https://www.selleckchem.com/products/sr-717.html The extracellular matrix is a highly reactive scaffold formed by a wide array of multifunctional molecules, encompassing collagens and noncollagenous glycoproteins, proteoglycans, glycosaminoglycans, and polysaccharides. Besides outlining the tissue borders, the extracellular matrix profoundly regulates the behavior of resident cells by transducing mechanical signals, and by integrating multiple cues derived from the microenvironment. Evidence is mounting that changes in the biostructure of the extracellular matrix are instrumental for biliary repair. Following biliary damage and eventually, malignant transformation, the extracellular matrix undergoes several quantitative and qualitative modifications, which direct interactions among hepatic progenitor cells, reactive ductular cells, activated myofibroblasts and macrophages, to generate the ductular reaction. Herein, we will give an overview of the main molecular factors contributing to extracellular matrix remodeling in cholangiopathies. Then, we will discuss the structural alterations in terms of biochemical composition and physical stiffness featuring the "desmoplastic matrix" of cholangiocarcinoma along with their pro-oncogenic effects. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.in English, German EINLEITUNG Exzessive Gewichtszunahme (EGZ) stellt einen Risikofaktor in der Schwangerschaft dar. Da die EGZ ebenso wie Hypertensive Schwangerschaftserkrankungen (HES) und die intrauterine Wachstumsrestriktion (IUGR) mit veränderten Konzentrationen Apolipoprotein B- (ApoB) haltiger Lipoproteine einhergehen, wurde der Hypothese nachgegangen, ob die ApoB-Konzentration im ersten Trimester diese Ereignisse vorhersagen kann. METHODEN Von 547 Schwangeren zeigten 95 eine unzureichende, 171 eine empfohlene und 281 eine EGZ. 23 Schwangere wiesen eine HES, 67 ein small for gestational age (SGA) Neugeborenes und sieben eine IUGR auf. Die ApoB-Konzentration