang, Y Ren, R T Dirksen
Purinergic signaling is involved in pain generation and modulation in the nociceptive sensory nervous system. Adenosine triphosphate (ATP) induces pain via activation of ionotropic P2X receptors while adenosine mediates analgesia via activation of metabotropic P1 receptors. These purinergic signaling are determined by ecto-nucleotidases that control ATP degradation and adenosine generation. Using enzymatic histochemistry, we detected ecto-AMPase activity in dental pulp, trigeminal ganglia (TG) neurons, and their nerve fibers...
June 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28530466/angiotensin-type-1-receptor-a1166c-polymorphism-and-systemic-lupus-erythematosus-correlation-with-cellular-immunity-and-oxidative-stress-markers
#11
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/28530326/-serum-thyroglobulin-levels-and-estimated-iodine-intake-in-adults-exposed-to-iodine%C3%A2-diluted-desalinated-drinking-water
#12
Dov Gefel, Svetlana Turkot, Dorit Aharoni, Shlomo Fytlovich, Yaniv S Ovadia
AIMS: The aim of this study was to describe thyroglobulin levels and iodine intake estimations in a convenience sample of Israeli adults without TD in the Ashkelon District, where SWRO desalination has become the major source of drinking water. BACKGROUND: Iodine deficiency (ID) is a significant risk factor for thyroid disease (TD). Recently, there were increases in both selfreported use of TD medication among Israeli adults and the national use of sea water reverse osmosis (SWRO) desalinated water...
August 2016: Harefuah
https://www.readbyqxmd.com/read/28529969/antioxidant-and-synergistic-antidiabetic-activities-of-a-three-plant-preparation-used-in-cameroon-folk-medicine
#13
Bruno Moukette Moukette, Vicky Jocelyne Ama Moor, Cacral Prosper Biapa Nya, Pauline Nanfack, Francine Tankeu Nzufo, Marcel Azabji Kenfack, Jeanne Yonkeu Ngogang, Constant Anatole Pieme
Introduction. Several plant preparations like a mixture of aqueous extracts of Spilanthes africana; Portulaca oleracea; and Sida rhombifolia are currently utilized in Foumban (West Cameroon) to manage diabetes. The aim of this study is to investigate the antidiabetic property of the aqueous mixture of three plant extracts (1 : 1 : 1) on streptozotocin induced diabetes rats. Methods. Diabetes was induced to rats by intraperitoneal (i.p.) injection of streptozotocin (STZ) at a dose of 50 mg/kg b.w...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28529953/bis-4-4-dimethyl-2-2-bipyridine-oxidovanadium-iv-sulfate-dehydrate-potential-candidate-for-controlling-lipid-metabolism
#14
Renata Francik, Jadwiga Kryczyk-Kozioł, Sławomir Francik, Ryszard Gryboś, Mirosław Krośniak
Vanadium is a trace element mainly connected with regulation of insulin metabolism which is particularly important in diabetes. In recent years, organic complexes of vanadium seem to be more interesting than inorganic salts. Nevertheless, the effect of vanadium on lipid metabolism is still a problematic issue; therefore, the main purpose of this study was to investigate the effect of 3 organic complexes of vanadium such as sodium (2,2'-bipyridine)oxidobisperoxovanadate(V) octahydrate, bis(2,2'-bipyridine)oxidovanadium(IV) sulfate dehydrate, and bis(4,4'-dimethyl-2,2'-bipyridine)oxidovanadium(IV) sulfate dihydrate in conjunction with high-fat as well as control diet in nondiabetes model on the following lipid parameters: total cholesterol, triglycerides, and high density lipoprotein as well as activity of paraoxonase 1...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28529818/high-protein-fish-oil-diet-prevents-hepatic-steatosis-in-noncnzo10-mice-association-with-diet-genetics-regulated-micro-rnas
#15
Nikhil Adi, Jennipher Adi, Roberta Marques Lassance-Soares, Paul Kurlansky, Hong Yu, Keith A Webster
OBJECTIVE: NONcNZO10 (NZ10) mice are predisposed to obesity and develop type 2 diabetes (T2D) and hepatic steatosis even when maintained on a control diet (CD) of 6% fat. Studies were designed to determine whether this extreme susceptibility phenotype could be alleviated by diet and if so the molecular targets of diet. METHODS: NZ10 and SWR/J (SWR) control mice were fed a CD or a test diet of high protein and fish oil (HPO) for 19 weeks and then analyzed for steatosis, blood chemistry, hepatic gene and micro-RNA expression...
