Definition and Etiology. Primary sclerosing cholangitis (PSC) is a chronic, progressive, cholestatic liver disease resulting from inflammation, fibrosis, and destruction of the intrahepatic and extrahepatic bile ducts. This leads to multiple areas of stricturing in the biliary tree and eventually to cirrhosis.
Octinoxate is a chemical compound that is found in many different types of cosmetics and personal care products. Manufacturers derive this ingredient from petroleum by-products, then add it to makeup, lotion and moisturizers.unscreen products containing octinoxate may reduce freckles. Octinoxate is used in some lipsticks and other cosmetics to provide protection from the sun. Octinoxate is found in most sunscreen products. Octinoxate is made from methanol and sulfuric acid.
Polydioxanone or poly-p-dioxanone is a colourless, crystalline, biodegradable polymer. Polydioxanone suture is an absorbable, sterile, surgical suture composed of the polyester, poly (p-dioxanone).Polydioxanone suture has been found to be non-antigenic, non-pyrogenic, and elicits only minimal tissue reactivity during the absorption process.Polydioxanone is a poly (ether-ester) characterized by a glass transition temperature in the range of 10Â°C and 0Â°C and a crystallinity of about 55%.olydioxanone suture has been found to be non-antigenic, non-pyrogenic, and elicits only minimal tissue reactivity during the absorption process. Polydioxanone is a poly (ether-ester) characterized by a glass transition temperature in the range of 10Â°C and 0Â°C and a crystallinity of about 55%.