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https://www.readbyqxmd.com/read/28812169/bond-strength-of-etch-and-rinse-and-self-etch-adhesive-systems-to-enamel-and-dentin-irradiated-with-a-novel-co2-9-3%C3%A2-%C3%AE-m-short-pulsed-laser-for-dental-restorative-procedures
#1
Peter Rechmann, N Bartolome, R Kinsel, R Vaderhobli, B M T Rechmann
The objective of this study was to evaluate the influence of CO2 9.3 μm short-pulsed laser irradiation on the shear bond strength of composite resin to enamel and dentin. Two hundred enamel and 210 dentin samples were irradiated with a 9.3 µm carbon dioxide laser (Solea, Convergent Dental, Inc., Natick, MA) with energies which either enhanced caries resistance or were effective for ablation. OptiBond Solo Plus [OptiBondTE] (Kerr Corporation, Orange, CA) and Peak Universal Bond light-cured adhesive [PeakTE] (Ultradent Products, South Jordan, UT) were used...
August 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28810951/veterans-and-agent-orange-update-2014
#2
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28808482/the-chinese-herb-prunella-vulgaris-promotes-apoptosis-in-human-well-differentiated-thyroid-carcinoma-cells-via-the-b-cell-lymphoma-2-bcl-2-associated-x-protein-caspase-3-signaling-pathway
#3
De-Tao Yin, Mengyuan Lei, Jianhui Xu, Hongqiang Li, Yongfei Wang, Zhen Liu, Runsheng Ma, Kun Yu, Xianghua Li
Prunella vulgaris (PV), a traditional Chinese herb, has been shown to be rich in bioactive chemicals and possess anti-proliferative and pro-apoptotic effects on tumor cells. The effect of PV on human well-differentiated thyroid carcinoma (WDTC), which accounts for the majority of common endocrine malignancies, remains to be elucidated. The present study aimed to investigate the function of PV on WDTC cell lines and apoptosis-associated signaling pathway activity. Additional studies demonstrated that PV may induce apoptosis in WDTC TPC-1 and FTC-133 cell lines, using the Cell Counting Kit-8 assay...
August 2017: Oncology Letters
https://www.readbyqxmd.com/read/28797210/removal-of-methyl-orange-by-heterogeneous-fenton-catalysts-prepared-using-glycerol-as-green-reducing-agent
#4
Natália S F Trotte, M Alzamora, D R Sánchez, Nakédia M F Carvalho
This study aims to prepare environmentally friendly iron catalysts supported on silica, using glycerol as green reducing and stabilizing agent, for application in heterogeneous Fenton degradation of the pollutant dye methyl orange. The catalysts were characterized by XRD, AAS, SEM, TEM, thermogravimetric analyses, Mössbauer and FTIR spectroscopies, which revealed the formation of iron(II)/(III) oxalates from the oxidation of glycerol by the iron(III) nitrate precursor. Besides, iron oxihydroxide nanoparticles with superparamagnetic behavior were also formed...
August 10, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28795302/novel-combination-of-2-methoxyestradiol-and-cyclophosphamide-enhances-the-antineoplastic-and-pro-apoptotic-effects-on-s-180-ascitic-tumour-cells
#5
Srabantika Mallick, Atish Barua, Goutam Paul, Samarendra Nath Banerjee
Sarcoma 180 (S-180) tumour cell line is a stable murine tumour cell line with 98-99% stumour takes capacity in Swiss albino mouse - Mus musculus. 2 Methoxyestradiol (2ME) - a promising anti-neoplastic and anti-angiogenic agent, showed toxicity to host body in higher concentration. Cyclophosphamide (CP), the anti-neoplastic agent has long been used as a chemotherapeutic drug for treatment of different cancers. Our studies have shown that the combination effect of 2ME and CP on S-180 tumour cell line is anti-proliferative and less toxic...