June 2016: Journal of Diabetes & Metabolism
https://www.readbyqxmd.com/read/28529699/evolution-immunity-and-the-emergence-of-brain-superautoantigens
#16
Serge Nataf
While some autoimmune disorders remain extremely rare, others largely predominate the epidemiology of human autoimmunity. Notably, these include psoriasis, diabetes, vitiligo, thyroiditis, rheumatoid arthritis and multiple sclerosis. Thus, despite the quasi-infinite number of "self" antigens that could theoretically trigger autoimmune responses, only a limited set of antigens, referred here as superautoantigens, induce pathogenic adaptive responses. Several lines of evidence reviewed in this paper indicate that, irrespective of the targeted organ (e...
2017: F1000Research
https://www.readbyqxmd.com/read/28529649/sak-hv-triggered-a-short-period-lipid-lowering-biotherapy-based-on-the-energy-model-of-liver-proliferation-via-a-novel-pathway
#17
Chao Zhang, Zhiguang Huang, Haoran Jing, Wenliang Fu, Min Yuan, Wenrong Xia, Ling Cai, Xiangdong Gan, Yao Chen, Minji Zou, Minhui Long, Jiaxi Wang, Min Wang, Donggang Xu
The accumulations of excess lipids within liver and serum are defined as non-alcoholic fatty liver disease (NAFLD) and hyperlipemia respectively. Both of them are components of metabolic syndrome that greatly threaten human health. Here, a recombinant fusion protein (SAK-HV) effectively treated NAFLD and hyperlipemia in high-fat-fed ApoE(-/-) mice, quails and rats within just 14 days. Its triglyceride and cholesterol-lowering effects were significantly better than that of atorvastatin during the observation period...
2017: Theranostics
https://www.readbyqxmd.com/read/28529630/spectroscopic-photoacoustic-molecular-imaging-of-breast-cancer-using-a-b7-h3-targeted-icg-contrast-agent
#18
Katheryne E Wilson, Sunitha V Bachawal, Lotfi Abou-Elkacem, Kristen Jensen, Steven Machtaler, Lu Tian, Jürgen K Willmann
Purpose: Breast cancer imaging methods lack diagnostic accuracy, in particular for patients with dense breast tissue, and improved techniques are critically needed. The purpose of this study was to evaluate antibody-indocyanine green (ICG) conjugates, which undergo dynamic absorption spectrum shifts after cellular endocytosis and degradation, and spectroscopic photoacoustic (sPA) imaging to differentiate normal breast tissue from breast cancer by imaging B7-H3, a novel breast cancer associated molecular target...
2017: Theranostics
https://www.readbyqxmd.com/read/28529539/jiangtang-decoction-ameliorate-diabetic-nephropathy-through-the-regulation-of-pi3k-akt-mediated-nf-%C3%AE%C2%BAb-pathways-in-kk-ay-mice
#19
Jin-Ni Hong, Wei-Wei Li, Lin-Lin Wang, Hao Guo, Yong Jiang, Yun-Jia Gao, Peng-Fei Tu, Xue-Mei Wang
BACKGROUND: Jiangtang decoction (JTD) is a China patented drug which contains Euphorbia humifusa Willd, Salvia miltiorrhiza Bunge, Astragalus mongholicus Bunge, Anemarrhena asphodeloides Bunge, and Coptis chinensis Franch. For decades, it has also been used clinically to treat diabetic nephropathy (DN) effectively; however, the associated mechanisms remain unknown. Thus, the present study aimed to examine the protective efficacy of JTD in DN and elucidate the underlying molecular mechanisms...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28529329/body-mass-index-growth-trajectories-associated-with-the-different-parameters-of-the-metabolic-syndrome-at-adulthood
#20
K V Giudici, M-F Rolland-Cachera, G Gusto, D Goxe, O Lantieri, S Hercberg, S Péneau
BACKGROUND: Growth trajectories have shown to be related to obesity and metabolic risks in later life, however body mass index (BMI) trajectories according to the presence or absence of metabolic syndrome (MS) and its parameters in adulthood are scarce in literature. OBJECTIVES: To investigate BMI trajectories during childhood in relation to MS and its parameters in adult age. METHODS: A total of 1919 subjects (43.4% male, 20-60y) participated in this retrospective cohort study...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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