Osteopontin (OPN) spliced variants (OPN-SV: OPNa, OPNb, and OPNc) are aberrantly expressed in tumors and frequently associated with cancer progression. This holds true for papillary thyroid carcinoma (PTC), which is the most common type of thyroid cancer (TC). PTC often presents with desmoplasia and dystrophic calcification, including psammoma bodies (PB).
View Article and Find Full Text PDFPortuguese honeys (n = 15) from different botanical and geographical origins were analysed regarding their quality parameters (diastase activity, hydroxymethylfurfural content, moisture and pH), colour (L*, a*, b*) and antioxidant profile (total phenolics content, total flavonoids content, DPPH• scavenging activity, and ferric reducing power). The samples were analysed fresh and after 4-years of storage (at 25 °C and protected from light). The hydroxymethylfurfural content and diastase activity of the fresh samples were in accordance with the recommended values described in the legislation.
View Article and Find Full Text PDFMexico’s soda tax has reduced sales of sugar-sweetened beverages. Time will tell whether the tax helps to reduce obesity prevalence as well. Andréia Azevedo Soares reports.
View Article and Find Full Text PDFCountries already squeezed by the financial crisis are struggling to respond to the health needs of large numbers of refugees and migrants. Andréia Azevedo Soares and Menelaos Tzafalias report.
View Article and Find Full Text PDFHow developing countries will make the transition to sustainable clean-energy economies is a major challenge for the United Nations summit that opens in Paris this month. Christiana Figueres talks to Andréia Azevedo Soares.
View Article and Find Full Text PDFUnlabelled: Adequate polymerization plays an important role on the longevity of the composite resin restorations.
Objectives: The aim of this study was to evaluate the effect of light-curing units, curing mode techniques and storage media on sorption, solubility and biaxial flexural strength (BFS) of a composite resin.
Material And Methods: Two hundred and forty specimens were made of one composite resin (Esthet-X) in a stainless steel mold (2 mm x 8 mm Ø), and divided into 24 groups (n=10) established according to the 4 study factors: light-curing units: quartz tungsten halogen (QTH) lamp and light-emitting diodes (LED); energy densities: 16 J/cm² and 20 J/cm²; curing modes: conventional (CM) and pulse-delay (PD); and permeants: deionized water and 75% ethanol for 28 days.