August 10, 2017: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/28767066/isorhamnetin-and-quercetin-derivatives-as-anti-acetylcholinesterase-principles-of-marigold-calendula-officinalis-flowers-and-preparations
#6
Daniil N Olennikov, Nina I Kashchenko, Nadezhda K Chirikova, Anzurat Akobirshoeva, Ifrat N Zilfikarov, Cecile Vennos
Marigold (Calendula officinalis L.) is one of the most common and widespread plants used medicinally all over the world. The present study aimed to evaluate the anti-acetylcholinesterase activity of marigold flowers, detect the compounds responsible and perform chemical analysis of marigold commercial products. Analysis of 23 varieties of C. officinalis flowers introduced into Siberia allowed us to select the Greenheart Orange variety due to the superior content of flavonoids (46.87 mg/g) and the highest inhibitory activity against acetylcholinesterase (IC50 63...
August 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28763989/a-modified-fox-1-method-for-micro-determination-of-hydrogen-peroxide-in-honey-samples
#7
Dan Li, Meng Wang, Ni Cheng, Xiaofeng Xue, Liming Wu, Wei Cao
Hydrogen peroxide (H2O2) is a major antibacterial activity-associated biomarker in honey. Measurement of endogenous H2O2 in honey is of great value in prediction of the H2O2-depended antibacterial activity and characterization or selection of honey samples for their use as an antibacterial agent or natural food preservative. Considering current methods for H2O2 determination are either time-consuming or complicated with their high-cost, a study was conducted to modify and validate the spectrophotometry-based ferrous oxidation-xylenol orange (FOX-1) method for micro-determination of H2O2 in honey samples...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28735564/synergistic-effect-of-co-digestion-to-enhance-anaerobic-degradation-of-catering-waste-and-orange-peel-for-biogas-production
#8
Muzammil Anjum, Azeem Khalid, Samia Qadeer, Rashid Miandad
Catering waste and orange peel were co-digested using an anaerobic digestion process. Orange peel is difficult to degrade anaerobically due to the presence of antimicrobial agents such as limonene. The present study aimed to examine the feasibility of anaerobic co-digestion of catering waste with orange peel to provide the optimum nutrient balance with reduced inhibitory effects of orange peel. Batch experiments were conducted using catering waste as a potential substrate mixed in varying ratios (20-50%) with orange peel...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28731187/isolation-and-purification-of-novel-peptides-derived-from-sepia-ink-effects-on-apoptosis-of-prostate-cancer-cell-pc%C3%A2-3
#9
Fangfang Huang, Yinwen Jing, Guofang Ding, Zuisu Yang
Novel prostate cancer therapeutics are in high demand. In order to identify potential therapeutic targets, protein from sepia ink was hydrolyzed by utilizing pepsin in an orthogonal array design. Pepsin hydrolysate (SH) obtained at optimal conditions exhibited the highest antitumor activity. Subsequently, a novel antitumor peptide, which was termed SHP, was isolated through ultrafiltration, gel filtration chromatography and reversed phase high‑performance liquid chromatography. The amino acid sequence of SHP was identified as Leu‑Lys‑Glu‑Glu‑Asn‑Arg‑Arg‑Arg‑Arg‑Asp with a molecular mass of 1371...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28728109/zero-valent-aluminum-for-reductive-removal-of-aqueous-pollutants-over-a-wide-ph-range-performance-and-mechanism-especially-at-near-neutral-ph
#10
Shiying Yang, Di Zheng, Tengfei Ren, Yixuan Zhang, Jia Xin
Zero-valent aluminum (ZVAl) draws much attention due to its strong reducibility. However, under neutral pH conditions, the reduction ability of ZVAl for pollutant removal has still been suspected because of the formed compact surface film of Al-(hydr)oxide. In this study, unmodified ZVAl was employed to reductively remove aqueous pollutants over a wide pH range, and its performance and mechanism, especially at near-neutral pH, were systematically studied for the first time. Results demonstrated that ZVAl had a wide range of pH applicability from 2 to 12, even in neutral environment...
July 6, 2017: Water Research
https://www.readbyqxmd.com/read/28720979/first-report-of-phyllosticta-citricarpa-and-description-of-two-new-species-p-%C3%A2-paracapitalensis-and-p-%C3%A2-paracitricarpa-from-citrus-in-europe
#11
V Guarnaccia, J Z Groenewald, H Li, C Glienke, E Carstens, V Hattingh, P H Fourie, P W Crous
The genus Phyllosticta occurs worldwide, and contains numerous plant pathogenic, endophytic and saprobic species. Phyllosticta citricarpa is the causal agent of Citrus Black Spot disease (CBS), affecting fruits and leaves of several citrus hosts (Rutaceae), and can also be isolated from asymptomatic citrus tissues. Citrus Black Spot occurs in citrus-growing regions with warm summer rainfall climates, but is absent in countries of the European Union (EU). Phyllosticta capitalensis is morphologically similar to P...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28720093/solanum-nigrum-unripe-fruit-fraction-attenuates-adriamycin-resistance-by-down-regulating-multi-drug-resistance-protein-mdr-1-through-jak-stat-pathway
#12
Sankar Jagadeeshan, Diana David, S Jisha, S Manjula, S Asha Nair
BACKGROUND: Solanum nigrum, herbal plant that commonly grows in temperate climate zone, has been used as a traditional folk medicine whose ripen fruits were proven to exhibit anti-tumor properties. In traditional Chinese medicine, it has been used for centuries to cure inflammation, edema, mastitis and hepatic cancer and in the Ayurvedic system of traditional medicine in India, S. nigrum is applied against enteric diseases, ulcer, diarrhea and skin diseases. A methanolic glycosidic extract fraction of unripe fruit of S...
July 18, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28664148/synthesis-of-silver-nanoparticles-using-bacterial-exopolysaccharide-and-its-application-for-degradation-of-azo-dyes
#13
Chinnashanmugam Saravanan, Rajendiran Rajesh, Thanamegam Kaviarasan, Krishnan Muthukumar, Digambar Kavitake, Prathapkumar Halady Shetty
In this study, the synthesis and characterization of exopolysaccharide-stabilized sliver nanoparticles (AgNPs) was carried out for the degradation of industrial textile dyes. Characterization of AgNPs was done using surface plasmon spectra using UV-Vis spectroscopy, X-ray diffraction (XRD) and Raman spectroscopy. The morphological nature of AgNPs was determined through transmission electron microscopy (TEM), scanning electron microscopy (SEM) and atomic force microscopy (AFM), which indicated that the AgNPs were spherical in shape, with an average size of 35 nm...
September 2017: Biotechnology Reports
https://www.readbyqxmd.com/read/28652729/nir-responsive-liposomal-system-for-rapid-release-of-drugs-in-cancer-therapy
#14
Ming-Mao Chen, Yuan-Yuan Liu, Guang-Hao Su, Fei-Fei Song, Yan Liu, Qi-Qing Zhang
To design a rapid release liposomal system for cancer therapy, a NIR responsive bubble-generating thermosensitive liposome (BTSL) system combined with photothermal agent (Cypate), doxorubicin (DOX), and NH4HCO3 was developed. Cypate/DOX-BTSL exhibited a good aqueous stability, photostability, and photothermal effect. In vitro release suggested that the amounts of DOX released from BTSL were obviously higher than that of (NH4)2SO4 liposomes at 42°C. After NIR irradiation, the hyperthermic temperature induced by Cypate led to the decomposition of NH4HCO3 and the generation of a large number of CO2 bubbles, triggering a rapid release of drugs...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28648953/synthesis-of-thiazole-linked-indolyl-3-glyoxylamide-derivatives-as-tubulin-polymerization-inhibitors
#15
Sravanthi Devi Guggilapu, Lalita Guntuku, T Srinivasa Reddy, Atulya Nagarsenkar, Dilep Kumar Sigalapalli, V G M Naidu, Suresh K Bhargava, Nagendra Babu Bathini
A series of thiazole linked indolyl-3-glyoxylamide derivatives were synthesized and evaluated for their in vitro cytotoxic activity against DU145 (prostate), PC-3 (prostate), A549 (lung) and HCT-15 (colon) cancer cell lines by employing the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Among all the synthesized compounds, compound 13d displayed cytotoxicity of IC50 = 93 nM towards DU145 cancer cell line. The most active compound 13d was also tested on RWPE-1 cells and was found to be safe compared to the DU145 cells...
June 15, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28610997/identification-of-multienzymatic-complexes-in-the-clonostachys-byssicola-secretomes-produced-in-response-to-different-lignocellulosic-carbon-sources
#16
Helder Andrey Rocha Gomes, Adelson Joel da Silva, Diana Paola Gómez-Mendoza, Agenor Castro Moreira Dos Santos Júnior, Nicholas de Mojana di Cologna, Rosane Mansan Almeida, Robert Neil Gerard Miller, Wagner Fontes, Marcelo Valle de Sousa, Carlos André Ornelas Ricart, Edivaldo Ximenes Ferreira Filho
Multienzymatic complexes with plant lignocellulose-degrading activities have recently been identified in filamentous fungi secretomes. Such complexes have potential biotechnological applications in the degradation of agro-industrial residues. Fungal species from the Clonostachys genus have been intensively investigated as biocontrol agents; however so far their use as producers of lignocellulose-degrading enzymes has not been extensively explored. Secretomes of Clonostachys byssicola following growth on different carbon sources (passion fruit peel, soybean hulls, cotton gin trash, banana stalk, sugarcane bagasse, orange peel, and a composition of soybean hulls: cotton gin trash:orange peel) were subjected to enzymatic assays...
June 10, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28597181/clinical-signs-pathophysiology-and-management-of-cutaneous-side-effects-of-anti-tumor-necrosis-factor-agents
#17
REVIEW
Siegfried Segaert, Caroline Hermans
Approximately one in four patients treated with anti-TNF agents (infliximab, etanercept, adalimumab, certolizumab, and golimumab) develops cutaneous adverse events, typically months to years after the initiation of treatment, with xerosis cutis, eczema (often psoriasiform), psoriasis, palmoplantar pustulosis, cutaneous infections, alopecia, and skin cancer being the most frequently encountered. The typical skin lesion of anti-tumor necrosis factor (TNF)-treated patients is orange-red psoriasiform eczema affecting the flexures, genitalia, scalp, or face, with high susceptibility to bacterial superinfection with Staphylococcus aureus...
June 8, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28593171/withania-somnifera-targets-interleukin-8-and-cyclooxygenase-2-in-human-prostate-cancer-progression
#18
Anand Setty Balakrishnan, Abel Arul Nathan, Mukesh Kumar, Sudhakar Ramamoorthy, Sathish Kumar Ramia Mothilal
BACKGROUND: Prostate cancer (PC) is a common noncutaneous malignancy in men. The incidence of PC is increasing at an alarming rate across the globe. Progression of PC is associated with elevated levels of interleukin-8 (IL-8) and cyclooxygenase-2 (COX-2) in malignant cells. Overexpression of these players is accompanied by chronic inflammation, increased angiogenesis, proliferation, migration, and inhibition of apoptosis. Moreover, their elevated circulating levels promote the disease progression from androgen-dependent to androgen-independent state...
June 2017: Prostate International
https://www.readbyqxmd.com/read/28573481/copper-pyrithione-a-booster-biocide-induces-abnormal-muscle-and-notochord-architecture-in-zebrafish-embryogenesis
#19
Kelly M Almond, Louis D Trombetta
The metal pyrithiones, principally zinc (ZnPT) and copper (CuPT), are replacing tributyltin (TBT) as antifouling agents. Zebrafish embryos were exposed within the first hour after fertilization to 12 and 64 µg/L of CuPT for 24 h. Morphological abnormalities in notochord and muscle architecture were observed at 96 h post fertilization (hpf). TEM revealed abnormal electron dense deposits in the notochord sheath and muscle fiber degeneration in animals treated with 12 µg/L of CuPT. Embryos that were exposed to 64 µg/L of CuPT displayed severe muscle fiber degeneration including abnormal A and I band patterning and altered z disk arrangement...
June 1, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28543415/the-anatomy-of-research-scandals
#20
Carl Elliott
For the past two years, I have taught a seminar on medical research scandals. The syllabus looks like a highlight reel of exploitation and abuse: children fed plutonium-laced breakfast cereal, prisoners dosed with the active ingredient in Agent Orange, mental patients given psychedelic drugs and massive electroconvulsive therapy before being sent into curare-induced paralysis and a coma. I designed the seminar to crush the idealism of future physicians by illuminating the dark patterns that research scandals typically follow...
May 2017: Hastings Center Report
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